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Agata [3.3K]
2 years ago
14

The key element found in compounds?​

Biology
2 answers:
Alex Ar [27]2 years ago
6 0

The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen.

Arisa [49]2 years ago
6 0

Answer:

carbon dioxide CO2 carbon (C) and oxygen (O)

sodium chloride NaCl sodium (Na) and chlorine (Cl)

sodium hydroxide NaOH sodium (Na), oxygen (O) and hydrogen (H)

calcium chloride CaCl2 calcium (Ca) and chlorine (Cl)

Explanation:

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Which statement is correct concerning the process of ecological succession? Shrubs will replace pines during succession. Primary
Mariana [72]

Answer:

Option (2).

Explanation:

Ecological succession is the change in the ecological community of the species with respect to time. Two  types of the succession are  secondary succession and primary succession.

The ecological succession includes various transitional stages before reaching to the climax community. The simple species acquires first and then the climax species is reached at the end of the succession. Different changes are involved in the formation of climax community.

Thus, the correct answer is option (2).

3 0
3 years ago
What is the basic unit of a nucleic acid?
Dimas [21]

The basic repeating unit of nucleic acids are known as nucleotides

7 0
3 years ago
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What's the elements of iron​
Nitella [24]

Answer:

Fe

Explanation:

Iron is a chemical element with symbol Fe and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen, forming much of Earth's outer and inner core

7 0
2 years ago
Question 4
lawyer [7]
<h2>Answer:</h2>

The principle is <u>4) Archimedes' principle</u>.

<h2>Explanation:</h2>

Archimedes principle, found by the old Greek mathematician and creator Archimedes, expressing that any object totally or incompletely submerged in a liquid (gas or fluid) very still is followed up on by an upward, power the size of which is equivalent to the heaviness of the liquid dislodged by the body.

The volume of dislodged liquid is identical to the volume of an item completely drenched in a liquid or to that portion of the volume underneath the surface for an article halfway submerged in a fluid. The heaviness of the uprooted bit of the liquid is comparable to the extent of the buoyant force.

8 0
2 years ago
Read 2 more answers
(15 points) Aerobic cellular respiration takes place in the mitochondria and uses oxygen to break down glucose. However, when ce
marusya05 [52]

Answer:

There are two kinds of respiration: Aerobic and Anaerobic. ... Aerobic respiration takes place in the presence of oxygen, produces a large amount of energy. Carbon dioxide and water are produced as the waste products. Anaerobic respiration takes place without the use of oxygen, produces small amounts of energy.

Explanation:

I looked it up for u :D

5 0
2 years ago
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