Answer:
The answer is 2.
Explanation:
When oxygen gets into the lungs, it first needs to diffuse through the alveoli and into the blood. Then through the veins and capillaries, it diffuses into all the calls in the body. It does so quite easily because it is a nonpolar and a very small molecule with a low concentration inside the cell. This gives it the ability to diffuse easily through the cell membrane.
So the number of times that oxygen has to diffuse through a plasma membrane is two.
I hope this answer helps.
Answer:
this occurs in animals and plants they use oxygen molecules to break down food it also occurs in cells of animals, plants, and fungi, and also in algae and other protists.
Explanation:
Hope it helps brainly 4 effort? bless u btw
Answer: cause haploids make gamets... And each female and male gamets share their DNA together...
And IF we didn't have haploids that would make double DNA every time...
Like ur parents each have 46 Chromosomes and iffff they wouldn't have the haploid gamets at the end of meiosis you would have 46+46 chromosomes.... Terrible yeah?
So this haploid stuff has been organized so each the parents share half DNA ... 23 father+ 23 mother... So the next generation will have 46 chromosomes...
Explanation:
Answer:
Explanation:Agents that attack plants are
fungi, bacteria, mollicutes, parasitic
Agents that attack animals are: virus, bacterial, Humans, infectious diseases and living organism
[18/12, 11:07 am] +234 703 566 9727: By causing changes in crop growth
Changes in photosynthesis
Both positive and negativity
Redundant in crop production
Delayed in in production
