Sciens Dichomentis Flashcards

1
Q

Prokaryotic

A

a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.

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2
Q

Eukaryotic

A

An organism whose cells contain a nucleus surrounded by a membrane and whose DNA is bound together by proteins (histones) into chromosomes.

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3
Q

Unicellular

A

consisting of a single cell.

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4
Q

Multicellular

A

(of an organism or part) having or consisting of many cells.

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5
Q

Autotrophic

A

an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

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6
Q

Heterotroph

A

A heterotroph is an organism that cannot produce its own food

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7
Q

sexual reproduction

A

the production of new living organisms by combining genetic information from two individuals of different types

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8
Q

Asexual reproduction

A

Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes

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9
Q

Stimuli

A

a thing or event that evokes a specific functional reaction in an organ or tissue.

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10
Q

Homeostasis

A

the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.

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11
Q

Evolution

A

the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

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12
Q

Classification

A

the arrangement of animals and plants in taxonomic groups according to their observed similarities (including at least kingdom and phylum in animals, division in plants, and class, order, family, genus, and species).

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13
Q

Taxonomy

A

the branch of science concerned with classification, especially of organisms; systematics.

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14
Q

Cell

A

the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.

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15
Q

Tissue

A

any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products

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16
Q

Organ

A

a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.

17
Q

Organ system

A

An organ system is a group of organs that work together to perform a certain function in an organism’s body

18
Q

Organism

A

an individual animal, plant, or single-celled life form.