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Biology 161 > Exam 1 > Flashcards

Exam 1 Flashcards

1
Q

What are the basic Characteristics that are common to all living things?

A
  • Organized from the atom to the Biosphere.
  • Use materials and energy from the environment
  • Maintain a relatively consistent internal environment.
  • Respond to internal and external stimuli
  • Reproduce and grow
  • Have an evolutionary history
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2
Q

List the levels of the organization of life from smallest to largest

A

Atom-Molecule-Organelles-Cell-Tissue-Organ-Organ System-Organism-Population-Community-Ecosystem-Biosphere

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3
Q

Explain why the study of evolution is important to understanding life.

A

Evolution has been going on since life began and with the study of evolution we are able to see how living things have adapted to environmental changes. This will prove true because if you cant adapt than natural selection will kill you off.

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4
Q

What domain are humans in?

A

Eukarya

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5
Q

What kingdom are humans in?

A

Animalia

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6
Q

What Phylum are humans in?

A

Chordata

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7
Q

What Class are humans in?

A

Mammalia

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8
Q

What Order are humans in?

A

Primates

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9
Q

What Family are humans in?

A

Hominidae

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10
Q

What Genus are humans in?

A

Homo

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11
Q

What species are humans in?

A

sapiens

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12
Q

Describe the relationship between humans and the biosphere, and the role of culture in shaping that relationship

A

we make Modification of our environment for our own purpose which may threaten the biosphere

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13
Q

Describe the general process of the scientific method.

A

First you observe what it happing at the moment. Then you form an hypothesis as to what will be the outcome. Finally you run the experiment and come up with a conclusion.

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14
Q

Distinguish between neurons and neuroglia cells.

A

Nervous tissue - neurons
• They are made of dendrites, a cell body, and an axon.
Nervous tissue - neuroglia
• They are a collection of cells that support and nourish neuron

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15
Q

Describe the structure of a neuron

A

have dendrites a cell body and an axon. The dendrites carry info towards the cell while axons carry information away

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16
Q

State the role of epithelial cells in the body.

A

It lines body cavities, covers body surfaces, and is found in glands. (can also be modified to carry out secreation, absorbtion, ecertion and filtration.

17
Q

What are the three types of muscle?

A

Smooth, Skeletal, Cardiac.

18
Q

What is the appearance, location, and nature of the smooth muscle?

A

Appearance: spindle-shaped cell with one nucleus, lacks striations
Location: walls of hollow organs and vessels
Nature: involuntary movement

19
Q

What is the appearance, location, and nature of the skeletal muscle?

A

Appearance: long, cylindrical cells, multiple nuclei, striated fibers
Location: attached to bone for movement
Nature: voluntary movement

20
Q

What is the appearance, location, and nature of the cardiac muscle?

A

Appearance: branched cells with a single nucleus, striations with darker striations called intercalated disks between cells
Location: heart
Nature: involuntary movement

21
Q

What are the four types of tissue?

A

Connective, Muscle, Nervous, and Epithelial

22
Q

What is the function of connective tissue?

A

It binds and supports parts of the body.

23
Q

What is the function of muscle tissue?

A

It helps allow movement in the body.

24
Q

What is the function of nervous tissue?

A

It allows for communication between cells through sensory input, integration of data, and motor output.

25
Q

What is the function of Epithelial tissue?

A

It lines body cavities, covers body surfaces, and is found in glands

26
Q

Describe the stages of the ATP cycle.

A

Energy from cellular respiration is used to produce ATP then the energy from ATP is broken down and used for metabolic work..

Biology 161 (1 decks)

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