11.
Choose the best answer.
Which level of organization is blood?
cell
organ
organ system
tissue
12.
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What happens during prophase?
the nucleus disappears
chromosomes move to the edges
cell life cycle
cells reproduce
13.
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What is the function of the mitochondria?
packaging proteins
energy
control mechanisms
reproduction
14.
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Contractions during labor are feedback mechanism.
positive
mitotic
negative
meiotic
15.
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Simple epithelial tissue has layer(s).
two
one
three
four
16.
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Which is NOT a classification of muscle tissue?
dense
cardiac
skeletal
smooth
17.
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How does a positive feedback loop respond to a variable?
changes the stimulus
makes no change
increases the stimulus
stops the stimulus
18.
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Lysosomes are responsible for .
waste removal
control mechanisms
reproduction
packaging proteins
19.
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An overgrowth of cells is called .
cytokinesis
meiosis
cancer
disease
20.
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What is the receptor’s role in the homeostatic control mechanisms?
determines the best response
sets the control point
sends the message to the variable
recognizes the variable
Answers: 2
Biology, 21.06.2019 16:30
Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.
Answers: 1
Biology, 22.06.2019 10:00
Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.
Answers: 1
Biology, 22.06.2019 13:30
What is used as a template during replication? a- mrna b- trna c- rrna d- dna
Answers: 1
Biology, 22.06.2019 15:40
Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation
Answers: 1
11.
Choose the best answer.
Which level of organization is blood?
cel...
Choose the best answer.
Which level of organization is blood?
cel...
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