They are really different then most kinds<span />
Answer:
3
Explanation:
even if you calculate is still going to be 3
Answer:
Amphibians
Explanation:
They had just shown up during the Carboniferous period and were still living in the water.
Answer:
B) There is an increase in the number of giraffes with long necks in areas of Africa where low-growing trees have died
Explanation:
The directional selection is one of the ways of the natural selection in which the natural selection selects or favours the most extreme trait of the species and the extreme trait show higher fitness than the normal or average trait.
In the given question, the case of Giraffe necks shows directional selection as the normal length of the neck is not favoured by the environment but the extreme trait that is long neck is favoured by the environment and the selection shifted to that level.
Thus, Option-B is the correct answer.
Answer:
Air temperature: Ice, tree rings
Ocean temperature: Chemical isotopes in foraminifera
Carbon dioxide levels: Ice
Kinds of plants: Fossilized pollen grains
Rainfall: Tree rings
Explanation:
These are the correct answers.
