Question 1

Once uterine contractions have begun, the female body releases several hormones that act in a positive feedback loop. The purpose of this feedback loop is ________.

Accepted Answer

A)  to promote the development of a new follicle 
B)  to ensure continued contractions until labour is complete 
C)  inhibit the release of prostaglandins 
D)  decrease the number of oxytocin receptors in the uterus 
A)  to promote the development of a new follicle 
B)  to ensure continued contractions until labour is complete 
C)  inhibit the release of prostaglandins 
D)  decrease the number of oxytocin receptors in the uterus

Question 2

A pregnant woman comes into the hospital past her due date. The doctor decides it is time for the baby to be delivered. Before performing a caesarean section, the doctor wants to try to induce labour. Which of the following would she most likely inject?

Accepted Answer

A)  progesterone 
B)  luteinising hormone (LH) 
C)  follicle-stimulating hormone (FSH) 
D)  oxytocin 
A)  progesterone 
B)  luteinising hormone (LH) 
C)  follicle-stimulating hormone (FSH) 
D)  oxytocin

Question 3

Regeneration, the regrowth of lost body parts, normally follows ________.

Accepted Answer

A)  all types of asexual reproduction 
B)  fission 
C)  fragmentation 
D)  parthenogenesis 
A)  all types of asexual reproduction 
B)  fission 
C)  fragmentation 
D)  parthenogenesis

Question 4

Sexual reproduction ________.

Accepted Answer

A)  results in over half of the offspring being female 
B)  produces offspring of greater genetic variety compared to offspring resulting from asexual reproduction 
C)  is completed more rapidly than asexual reproduction 
D)  is better suited to environments with relatively constant conditions 
A)  results in over half of the offspring being female 
B)  produces offspring of greater genetic variety compared to offspring resulting from asexual reproduction 
C)  is completed more rapidly than asexual reproduction 
D)  is better suited to environments with relatively constant conditions

Question 5

During human gestation, rudiments of all organs develop

Accepted Answer

A)  in the first trimester. 
B)  in the second trimester. 
C)  in the third trimester. 
D)  during the blastocyst stage. 
A)  in the first trimester. 
B)  in the second trimester. 
C)  in the third trimester. 
D)  during the blastocyst stage.

Question 6

Which of the following are similar between spermatogenesis and oogenesis in vertebrate animals? Both oogenesis and spermatogenesis ________.
I. begin at the onset of sexual maturity
II. result in the production of four functional haploid cells from one diploid cell
III. lead to the production of gametes from germ cells
IV. are complete at the time of birth

Accepted Answer

A)  Both I and II 
B)  Both III and IV 
C)  Both II and III 
D)  Only III 
A)  Both I and II 
B)  Both III and IV 
C)  Both II and III 
D)  Only III

Question 7

Sexual reproduction ________.

Accepted Answer

A)  allows animals to conserve resources and reproduce only during optimal conditions 
B)  can produce diverse phenotypes that may enhance survival of a population in a changing environment 
C)  enables males and females to remain isolated from each other while rapidly colonising habitats 
D)  guarantees that both parents will provide care for each offspring 
A)  allows animals to conserve resources and reproduce only during optimal conditions 
B)  can produce diverse phenotypes that may enhance survival of a population in a changing environment 
C)  enables males and females to remain isolated from each other while rapidly colonising habitats 
D)  guarantees that both parents will provide care for each offspring

Question 8

In excreted urine, a reliable "marker" that a pregnancy has initiated is ________.

Accepted Answer

A)  progesterone 
B)  oestrogen 
C)  follicle-stimulating hormone 
D)  human chorionic gonadotropin (hCG) 
A)  progesterone 
B)  oestrogen 
C)  follicle-stimulating hormone 
D)  human chorionic gonadotropin (hCG)

Exam 46: Animal Reproduction

Once uterine contractions have begun, the female body releases several hormones that act in a positive feedback loop. The purpose of this feedback loop is ________.

A pregnant woman comes into the hospital past her due date. The doctor decides it is time for the baby to be delivered. Before performing a caesarean section, the doctor wants to try to induce labour. Which of the following would she most likely inject?

Regeneration, the regrowth of lost body parts, normally follows ________.

Sexual reproduction ________.

During human gestation, rudiments of all organs develop

Sexual reproduction ________.

In excreted urine, a reliable "marker" that a pregnancy has initiated is ________.

Evolution, the Themes of Biology, and Scientific Inquiry

The Chemical Context of Life

Water and Life

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Viruses

Dna Tools and Biotechnology

Genomes and Their Evolution

Descent With Modification: a Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonised Land

Plant Diversity Ii: the Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Vascular Plant Structure, Growth, and Development

Resource Acquisition and Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Development

Neurons, Synapses, and Signalling

Nervous Systems

Sensory and Motor Mechanisms

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