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Question
Molecules of water stick to each other because:
A) hydrogen bonds form between the hydrogen atom of one molecule and the oxygen atom of another molecule.
B) water molecules are nonpolar, and nonpolar molecules stick together.
C) hydrogen bonds form between the hydrogen atom of one molecule and a hydrogen atom of another molecule.
D) covalent bonds form between the hydrogen atom of one molecule and the oxygen atom of another molecule.
Answer
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Related questions
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Which of the following best describes the period during which the developing offspring is considered a fetus?
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B) from fertilization to eight weeks
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Which of the following statements concerning sperm and fertilization is correct?
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C) The first capacitated sperm fertilizes the egg.
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A man has been experiencing reduced urine flow problems. After examination by his doctor, the diagnosis is an enlarged prostate gland. What is the connection between prostate enlargement and reduced urine flow?
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The sequence of development of sperm is:
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On average, about how often does ovulation occur?
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Through what structure does an oocyte travel on its way to the uterus?
A) uterine tube
B) cervix
C) vagina
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If you could stop diffusion of substances in fruit fly zygotes, could you stop normal development? Why or why not?
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Programmed cell death is also known as ________.
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You are a substitute teacher in a high school biology lab class on the day the students are dissecting frogs. A particularly bright student happens to notice that the left adrenal gland is malformed in her frog. She asks if a problem in embryonic development could have caused that. Although there may be more than one reason, what might you propose as an explanation based on embryonic development?
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The end of a zygote that contains less yolk is the animal pole.
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A) sonic hedgehog
B) sonic chicken
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Which of the following is a process by which an initial set of genes turns on a second set of regulatory genes, which eventually turns on a third set of genes?
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What is the effect of higher concentration of bicoid protein in part of a fruit fly embryo?
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B) It will develop into the heart of the organism.
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Of the choices listed, the first event that occurs during embryonic development is:
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The phase during which embryonic cells arrange themselves into three layers is called:
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B) gastrulation.
C) organogenesis.
D) fertilization.
E) induction.