eukaryotes
What will be an ideal response?
do have membrane-bound organelles and nuclei.
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The types of bonds found in nucleic acids are:
A. phosphodiester bonds. B. peptide bonds. C. ionic bonds. D. non-polar covalent bonds.
Which of the following secretions is NOT a digestive enzyme?
a. bile b. pepsin c. trypsin d. lipase e. amylase
Which of the following do mycorrhizae, present for most plant species, generally NOT help roots with the uptake of?
a. water b. nitrogen c. phosphate d. carbon
In 2017, Holen and colleagues announced the discovery of a 130,000-year-old site in California that they claimed contained a mastodon that had been butchered by humans (genus Homo). Why did some in the scientific community express skepticism and caution in accepting the findings?
A. Humans are not thought to have mastered sophisticated tool use by 130,000 years ago. B. Mastodons are thought to have gone extinct long before that. C. The level of cooperative hunting needed to take down a mastodon did not appear until much more recently. D. It is widely believed that Homo sapiens are the only humans to have occupied North America and they did not arrive until 20,000 years ago. E. Homo neanderthalensis, the dominant hominin of the time, was vegetarian.