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sveticcg [70]
3 years ago
5

​biologists have cataloged many species that determine the allocation of mating opportunities, food, and other resources, both w

ithin and between groups, by ____
Biology
1 answer:
DIA [1.3K]3 years ago
8 0
Biologist  have  cataloged  many species  that determine  the  allocation opportunities,  food,and  other  resources,both  within  and between  groups,  by  competition . species compete for  resources  available in  the  ecosystem  such food  and  only the  strongest  only   survive and  the  weak  are  disadvantaged in  the ecosystem
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Male northern elephant seals (Mirounga angustirostris) compete with one another for territories along the beach. Males defend th
Ugo [173]

Answer:

Option C

Explanation:

In elephant seals, the male arrive the beach first and start establishing its territory. Once their territory is established female elephant seals starts arriving at the beach and prefer mating with the male who can defend their territory or females in his territory from other males. All females in the territory of specific male mate with the male give birth to their pups and after staying for few months move back into the water.

hence, option C is correct

6 0
3 years ago
An event in which rain-cooled air hits the groumd and spreads out in all directions is called a?
defon
<span>An event in which rain-cooled air hits the ground and spreads out in all directions is called a </span>downburst.
5 0
3 years ago
What would be the best negative control to use when testing for any organic compounds
ra1l [238]

Explanation:

A similar question was asked online, here is the answer it gave:

'“Negative control” is a treatment that by definition is expected not to have any effect (neither positive effect, nor negative effect). “Positive control” is treatment with a well-known chemical that is known to produce the expected effect with the assay that you are studying. Application of an antagonist is not a negative control in your case. “Negative control” is condition that should be treated with the same solutions or buffers as your “treatment” condition, with the only difference that instead of the chemical that you investigate you should add just the solvent that was used to dissolve you chemical in the respective final concentration that you have in the “experimental treatment” condition. For example if your chemical is dissolved in DMSO – than the correct negative control will be to add to the medium/buffer just DMSO in the same final concentration that you reach with your “treatment” condition. One of the reasons of using such negative control is to verify that the solvent is having no effect in your assay. Note that among all treatment conditions (“negative control”, “positive control”, “experimental treatment you are investigating”) the volumes and the composition of the treatments that you are doing should be uniform: always treat with the same volume of medium or buffer, always containing the same concentration of the used solvent (e.g., DMSO). The only difference should be the presence or absence of the defined compound-treatments (agonist, antagonist, the chemical for the experimental investigation etc.).'

My best advice is to use the textbook you have, or use examples of a negative control when testing organic compounds because you have to find something that you can assign, like a worm in a box of dirt, the worm could have enough food to survive, so that is your negative control, but when it comes to finding the best, that would have to rely on something within the parameters of being self sufficient like a plant getting its energy from photosynthesis, etc.

Atanasov, Atanas. (2013). Re: Positive control and negative control. Retrieved from: https://www.researchgate.net/post/Positive_control_and_negative_control/515968f2d039b1fe50000025/citation/download.

7 0
3 years ago
The purpose of the Krebs cycle is to
svp [43]

The Krebs Cycle is involved in cell respiration and produces NADH and FADH2 for the electron transport chain. So your answer would be "<u>Release energy for making ADP</u>".

6 0
3 years ago
Read 2 more answers
What characteristic about the tundra biome is listed below does not contribute to a reduction of carbon dioxide on earth?
ivann1987 [24]
The correct answer of the given question above would be NUTRIENT-POOR SOIL. The characteristic about the Tundra biome listed below that does not contribute to a reduction of carbon dioxide on earth is the nutrient-poor soil. Other choices for this question include permafrost, carbon dioxide sink and <span>plants and their trapped carbon dioxide are frozen in the earth. </span>
7 0
3 years ago
Read 2 more answers
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