Question 1

The first cavity formed during sea urchin development is the

Accepted Answer

A) blastopore. 
B) mouth. 
C) blastocoel. 
D) anus. 
A) blastopore. 
B) mouth. 
C) blastocoel. 
D) anus.

Question 2

Which of the following correctly displays the sequence of developmental milestones?

Accepted Answer

A) blastula → gastrula → cleavage 
B) blastula → cleavage → gastrula 
C) cleavage → gastrula → blastula 
D) cleavage → blastula → gastrula 
E) gastrula → blastula → cleavage 
A) blastula → gastrula → cleavage 
B) blastula → cleavage → gastrula 
C) cleavage → gastrula → blastula 
D) cleavage → blastula → gastrula 
E) gastrula → blastula → cleavage

Question 3

Researchers have observed that production of caribou offspring in Greenland has declined by 75% since 1993 because of climate change.What could researchers do in response to climate change to improve caribou reproductive success in Greenland?

Accepted Answer

A) Cultivate additional plants that will sprout in timing when the caribou arrive. 
B) Build barns and stables with heaters to keep the mother caribou warm. 
C) Maintain the caribou in pens that artificially control the length of day and night. 
D) Ensure that no predators are in the area during the time that caribou mate. 
A) Cultivate additional plants that will sprout in timing when the caribou arrive. 
B) Build barns and stables with heaters to keep the mother caribou warm. 
C) Maintain the caribou in pens that artificially control the length of day and night. 
D) Ensure that no predators are in the area during the time that caribou mate.

Exam 36: Reproduction and Development

The first cavity formed during sea urchin development is the

Which of the following correctly displays the sequence of developmental milestones?

Researchers have observed that production of caribou offspring in Greenland has declined by 75% since 1993 because of climate change.What could researchers do in response to climate change to improve caribou reproductive success in Greenland?

Introduction: Evolution and the Foundations of Biology

The Chemical Context of Life

Carbon and the Molecular Diversity of Life

A Tour of the Cell

Membrane Transport and Cell Signaling

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

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

Development,stem Cells,and Cancer

Viruses

Genomes and Their Evolution

Descent With Modification

Phylogeny

The Evolution of Populations

The Origin of Species

Broad Patterns of Evolution

Early Life and the Diversification of Prokaryotes

The Origin and Diversification of Eukaryotes

The Colonization of Land by Plants and Fungi

The Rise of Animal Diversity

Plant Structure and Growth

Resource Acquisition,nutrition,and Transport in Vascular Plants

Reproduction and Domestication of Flowering Plants

Plant Responses to Internal and External Signals

Homeostasis and Endocrine Signaling

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Neurons,synapses,and Signaling

Nervous and Sensory Systems

Motor Mechanisms and Behavior

Population Ecology and the Distribution of Organisms

Ecological Communities

Ecosystems and Energy

Conservation Biology and Global Change

Filters