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Studentka2010 [4]
3 years ago
9

Potassium channel blockers (such as amiodarone and procainamide) are used to treat abnormal electrical activity of the heart. Th

ese drugs impede movement of K through voltage fated K channels. Which part of the action potential would you expect these drugs to most directly affect
Biology
1 answer:
Veseljchak [2.6K]3 years ago
8 0

Answer:

repolarization  

Explanation:

Potassium channel blockers are drugs that interfere with the flow of potassium ions (K+) through potassium channels in cell membranes, thereby prolonging the duration of the action potential (repolarization phase). For example, amiodarone is a class III antiarrhythmic agent whose target is HERG human cardiac K+ channel. This drug (amiodarone) acts by prolonging the repolarization phase of the cardiac action potential.

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Homeostasis:

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List five reasons to explain why the leaf is specialized for its function.​
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Answer:

has transparent epidermis to allow light to pass for photosynthesis

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3 years ago
1. Describe the staggering challenge that Velings describes at the beginning of his talk.
ozzi

The staggering challenge that Velings describes at the beginning of his talk is option B:  B. Depleting food resources as our population grows.

2. In 35 years when there are 2.7 billion more of us, the solution given that we will still be sharing the same resources is option D. All of the above

A. Aquaculture

B. Use the ocean as farmers instead of hunters

C. Sustainable fishing

Some of the reasons Velings gives for fish being the best possible food are:

A. Exciting and diverse variety

C. Provides key amino acids and fatty acids

F. Prevents heart disease

Some issues with the current state of the aquaculture industry that contribute to its bad reputation is option F. All of the above:

A. Fisheries are badly managed.

B. Fisheries deplete mass amounts of fish to use as fish meal.

C. Fisheries often use a large amount of chemicals.

D. Fisheries can alter the genetic pool.

E. Many fisheries use unsustainable fish-feed ingredients.

<h3>What is Mike Velings talks about?</h3>

Industrial aquaculture has had a wide range of negative effects on the environment, including the overfishing of wild fish to feed carnivorous farmed fish and the escape of farmed fish from their containment, which endangers local wild fish populations.

Lastly, in the words of Mike Velings, We are approaching a worldwide food crisis, he said. At our current rate, we are already taking more fish from the ocean than it can naturally replace, despite the fact that almost 3 billion people rely on the ocean for their food. Mike Velings, an entrepreneur and conservationist, offers a solution in this fact-filled, eye-opening talk: the practice of farming fish. "We need to stop hunting the ocean and start farming it,"

Learn more about Depleting food resources  from

brainly.com/question/9796760
#SPJ1

See full question below

(4.2) Unit 4 Lab Questions- Portfolio (1-6, 1-6)

Part 2 - Please watch the following video and answer the questions that follow.

Mike Velings: The case for fish farming

https://youtu.be/a7cDt5r2pGY

What is the staggering challenge that Velings describes at the beginning of his talk? (1 point)

A. Water pollution affecting the fish farms.

B. Depleting food resources as our population grows.

C. Climate change reducing the amount of fresh fish available

(4.2) Unit 4 Lab Questions- Portfolio (1-6, 1-6)

2. In 35 years when there are 2.7 billion more of us, what is the solution given that we will still be sharing the same resources? (1 point)

A. Aquaculture

B. Use the ocean as farmers instead of hunters

C. Sustainable fishing

D. All of the above

E. None of the above

(4.2) Unit 4 Lab Questions- Portfolio (1-6, 1-6)

3. What are some of the reasons Velings gives for fish being the best possible food? (check all that apply) (1 point)

A. Exciting and diverse variety

B. Reduces the rate of cancers

C. Provides key amino acids and fatty acids

D. Makes people more intelligent

E. Allows the land animals to increase their populations

F. Prevents heart disease

What are some issues with the current state of the aquaculture industry that contribute to its bad reputation? (1 point)

A. Fisheries are badly managed.

B. Fisheries deplete mass amounts of fish to use as fish meal.

C. Fisheries often use a large amount of chemicals.

D. Fisheries can alter the genetic pool.

E. Many fisheries use unsustainable fish-feed ingredients.

F. All of the above

G. None of the above

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Answer: Giving birth only in the spring and summer ensures that offspring are born when food is most available.

Explanation:

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Answer:

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Because plants reproduce like humans. It may seem like it is the wrong answer but it is right. I learned this in eighth grade my guy.

Explanation:

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