Answers
Variation is any difference in organisms of the same species, whereas gradualism is a microevolutionary theory.
What is a scientific theory?A scientific theory is a given explanation on a phenomenon from the real world (e.g., the evolution theory).
The fossil record is a piece of evidence for the evolution theory (which is mainly based on natural selection).
In conclusion, variation is any difference in organisms of the same species, whereas gradualism is a microevolutionary theory.
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Related Questions
HELP ASAP PLS
Which of the following factors most accurately distinguishes reproducibility from repeatability?
the entity performing the experiment
the location in which the experiment is performed
the statistical significance required of the experiment
the sample size of the experiment
Answers
The factor that most accurately distinguishes reproducibility from repeatability is the entity performing the experiment (Option A).
What is reproducibility ?Reproducibility is a feature that indicates if an experiment can be imitated in all its variables.
Moreover, repeatability refers to the intrinsic characteristics of the person who takes measurements during experimentation.
In conclusion, the factor that most accurately distinguishes reproducibility from repeatability is the entity performing the experiment.
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Draw the organic product in each of the reactions. Include formal charges, if applicable. Omit any inorganic byproducts or ions
Answers
The organic product in each of the reactions is sodium azide.
What is the chemical reaction?One or greater materials that react collectively to shape a product is known as a chemical reaction. Most chemical reactions take vicinity with the assistance of reagents. Reagents are materials that might be used to convert one shape of a substance to another.
The reactions go through substitution and discount reactions to attain the very last natural product. Sodium azide (NaN) and sodium cyanide (NaCN) are proper nucleophiles. When it reacts with an alkyl bromide, it undergoes a substitution reaction.
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HELPPPPPP!!! SCIENCEEE
Answers
Answer:
Bee pollinating a flower
Explanation:
Compare the use of RFLP to PCR in the study of DNA. What is one difference between these two methods?
A. RFLP is one of the newest methods used; PCR is one of the oldest.
B. RFLP is considered by scientists to be more useful than PCR.
C. RFLP is better to use with samples that have mold on them than PCR.
D. RFLP requires larger samples of DNA than PCR requires.
Answers
The one difference between RFLP and PCR is that RFLP requires larger samples of DNA than PCR requires.
What is RFLP and PCR?Restriction fragment length polymorphisms, or RFLPs, are differences among individuals in the lengths of DNA fragments cut by enzymes.
Polymerase chain reaction, or PCR is a technique in molecular biology for creating multiple copies of DNA from a sample.
These two techniques are used in the study of DNA, however, one difference between RFLP and PCR is that RFLP requires larger samples of DNA than PCR requires.
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erosion and deposition act to make the landscape smoother. If 4.5 billion years of erosion and deposition have occured, why isn't the Earth's surface more level?
Answers
Answer: Because, if there was erosion, the earth could not get in touch with inner land, so erosion can happen on coastlines, rivers, canyons, or any thing that has a body of water.
Explanation:
Some organisms have genes that improve their ability to survive
Answers
Some organisms have genes that improve their ability to survive and reproduce. If the gene also help their offspring survive and reproduce, then frequency in gene in population get increase.
What is gene?A gene is the basic physical and functional unit of heredity. Genes are made up of DNA and each chromosome contains many genes.
Throughout the individual lives, their genomes interact with their environments to cause variations in traits which help an organism to adapt better to the environment. These changes which help the organism's survival are selected and passed on to next generation. The genes help in increasing the fitness of the organism and thus the gene frequency changes. . The frequency of these gene increases as they are selected favourably.
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[BWS.03]Scientific laws are
O non observable phenomenon
O not applicable in all situations
O descriptions of specific relationships
O explanations offered of specific relationships
Answers
Answer:
scientific laws are descriptions of specific relationships under given conditions in the natural world
A variation that results in increased fitness is more likely to be passed on?
A) because those individuals will migrate to new populations.
B) because the individual will reproduce.
C) because those individuals are more likely to survive long enough to pass on their variations.
Answers
A variation that results in increased fitness is more likely to be passed on because the individual will reproduce. thus option B is correct.
What is variations?Genetic diversity is endlessly possible as a result of sexual reproduction. In other words, sexual reproduction produces genetically distinct offspring. They are different from one another as well as from their parents.
