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swat32
3 years ago
13

The atomic number of an element is equal to its number of which subatomic particle

Biology
1 answer:
Lynna [10]3 years ago
7 0

The number of electrons/protons (both are the same number) is equal to the atomic number.

Brainliest please :)


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Heehee help me please
UkoKoshka [18]

Answer:

Im pretty sure its B.

Explanation:

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5 0
4 years ago
What is the difference between a mature and immature animal?
Schach [20]

Answer:

A mature animal will  have been fully developed whereas an immature animal will not be fully developed. In a mature animal, all stages of development will have occurred whereas in an immature animal not all developmental stages would have occurred.

A mature animal will be better adapted to live in an environment as compared to an immature animal.

3 0
3 years ago
The lungs remain inflated because ___________.a. intrapleural pressure is exactly equal to atmospheric pressure b. intrapleural
kkurt [141]

Answer:

Option C,  Intrapleural pressure is less than intrapulmonary pressure

Explanation:

During inspiration, the air enters the lungs due to lower pressure in the intrapulmonary or intra-alveolar  than the atmospheric pressure. During quite respiration, the intrapulmonary pressure reduces to a pressure that is 3 mm Hg lower than that of atmospheric pressure. During quiet expiration, the intrapulmonary pressure rises up to a pressure that is 3 mm Hg higher than that of atmospheric pressure. This leads to lack of air in the intrapleural space thereby producing intrapleural pressure which is lesser than that of intrapulmonary pressure.  

This difference in pressure (i.e higher pressure with in the lungs than the atmosphere)  causes lungs to remain attached to the chest wall and hence looks inflated.  

Hence, option C is correct

8 0
3 years ago
What organelle is missing from the red blood cells?
taurus [48]

Answer:

The correct answer is - they lack a nucleus, DNA, and organelles like the endoplasmic reticulum or mitochondria

Explanation:

Red blood cells are considered as the cells, carry oxygen with the help of hemoglobin protein present in it to the various parts of the body from the lungs and carry CO2 back to the lungs.

These cells are different from the normal cell as they do not participate in the protein synthesis due to the fact that they lack various cell organelle and cell components required. Nucleus and DNA are major components or organelle missing from these cells. In addition to these two, endoplasmic reticulum and mitochondria also missing from RBCs.

3 0
3 years ago
Which statements best describe shared characteristics? Check all that apply.
Masteriza [31]

a~ shared characteristics are features or qualities that organisms or species have in common.

c~ shared characteristics can be characteristics that existed in the common ancestor and still exist in modern organisms.

d~ shared characteristics can be new characteristics that have been modified from what was found in the common ancestor.

i hope these are correct, if they aren't, i'm so sorry.

btw, i love your username!!

rose from blackpink? Imaoo :D~

3 0
3 years ago
Read 2 more answers
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