Double fertilization is a complex fertilization mechanism of flowering plants. This process involves the joining of a female gametophyte with two male gametes. It begins when a pollen grain adheres to the stigma of the carpel, the female reproductive structure of a flower.
<span>Electrical signals in the body are often based on ions because ions are charged particles</span>
Answer:
Liquids have more kinetic energy than solids
Explanation:
When a substance increases in temp, heat is being added, and its particles are gaining kinetic energy.
1. Treatable by a medical professional
2. Requires a medical diagnosis
<span>3. Lab tests or imaging always required
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Answer:
from 60 to 100 beats per minute