Zoology Answers

Is it possible for a graffian follicle and a corpus luteum to be developing simultenously in the ovary

Explain how one can distinguish between 18 -and 24-hours chick embryo

Briefly explain how structure such as blastula and Gastrula differs between the following organisms human,amphibia ,Branchiostoma and Avian

1. List all the structures that are involved in general hormonal signaling. Once you have all the structures listed, arrange them from small to large. Next, arrange them in order of events during hormonal signaling, from first to last.

How is the egg yolk distributed in the frog's egg?

Evolution is often portrayed as producing greater complexity and increased size. Can you think of an example where evolution resulted in reduced complexity or smaller size?

write an essay and explain the significance of i. Development of a coelom ii. Bilateral symmetry and cephalization iii. Segmentation in the evolution of animal kingdom

2 Explain how global conditions influenced the progression towards bipedal locomotion in early apes in Africa

Arthropods are considered the most successful animal species on earth. About 80% of

animal species on the planet are Arthropods. They exist in great numbers and in diverse

forms because they have successfully adapted to changing environmental conditions for a

longer period of time.

In your essay;

i. Discuss all the characteristics of Arthropods that have led to their successful survival

on earth.

ii. Explain how an increase in some Insect species populations could lead to the spread of

diseases.

iii. Explain how local Fijian Cicada benefits from undergoing a metamorphosis stage for

eight whole years.

4. Coral reefs are considered one

Explaine how each of the following words is related to the other : embryooy, embryogenesis and embryonation.