Answer:
B) Water does not soak into the ground
Explanation: A runoff is when the water does not get soaked into the water after any type of perciptation. ex: rain or snow. The water in an runoff is from the water that the land couldn't absorb.
Answer:
The correct answer would be D.) It is carried out in cells that are involved in sexual reproduction.
Meiosis is type of cell division which results in the formation of four haploid cells from single diploid parent cell.
It is also celled reductional division as it reduces the number of chromosomes to half in all the daughter cells.
It is divided into two stages meiosis I and meiosis II. Meiosis I includes division of homologous chromosomes which results in the formation of 2 haploid daughter cells from one parent cell.
The two daughter cells undergo meiosis II during which sister chromatids are pull apart which results in the formation of 4 daughter cells each containing half the chromosomes of parent cell.
It takes place in cells that are involved in sexual reproduction that is, it results in the formation of haploid gametes from diploid precursor cells.
In males, it results in the formation of sperm cell and in females it helps in the formation of eggs.
In sexual reproduction, fusion of gametes results in the formation of diploid zygote that is, re-storage of diploid chromosome number.
Answer:
Our solar system consists of our star (the sun) and the gravitationally bound objects that orbit it.
Explanation:
The International Astronomical Union (IAU) defines the solar system as the gravitationally bound system consisting of our sun and the objects that orbit it. Most consider these "objects" to be the planets, but they are only the biggest objects to orbit the sun. There are also dwarf planets, and smaller system bodies that are apart of our solar system.
Chloroplasts have chlorophyll which is where photosynthesis occurs. Photosynthesis does not occur in an animal cell,
Hope this answers your question
Answer:
Jacob and Monod were intellectually primed to draw the conclusions they did concerning regulation of the lac operon. In part, this was due to their fascination with mechanisms of enzyme regulation. They knew that the activity of some enzymes is regulated when their reaction product binds to the enzyme, changing its shape and therefore its activity. This knowledge allowed them to easily make the intellectual leap to propose B) allosteric regulation of the repressor
Explanation:
When we talk about the mechanisms of enzyme regulation, we refer to allosteric regulation of the repressor. The Allosteric control of transcriptional regulatory proteins allows organisms to react to changes in environmental and metabolic conditions. Also, it is s a thermodynamic phenomenon. When it binds one molecule, the affinity with which a protein binds to a second molecule is altered.