The common ancestor to snails, insects and vertebrates lived approximately ________ years ago
a. 85 million
b. 275 million
c. 500 million
d. 110 million
e. 400 million
c
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Myoglobin content is high in
a. fast anaerobic fibers. b. fast aerobic and fast anaerobic muscle fibers. c. slow muscle fibers and fast aerobic muscle fibers. d. slow muscle fibers. e. fast aerobic fibers.
Which of the following statements is false?
a. Chromosomes do not pair during mitosis. b. Genes and chromosomes are duplicated during prophase. c. Each species has a specific number of chromosomes. d. New nuclei are formed during telophase. e. A diploid cell will produce two diploid daughter cells by mitosis
Refer to the accompanying figure. Which of the fruits listed would be classified as an accessory fruit?
a. a b. b c. e d. i e. k
When blood glucose levels rise, insulin signals cells to take up glucose, removing it from the blood. Diabetes mellitus is a disorder caused by a dysfunction in the insulin signaling system. There are two types of diabetes
People with type 1 diabetes must take insulin regularly, usually through injection. People with type 2 diabetes are not helped by supplemental insulin. What does this tell you about where the defect might be in these two disorders? A) Type 1 diabetes is probably caused by defective insulin receptors. B) Type 2 diabetes is probably caused by underproduction of insulin. C) Type 1 diabetes is probably caused by underproduction of insulin. D) Type 2 diabetes is probably caused by overproduction of insulin.