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2 years ago

explain why eating down a food chain," vegetables instead of meat for example, is more energy efficient

Biology

1 answer:

Brut [27]2 years ago

4 0

Answer:

I would say that meat is more energy efficient than vegetables because meat have more calories than vegetables do. Calories equal energy. For example, vegetables have an average calorie of 10 - 90 calories. While meat has 100 - 1200 calories. So, if calorie equals energy, I would say that calories are the reason why meat has more energy in it.

Explanation:

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What causes variations in asexual organisms?

Nezavi [6.7K]

Variations in asexual organisms are rather rare since they occur as a result of mistake of mitosis during DNA copying. On the other hand, variations in sexual organisms are a result of fusion of two different gametes that carry different traits. Thus, the offspring carries characteristics of both parents, resulting in greater genetic variation within the next generation. Consequently, sexual organism obtain greater genetic variation than asexuallt reproducing species.

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2 years ago

Why were physical activity and caffeine and alcohol intake the controlled variables?

Deffense [45]

Controlled variable is a variable that was made constant in the research. That was because the controlled variables can influence the dependent or independent variable. If the variables is not made constant, it can alter the research result and made it invalid.

In this case, the caffeine and alcohol intake might alter the physical activity or the blood glucose so it should be controlled.

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2 years ago

Which diuretic remains effective when creatinine clearance drops below 25 ml/min?

OLga [1]

Loop Diuretics

These are diuretics that exerts effect on the loop of Henle. They are primarily used in heart failure, hypertension and edema. In contrast with Thiazides, loop diuretics are more effective in patients with abnormal kidney function. Loop diuretics inhibit the magnesium and calcium reabsorption in the thick ascending limb of Henle. Loop diuretics is highly protein bound. It has volume of distribution that is limited. This causes the diuretics to be secreted in the convuluted tubules to exert its function.

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3 years ago

Which of these gymnosperms are known to be important in maintaining the balance of carbon in an ecosystem?

CaHeK987 [17]

The correct answer is: [D]:

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→ " redwood tree forests " .

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Note: Let us consider the other answer choices.

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Choice: [A]: "garden flowering plants" ; is incorrect — since these are not generally considered to be part of a true or traditional "ecosystem" ; and especially since "garden flowering plants" are, in fact, "flowering plants" — which means that they are "angiosperms" — Not "gymnosperms ".

→ Rule out: " Choice: [A] " .

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Choice: [B]: " ferns and liverworts " ; is incorrect — since both ferns — as well as liverworts — are Not "gymnosperms ".

Liverworts are "bryophytes" {which lack true vascular tissue] ; and ferns are "pterophytes" ["seedless vascular plants"].

→ Rule out: " Choice: [B] " .

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Choice: [C]: " mosses and horsetails "; is incorrect ; since both mosses — as well as horsetails — are Not "gymnosperms ". Mosses are "bryophytes" (see aforementioned) ; and horsetails are "non-seed bearing plants" that spread vegetatively [underground; by asexual reproduction — and Not by seed .].

→ Rule out: " Choice: [C] " .

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Choice: [D]: " redwood tree forests " ;

— is the only answer choice provided that is a "gymnosperm".

Furthermore, the "redwood tree" is a conifer (i.e. "coniferous; or, "cone-bearing" plant} that reproduces through seeds spread by "cone") — and all "conifers" are a type of "gymnosperm."

Furthermore, "redwood trees" grow large and tall, and redwood forest communities within an ecosystem; due to there size and presence, are: "known to be important in maintaining the balance of carbon in an ecosystem."

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→ As such, the correct answer is:

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→ Answer choice: [D]: " redwood tree forests " .

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Hope this helps!

Best wishes to you in your academic endeavors

— and within the "Brainly" community!

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5 0

3 years ago

Read 2 more answers

Aerobic respiration happens in what cellular organelle?

kolbaska11 [484]

Aerobic respiration happens in the mitochondrion of eukaryotic cells.

Anaerobic respiration does not use oxygen gas and happens in one process after glycolysis called Fermentation.

The process used to make beer would be a kind of fermentation, Alcohol fermentation, I believe.

4 0

3 years ago