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
artcher [175]
3 years ago
8

Which of the following accurately reflects the beliefs on Earth's early history?

Biology
2 answers:
zhenek [66]3 years ago
6 0
The correct answer is D.
From the scientific research conducted so far, we know that in the early Earth's history the atmosphere lacked oxygen and was mostly filled with other gases like methane. The increase in oxygen levels happened when the plants started producing oxygen as a byproduct of the process of photosynthesis.
The research so far also shows that the RNA was present before the DNA and that the microspheres might have been essential to the development of life on Earth.

leva [86]3 years ago
6 0
Correct answer is D.
You might be interested in
what do some of your cells do to keep facilitated diffussion operating while transferring glucose into the cell?
Shkiper50 [21]
Glucose is a six-carbon sugar that is directly metabolized by cells to provide energy. The cells along your small intestine absorb glucose along with other nutrients from the food you eat. A glucose molecule is too large to pass through a cell membrane via simple diffusion. Instead, cells assist glucose diffusion through facilitated diffusion and two types of active transport
8 0
3 years ago
Read 2 more answers
Select all that apply.
stira [4]

Answer:

The correct answers would be maintain chromosome number through generations  and cause genetic variations by recombination.

In Meiosis a cell divides into four daughter cells all of which have half the number of chromosomes present in a parent cell.

It helps in the formation of gametes in sexually reproducing organisms.

These gametes (one from father and one from mother) fuse together to form a zygote. It re-established the chromosomal number as that of the parent.

In absence of meiosis, the chromosomal number would have doubled after each generation.

In addition, the meiosis also increases the genetic variation among the population with the help of crossing over which occurs during the pachytene stage of prophase I.

During this event, genetic information is exchanged between the non-sister chromatids of the homologous chromosomes. It produces a new combinations of genes that are different from either parent.

7 0
3 years ago
Read 2 more answers
NO LINKS AN A ANSWER
Vlad [161]

Answer:

prairie dog

Explanation:

the prairie dogs are herbivorous burrowing rodent native to the grassland of North America

5 0
3 years ago
I’ve been super overwhelmed with homework! Please help out!
lubasha [3.4K]

Answer:

Tiny cells make up everything in your body, groups of these cells will make body tissue and body tissue makes up all the organs in your body like heart and liver. These organs make up an organ system like the respiratory system which focuses on bring air in and around your body. With all these systems working together your body will work perfectly.

I hope that this is ok.

6 0
3 years ago
What type of animal eye is this? Who's is it?
bazaltina [42]
Its a fish eye because of the glimmer inside the iris
7 0
2 years ago
Read 2 more answers
Other questions:
  • A DNA sequence is shown.
    13·2 answers
  • Which animal is manufacture their own food?
    15·1 answer
  • Predict the next digestive system organ in the following sequence:
    6·2 answers
  • How is water able to get into the bean seed?<br><br> Why does the water go into the bean seed?
    11·1 answer
  • Crossing over occurs during meiosis and leads to changes in the chromosomes. What type of chromosomes does crossing over produce
    8·1 answer
  • Why are casts, molds, and trace fossils so common?
    6·2 answers
  • What can a scientist<br> learn by observing the<br> behaviors of a particular <br> animal?
    14·1 answer
  • If a species has a 2n number of 18, how many autosomes would their SOMATIC cells have?
    12·1 answer
  • Ghghghhghhghghghghgyu y
    7·1 answer
  • Why taenia solium is not digested by human intestines?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!