Explanation:
The food we eat contains energy. This energy is taken by us through eating food. It is a natural process that all living things eat food to get energy for their living. The energy in the food is transferred to the bodies of the living things which in turns provide them energy.
When humans eat the food, the food is broken down in the human body through a process of digestion. This process breaks down food into small particles, releasing energy from them and providing it to the body, The food molecules release energy and the process of digestion takes these molecules , breaks them down, extract the energy and give it to human body. So this is how a human body gets energy from eating food.
Left auricle and left ventricle
Answer: choice A
Explanation:
The main difference between pterophytes and lycophytes is the presence of true leaves(pteropytes) and lychophylls(lychophytes). Having lycophylls is a synapomorphy for the lychophytes.
Neither of these clades have seeds.