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svp [43]
3 years ago
6

What happens when humans burn fossil fuels? Carbon is released into the atmosphere. Carbon is removed from the atmosphere. Carbo

n is added to the the carbon cycle. Carbon is destroyed.
Biology
1 answer:
elena-s [515]3 years ago
4 0

a - carbon is released into the atmosphere :)

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In ancient times people classified plants and animals by use.
muminat

Answer: One of the ways that people of ancient times classified plants and animals is by use. Today, group the creatures, as they do the plants, on the premise of shared physical attributes. They put them in a progressive system of groupings, starting with the kingdom Animalia and continuing through phyla, classes, orders, families, genera and species.

Explanation:

6 0
3 years ago
Which of the following balances is affected by the local force of gravity?
andreev551 [17]
A. Beam balance 
B. Analytical balance 
C. Spring balance


spring balance.
7 0
4 years ago
Can someone please answer 15-17
yan [13]

Answer:

15. D have specific gened activated

16. G cell division is unregulated

17. D providing information to form proteins

Explanation:

15. When an egg is first fertilised, the cells are very flexible. They are sort of like a "blank slate", and can become any type of cell. From these cells, all the cells in the body are created: brain cells, skin cells, blood cells etc. To become all these different types of cells, they keep dividing, slowly branching off and becoming more specific. This process is called differentiation.

They do this because different patterns and combinations genes are activated that turn them in to these different and specific cell types.

16. One of the hallmarks of a cancer cell is unregulated cell division. Oncogenes start as normal genes (called proto-oncogenes) that function in normal processes, such as the cell cycle, inhibiting apoptosis. However, when they become mutated, they can promote the growth and division of cells and prevent their programmed death. This is because they become more active or present in higher amounts following the mutation. This causes such functions in the cell to become deregulated, leading to uncontrolled cell proliferation and the growth of harmful tumour cells.

17. The central dogma of biology states that DNA --> RNA --> protein. The messenger RNA (mRNA) is transcribed from the DNA. It contains a message that is translated by the protein synthesis machinery to form proteins.

This is how all the proteins in the cell are produced, and the information for how to encode them is entirely dependent upon the sequence of the DNA, which is sent as a coded message in the form of RNA, to the protein synthesis machinery. The protein synthesis machinery makes the proteins according to the DNA sequence (as translated from the mRNA).

3 0
3 years ago
Describe the five categories of the vertebral column.
gladu [14]

Answer:

The five categories of vertebral column are:

  1. Cervical
  2. Thoracic
  3. Lumbar
  4. sacrum
  5. coccyx.

Explanation:

The 26 vertebrae of the spine or vertebral column are classified into five categories based on the structural differences between them. The first category is cervical and is made of seven cervical vertebrae. The spines of cervical vertebrae are shorter than that of others and have bifurcations.  

The next category is the thoracic and is made of twelve thoracic vertebrae. Thoracic vertebrae are followed by lumbar region made up of 5 lumbar vertebrae. Spines of thoracic vertebrae are longer and are directed downwards while that of the lumbar vertebrae project towards the posterior region. the sacrum is present below the lumbar region and consists of five fused sacral vertebrae. The last category of spine is coccyx. It has four fused coccygeal vertebrae.

3 0
3 years ago
The International Fisheries Commission was formed to:
Scorpion4ik [409]

Answer:

control halibut fishing

4 0
3 years ago
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