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alexgriva [62]
3 years ago
10

Some people think hydropower should be used to supply all of the electricity

Biology
1 answer:
ollegr [7]3 years ago
4 0

Answer:

D. Hydropower can harm native aquatic populations.

Explanation:

  • Hydropower is the power of water or hydrosphere and is the cheapest and simplest form of energy.
  • The hydrosphere is a renewable source of energy and is thus non-polluting but most of the hydropower that is converted into electricity is harmful to the marine and aquatic life forms.
  • As it disturbs their habitats and created chemical and physical change in the body of water. Such as depletion of oxygen and enrichment of nutrients.
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The organic chemicals that help cell membranes to conserve internal fluids are:
guajiro [1.7K]

<u>Answer</u>:  

The organic chemicals that helps cell membranes to conserve the internal fluids are phospholipids.

<u>Explanation</u>:

Phospholipids are used to form plasma membrane of the cell. Plasma membrane surrounds the cell contents like various cell organelles, nucleus, ribosomes and proteins. A phospholipid molecules is made up if a polar head containing a phosphate group and the two non-polar tails made of long chains of hydrocarbon of fatty acids.

The another name for plasma membrane is phospholipid bilayer. The polar head is hydrophilic that interactes with polar environment while facing outside the bilayer while the non-polar tail is hydrophobic in nature which makes the internal hydrophobic region of cell membrane which faces inside the bilayer.

8 0
3 years ago
Why are chloroplasts found only in plant cells?
mr_godi [17]
Chloroplasts are only found in plant cells because it is the organelle that makes photosynthesis possible and it makes food for the plant cells as in it makes its own food and animal cells dont need them because animals eat other animals for that food
8 0
3 years ago
Scientists have genetically engineered potato plants to produce potatoes that contain edible vaccines. Which is a disadvantage o
Valentin [98]

Answer:

They are more expensive than potatoes without the vaccine.

The genetically modified crops are produced by using the scientific procedures of genetic engineering. It involves the manipulation of the genome of these crops so as to make them disease resistant, improving the quality of the edible parts and increasing the yield of the plants. The crops are genetically modified with accuracy, precision and implementation of the technology therefore, the crops produced are expensive then the crops produce by the conventional method.

Hence, they are more expensive than potatoes without the vaccine is a disadvantage of the genetically engineered potato plants to produce potatoes that contain edible vaccines.

Explanation:

8 0
3 years ago
When an occlusion of the coronary vessel occurs, the person experiences a?
marusya05 [52]
Hey there Merlinemicheli3271,

When an occlusion of the coronary vessel occurs, the person experiences a?

Answer:

Myocardial Infarction 

Hope this helps :D

<em>~Natasha♥</em>
7 0
3 years ago
If a dna analysis reveals that a cell has 60 ng of adenine and 20 ng of cytosine, how much thymine and guanine are in the cell?
Serggg [28]

Answer:

Thymine= 60 ng

Guanine= 20 ng

The complementary base pairing occurs between adenine and thymine and guanine and cytosine bases.

Explanation:

According to the Chargaff rule, a double-helical DNA molecule has an equal number or equal amount of adenine and thymine bases since adenine always pairs with thymine. Similarly, the amount of guanine base is equal to that of the cytosine base.

Chargaff rule is based on the complementary base pairing between purine and pyrimidine bases. According to the given information, the amount of adenine is 60 ng. Therefore, the cell would have 60 ng thymine. Similarly, the amount of the cytosine base in the cell is 20 ng which means that the cell would have 20 ng of guanine base.

5 0
3 years ago
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