Ans.
Meiosis involves a type of cell division in sexually reproducing organisms that results in formation of four daughter cells from a single parent cell, having half of the genetic material as in parent cell. Meiosis is divided into meiosis I and meiosis II.
In gamete forming cells of humans are diploid cells and have 23 pairs of chromosomes (or 46 chromosomes). Each gamete forming mother cell undergoes meiotic division to form haploid daughter cells or gametes, each with 23 chromosomes.
Thus, the correct answer is 'twenty-three' as there are 23 chromosomes present in human sex cells at the end of meiosis II.
Answer:
The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH.
Here are the basic steps:
Light absorption in PSII. ...
ATP synthesis. ...
Light absorption in PSI. ...
NADPH formation.
Explanation:
Answer:
O C. There is no photosynthesis.
Explanation:
Aphotic zone of a body of water refers to the part where almost no sunlight. With this condition of water, marine life is limited to species who does not light for survival. The aphotic area also is the basin of the dead organism that submerges from the photic part. Temperatures at these areas are also low
The contents that a data in the food label is supported are
by having nutritional facts, example having the percent of carbohydrates
consumed in the food. Another thing, they often gave advice in milligrams when
having to label the nutritional fact such as having 1,300mg of calcium.
Water makes up 90% of the body.
