Hope this helps you: Ecology is the study of how organisms interact with their environment<span>, including both abiotic (non-living) and biotic (living) aspects of the </span>environment<span>. It is a very broad definition and the science of ecology tends to overlap other biological sciences.</span>
Answer:
You're answer is B.
Explanation:
Covalent Bonds share a negative and positive ion.
Of these options, I'd say the third choice or "Many species of organisms that lived long ago are now extinct". I hope this helps :)
Answer:
mass and volume are independent. Two objects with the same volume can have different masses hence they can have different densities
Explanation:
The mass of atoms their size and how they are arranged determine the density
The periodic table is organized by the atomic mass of the elements. It means if the element is in Group 2a in the periodic table, it has 2+ ions.