A pilus is best describes as a?

A - virus that causes a common cold

B - protective shell around a bacterium

C - tube that extends form a bacterium

D-small ring of DNA from a virus

A popular species of fish were split by the formation of the isthmus of panama a long time ago. The fish developed changes in their genes to adapt to the new environment and become two different species

A condition in which excess cerebrospinal fluid accumulates in the brain is called

9. A current of 6.0 amps passes through a motor that has a resistance of 5.0 ohms. Calculate the power. 30 watts 150 watts 180 watts 900 watts Read the statement Chance the correct answer

What layers of the earth make up the lithosphere

When does fermentation take place in your muscle cells

In what two places on plants do seed grow?

Which statement describes gravity? Check all that apply There is no defined unit of measurement for gravity Gravity is the force that pulls objects toward Earth's center Objects that have a small mass will have no gravitational pull Gravitational

Which statement about crustaceans is true? * (A) all have the same number of appendages (B) all have an internal skeleton (C) all have an exoskeleton (D) only some have jointed appendages

5. The measurement of the amount of friction a surface will generate is called the of friction'.

How much of earth's air is made of Nitrogen?