Answer:An inherited trait is one that is genetically determined. Inherited traits are passed from parent to offspring according to the rules of Mendelian genetics. Most traits are not strictly determined by genes, but rather are influenced by both genes and environment.
Explanation:
Nancy visits a local reservoir where she feeds ducks and other birds. Every time she feeds them she notices that they fight for the best pieces and some do not get any. All living things struggle to get the necessary amount of food, water, and shelter. What is the term for this struggle? * A. overproduction B. natural selection C. variation D. Competition
Answer:
D. Competition
Explanation:
Hope u guys have great day. ✌❤
Competition is defined as a biological interaction between or among the same or different organisms where organisms fight for resources. Competition explains this struggle. So, the correct option is D.
What is Competition?Competition is defined as an interaction between organisms or species in which both require a resource in limited supply that reduces the fitness of both organisms because the presence of one of the organisms will always limit the resource available to the other that reduces the quantity.
Competition is defined as a biological interaction between or among the same or different organisms where organisms fight for resources. Competition explains this struggle. Some example of competition is trees in the forest grow tall to compete for sunlight.
So, the correct option is D.
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Which statement describes a law based on a tested hypothesis explains how the process occurs describes something about the natural world subject to change as new evidence is discovered
Answer:
based on a tested hypothesis
Explanation:
Laws are generally based on tested hypotheses.
Theories are first derived from repeatedly tested and proven hypotheses. Scientific laws are derived from theories that have been proven to be true over a wide range of phenomenon. Hence, laws are overwhelmingly proven facts that cannot be changed.
Scientific laws are internally consistent, compatible with evidence, and are testable against a wide range of phenomenon. However, they can be reviewed as more evidences emerge that have not been known before.
Multiple choice!!!
Long term environmental change to an area is likely to create selective pressure that will
A. mutate the genetic makeup of organisms
B. influence adaptations of populations over time.
C. cause a decrease in reproductive rates.
B. allow organisms to select the best adaptations.
In camellia plants, flower color is controlled by a single gene with codominant alleles. A camellia plants with red flowers (RR) is crossed with a camellia plant with white flowers (WW). What are the expected phenotypes of the offspring of this cross?
A.
Half will have red flowers and half will have white flowers.
B.
All will have both red and white flowers.
C.
All will have pink flowers.
D.
All will have red flowers.
Adaptation is a change in a species over many generations. What is the cause of this change?
A.
The environment changes over time.
B.
Species pick traits they like.
C.
Over time, species become more like their ancestors.
Answer: is C
Explanation:
Answer: The correct answer is A. The environment changes over time.
Explanation: Adaptations allow species to be able to survive in changing locations, like Darwin observing changes in bird beaks based on their available food sources.
Why were Wegener's ideas about continental drift initially rejected
Answer:
The main reason that Wegener's hypothesis was not accepted was that he suggested no mechanism for moving the continents.
Explanation:
It wasn't until 1928 that a Scottish Geologist, Arthur Holmes, came up with an explanation for why continents move. He believed that heat traps in the Earth caused convection currents. There were areas where fluids trapped beneath Earth's crust heat up, rise, spread laterally, then cool and drop back down. This hypothesis didn't have a wide acceptance either but was revived in the 1940s and 1950s when scientists started to learn more about the seafloor and the magnetic properties of oceanic crust.
Hope this helps!
Brain-List?
“What are 3 scientific words that relate to the cell cycle?”
( question I have on an assignment )
Answer:
the cycle of growth and asexual reproduction of a cell, consisting of interphase followed in actively dividing cells by prophase, metaphase, anaphase, and telophase
Explanation:
hope this helps
Even though jellies can swim, why are they still classified as plankton?
Answer:
All plant and animal organisms that float or move to a limited extent in water, carried by currents and waves are called plankton.
Explanation:
Jellyfish are on the border of plankton and nekton. They are made of gelatinous tissue in which water makes up 98% of the body's composition. Simple anatomy, they have a single-opening digestive tract and a reticular nervous system.
The San Marcos salamander, Eurycea nana, is a light reddish-brown translucent salamander about 2-5 cm in length. E. Nanais foundonly inSpring Lake and a portion of the San Marcos River.
Complete question:
The San Marcos salamander, Eurycea nana, is a light reddish-brown
translucent salamander about 2-5 cm in length. E. nana is found only in
Spring Lake and a portion of the San Marcos River.
Which human activity would most likely decrease the ability of the
salamanders to survive?
The addition of a new food source into the river that limits competition for
resources
Tourism that helps fund the educational programs related to river ecosystem
conservation
Public transportation that reduces the number of automobiles that contribute to
pollution runoff into the river
Increasing water consumption that decreases the flow of clean water from the
springs that feed the river
Answer:
Increasing water consumption that decreases the flow of clean water from the springs that feed the river
Explanation:
In this question we are required to state the human activity that may likely cause the reduction in the survival rate of the salamander.
the first three options in the question are not the answer to this question. this is because options 1,2,3 would have positive impacts on the Salamander. these positive impacts would increase the ability of the salamander to survive and not decrease it as the question says.
the correct answer is the last option. that is the 4th option. because it has to do with decreasing the amount of water that flows in to the Salamanders habitat by human activities. if humans increase water consumption, then the flow of clean water would reduce. This would then have a negative effect on the Salamander.
