1) farmers have been able to genetically engineer a wide variety of crops that possess an
enormous diversity of traits. if a farmer wanted to increase the ability of his crops to
access ground water that is several meters below ground which type of root system
would he want?
a. taproot
b. prop roots
c. fibrous roots
d. pneumatophores
e. aerial roots
2) most of darwin’s observations about changes in species over time and in different
environments took place in and near
a. north america.
b. africa.
c. south america.
d. asia.
e. greenland.
3) which of the following structures is an underground horizontal stem?
a. bulb
b. rhizome
c. corm
d. stolon
4) which features are found in organisms that have an incomplete digestive tract?
a. pharynx, digestive enzymes and diffusion of nutrients
b. crop, digestive enzymes and diffusion of nutrients
c. digestive enzymes, esophagusand diffusion of nutrients
d. gizzard, salivary amylase and a pharynx
5) if a public health official was trying to reduce the potential for human exposure to a
“red tide” which of the following actions would they take?
a. place a ban on eating fish that were exposed to the dinoflagellate alexandrium
catanella
b. decrease the amount of nutrients that are washed into the aquatic ecosystem
c. avoid eating shellfish that live in coastal areas that have a high influx of nutrients
d. all of the above would help reduce the potential for human exposure to a “red tide”.
6) what type of speciation requires a geographic barrier?
a. sympatric speciation
b. allopatric speciation
c. both sympatric and allopatric speciation require a geographic barrier
d. neither sympatric or allopatric speciation require a geographic barrier
7) a plant’s response to an external stimulus involves receptors. a receptor that responds
to light normally contains
a. a series of relay proteins.
b. a pigment component.
c. a transduction pathway.
d. an end product of a metabolic pathway.
8) which of the following gives rise to both lysosomes and vesicles?
a. rough endoplasmic reticulum
b. mitochondria
c. golgi apparatus
d. ribosomes
9) which would you find in the heart of a fish?
a. one atrium and one ventricle
b. two atria and one ventricle
c. one atrium and two ventricles
d. two atria and two ventricles
e. two atria and a partially divided ventricle
10) identify b’ as the _____
a. inner membrane
b. matrix
c. cristae
d. intermembrane space
e. outer membrane
incorrect
11) a forest found in a broad belt in northern eurasia and north america, with conifers
and swamps, is called the
a. tropical rain forest.
b. tundra.
c. taiga.
d. chaparral.
e. temperate deciduous forest.
12) sugars and amino acids are carried into the cell by means of
a. facilitated transport.
b. diffusion.
c. endocytosis.
d. exocytosis.