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(1) Discuss the processes of exchange of oxygen and carbon dioxide that occur at the
alveoli and muscle cells of mammals. Include in your answer a description of the
transport of these gases in the blood.
Table 3.2: Grid for answering an essay question
(1) Discuss the processes of exchange of O2 and CO2 that occur at the alveoli
and muscle cells of mammals. Include in your answer a description of the
transport of these gases in the blood.
Exchange
O2
CO2
alveoli
muscle cells
Transport
blood
Table 3.3: Grid and notes for answering an essay question
(2) Discuss the processes of cleavage, gastrulation, and neurulation in the frog
embryo; tell what each process accomplishes. Describe an experiment that
illustrates the importance of induction in development.
cleavage
process
accomplishment
Rapid mitosis
No cell growth
Grey crescent
Forms blastula
Unequal distribution
gastrulation
Cell migration
Involution
invagination
3 tissue layers
gut
Induction experiment
description
illustration
Dorsal lip experiment
Cells influence development of neighbors
Induces differentiation
Influences gene expression
neurulation
Folds form
Neural folds fuse
Neural tube
neurula
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