each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
Answer:
Penicillin, direct
Explanation:
this scientist has to inoculate the parent population using plates that contains penicillin in them. we call this approach the direct selection.
In the direct selection, bacteria is grown on a material that has penicillin in it. the goal is to find mutants that have resistance to penicillin. only these resistant ones would grow and then a direct identification would be done.
Answer:
Los glóbulos rojos se forman en la médula ósea roja de los huesos. Las células madre en la médula ósea roja llamadas hemocitoblastos dan lugar a todos los elementos formados en la sangre.
<h2>Answer:</h2>
Option B is correct.
B. aerobic autotroph
<h3>Explanation:</h3>
Autotrophs are organisms that can produce their own food from the substances available in their surroundings using light (photosynthesis) or chemical energy (chemosynthesis).
So, if a particular single-celled organism uses radiant energy to fix carbon as sugars and generates ATP by breaking down sugars through a process that uses oxygen, then it will be an
aerobic autotroph.
