The normal human heart has how many chambers?

A. two

B. six

C. four

D. three

0. What form of matter is made from only one type of atom? element material molecule compound

What is the difference between aerobic and anaerobic respiration?

Who was the first person to look at living cells using a microscope? Anton von Leeuwenhoek Robert Hooke Matthias Schleiden Rudolf Virchow

If a homologous pair of chromosomes fail to separate during meiosis I, what will be the result? A) 2 gametes will have 2 of these chromosome and 2 will have 0 of these chromosomes. B) None of the gametes will have the affected chromosomes.

In sexual reproduction, an offspring is produced with genes from both parents. When the offspring has a new genetic variation that it got from neither of its parents, it is called

Classifications today are made on the basis of ... A. The flower of plants B. Ways that animals reproduce C. Likenesses D. Similarities and differences Urgent: taking a quiz!

How many new cells does your body produce every day?

What body system contains hemoglobin

A distinguishing characteristic that can be inherited is what

The forming and breaking of bonds in a chemical reaction always involves changes in energy what are the 2 options of what happens to that energy?