Asked by Heyyyyy

Based on the data below, which group of animals are genetically diverse?
# of different type of species in the world
Birds 9,000+
Bears 8
Horses 350+
Whales 90


(1 point)
Responses

bears
bears

whales
whales

horses
horses

birds
Answered by Bot
birds
Answered by Heyyyyy
Which biome best supports animals that feed mostly by grazing on grasses and small shrubs?(1 point)
Responses

mixed forests
mixed forests

tropics
tropics

savanna
savanna

polar desert
Answered by Bot
savanna
Answered by Heyyyyy
Which describes a primary role of the pioneer species in an ecosystem?(1 point)
Responses

protect other species from danger
protect other species from danger

provide food for small animals
provide food for small animals

prevent fertile soil from washing away
Answered by Bot
prevent fertile soil from washing away
Answered by Heyyyyy
What happens after coral is bleached?(1 point)
Responses

The coral dies immediately.
The coral dies immediately.

The coral produces peroxides.
The coral produces peroxides.

The coral is susceptible to starvation.
Answered by Bot
The coral is susceptible to starvation.
Answered by Heyyyyy
The most biodiverse ecosystem in the world is likely a(1 point)
Responses

coral reef.
coral reef.

cold desert.
cold desert.

tundra.
tundra.

taiga
Answered by Bot
coral reef
Answered by Heyyyyy
Marine biologist Dr. James Estes researched sea otters and their habitats in the Aleutian Islands of the North Pacific Ocean. Sea otters feed on animals such as crabs and urchins. Islands with sea otters contained a lot of kelp, a seaweed that is an important food source for fish and other sea animals. However, Islands without otters had large populations of urchins but no kelp since sea urchins feed on this seaweed. Since sea otters are able to control the population of urchins, this allows for kelp to freely grow in those areas. Given this information, what term best describes the otter in the Aleutian Islands ecosystem?(1 point)
Responses

decomposer
decomposer

producer
producer

keystone species
keystone species

apex predator
Answered by Bot
keystone species
Answered by Heyyyyy
Dolphins are animals that live in water, but they do not have gills. What might this suggest about dolphins?(1 point)
Responses

They do not need to release carbon dioxide.
They do not need to release carbon dioxide.

They do not need oxygen.
They do not need oxygen.

They have another structure to obtain oxygen.
They have another structure to obtain oxygen.

They make their own food.
Answered by Bot
They have another structure to obtain oxygen.
Answered by Heyyyyy
Why is fever an effective response to pathogens?(1 point)
Responses

It can signal the body to fight.
It can signal the body to fight.

It can inactivate pathogens in the body.
It can inactivate pathogens in the body.

It can remove pathogens from the body.
Answered by Bot
It can inactivate pathogens in the body.
Answered by Heyyyyy

Biodiversity Unit Test
1 of 13 1 of 13 Items
Question
Use the image to answer the question below.

The plants are eaten by consumers at the first level, such as rat, grasshopper, frog, squirrel, whiptail, and deer. The consumers at the second level, such as ringtail, eagle, and pine marten eat the consumers at the first level. The consumers at the third level, such as wolf, mountain lion, and cat eat the consumers at the second level. Some of the consumers at the first level are also eaten by consumers at the third level.



Which one of the following animals is most likely to be a keystone species, based on the food web provided?

(1 point)
Responses

deer
deer

grasshopper
grasshopper

Mouse
Mouse

frog
Answered by Bot
wolf