The right option is; -the single layer membrane surrounding the outside of the cell allows for the easy removal of waste
The cell membrane is a biological membrane that surrounds a cell and separates the contents of the cell from its external environment. The cell membrane is composed of lipids and proteins and its main function is to protect the cell from its surroundings. The cell membrane also controls the molecules that enter and leave cell.
Answer:
The scientific notation is 4.0075 x 10^7 m
Explanation:
In this case, the Earth's circumference at the equator which is equal to 40,075,017 m can be expressed in terms of scientific notation by multiplying it to a factor of 10.
The deer population will decrease
The correct answer is option a. only 10 percent of the energy at each trophic level is passed on to the next level.
The producers obtain their energy from the sunlight and convert it into usable form of energy for consumers. The primary consumers eat the plants, and obtain energy from the plants. On each trophic level, only 10 % energy is transferred to the succeeding one.
As only 10% of the energy is transferred to the next trophic level, the primary producers need to eat more plants in order to meet their energy requirement. This insufficiency of the energy transfer from one trophic level to another causes the decrease in the biomass on next level.
1. to ensure continuity and preservation of genetic material.
2.semi conservative
3.a DNA polymerase : unzip the DNA strand.
b Helicase : unwind dna strand
4.during the s stage of interphase
5. Nucleus
