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3 years ago

11

The skeletal system of animals provides structure and support. Which cell part provides a similar function in a plant cell? NEED

ANSWER FAST!!!

1 answer:

12345 [234]3 years ago

7 0

Its the large central vacuole.

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Which of the following is true of environmental changes?

monitta

I think the correct answer from the choices listed above is option B. With regards to environmental changes, they may affect several populations in an ecosystem because it is where living organisms dwell and they try to adjust accordingly to these changes. Hope this answers the question.

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3 years ago

What are potential risks to earth from solar activity?.

KIM [24]

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Explanation:

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2 years ago

Read 2 more answers

In nuclear fission and fusion reactions mass is converted into energy. The average person in US uses around 100,000,000 J of ene

daser333 [38]

Answer:

a) The yearly energy consumption for a US population of 300 million is $3\times 10^{16} J/year$

b) The energy that would be released if a 60 kg person were converted entirely into energy is $5.4\times 10^{18}$ Joules.

c) 180 years would this amount of energy support a population of 300 million.

Explanation:

a) Average energy consumed by single person of US = 100,000,000 J/year

Then 300 million US citizen will consume:

300 million = 300 × 1,000,000 = $3\times 10^8$

The yearly energy consumption for a US population :

$100,000,000 J/year\times 3\times 10^8=3\times 10^{16} J/year$

The yearly energy consumption for a US population of 300 million is $3\times 10^{16} J/year$

b) $E = m\times c^2$

E = Energy from converted mass of m

c = speed of light

Given mass of person = m = 60 kg

$E=60 kg\times (3\times 10^8 m/s)^2 = 5.4\times 10^{18} J$

c) Energy calculated in part (b) = $E=5.4\times 10^{18} J$

The yearly energy consumption for a US population of 300 million in an year = $3\times 10^{16} J/year$

Let the that would be supported by $5.4\times 10^{18}$ Joules of energy be x.

$x\times 3\times 10^{16} J/year=5.4\times 10^{18} J$

$x=\frac{5.4\times 10^{18} J}{3\times 10^{16} J/year}=180 years$

180 years would this amount of energy support a population of 300 million.

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3 years ago

PLS HELP!!! WILL MARK BRAINLIEST!!! THANK YOUU

Harman [31]

B is the best answer

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2 years ago

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This is 20 POINTS !!!!!!!! PLZ HELPP

jeka94

Answer:

Explanation: It is to eat smaller insects and to eat animal carcuss or bacteria from the bigger animals body. A food web is a type of setting like a woodland place, a desert a rainforest and so on. And then it explains what animals live in the setting and what smaller animals they eat

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2 years ago