Reproductive isolation. Species refer to the group of organisms which share common morphological features and can interbreed and produce a viable offspring. Thus, the organisms of one species are reproductively isolated from the organisms of other species
I think the best answer is D. It is thought that advances such as agriculture, literacy, and urbanization have not been accompanied by additional increases in brain size because the physiological cost of a bigger brain exceeds its benefit. The brain requires a lot of nutrients to function. Having a bigger brain would cost a lot rather than benefiting from it.
Answer:
True
Explanation:
Every cell has got different sets of genes. Although they do have the same exact DNA. The set of genes expressed in a cell determines the set of proteins and functional RNAs it contains, giving it its unique properties.
A. arteries and veins.
Just as tubes within the stems and leaves of plants transport water, arteries and veins within animals transport blood with the required nutrients for our bodies.
