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GarryVolchara [31]
3 years ago
14

Where do organisms obtain the energy they need

Physics
2 answers:
Anastaziya [24]3 years ago
7 0

Answer:

substrates

.....................

rodikova [14]3 years ago
4 0

Answer:

autotrophs and heterotrophs. Autotrophs (producers) use energy directly from the sun or from chemicals to produce organic molecules. Photoautotrophs such as plants use energy from sunlight to make organic compounds by photosynthesis.

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Which is heavier 1kg of iron or 1 kg of feathers?
Tema [17]

-- On Earth, 1 kg of anything weighs 9.81 Newtons (2.205 pounds). It doesn't matter what substance comprises the kilogram.

-- Although their weights are identical, any mass of feathers occupies more volume than the same mass of iron, no matter where they happen to be located.

-- Iron is more dense than feathers, and more dense than a lot of other substances as well, too.

7 0
4 years ago
Which statement is a hypothesis?
olga_2 [115]
B, do earthworms prefer bright light or darkness!
3 0
3 years ago
Read 2 more answers
You drive 4 km at 30 km/h and then another 4 km at 50 km/h. What is your average speed for the whole 8-km trip?
Setler79 [48]

Answer:

option A

Explanation:

given,

drive 4 km at 30 km/h and

another 4 km at 50 km/h

average speed for the whole 8 Km trip = ?

time for the trip of first 4 km

 distance = speed x time

t_1 = \dfrac{d}{s}

t_1 = \dfrac{4}{30}

     t₁= 0.1333 hr

time from another 4 km trip

t_2 = \dfrac{d}{s}

t_2= \dfrac{4}{50}

     t₂ = 0.08 hr

average speed

     s= \dfrac{d}{t}  

     s= \dfrac{8}{0.1333 + 0.08}  

     s= \dfrac{8}{0.2133}  

            s = 37.50 Km/hr

Less than 40 Km/h

the correct answer is option A

6 0
3 years ago
I need help picture above
maw [93]

Answer:

99.75 is the correct answer

6 0
3 years ago
4. What two terms are sometimes used to indicate opposite directions from a point?
ivolga24 [154]
<h2><em>What two terms are sometimes used to indicate opposite directions from a point?</em></h2>

  • <em>The terms <u>positive and negative</u> can be useful when giving opposite directions from a reference point.</em>

<em>hope </em><em>it</em><em> helps</em>

<em>#</em><em>c</em><em>a</em><em>r</em><em>r</em><em>y</em><em> </em><em>on</em><em> learning</em>

8 0
3 years ago
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