Answer:
Directional selection
Explanation:
Here, blue poppies which belonged to China were grown in drier climate of California. Plants who live in drier areas generally have thicker leaves to preserve water. Hence the blue poppies leaves also started to become thick and after several generations thick leaved plants had increased by 42%.
This phenomena would come under directional selection. In directional selection, one of the extreme phenotypes is preferred to adapt better to the environment. Here neither thin leaves were selected nor average leaves were selected, rather the selection preferred thick leaves which lies on other end of spectrum. Hence, this is an example of directional selection.
Stiffness in the neck can make it difficult for drivers to look behind when they are backing up.
Answer: due to a bacteria that has its own special property's which is Archaea
Explanation: because of the bacteria being able to live in such extreme temperature habitat its been given its own domain
Answer: streaming along as a mass of cytoplasm.
Explanation:
Plasmodial slime molds are single cells that are fuse together by 1000 nuclei that are formed by the fusion of several flagellate cells. They form fruiting bodies when there is stimulus. The fruiting bodies help to disperse individual cells when there is favorable condition. They move by ooze to obtain good.
The answer is B. Digestive and cardiovascular
