When did life first appear on the planet?
A) 3.5 billion years ago
B) 2.1 billion years ago
C) 3.5 million years ago
D) 2.1 million years ago
A
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In white tigers, the absence of fur pigmentation is caused by a recessive allele that also causes the tigers to be cross-eyed. If two tigers heterozygous for this allele mate, what do you expect to see among the offspring?
A. 1/4 will be both white and cross-eyed, 3/4 will be orange with normal eyes. B. 1/4 will be white with normal eyes, 1/4 will be white and cross-eyed, 1/4 will be orange with normal eyes, and 1/4 will be orange and cross-eyed. C. 1/16 will be white and cross-eyed, 15/16 will be orange with normal eyes. D. 1/3 will be both white and cross-eyed, 2/3 will be orange with normal eyes. E. 1/4 will be orange with normal eyes, 3/4 will be both white and cross-eyed. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about monohybrid crosses? Consider Possibilities · What other information is related to the question? 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?
The posterior lobe of the pituitary gland stores and secretes ____
a. ADH only b. TSH only c. oxytocin only d. ADH and oxytocin only e. ADH, oxytocin and TSH
A plant produces small, dull flowers that produce little or no scent, but carries large amounts of pollen. Which pollination method is most likely for this plant?
a. insects b. bats c. wind d. birds
Pseudomonas aeruginosa is resistant to many Antimicrobics
a. true b. false