Answer:
D. glycosidic link
Explanation:
A glycosidic link is a covalent bond that holds two monosaccharides together.
Hope that helps.
Maybe A or C because it sounds more reasonable
Answer:
I can help if you post them bc I know how to do them
Explanation:
Answer: Exotic and invasive species are two types of non-native species, which are introduced to ecosystems by natural processes or humans. Most exotic species are domestic, and they do not harm ecosystems. But, invasive species are harmful to the ecosystems.
Explanation: hope this helped! :)
3 is a Black Hole. 5 is protostar