The group of organisms that occupy the second trophic level of an ecosystem is the herbivores
Answer:
What are viruses?
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.
How are they different from bacteriophages?
Virus: ↑ A type of microbe that can infects cells. Human viruses infect human cells, plant viruses infect plant cells, etc. Bacteriophage: ↑ A virus that infects bacteria, also called a phage. DNA: ↑ The molecule that carries all the information in the form of genes needed to produce proteins.
Answer:
regulates other proteins
Explanation:
Ubiquitin is a small protein that is found in almost all cellular tissues in humans and other eukaryotic organisms, which helps to regulate the processes of other proteins in the body.
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Answer:
Mutations and crossing over during sexual reproduction
Explanation:
Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Genetic variation can be a result of sexual reproduction during when chromosomes crossover during Meiosis I, which leads to the creation of new combinations of genes.
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