Science

Plants maintain homeostasis (get their needs met) by conducting POSITIVE phototropism. What is that?

• When a plant grows toward light.

• When a plant grows away from light.

• When a plant doesn't move at all.

• When a plant wilts.

Tags

NGSS.MS-LS1-5

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.

• 
• 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

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

• decomposers

• producers

• herbivores

• consumers

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

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-LS2-4

Select TWO statements that describe the role of producers in the forest.

• Producers provide an energy source for consumers.

• Producers provide an energy source for decomposers.

• Producers use solar energy to conduct photosynthesis.

• Producers provide an energy source for other producers.

• Producers use organic matter to conduct photosynthesis.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the process where plants collect energy from the Sun, and absorb water and carbon dioxide to create food (a type of sugar--glucose) to survive and some leftover oxygen (for us to breathe)?

• Photosynthesis

• Homeostasis

• Biodiversity

• Consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is something introduced to a system that can be positive (increase changes in the system) or negative (reduce change in the system)?

The purpose is to help restore a system (such as an animal or ecosystem) to homeostasis (having everything they need met).

• Homeostasis

• Feedback mechanism

• Tomato

• Decomposer

Choose the correct words or phrases to fit into the blanks to complete the sentence. Plants use the process of photosynthesis to make A:_____________ so that they can B:__________________________.

• 1 B: 7

• 1 B: 6

• 4 B: 5

• 2 B: 3

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Which of the following is a type of species that has been brought by humans into an ecosystem they don't belong in. Only then, they don't fit in, harm the ecosystem, take away food, shelter, or other needs from native organisms, etc.

• Endangered species

• Extinct species

• Invasive species

• Miniscule species

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5