While taking a walk around the neighborhood, a student walks into a tree branch and cuts their arm. Which explanation BEST descr
ibes what organelles in your body work together for the skin on the arm to heal after being cut? A.
The chloroplasts provide the energy for the cell wall to undergo the process of cellular reproduction.
B.
The nucleus controls the amount of energy released so that the lysosomes can give the command for cellular reproduction.
C.
The nucleus gives instructions to begin cellular reproduction, and the mitochondria makes the energy necessary for the process.
D.
The chloroplasts provide nutrients for the nucleus to give instructions to the ribosomes so that cellular reproduction can occur.
First off, humans are considered animals, and since animal cells don't have chloroplasts, A and D are immediately incorrect. B is incorrect because lysosomes eject enzymes that digest materials in the cell, and to heal skin, you dont need to digest anything/ use enzymes to get rid if materials. That means the answer is C. The nucleus is the control center for the cell, so it tells the cell what to do. The mitochondria creates energy for the cell, and since it takes energy to heal, this answer is correct. (Tip- I find that using process of elimination in biology questions helps a lot.) Good luck!
I think the answer is 90%. According to the recent National institute of Health, Microbes in the human body estimates that 90% of the cells in human body are bacterial, fungal, or otherwise non-human. Despite the arguments that bacteria enjoys a commensal relationship with the humans hosts, only a fraction of the human microbia has been characterized.
