Answer:
definition: Biotic factors are the living components of an ecosystem.
example: animals, plants, trees, grass, bacteria, moss, or molds that you might find in an ecosystem.
Answer:
RBCs ( Red blood carpuscles )
WBCs ( White blood carpuscles)
Answer:
The individual would be the caribou. The community would be all the interacting groups of species in the same location
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By injecting Mesenchymal Stem Cells with ability to express high amount of Akt or protein kinase B in myocardium, researchers witnessed restored cardiac function and inhibition of ventricular remodeling. The effect was seen after two weeks of administration of cells. The culture containing hypoxic Akt-MSCs (conditioned medium) inhibits apoptosis or cell death induced due to hypoxia. Also, it triggers in vitro contraction of cardiomyocytes, the cardiac cells specifically responsible for contraction function.
The desired functional improvement can occur in short time which is less than 72 hours, the reason for which was hypothesized as paracrine action of cells. Hypothesis was proved by upregulation of genes that code for factors responsible for above mentioned effects (apoptosis and contraction). The factors are FGF-2, VEGF, HGF etc.
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Answer: A
Explanation: Homeostasis is the ability to keep an organism, cell at a maintenance to keep stability and regulation in order for it to function properly.
