These features of seeds all have in common for They all allow for seed dispersal.
What is seed dispersal?Seed dispersal is the mechanism by which plant seeds are transported to new sites for germination and the establishment of new individuals. Animals commonly mediate this process, and consequently, the ultimate fate of seeds depends on their effectiveness as seed dispersersDispersal can be defined as the process by which individuals move from the immediate environment of their parents to establish in an area more or less distant from them.Dispersal is the spreading of things over a wide area. Plants have different mechanisms of dispersal for their spores. Synonyms: scattering, spread, distribution, dissemination More Synonyms of dispersalDispersal of seeds is very important for the survival of plant species. If plants grow too closely together, they have to compete for light, water and nutrients from the soil. Seed dispersal allows plants to spread out from a wide area and avoid competing with one another for the same resources
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differentiate between primary pulmonary cancers and secondary lung cancers?
Primary lung cancer is a type of cancer that starts in the lungs. Secondary lung cancer is cancer that spreads from another part of the body to the lungs. Primary lung cancer is the topic of this page. Primary lung cancer comes in two main types.
These are categorized according to the kind of cells in which the cancer first appears. These are: Non-small-cell lung cancer is the most prevalent type, affecting between [tex]80[/tex] and [tex]85[/tex] of every [tex]100[/tex] cases. There are three possible varieties: adenocarcinoma, squamous cell carcinoma, or large-cell carcinoma. Lung cancer with small cells is less common and typically spreads more quickly than non-small-cell lung cancer.
The recommended treatments are determined by the type of lung cancer you have. Older people are more likely to get lung cancer. It rarely happens to people under [tex]40[/tex]. In the UK, over [tex]4[/tex] out of [tex]10[/tex] people diagnosed with lung cancer are over [tex]75[/tex].
Lung cancer can occur in people who have never smoked, but smoking is the leading cause, accounting for more than [tex]70%[/tex][tex]%[/tex] percentage of all cases. This is due to the fact that smoking regularly results in the inhalation of numerous toxic substances.
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What could have been a valid conclusion on the basis of Mendel's experiments ?
The differential inheritance of genes for two different traits may be a valid conclusion based on Mendel's experiments.
Mendel concluded that traits can be divided into overt and latent traits. He named these dominant and recessive traits respectively. Dominant traits are traits that are inherited unchanged by hybridization.
The key principles of Mendelian inheritance are summarized by Mendel's three laws: Law of Independent Collection, Law of Domination, Law of Separation.
Through his pea breeding experiments, Mendel developed his three principles of inheritance that account for the transmission of genetic traits before anyone knew of their existence. Mendel's discoveries greatly expanded our understanding of heredity and led to the development of new experimental methods.
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How a river is formed?
River are formed from water moving from a higher elevation to a lower elevation, all due to gravity.
In general, rivers comes from starting point where water begins to flow this source is popularly known as a headwater. This source of headwater are said to generated from rainfall or melting of snow in mountains. They can also come up from the groundwater or at edge of a lake or large pond.
Other major sources include a rain falls on the land that mixed with ground water that flows downhill into rivers and lakes and eventually towards the seas. for example Himalayan Rivers are generated from the melting of snow and glaciers that melts through out the years.
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Directions: Choose any river in the world. Conduct an internet search and list the following information on your river.
1. Name of river, its source (beginning of river), and outlet (where the river flows to)
2. Location of the source (state, county, country, etc.) and its watershed (flow pattern). Include states or areas the river flows through, including major cities or lakes
3. Direction the river flows, names of tributaries that join the river
4. Names of any structures that affect the river's flow (dams, levees, etc.)
5. What is the condition of the water in the river? List and describe any environmental concerns.
Please help!!
In India, state Uttarakhand At Gomukh, the end of the Gangotri Glacier, in the Himalayan Mountains, the Ganges River begins. The Bhagirathi River's crystal-clear waters are formed when this glacier's ice melts.
What is the river?The Bhagirathi River officially becomes the Ganges River when it joins the Alaknanda River as it runs over the Himalayas.
On the Ganga River, 24 dam or river barrage constructions were finished. Tehri, Haridwar, Rihand, and other well-known dams on the Ganga are only a few examples.
Therefore, one thousand times more copper parts per million are discharged in the Pandu than in unpolluted water before it ever reaches the Ganga.
