Ascientist is using a microscope to observe a type of bacteria.

which two structures would the scientist most likely see?

nucleus and dna
dna and cell wall
cell wall and vacuole
vacuole and nucleus

cell wall and vacuole

Explanation:

The bacterial cell, being prokaryotic, has no membrane organelles or DNA organized into true chromosomes, such as those of eukaryotes. For this reason, if a scientist is using a microscope to observe a type of bacteria, it is likely that the scientist will initially see the bacteria's cell wall and vacuole.

The bacterial cell wall is a rigid structure that covers the cytoplasmic membrane and gives shape to bacteria. It is a complex structure composed of peptidoglycans - protein-bound carbohydrate polymers. It is the target of many antibiotics, including penicillin and its derivatives, which inhibit the transpeptidase and carboxypeptidase enzymes responsible for the synthesis of peptidoglycans. Contains in infectious species lipopolysaccharide endotoxin (LPS).

Bacterial bacilli are not true vacuoles, as they are not delimited by double lipid membranes like those of plants. They are rather granules of reserve substances, such as complex sugars.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.