life science questions

life science questions

Lichens are

A. insensitive to changes in the environment.

B. symbiotic associations between a fungus and an alga.

C. parasitic interactions between a fungus and an alga.

D. only found growing on living matter.

E. capable of causing some obscure diseases.

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5 points

Question 2

Mammals have two traits that set them apart from all other animals. These are

A. four-chambered heart and body hair or fur.

B. body hair or fur, and being homeothermic.

C. amniotic eggs and milk production.

D. four-chambered heart and milk production.

E. body hair or fur, and milk production.

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5 points

Question 3

In general, mammals are not good at dispersing chili plant seeds because

A. the chili seeds do not stick to the mammals’ fur.

B. the mammals do not travel very far before they release the chili seeds.

C. chili seeds are dispersed mainly by the wind.

D. the mammals are the main pollinators for the chili plant.

E. the seeds die as they pass through the digestive tract.

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5 points

Question 4

It is generally thought that animals have undergone four major physiological and anatomical innovations during their evolution. These are (in no particular order)

A. bilateral symmetry, development of tissues, origin of the multichambered heart, origin of patterns of embryonic development.

B. development of the versatile forelimb, multicellularity, origin of patterns of embryonic development, development of tissues.

C. origin of patterns of embryonic development, development of the versatile forelimb, origin of the multichambered heart, multicellularity.

D. multicellularity, bilateral symmetry, origin of patterns of embryonic development, development of tissues.

E. development of tissues, photosynthesis, bilateral symmetry, multicellularity.

.

5 points

Question 5

In bryophytes, the rhizoids

A. serve as attachment structures.

B. are involved in reproduction.

C. lure possible prey.

D. obtain water.

E. obtain nutrients.

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5 points

Question 6

This characteristic allows fungi to withstand heat and drought conditions.

A. hyphae

B. mycelia

C. spores

D. cell walls

E. specialized organelles

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5 points

Question 7

Which of the following are adaptations to land of both gymnosperms and angiosperms but are lacking in ferns and mosses?

A.

pollen and seeds

B.

spores

C.

fruits and flowers

D.

vascular system

E.

roots, stems, and leaves

.

5 points

Question 8

Which of the following characteristics is not shared by typical birds and mammals?

A. four limbs

B. four-chambered heart

C. milk production

D. endothermy

E. insulating skin structures

.

5 points

Question 9

Which of the following adaptations to life on land is found in both insects and modern reptiles?

A. ability to fly

B. body surfaces that resist evaporation

C. two pairs of walking legs

D. tracheae to distribute oxygen

E. metamorphosis from a larval form

.

5 points

Question 10

Which of the following is not a characteristic differentiating Neanderthals from modern humans?

A. Neanderthals had larger noses.

B. Neanderthals had projecting brow ridges.

C. Neanderthals were stronger.

D. Neanderthals had smaller brains.

E. Neanderthals were shorter.

.

5 points

Question 11

Fungi exhibit certain characteristics. One of these characteristics is that they

A. reproduce using spores.

B. lack cell nuclei.

C. reproduce using seeds and pollen.

D. are capable of carrying on photosynthesis.

E. are prokaryotes.

.

5 points

Question 12

The segmented worms of the phylum Annelida

A. have an open circulatory system.

B. display radial symmetry.

C. are acoelomate.

D. move by use of flagella.

E. possess setae on each segment.

.

5 points

Question 13

All of the following are parts of a flower except the

A. fruit.

B. cuticle.

C. ovary.

D. carpel.

E. stamen.

.

5 points

Question 14

Cnidarians and ctenophores are similar in that they both have

A. a digestive tract with two openings.

B. a pseudocoel.

C. radial symmetry.

D. mesoderm.

E. nematocysts.

.

5 points

Question 15

Green algae such as Ulva demonstrate an alteration of generations. The diploid phase is called the

A. zygote.

B. diploid generation.

C. sporophyte generation.

D. embryo.

E. gametophyte generation.

.

5 points

Question 16

It is generally thought that four critical innovations arose during the evolution of our ape-like ancestors into humans. All of the following are innovations except

A. bipedalism.

B. use of brain power for abstract thought.

C. expansion of the human brain.

D. toolmaking.

E. development of the opposable thumb.

.

5 points

Question 17

In plants, the secondary metabolites are primarily responsible for

A. defense.

B. food gathering.

C. nutrition.

D. protection against ultraviolet radiation.

E. overcoming air pollutants.

.

5 points

Question 18

Plants have adapted to dry land by evolving all of the following except

A. association with mycorrhizae to improve mineral uptake.

B. structures to protect reproductive cells and embryos.

C. secreting a waxy coating to prevent water loss.

D. tissues to conduct water through the plant.

E. forms of chlorophyll more efficient at capturing light.

.

5 points

Question 19

In cnidarians, nematocysts are important in

A. obtaining prey.

B. obtaining oxygen from the water.

C. movement.

D. food digestion.

E. excretion of wastes.

.

5 points

Question 20

All members of the phylum Chordata share

A. tails present throughout their lives.

B. a notochord present sometime in their lives.

C. a vertebral column.

D. gills present throughout their lives.

E. exoskeletons

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