I think the correct answer from the choices listed above is option B. A modification of the leaves into the spine in a cactus plant can be seen The spines are modified leaves. It helps defend the plant and also reduce the surface area which helps limit loss of water.
Answer:
Elastic collisions are collisions in which both momentum and kinetic energy are conserved. The total system kinetic energy before the collision equals the total system kinetic energy after the collision. In the collision between the two cars, total system momentum is conserved.
Birds are an example of an animal that migrates, birds migrate south when it gets cold so they can be in warm weather.
Answer:
The expression of the mRNA decreases.
Explanation:
The RNAi binds to some proteins forming a silencing complex. This complex binds to the target mRNA (of which the RNAi is complementary) and cleaves it (cuts it). The cell will detect the generated fragments of mRNA , recognize they are aberrant and will thus degrade them.
All in all, this mechanism silences (reduces) the expression of the mRNA, because it will be degraded instead of translated into protein.
Answer:
The correct answer is A. intersex condition.
Explanation:
This condition where a baby grows with a low level of testosterone would cause the baby to have an intersex condition. This means that while the baby is chromosomally a male, he cannot develop sexual organs properly causing him to have female-like or completely female organs and characteristics.
