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Feliz [49]
3 years ago
12

Question 23

Biology
1 answer:
mojhsa [17]3 years ago
7 0
<h2>Answer:</h2>

<u>Atom</u> is the primary as well as smallest unit of element.

<h2>Explanation:</h2>

Atoms are the tiny blocks that build elements. They are composed of proton, electron, and neutron. The electron is negatively charged, protons are positively charged, and neutrons are devoid of any charge.

The atom present in the elements combine with one another and leads to the formation of molecules. The property of the atom remains unchanged even after involved in formation of new molecules. When two atoms combine together it is called as molecules.

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Please help on this i need this very much
Juli2301 [7.4K]

Answer:

The answer is C

Explanation:

This is also like in the state of diffusion

Diffusion is the process. by which substances mix thoroughly and intimately together with one another due to their random motion of particles

4 0
2 years ago
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HAPPY NEW YEARS !!! CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST !!!
sp2606 [1]

Answer:

According to the image shown, the country that most closely resembles the population pyramid by age is the United States (option A).

Explanation:

The population pyramid consists of a bar chart that groups the population by age and sex. Each sex is separated into two columns, while from the base to the top the ages are grouped from lowest to highest.

The pyramid by age shown in the image corresponds to a developed country, such as the United States, since the distribution of the population of infants and young people is proportional, being more acute in the advanced ages, acquiring the shape of a bottle.

The "bottle" shape of the population pyramid indicates a controlled birth rate, as well as good availability of basic and sanitary resources, characteristic of a developed country like the United States.

The other options are not correct because:

<em>     C and D. In developing countries such as </em><u><em>Nigeria and Ethiopia</em></u><em>, the birth rate is high - forming a broad base - and the resources available are limited, so there is a progressive decrease as the age groups are distributed, giving a true pyramid shape. </em>

<em>     B. </em><u><em>Italy</em></u><em>, a European country, has a tendency to rhomboidal population pyramids. This is due to a predominance of adult, young and mature, population, low birth rate, good basic and sanitary resources.</em>

6 0
3 years ago
Why are thylakoids critical for life on Earth?
True [87]
............................
6 0
3 years ago
An event that restricts the size of a population such as weather events like drought or flood is likely a
DanielleElmas [232]

Answer:

The correct answer is - 2) density-independent limiting factor.

Explanation:

Density-independent limiting factors are the factors that cause a change in the size of the population without getting influenced by the density of the population.

Density-independent limiting factors include biotic or abiotic factors with catastrophic conditions such as natural disasters such as floods, earthquakes, drought, fires, and many more.

Drought affects the size of the population by increasing competition in the ecosystem for resources.

5 0
3 years ago
Which descriptions of evolution are accurate? Select three options.
Gemiola [76]

Answer:

2 4 5

Explanation:

or b d e evolution is not an individual occurrence

6 0
3 years ago
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