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Which living thing is a typical marsh inhabitant? O A. Sea star O B. Octopus O C. Alligator O D. Peat
Option C is Correct. Alligator marsh is a kind of wetland where herbaceous plants thrive.
These can be discovered close to the shores of lakes or any other body of water. A marsh is a zone where the aquatic and terrestrial ecosystems meet. Rushes, reeds, and grasses are the predominant flora in wetlands.
Alligators are a type of amphibian that is related to crocodiles. These inhabit freshwater and brackish environments. These amphibians complete their life cycle in environments on land and in water. They favor environments like marshes, lakes, swamps, ponds, and rivers as their home. Alligators may survive in the marsh ecosystem thanks to the muddy terrestrial habitat and freshwater.
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On a hot summer day you can attend a baseball game or sit on your favorite beach and read a book without
immediate threat of heat exhaustion because the water in your cells resists rapid changes in temperature. This
is because it requires a great deal of energy to break
This is because it requires a great deal of energy to break large number of hydrogen bonds between water molecules.
The body reacts to an excessive loss of water and salt, typically through excessive sweating, by producing heat exhaustion. The elderly are especially susceptible to heat exhaustion. high blood pressure sufferers. those engaged in hot-weather work.
Not a covalent link to a hydrogen atom, hydrogen bonding is an unique kind of dipole-dipole interaction between molecules. It comes about as a result of the attraction between two extremely electronegative atoms, such as N, O, or F, and a hydrogen atom that is covalently bound to one of them.
A water molecule has a bent overall structure and is made up of two hydrogen atoms bound to an oxygen atom.
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An egg with 22 chromosomes that is fertilized by a normal sperm will result in nondisjunction during subsequent mitosis. O a zygote with disomy. a zygote with monosomy. a zygote with normal chromosome number. a zygote with trisomy.
An egg with 22 chromosomes if fertilized by normal sperm will result in a zygote with monosomy. So the correct option is C
Here the X and Y chromosome has equal chances of getting combined with the one X chromosome of an egg.
Monosomy is a condition in which there is an absence of a specific chromosome in a gamete that combines with a normal gamete to form the zygote. Monosomy is an example of the aneuploidy which results in the imbalance of the chromosome number in a zygote.
When a haploid gamete does not receive a chromosome during meiosis as a result of nondisjunction, it combines with another gamete to form a monosomic zygote. This mainly happens in girls and imparts various physical changes.
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What is the law of conservation of energy short answer?
According to the rule of conservation of energy, energy can only be transformed from one form of energy to another and cannot be created or destroyed.
This indicates that unless energy is added from the outside, a system always has the same quantity of energy.
Energy conservation was different from mass conservation. However, special relativity demonstrates that mass and energy are connected by the formula E = mc², and science currently holds the belief that mass-energy is conserved as a whole. Theoretically, this means that every mass-containing object can transform into pure energy and vice versa. However, it is thought that this is only feasible under the most severe physical circumstances, such as those that probably occurred in the cosmos just after the Big Bang.
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What type of reaction is seen when hydrogen peroxide is added to a microbial colony of catalase-producing bacteria
What type of reaction is seen when hydrogen peroxide is added to a microbial colony of catalase-producing bacteria is the rapid formation of gas bubbles.
Catalase is an enzyme that catalyzes the reaction in which hydrogen peroxide is broken down into water and oxygen This enzyme is able to oxidize 1 molecule of hydrogen peroxide to oxygen. Then simultaneously it can also reduce the second hydrogen peroxide molecule to water
Hydrogen peroxide is one of the breakdown products of every cell that uses oxygen as an energy source in metabolic processes. When hydrogen peroxide is added to microbial colonies it inhibits the growth of one bacterial species by another. Because this compound is added to catalase-producing bacteria, the catalase enzyme neutralizes the bactericidal effect by breaking the compound into water and oxygen or gas bubbles.
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You and your sibling are trick-or-treating. Realizing
that your bag of Halloween candy is heavier, depends
on your____.
A) subliminal stimuli
B) perceptual set
C) size constancy
D) difference threshold
When playing trick-or-treating and then realizing that the bag of Halloween candy is heavier, it depends on your perceptual set.
Thus, the correct answer is B.
