Chap1 The Scope of Biology

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Chapter One test

Soil, Air, Water, Light

4 Non-living features found in the ecosystem

population

A group/herd/flock of similar living things found in an ecosystem.

cells

The basic units of all living things.

nucleus

The cell part that directs all the activities of a cell.

DNA

The chemical responsible for the passing of traits from parents to offspring.

Genes

The units of information found along the length of DNA.

species

The name biologists gave to a distinct form of life.

Domain

The broadest category of organisms.

Taxonomy

The branch of biology that is concerned with the study of classification.

3 Domains

Bacteria, Archaea, Eukarya

One

The number of cells that bacterium have.

Unicellular

Word that means, "one cell".

Prokayotic Cells

Cells that contain no nucleus.

4 Kingdoms of Eukarya Domain

protists, fungi, plants, and animals

True of all eukaryotic cells

They are all multicellular.

Cells

Thing that all organisms are made of.

Organ

When various tissues work together they form, what?

Photosynthesis

The process by which plants make their own food.

3 biological activities that require energy

Moving, thinking, keeping your heart beating

Producers

Organisms that make their own food.

Consumers

Organisms that must eat the food made by other organisms.

Heat

The form that organisms return energy back into the environment.

Homeostasis

The mechanism by which organisms regulate their internal environment.

Sweating and Shirvering

Examples of the homeostasis mechanism.

Adaption

An inherited trait that helps organisms survive and reproduce.

Live longer and constantly reproduce

Two ways in which adapt benefit organisms.

Yes

There is solid evidence of natural selection.

Stem cell, research and cloning

Two ethical issues that relate to biology with which society wrestles.

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