Variation will be passed on through reproduction. reproduction results in genetic variation which increase the chance of survival of new organisms.
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Answer: Its C
Explanation:
Because those individuals are more likely to survive long enough to pass on their variations.
The carrying capacity is the maximum number of individual organisms that ____.
Answers
The carrying capacity is the maximum number of individual organisms that a specific environment can support.
An environment can only support a limited number of people.Carrying capacity refers to the maximum population size that an ecosystem can support without depleting the natural resources available at a time. Carrying capacity is determined by limiting variables like non-living(abiotic) factors and living(biotic) factors.The number of creatures that may live in an environment is determined by the availability of abiotic (eg. water, oxygen, and natural habitat) and biotic (eg. food, decomposers like fungi) elements. Generally in an ecosystem, a species' population will rise until it achieves its carrying capacity. The population size then stays fairly constant to check over the sustainable development.Sustainable development is defined as development that meets current needs without impacting future generations' ability to meet their requirements.Resources may be fully exhausted if the population exceeds the carrying capacity for an extended length of time. Natural disasters(flood, drought, volcanic eruption etc.) and Anthropogenic activities(human interventions) also have the potential to reduce or raise carrying capacity.To learn more about the carrying capacity, refer:-
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Which of these is a process during which the hydrosphere interacts with the exosphere? (4 points)
Absorption of rainwater by soil
Absorption of heat in lakes and oceans
Condensation of water vapor into water
Solidification of water into ice
Answers
The process during which hydrosphere interacts with the exosphere is during the condensation of water vapor into water.
Hydrosphere and Exospherehydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air while exosphere is the outermost layer of Earth's atmosphere which is the upper limit of the atmosphere and extends from the exobase, which is located at the top of the thermosphere.
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Genetic engineering is also known as
Answers
Answer:
Genetic Modification
The two systems that work together to cause this reaction are the endocrine system that secretes the hormone and the
Answers
Two control systems of the body
Endocrine and Nervous
Endocrine and nervous system similarities
-Work together to maintain homeostasis
-Release ligands (chemical messengers) that bind to cellular receptors on particular target cells
Endocrine and nervous system differences
Endocrine system: -Transmits hormones through blood
-Targets any cell in the body with the correct receptor
-Very widespread
-Exhibits longer reaction times and has longer-lasting effects
Endocrine System
-Composed of ducts and glands that synthesize and secrete hormones
-Hormones are released into the blood and transported throughout the body
Endocrine system regulation growth and development
-Changes measured from birth to puberty
-Hormones help regulate embryonic cell division and differentiation
-Hormones regulate metabolism
How does the endocrine system maintain homeostasis or blood composition and volume
-Hypothalamus
-Hormones regulate blood solute concentrations (ex glucose ions)
-Hormones regulate blood volume, cellular concentration, and platelet numbers
The endocrine system controlling digestive processes
-Trigger digestion when food is in the stomach
-Hormones influence secretory processes and movement of materials in the digestive tract
Endocrine System controlling Reproductive Activities
-Make sure sperm and egg make it to each other
-Hormones affect the development and function of the reproductive system and the expression of sexual behavior
Endocrine Glands
Contain epithelial tissue that makes and releases hormones within a connective tissue framework
Endocrine Organs
-Glands with solely endocrine functions
-Ex: Pituitary, pineal, thyroid, parathyroid, and adrenal
Endocrine Cells
-Found in clusters in organs with another function
-Examples in Hypothalamus, Thymus, Heart, Stomach, Liver, Pancreas, Small Intestine, Adipose Connective Tissue
-Pancreases is not an endocrine gland, but it does release hormones
Polar bears are adapted to stay warm by growing thick fur. These organisms most likely live in a
Answers
Answer:
they live in a polar region.
Explanation:
it is very cold and
in the winter temperatures can drop below to about −58 degrees F
in the summer temperatures can be about 32 degrees F
and the polar bears have thick coat of fur which under the fur a a thick layer of fat Fur even grows on the bottom of their feet which helps that to grip on ice.
