Which is true of hydroxide ions?

a.) they contain two hydrogen atoms

b.) they are not found in pure water

c.) they dissociate to form protons

d.) they have a negative charge

Conception is the moment a sperm meets an egg resulting in pregnancy. a. True b. False

Elements and compounds cannot be broken down into simpler substances by an ordinary process

Total magnification of a specimen under the scanning objective is: A 40x B 100x C 400x

In cats, the allele for long hair is recessive to the allele for short hair (so short hair is dominant). if two cats that are heterozygous for hair length (aa x aa) have offspring, what percentage of the offspring will have long hair.

Taxol is a common drug used in cancer treatments that acts as a microtubule stabilizer to inhibit cell division. If a researcher wanted to see how this drug affects development, which model organism would they use and why?

What is the ultimate energy source for the producers

Which process is a form of mechanical weathering? A. Hydration B. Carbonation C. Exfoliation D. Oxidation

The nurse obtains the patient's history to identify factors that may affect drug pharmacokinetics. which patients who are on highly protein-bound drugs are likely to experience drug toxicity?

The hellenistic philosophy advocating the avoidance of both joy and pain is called

What names did the ancient romans give to the planets that they knew of