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
natulia [17]
3 years ago
10

How old is the earth​

Biology
2 answers:
viva [34]3 years ago
7 0

The Earth is around 4.6 billion years old. earth has a slightly squashed sphere, measuring 7,973 miles (12,756 km) in the diameter at the equator.

Gnoma [55]3 years ago
4 0

Answer:

4.543 billion years

Explanation:

You might be interested in
Do frogs breath mostly through their skin?
harina [27]
Frogs do have lungs but they are small and rarely used, frogs mostly take in moisture through the skin in process called cutaneous gas exchange.
6 0
3 years ago
Read 2 more answers
Why do organisms die if they don’t have enough water
Alla [95]
The transfers of most cells require water and if the body dosent have enough it will shut down
7 0
3 years ago
We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
Alina [70]

Answer: Option B) phosphate; hydroxyl; 3'

We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the phosphate group attached to the 5' carbon atom of the sugar portion of a nucleotide and the hydroxyl group attached to the 3'

carbon atom

Explanation:

For both RNA and DNA, chemical groups such as phosphate (PO3-) attaches to the 5' carbon of the pentose sugar (deoxyribose in DNA, ribose in RNA).

While hydroxyl group (OH) attaches to the 3' carbon atom of the pentose sugar.

Thus, a nucleic acid structure structure reveals a several repeating units of nucleotides where nitrogenous base links to a pentose sugar, who in turns is linked to phosphate group

5 0
3 years ago
Photosynthesis is vital for maintaining levels of atmospheric oxygen
nevsk [136]

Answer:

true

Explanation:

im not quite sure what the answer is but if its true and false then the answer is true

4 0
2 years ago
Descirbe the structure of bone
vodomira [7]
The basic structure of bones is bone matrix, which makes up the underlying rigid framework of bones, composed of both compact bone and spongy bone. The bone matrix consists of tough protein fibers, mainly collagen, that become hard and rigid due to mineralization with calcium crystals.
8 0
2 years ago
Other questions:
  • Which of these would be the most helpful when identifying a mineral?
    15·2 answers
  • Which of the following analogies best describes the motion of a nonmotile protist? . A. A boat is moved forward by several oars.
    7·2 answers
  • Mendel crossed y/y;r/r (yellow wrinkled) peas with y/y;r/r (green smooth) peas and selfed the f1 to obtain an f2. in the f2 what
    7·1 answer
  • Predict what might happen if the human body did not have specialized cells, tissues, organs, and organ systems to maintain homeo
    5·1 answer
  • Will mark bainliest. Why cells small?<br> Hint becose they small
    12·2 answers
  • If you wanted to increase the rate of photosynthesis in a plant, you would develop a plant with which of the following character
    13·2 answers
  • Which statement best explains how each of the different cell types can develop from the same embryo
    6·2 answers
  • How did planetesimals form?
    9·1 answer
  • Julie is preparing vegetables for dinner and accidentally cuts her finger. She washes it with soap and water before covering it
    15·1 answer
  • The __________cranial fossa ranges from the posterior edge of the lesser wings of the sphenoid bone (anteriorly) to the anterior
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!