Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.
Both species benefit in the type of symbiosis called mutualism.
Question 24
24.
Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.
A tapeworm living inside a wolf’s body is a predator.
Question 25
25.
Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.
All of the members of a community belong to the same species.
Question 26
26.
Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.
Bees and flowers are biotic factors in an ecosystem.
Question 27
27.
Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.
Population size generally increases if the birth rate is greater than the death rate.
Question 28
28.
Classify these examples of symbiosis by type and explain your choice. Use details about each organism and use complete sentences. :
Inside a human’s intestine live bacteria that make vitamin K;
Question 29
29.
Classify these examples of symbiosis by type and explain your choice. Use details about each organism and use complete sentences.
A human picks up bacteria on his or her hands. The bacteria do not cause disease but do feed on the human’s dead skin cells;
Question 30
30.
Classify these examples of symbiosis by type and explain your choice. Use details about each organism and use complete sentences.
A tick attaches itself to a human and feeds on the human’s blood.
Question 31
31.
Question 32
32.
Question 33
33.
Question 34
34.
Question 35
35.
Question 36
36.
Question 37
37.
Question 38
38.
Question 39
39.
Question 40
40.
Question 41
41.
Which of the following is a biotic factor in the prairie ecosystem?
A. water
B. sunlight
C. soil
D. grass
The place where an organism lives and that provides the things the organism needs is called its
A. habitat.
B. population.
C. species.
D. community.
The smallest unit of ecological organization is a single
A. population
B. community
C. organism.
D. ecosystem.
Which of the following is an example of a population?
A. the cats and dogs in your neighborhood
B. the bushes and grass in a park
C. the rocks in a rock collection
D. the gray wolves in a forest
The largest population that an environment can support is called its
A. carrying capacity.
B. limiting factor.
C. birth rate.
D. death rate.
An organism’s particular role in its habitat, or how it makes its living, is called its
A. carrying capacity.
B. ecosystem.
C. competition.
D. niche.
The behaviors and physical characteristics of species that allow them to live successfully in their environment are called
A. habitats.
B. limiting factors.
C. biotic factors
D. adaptations.
The struggle between organisms to survive in a habitat with limited resources is called
A. competition.
B. predation.
C. symbiosis.
D. parasitism.
When a jellyfish paralyzes a tiny fish with its poisonous tentacles, the fish is the
A. predator.
B. prey.
C. host.
D. parasite.
A close relationship between two species that benefits at least one of the species is called
A. natural selection.
B. symbiosis.
C. adaptation.
D. competition.
An early winter frost preventing further growth in a tomato garden is an example of
A. carrying capacity.
B. a limiting factor.
C. a biotic factor.
D. indirect observation.
All of the following are examples of limiting factors EXCEPT
A. food.
B. soil.
C. space.
D. weather conditions.
The nonliving parts of an ecosystem are called
A. populations.
B. organisms.
C. biotic factors.
D. abiotic factors.
Which of the following describes an interaction in which one organism kills and eats another?
A. competition
B. symbiosis
C. predation
D. mutualism
All the different populations that live together in an area make up a(an)
A. organism.
B. community.
C. species.
D. ecosystem.
The study of how things interact with each other and with their environment is called
A. ecology.
B. photosynthesis.
C. community.
D. biotic studies.
When a flea is living on a dog, the dog is the
A. parasite.
B. host.
C. predator.
D. prey.
Mutualism, commensalism, and parasitism are the three types of
A. symbiotic relationships.
B. predation.
C. competition.
D. prey adaptations.
A hawk building its nest on an arm of a saguaro cactus is an example of
A. commensalism.
B. mutualism.
C. parasitism.
D. predation.
Consumers that eat both plants and animals are called
A. omnivores.
B. herbivores.
C. carnivores.
D. scavengers.
An organism that can make its own food is called a
A. consumer.
B. decomposer.
C. producer.
D. scavenger.
Vultures, which feed on the bodies of dead organisms, are
A. first-level consumers.
B. scavengers.
C. producers.
D. herbivores.
Which biome is described below?
Warm summers, cold winters; receives at least 50 cm of precipitation per year; trees shed their leaves and grow new ones each year
A. Tropical Rainforest
B. Desert
C. Deciduous Forest
D. Grassland
Which biome is described below?
Warm, rainy summers; very cold winters with heavy snow; trees produce cones with seeds that are eaten by many animals
A. Tundra
B. Taiga
C. Grassland
D. Desert
Which biome is described below?
Extremely cold winters, warmer summers; windy; very dry; no trees, only low-growing plants
A. Tundra
B. Taiga
C. Grassland
D. Desert
Which biome is described below?
Receives between 25 and 75 centimeters of rain each year; populated by grasses and many large herbivores
A. Tundra
B. Taiga
C. Grassland
D. Desert
This is the largest biome in the world, covering 70% of the earth.
A. Rainforest
B. Tundra
C. Grassland
D. Aquatic
What biome has the greatest biodiversity?
a. The polar region
b. The taiga
c. The tropical rainforest
d. The savanna
Which biome is described below?
Hot in daytime, cool or cold at night; very dry; organisms are adapted to extreme temperatures and dry conditions
A. Tropical Rainforest
B. Desert
C. Deciduous Forest
D. Grassland
One characteristic feature of tundra is that only the surface thaws in the summer and refreezes in the winter, leaving a layer of permanently frozen subsoil. This characteristic is known as
A. glaciation
B. crystallization
C. permafrost
D. soilfrost
Which biome is charaterized by very low temperatures, little precipitation, and permafrost?
A. Desert
B. Tundra
C. Tropical rainforest
D. Temperate deciduous forest
In which biome would you find most likely find many animals with white fur?
A. Rain Forest
B. Deciduous Forest
C. Tundra
D. Savanna
Which of the following biomes receives the most precipitation?