They differ from the number and types of organelles they contain
Answer:
a) Toxic (gases)
d) Bacterial
Explanation:
Septic tanks are underground structures usually built with concrete or plastic in which wastewater is treated. These tanks are generally used in rural areas and are located near bathrooms and laundry rooms.
If a septic tank is working correctly, it should produce any unpleasing smell. However, when an individual perceives a certain strong bad smell it could be due to the presence of gases (low levels of hydrogen sulfide and high levels of carbon dioxide, and methane) and anaerobic microorganisms such as sulfur bacteria which also produce methane and, therefore, strong smell.
It all depends of what kind of bad smell is the person perceiving. For example, the smell of "rotten egg" is usually due to microbial pollution and gases. Although these gases are not toxic in low levels, they could become highly toxic. It is extremely important to pay attention to smell and give the appropriate mainteinance.
Answer: bacterial species of the genera Staphylococcus, Streptococcus, Enterococcus, Klebsiella, Enterobacter, and Neisseria.
Explanation:
D
Freshwater;
- It constitutes approximately 30% of Earth's freshwater.
- It is the only viable source of freshwater in some areas.
- It is available in conditions of drought.
Explanation:
Groundwater is water that is located under the surface of the earth in the rocks of the crust usually filled by the percolation of water from precipitation. During drought, when all surface waters have dried up, wells can be dug to access groundwater in aquifers. This groundwater is also important in regions where surface waters have been contaminated such as by industrial waste. However, it is important that this water is not overdrawn. The rate at which it is drawn should match the rate at which the waters are refilled by percolating water into the ground.
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I believe the correct answer from the choices listed above is option 2. The polymer that is responsible for your inheritance is DNA. It stands for deoxyribonucleic acid. It is a molecule that carries <span>the genetic instructions in a cell.</span>
