Seeds appeared in the fossil record by:
A. 100 million years ago
B. 365 million years ago
C. 545 million years ago
D. 780 million years ago
E. a billion years ago
B. 365 million years ago
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What conclusion can you draw from the figure above?
A) Without direct contact, mussels can sense the presence of crabs. B) Mussels can sense the presence of crabs only visually. C) Mussels are increasing their shell thickness in response to water current. D) Shell thickness is a non-inducible defense. E) Crabs hunt for mussels by focusing on the chemicals they emit into the water.
Many antibiotics kill bacteria because they hinder translation by prokaryotic _____.
A. ribosomes B. capsules C. cytoskeleton D. cytoplasm E. nucleoids Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about translation? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following exhibits bilateral symmetry?
A) a butterfly B) a sponge C) a sea anemone
A reaction to an allergen is a ________ hypersensitivity.
A. type I B. type II C. type III D. type IV E. type V