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alekssr [168]
2 years ago
14

2. Explain where a person’s DNA comes from.

Biology
1 answer:
IRISSAK [1]2 years ago
5 0

Answer:

Each cell in your body has DNA, but the DNA formation was influenced by your parents. Their genes formed your genes.

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Each nucleotide triplet (or 3 bases at a time) in mRNA that specifies a particular
Ksenya-84 [330]

Answer:

B

Explanation:

Hope this helps!!

3 0
2 years ago
In the human brain, a great deal of synaptic pruning occurs in early childhood. This pruning appears to be:_______.
Alex

Answer: D. An adaptive process that allows children to deal more efficiently with their environment.

Explanation:

Synaptic pruning is a natural process between early childhood and adulthood which occurs in the brain. The brain removes the extra synapses during synaptic pruning. Synapses are brain structures that allow the neurons to transmit to another neuron an electrical or chemical signal.  

Synaptic pruning is thought to help the brain transition from adolescence, when it can quickly learn and make new connections, to adulthood, when it is much more stable in its structure, but can concentrate on a single question for longer and conduct more complex thinking processes. Synaptic pruning make brain more adaptive to the external environment in early ages.

Hence, the correct option is D. An adaptive process that allows children to deal more efficiently with their environment.

4 0
3 years ago
The most basic definition of cellular respiration is that it is cells breaking down food to make energy. True or false?
fredd [130]

Answer:

<u>True</u>

Explanation:

In cells, energy is obtained from food through the process of cellular respiration. In mitochondria, this occurs through aerobic respiration- here, cells breakdown sugars like glucose into carbon dioxide and water and energy in the form of ATP or adenosine triphosphate.

In cellular aerobic respiration:

C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP

3 0
3 years ago
Piz help fast!!!!!! thx​
agasfer [191]
C as activation energy is the highest curve on the graph
3 0
3 years ago
Which body system makes red blood cells?
forsale [732]

Answer:

In the human adult, the bone marrow produces all of the red blood cells, 60–70 percent of the white cells (i.e., the granulocytes), and all of the platelets. The lymphatic tissues, particularly the thymus, the spleen, and the lymph nodes, produce the lymphocytes (comprising 20–30 percent of the white cells).

4 0
3 years ago
Read 2 more answers
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