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Oxana [17]
2 years ago
10

HELP ASAP! ILL GIVE BRAILIEST TO THE 1ST ANSWER! NO SPAM!

Biology
1 answer:
slega [8]2 years ago
5 0

Answer:

Autotrophs (producers) synthesize their own energy, creating organic materials that ... that are found in rare ecosystems where sunlight is not available, such as in those ... A biomass is the total mass of living and previously-living organisms within a trophic ... Ecological efficiency: the transfer of energy between trophic levels.

Explanation:

I has no idea if that helped or not

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An organelle that appears as a stack of flattened membranes; it modifies, sorts, and packages proteins and other materials from
inna [77]
The answer is probably A. Golgi apparatus
4 0
3 years ago
A person who has allergies has a compromised immune system because the body's immune system
marusya05 [52]

Answer:

Overreacts to an antigen.

Explanation:

Thats what an allergy is if you think about it

4 0
3 years ago
If a molecule of DNA has 30% Adenine how much of the other bases will be present?
anygoal [31]

Answer:

If a DNA molecule has 30% Adenine the percentage of the other bases is Thymine: 30% Cytosine: 20% Guanine: 20%.

Explanation:

When the percentage that a base has in a DNA molecule is given, the percentage of the other bases can be known using the Chargaff's base pair rule.

A DNA molecule has the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.

Chargaff was able to establish that in a DNA molecule the ratio of purine : pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, taking into account the complementarity of bases.

Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:

  • <em>Adenine 30%. </em>
  • <em>Thymine 30%. </em>
  • <em>Cytosine 20%. </em>
  • <em>Guanine 20%. </em>
  • <em>Total ..... 100% </em>

In this case, the <u>Chargaff rule is useful to determine the percentage of nitrogenous bases that exist in a DNA molecule, knowing the percentage of a single base</u>.

7 0
2 years ago
Please help me this assignment is due at 9
inessss [21]

Answer:

The cell pictured in the diagram is a plant cell because there is are chloroplasts. Chloroplasts are located in plant cells and not in animal cells. Chloroplasts are where photosynthesis occurs, and photosynthesis does not occur in animals.

3 0
2 years ago
Evidence for coordinated stasis is found in ____.
KonstantinChe [14]

The correct answer is option (A) the fossil record.

Coordinated stasis refers to the stasis or the no evolutionary changes in the organisms for millions of years, which is followed by extinction and formation of the new species.

Fossil records have the evidence of ecological and evolutionary stability in the species over a long period of geological time scale separated by intervals of abrupt change. The best example of this being the animals of the Middle Devonian Hamilton group. Thus, fossil record is the only source of record showing this long period of stasis and separated by periods of abrupt changes in the species due to environmental pressures.

8 0
2 years ago
Read 2 more answers
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