What is it called when changes occur in an ecosystem that already exists? *

a. primary succession

b. secondary succession

c. pollution

Name the four types of particles found in the atmosphere.

What is a population? How do different populations affect one another?

Why do organisms do meiosis? To make more skin and muscle cells in their bodies. To make gametes (sperm or eggs). All of the above

As the sea floor spreads a gap is created that slowly grows wider as the continents drift apart true or false

Bears will eat just about anything: berries, fungi, salmon, insects, and much more. Bears are herbivores O carnivores omnivores

1. Which of the following forms all matter?

True or false Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.

When a protein is denatured, why does it lose its functionality?

This is a rotating machine that converts the kinetic energy of the wind into mechanical energy. If the mechanical energy is used directly by machinery, such as a grinding stone, the machine is usually called a windmill.

In what way are slime molds similar to kelp?