Answer:
These are the isotopes of same element. i.e. hydrogen.
Explanation:
Protium and deutrium are the isotopes of hydrogen.
Isotope:
Atoms of same elements can have different atomic mass but same atomic number . These atom of an elements are called isotopes.
Hydrogen consist of three stable isotopes protium, deutrium and tritium.
These three isotopes are represented as H¹₁ , H²₁ and H³₁ respectively.
Protium consist of one proton and one electron while deutrium consist of one proton , one neutron and one electron. The number of neutron and proton is called mass number while number of electron or proton is called atomic number. The number of proton and electron are always same.That's why protium and deutrium have same atomic number but different atomic mass because there is no neutron present in protium that's why its atomic mass is less than by one from deutrium.
Carbon-Oxygen
We breathe in oxygen, we breathe out carbon dioxide.
To answer your question, the answer is number 1. hope this help
The cell will not store food, water, nutrients, and waste.
Explanation:
In the absence of a vacuole in a cell, the cell will not be able to store food, water, nutrients and its wastes.
The vacuole provides a storage medium for the products in the cell. It is a very important cell structure.
They store food and are both found in both plant and animal cells
*Genetic information are transmitted by the nucleus
* Energy is produced in the mitochondria
* Photosynthesis takes place using the chloroplast
learn more:
Cell brainly.com/question/4493579
#learnwithBrainly
