Which of the following determines blood volume?

The strength of heart contraction

The amount of water in the blood

ABO blood type and Rh factor

Heart rate and respiratory rate

The finches of the Galápagos Islands changed over time as insects became more plentiful.

What are the differences between DNA ad RNA?

A prolonged world-wide drought might A. change world human population. B. alter economic conditions. C. cause disease to spread. D. All of the above. E. None of the above. F. Both A and C.

Which is not one of the main areas of earth science

2. Fungi can act as decomposers in the environment. Why is this important? O A. Decomposers allow plants to ingest nitrogen through their root nodules. O B. Decomposers break down waste and return nutrients to the environment. O C.

Explain what is meant by the statement cleaner than coal

What type of cells are produced after fertilization occurs and the gametes combine? A) an egg cell B) a sperm cell C) a diploid zygote D) a haploid zygote

On a hot summer day, you notice a line of dark clouds forming. based on this observation, you go back inside and get an umbrella. what scientific skill have you used.

Which of the following is an example of a cultural control of pests? using natural pest predators using pest hormones using synthetic pesticides keeping homes clean

Why do microbiologists often disinfect work areas before working with bacterial cultures?