I would say D and A are your answers :)
Answer:
a,c,d
cause edgenute
uh, yeah! have a good day!
Structures in plant leaves that open and close to maintain homeostasis are called stomata. This is where gases would diffuse in and out of the leaf.
Answer:
Bacteria
Explanation:
Bacteria have no true nucleus because it's a prokaryote. It couldn't have been a virus because all naturally occurring viruses are pathogenic unless treated by radiation.
We have two types of bacteria,
- Pathogenic
- Commensals
Pathogenic bacteria will definitely cause disease. Commensals, however, have don't harm us and have the ability to help us.
Eg: Flora (bacteria) in our intestines produce vitamin K and most of the vitamin B complex. They also compete with the pathogenic bacteria that you might've ingested and don't allow them to increase to the number that can cause disease.
Answer:B
Explanation:
The first stage of photosynthesis is the light reaction which occur in the thylakoid membrane of the chloroplast. Solar energy of light captured by chlorophylls, and is used to produce high-energy electrons of which in a series of reactions produces ATP and NADPH.
In the dark reaction of photosynthesis the ATP and NADPH are used to reduce CO2 to produce sugar
