List the 5 stages of animal development in order from earlie

List the 5 stages of animal development in order from earliest to latest. Match each term with its opposite: A. Mitosis B. Autotroph C. Gametophyte D. Meiosis What events that occur during Prophase I have a major impact on the survival of the species? Explain why these events are important. What is a notochord? Why is the development of a notochord important?

Solution

14. Animal development consists of the following stages.

a. Gametogenesis - Production of haploid sperms (male) and ova (female) gamets in respective bodies of animals.

b. Fertilization - Fusion of sperm and ovum after copulation leading to creation of diploid single-celled zygote.

c. Cleavage - Splitting of single-celled zygote into multi-celled undifferentiated clump called Morula.

d. Gastrulation - Development of undifferentiated Molrula into a cell mass with dermal layers called Gastrula.

e. Organogenesis - Differentiation of Gastrula into a complete and fully-functioning individual.

15. Match the opposite

Fertilization - Meiosis

Sporophyte - Gametophyte

Heterotroph - Autotroph

Apoptosis - Mitosis