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Mueller-Hinton agar plates are poured to a uniform thickness of 4mm. Zone size interpretive criteria are based on Mueller-Hinton plates of this thickness. If a plate had been poured that was 7 mm thick, how would this affect the size of the zones of inhibitio
Answers
If a 7mm thick plate had been poured, this would affect the size of the inhibition zones, because the inhibition area would be smaller as a greater thickness would require more drugs in the same area.
What is Diffusion Disk?It is one of the simplest, most reliable and most used susceptibility methods in microbiology laboratories. Its basic principle is the diffusion of the antimicrobial on the surface of the agar, from a disk impregnated with the same antimicrobial.
With this information, we can conclude that if a 7mm thick plate had been poured, this would affect the size of the inhibition zones, because the inhibition area would be smaller as a greater thickness would require more drugs in the same area.
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An insect with coloration to avoid being detected by a predator would be an example of.
Answers
An insect with coloration to prevent from being detected by a predator would be an example of Camouflage.
What is the importance of Camouflage?Camouflage, commonly characterized as cryptic coloring, is a defensive tactic used by organisms to obscure their appearance, generally in order to blend in with their environment.
Camouflage is utilized by organisms to hide their location, identity, and movement. This enables prey to evade predators while also allowing predators to sneak up on victims.
An insect with coloration to avoid being detected by a predator would be an example of Camouflage.
Thus, the correct answer is Camouflage.
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The extraction of DNA is a common procedure in biotechnology research laboratories. Research the methods of extracting DNA in biotechnology facilities. Describe how the extraction methods used in this lesson compare to those of research laboratories.
Answers
The DNA extraction employed in research laboratories are more advanced than those in the lesson since high quality DNA is required in research laboratories.
What are DNA extraction methods?DNA extraction methods are the methods employed in the extraction of DNA from living cells.
Some DNA extraction methods include:
Phenol-chloroform isoamyl alcohol,Proteinase K,CTAB method,Spin column-based methods, andMagnetic bead-based techniqueThe different DNA extraction methods employed depends on the type of sample and the purity and quality of DNA required.
Therefore, the DNA extraction employed in research laboratories are more advanced than those in the lesson since high quality DNA is required in research laboratories.
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What part of the immune system is responsible for destroying or neutralizing pathogens.
Answers
Answer:
neutrophils are responsible for destroying or neutralizing pathogens
1: Nature of Science
After measuring the mass of a slice of a potato, a student used a hair dryer to
remove all moisture from the slice. Then the student measured the dry mass of
the same slice of potato. The student determined that potatoes are 40% water.
How could the student replicate this experiment?
7 of 11 QUESTIONS
Repeat the experiment using an oven instead of a hair dryer.
Have other students repeat the same procedure on other potatoes.
Have other students check the original calculations.
Repeat the experiment using apples instead of potatoes.
Answers
Replicability is the repetition of the experiment by other researchers who get the same results as the original experiment. B) Other students repeat the same procedure on other potatoes.
What does replication mean in an experiment?
Following the scientific method, an experiment needs to be replicable.
Replication refers to the need of repeating a research study, under different situations, different subjects, and with different researchers to determine the safety of the original findings and their possibility of generalizing them to other situations and participants.
Replicability is the possibility of carrying out the same experiment by other researchers. When repeating the experiment, results should be the same, or with a minimal variation. Results heterogeneity should be minimal.
Option B is correct. Have other students repeat the same procedure on other potatoes.
The exact same experiment will be repeated by different students -researchers- and their results should be the same as the ones of the first student -potatoes are 40% water-.
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How is the skin part of the integumentary system and the excretory system?
(Hint: Think of what happens when your body gets very hot.)
Answers
The skin shields the body from external conditions and aids in the regulation of the body's internal functions as part of the integumentary system.
What is integumentary system?The integumentary system is a collection of organs that make up the body's outermost covering. It is made up of the skin and its appendages, and it serves to protect and preserve the animal's body by functioning as a physical barrier between the exterior and interior environments.
The excretory system's skin, on the other hand, acts as a regulator for the amount of fluids and salt in our bodies.
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The photo shows the Matterhorn in the Swiss Alps.
What carved the sharp features of this mountain?
OA. Thermal expansion
OB. Iron oxide
C. Glacial ice
OD Plant roots
Answers
The sharp features of this mountain was caused by glacial ice and is denoted as option C.
What is a Mountain?
This is an elevated landform on the earth surface with a characteristic steep slopes present in the area.
