the correct answer is the first one. density = mass / volume.
i hope this helped!
Researchers may be able to induce adult cells to behave like embryonic stem cells an important advance in stem cell therapy.
Embryonic stem cells :
Embryonic stem cells are found in the inner cell mass of the human blastocyst, an early stage of the developing embryo lasting from the 4th to 7th day after fertilization. In normal embryonic development, they disappear after the 7th day, and begin to form the three embryonic tissue layers.
How embryonic stem cells are obtained?
Stem cells are now being collected from human embryos. In most cases, the embryos that are used have been aborted or left over from in vitro fertilization procedures. Although not technically feasible at this time, researchers expect that it is possible to clone stem cells from a patient's own somatic cells.
Cell therapy :
Cellular therapy (CT) is the transplantation of human cells to replace or repair damaged tissue and/or cells. With new technologies, innovative products, and limitless imagination, many different types of cells may be used as part of a therapy or treatment for a variety of diseases and conditions.
Learn more about stem cell therapy :
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Chemically speaking, enzymes are composed of chains of amino acids, and they are considered to be a type of protein.
During photosynthesis, the plant needs carbon dioxide and water-- both of which are released into the air during respiration, during respiration, the plant needs oxygen and glucose, which are both produced through photosynthesis
OLD COWS GO
OXYGEN/CARBON/GLUCOSE
Answer:
Genetic drift does not require the presence of variation.
Explanation:
Genetic drift is the random changes to the frequency of an allele in a given population.
Natural selection is the process whereby organisms that are well adapted to the conditions in an environment can survive and produce more offspring.
- Genetic drift does not require variation to occur.
- It usually occurs even when there is less to no variation.
- Natural selection occurs when variation is very large.
- A highly varied gene pool causes natural selection.
