Plants use Photosynthesis for food and nutrients and produce oxygen in the progress
Answer:
2. have no negative particle
Explanation:
Helium atoms contains 2 neutrons and 2 protons (or 2 electrons). Thus, it has a mass number of 4 and atomic number of 2.
Alpha particles are heavy and positively charged, which make them to be deflected in a magnetic or electric charge. So, the helium atoms used as alpha particles for the gold foil experiment must have no negative particle.
Answer: B
Explanation: During cell division, chromatin condenses to form chromosomes.
Answer:
C. Nucleus
Explanation:
In both animal and plant cells the nucleus controls all activities in the cell.
