Which of the following is a simple food chain? Options: Sun → Grass → Rabbit → Fox, Sun → Water → Soil, Rabbit → Grass → Sun, Fox → Rabbit → Grass

Sun → Grass → Rabbit → Fox

Why does high biodiversity increase ecosystem stability?

More species provide more resources and resilience to change

Correct mathematical representation of the photosynthesis equation?

$$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$$

Which of the following best describes natural selection?

Individuals with traits best suited to the environment survive and reproduce

Example of a design solution to maintain biodiversity:

Creating wildlife corridors between habitats

What best describes the relationship between genetic variation and survival in a population?

Genetic variation increases the chance that some individuals will survive environmental changes

A population of beetles has both green and brown individuals. If birds can see green beetles more easily, what is likely to happen to the population over time?

Brown beetles will increase in number

What is a likely outcome if a disease wipes out one plant species in a low-biodiversity ecosystem?

The ecosystem may collapse due to lack of food sources.

How might variation in leaf size help a plant population survive a drought?

Some plants with smaller leaves may survive better, allowing the population to persist

Which of the following is an example of commensalism? A bee pollinating a flower A barnacle attaching to a whale A tick feeding on a dog A lion hunting a zebra

A barnacle attaching to a whale

A population of rabbits has the following fur color distribution: 60% brown, 30% white, and 10% black. If a predator prefers white rabbits, predict what will happen to the frequency of white fur over time.

The frequency of white fur will decrease

Which solution is better for maintaining biodiversity in a local wetland: planting only one type of native plant or planting a variety of native plants?

Planting a variety of native plants, because it increases biodiversity and ecosystem stability.

After a drought, which ecosystem is more likely to recover: one with high biodiversity or one with low biodiversity?

The high biodiversity ecosystem, because it has more species that can adapt to change.

Explain how natural selection led to a population of insects becoming resistant to a new pesticide.

Insects with resistance survived and reproduced, passing the trait to offspring.

If the mayfly population decreases, what is the most likely effect on frogs, salamanders, and trout?

Their populations will decrease

Which fish net design is better for maintaining fish biodiversity and why?

The net that allows smaller fish to escape, because it helps maintain fish populations and biodiversity.

How will the frequency of dark colored moths change over time after trees become darker due to pollution?

The frequency of dark moths will increase because they are better camouflaged and survive more.

Life Sciences Study Guide Flashcards

Student preview

30 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the main source of energy for almost all life on Earth?

Back

The Sun

Tags

NGSS.MS-LS1-6

2.

FLASHCARD QUESTION

Front

What is the process by which green plants make their own food using sunlight called?

Back

Photosynthesis

Tags

NGSS.MS-LS1-6

3.

FLASHCARD QUESTION

Front

Which pigment in plant cells is responsible for absorbing sunlight?

Back

Chlorophyll

Tags

NGSS.MS-LS1-6

4.

FLASHCARD QUESTION

Front

What are the two main products of photosynthesis?

Back

Oxygen and glucose

Tags

NGSS.MS-LS1-6

5.

FLASHCARD QUESTION

Front

What term describes the variety of different species in an ecosystem?

Back

Biodiversity

Tags

NGSS.MS-LS2-5

6.

FLASHCARD QUESTION

Front

Example of a consumer in a food web: Grass, Rabbit, Sunlight, Water

Back

Rabbit

Tags

NGSS.MS-LS2-2

7.

FLASHCARD QUESTION

Front

What is the process by which populations slowly change over time called?

Back

Evolution

Tags

NGSS.MS-LS4-4

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