7th Fall Exam Review

Front

What type of organisms are responsible for recycling dead material in an ecosystem?

Back

Decomposers are organisms that break down dead material, returning nutrients to the soil and recycling matter in the ecosystem.

Front

In an undisturbed sequence of sedimentary rocks, which layer would be the youngest?

Back

The youngest layer in an undisturbed sequence of sedimentary rocks is the topmost layer, which is layer 6.

Front

What type of plate boundary is formed when two tectonic plates collide?

Back

A convergent plate boundary is formed when two tectonic plates collide, often leading to mountain formation or earthquakes.

Front

What is the primary function of the human nervous system?

Back

The primary function of the human nervous system is to control and coordinate all bodily functions, allowing for communication between different parts of the body.

Front

What is the role of the peripheral nervous system?

Back

The peripheral nervous system carries messages to and from the central nervous system, connecting the brain and spinal cord to the rest of the body.

Front

What are decomposers and why are they important in an ecosystem?

Back

Decomposers, such as fungi and bacteria, break down dead organisms and waste, returning essential nutrients to the soil and supporting new plant growth.

Front

What is a sedimentary rock?

Back

Sedimentary rocks are formed from the accumulation and compaction of mineral and organic particles, often layered over time.

Front

What happens at a divergent plate boundary?

Back

At a divergent plate boundary, two tectonic plates move apart, leading to the formation of new crust, often seen in mid-ocean ridges.

Front

What is the function of the circulatory system?

Back

The circulatory system transports blood throughout the body, carrying oxygen, nutrients, and waste products.

Front

What is the difference between carnivores and herbivores?

Back

Carnivores are animals that eat other animals, while herbivores are animals that primarily consume plants.