Chapter 22, Problem 17MC

Hermaphroditism (a) is a form of asexual reproduction (b) occurs when an unfertilized egg develops into an adult animal (c) is a form of sexual reproduction in which an animal produces both eggs and sperm (d) typically involves self-fertilization (e) typically requires only a male animal

Houseflies develop through a series of programmed stages from egg, to larva, to pupa, to flying adult. This series of stages is called: a. artificial selection. b. respiration. c. homeostasis. d. a life cycle. e. metabolism.

Flatworms digest food ___________ a. inside their cells c. in a gastrovascular cavity b. in a gizzard d. in a complete digestive tract

An ______ develops from a two-layer embryo. a. sea star c. butterfly b. sea anemone d. earthworm

A life history pattern is a set of adaptations that influence an individual's_________. a. longevity b. fertility c. age at reproductive maturity d. all of the above

1. During the embryonic period, the lungs first appear at about the A. 10th day after fertilization B. 24th day after fertilization C. 6th week after fertilization D. 12th week after fertilization

Which of the following characteristics does not contribute to powered flight in birds? a. a lightweight skeleton b. efficient respiratory and circulatory systems c. enlarged forelimbs and a keeled sternum d. a high metabolic rate that releases energy from food rapidly e. scaly skin on the legs and feet

The correct sequence of complete metamorphosis of an insect is (a) egg immature form adult (b) egg trochophore larva adult (c) egg pupa larva adult (d) egg larva pupa adult (e) adult larva egg pupa

What is the major morphological innovation seen in annelid worms? a. a complete digestive system b. image-forming eyes c. a respiratory system d. an open circulatory system e. body segmentation