Answer:
b to a
Explanation:
since cells in membranes move from high to low concentration (diffusion). b has more molecules, so it will go into a.
<h2>
Answer</h2>
Three types of covalent bonds, they can form
<h2>
Explanation</h2>
Carbon has four valence electrons in the outer shell but it forms three covalent bonds with another carbon atom. i.e Single bond, double bond and triple bond.
- The single bond is called Alkanes e.g. Methane, Propane etc.
- Double bonds are called alkenes e.g. Ethylene, Propylene etc.
- Triple bonds are called alkynes e.g. Ethyne, Propyne, Butyne etc.
The whale still has traces of a hip and pelvis bones in the back of his body witch scientist think they used to walk on land
Answer:
B
Explanation:
a cell does NOT destroy energy
A digestive system is a part of the body that processes food into energy
