Chapter 1: What is Life? Flashcards

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1
Q

What elements are we made of?

A

.

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2
Q

What are the necessary qualifications for life?

A
  • Homeostasis
  • Organization: being structurally composed of one or more cells.
  • Metabolism
  • Growth
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3
Q

What category do viruses fall under and why?

A

Viruses are smaller than cells, but they are NOT the smallest unit of life.
Don’t meet the qualifications because they aren’t able to harness energy from the environment.

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4
Q

What is the basic unit of life?

A

CELLS: the simplest self-replicating entity that can exist as an independent unit of life.

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5
Q

Where does the energy to support life come from?

A

The sun

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6
Q

What are the essential features of a cell?

A

.

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7
Q

What is the scientific method and how does it work?

A

Observation -> hypothesis -> predictions -> experiments (or new hypothesis) -> theory

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8
Q

Understand the concepts of evolution and variation.

A

Variation: can be genetic or environmental. Its source is mutation.
Changes for the organisms benefit will be passed down to the next generation, helping the species improve and evolve over time.

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