The cuticle blocks water from evaporating from the leaves.
Answer: Geologic time is divided into units. Major changes in the earth's surface or climate and the extinction of species help to divide the time scale into smaller units.
Explanation: Rocks grouped within each unit contain a similar fossil record.
Answer:
B. False
Explanation:
Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. These cells are our sex cells – sperm in males, eggs in females.
Answer:
Option (C).
Explanation:
VEGF (Vascular endothelial growth factor) acts as a signalling molecule for the platelet derived growth factors. Paracrine signalling helps in the cell communication of the near by cells.
VEGF can acts as the paracrine signalling molecule. They have the ability to binds with receptor and can cause the formation of new blood vessels to their by neighbor cells also.
Thus, the correct answer is option (C).
