A student creates a list of characteristics for a human cell and a virus. 1. smaller than an organelle 2. absence of metabolic activity 3. grows by dividing 4. presence of enzymes in the cytoplasm 5. surrounded by a protein coat Which characteristics are associated only with a virus? O 1, 2, and 3 O 1,2, and 5 O 2,3, and 4 O 2,3, and 5

1, 2, and 5

Explanation:

Viruses are pathogenic microorganisms that lack the ability to thrive and reproduce outside of a living host cell. Their structure is simple - they consist of a nucleic acid molecule surrounded by a protein coating and sometimes an outer envelope. They are too small to be seen by a light microscope.

As they are way smaller than living cells, viruses are smaller than organelles as well. They don't have their own metabolism. Their reproduction is not based on division. They don't have any organelles, including the cytoplasm. They are surrounded by a protein coat called the capsid.

Based on this information, we can see that the correct statements are statements 1, 2, and 5.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.