1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Evgesh-ka [11]
3 years ago
10

We know that the atmosphere became more oxygen rich around 1.8 ga because of geologic evidence such as:

Biology
1 answer:
qwelly [4]3 years ago
7 0
The answer is: banded iron formations,
You might be interested in
Parasitism is considered a/(n) _______________limited factor
ExtremeBDS [4]
I think its a density dependent limited factor
4 0
2 years ago
Read 2 more answers
How is everyones spring break going!
Anna [14]

Answer:

dont got one yet

Explanation:

5 0
2 years ago
A somatic cell containing a diploid chromosome number of 24 undergoes mitosis. each daughter cell will have _____ chromosomes. 4
ANEK [815]
Each daughter cell will have

12 chromosomes
3 0
3 years ago
What are two cells structures in green leaf cells that are not in human cells
DIA [1.3K]
Chloroplast and Cell Walls.
8 0
3 years ago
Read 2 more answers
Differential survival and reproduction is best described by which term? natural selection creationism inheritance of acquired ch
Sophie [7]
I believe it is natural selection. Natural selection is when over a period of time, traits that are formed to help the organism survive, are passed to the next generation. For example, if there were two types of rabbits. One had black fur and the other was white. They both lived in the artic. The black furred rabbits are mostly eaten by predators because their black fur is easily seen against the ice and snow. Over a period of time, the black furred rabbit would die out. The next generation would mostly have white fur to help them survive.
5 0
3 years ago
Other questions:
  • What single feature is primarily responsible for the variation of climate throughout different times of the year?
    8·1 answer
  • Which portion of the brain is involved in sensory perception? cerebrum cerebellum medulla hypothalamus
    11·1 answer
  • Which statement best explains why meiosis produces haploid cells rather than diploid cells?
    9·2 answers
  • Activity 3: Direction: Study the picture. Write the phases of the moon 1 new moon O first quarter O MOON PHASES last quarter wan
    11·1 answer
  • Explain how using a microscope could help you confirm that sea anemones are animals​
    7·1 answer
  • Sexual reproduction involves a process called meiosis. What type of cells are produced during this process?
    9·2 answers
  • Climate covers smaller or larger areas than weather
    9·1 answer
  • The coral reef ecosystem is said to be stable and not extreme. Describe what this means along with how it affects the food chain
    14·1 answer
  • 21. Three different processes are occurring in the drawing below. Name each process and describe it.
    15·1 answer
  • When bile is needed for digestion, the gallbladder releases it into the duodenum through the?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!