Subliminаl stimulаtion is sensory stimulаtion below а person's аbsolute threshold for conscious perception. Perceptuаl set is the tendency for perceptions to be influenced by one’s expectаtions or preconceptions. Perceptuаl constаncy is the tendency to perceive the size, shаpe, color, аnd brightness of аn object аs remаining the sаme even when the imаge it cаsts on the retinа chаnges. The difference threshold is the smаllest difference in stimulаtion needed to recognize thаt two stimuli аre different from eаch other 50% of the time.
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Determine whether each factor of a terrestrial ecosystem is biotic or abiotic.
Trees
Fungii
Sunlight
Soil
Birds
The biotic factors of the terrestrial ecosystems are trees, fungi and birds while the abiotic factors are the sunlight and soil.
What is a terrestrial ecosystem?A terrestrial ecosystem is the type of ecosystem that is found in the earth environment which is made up of both the biotic and abiotic factors.
The biotic factors are those factors that are considered as the living things such as the trees, fungi and birds while the abiotic factors are the non living things found in the ecosystem and they are soil and sunlight.
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What are 5 examples of behavioral adaptations in animals?
Explanation:
1.Hibernation by bears
2.migration by birds
3.alteration in reproduction mode
4.altered feeding habits
5.distinct modes of communication.
Select the misplaced or dangling modifier.
The future of coral reefs concerns many marine biologists; as a source of diverse fish
species, our dependence upon coral reefs for food and for marine biodiversity cannot
be overstated.
The misplaced or dangling modifier in this sentence is "The future of coral reefs concerns many marine biologists."
What is a misplaced or dangling modifier?A phrase or clause that is not obviously or logically related to the word or words it modifies. Usually at the start of a sentence, fixed by rewriting it. A misplaced modifier is a word, phrase, or clause that is separated incorrectly from the word it modifies or describes.
A dangling modifier is usually attached to the incorrect subject or has no subject to modify at all. Dangling modifiers are generally corrected by introducing the subject immediately after the modifier or including it in the modifying phrase, in this case, "The future of coral reefs concerns many marine biologists" is placed after "as a source of diverse fish species."
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What were the two key concepts that Mendel's careful selection of specific traits allowed him to develop?
Mendel's research reveals two basic truths : Physical characteristics are determined by factors (now called genes) inherited from parents, and these factors are passed on in predictable patterns from generation to generation.
Understanding heredity was made possible by a scientist named Gregor Mendel who formulated certain laws for understanding heredity known as Mendel's Laws of Inheritance. Mendel proposed three laws of inheritance are: Law of Dominance, The Law of Segregation, Law of independent assortment. Both Mendelian segregation and independent permutation are explained by the physical behavior of chromosomes during meiosis. Mendel conducted experiments on peas and examined seven main contrasting characteristics of the plant. He then conducted both experiments to determine the laws of heredity.
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How do you calculate pedigree risk?
Pedigree risk calculation: A heterozygote has a 50% chance of not passing the a gene to their progeny. The likelihood that she won't pass it on to one of her two children is (1/2)(1/2) = 0.5 2 = 1/4.
By analysing a pedigree, we may identify genotypes, recognise phenotypes, and predict how a trait will be passed down in the future. A pedigree's information can be used to assess an allele's mode of inheritance, such as whether it is dominant, recessive, autosomal, or sex-linked.
Analyze the trait's dominance or recessivity. The trait must be possessed by one of the parents in order to be dominant. No generation will be exempt from prevailing traits. As long as both parents are heterozygous, a recessive characteristic can exist even if neither parent possesses it.
If the trait is autosomal or sex-linked, analyse the graph to find out (often X-linked). For instance, in X-linked recessive traits, males are noticeably more likely to be affected than females. Autosomal traits have an equal chance of affecting males and girls (usually in equal proportions).
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what's the Nucleolus function
The production and assembly of the cell's ribosomes take place in the nucleolus, a spherical component of the cell's nucleus. Ribosomal RNA genes are also translated into the nucleolus.
What is a nucleolus?A lengthy ribosomal RNA (rRNA) precursor molecule is translated from DNA in the nucleolus, where it is converted into three mature RNAs.
Assembled with particular proteins to form the big and small ribosomal subunits.
A section of the nucleus is known as the nucleolus. It is not encircled by a membrane, unlike the nucleus.
Therefore, ribosomal RNA genes are also translated into the nucleolus.
