Several dozen species of plants and animals cease to exist every day. This trend is referred to as
a. the demise of the ecosystem.
b. declining biodiversity.
c. ecological Armageddon.
d. ethnographic doomsday.
Question 2
A social-conflict theorist who takes a Marxist class-conflict position is likely to agree with which of the following statements?
a. The hierarchical organization of the United States gives control over our society to the greatest number of people.
b. Most of the harm done to the natural environment is directed at people living in overdeveloped nations.
c. Most of the planet's people live in poor societies and will never raise their living standards under the current capitalist world economy.
d. Corporate executives who order the release of pollutants or toxic waste are usually held personally accountable for their actions.
Oocyte maturation in certain species of frogs
Relationship between Hox gene number and body complexity in different types of animals.
Plants
An image comparing the brain sizes of different species.
Sexual Reproduction in Plants