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enot [183]
3 years ago
15

Scientific theories, such as the theory of evolution, must be

Biology
2 answers:
S_A_V [24]3 years ago
6 0
B) testable and observable
elena-14-01-66 [18.8K]3 years ago
5 0
B observable and testable
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explain why it is important to keep the levels of nucleotides relatively balanced in the context of dna and rna synthesis
juin [17]

Answer:

Read Below

Explanation:

Nucleotides are A & T and G&C you see in DNA and in RNA T is Replaced by U. The reason they must be balanced between G&C and T&A is because G has to bond with A in DNA and G with C so if there is more G than C that means there is mismatches between the DNA nucleotides same thing for A and T. In RNA you follow the same rule. If we have lets say 27% of our DNA as A we have to have 27% as T leaving 23% as C and 23% as G. If there was lets say 29% T while one 27% A then there was a error in DNA replication and could lead to errors in RNA synthesis if not corrected

4 0
3 years ago
What is a key part of Darwin's idea of natural selection
dimaraw [331]
The animals that cannot adapt to their changing enviroment will not be able to survive and reproduce.
6 0
3 years ago
Im not sure what the answer is please helpppp
Zanzabum
The answer is B because the humoral immune response is mediated by antibody
5 0
3 years ago
What is the fitness of an organism?
dlinn [17]

Answer:

Answer B.

Explanation:

Biological Fitness, also called darwinian fitness, means the ability to survive to reproductive age, find a mate, and produce offspring. basically, the more offspring an organism produces during its lifetime, the greater its biological fitness.

3 0
3 years ago
In the field, you observe a lion chase, kill, and eat a gazele. A vulture pecks away at the left over meat scraps. Beetles attac
Wittaler [7]

Answer:

the order would be:

Carnivorous animal -> scavenger animal ---> autonomous living organism ---> decomposing organisms.

Explanation:

The lion would be the carnivore, the bird that eats the waste of dead meat would be the scavenger, the vegetable the autonomous, since it does not require an external energy source to live but synthesizes its own energy and finally the decomposers fulfill the function to decompose chemical compounds to give energy to the earth, which would be useful for the growth of other living organisms. This is how the chain meets the cycle of life.

7 0
3 years ago
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