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
Doss [256]
2 years ago
13

Approximately how old is the earth?

Biology
2 answers:
Artemon [7]2 years ago
8 0
The answer is B. Hope this helps
Bas_tet [7]2 years ago
7 0

I am pretty sure the answer is B. hope this helps and if it is wrong pls tell me thanks! :)

You might be interested in
A cell spends approximately _____ of its cycle in the M phase. 10% 30% 60% 90%
yawa3891 [41]
<span>90%

The M phase is part of the cell division process where the cell spends most its time in. This cell division process is varied from S phase, M phase, G1 and G2 phases. The mitosis process is where the cell starts to duplicate itself and produce daughter cells. </span>
7 0
2 years ago
Read 2 more answers
What are two ways cells die.
slava [35]
<span>A cell can die in many ways - through infection, poisoning, overheating or lack of oxygen. An uncontrolled death is messy: the cell swells up, and its contents leak away. This may damage surrounding cells. But there is another, tidier way to go - programmed self-destruction, or apoptosis.</span>
8 0
3 years ago
How might the destruction of vegetation affect the animal life in an area?
VMariaS [17]
The vegetation in most environments is crucial as a food source for many animals in the area. Without it, many animals may starve, thus setting on a chain reaction of animal displacement.
4 0
3 years ago
The __________ abuts the lumen of the alimentary canal and consists of epithelium
Misha Larkins [42]

Question is incomplete. Complete question is as follows:

The ____ abuts the lumen of the alimentary canal and consists of epithelium, lamina propria, and muscularis mucosae.

Answer:

Mucosa

Explanation:

Mucosa or mucosal membrane forms the lining of many cavities in the body like the alimentary canal and also covers many internal organs. It lines reproductive, digestive and respiratory system. In the gastrointestinal tract the mucosa is made of three layers: epithelium, lamina propria and muscularis mucosae.

The epithelium of mucosa is made of simple columnar epithelium cells. It consists of many types of cells like parietal cells (secrete HCL) and foveolar cells (secrete mucus). Lamina propria is a loose connective tissue present beneath the epithelium. It provides nutrition and support to epithelium. Muscularis mucosae has smooth muscle fibers which helps the glands on the surface to secrete their contents and also increase the contact between contents of lumen and epithelium.

5 0
3 years ago
Why does the number of yeast cells decrease during fermentation??​
Leokris [45]

Answer:Dough can still rise in cooler environments, but much more slowly. Amount of yeast; the more yeast the faster the fermentation. Too much can add an undesirable yeasty flavor.

3 0
2 years ago
Other questions:
  • Suppose a geneticist mutates the gene for the poly(A) tail-binding protein (PABP) in an eukaryotic cell line. The resulting muta
    7·2 answers
  • Some mutations always occur from generation to generation but most mutations to not persisting overtime in the gene pool which m
    14·1 answer
  • Connective tissue is notably different from epithelial tissue. Which statement describes a major difference between these tissue
    7·1 answer
  • How does driving in a car that uses gasoline connect to the carbon cycle
    14·1 answer
  • Plz help! Will award brainliest! I just need help with the rest
    10·1 answer
  • Can someone help me please
    5·1 answer
  • Which of the following epithelial tissue locations is NOT correctly matched to its function?
    8·1 answer
  • The chemical bond that holds the elements together is an
    7·2 answers
  • Como se relacionan los 4 sistemas de nutricion ?
    15·1 answer
  • Help me please help
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!