FREE BIOLOGY AND STUDY GAMES ABOUT CHAP. 32 AN

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FREE BIOLOGY AND STUDY GAMES ABOUT CHAP. 32 AN

OVERVIEW EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -22 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: tapeworms

Answer:

parasitic flatworm

Question 2: Endoderm

Answer:

The innermost of the three primary germ layers in animal embryos; lines the archenteron and gives rise to the liver, pancreas, lungs, and the lining of the digestive tract in species that have these structures.

Question 3: parasitic mostly vertebrate hosts

Answer:

tapeworms

Question 4: anterior end =

Answer:

scolex with suckers and hooks

Question 5: Determinate cleavage

Answer:

A type of embryonic development in protostomes that rigidly casts the developmental fate of each embryonic cell very early.

Question 6: Ecdysozoan

Answer:

Member of a group of animal phyla identified as a clade by molecular evidence. Many ecdysozoans are molting animals.

Question 7: proglottids do not have true_____

Answer:

segmentation

Question 8: Protostome

Answer:

Development begins with spiral, determinate cleavage. Ventral (bottom) nervous system of paired or fused longitudinal nerve chords. The mouth develops from the blastopore

Question 9: Mesoderm

Answer:

The middle primary germ layer in a triploblastic animal embryo; develops into the notochord, the lining of the coelem, muscles, skeleton, gonads, kidneys, and most of the circulatory system in species that have these structures.

Question 10: proglottids

Answer:

sac of sex organs

Question 11: Coelomate

Answer:

An animal that possesses a true coelem ( a body cavity lined by tissue completely derived from mesoderm).

Question 12: Triploblastic

Answer:

Possessing three germ layers: the endoderm, mesoderm, and ectoderm. Most eumatazoans are triploblastic.

Question 13: Bilateral symmetry

Answer:

Body symmetry in which a central longitudinal plane divides the body into two equal but opposite halves.(shovel)

Question 14: psterior to scolex =

Answer:

proglottids

Question 15: Indeterminate cleavage

Answer:

A type of embryonic development in deuterostomes in which each cell produced by early cleavage divisions retains the capacity to develop into a complete embryo.

Question 16: Cephalization

Answer:

An evolutionary trend toward the concentration of sensory equipment at the anterior (front) end of the body. (including a central nervous system "brain")

Question 17: Deuterostome

Answer:

Development begins with radial, indeterminate cleavage. Dorsal (top) or central nervous system. The mouth is derived from the secondary opening, and the blastopore forms the anus.

Question 18: Radial symmetry

Answer:

Symmetry in which the body is shaped like a pie or barrel (lacking a left side and a right side) and can be divided into mirror-imaged halves by any plane through its central axis. (flowerpot)

Question 19: not segmented

Answer:

tapeworms

Question 20: Ectoderm

Answer:

The outermost layer of the three primary germ layers in animal embryos; gives rise to the outer covering and, in some phyla, the nervous system, inner ear, and lens of the eye.

Question 21: lack GVC absorb all nutrients from host

Answer:

tapeworms

Question 22: Pseudocoelomate

Answer:

An animal whose body cavity is lined by tissue derived from mesoderm and endoderm.