Answer:
Explanation:
Decreases because the number of predators increases
Answer: Decreases because the number of predators increases
Explanation: i took the test
b. stabilizing selection
c. a mechanism of evolution
d. directional selection
Regular distribution is observed for many organisms due to _______.
a. the need to maximize exposure to sunlight
b. the need to avoid predators
c. interactions between individuals
d. the plentiful availability of water
Natural selection is the differences in survival and reproduction as the consequence of differences in phenotypes. According to Darwin's theory of evolution, natural selection is the only factor that affects a frequency of different variations and it is the only mechanism of evolution.
Q2. The answer is c. interactions between individuals.
Organisms interact with other organisms or abiotic factors in some system. The interaction between individuals affects their regular distribution. For example, if two groups are in competition for resources, to maximize resource utilization, they will probably live in different areas or will defend territory. Also, some symbiotic organisms are expect to be distributed similarly.
Answer:
Questions 1 & 2 Are C
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gasoline?
A. copper
B. zinc
C. palladium
D. lead
Finally, in 1972 the U.S. Environmental Protection Agency announced that leaded gasoline would be phased out.
Petroleum-derived combination of flammable, volatile liquid hydrocarbons used as fuel for internal combustion engines; often spelled gasolene, gas, or petrol.
Additionally, it serves as a fat and oil solvent. Because of its high energy of combustion and ability to mix easily with air in a carburetor, gasoline—originally a byproduct of the petroleum industry, with kerosene being the main product—became the favored fuel for automobiles.
Not specifically to combat lead poisoning but because lead was known to interfere with new smog-reducing catalytic converters that from 1975 would be built into new cars.
Therefore, Finally, in 1972 the U.S. Environmental Protection Agency announced that leaded gasoline would be phased out.
To learn more about Gasoline, refer to the link:
#SPJ2
Answer:
the lead phase out in united state of American
a. cause inflammation
b. make your mucous membranes watery
c. produce antibodies
d. eat dead cells
2) Why do doctors recommend that people get a new flu shot every year?
a. the flu virus becomes immune to the vaccine
b. the vaccine wears out over time
c. your body eliminates the vaccine
d. the flu virus changes every year
3) Antibodies do which of the following?
a. attach to cells with corresponding antigen
b. engulf and destroy pathogens
c. produce antigens
d. produce immature cells that become B cells
I keep getting a D, so if you could kind of explain it to me as well, that will be great.
B cells produce antibodies (option C), whereas doctors recommend that people get a new flu shot every year because the flu virus changes every year (Option D).
Mutation refers to any type of alteration of the genetic material (DNA) in the genome of an organism or virus.
In conclusion, B cells produce antibodies (option C), whereas doctors recommend that people get a new flu shot every year because the flu virus changes every year (Option D).
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b. adaptation
c. organism
d. ecosystem
The type of RNA that carries genetic information to the site of protein synthesis is messenger RNA or mRNA in short.
The first step for this to occur takes place in the nucleus of the cell in a process called transcription. In this process, the genetic information for the synthesis of a particular protein is copied onto mRNA, in a triplet base format and it is in code,
mRNA then leaves the nucleus and enters into the cytoplasm of the cell where it attaches itself to a ribosome. A ribosome is the site where proteins are synthesized and is also nicknamed the "work bench" of the cell.
Another type of RNA called tRNA then reads the coded information on the attached mRNA and recognizes a triplet of bases on it and decodes the information. This process is called translation. tRNA then fetches the amino acid that corresponds to that triplet of bases from the cytoplasm and into the ribosome where the amino acid is linked to others to form a chain and thus a protein.