PLEASE HELP WILL MARK BRAINLEST
Which phrase best completes the sentence?

According to the modern synthesis of evolution, .

species do not descend from common ancestors

only populations of identical individuals can evolve

genetics and mutation generate some of the variety that natural selection acts on

the processes seen on earth today are the same ones that took place long ago

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

Pls need ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.