Swiss alps is located in cold temperate regions with features such as glacial ice which is responsible for the sharp parts of the mountain via erosion.
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Can hormones made in one part of the body work in another part of the body?
Answers
Answer:
The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function,
reproduction, sleep, and mood, among other things.
Explanation:
what is a trait?
what is a allele?
Answers
Explanation:
an allele is an alternative form of a particular gene whereas a trait is the character that is determined by the allele.
Which claim is most likely to be based on pseudoscience A. The arrangement of the stars can bring you good luck B. The color of light from a star can tell you how old it is C. The planets in our solar system move around the sun D. The volume of gas will increase if you heat the gas
Answers
The arrangement of the stars can bring you good luck is most likely to be based on pseudoscience.
What is Pseudoscience?These are statements which seem factual but has no relationship with scientific methods.
Option A was chosen because there is no scientific proof that stars bring luck gto individuals.
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4. The cells of all organisms undergo similar processes to maintain homeostasis. What must ALL cells do in order to maintain homeostasis
Answers
ALL cells do in order to maintain homeostasis by allows the organism in its combat to keep homeostasis.
Whst is Homeostasis ?Homeostasis is generally maintained withinside the human frame with the aid of using an incredibly complicated balancing act. Regardless of the variable being saved inside its regular range, preserving homeostasis calls for as a minimum 4 interacting components: stimulus, sensor, manage center, and effector.
Homeostasis relies upon on preserving accurate fluid stages in the cell and on changing useable materials, along with oxygen, for waste products, along with carbon dioxide.
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How do land animals remove gas liquid and solid waste materials?
Answers
Answer:
The corect phase sequence shown
Gas, Liguid, Solid
Lqud, Gas, Solid
Sold, Liguid, Gas
Gas, Solid, Liquid
above i
Can you identify the characteristics of plants that typically grow in early and late stages of secondary succession in an abandoned farm field
Answers
Some characteristics of plants that typically grow in the early and late stages of secondary succession are high respiration and photosynthesis.
Early and late stages of secondary succession plants?Early succession plants are plants that exist or plants that sprout before any activity on farmland, they usually have a high rate of resource intake.
Typical examples are the weeds and grasses
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Please help me - fill in the blank
a) Blood that leaves the air sacs is rich in the gas ________________. b) When breathing out, the breathe is rich in _______________ _______________. c) If you trace the path of air moving through the respiratory system ,it would enter through the mouth and ________________. It continues through the _________________, into the __________________, through the _______________ tubes and finally reach the ___________ ______________.
Answers
In this question, we will understand the air path from entering the nasal passages to reaching the alveoli, where gas exchange takes place.
What is the air's path to the lungs?The air penetrates through the nasal passages, passes through the pharynx, larynx and trachea, bronchi, reaching the lungs where it travels through the bronchioles until reaching the alveoli, where gas exchange takes place. The difference between inspired and expired air is in the concentration of oxygen and carbon dioxide.
a) Blood leaving the air sacs is rich in oxygen gas.
b) When exhaling, the breath is rich in carbon dioxide.
c) If you trace the path of air moving through the respiratory system, it would enter through the mouth and nose. It continues through the pharynx, into the larynx, through the tubes and into the trachea and finally reaches the lungs.
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People with albinism have a defect in tyrosinase, an oxidase that helps to control skin pigment production. In what epidermal layer is tyrosinase active
Answers
Stratum basale is the epidermal layer in which the enzyme tyrosinase is active.
What is Albinism?This is an inherited disorder which is characterized by insufficient melanin production in the body.
The enzyme known as tyrosinase facilitates melanin production in the epidermal layer known as Stratum basale.
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How is observation used by science
Answers
Answer:
in science Observation is essential in science. Scientists use observation to
collect and record data, which enables them to construct and
then test hypotheses and theories . Scientists observe in many
ways – with their own senses or with tools such as microscopes,
scanners or transmitters to extend their vision or hearing
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A purple flower with a genotype PP is crossed with a white flower that has a genotype of pp. What would
the phenotype(s) of the offspring be?
Answers
Answer:
It Should Be D
Explanation:
Because if you put it in a diagram like in the picture dulow you will see all of the have 1 big P and one small p
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