Answer:
The correct answer is - 2. Helium.
Explanation:
Nuclear fusion is a reaction that involves the fusion of two or more atomic nuclei to make different atomic nuclei with subatomic particles and releases a huge amount of energy.
Two hydrogen molecules with one proton and one neutron fused together to make a larger helium molecule with two protons and two neutrons and release a huge amount of energy.
1H^2+1H^2 ====> 2He^4 + energy
Answer:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.
Explanation:
Answer:
heart, nerves, and blood vessels. I know you go to logos
Your heart pumps blood so it can circulate to your tissues as well as get oxygen from your lungs, if your heart can’t pump blood well i.e. heart attack you can feel short of breath
Answer:
They have some prokaryotic cells though they are being regarded as eukaryotes.
Explanation:
Cells are the basic functional unit of life
Eukaryotic cells have membrane bound nucleus while prokaryotic cells don’t have this.
The body of the tiger consists of different types of cells such as nerve cells, muscle cells, olfactory cells, digestive cells etc. An aggregation of these cells is what makes up the different types of systems ( digestive system, nervous system).
Though animals and human beings are widely regarded as eukaryotic they still possess some cells in the body which are prokaryotic. These prokaryotic cell include cilia which line the respiratory system.
