Answer:
I think its A
Explanation:
Because the reason why airplane have closed windows is because we can't breathe in carbon dioxide when we go up. Of course there is oxygen just not a lot as we go up. Why would there be helium in the air? We would sound weird when we skydive.
<span>Regions of DNA that read the same regardless of the direction are called Palindromes. The sequence of nucleotides is the same whether you start from the 3' end or the 5' end. Palindromes may occur due to chromosomal inversion or due to breakage.</span>
Answer:
The food chain that is described in the question is called Grazing food chain.
Explanation:
Grazing food chain is a type of food chain that contain producers at the lowest tropic level.The producers can manufacture their own food by photosynthesis process. Here grass act as producers.
The second topic level of grazing food chain contain primary consumers which consume producer. Here grasshopper eat grass,as a result grasshopper act as primary consumers or herbivores
The third tropic level of grazing food chain contain secondary consumers that feed on primary consumers. Here snake eats grasshopper,as a result snake act as secondary consumers or primary carnivores.
The highest tropic level of grazing food chain contain tertiary consumers or secondary carnivores.Hawk eats snake,as a result hawk act as Tertiary consumers or secondary carnivores.
Primary succession occurs in an area that has not been previously inhabited by a community. Places where primary succession occurs include newly exposed rock areas, sand dunes, and lava flows.
