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3 years ago

An element is made of many different types of atoms all together. True False

Biology

2 answers:

worty [1.4K]3 years ago

3 0

It is definitely not true so it’s false

Blizzard [7]3 years ago

3 0

Answer:

FALSE

Explanation:

A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing just one proton and one elect

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Directions: Select each correct answer. More than one answer may be correct. It has been theorized that all of the modern contin

Firdavs [7]

the answer to this question is all of these (a,b,c)

3 0

3 years ago

Read 2 more answers

A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (

Paul [167]

Answer:

frequency of the blue (B) allele $= 0.4142$

frequency of the red (R) allele $= 0.5858$

The number of blue plants expected is $509.652$

The number of red plants expected is $1019.304$

The anticipated number of violet plants is $1441.341$

Calculated chi square value

$= 84.5320 + 42.5688 + 119.8692\\= 246.97$

Explanation:

Frequency of blue allele is

Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

$\frac{302}{2970} + \frac{1}{2} \frac{1857}{2970} \\= 0.1016 + 0.3126\\= 0.4142$

Frequency of other allele

$1- 0.4142\\= 0.5858$

Chi Square test

See the attached file

The number of blue plants expected is $509.652$

The number of red plants expected is $1019.304$

The anticipated number of violet plants is $1441.341$

Calculated chi square value

$= 84.5320 + 42.5688 + 119.8692\\= 246.97$

7 0

3 years ago

How do humans interfere in the carbon cycle?

stich3 [128]

Answer:

Humans burn fossil fuels, clear trees, change land use, creating smog that traps the carbon in the Earth's atmosphere, leading the oceans to absorb the heat and eventually end up with global warming and ocean acidification.

Explanation:

Good luck <3

4 0

3 years ago

Cause somebody plz help me

svetlana [45]

Earthquakes because they shift the plates.

7 0

3 years ago

In prehistoric times volcanic eruptions caused mass extinctions of many species of marine organisms attached to the ocean floor.

djyliett [7]

Answer: A). Volcanic eruptions change the pH and temperature of the ocean.

Explanation:

Volcanic eruption from an oceanic floor likely to release gases, sediments which can be of high temperature. The sediements will increase the turbidity in the water and will change the pH and the high temperature may not be tolerated by plants and animals. This may be the result of extinction of many species of marine ecosystem.

8 0

3 years ago