C gravity and muscle contractions move food down the esophagus. These muscle contractions are called peristalsis
Answer:
Algae is a non flowering plant and found in very most and wet areas.
The Importance of algae include mopping up of the Carbon dioxide present in waterbodies and producing some amount of oxygen to the water through photosynthesis and this helps in the survival of sea animals.
It also helps in pollution control and degradation of hard toxic substances.
They also serve as source of food of sea animals.
Active transport is the process by which dissolved molecules move across a cell membrane from a lower to a higher concentration. In active transport, particles move against the concentration gradient - and therefore require an input of energy from the cell.
Answer:
meisios is the correct answer
A. Earth is a terrestrial planet whose orbit is found beyond the asteroid belt.
In reality, Earth's orbit is within the asteroid belt.
