2) cell-tissue-organ-organ system
Javier is correct, genes are contained inside a chromosome. In other words, a chromosome contains many genes and a gene is a segment of DNA which provides the code to construct a protein.
Answer:
Producers like plants get their energy from the sun. Consumers get energy from eating producers or other consumers.
Explanation:
Answer:
Each villus, in turn, has thousands of even smaller projections called microvilli (singular: microvillus).
Explanation:
The villi contain capillaries, which are tiny blood vessels. Nutrients are absorbed into these capillaries across the surfaces of the villi and microvilli. Because there are millions of these tiny projections, they greatly increase the surface area for absorption.
Only eukaryotic cells have a nucleus so its dna is in the nucleus but in prokaryotic cells the dna is in the cytoplasm