Question 45 2 pts
Why do we need to breathe in oxygen gas?
O Oxygen gas allows us to build sugar molecules from carbon dioxide gas and water
o Oxygen gas allows us to build carbon dioxide molecules from water molecules
Oxygen gas allows us to build chlorophyll molecules and cell walls for our cells
o Oxygen gas allows us to release energy from food molecules
Question 46
2 pts
What information is contained in the order of nucleotides in a messenger

flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.

answer; endoplasmic reticulum;