Answer: D, to create the soil
Explanation:
Primary succession occurs on basically empty, lifeless land with no soil. Pioneer species are the first plants to colonize the land after primary succession, which means they are very primitive and can survive without soil. Since there is no soil, their role is to create soil for more advanced organisms to survive in the area in the future.
C. Desert
A. The tilt of the Earth's axis as it circles the Sun.
... a Y chromosome from the father.
Answer:
A?
Explanation:
The first step of protein synthesis is transcription, and transcription occurs in the nucleus of the cell... so...
Answer:
(c) G1 cyclins will be expressed during the S phase
Explanation:
In those cases in which G cyclins are constitutively expressed, the G1 phase will be shortened
