If the population of rattlesnakes were to decrease, why would that help to increase the population of hawks?

Rattlesnakes and hawks both eat kangaroo rats.

It would not help the hawk population.

What is the difference between a population and a community?

A population is made up of only one species. A community is made up of all species in an area.

A population is made up of all species in an area. A community is made up only of one species.

A population is made up of all the species and nonliving things in an area. A community is made up of all species in an area.

What is the difference between a community and an ecosystem?

An ecosystem consists of living and nonliving things in an area. A community is all the populations in the area.

An ecosystem consists of living and nonliving things in an area. A community is all the members of one species in the area.

An ecosystem consists of nonliving things in an area. A community is all the living things in the area.

An ecosystem consists of all the populations in an area. A community is all the nonliving things in the area.

Why is biodiversity important to ecosystems?

It helps populations adapt to ecological changes.

It increases at each level of the food chain.

Makes the environment more beautiful.

It is actually not very important

Currently sharks are on a rapid decline due to overfishing. If sharks go extinct will this affect the biodiversity of the ocean?

Yes, it will disrupt the entire food chain in the ocean.

No, sharks will only affect the seal populations.

How can humans best help an endangered species avoid extinction?

they can protect the animal’s habitat

they can put the animals in a zoo

they can take the animal to new habitats

What factor contributes most to the sustainability of a habitat?

Competition between large predators

Over time, scientists are predicting the Baltic Sea to become less salty. As a result, there will be less biodiversity. Which best explains why the biodiversity of the Baltic Sea would decrease?

Plants and animals adapted for living in saltier conditions will not be able to survive and reproduce.

Fewer types of plants and animals are found in warm water than in cool water.

Plants and animals adapted for living in saltwater will grow more slowly in water that has less salt.

Animals adapted for living in warm water will eat all the plants and animals adapted for living in cool water.

Which of the following is a description of an abiotic factor that makes up part of a desert habitat?

Extremes of day and night temperatures.

Sparse growth of cottonwood trees.

Few large predators, such as coyotes

Leafless, waxy-coated plant with sharp spines.

Which of the following is a physical adaptation for the underlined animal?

A snake unhinges its jaw to eat a rabbit it just caught.

A hognose snake rolls over, slows its breathing, and hangs its tongue out to pretend to be dead.

A herd of buffalo encircle their young to protect them from a pack of wolves.

A dung beetle rolls a piece of dung across the desert.

What is selection pressures?

External agents affecting the ability of an organism to survive in a given environment

Internal agents affecting the ability of an organism to survive in a given environment

Internal organs affecting the ability of an organism to breathe in a given environment

External factors that have no effect on the survival of an organism

Which of the following is true?

Selection pressures can be positive or negative

Selection pressures can be only positive

Selection pressures can be only negative

What is the definition of biotic and abiotic?

Biotic factors are living components of an ecosystem. Abiotic factors are non-living components in the environment which affect ecosystems.

Biotic factors are non-living components of an ecosystem. Abiotic factors are living components in the environment which affect ecosystems.

Biotic factors are competitive components of an ecosystem. Abiotic factors are non-competitive components in the environment which affect ecosystems.

Biotic factors are trends in line graphs. Abiotic factors are trends in bar graphs.

Which organism would MOST LIKELY be adapted for life in a desert environment?

A small, tan coyote with very short, thin fur

A large, white rabbit with long, thick fur

Evolution has multiple lines of evidence that support the idea of a common ancestor. What are these?

Embryology, biochemical evidence, anatomical similarities, biogeography, fossil record

Pentadactyl limb, species variation, convergent evolution, and radiometric dating

Species distribution, antibiotic resistance, divergent evolution, DNA sequencing

Relative dating, DNA hybridization, adaptive radiation and biodiversity

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

Fossil D is older than fossil C

Fossil A and C are the same age

Fossil B is older than fossil C

Fossils A is older than fossil B

A fossil of an extinct dinosaur is found and the anatomy of the fossil shows similarities to that of a bird. What could this mean?

The extinct dinosaur and modern bird share a common ancestor

This is purely by chance and isn't significant

All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today

Dinosaurs choose to fly, and evolved into birds to escape predation and capture food

Biology Module 4 Earths Diversity

Authored by Charles Martinez

Biology

11th Grade

NGSS covered

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50 questions

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MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Which type of symbiosis involves both species benefiting? +/+

Mutualism

Commensalism

Parasitism

Competition

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Which type of symbiosis involves one species benefiting while the other is harmed? +/-

Mutualism

Commensalism

Parasitism

Symbiosis

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Which type of symbiosis involves one species benefitting while the other is unaffected? +/0

Mutualism

Commensalism

Parasitism

Allelopathy

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Which of the following is NOT a threat to biodiversity?

Overhunting

Invasive species

Water purification

Human activity

All of the different species of living things in a given area is called:

Population

Community

Ecosystem

biome

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Coyote populations have been increasing in recent years. Which would not be a reason for their increase?

More food is available

Less competition from other predators

Less available habitat to live in.

Less threat of being hunted by humans

If the populations of grasshoppers would decrease, what affect would that have on the population of lizards?

Increase

Stay the same

Decrease

Unable to determine

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Biology Module 4 Earths Diversity

Which type of symbiosis involves both species benefiting? +/+

Which type of symbiosis involves one species benefiting while the other is harmed? +/-

Which type of symbiosis involves one species benefitting while the other is unaffected? +/0

Which of the following is NOT a threat to biodiversity?

All of the different species of living things in a given area is called:

Coyote populations have been increasing in recent years. Which would not be a reason for their increase?

If the populations of grasshoppers would decrease, what affect would that have on the population of lizards?

If the population of rattlesnakes were to decrease, why would that help to increase the population of hawks?

What is the original source of energy for this ecosystem?

Both the lion and the cheetah eat some of the same prey in this ecosystem. Two organisms going after the same resource is known as

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