Question

question 52 (1 point)
cyanobacteria are important because they:
contain mitochondria
are the smallest known bacteria
fix nitrogen and perform oxygenic photosynthesis
cause malaria
question 53 (1 point)
archaea differ from bacteria in that archaea
have cell walls composed of substances other than peptidoglycan
are prokaryotic
lack nuclei
use organic compounds for food

Explanation:

For Question 52, cyanobacteria are prokaryotes that can fix nitrogen and perform oxygen - producing photosynthesis. They do not contain mitochondria, are not the smallest known bacteria, and do not cause malaria. For Question 53, Archaea are prokaryotes like bacteria but their cell walls are made of substances other than peptidoglycan which is common in bacteria cell walls. Both archaea and bacteria are prokaryotic and lack nuclei, and some archaea and bacteria can use organic compounds for food.

Answer:

Question 52: Fix nitrogen and perform oxygenic photosynthesis
Question 53: have cell walls composed of substances other than peptidoglycan