Nutrients move through<span> the </span>ecosystem<span> in biogeochemical cycles. A biogeochemical cycle is a circuit/pathway by which a chemical element </span>moves through<span> the </span>biotic<span> and the </span>abiotic factors of an ecosystem. It is inclusive of thebiotic factors<span>, or living organisms, rocks, air, water, and chemicals.</span>
The answer is A.
tRNA brings amino acids in the cytoplasm of a cell to the ribosomes in said cell during RNA translation, allowing the formation of a protein.
The dark plumage help them keep warm by absorbing energy from the sun
The correct answer is option (C) transposons or jumping genes.
Barbara McClintock was an american cytogeneticist. In 1940s, she discovered the phenomenon of transposition brought about by the mobile genetic elements or jumping genes or the transposable elements. These jumping genes refers to a sequence of DNA which can change its position in the genome or the genetic constitution of an organism. She discovered these jumping genes in the Maize for the first time and received the nobel prize in 1983.
Jumping genes form a major portion of the eukaryotic genome. They are often responsible for mutations and associated with the duplication of the genetic material. They also cause the structural changes in the chromosomes like inversion, deletion and translocation which are called the chromosomal aberrations.
Answer:
True
Explanation:
During contraction of skeletal muscle fibers, the thin filaments slide inward toward the A band's center as a result of cycles of crossbridge binding and bending.
