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Allushta [10]
3 years ago
8

Help! i’ll give brainliest

Biology
1 answer:
valentinak56 [21]3 years ago
8 0

Answer:

D

Explanation:

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A researcher performs an experiment to test a hypothesis that involves the nutrients niacin and retinol. She feeds one group of
julsineya [31]

Answer:

- 100 grams of food A (x)

- 60 grams of food B (y)

Explanation:

According to this question, the group of laboratory rats are being fed a daily diet of:

- 125.6 units of niacin and 5,400 units of retinol

Let x represent the number of grams needed for food A.

Let y represent the number of grams needed for food B.

This means that:

Food A: Niacin = 0.86x, Retinol = 30x

Food B: Niacin = 0.66y, Retinol = 40y

Since there are 125.6 units of niacin fed to the rats in total, then;

0.86x (A) + 0.66y (B) = 125.6

Since there are 5400 units of retinol fed to the rats in total, then;

30x (A) + 40y (B) = 5400

Solving these two equations simultaneously using elimination method:

0.86x (A) + 0.66y (B) = 125.6 ........(eqn 1)

30x (A) + 40y (B) = 5400 ............ (eqn 2)

Multiply eqn 1 by 30 and eqn 2 by 0.86

30 × 0.86x + 0.66y = 125.6

0.86 × 30x + 40y = 5400

25.8x + 19.8y = 3768 ............ (eqn 3)

25.8x + 34.4y = 4644 ........... (eqn 4)

Subtract eqn 3 from eqn 4

14.6y = 876

Divide both sides by 14.6

y = 876/14.6

y = 60

Substitute value for y (60) into eqn 2

30x + 40y = 5400

30x + 40(60) = 5400

30x + 2400 = 5400

30x = 5400 - 2400

30x = 3000

x = 3000/30

x = 100

Therefore, she feeds the group of rats 100grams of food A (x) and 60 grams of food B (y).

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The body prefers to use fat or carbohydrate for energy, but when total energy or carbohydrate intake is low, protein may be used
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Answer:

phosphorylation is the blank

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What is the measurement of the force of gravity pulling down on an object
OleMash [197]
The measurement of the force of gravity pulling down an object is called weight, which is basically what you see when you step on a scale.
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What type of adaptation is shown in Figure 15-2?
DerKrebs [107]
It’s A:Mimicry!

Because the stick bug is camouflaging itself to look like a plant to hide from predators. hope this helps!
5 0
2 years ago
1. The Bureau of Land Management manages over ________ acres of land in the United States. (Points: 7) A.) 260 million B.) 100 m
RSB [31]
<h3>Answer 1.  </h3><h2>(A) 260 million </h2>

The Bureau of Land Management (BLM) is a bureau within the United States Department of the Interior that manages larger than 247.3 million acres of public properties in the United States which aggregates one-eighth of the landmass of the country. The purpose of the BLM is "to maintain the well-being, diversity, and richness of the public properties for the performance and satisfaction of present and future ages.  

<h3> Answer 2.</h3><h2>(C) Burro </h2>

Burro is a tiny donkey, particularly one worked as a pack animal in the southwestern U.S. The donkey is a trained division of the horse race, Equidae. The wild relative of the donkey is the African eager burro. The donkey has been utilised as a labouring animal for at least 5000 years.  

<h3>Answer 3. </h3><h2>(B) Wild Horse Annie </h2>

Velma Bronn Johnston (often Johnson) was one of the opinions responsible for obtaining governmental jurisdiction over wild horses and burros on public property. The Wild Free-Roaming Horses and Burros Act was approved into authority in 1971 after passing both Houses of Congress without a dissenting vote. The Bill originally built a command that the uncontrolled custom of “mustanging” was illegal and wild horses and burros would be handled humanely as “essential to the landscape” as “living representatives of the pioneer spirit of the West.”

<h3>Answer 4.  </h3><h2>(C) Mustangers  </h2>

Mustangers are commonly known as horse thief. The one who spins up wild horses on the public range and markets them particularly for horse meat. This is the reason Velma B. Johnson raised her voice against such acts, which according to her were inhuman.  

<h3>Answer 5. </h3><h2>(A) Grasses </h2>

As herbivores, elk only eats vegetables. In spring and summer when feed is rich, elk are mainly grazers. They originally eat grasses, sedges and a mixture of flowering plants. As summer shifts to fall, elk frequently become browsers, serving on sprouts and limbs of plants and trees. Through winter, elk resume to eat grasses when these are accessible and not coated by deep snow.

<h3>Answer 6. </h3><h2>(C) Bears  </h2>

Bears are carnivoran mammals of the genus Ursidae. They are labelled as caniforms or doglike carnivorans. Although only eight kinds of bears are extant, they are widespread, appearing in an extensive variance of habitats throughout the Northern Hemisphere and somewhat in the Southern Hemisphere.

<h3>Answer 7. </h3><h2>(B) Wolves  </h2>

Yellowstone wolves are creating a tropical cascade of environmental variation, including accommodating to improve beaver communities and bring back aspen, and vegetables. Yellowstone wolves are creating a tropic cascade of environmental variation, including accommodating to improve beaver communities and bring back aspen, and vegetables. The amount of wolves in Yellowstone National Park has extended to improve amid a push to eliminate the grey wolves from federal security. New figures from the park explain that there were at least 104 wolves in 11 packs in Yellowstone, including nine breeding pairs, with 40 pups lasting till the end of the year.


<h3>Answer 8.</h3><h2>(A) Precipitation</h2>

In meteorology, precipitation is any result of the condensation of atmospheric water vapour that drops beneath gravity. The foremost forms of precipitation include drizzle, rain, sleet, snow, graupel and hail. Precipitation is one of the three principal methods (evaporation, condensation, and precipitation) that aggregate the hydrologic cycle, the constant transfer of water between the atmosphere and Earth's surface.


<h3>Answer 9.</h3><h2>(C) Cattle and horses</h2>

The California Department of Fish and Wildlife, earlier acknowledged as the California Department of Fish and Game, is a welfare agency under the California Natural Resources Agency. The Department of Fish and Wildlife regulates and preserves the state's fish, wildlife, plant and natural environments.


<h3>Answer 10.</h3><h2>(B) Environmentalists</h2>

An environmentalist is a supporter of the purposes of the environmental evolution. It is considered to be a political and ethical progress that attempts to enhance and preserve the quality of the natural environment through modifications to environmentally destructive human movements.

6 0
3 years ago
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