Answer:
Explanation:
DNA polymerase
Use of radioactive deoxyribonucleotides as raw material for DNA synthesis makes DNA polymerase to use these radioactively labeled dNTPs to make new DNA strands. Hence, DNA polymerase enzyme can make radioactively labeled DNA by using radioactive deoxyribonucleotides as raw material.
(B) Separation of homologous chromosomes
(C) Crossing over
(D) Separation of sister chromatids, with one chromatid pulled toward each pole
(E) Assembly of chromosomes along the equatorial plane
B) are heterotrophs.
C) consume organisms located above them.
D) are heterotrophic, primary consumers.
The base of the pyramid is built from organisms that are primarily autotrophs, which is option A, as autotrophs are organisms that produce their own food using energy from the sun or from inorganic substances, such as certain types of bacteria that use chemosynthesis.
The base of the pyramid in an ecological pyramid is built from organisms that are primarily autotrophs. Autotrophs are organisms that are capable of producing their own food using energy from the sun or from inorganic compounds. They are also known as primary producers, and they form the base of the food chain in most ecosystems. Examples of autotrophs include plants, algae, and some bacteria. As the base of the pyramid, autotrophs support all other organisms in the ecosystem as they provide the energy and nutrients necessary for their survival.
Hence, the base of the pyramid is built from organisms that are primarily autotrophs, which is option A, as autotrophs are organisms that produce their own food using energy from the sun or from inorganic substances, such as certain types of bacteria that use chemosynthesis.
Learn more about the autotrophs here.
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