Answer:
They can be harmful.
Explanation:
Prokaryotes are the organism that do not have nucleus and lacks the membrane bound organelle. Eukaryotes have well defined nucleus and contains the membrane bound organelle.
Th prokaryotes includes the small bacteria and other small organism. The bacteria can cause harmful disease in humans. They can cause cancer or can mutate the genetic constitution of the organisms. The prokaryotes can destroy the products that are harmful and their consumption can destroy the human health.
Thus, the correct answer is option (3).
The answer is Both are needed for cells to store energy.
Unlike natural selection, genetic drift does not depend on an allele’s beneficial or harmful effects. Instead, drift changes allele frequencies purely by chance, as random subsets of individuals (and the gametes of those individuals) are sampled to produce the next generation.
Every population experiences genetic drift, but small populations feel its effects more strongly. Genetic drift does not take into account an allele’s adaptive value to a population, and it may result in loss of a beneficial allele or fixation (rise to 100\%100%100, percent frequency) of a harmful allele in a population.
The founder effect and the bottleneck effect are cases in which a small population is formed from a larger population. These “sampled” populations often do not represent the genetic diversity of the original population, and their small size means they may experience strong drift for generations.
Answer:
Pros: Power stations fuelled by fossil fuels or nuclear fuels are reliable sources of energy. This means they can provide power whenever it is needed. The fuel for nuclear power stations is relatively cheap.
Cons: Fossil fuels took millions of years to form in the Earth's crust, and can will be replaced in a very long time after being used. If we keep using these fuels they will eventually run out. Oil and gas will be the first to run out and then coal. When fossil fuels burn, they release carbon dioxide into the atmosphere. Research shows that a major contributor to the green-house effect and global warming is our overuse and burning of fossil fuels. Coal and gas also release sulphur dioxide gas when they are burned. Sulphur dioxide can cause breathing problems for living creatures and is also a major part of acid rain. The power stations themselves are expensive to build.t is also very expensive to dismantle old nuclear power stations and to store their radioactive waste, which is a dangerous health hazard.
Explanation:
Non-renewable energy, unlike renewable energy, is energy that comes from sources that will run out. They will not be replenished in our lifetimes, or even in multiple lifetimes. The most common non-renewable energy resources are fossil fuels. An example of these are coal, petroleum, and natural gas. Carbon is the main element in fossil fuels.
Answer:
B-They contain genetic material.
Explanation:
They are not made out of cells. They don't reproduce by mitosis(Only cells reproduce by mitosis).
Only specialized plant cells contain chlorophyll.
They do have genetic material which could be DNA or RNA.