The diagram below shows a portion of the geologic time scale. Based on the time scale, it can be concluded that

A flowering plants appeared on Earth before animals

B animals appeared on Earth before flowering plants

C flowering plants created the first oxygen molecules

D land animals created the first oxygen molecules

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.

answer; both surfaces of the membrane are nonpermeable