How are parasitism and predation similar?

One organism benefits and the other is harmed.

One organism benefits and the other is not harmed.

Which of the following is NOT and example of how biotic factors interact with abiotic factors in an ecosystem?

A lion preys on a herd of gazelle.

Plants remove CO2 from the air.

Animals cause erosion by digging.

A lizard raises its body temperature by using heat from the sun.

What is Natural Selection?

A theory that the strong survive while the weak don’t

The idea that past generations were better suited to environments than the modern generations

Stronger animals die easier than weaker animals

Water with which of these conditions would cause the most competition for resources among all three species of fish?

mild temperatures, some suspended particles, flows at medium speed

Very cold, very clear, and very fast

very warm, very clear, and very slow

mild temperatures, some suspended particles, flows very fast

The dark form of the peppered moth survived the industrial revolution due to :

the soot covered trees created camouflage

the dark moths ate the light moths

the dark moths laid fewer eggs than the light moths.

What adaptation would BEST help an animal survive a much colder climate?

adding a thick layer of fat under the skin

becoming more sensitive to smells

Base your answer(s) to the following question(s) on the diagram below that shows variations in the beaks of finches in the Galapagos Islands and on your knowledge of biology. The diversity of species seen on the Galapagos Islands is mostly due to

gene manipulation by scientists

gene changes resulting from mitotic cell division

A great fisherman has caught many fish at his local fishing hole. Lately he has had a hard time catching fish. Why is this most likely occurring?

The population has decreased due to overfishing.

the fish have become camouflaged

the fish have migrated out of the area.

Ecosystems

Authored by Chelsea Escalon

Biology

8th Grade

NGSS covered

Used 337+ times

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23 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Who is the scientist who had the idea of evolution by natural selection?

Pierce

Darwin

Kettlewell

Aristotle

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many carnivores are shown in this food web?

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is a herbivore?

cricket

frog

hawk

shrew

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which organism do the owl and the weasel compete for in the food web?

Hawk

Spider

Grasshopper

Shrew

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The rabbit in this food web would be considered a:

Decomposer

Producer

Secondary Consumer

Primary Consumer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In the food web shown, the snail would be considered...

primary consumer

secondary consumer

tertiary consumer

producer

Tags

NGSS.MS-LS2-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many primary consumers are there in this food web?

Tags

NGSS.MS-LS2-2

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Ecosystems

Who is the scientist who had the idea of evolution by natural selection?

How many carnivores are shown in this food web?

Which of the following is a herbivore?

Which organism do the owl and the weasel compete for in the food web?

The rabbit in this food web would be considered a:

In the food web shown, the snail would be considered...

How many primary consumers are there in this food web?

How many herbivores are in this web?

How are parasitism and predation similar?

Remoras are small fish that swim close to or attach themselves to sharks. Remoras eat small scraps left as the sharks feed and the sharks are unaffected. What kind of relationship is this?

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