Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 42, Problem 1FIB
Reproduction by a single animal, without the need for sperm fertilizing an egg, is called ____________ reproduction. A(n) ____________ is a new individual that grows on the body of the adult and eventually breaks off to become independent. During _________, an adult animal splits into two or more pieces, and each piece regenerates a complete organism.
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The process of growing old is called _____.
After the sperm cells enter a synergid, one fertilizes the egg in a two-step process. First there is fusion of the sperm cell’s protoplasm with that of the egg, a step called ______________________________. Then the sperm cell nucleus fuses with the egg cell nucleus, the second step, called _____________________________.
Use the information and table to answer the following information.
The table shows features of four different organisms.
Feature
Organism W
Organism X
Organism Y
Organism Z
Number of cells
many
one
one
many
Cells have at least 1 nucleus
yes
no
yes
yes
Cells have walls
absent
present
absent
present
Does photosynthesis
Does respiration
Type of Reproduction
Can move about
no
yes
no
no
yes
yes
yes
yes
sexual
asexual
asexual
sexual
yes
yes
yes
no
After carefully analyzing and interpreting the data from the comparison chart, which organism is LEAST related to the
others?
O A. Organism Z
O B. Organism X
O C. Organism W
O D. Organism Y
Chapter 42 Solutions
Biology
Ch. 42.1 - Prob. 1TCCh. 42.1 - Prob. 2TCCh. 42.1 - Prob. 1CSCCh. 42.1 - Prob. 1CYLCh. 42.1 - Prob. 2CYLCh. 42.1 - Prob. 3CYLCh. 42.2 - Mammalian sperm dont live very long after...Ch. 42.2 - Prob. 1TCCh. 42.2 - Prob. 1HYEWCh. 42.2 - describe the human male and female reproductive...
Ch. 42.2 - explain how hormonal interactons control...Ch. 42.2 - describe spermatogenesis and oogenesis, the...Ch. 42.3 - In 2017, scientists used CRISPR Cas9 DNA editing...Ch. 42.3 - describe the principal methods of contraception,...Ch. 42.3 - Prob. 2CTCh. 42 - In humans, sperm are produced in the a....Ch. 42 - In humans, fertilization usually occurs in the a....Ch. 42 - Prob. 3MCCh. 42 - Prob. 4MCCh. 42 - Prob. 5MCCh. 42 - Reproduction by a single animal, without the need...Ch. 42 - In mammals, the male gonad is called...Ch. 42 - Prob. 3FIBCh. 42 - Prob. 4FIBCh. 42 - Prob. 5FIBCh. 42 - Oocytes develop in a multicellular structure, the...Ch. 42 - Describe the advantages and disadvantages of...Ch. 42 - Compare the structures of the egg and sperm. What...Ch. 42 - Prob. 3RQCh. 42 - List the structures, in order, through which a...Ch. 42 - Name the three accessory glands of the male...Ch. 42 - Prob. 6RQCh. 42 - Prob. 1AC
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- How many modes of reproduction are there in animals? I. One type II. Two types III. Three types IV. Four typesarrow_forwardis when an egg is released from the ovary. This typically occurs once a month in females. occurs when the egg is not fertilized. It involves the egg being broken down by enzymes in the uterus, as well as the egg and the uterine lining being expelled from the body. occurs when male and female sex cells unite. Fertilization produces a which eventually turns into an embryo, and later into a fetus, is a word used to describe cell division in a zygote. The zygote undergoes cleavage/cell division to form a hollow ball of cells called a blastocyst. or After the zygote becomes a blastula, the cells keep dividing into a ball of cells that is composed of three germ layers. This ball of cells composed of three germs layers is called a is the process by which cells develop in different ways to perform different functions. Once it has begun, tissues and organs develop rapidly from the three germ layers of the gastrula. About 8 weeks after fertilization, the major organs have begun to develop and…arrow_forwardThe term newborn refers to the period from birth through _____, whereas the term infant refers to the period from _____.arrow_forward
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