Answer:
Sharp-spined cactus
Explanation:
Given, that N allele is required for the production of spine and S allele will produce sharp sines.
True breeding sharp spined cactus: NNSS
spineless cactus: nn__ ( we can't fix the allele for second gene since it has not been mentioned as true breeding )
Their progeny: NNSS X nn__ = NnS_
So the progeny is going to be sharp spined because both the dominant alleles N and S are present.
Answer:
Old Fishing Gear
Explanation:
The patch, in fact, is made up mostly of abandoned fishing gear. According to the study, fishing nets alone make up 46 percent of the 79,000 tons of garbage.
They showed how organic molecules could be made from Earth's early atmosphere.
Answer:
i think Decaying plant matter is answer
Answer:
most likely d, she's a chemist so she works with chemicals and substances akin to them