The movement of substances across a cell membrane from an area of lower concentration to an area of higher concentration, which requires cellular energy & a carrier protein is called:

Volumtary muscle can be controlled whle involutary muscle cannot do you think stomach muscle is voluntary or involuntary?

What is a commercial use for Latic acid fermentation

A heterozygous brown rabbit is crossed with a pure white rabbit. Half of the offspring are brown and half are white. Which of the following describes the trait for brown fur

Which best describes the difference between a theory and a hypothesis? A) A hypothesis can be tested and a theory has already been tested. B) A theory can be tested and a hypothesis has already been tested.

Write TWO specific examples of how you can reuse, reduce, and recycle on the lines provided.

When the skydiver jumps of the plane what force acts on her that causes her to fall

Match the geologic feature with its description. 1. seamount over 1 mile in diameter; looks like a bowl over a volcano 2. syncline underwater volcano that never reaches above sea level 3. hot spring on rolling hills, this a dip between hills 4.

What is free nitrogen? 8 nitrogen that is ready for plants to use nitrogen that has been fixed by bacteria nitrogen that cannot be used by organisms nitrogen that is returned to the soil by decomposers

Which of the following does NOT represent an adaptation that would lead an organism to be successful? A. A wolf in a cold environment growing a thicker coat of fur. B. A caged chicken developing a longer wingspan. C.

What are the 3 things plants must be able to do