Question 1

Cleavage on the surface of the yolk of the chicken egg is partial because cleavage furrows cannot cut through;this is called

Accepted Answer

A) meroblastic. 
B) holoblastic. 
C) isolecithal. 
D) indeterminant. 
A) meroblastic. 
B) holoblastic. 
C) isolecithal. 
D) indeterminant.

Question 2

Eggs with a moderate amount of yolk concentrated at the vegetal pole are called

Accepted Answer

A) mesolecithal. 
B) holoblastic. 
C) isolecithal. 
D) telolecithal. 
A) mesolecithal. 
B) holoblastic. 
C) isolecithal. 
D) telolecithal.

Question 3

What prevents a foreign species' sperm from fertilizing an egg?

Accepted Answer

A) Nothing prevents fertilization if chemical and other behavioral cues allow mating 
B) Egg recognition proteins on the acrosomal process bind to specific sperm receptors on the vitelline envelope 
C) The size and shape of sperm must fit the hole in the egg membrane 
D) The cortical reaction by the egg actively draws in the sperm 
A) Nothing prevents fertilization if chemical and other behavioral cues allow mating 
B) Egg recognition proteins on the acrosomal process bind to specific sperm receptors on the vitelline envelope 
C) The size and shape of sperm must fit the hole in the egg membrane 
D) The cortical reaction by the egg actively draws in the sperm

Question 4

Discuss the process of cytoplasmic specification and the role of differently pigmented cytoplasms.

Accepted Answer

Cytoplasmic specification is the process

Exam 8: Principles of Development

Cleavage on the surface of the yolk of the chicken egg is partial because cleavage furrows cannot cut through;this is called

Eggs with a moderate amount of yolk concentrated at the vegetal pole are called

What prevents a foreign species' sperm from fertilizing an egg?

Discuss the process of cytoplasmic specification and the role of differently pigmented cytoplasms.

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Architectual Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Cnidarians and Ctenophores

Acoelomorpha, Platyzoa, and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Hexapods

Chaetognaths, echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, Protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distribution

Animal Ecology

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