BIO II - TEST 1

Which is NOT one of the correct ways to denote genus and species of an organism?

Apalysia Brasiliana

1. Which of these conditions are always true of populations evolving due to natural selection? Condition 1: The population must vary in traits that are heritable. Condition 2: Some heritable traits must increase reproductive success. Condition 3: Individuals pass on most traits that they acquire during their lifetime.

Conditions 1 and 2

Cotton-topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you notice that males with longer hair get more opportunities to mate and father more offspring. To test the hypothesis that having longer hair is adaptive in these males, you should _____.

Determine hair length is heritable

The Diagram is an example of a eukaryotic cell

FALSE; prokaryotic

The endosymbiotic theory of eukaryotic cell formation theorizes that an anerobic eukaryotic cell enveloped an ancient aerobic eukaryotic cell.

False

If Darwin had been aware of genes and their typical mode of transmission to subsequent generations, with which statement would he most likely have been in agreement?

If natural selection can change gene frequency in a population over generations, given enough time and genetic diversity, then natural selection can cause sufficient genetic change to produce new species from old ones.

Which of the following is NOT one of the eukaryotic kingdoms?

Invertebrata

What must be true of any organ described as vestigial?

It must be homologous to some feature in an ancestor

Which of the following represents an idea that Darwin learned from the writings of Thomas Malthus?

Populations tend to increase at a faster rate than food supply normally allows

All animal cells are Eukaryotic cells

True

Which of the following scientists argued that variation among individuals allows evolution to occur?

Wallace

There is still some controversy among biologists about whether Neanderthals should be..

biological

1. Dogs (Canis lupus familiaris) and gray wolves (Canis lupus) can be interbred to produce viable...

biological and phylogenetic

Of the following anatomical structures, which is homologous to the bones in the wing of a bird?

bones in the flipper of a whale

1. Darwin and Wallace's theory of evolution by natural selection was revolutionary because it ____.

dismissed the idea that species are constant and emphasized the importance of variation and change in population

1. Macroevolution is _____

evolution above the species level

Which of the following must exist in a population before natural selection can act upon that population?

genetic variation among individuals

Darwin and Wallace were the first to propose

natural selection as the mechanism of evolution

1. About three million years ago, the Isthumus of Panama

the morphological species, biological species, and phylogenetic species concepts

The diagram is an example of a eukaryotic cell

true; has membrane bound organelles