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Svetradugi [14.3K]
3 years ago
13

Mayfly Larva are sensitive to pollution. What would happen if a disaster struck such as pollution in the stream? SELECT ALL THAT

APPLY
Group of answer choices

Organisms that are eaten by the mayfly will increase

Organisms that eat mayfly would consume more of other organisms in their diet

no effect

Organisms that eat mayfly will decrease at firs
Biology
1 answer:
svp [43]3 years ago
4 0

Answer:

<em>Organisms that are eaten by the mayfly will increase.</em>

<em>Organisms that eat mayfly will decrease at first.</em>

<em>Organisms that eat mayfly would consume more of other organisms in their diet</em>

Explanation:

her get killed or they will migrate from the stream that is polluted. The population of the organisms on which the mayfly larva fed would increase as it will have a lesser number of predators now.

On the other hand, the organisms which fed on the mayfly would decrease at first as they will have a lesser amount of food available. They might find another source of food in order to survive.

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Which best describes the purpose of president kenney peace corps program ​
finlep [7]

Answer:

To help in developing nations, by improving health care, agriculture, and other areas.

Explanation:

President Kennedy wanted to have what the Soviet Union had. He wanted the United States also to be connected in actively pursuing the cause of global democracy, development, peace, and freedom. The Peace Corps was established on March 1, 1961, as mandated by the Executive Order signed by President Kennedy. It was done to give social and economic development abroad, using technical assistance. While increasing mutual understanding between Americans and populations served.

6 0
3 years ago
2. During photosynthesis, carbon dioxide and (oxygen / sodium chloride / water I
Westkost [7]

Answer:

water for first

sugar for second

oxygen for third

7 0
2 years ago
Which condition leads to a slower rate of weathering?
UkoKoshka [18]

Answer:

Cold climates

Explanation:

7 0
2 years ago
Action potentials (nerve impulses) are changes in the membrane potential that, once started, will affect the entire excitable me
stich3 [128]

Answer:

The order of events would be:

4.Threshold stimulus, Na+ channels open.  This is the first event

5.Na+ influx, Depolarization. Second event

2.Na+ channels close, K+ channels open.  This is the third event

1.K+ efflux, Repolarization.  Fourth event

3.Hyperpolarization, K+ channels close

Explanation:

In resting state, the membrane is negative inside, and  K+ concentration is higher than outside.   Na+ concentration is higher outside instead.  

Sodium influx is responsible for membrane depolarization.  It's the event to produce the action potential.  When sodium channels are closing, potassium channels open and K+ go outside until repolarization occurs. But now we have both ions in different sides of the membrane, and this can't be stimulated again to produce other action potential. The membrane will remain refractory to respond to the adequate stimulus until ions migrate to their original sites.  This is Na+ outside, and K+ inside.  This is responsibility of the Na+/ K+ pump, that uses ATP to pump Na+ out, and  K+ in. Once both ions had been relocated in the membrane, this is ready to receive a correct stimulus to produce a new action potential.

6 0
3 years ago
The concentration of cholesterol (C27H46O) in blood is approximately 5.0mM. How many grams of cholesterol are in 315mL of blood
ASHA 777 [7]

The weight of cholesterol is 0.6 g.

Here use the concept of molarity.

<h3>What is molarity?</h3>

The amount of a substance in a specific volume of solution is known as its molarity (M). The moles of a solute per liter of a solution is known as molarity.

Molarity = no. of moles/volume (in L)

<h3>Calculation:</h3>

Given,

Molarity, M = 5.0 mM = 5 × 10⁻³ M

Volume, V = 315 mL = 315 × 10⁻³ L

To calculate,

Weight of cholesterol =?

We know that,

Molecular mass of cholesterol, C₂₇H₄₆O = 386

No. of moles = weight/ molecular mass

The formula is modified as,

Molarity = weight of cholesterol/ (molecular mass) (Volume)

Put the values in the formula,

5 × 10⁻³ = weight of cholesterol/ (386) (315 × 10⁻³)

Weight of cholesterol = 5 × 10⁻³  (386) (315 × 10⁻³)

                                    = 0.6 g

Hence, the weight of cholesterol is 0.6 g.

Learn more about molarity here:

brainly.com/question/13386686

#SPJ4

8 0
1 year ago
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