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Fofino [41]
3 years ago
5

Describe four factors that affect population size

Biology
1 answer:
strojnjashka [21]3 years ago
4 0
Fertility Rate

Mortality Rate

Immigration

Emigration <span />
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It is stated by some evolutionary scientists today that small dinosaurs eventually developed wings from jumping out of trees and
sweet-ann [11.9K]

Answer:

e) Lamarck

Explanation:

Lamarck stated that traits could be acquired due to the use or disuse of a certain structure, for example:  if giraffes were trying to reach leaves this would cause their necks to elongate and the trait would pass onto the next generation in other words organisms could change by what organisms want or need.  In the 1880s, the German biologist August Weismann disproved this theory.

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3 years ago
Which of these types of weathering does not require the presence of water?
julia-pushkina [17]
The answer is oxidation or chemical weathering. There are three main types of weathering, which includes, mechanical weathering, biological and chemical weathering. Mechanical weathering is caused by wind, sand rain, thawing, freezing, and other forces that can physically alter the rock. Biological weathering is caused by the activities of plants and animals as they grow, nests and burrow. Chemical weathering is caused by chemical reactions rather than by mechanical means.
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2 years ago
Cream, butter, whipped cream, sour cream, and cream cheese are best described as _____. members of the milk and milk products fo
Oksanka [162]
These are best described as the members of the milk and milk products. 
Dairy products or milk products are a type of food produced from or containing the milk of mammals, especially cattle, water buffaloes, goats, sheep, camels, and humans. Dairy products include food items such as yogurt, cheese, and butter.
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3 years ago
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Excited about the fungus chemical's promise for treating cancer, you write up your experimental results and send the paper to a
jeka57 [31]

Answer:

All of them

Explanation:

The effect may not be real because we don't know if the results are reproducible: Peers can identify flaws in the experimental design because an experiment must have a clear design in order to be reproducible by other researchers or else they would not have scientific validity.

The treatment kills cancer cells, but it might simply be a poison that kills all cells—even normal cells: It is possible that in the design of the experiment carried out only cancer cells were used but it had not been performed in healthy cells, which would imply the possibility that the fungus kills all the cells.

Cell samples were taken from too few patients: This may be another mistake because when only a small sample is analyzed it is not certain if the fungi are the ones that kill the cancer cells or are other conditions of the analyzed patient.

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3 years ago
An adult male pig's urine contains a chemical substance that accelerates the onset of puberty in female pigs. What is this subst
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The chemical substance in adult male pig's urine, which can also be found in other mammals, is called Puberty Accelerating Pheromone. It is also found in boar's saliva, and was said to be responsible in inducing early puberty in young female piglets.
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3 years ago
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