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Why do leaves change colour explain?
Carotenoids are pigments that give leaves their yellow and orange colors. These pigments are always present in leaves, but become more visible as the chlorophyll breaks down in the fall.
Leaves change B due to changes in the pigments that are present in the leaf. Chlorophyll is the pigment primarily responsible for the green color of leaves and is present in all leaves. Chlorophyll is important for the process of photosynthesis, which allows plants to convert light energy into chemical energy. However, as the days get shorter and temperatures cool in the fall, the level of chlorophyll in a leaf decreases and the chlorophyll breaks down. This process causes the green color of leaves to fade, revealing other pigments that have been present in the leaf all along.
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ook at the branching tree diagram below.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.
Which group of organisms evolved after dogs?
Only cats
Only marsupials
Both cats and marsupials
Both amphibians and reptiles
The amphibians are reptiles, marsupials, dogs, and cats.
What are the characteristics of amphibians?Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia.
They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia.
All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems.
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In contrast to transporters, ion channels in cellular membranes .... Group of answer choices interact strongly with the molecules they transport undergo a conformation change with every solute they transport can only mediate passive transport form pores that are always open are always controlled by voltage
In contrast to transporters, ion channels in cellular membranes can only mediate passive transport form pores.
Only in order to open a membrane pore that enables a certain ion into the membrane do channel proteins undergo a conformation in the membrane. In contrast to carrier proteins, the ion will only move along its concentration gradient. It has been discovered that all membrane transport proteins that have been in-depth study are multipass transmembrane proteins, meaning that their transporters chains repeatedly pass through the lipid bilayer. These proteins allow certain hydrophilic solutes to traverse the membrane without coming into touch with the hydrophobic interior of the lipid bilayer by establishing a continuous protein pathway across the membrane.
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The relative movements of Earth, the Moon, and the Sun create patterns of change we observe.
A complete and accurate model for explaining the phases of the Moon visible on Earth requires which of the following?
Select all that are needed.
- sun
-earth
- moon
The Sun constantly illuminates one-half of the Moon, but the amount of this half that we can view from Earth determines the phase that we observe. the phases of the Moon visible on Earth requires the sun, earth, and moon.
What are the phases of the Moon?Only the "night" side of the Moon is visible during the new moon. if there is a full moon, the Moon will rise just before dusk.
About two weeks pass between the new moon and the full moon. At the new moon, the luminous portion of the Moon that faces the Sun is complete.
Therefore, the many moon forms that are visible from Earth are referred to as phases of the moon.
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Controlled variable to the science experiment, “are fingerprints inherited?”
The controlled variable to the science experiment 'are fingerprints inherited' may include the use of molecular markers of known molecular size.
What is a controlled variable in a science experiment?A controlled variable in a science experiment is any condition that remains constant along the experiment and thus serves to make comparisons with the target experimental groups such as in this case the use of samples of individuals containing molecular markers of known molecular size, which allow us to identify the alleles of polymorphism in the sample after electrophoresis agarose gel and visualization under UV light.
Therefore, with this data, we can see that a controlled variable in a science experiment is any condition that stays the same in the experiment, and therefore it can be used to determine the presence or absence of a given allele in a DNA fingerprint.
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What are 4 things habitats provide?
The four important things which a habitat provides an organism are shelter, food, water and space.
A habitat is basically the place or the environment in which a particular organism lives. A habitat consists of both the biotic as well as abiotic factors. An organism can survive in a particular area if all its basic needs are met and the habitat therefore offers the organism with everything that it needs in order to survive which include a range of conditions.
The habitat provides an organism food, water and sunlight which are required for energy as well as growth. It also allows the organism to live and thrive there and therefore it provides shelter.
It also gives an organism space. Every organism needs different amount of space and therefore their habitats are specific to them, For example, big animals live in the forests and smaller animals like moles can burrow holes in the ground and survive.
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describe how the respiratory areas maintain a normal breathing pattern
The respiratory system is responsible for maintaining a normal breathing pattern by bringing oxygen into the body and removing carbon dioxide. This process is controlled by the brainstem.
How to describe the respiration?The brainstem sends signals to the muscles of respiration, including the diaphragm and the intercostal muscles. The diaphragm is the main muscle used for breathing and contracts during inhalation, causing the lungs to expand and fill with air.