Is sharks and crocodiles closely related
Answer:
More recent phylogenetic analyses, based on mitochondrial DNA, have suggested that the crocodile shark is closely related to either the megamouth shark or the sand sharks (Odontaspididae).
Answer:
yes??
Explanation:
look at the other answer
HELP PLS
Some traits have multiple alleles (more than 2). What are the phenotypes for each of the four different alleles in the example provided?
Answer:
Although an individual gene may code for a specific physical trait, that gene can exist in different forms, or alleles. One allele for every gene in an organism is inherited from each of that organism's parents.
Here are some of the tRNA molecules in Lucy's white blood cells. Let's see if tRNA #1 is carrying the correct amino acid for its anticodon. Using the RNA Pairing Rules, find the correct codon for this tRNA's anticodon. RNA Pairing Rules A ↔ U G ↔ C Anticodon CCA Codon Type Here. Amino Acid
Answer:GGU
Explanation:
GGU. I just completed it on gizmos
The tRNA molecules in Lucy's white blood cells. RNA Pairing Rules A ↔ U G ↔ C Anticodon CCA Codon GGU.
What are anticodons?Once the mRNA codon has been translated by the ribosome, transfer RNA, also known as tRNA, is in charge of directing the appropriate amino acid into protein synthesis. Because of this, each mRNA codon needs a corresponding tRNA anticodon.
Each nitrogenous base in RNA must mate with a complementary base according to the following rules:
Adenine is complementary with uracil A=U
Cytosine is complementary with Guanine C=G
In this case, it can be seen that:
For the anti-codon: CCACodon: GGUAminoacid: GlyTherefore, for the tRNA anticodon CCA the corresponding codon is GGU, which codes for the amino acid Glycine (Gly).
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What does RNA do?
Is it just me or is every telling me to just die today.... like many of my friends said i should just kiII myself, that it would be better for everyone because no one would miss me... or is that juts me?
Answer:
The RNA carries out these instructions; it copies and transfers the genetic code from the DNA to ensure the relevant proteins are made. So just think of it as “DNA makes RNA make proteins”. Whereas DNA stands for deoxyribonucleic acid, RNA stands for ribonucleic acid.
Explanation:
Nooooo! Please, don't feel that way. I'm sorry you have to go through something like that. If you want someone to talk to everyday and tell me about your day then you can always talk to me or add me! Just know that I'm always here to love you, and support and care for you!
ILL GIVE BRAINLY PLS IM BEING TIMED
How are mountains formed?
by plateaus caving in
by land masses being eroded
by Earth’s crust being uplifted
by rain carving out an area of land
Answer:
Earth’s crust is pushed up in big folds or forced up or down in blocks. So your answer is "By earth's crust being uplifted." Please mark as brainliest, hope this helps!
HELPPP!!! What would the mass of an artificial cell containing 20mL of a 25% sugar solution be after it was placed in a beaker containing a 30% sugar solution for 30 minutes? Remember to include units in your answer.
Answer: The sugar will move from the 50 % concentration to the 0 % concentration.
Explanation:
Dialysis is an analytical technique which uses a semipermeable membrane in order to remove the impurities from the body.
This technique is used when the kidney failure inside the body takes place. The kidney inside the body perform function of filtration, when kidney failure takes place then the dialysis is used.
In this case the tubing bag containing 0% sugar is put into a sugar solution having 50% solution.
After sometime the sugar will move from 50 % to 0% bag because of the phenomenon known as osmosis.
Compared with mitosis, the process of meiosis results in daughter cells that are-
A. haploid cells with the same number of chromosomes as the parent cells
B. haploid cells with a smaller number of chromosomes than the parent cells
C. diploid cells with a smaller number of chromosomes than the parent cells
D. diploid cells with the same number of chromosomes as the parent cells
Answer:
Explanation:
eAnswer: Haploid cells with a smaller number of chromosomes than the parent cell
Explanation: meiosis results in four daughter cells which are haploids. Haploids have half the number of chromosomes of the diploid parent cell.
Nerve labeling help meee plsss
Answer:
(1) Synaptic Vesicle
(2) Vesicle Releasing Neurotransmitter
(3) Axon Membrane
(4) neurotransmitter
(5) Synaptic Cleft
(6) Postsynaptic Neurotransmitter Receptors
Explanation:
Which evolutionary mechanism increases inheritable variations
Recombination of genes
Bottleneck ig of genes
Gene flow
Genetic drift
Answer:
Recombination Of Genes
Explanation:
Recombination of the gene's evolutionary mechanism increases inheritable variations, hence option A is correct.
What are genetic variations in a population?Gene flow, recombination, and mutation are mechanisms that enhance genetic variety. There are more mechanisms that work to promote genetic diversity, but fewer that work to reduce genetic diversity.
Demographic bottlenecks tend to decrease genetic diversity by intensifying genetic drift, but because genetic drift is random and has local impacts owing to recombination, mutation, and selection, the overall impact may vary along the genome.
