By process of elimination you can find the right answer. We know for a fact that carbon is found in all living organisms. That is why we talk about carbon based life forms. So the first statement cannot be true. You can figure out how many Valence electrons an element has by looking at the group number. The group number of carbon is 4 so the 2nd statement cannot be true. We know that carbon does bond with other elements because it is not a noble gas and therefore must be able to form compounds.
This means the answer must be they can form up to four covalent bonds
I'm sorry, but I would need to see the options.
TAC-AGA-CTA-ACC-ATG
When transcribing DNA sequence from mRNA A is T, U is A, Cis G and G is C
Answer: Oxygen. Oxygen because both plants and animals need oxygen to breath. When the inhale its carbon dioxide but when they exhale its oxygen.
Explanation: im so sorry if its wrong i did a test on tath like two weeks ago sorry ◑﹏◐
The correct answer is "is a programmed mechanism of cell death".
Apoptosis by definition is programmed cell death. Apoptosis happens when the cell recognize irreversible damage weather in the plasma membrane, cytoplasm, organelles, or in the genetic material inside the cell. This is to prevent proliferation of damaged or mutant cells that can lead to the development of neoplasm.