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3 years ago

Explain why fertilizer use by farmers can have negative effects on aquatic ecosystems?

1 answer:

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Fertilizer can lead to algal bloom in aquatic ecosystems, which means that its usage may lead to oversaturation of algae in the seas and oceans. Although algae are good for these kinds of waters in limited amounts, when there are too much of them it can stifle all other life, thus having negative effects on aquatic ecosystems.

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Receptors for acetylcholine are located on the

elena-s [515]

Answer:

plasma membrane of the target cell

Explanation:

There are two main types of acetylcholine (ACh)receptors:

muscarinic ACh receptors (because muscarin as agonist) which are G-protein coupled receptors that initiate slow response. Mostly, they are located in the central nervous system-CNS (involved in the release of neurotransmitters), heart (control of the heart rate), smooth muscles (contraction).
nicotinic ACh receptors (nicotin is agonist) which are ligand-gated ion channels involved in the fast response. They are located at neuromuscular junctions but also in CNS (involved in synaptic transmission between two neurons).

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3 years ago

Answer Items:

Bezzdna [24]

Answer:

1.C.Biosphere

2.B.Geoshere

3.E.Atmosphere

4.D.Hydrosphere

5.A.Cryosphere

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3 years ago

During electron transport chain is in the process of cellular respiration, the proton motive force leads to a drastic lowering o

vodka [1.7K]

Answer:

The correct answer will be option-C.

Explanation:

The proton motive force is the force generated by the movement and difference of the charge inside and outside the membrane. The proton motive force is generated due to the electron transport chain as the flow of electron causes the movement of hydrogen ions from the matrix to the inter-membrane space.

This leads to the increase of H⁺ ion concentration in inter-membrane space and lowering of the H⁺ ions in the matrix. This difference in the charges causes the generation of force called proton motive force which helps the synthesis of ATP.

Thus, Option-C is the correct answer.

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3 years ago

Bill is trying to plan a meal to meet specific nutritional goals. He wants to prepare a meal containing rice, tofu, and peanuts

Anastasy [175]

Answer:

Bill needs to eat 5 Cups of rise, 1 cup of tofu and 4 cups of peanuts

Explanation:

Its simple calculations:

As Bill requirement is 350 grams of carbohydrates, 311 grams of Fats and 168 gram of proteins.

Each cup of rice provides 42 grams of carbohydrates, 0 grams of fat, and 1 gram of protein.

Each cup of tofu provides 4 grams of carbohydrates, 11 grams of fat, and 23 grams of protein.

Each cup of peanuts provides 34 grams of carbohydrates, 75 grams of fat, and 35 grams of protein.

If he eats 5 cups of rise than he gets 42 × 5 = 210 grams of carbohydrates. similarly he gets 0 × 5 = 0 grams of fats and 1 × 5 = 5 grams of proteins.

If he eats 1 cup of tofu than he gets 4 × 1 = 4 grams of carbohydrates. similarly he gets 11 × 1 = 11 grams of fats and 23 × 1 = 23 grams of proteins.

and If he eats 4 cups of peanuts than he gets 34 × 4 = 136 grams of carbohydrates. Similarly he gets 75 × 4 = 300 grams of fats and 35 × 4 = 140 grams of proteins.

GRAND TOTAL BECOMES

CARBOHYDRATES: 210+4+136=350 grams

FATS: 0+11+300= 311 grams

PROTEINS:5+23+140=168 grams

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3 years ago

I need help. Im pretty sure the answers are B, A, C, C but im not sure. Can someone help me? Questions are in the picture!!

Rzqust [24]

Answer: It is B, A, C and C

Explanation:

You were correct

3 0

3 years ago

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