Because it introduces new variety into the population, the mutation is the only mechanism of evolution mentioned that increases the amount of genetic variation. Genetic drift is the haphazard loss of genetic variation over time.
Therefore, option A is correct.
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Protozoa are usually found in _____.
the soil
the air
water
plants
Answer:
protozoa is usually found in water
Should we build more nuclear plants why or why not?
Answer:
I think not bc its bad for the environment.
Pleaseeeeeeeeee help and actualy answer
Answer:
Yes
Explanation:
The reason is because lets say both parents traits are fully dominate as in BB and BB, there is no way they can be recessive, same thing if mom is BB and dad is bb, but if mom is Bb and dad is Bb then their is a 25% chance of having a recessive trait.
what 2 organisms are most closely related to eachother.....i need to know ASAP
Answer:
Family snapshot - chimps and humans are very closely related. Similarities are often easy to see when one looks at two organisms that evolved from a common ancestor, and until recently, looking at physical features and behavior was the only way to determine how closely related two organisms are.
Crossing over occurs during meiosis and leads to changes in the chromosomes. What type of chromosomes does crossing over produce?
1. Chromosomes containing DNA from two different parental chromosomes
2. Chromosomes identical in genetic makeup to the parental chromosomes
3. Chromosomes containing more genes with non recombinant chromosomes
4. Chromosomes carrying genes from one parent
Answer:
1.
Explanation:
because the DNA is being mixed up while crossing over
Crossing over occurs during meiosis and leads to chromosomes containing DNA from two different parental chromosomes, hence option 1 is correct.
What is meiosis?New allelic combinations are created in the daughter cells as a result of the exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis.
Homologous chromosomes couple along their lengths during meiosis, one from each parent. At locations known as chiasma, the chromosomes overlap.
The chromosomes split and reunite at each chiasma, exchanging part of their genes in the process. Genetic diversity comes from this recombination.
Therefore, the genetic complement in each daughter cell at the end of meiosis is best described as a haploid set of chromosomes resulting from chromosomal recombination between the parents.
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definition of biotechnology
Answer:
definition
Explanation:
the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, etc.
Which of the following parts of the plant facilitates photosynthesis?
vascular tissue
chloroplast
roots
stoma
Answer:
chloroplast
Explanation:
it's where chlorophyll is found and chlorophyll (the green colouring pigment) is needed for photosynthesis
i will give brainliest
What were the different opinions of the scientists working on the project? Check all that apply.
Saving American lives had to be the priority.
The bomb was needed to force a surrender.
The United States should first demonstrate the bomb’s power before using it.
An atomic weapon should never have been created.
The use of the bomb would have no impact in the future.
Answer:
A, B, and C are the correct answer
Explanation:
Got it right on Edge2021
Trust me and give me a brainliest please
Answer:
ABC
Explanation:
Are most human sex-linked traits, Y-linked
or X-linked?
Answer:
Most human sex-linked traits are X-linked and not Y-linked
Explanation:
Refracting telescopes can be much larger than reflecting telescopes.
Please select the best answer from the choices provided
T
F
Answer: false
Explanation:
False, "Reflecting telescopes use a concave mirror to gather light from distant objects while refracting telescopes use two convex lenses to gather light and form an image of a distant object. Also, reflecting telescopes can be made much larger than refracting telescopes."
If a bat, an alligator, and a bird evolved from a common ancestor, what most likely can be concluded
A. They are able to survive changes in their environments
B. They live in the same part of the world
C. They have similar anatomical structures
D. They are in the same biological classification
If a bat, an alligator, and a bird evolved from a common ancestor, most likely can be concluded that they have similar anatomical structures. Thus, option C is correct.
What are the different structures of animals?Structures of animals that have different appearances and functions but seem to have evolved from the same body part in a common ancestor. This can be found in Cat's leg and human arms.The structure do not need to look the same or perform the same functions.
The analogous structure evolve in different species living in two different geographic location with similar environmental conditions. Thus, the analogous structures have similar function and purpose but since they have not evolved from the same ancestor their structure vary a lot for example – wings in both birds and butterfly are meant for flight but their structure is entirely different.
The arrangement of bones is identical in all three organisms. This effectively means that all these organisms gradually evolved from a common ancestor.
Therefore, If a bat, an alligator, and a bird evolved from a common ancestor, most likely can be concluded that they have similar anatomical structures. Thus, option C is correct.
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You are comparing the density of sea water to the density of fresh water. (Remember,
density is mass divided by volume.) Describe how you could determine the density of
sea water, including the names of the equipment needed to make the required
measurements.
Answer:
To know and compare the difference between the density of the fresh water and salt water or sea water require a graduated cylinder, balance, and weighing machine. The graduated cylinders are the containers that have markings on them to measure the volume of the liquid.
First, fill the cylinder with 1000 ml of fresh water which is the measure of the volume. now weight the cylinder filled with the fresh water and then find the difference between filled and empty container divide the mass of the fresh water by its volume, the result is the density of fresh water.
Repeat the process with salt water or sea water. The answer would be sea water has more density than fresh water.