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Snezhnost [94]
3 years ago
6

What do biologists use to establish whether or not two organisms are of the same species?

Biology
2 answers:
sesenic [268]3 years ago
7 0

Answer:

D. all of the above

Explanation:

<em>A species is a group of organisms that are capable of interbreeding to produce fertile progeny.</em>

Organisms of the same species are usually have similar genome in form of DNA and protein. They are also similar morphological and structurally.

<em>Hence, scientists compare DNA/protein, appearance, and structure to establish whether or not two organisms are of the same species.</em>

The correct option is D.

AVprozaik [17]3 years ago
3 0

D all of the above

biologist well study the animals appearance, it's genetics composition from other organism, and their vestigial structures.

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Match the following. 1. the basic building block of all forms of life resolving power 2. the idea of Schleiden and Schwann that
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Answer:

1. Cell

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3. Organismal theory

4. resolving power

Explanation:

The cell is the smallest known unit of all living organisms. They are called the building blocks of life. An organism can be unicellular (made up of one cell) or multi-cellular (made up of many cells).

2. Cell theory was formulated and developed  by Schleiden, Schwann, and Virchow. They are considered as the basic principles of biology.

It states:

1. Living organisms are made up of cells.

2. Cells are the basic unit of life.

3. Cells are formed from pre-existing cells.

4. Energy flows inside the cell.

5. DNA is passed on from cell to cell.

6. All cells have the same basic chemical composition.

3. Organismal theory is the intended counter-argument of the cell theory. It was developed by Reichert, Strasberger, Sherrington, and Pavlov. It argues that the basic unit of life is the organism itself, suggesting that an organism came about from a cell that expanded.

4. Resolving power is the ability of an optical instrument like a microscope or a telescope to view objects that are close together as separate, abling the viewer to distinguish the two from each other.

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3 years ago
Scientists distinguish whether an entity is living or nonliving by describing the _____ of life.
Orlov [11]
Characteristics should be in the blank
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Nataly [62]

Answer:

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Explanation:

Ptolomy's model of the solar system was geocentric, where the sun, moon, planets, and stars all orbit the earth in perfectly circular orbits. The problem with perfectly circular orbit around the Earth is that they do not explain the occasional backward motion, or retrograde motion, of the planets.

The Greeks insisted that the motion of the planets be perfectly circular. Ptolemy modeled the planets making small circles around a point that orbited the Earth. These smaller circles were called epicycles, and they allowed the planets to move backward relative to the background stars.

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2 years ago
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