<span>Biotic factors are the living components of an
ecosystem. They are sorted into three groups: producers or autotrophs,
consumers or heterotrophs, and decomposers or detritivores.</span>
Answer:
2. Circular, looped, folded, single stranded DNA known as the bacterial chromosome
Explanation:
The bacterial chromosome of a prokaryotic cell, does not occur in the typical X chromosome found in eukaryotic cells, but it is a long folded and looped molecule composed of double-stranded supercoiled DNA. In this case, DNA occurs freely and covalently closed in a circular shape in the cytoplasm and it does not bind with proteins.
Abiotic factors are anything nonliving that help biotic, or living things. Abiotic features include wind, water, ice, sand, rocks ,or even things such as temperature. They are nonliving things. Biotic includes all things living such as humans, plants, and animals. All biotic things rely on nonliving abiotic features to survive.
According to the research, the primary purpose of membrane channels is to circulate ions, and of membrane pumps is to maintain differences in ionic concentration.
<h3>What are membrane channels and pumps?</h3>
They are pores in the cell membrane through which ions circulate for muscle contraction or membrane potential changes that may depend on a ligand or voltage, depending on whether their opening is determined by the binding of a ligand or by changes of voltage.
In this sense, membrane pumps is the mechanism of active ion transport, consuming energy across a membrane against an electromechanical gradient to maintain differences in ion concentration between the intracellular and extracellular space.
Therefore, we can conclude that according to the research, the primary purpose of membrane channels is to circulate ions, and of membrane pumps is to maintain differences in ionic concentration.
Learn more about membrane channels and pumps here: brainly.com/question/11090806
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Answer:
Except alleles
Explanation:
Alleles are different versions of the same gene and that's because they have different DNA, even though it is slightly different it can make a lot of changes so that's why they have different alleles.
Allele is actually the variant form of some genes.
The best<u> example </u>for alleles we can find in the gene for blossom color in some species of flowers or plants. Only one single gene is controlling the color and we can see sometimes different versions of it. Those different versions are called Alleles.
