BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 23, Problem 12SA
Summary Introduction
Introduction:
The metamorphosis of organism into the adult one is an important phenomenon in the life cycle of living organisms. Different stages of metamorphism vary from organism to organism. There are some organisms that contain a stage called pupa in their life cycle.
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Bivalves, cephalopods, and gastropods are alla. arthropods.b. lophophorans.c. cnidarians.d. annelids.e. molluscs.
You go plankton fishing and catch a trocophore larva. You take it home and it develops into some kind of segmented animal. You have caught ...
A.
an annelid
B.
a crustacean
C.
an echinoderm
D.
a mollusc
You find a worm and discover that it has no coelom, no nephridia and a mouth but no anus. What must be true of this animal?
A. it is a xenacoelomorph
B. it is s pseudocoelomate
C. it is hermaphroditic
D. it exhibits bilateral symmetry
E. A, C and D
Chapter 23 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 23 - An ______ develops from a two-layer embryo. a. sea...Ch. 23 - A great adaptive radiation of animals that...Ch. 23 - Prob. 3SACh. 23 - Prob. 4SACh. 23 - Prob. 5SACh. 23 - Prob. 6SACh. 23 - Prob. 7SACh. 23 - Prob. 8SACh. 23 - The ______ include the only winged invertebrates....Ch. 23 - Prob. 10SA
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- Annelids and_______ have a closed circulatory system. a. insects c. flatworms b. cephalopods d. sea starsarrow_forwardWhich of the following is NOT a characteristic of annelids? A.they have a closed circulatory system B.they reproduce through sexual reproduction C.there are both male and female earthworms D.they are able to sense vibrations in the groundarrow_forwardSegmentation, first seen in annelids, allows evolutionary advantages bya. allowing more fluid movement for less energy expense.b. specialization of segments to carry out different functions.c. allowing coelom development.d. concentrating sensory and nervous tissues and organs in the direction of motion.arrow_forward
- The group of mammals that still lays eggs is referred to as a. Marsupials b. All lay eggs c. Placental Mammals d. Monotremesarrow_forwardMonotremes are unique mammals because they: A. posses hair B. give birth to live young C. secret milk in a pouch D. lay eggsarrow_forwardReptiles are much more extensively adapted to life on land than amphibians because reptiles a. have a complete digestive tract. b. lay eggs that are enclosed in shells. c. are endothermic. d. go through a larval stage.arrow_forward
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