science questions

what makes an organism resistant to a chemical?

a gene that allows it to break down a chemical into harmless substances

which of the following characteristics is shared by bacteria, fungi, and plants? a. They usually have cell walls. b. They have cell nuclei. c. They are single celled. d. They have the ability to make their own food.

a. They usually have cell walls.

what kind of habitat does a salamander need to survive? a. damp forest floor b. sunny top of a tree c. dry forest floor d. sunny desert rock

a. damp forest floor

an organism is resistant to a chemical if it a. has a gene that enables it to break down the chemical b. has been exposed to a small amount of the chemical over time c. was not in the area where the chemical was applied d. did not eat anything with the chemical on it

a. has a gene that enables it to break down the chemical

which of the following statements about an organism's habitat is not true? a. most organisms can survive if they are taken away from heir habitat b. an organism's habitat is the place where it lives c. an organisms habitat has specific characteristics that an organism needs to live there d. a habitat contains biotic and abiotic factors

a. most organisms can survive if they are taken away from heir habitat

a fungus's cells have a. nuclei and cell walls b. cell walls and chlorophyll c. nuclei and chlorophyll d. none of the above

a. nuclei and cell walls

Which of the following kingdoms include organisms that can make their own food? a. protists and plants b. plants and animals c. fungi and plants d. fungi and protists

a. protists and plants

Humans have promoted the evolution of insects that are resistant to insecticides by a. trying to control pests with chemicals. b. using insecticides that are outdated. c. using the wrong insecticide. d. breeding more useful insects.

a. trying to control pests with chemicals.

are rocks biotic or abiotic?

abiotic

is air biotic or abiotic?

abiotic

is light biotic or abiotic?

abiotic

is sand biotic or abiotic?

abiotic

is temperature biotic or abiotic?

abiotic

is water biotic or abiotic?

abiotic

name one undesirable disease that fungi are responsible for?

athletes foot

The Chihuahua is a dog that exists because of a. natural selection. b. artificial selection. c. resistance. d. abiotic factors.

b. artificial selection.

Which of the following is not one of the kingdoms of living things? a. fungi b. bacteria c. animalia d. protista

b. bacteria

the process of two species changing genetically in response to long term interactions with each other is a. artificial selection b. coevolution c. selective breeding d. resistance

b. coevolution

Phytoplankton are important protists because they are the initial source of a. food in most land ecosystems. b. food in most ocean and freshwater ecosystems. c. oxygen in the atmosphere. d. Both (a) and (b)

b. food in most ocean and freshwater ecosystems.

a fungus gets food from a. chlorophyll b. its surroundings c. yeast d. none of the above

b. its surroundings

are animals biotic or abiotic?

biotic

are dead organisms biotic or abiotic?

biotic

are dead parts of organisms biotic or abiotic?

biotic

are plants biotic or abiotic?

biotic

what is an ecosystem made up of?

both living and nonliving things

what human activity promotes the evolution of organisms that are resistant to certain chemicals?

by trying to control pests and bacteria with chemicals

the organisms most likely to belong to the same species are a. people at a football game b. bacteria inside a person's body c. birds in a forest d. organisms in a pong

c. birds in a forest

the reproductive structure of a fungus is a a. network of fibers b. fungi c. mushroom d. chlorophyll

c. mushroom

for evolution to occur in a population, individuals with a trait that is "naturally selected for" must a. live a long time b. leave the area c. reproduce d. coevolve

c. reproduce

which of the following is NOT true of an adaptation? a. It is an advantage to an organism in certain environments. b. It increases an organism's chance of reproducing. c. It increases an organism's chance of survival. d. It decreases an organism's chance of evolving.

d. It decreases an organism's chance of evolving.

some organisms are more likely to survive because they a. have certain physical traits b. lack certain physical traits c. have certain behaviors d. all of the above

d. all of the above

which of the following is an ecosystem? a. tropical rain forest b. oak forest c. coral reef d. all of the above

d. all of the above

Many angiosperms depend on a. other animals in the oceans. b. gymnosperms for reproducing. c. plants for food. d. animals to carry pollen and disperse seeds.

d. animals to carry pollen and disperse seeds.

a fungus is an organism whose cells have a. nuclei b. cell walls c. chlorophyll d. both a and b

d. both a and b

organisms can adapt a. to their physical surroundings b. to other organisms c. to selective breeding d. both a and b

d. both a and b

One way that bacteria and fungi are important to the environment is that they a. produce oxygen. b. use the sun's energy to make their own food. c. are a major food source in many ecosystems. d. break down dead organisms.

d. break down dead organisms.

the community of a pond is made up of all the a. biotic and abiotic factors b. resources organisms need c. habitats in and around the water d. populations of fish, insects, and other living organisms

d. populations of fish, insects, and other living organisms

most of a fungus's body is its a. mushroom b. miniature skeleton c. exoskeleton d. underground network of fibers

d. underground network of fibers

biotic parts of an ecosystem interact with ________________________________ and with ______________

each other in various ways; abiotic factors

if an organism reproduces quickly, its population can _______ faster.

evolve

what beneficial effect do fungi have on blue cheese?

it gives the blue cheese its strong flavor

what effect do yeasts have on bread?

it produces a gas that makes bread rise

biotic factors are the _______ and ____________ parts of an ecosystem

living; once-living

abiotic factors are the __________ parts of an ecosystem

nonliving

the root word bio means "life" if you know that biotic means "having life," what can you guess is one of the meanings of the prefix a-?

the prefix a- means not, no, without

the energy is most ecosystems comes from...

the sun

when a pesticide is sprayed and there are still survivors, what can you assume about them?

they are resistant and will pass that gene to their offspring

what important role do fungi play in the environment?

they break down bodies and body parts of dead organisms

name two ways in which fungi are similar to bacteria

they break down bodies and body parts of dead organisms and they both can make you sick