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Civil War > Biology- Ch 1 > Flashcards

Biology- Ch 1 Flashcards

1
Q

What do biologists study?

A

Bacteria to very large organisms

How much to exercise
How to avoid getting sick
Air, land and food supply

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2
Q

What are the 7 characteristics of life?

A

Organization, presence of one or more cells, response to stimulus, homeostasis, metabolism, growth and development, reproduction, and change thought time

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3
Q

What is a cell?

A

The smallest unit that can perform all life’s processes.

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4
Q

What does unicellular mean?

A

Any living thing made up of one cell

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5
Q

What does multicellular mean?

A

Any living thing made up of multiple cells

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6
Q

What is an autotrophs?

A

Anything that obtains energy from sunlight

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7
Q

What is a heterotroph?

A

Obtain energy by consuming organisms

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8
Q

What are organ systems

A

Groups of specialized parts that carry out a certain function in the organ

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9
Q

Organ?

A

Structures that carry out specialized jobs

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10
Q

Tissues?

A

Groups of cells that have similar abilities and that allow the organ to function

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11
Q

Organelles?

A

Tiny structures that carry out functions necessary for the cell to stay alive.

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12
Q

Biological molecule?

A

Chemical compounds that provide physical structure and bring about movement, energy use and other cellular functions.

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13
Q

Atom?

A

Smallest particle of an element that retains all the properties of a certain element

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14
Q

What does response to stimulus mean?

A

A physical or chemical change in internal or external environment–response

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15
Q

What is homeostasis?

A

The maintenance of a stable level of internal conditions even though environmental conditions are changing

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16
Q

Asexually

A

Identical

17
Q

Sexually

A

Combination of different DNA

18
Q

What is metabolism?

A

Sum of all the chemical reactions that take in and transform energy and materials from the environment

19
Q

What is cell division…why?

A

The formation of two new cells from an existing cell. WHY? FOR GROWTH

20
Q

What is development?

A

The process by which an organism becomes a mature adult

21
Q

What are genes?

A

A short segment of DNA

22
Q

3 Domains of Life?

A

Bacteria, Archaea, Eukarya-protists-plants-fungi-animals

23
Q

Independent variable

A

Manipulated, I control

24
Q

Dependent variable

A

Measured

25
Q

Constant

A

Conditions kept the same

26
Q

Control group

A

Point of comparison

27
Q

Diversity

A

Differences among living organisms

28
Q

Unity

A

Features that all living things have in common

29
Q

Evolution

A

Occurrence through natural selection

30
Q

What is biology?

A

The study of life

31
Q

Scientific Method

A

Observing, forming a hypothesis, testing, analyzing data, evaluating results—repeat

Civil War (12 decks)

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