Answer:
4 bonds
Explanation:
Carbon is a unique element that completes its octet by forming four hydrogen bonds.
- All four hydrogen bonds= Methane
- 2 covalent, hydrogen bonds= Ethene
- 3 covalent, 1 hydrogen= Ethyne
Answer:
what is meant by I can't understand this
Answer:
Unlike animal cells, bacteria have a porous cell wall surrounding their plasma membrane. The cell wall may help bacteria survive in <u>hostile</u> environment.
Explanation:
Diferent from cells of higher organisms, the bacterium is faced with an unpredictable and often hostile environment.
Bacteria have evolved in order to survive, a sophisticated and complex cell envelope that protects them, but at the same time allows selective passage of nutrients from the outside and waste products from the inside.
Answer:
A. their nephron loop is closely wrapped with vasa recta
Explanation:
Answer:
When somewhere covered in mold you may not even see it, but a good way to know its there is the smell, or the quality of the air. If the air feels musky and gross there could be some mold somewhere.