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blondinia [14]
3 years ago
13

Humans need certain substances to make new cells and repair their tissues. Humans acquire these substances by eating nutritious

foods. Which of the following characteristics of life do the above statements best support? A. Living organisms respond to changes in their external environments. B. Living organisms use matter and energy for their life processes. C. Living organisms regulate their internal environments. D. Living organisms must be able to reproduce to promote their species' survival.
Biology
2 answers:
mrs_skeptik [129]3 years ago
6 0

Answer:

B.

Explanation:

Arturiano [62]3 years ago
5 0

Answer:

B. Living organisms use matter and energy for their life processes

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❥SCIENCE SUBJECT
Fiesta28 [93]

9514 1404 393

Answer:

  • time: 1.122 seconds
  • range: 10.693 m
  • maximum height: 1.543 m

Explanation:

<u>Given</u>:

  runner is launched at 30° angle to horizontal at 11 m/s

  acceleration due to gravity is g = -9.8 m/s²

<u>Find</u>:

  runner's hang time

  runner's distance to the landing point

  runner's maximum height

<u>Solution</u>:

The (horizontal, vertical) speed components will be ...

  (11 m/s)(cos(30°), sin(30°)) = (5.5√3 m/s, 5.5 m/s)

The time of flight can be found from the height formula:

  h(t) = 1/2gt² +vt . . . . . . where v is the vertical speed at launch

The time we're concerned with is the time when h(t)=0 and t>0.

  0 = -4.9t^2 +5.5√3t = t(-4.9t +5.5√3)

The second factor is zero when ...

  t = (5.5√3)/4.9 ≈ 1.122 . . . seconds hang time

__

The distance to the landing point will be the product of horizontal speed and hang time:

  d = (5.5 m/s)(5.5√3/4.9 s) ≈ 10.693 m . . . . distance to landing

__

The maximum height can be found from the formula (based on conversion of kinetic energy to potential energy) ...

  h = v²/|2g| = (5.5 m/s)²/(2(9.8 m/s²)) ≈ 1.543 m . . . . maximum height

4 0
2 years ago
How do<br> you<br> think<br> your<br> food sources<br> compare to the breakdown
uysha [10]

Answer:

What we eat matters. The food choices we make every day have a big effect on the environment. The good news is that even small changes in what we buy and eat can add up to real environmental benefits, including fewer toxic chemicals, reduced global warming emissions, and preservation of our ocean resources.

Explanation:

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2 years ago
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The baby is adopted by them because if it was born by the mother then the baby would have the same blood type A
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What is the relationship between mitosis and cell division
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<span>Mitosis is the usual method of cell division, characterized typically by the resolving of the chromatin of the nucleus into a threadlike form, which condenses into chromosomes, each of which separates longitudinally into two parts, one part of each chromosome being retained in each of two new cells resulting from the original cell.
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The Arctic tundra has wetlands caused by _____.
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