Answer:
causes of food poisoning apart from bacteria include viruses, parasites and harmful chemical substance.
Explanation:
causes of food poisoning are
a) Viruses:These are very tiny germs made up of genetic material inside a protein coating
common virus that cause food poisoning is
norovirus and hepatitis A.
b). Bacteria:These are tiny organisms that can cause disease or infection. Bacteria that cause food poisoning include salmonella, Escherichia coli,and campylobacter.
c). Parasite are tiny organisms that live inside other organisms. Parasite can enter the body through food or water. Example of parasite that cause food poisoning is Gardia.
d) Harmful chemical: These maybe present in certain foods including fish, certain types of mushrooms and unwashed produce that contains large amount of certain pesticides
B. enhances leaf growth in plants
C. neutralizes lakes, streams, and oceans
D. damages statues, buildings, and other structures
B. Griffith learned that a chemical changed harmless cells into harmful cells.
C. Chargaff discovered that base pairing was consistent in samples of DNA.
D. Hershey and Chase used bacteriophages to confirm that DNA was the genetic material in genes.
Answer:
c. limiting factor.
Explanation:
The limiting factors are environmental or ecological factors that act directly on the living beings of a population, limiting their size, since these factors determine their birth, mortality, migrations, etc. They are the ones that regulate the growth and expansion of a species.
If environmental factors are optimal for the development of a living being, they favor the growth of that organism in that biotope. But if any of these factors prevents the growth of a species, there is talk of a limiting factor.
Among these physical and chemical factors that determine the biotope include:
- Abiotic factors (do not depend on population density):
Climate:
Light. Only the most superficial organisms access it in water. On land, there is also competition in leafy areas to access it.
Temperature. Some living beings cannot live at the temperature that others live.
Water: It is necessary that it rains or that living beings can access water in order to live. If there is no water, they die.
Atmospheric pressure.
Non-climatic:
Soil factors: The chemical composition of the soil, its pH, salinity, etc. It makes some plant species may or may not survive in it.
Factors of the aquatic environment: The concentration of O2, dissolved CO2, the degree of salinity, the existence of currents, etc., limits the development of some organisms.
- Biotic factors (depend on population density):
Food. If they do not have enough food, the population will have to be smaller.
Interspecific relationships. The number of predators limits the number of prey, and vice versa.
Intraspecific relationships. The relationships established between individuals of the same species can also limit their existence.
Answer:its c
Explanation: on edg
B. Cytoplasm
C. Ribosome
D. Nucleus