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vampirchik [111]
3 years ago
11

The stars of the Milky Way emit a bright, white arc of light that has a story rooted in Greek mythology. True False

Biology
2 answers:
melamori03 [73]3 years ago
6 0
-------------------------

This is true

-------------------------
Levart [38]3 years ago
6 0

Answer:

True

Explanation:

  • Young, hot stars emanate light in bright wavelengths which, thus, warms the encompassing hydrogen gas. U
  • There are outstanding groups, wisps of discharge from supernova leftovers, and articulated dusty retention highlights encompassing star-framing districts and sub-atomic mists in the Milky Way's plate.  
  • As per the Greek mythology, Andromeda heavenly body is situated in the northern sky, between Cassiopeia's W asterism and the Great Square of Pegasus.  
  • The heavenly body was named after the legendary princess Andromeda, the spouse of the Greek saint Perseus. It is otherwise called the Chained Maiden, Persea (spouse of Perseus), or Cepheis (little girl of Cepheus). Andromeda was first classified by the Greek space expert Ptolemy in the second century.
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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).

4 0
3 years ago
1. A fossil is determined through radioactive dating to be 1.5 million years old. This is an example of *1 point
guajiro [1.7K]
C)fossil aging and no i did not use google i knew this from 7th grade

6 0
3 years ago
Someone please answer this question !!! I’m sorry for spamming but I’m having a panic attack
VARVARA [1.3K]

Answer:

if you're talking not apart of the theory, it would be b, I believe.

Explanation:

3 0
2 years ago
Use the model here to describe the transfer of matter and flow of energy from one trophic level to another within an ecosystem.
Andrews [41]

The food chain and food web are used to transfer energy. Plants, who are the primary energy providers in the ecosystem, use their chloroplasts to collect sunlight, which is then partially converted into chemical energy during photosynthesis.

a)

  • When herbivores eat (are the primary consumers of) plants as food, this energy is transferred to the primary consumers in the food chain.
  • This energy is stored in various organic products in plants. Then, the chemical energy contained in plant products is converted into kinetic energy, degrading the energy by turning it into heat. The secondary consumers come next.
  • Further deterioration will occur when these herbivores are consumed by secondary consumers.
  • Finally, energy will once more be destroyed when tertiary consumers eat the carnivores. As a result, the energy flow is only in one direction i.e., unidirectional.

b)

  • Additionally, the energy flow in a food chain adheres to the 10% law.
  • This law states that only 10% of energy is transferred from one trophic level to the next, with the remaining 90% being lost during the digestion process of the organism itself.

c)

  • There are typically fewer organisms at the top of an energy pyramid because It has the least quantity of energy, the top level of an energy pyramid has the fewest organisms.
  • Most ecosystems only have four trophic levels because there is eventually insufficient energy to maintain further trophic levels.

d)

  • For instance, let us assume that a plant at the producer level produces 1000 Kcal of energy.
  • When a primary producer eats this plant, it will only get 10% of the energy produced by the plant i.e., 1000/10 = 100 Kcal. the rest 90% will be used up by the plant itself for its metabolism.
  • Further when a secondary consumer eats the primary consumer, it will only get 10% of the energy produced by the plant i.e., 100/10 = 10 Kcal.
  • Lastly, as the tertiary consumer eats the secondary consumer, it will only get 10/10 = 1kcal.

learn more about ecosystem here: brainly.com/question/842527

#SPJ10

4 0
2 years ago
A) Chromosomes pair in step 2.
kramer

Answer:b

Explanation:

B

4 0
2 years ago
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