Midterm Review

What term refers to an individual form of life made up of one or more cells?

• Cell

• Tissue

• Organ

• Organism

What life process involves the number or mass of cells in an organism increasing?

• Responding

• Growth

• Homeostasis

• Reproduction

Which is an organ system?

• Brain

• Spinal cord, stomach, bladder

• Brain, spinal cord, nerves

• Neuron

What is the smallest unit of a living thing?

• cell

• tissue

• organ

• organism

When you exercise, your heart rate increases. What is the stimulus?

• Exercise

• Increased heart rate

What is an ecosystem?

• All the living things in an area

• All the nonliving things in an area

• Interacting living and nonliving things in an area

• An organism's habitat

Which systems are responsible for oxygen from the lungs passing into the bloodstream?

• Skeletal and muscular

• Digestive and excretory

• Nervous and endocrine

• Respiratory and circulatory

What is the biosphere?

• All the air around Earth.

• All the water on Earth.

• All the rock on Earth.

• All the ecosystems on Earth.

What niche includes herbivore, omnivores, and carnivores?

• Producer

• Consumer

• Decomposer

How do decomposers get nutrients and energy?

• They make food using sunlight.

• The eat other organisms.

• They break down dead things.