Bio iLearn Practice

Bio iLearn Practice

6th Grade

25 Qs

quiz-placeholder

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Bio iLearn Practice

Bio iLearn Practice

Assessment

Quiz

Science

6th Grade

Hard

NGSS
MS-LS1-6, MS-LS2-4, MS-LS2-3

+10

Standards-aligned

Created by

Lisa Thompson

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A musk thistle plant was moved into a new environment. The musk thistles grew very well in their new home. Other plants in the area began to die because the musk thistles were taking all the nutrients from the soil.


A scientist discovered the problem and decided to bring in weevils. Weevils eat musk thistles. The weevils ate the musk thistles and greatly reduced their numbers. Some of the plants native to the area began to grow again.


Which statement from the story describes a feedback mechanism that is keeping a population within certain limits?

The musk thistles grew very well in their new home.

A scientist discovered the problem and decided to bring in weevils.

The weevils ate the musk thistles and greatly reduced their numbers.

Some of the plants native to the area began to grow again.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Why do plants conduct photosynthesis?

To make light

To make mitochondria

To make glucose

To release carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Choose the correct words or phrases to fit into the blanks to complete the sentence.


Plants use the process of photosynthesis to make _____________ so that they can __________________________.

Sugar, Make food for consumers

Sugar, Grow and reproduce

Solar energy, Dispose of waste

Oxygen, Stay warm

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Biologists studied the effects of light on the growth of plant seedlings. Five seedlings were exposed to different conditions. The conditions are given in Table 1.


Which conclusion can be made about how light affected the seedlings?


Use the picture below to help.

Media Image

The tip of the seedling responds to light to maintain homeostasis

The base of the seedling responds to light to maintain homeostasis

The seedling does not need to respond to light to maintain homeostasis.

Both the tip and the base of the seedling respond to light to maintain homeostasis

Tags

NGSS.MS-LS1-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What are organisms that use other organisms (like producers) for food to gain energy?

decomposers

producers

herbivores

consumers

Tags

NGSS.MS-LS2-3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

This is something introduced to an ecosystem. It can be positive (make more changes) or negative (make less changes)?


The purpose is to help restore an ecosystem to homeostasis (having all their needs met).

Homeostasis

Feedback mechanism

Tomato

Decomposer

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Invasive species alter the ecosystem when they___________in number quickly, this leads to __________ food for the native species.

increase, less

decline, more

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

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