Answer:
DNA?
I'm guessing the boys who look the same are twins, since there's no photo of them..
Hope this helps
The aseptic technique that would reduce the chance of bacteria on a lab table contaminating a lab notebook is wiping off the surface of the lab table with a disinfectant, tying back long.
The correct option is B.
<h3>What are bacteria?</h3>
Bacteria is a prokaryotic microorganism that is found in every possible place on the earth.
Bacteria can cause many diseases in plants and animals.
It is important to clear things to prevent bacteria.
Thus, the correct option is b, To wipe off the surface of the lab table with a disinfectant tying back long.
Learn more about bacteria, here:
brainly.com/question/2490932
Answer:
Progesterone is one of the female sex hormones which performs important function during menstrual cycle, pregnancy and embryo development.
During follicular phase, it helps in the ovulation while during luteal phase it plays an important function of preparing the endometrium lining of the uterus. In addition, it also inhibits or decreases the production of FSH and LH during this phase with the help of negative feedback mechanism.
Progesterone gives negative feedback to hypothalamus and anterior pituitary which decreases or inhibits the secretion of FSH and LH. It is important as it prevents the ovulation of second egg prior to fertilization.
Answer:
Explanation:
The population density of an area is a demographic tool used to measure the number of organisms or individuals in a particular area.
It is expressed as;
Population density = 
The unit is expressed as organisms/km²
An area with a high population density is often not desirable as it can lead to pressure on amenities and infrastructure.
<span>A Telescope That Uses A Converging Lens To Collect Light</span>
