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
kiruha [24]
3 years ago
8

As life began to populate earth’s surface, what change was seen in the atmosphere?

Biology
2 answers:
ki77a [65]3 years ago
8 0
Your answer is D

Biology is my best subject 
Andrei [34K]3 years ago
8 0

D. More oxygen was added.

You might be interested in
Match the following vocabulary words with the correct definitions.
BlackZzzverrR [31]

Answer:

Respiration

Saprophyte

Carbon dioxide

Glucose

Legumes

Artificial

5 0
2 years ago
What’s a geographic variation in fossil record?
Debora [2.8K]
Geographical variation refers to differences among populations in genetically based traits across the natural geographic range of a species. ... In the simplest case, we divide these factors into purely genetic versus environmental components to tease apart their relative contributions to observed phenotypic variation.
6 0
3 years ago
If there are 10 chromosomes in a particular cell at the start of prophase how many will be present in the same cell at the end o
Ilia_Sergeevich [38]

Answer:

20 chromosomes

Explanation:

Mitosis is a kind of cell division that results in daughter cells with same number of chromosomes as the parent cell. It involves stages including Prophase, Metaphase, Anaphase and Telophase. In prophase, the Chromatin condenses into Chromosomes.

In Anaphase stage, the 10 chromosomes as mentioned in the question divides into opposite poles of the cell. One individual chromosome contains two sister chromatids, which actually separates in the Anaphase stage. Hence, at the end of the Anaphase stage, there will be 10 chromatids each at opposite poles of the cell. Each chromatid at this stage is considered a chromosome.

Hence, a cell with 10 chromosomes will contain 20 chromosomes (10+10 chromatids on each pole) in the Anaphase stage just before the cell divides into two in a process called CYTOKINESIS.

4 0
3 years ago
Anthropology seeks the broadest possible understanding of humankind. it does this through its
Zepler [3.9K]
<span>Is the study of humankind in all times and places. 
-the study of all humans throughout time and space.                                                                  Hope it helped!</span>
7 0
3 years ago
to any 8th graders or 7th graders that take technology, what are you currently learning in technology class?
Anika [276]

Answer:

i'm learning DIT

Explanation:

so this year we were learning excel, word, and PowerPoint. currently we are learning how to use word in the beginning it was excel because my teacher said it was the hardest and would take the longest then we learned PowerPoint and last we learned word

3 0
3 years ago
Other questions:
  • During digestion, the blood picks up nutrients absorbed through the gi tract and transports them to the
    13·1 answer
  • The region of the brain that is involved in conscious thought and intellectual function as well as processing somatic sensory an
    5·1 answer
  • Elements can be organized on a. the atoms table. b. the multiplication table. c. the periodic table.
    15·1 answer
  • In looking at the layer of rock, bones from the Pliohippus are found in layers above bones of the Mesohippus what does this tell
    15·1 answer
  • A reticulocyte count indicates that 5% of Tyler's red blood cells were reticulocytes. His blood test also indicated he had polyc
    10·1 answer
  • Division of replicated chromosomes occurs during:
    5·1 answer
  • Imagine that you're able to fully dissolve a powdered substance in water
    10·1 answer
  • how does tobacco smoke effect the body? a.it blocks hemoglobin from binding to oxygen, thus affecting gas exchange in the lungs
    8·1 answer
  • At a mid-ocean ridge, a crack forms along the oceanic crust causing __________.
    10·1 answer
  • HElPP MEE PLEEAAASEEEE :( ill mark u brainliest- thankyou so muuch
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!