Cephalization refers to the concentration of nerve cells and sensory organs at the anterior (head) end of the body.
If animals don't adapt to it they can die.
Answer:
Meiosis is important for organisms that reproduce sexually because it is the cell division that serves to obtain gametes or sex cells.
Explanation:
Meiosis is a reductive cell division, involved in the gametogenesis process, where from a diploid cell haploid cells called gametes are obtained.
The gametes, also called sex cells, are responsible for containing the genetic information that each individual will transfer to their offspring.
In sexual reproduction, the importance of gametes is that the paternal and maternal gametes unite in a process called fertilization, to give rise to a diploid cell called a zygote.
Answer:B
Explanation:
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.
