Question

6583 - 1 - Page 1 Name: 1) Which is a true statement about the process illustrated below? A) It is the beginning of embryonic development and occurs only in a freshwater environment B) It is the beginning of regeneration and occurs only within the female. C) It is the beginning of ovule formation and occurs on the stigma of flowers. D) It is the beginning of embryonic development and occurs within the female or in water. Normally, each cell of a specific organism contains 64 chromosomes. However, some cells in that organism may each contain only 32 chromosomes as a result of A) mitotic cell division C) crossing-over B) meiotic cell division D) regeneration Questions 3 through 6 refer to the following: 2) Diagram A Fertilized Amphibian (frog egg) Diagram B Developing Bird Embryo Which statement best describes where these eggs will continue to develop? A) Both eggs will develop on land. B) Egg A will develop on land and egg B will develop in water. C) Egg A will develop in water and egg B will develop on land. D) Both eggs will develop in water. If these eggs were each compared to the egg of placental mammal, the mammal's egg would be A) larger than A but smaller than B C) larger than either A or B B) about the same size as B D) much smaller than either A or B In diagram B, structure 1 encloses a fluid. The function of this fluid is to A) provide nourishment to the embryo B) provide the embryo with a liquid to drink C) protect the embryo from physical shock D) filter out the damaging radiation _5)

Answer 1

1) d) it is the beginning of embryonic development and occurs inside female or water

Embryo will be formed after fertilization of male , female gametes and it may happen inside female or in water

2. C) meiotic cell division

Meiotic cell division results in N number chromosomes from 2N nu ber of chromosomes and it occurs in sex cells

3. C) egg A will develope in water and egg B will develop in land

Amphibian or frog fertilize and lays itz egg on water where it lives and birds lay eggs on land .

4. D) much smaller than A or B

Amphibians and birds have larger size egg when compared to placental mammals