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JulsSmile [24]
3 years ago
6

What prevents organisms from reproducing an unlimited number of offspring?

Biology
1 answer:
zubka84 [21]3 years ago
8 0

Answer:

Human Hunting

Natural predators

Old age

diseases

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What are the three components of cell theory
Bezzdna [24]
1. All known living things are made up of one or more cells.
2. All living cells arise from pre-existing cells by division.
3. The cell is the fundamental unit of structure and function in all living organisms.

I hope that this helps you !
5 0
3 years ago
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What forms between a positive and negative ion
xxTIMURxx [149]

Answer:

An ionic bond.

Explanation:

A strong electrostatic force of attraction will develop between the oppositely charged ions. For example, sodium chloride (salt) is essentially made of a positively charged sodium ion and a negatively charged chloride ion.

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3 years ago
Scientists base many of their investigations on questions that test accepted theories. Which outcome of an investigation would c
Fynjy0 [20]

When you expect something, but get something else, you have a reason big enough to ask new questions and start a new investigation.


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If you create a tree by artificially breeding different species, and then plant it with certain expectations in width, size, bark width, leaf shape, etc. and things go differently, a new investigation might begin with a whole new load of questions.


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\boxed{\bf~The~answer~is~most~likely~A.}



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4 0
3 years ago
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what effect does the presence of existing soil in secondary succession have on the amount of time it takes to return to the clim
bezimeni [28]
The primary succession takes a long time to be done. the secondary succesion takes 200-500 years for completion. the secondary succession occurs in an area which has been denuded recently and lately inhabited. soil is present at the beginning of the secondary succession with some organisms. thank you for this question.
7 0
3 years ago
A microbiologist plated a bacterium on a specific medium. After incubation, she noted that the previously yellow medium was now
alexdok [17]

Answer:

A differential medium

Explanation:

Bacteria require nutrients for growth, and in order to culture (grow) them and study their characteristics, different types of media are used.

A selective media is used to grow a particular group of organism while suppressing another. So a selective media usually has an inhibitory agent, which will inhibit the growth of the undesired group. An antibiotic can be added to a medium to make it selective.

A general purpose medium as the name implies can be used to grow any group of bacteria. It has no inhibitory agent and indicator that differentiates between organisms. An example of general purpose media is nutrient agar .

A non-synthetic media is made from natural ingredients.

A differential media differentiates between groups of organisms. Example of differential media is MacConkey agar and Mannitol Salt agar. On MacConkey agar, lactose fermenting bacteria turn pink while non-lactose fermenting bacteria are colorless.

On Mannitol Salt agar, mannitol fermenting bacteria turn yellow while non-mannitol fermenting bacteria are colorless. Mannitol Salt agar is also a selective medium. It has a high salt concentration which inhibits certain organisms.

6 0
3 years ago
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