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Make the following false statements true.

1. The major categproes in the system of classification iscalled units.

2. When all the organisms in one taxon ome from a single commonancestor, the taxon is considered to be paraphyletic.

3. Analogous structures are those that have a common ancestrybut different applications.

4.The induced-fit model describes muscle contraction.

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Trinidad Tremblay
Trinidad TremblayLv2
28 Sep 2019

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QuestionGroup: #31 Evolution

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31

Which of the below statements is NOT TRUE about human evolution?

A

While the total number of species that existed and the relationships among hominids is still unknown, some of the extinct hominids known today, however, are almost certainly direct ancestors of Homo sapiens.

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Human evolution follows the mechanisms of natural selection.

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Many of the hominid species are close relatives, but not human ancestors.

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Most hominids went extinct without giving rise to other species.

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QuestionGroup: #32 Evolution2

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32

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A

Secondary metabolism

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Darwinian theory of evolution

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Biodiversity

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Lemarkian theory of evolution

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QuestionGroup: #33 Natural selection

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33

Which of the following is considered to be "the most fit "from an evolutionary perspective?

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a tiger who cares for his cubs, two of who live to adulthood.

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a tiger who has a harem of many tigresses and one cub.

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a tiger who is successful at capturing prey but has no cubs.

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a tiger who has many cubs, twelve of which live to adulthood and they subsequently have cubs of their own.

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a tiger who overcomes a new disease and lives to have four cubs.

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QuestionGroup: #34 Natural selection 2

Assigned as

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34

Which of the following is NOT a process of artificial selection?

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(1),(2)

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(1),(2),(3)

C

(1) Variation of traits within individuals

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(2) Variation in some inheritable traits

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(3) Breeders select animals with favorable traits

Unanswered

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QuestionGroup: #35 Evolution & us

Assigned as

Homework

35

For bipedal movement in primates to occur, which anatomical changes had to take place?

A

The spine had to have a characteristic single curve

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Thigh bone slopes outward from the hip to knee, placing feet under the center of gravity

C

The surfaces of the joints in legs and between vertebrae are enlarged

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All of these are true regarding upright bipedal movement

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QuestionGroup: #36 Evolution & us2

Assigned as

Homework

36

Neanderthal hominoids had which of the following characteristics?

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To make art

B

Ability to speak

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Ability to speak, make art, and were bipedal

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Bipedalism

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QuestionGroup: #37 CNS

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Homework

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Increasing the amplitude of a sound wave does what to the sound?

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increases the amplitude

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Increases the harmonics

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Increases the volume

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QuestionGroup: #38 CNS2

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Juan Manuel Marquez delivered a knockout punch to Manny Pacquiao. Manny cannot remember events that happened before the knock-out. What is this an example of?

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Alzheimer's disease

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QuestionGroup: #39 PNS

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Homework

39

The receptor hair cells in the cochlea respond to the frequency and amplitude of sound. Which group of receptors are most sensitive to sound?

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Only those receptors that we normally do not use

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Those that respond to low frequencies

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Receptors respond equally to all frequencies.

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QuestionGroup: #40 Smooth/skeletal

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40

During skeletal muscle contraction where does ATP function?

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Forms the cross bridges

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Attaches to myosin

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Causes the thick filaments to form thin filaments

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Attaches to actin

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