If the cells of the morula or the inner cell mass split, what type of twins will develop?
Answer: identical
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Which of the following statements about K-strategists is false?
A. They reproduce quickly. B. They produce few offspring. C. There is a lot of parental investment in the offspring. D. They evolve in stable environments. E. They evolve in environments with intense competition for limited food.
Primary growth
a. occurs along the sides of stems. b. is dependent upon apical meristem. c. increases the diameter of older plants. d. is responsible for additions to woody parts. e. fits all of these descriptions.
Second part of the small intestine___________________
Fill in the blank(s) with the appropriate word(s).
Phenylketonuria is an inherited disorder. Affected individuals have a defective enzyme called phenylalanine hydroxylase. The substance that these individuals cannot break down is a(n):
A) carbohydrate. B) nucleic acid. C) protein. D) lipid. E) amino acid.