Answer:
The correct option is D. Drug-resistant populations of microbes arise when exposure to drugs selectively kills sensitive cells, allowing overgrowth of resistant cells.
Explanation:
Drug- resistance can be described as a mechanism through which an organism can overcome the effect of a drug.
Usually, exposure of a drug again and again to a population of microbes will make the microbes resistant to that drug. The cells of the microbes undergo some change to overcome the effect of that particular drug.
A population of drug-resistant microbes might occur when the sensitive microbes get killed by the drug and resistant strains remain alive.
Answer:
The two factors are: moderate temperature and energy source.
Explanation:
A biosphere is that portion of the earth where life occurs which means it consists of water, underground, land, and air. On earth, life can be seen at the bottom of the ocean to 9 km above the earth.
The two major factors that confine living thing to the biosphere is the energy source and moderate temperature. Energy is required by all the organisms present on the earth. Every organism has its own way to gain energy like some gain energy from the sun and some from consuming others.
Moderate and constant temperature is important for the survival of the organisms and to maintain homeostasis in them.
Uranium-235 is the answer
Answer: 2. The phenotype would be 100 percent pink.
3. All flowers would have Red and White phenotype. in other words, both colors would appear on the flower with little to no mixing of the colors.
Explanation:
Answer:
To make sure that the experiment is accurate, the scientist must make carry out an appropriate observation, which would lead to the formation of good hypothesis. Good experimental method is an other criteria to look forward for the accurate experimental results. Methods are applied in collection of data and other things and in compiling results using statistical methods to carry out an accurate experiment.
