Biology, 12.12.2020 16:10, cuzhernamesari

Drag the tiles to the correct boxes to complete the pairs. Before the presence of living organisms, Earth was a very different place. Match each fact about Precambrian Earth to the sphere most affected by it.

Tiles:
- Cyanobacteria began to emerge as a life-form.
- Oceans contained far less salt than they do today.
- Oxygen spilled into this sphere from ocean waters.
- Oxidation in rocks and minerals was not possible.

Drag the tiles to the correct boxes to complete the pairs.

Before the presence of living organism

Answers: 3

Show answers

Other questions on the subject: Biology

Biology, 22.06.2019 01:00, dahn

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

Answers: 3

continue

Biology, 22.06.2019 03:00, babbybronx

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Answers: 1

continue

Biology, 22.06.2019 03:30, fnaflover8505

Awire-hair terrier and a smooth-hair terrier are mated. the offspring produced are 6 wire-hair puppies and 2 smooth-hair puppies. a. what pattern of inheritance best describes this situation? b. what is the genotype(s) of the wire-haired puppies? of the smooth-haired puppies? c. what would be the expected genotype and phenotype ratios of a mating between 2 wire-haired terriers that are heterozygous?

Answers: 3

continue

Biology, 22.06.2019 05:30, carlydays3331

What in scientific term why the salty popcorn causes this thirst

Answers: 1

continue

Do you know the correct answer?

Drag the tiles to the correct boxes to complete the pairs. Before the presence of living organisms,...