Answer:
A. Move substances down a concentration gradient
Explanation:
Active transport is the process of transport of substances in an energy dependent manner. The process of active transport requires energy to transport the substances against their concentration gradient. This means that active transport moves the substances from the region of their lower concentration to that of higher concentration.
The answer is foreign pathogens.
Answer:
Pigmentation of the skin results from the accumulation of melanin-containing melanosomes in the basal layer of the epidermis. Differences in skin pigmentation result both from the relative ratio of eumelanin (brown–black) to pheomelanin (yellow–red), as well as the number of melanosomes within melanocytes.
Explanation:
Answer:The DNA of bacterial cells is found loose in the cytoplasm. It is called chromosomal DNA and is not contained within a nucleus.
Explanation:
Answer:
Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5). ... However, when eukaryotic cells are not dividing — a stage called interphase — the chromatin within their chromosomes is less tightly packed.
Explanation: Use this website its good for the question you asked or search up the question
https://www.nature.com/scitable/topicpage/chromosomes-14121320/
