MSA1-1st Semester Biology Final-Dec 2022

What are the basic building blocks of life?

• Atoms
• Cells
• Tissues
• Organs

What process regulates an organism’s internal

conditions and keeps them stable?

• adaptation

• equilibrium

• homeostasis

• metabolism

What is the most basic unit of life?

• cell
• tissue
• organ
• organ system

A plant is growing towards the light is an example of ...

• reproduction.

• responding to a stimulus.

• metabolism.

• homeostasis.

A model that shows a single sequence of feeding relationships is called a

• food web

• food chain

• feeding chain

• trophic level

Which of the following provide most of the energy in ecosystems?

• keystone species

• carnivores

• producers

• generalists

Decomposers are important to ecosystems because they

• can act as omnivores.

• capture energy from the sun.

• are producers.

• return vital nutrients back to the environment.

Food webs are models that show

• Only primary consumers in an ecosystem.

• Networks of feeding relationships.

• Stored energy in food chains.

• One sequence of producers and consumers.

The temperature, rainfall, and soil/sand in an ecosystem would all qualify as

• a whole ecosystem

• abiotic factors

• biotic factors

• living things

Organisms like fungus and bacteria that break down organic matter into simpler compounds

• decomposers
• detritivores
• scavengers
• carnivores