Which group of organisms are hermaphrodites?
a. Elephants
b. Hydras
c. Aphids
d. Lemon sharks
e. Tapeworms
e
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An opening at one end of the gastrointestinal tract that functions in mechanical digestion and the breakdown of carbohydrates by secreting amylase.
A) Large intestine B) Stomach C) Esophageal cancer D) Appendix E) Mouth F) Salivary glands G) Rectum H) Cirrhosis I) Gallbladder J) Small intestine
Which is a characteristic of seminal fluid?
A) It consists of sperm and secretions. B) It is acidic. C) It travels through the large intestine to the anus. D) It is free of prostaglandins and nutrients.
Which of the following is NOT involved in probing
for a gene using nucleic acid hybridization and a radioactive probe? a. cloning of individual cells b. a hybridized probe c. rupturing cells d. denaturing DNA e. antibiotics that kill the cells that have not incorporated the gene
Which of the following examples does NOT describe a predation event?
a. a pollinator eats the pollen and nectar of a flower b. a carnivore catches and eats a deer c. an herbivore eats a few of the leaves from a tree d. a producer creates energy from sunlight e. only b describes a predation event