Answer:
a plant cell
Explanation:
plants are the only ones with cell walls
The correct answer is: c. An operon is a region of DNA that codes for a series of functionally related genes under the control of the same promoter.
Operons contain cluster of genes that are transcribed together into mRNA or are not expressed at all. Formed mRNA undergos splicing to create monocistronic mRNAs so that can be translated separately. Operons are more often found in prokaryotic cells but it can appear in eukaryotic cells and in viruses.
Answer:
Pollution is the presence of harmful materials in the environment of a substance that has harmful or poisonous effects. Nitrogen dioxide (NO2) and Carbon monoxide (CO) are 2 pollutants of air and Industrial Waste and Sewage and Wastewater are 2 pollutants of water.
Answer:
F
Explanation:
all the chromosomes in the nucleus replicate their DNA to make identical copies
i hope that i got it right
Answer: The energy in its chemical bonds must be converted to thermal energy
Explanation: when fuel is burnt, the energy used to bind the molecules chemically are liberated as heat.