Answer:
Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism (skototropism).
Explanation:
A) They all have similar chemical properties.
Answer:
A single phosphate
Explanation:
A phospholipid is a fatty acid compound which is hydrophobic in nature due to which it forms the cell membrane of a cell.
The phospholipid is composed of a phosphate group, fatty acid chains, and glycerol molecules.
The glycerol molecule attached to a phosphate group forms the head of the phospholipid and the fatty acid forms the tail of the phospholipid. The head is the hydrophilic portion of the lipid while the tail is the hydrophobic portion of the phospholipid.
Thus, a single phosphate is correct
Mouth, esophagus, stomach, small intestine, large intestine.
