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3 years ago

PLEASE ANSWER THIS QUESTION AS SOON AS POSSIBLE! 20 Pts

Chemistry

2 answers:

lidiya [134]3 years ago

7 0

We have learned that all organisms have many the answers is a tiger

goldfiish [28.3K]3 years ago

4 0

Bird, Tiger, and the Leech

1.) Movement

All living things move in some way. This may be obvious, such as Tigers are able to walk, or less obvious, such as plants that have parts that move to track the movement of the sun.

Leeches use circular and longitudinal muscles to move along

2.) Growth

All living things grow. For example the Blue Jay (bird) pictured above started out as an egg and developed into a bird

3.) Excretion

No matter what living thing it is, everything gives off waste. For example a leeche poops out it’s unneeded “nutrients”

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A fruit-and-oatmeal bar contains 142 nutritional Calories. Convert this energy to calories

madreJ [45]

Answer:

a fruit and oatmeal bar contains 142000 calories.

A nutritional calorie, or kilocalorie, is equal to 1000 calories.

E = 142 kcal · 1000 cal/kcal.

E = 142 000 cal.

Calorie (cal), or small calorie, is the amount of energy needed to heat one gram of water by one degree Celsius.

One small calorie is approximately 4.2 joules.

A calorie is a unit of energy.

Explanation:

hope it helps :)

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3 years ago

Part A A compass contains a magnet. The magnet responds to Earth's magnetic field. The magnet's north pole points north from mos

valentina_108 [34]

Answer:

The Earth's magnetic field intensity is roughly between 25,000 - 65,000 north magnetic pole is 86.50°N and 164.04°E and the south magnetic pole is 64.07°S and 135.88°E

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2 years ago

USATESTPREP WILL GIVE BRAINLY

natali 33 [55]

Answer:

regulate state trades

redistributing income

provide

Explanation:

3 0

3 years ago

Read 2 more answers

HELP ME NOW ASAP PLEASE, 10 POINTS HURRY

xxMikexx [17]

Which of those depend on mayfly nymphs. In other terms which animal eats mayfly nymphs?

I would say frogs

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3 years ago

antimony has two naturally occuring isotopes, sb121sb121 and sb123sb123 . sb121sb121 has an atomic mass of 120.9038 u120.9038 u

Luda [366]

Considering the definition of atomic mass, isotopes and atomic mass of an element, sb121 has a percent natural abundance of 0.5726 or 57.26% and sb123 has a percent natural abundance of 0.4284 or 42.84%.

<h3>Definition of atomic mass</h3>

The atomic mass is obtained by adding the number of protons and neutrons in a given nucleus of a chemical element.

<h3>Definition of isotope</h3>

Isotopes are the chemical elements in which atomic numbers are the same, but the number of neutrons is different.

<h3>Definition of atomic mass</h3>

The atomic mass of an element is the weighted average mass of its natural isotopes.

This is, the atomic masses of elements are usually calculated as the weighted average of the masses of the different isotopes of each element, considering the relative abundance of each of them.

<h3>Percent natural abundance of each isotope</h3>

In this case, antimony has two naturally occuring isotopes, sb121 and sb123. You know:

sb121 has an atomic mass of 120.9038 u.
sb121 has a percent natural abundance of x.
sb123 has an atomic mass of 122.9042 u.
sb123 has a percent natural abundance of 1 -x (or, what is the same, the abundance is 100% - x%, since both isotopes form 100% of the element.)
Antimony has an average atomic mass of 121.7601 u