Biology 1620

Which of the following nucleic acids make up viral genomes?

DNA or RNA

How would you distinguish a prokaryote from a eukaryote?

Eukaryotes have membrane-bound organelles and prokaryotes do not

Which statement is correct with reguard to the comparison of secondary endosymbiosis to primary endosymbiosis? 

In secondary endosymbiosis, an entire free-living alga is ingested into a heterotrophic eukaryote.

The life cycle of the malarial parasite, Plasmodium, is a(n) ___________ in the mosquito, and a(n) ___________ in humans

Ectoparasite; endoparasite

In plants, which of the following are produced by meiosis?

Haploid spores

The largest living organism on Earth is a

Basidiomycete fungus

You are eating in a French restaurant, and you read that snails are on the menu. Being a knowledgeable biologist, you inform the other members at the table that this restaurant is serving

gastropods

The Utah state insect, Apis mellifera (honey bee) belongs to what insect order?

Hymenoptera

Why are above ground prop roots common in tropical tree species?

Shallow soils means trees need additional support above ground

A tree growing in which of the following places would be most likely to have clear annual rings?

Utah

The Three Sisters planting method involves planting corn, beans, and squash in close association. Which of the following is NOT a benefit of this method?

All of the above

In the Cohesion-tension model, why is cohesion important?

It allows water to be pulled up the xylem in an unbroken “chain”

Several tomato plants are growing in a small garden plot. If soil water potential were to drop significantly on a hot summer afternoon, which of the following would most likely occur?

Stomatal openings would decrease

A flower that is red, tube-shaped, produces a lot of nectar, and has no scent is likely trying to attract what pollinator?

Birds

Arrange the following stages in the life cycle of an angiosperm in a correct sequence.

i, iii, ii, iv

An inoperable tumor has been discovered in a patient's brain. While the tumor is small now, it potentially may become malignant and grow. As the patient's doctor, you tell her to keep a diary of how she is feeling and to call you if she notices any trends. One day she calls you to tell you that after taking hot showers, it takes hours for her to cool off. What region of the brain may be affected by the tumor?

Hypothalamus

When a foraging bee returns to the hive, it will perform a dance that communicates to other bees where they can find the food source she just visited. What type of communication is this?

Tactile

A population of deer living in a forest has to find food and avoid being killed by a predator. The best grass for foraging is in small clearings throughout the forest. Predators primarily attack deer on the edges of the forest around the clearings, but not in clearings or in deep forest. Where does optimal foraging theory predict the deer will forage?

In clearings

The tilt of the Earth's axis relative to its plane of orbit is 23.5 degrees. If the angle of tilt increased to 33 1/2 degrees, which of the following events might you predict to occur

Summers in the United States would become warmer

Consider the food chain grass → grasshopper → mouse → snake . How much of the chemical energy fixed by photosynthesis of the grass (100%) is available to the snake?

0.1%

Although extinction is a natural process, current extinctions are of concern to environmentalists because

The rate of extinction is higher than former extinction rates

An organism that is found naturally in Utah and in Nevada would be called a(n) _____ species in Utah

Native

An organism that is found only in Utah would be called a ——- species in Utah

Endemic

A person who has had his gallbladder removed might have difficulty digesting which of the following components of his diet?

lipids

Which of the following is the correct sequence of blood flow in birds and mammals?

vena cava → right atrium → right ventricle → pulmonary artery

The letter ____ represents the right atrium, and the aorta is represented by ____. 

E; A

Which organism has an open circulatory system?

butterfly

If gastrulation was blocked by an environmental toxin, then

embryonic germ layer would not form

Hermaphroditism is a type of

sexual reproduction pattern only

In embryonic development, _____ of the zygote results in a(n) ______, which then undergoes _____ to produce a(n) _____.

cleavage; blastula; gastrulation; gastrula

What molecules travel across the synaptic cleft, allowing an action potential to continue from one neuron to the next? 

neurotransmitters

What happens when a resting neuron's membrane depolarizes?

The neuron's membrane voltage becomes more positive.

The operation of the sodium-potassium "pump" moves sodium ions ________ the cell and potassium ions ________ the cell.

out of; into