Chromosomes, which contain DNA, have several functions. All BUT ONE of these statements is a function of chromosomes. A) Chromosomes determine the traits of an organism. B) Chromosomes provide instructions to make proteins.
Anything that says further apart is incorrect. So B is incorrect.
A is correct as near as I can tell.
C is not correct. The particles. I think C is the right answer supplied with the wrong reason. Regretfully, you can't choose it.
Same answer as C for D. Right answer wrong reason.
Answer A.
It is believed that this happens because some signals that regulate development are the same between different species and because <span>they share ancient genes. </span>These ancient genes are expressed during a middle "phylotypic stage" of embryonic development for all species.
For example, human and animal embryos go through very similar stages of early development and share similar features such as tails and gill-like structures. The major difference appears to be how long it takes to reach each of these same stages.
Over time from weathering and erosion. The rock will break down and turn into a fine particle with will be turned into soil.
The correct answer is: [C]:
__________________________________________________
→ " grassland ecosystem " .
__________________________________________________
{Since the organisms you mention:
"zebra, lion, raccoon , grass, rat, Cricket crow" occur in the "grassland ecosystems" of Africa ; according to the following "food web" (diagram).
__________________________________________________
Hope this helps!
Best wishes to you!
__________________________________________________