Water (H2O) has a molar mass of 18.0 g/mol. A sample of water has a mass of 18.0. How many moles of water are contained in this sample?

A. 1.00

B. 18.0

C. 36.0

D. 324

Why are the different kinds of chicken we have today not called species

Which answer is the best definition of weather?

Match the vocabulary term with its meaning. 1. civilization the study of humans 2. society a highly developed society 3. culture a document produced some time after the historical event 4.

If each normal body cell of a human contains forty-six chromosomes, then the number of chromosomes in a human egg will be A) 23 B) 24 C) 36 D) 46

Enzymes are important because they

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A new species is introduced to an ecosystem. Over several years, the species biodiversity of the ecosystem decreases. Which statement best explains this observation? Select one: The species did not feed on herbivores in the ecosystem.

Two linked genes, A and B, are separated by 20 cM. A man with genotype AB/ab marries a woman who is ab/ab. What is the probability that their first child will be Ab/ab?

A balance must exist between substances entering and exiting cells. Most animals take in substances by

Which best describes the offspring of protists?