Bacteria are prokaryotic cells. They do not have a nuclear membrane and chloroplast is also absent. In photosynthetic bacteria, there are lamellae called thylakoids which contain enzymes and bacterial chlorophyll necessary for photosynthesis.

7 0

3 years ago

Ninety nine percent of the atmosphere is composed of _____ and _____. water vapor, carbon dioxide nitrogen, oxygen nitrogen, car

eimsori [14]

Hey there!
Ninety nine percent of the atmosphere is composed of oxygen and nitrogen! The atmosphere is composed of 78% nitrogen and 21% oxygen!
Hope it helps :D

5 0

2 years ago

Read 2 more answers

I) Briefly discuss the strengths and weaknesses of the four spectroscopy techniques listed below. Include in your answer the spe

klemol [59]

delete please .....................................

4 0

2 years ago

The other half is posted !!!!!!

koban [17]

Answer:

this isn't an answer just need these points