Answer:
B. Oncogene
Explanation:
A gene that makes the body cells to divide in an uncontrolled manner is called an oncogene. An oncogene is responsible for the development of tumors due to disturbed regulation of cell division. The gene src makes the cells to enter the process of cell division in response to the growth factors.
However, the mutant src gene does not require the presence of growth factors and signals the cells to enter the process of cell division even in the absence of the growth factors. Since the mutant src gene causes uncontrolled cell division, it represents an oncogene.
Answer:
The carbon cycle refers to the procedure in which the atoms of the carbon are recycled again and again on Earth. Carbon recycling occurs within the biosphere of the Earth and between the nonliving environment and living things.
In case if I were a carbon, then I would have originated from fossil fuels and left the ground, through the process of photosynthesis I would have entered the trees, I would have consumed by animals, even I would have released from some of the trees or plants that dies, I would have also released from animals by the process of decomposition after their demise, and animals can even breathe me in out by the process of respiration.
Explanation:
I think the best answer from the choices listed above is option B. Planning activities at your own home helps you avoid situations involving alcohol since alcohol use is almost always tied to group events outside the home. Alcohol is mostly present in parties and any group activities. Hope this answers the question.
Answer:
When the molecules are too large.
Explanation:
Facilitated diffusion refers to the passive transport of substances down the concentration gradient via specific transport proteins present in the membrane. The large, polar, charged substances and ions cannot pass through the small spaces present between hydrophobic tails of membrane phospholipids. The transport proteins transport these substances in energy independent manner.
