Heterotrophs obtain carbon by
What will be an ideal response?
recycling the carbon of preexisting biological molecules (ingesting these molecules)
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If a cell has the partial diploid genotype lacI+ lacO+ lacZ- lacY+ _______________________ lacI- l acO+ lacZ+ lacY- , how will its gene expression in the presence of allolactose?
Fill in the blank(s) with correct word
________ phenotypes are passed equally to offspring by both males and females
A) X-linked dominant B) Mitochondrial C) Autosomal dominant D) Autosomal recessive E) X-linked recessive
Evolution occurs
A. When a mutation occurs B. Over generations C. At birth of an organism D. During one lifetime E. All answers are correct
For many years, no one bothered to test the food-competition hypothesis for why giraffes have long necks. Why?
A) It had been much too difficult to test. B) The hypothesis was so plausible that no one thought to question it. C) They tried, but the results were inconclusive. D) The hypothesis did not make clear predictions that could be tested.