DNA content in a cell is measured in picograms (pg) (what ever that is) . A sea star has 17/20 pg of DNA a scallop cell has 19/20pg, a red water mite cell has 0.19 a mosquito cell has 0.24 what is the biggest and the smallest amount?

Answers

Answer 1

Answer: This is not Biology, it's math. You have too do what you did on the other problems which is convert them all too decimals using a calculator. Make sure too write them down and them just find which number is more or less.

Answer 2

Answer:

Answer:

idk but probably mosquito cell

Explanation:

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Which term best describes the expression 137 rabbits per km2?a. exponential
b. density
c. biome
d. size

Answers

b. density

Km^2 (kilometers squared) is an area of land, so 137 rabbits per km^2 describes the density of rabbits in a given area

Km^2 does have an exponent, but "exponential" has nothing to do with 137 rabbits. A biome is a type of landscape, merely knowing the density of rabbits would not tell the biome. This expression counts the number of rabbits within an area, not just the size of rabbits or size of land area.

Answer: The answer is b. density

Explanation: I took the test off of k12 and it was correct.

Which of the following is a true statement about the flow of energy in an ecosystem?a. Smaller organisms need less energy per gram of body weight than do larger organisms.
6. Energy transfer between organisms normally involves conservation of heat energy.
C. Energy is lost between trophic levels.

Answers

Energy is lost between trophic levels.

Answer: Option C

Explanation:

The source of energy for all organisms is the Sun. The Tropic levels exhibit the flow of energy in an ecosystem. The flow of energy is always in one direction. The energy level decreases crossing each trophic level as energy is lost in the form of heat.

Primary producers are the first in Trophic level, The Herbivores fall in the next level , the Carnivores form the next level and the decomposers are the last in the trophic level. The decomposers decompose all the living organisms and convert to nutrients that are available in the soil. The plants take up this nutrient and hence this is a cycle.

Why can't plants and animals use the nitrogen directly from the atmosphere?Answer
A.There is not enough of it in the air.
B.Nitrogen gas contains the element in an inert, unusable state.
C.They do use it directly from the atmosphere.
D.Plants and animals do not need nitrogen for their life processes.

Answers

The answer is C, because of the nitrogen cycle.

I would think it is B...

Describe the following phases of mitosis. a) prophase

b) metaphase)

c)anaphase

d) telophase

I need help!

Answers

Prophase: Replication of chromosomes and chromosome become visible x shapes.

Metaphase: Chromosomes align at the equator of the cell and spindle fibers attach to each sister chromatid.

Anaphase: Spindle fibers pull the sister chromatids away from each other to the opposite sides of the cell.

Telophase: New separate nuclear membranes form around the different sets of chromosomes and the chromosomes unwind, the spindle fibers start breaking down and and the cell begins to pinch together to separate into two new cells.

Ladies and gents this has been Mitosis.

Does natural and sexual selection also apply to the species of man? Motivate, positive and negative consequences.

Answers

Answer:

Yes, natural and sexual selection also apply to the species of man with modification.

Explanation:

The process of selecting the member for the biological sex to produce their generation and offspring is known as the sexual selection. It is a natural and continuous process.
It has been seen the act of sexual selection on human beings too, but with the modification of the act that is seen on other non humans.
Charles Darwin and Alfred Russel Wallace first gave the concrete idea about the natural sexual selection that is seen on every non human organisms.

How many main parts is the nervous system made of

Answers

The nervous system consists of two main parts: the central nervous system and the peripheral nervous system.

The two main and most important factors or parts in the nervous system are the central nervous system as well as the peripheral nervous system.

Hope this helped

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