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nordsb [41]
3 years ago
6

Salmon hatcheries are commonly found near rivers along the West Coast of the United States because of decline in wild salmon pop

ulations due to what activities?
Biology
2 answers:
Sidana [21]3 years ago
5 0

Answer:

Salmon populations in the United States is declining due to the following factors:  

1. Over-fishing and human activities have put a major influence on the population of salmon.  

2. Due to industrialization, urban growth, unplanned farming, deforestation, and pollution would have imparted strains on the stocks of salmon. Apart from this chemical contamination from the industrial run-off and agricultural activities are also declining populations of salmon.  

3. Genetically modified fish from hatcheries usually escape and interbreed with wild fish, thus, changing the genetic features of the populations.  

4. Construction of hydropower dams is also a major cause of the salmon population declining.  

Lunna [17]3 years ago
3 0

Answer:

The Salmon are endothermic animals and there internal environment changes according to the external environments. The change in the external environment can lead to the sudden decline in the population.

The main factors that are responsible for the decline in salmon populations are habitat fragmentation, habitat loss, hatcheries, increased urbanization and sudden change in the external environment. The increase in the environmental population also decreases the Salmon population.

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Which environment will have a negative impact on both cells with a cell wall and cells without a cell wall?
notsponge [240]

The environment that will have a negative impact on both cells with a cell wall and cells without a cell wall is the hypertonic environment.

<h3>What is a cell wall?</h3>

A cell wall is defined as the flexible outer layer of the cell that provides protection for the cell from any physical or chemical stress.

A hypertonic fluid environment is the type of fluid that is highly concentrated than the cell.

Therefore, when a clear is placed in a hypertonic environment, through the process of osmosis, water moves out of the cell.

This affects also cells that do not possess cell wall.

Therefore, the environment that will have a negative impact on both cells with a cell wall and cells without a cell wall is the hypertonic environment.

Learn more about cell here:

brainly.com/question/26122239

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5 0
2 years ago
Four friends were arguing about the flow of energy between organisms in a food chain. They
Bezzdna [24]

Answer:

I would agree more with Amos' opinion, thinking that most of the plant's energy ends up in the grasshopper.

Explanation:

In food chains, the flow of energy that occurs from one organism to another, from the producer to the tertiary or quaternary consumer. The amount of energy that can be transferred from one level to another is only 10%, with herbivorous animals taking up more of the energy that a producer has.

According to this, <em>it is logical to think like Amos, since the grasshopper -a primary or herbivorous consumer- will take advantage of more energy contained in the plant, with respect to the consumers of the higher levels</em>.

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7 0
3 years ago
What is the relationship between structure and function of molecules
DIA [1.3K]

Answer:

PS:Can I be brainliest.

Have a nice day

Explanation:

Each molecule has a characteristic size and shape that determines its function in the living cell. The shapes of molecules are determined by the positions of the atoms' orbitals. When an atom forms covalent bonds, the orbitals in its valence shell are rearranged.

8 0
3 years ago
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Darina [25.2K]

Answer:

Statement 1.) Both saturated and unsaturated fats.

Statement 2.) Saturated fat

Statement 3.) Unsaturated fat

Statement 4.) Unsaturated fat

Statement 5.) Both saturated and unsaturated fats.

Statement 6.) Saturated fat.

Explanation:

Fatty acids are straight chain carbon compounds of varying lengths. It is an important component of lipid in plant and animals. All fats are known to contain nine calories per gram, therefore can add to the weight of an individual. There are two type of fatty acids which includes:

--> Saturated fatty acids: these are fatty acids that contains no double bonds making it solid at room temperature. They are usually found in animal products such as milk, cheese and meat. They are absorbed in the villi of small intestine after digestion. One of the disadvantages of consuming diet rich in saturated fat is Saturated fats might increase LDL cholesterol levels. These are the bad cholesterol which are affected by inhibiting the LDL receptor activities leading to its increase. This can lead to heart disease conditions.

--> Unsaturated fatty acids: These are fatty acids which may contain one or more double bonds making it liquid at room temperature. They are found in plant oil (omega 6) and fish oil (omega 3). When consumed, they are absorbed in the villi of small intestine and helps maintain a good balance of cholesterol in blood.

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3 years ago
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Using what you know about renal handling of na+, predict the renal clearance of na+.
NemiM [27]
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4 0
3 years ago
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