Which of the following is not a freshwater ecosystem?

a.

lakes

b.

rivers

c.

seas

d.

springs

What is the density of a liquid that has a volume of 20 mL and a mass of 3 g?

What natural resources are used to make the synthetic product?

In America people produce approximately how much trash every day?

During the propagation of the excitation wave along the sarcolemma, the action potentials travel down the

Which is a characteristic of atoms? They come in ten major types. They are the smallest units of matter. They can be divided. They cannot combine together.

Sodium benzoate is a bitter chemical often used in tiny amounts as a food preservative. The ability of humans to taste sodium benzoate is caused by a dominant allele, t. The recessive allele ("non-taster") is n.

Which of the following correctly displays the sequence of developmental milestones? A) blastula → gastrula → cleavageB) cleavage → gastrula → blastulaC) cleavage → blastula → gastrulaD) gastrula → blastula → cleavage

What is true about DNA

Can a person with type O blood receive any other blood type besides type O? Why?

Why do it rain in the sun