For each question below, click on the circle next to the correct answer. When you are finished with the test, push the 'Score my test' button at the bottom of the page. Good luck!( You will be allowed an 8 1/2 by 11 inch note sheet; front and back....you can also use the note cards from past exams) The final is wed 6/11 at 2pm in DDH GJ102.

Question #1
The endosymbiotic theory states that ____9i_________; one piece of evidence supporting this theory is the fact that ____9ii_________.

A. (9i.) the first hereditary material was RNA ... –(9ii) mitochondria and chloroplasts have heredity based on RNA
B. (9i) mitochondria and chloroplasts originated as ingested prokaryotes ... (9ii) mitochondria and chloroplasts have their own DNA.
C. (9i) the genomes of complex animals came in part from the genomes of invading pathogens ... (9ii) the human genome contains the complete genomes of 120 viruses and 10 bacteria
D. (9i) over time, parasites evolve to resemble their hosts ... (9ii) the DNA of human parasites contains segments of human DNA.

Question #2
Which of the following was probably NOT present in large amounts in the atmosphere at the time life is thought to have originated?

A. Water (H2O).
B. Carbon monoxide (CO).
C. Carbon dioxide (CO2)
D. Oxygen (O2).

Question #3
Which of the following groups of algae are most closely related to higher plants?

A. Brown algae
B. Green algae
C. Diatoms
D. Bryophytes

Question #4
Of the following statements which one is not a correct statement about predators: In predator prey cycles, predators ___________________________________

A. reduce the number of individuals of competing species
B. are necessary for stability
C. drive prey populations to extinction
D. increase in response to the availability of prey and thus are limited by their food supply

Question #5
Which of the following is an adaptation that allowed reptiles to utilize dry terrestrial environments (previously unavailable to amphibians)?

A. Lungs
B. Hard shelled eggs
C. Vertebrate limbs
D. Synchronized breeding cycles

Question #6
Which of the following is not a density dependent population growth factor?

A. competition
B. availability of food
C. availability of mates
D. environment temperature

Question #7
16. There is a group of small fish living in a lake with a sandy bottom. Most of the fish are light brown, but about 10% are mottled. These fish are normally prey for large birds that live on the shore. A construction company dumps a load of gravel in the bottom of the lake, giving it a mottled appearance. Which of these statements presents the most accurate prediction?

A. The proportion of mottled fish will increase over time.
B. There is no way to guess the result.
C. The ratios will not change.
D. In two generations, all the fish will be mottled.

Question #8
17. According to the Hardy-Weinberg theorem, the frequencies of alleles in a population will remain constant if ______________ is the only process that affects the gene pool.

A. mutation
B. genetic drift
C. sexual reproduction
D. natural selection

Question #9
Blue poppies native to China are grown at a plant-breeding center in California, where those with the thickest leaves survive and reproduce best in the drier climate. This evolutionary adaptation of the poppies to their new environment is due to _____.

A. genetic drift
B. directional selection
C. stabilizing selection
D. diversifying selection

Question #10
The earliest cells were most likely__________.

A. eukaryotic
B. prokaryotic
C. neurotic
D. multicellular
E. animals

Question #11
Most bryophytes, such as mosses, differe from all other plants in that they _____________.

A. do not produce flowers
B. have cones but no seeds
C. produce spores
D. lack vascular tissue

Question #12
The diploid generation of the plant life cycle _________.

A. produces spores
B. is called the gametophyte
C. is always larger and more conspicuous than the haploid stage
D. always produces both egg and sperm

Question #13
Which of the following is NOT a characteristic of all animals? (this question will be covered in monday's lecture)

A. They are multicellular
B. They have true tissues, organs, and organ systems
C. They are eukaryotes
D. The ingest food

Question #14
In evolutionary terms, an organism's Darwinian fitness is measured by its _________________.

A. health
B. contribution to the gene pool of the next generation
C. mutation rate
D. genetic variability
E. stability in the face of environmental change

Question #15
On a wildlife refuge the major predator of a protected sparrow species are coyotes. If wildlife managers want to maintain the population of sparrows what would be the best option for the population of coyotes?

A. remove the coyotes from the refuge.
B. decrease the reproductive rate of the coyotes.
C. provide the sparrows with all the food required to reproduce exponentially.
D. use hormone treated feed to increase the clutch size of the sparrow nests.