Natural selection act directly upon <u>Alleles</u>
Explanation:
Genes, such as that of fur color, have many variants called alleles. Natural selection act on the alleles and chooses the best fit for an environment and eliminates the disadvantageous ones from the population over generations. Mutations are a rare occurrence that increases the number of allelic variants of a genes on which natural selection can act upon.
Answer: Texture
Explanation: the rate at which the rock had cooled when molten magma was cooling gives out a clear comparrison of the rocks which is the texture
Sponges generally require a solid support for attachment, they are often found in rocky marine areas or on the ocean floor. Sponges are critical components of the ecosystems of coral reefs, where they provide shelter for a variety of organisms including shrimp, crabs, and algae.
Answer:
According to Davson-Danielli model, the phospholipid bilayer is sandwiched between two globular protein layers. According to this model, non-polar portions of proteins separate the polar portions of phospholipids from water, it causes the bilayer to get dissolve.
This is the reason why membrane protein could not exist in such manner.
They are called dendrites. Dendrites receive information from another neuron's axon