The intercostal muscles, located between the ribs, also contract during inhalation to lift the ribcage and increase the volume of the thoracic cavity. During exhalation, the diaphragm and intercostal muscles relax, and the lungs deflate, pushing air out of the body. The rate and depth of breathing are also regulated by a complex network of nerve cells in the brainstem that respond to changes in blood oxygen and carbon dioxide levels, as well as to other physiological and psychological factors.
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_________ refers to a pea plant that is either homozygous dominant or homozygous recessive for a particular trait.
Answer:
A purebred.
Explanation:
A purebred is an animal or plant that carries two identical alleles for a particular gene or trait. This means that if the pea plant is homozygous dominant (has two of the same dominant alleles), or homozygous recessive (has two of the same recessive alleles), it is considered a purebred. A purebred always expresses only one form of the trait.
What happens after point A in regard to the population and resources available at that point in time?
At Point A, population and resources are consistent with each other. This meant at the time, that populace had access to sufficient resources.
Natural resources are anything that can be obtained from the environment for human needs. The more the population increases, the more natural resources are used to meet needs.
For example, food, clean water, clean air, and other needs. If the population increases, various problems will arise, for example, traffic flow density which causes air pollution, many agricultural lands being used as residential areas resulting in slums, and finally clean water becomes a problem. The more the population, the fewer natural resources will be eaten.
The complete question is seen in the picture
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what system works with the respiratory system to circulate blood and oxygen throughout the body
The cardiovascular system works with the respiratory system to circulate blood and oxygen throughout the body. The cardiovascular system includes the heart, blood vessels, and blood.
The cardiovascular system works in conjunction with the respiratory system to ensure that oxygen is delivered to the body's cells and that carbon dioxide is removed. When we breathe in, oxygen enters the lungs and is transferred to the blood, where it binds to hemoglobin. The oxygen-rich blood is then pumped by the heart to the body's cells, where it is used to produce energy. At the same time, respiratory system carbon dioxide, a waste product of cellular metabolism, is removed from the cells and carried cardiovascular system by the blood to the lungs, where it is exhaled. This process, known as respiratory system, is a continuous respiratory system cycle that ensures the body's cells receive the oxygen they need to function properly and that waste products are removed.
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A normal or narrow QRS complex indicates that the impulse was not formed in the ventricles and is termed:
A normal or narrow QRS complex indicates that the impulse was not formed in the ventricles and is termed supraventricular tachycardia.
Narrow (normal) QRS complexes indicate that the ventricles are depolarized normally; this can only be the case if the impulse (which depolarizes the ventricles) passes through the bundle of His, and hence it originates in the atria. In other words, tachycardias with narrow QRS complexes originate in the atria.
A narrow QRS complex (<120 ms) reflects rapid activation of the ventricles via the normal bundle of His-Purkinje system, which in turn suggests that the arrhythmia originates above or within the His bundle so supraventricular tachycardia occurs. Although such type of tachycardia often occurs in patients with a normal heart and rarely represents life threatening conditions.
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Can cyanide cause permanent damage?
Answer:
it can cause damage to the Brian and heart.
Explanation:
Which of the following can be examined with an ordinary bright-field microscope?
A. Wet mounts
B. Heat-fixed specimens
C. Chemical-fixed specimens
D. All of the choices are correct.
Answer: Option (D) will be the answer.
(Please correct me if I am wrong.)
Compared to the internal salinity of a fish in the ocean, the surrounding seawater would be considered:
The internal salinity of a fish in the ocean is much lower than that of the surrounding seawater. Generally, the internal salinity of a fish's body is about half to two-thirds of the surrounding seawater.
This is because a fish needs to maintain a balance between the salt and water concentrations inside their body in order to survive. The internal salinity of a fish must remain lower than the surrounding seawater in order for it to remain hydrated. This is done through a process called osmoregulation, whereby a fish is able to take in water while expelling salt.
The salinity of the surrounding seawater is determined by many factors, including the amount of dissolved salts, the temperature, and the amount of rainfall in the area. The salinity of the seawater can also be affected by ocean currents and the proximity to land masses.
Generally, the salinity of the ocean varies depending on the location and is typically between 3.5 and 4.5 parts per thousand. Therefore, when compared to the internal salinity of a fish in the ocean, the surrounding seawater would be considered much higher.
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