Q: Solar cells convert the energy in sunlight to what type of energy? Choices: - active energy - radical energy - stellar energy - electrical energy A:
electrical energy

Q: What structure of a cell is enclosed by a membrane and contains most of the cell's dna? Choices: - vacuole - ribosome - epidermis - nucleus A:
nucleus

Q: Q: The major entrance and exit for the respiratory system is which facial orifice? Choices: - pore - ear - mouth - nose A:
A: nose

Question: Q: How many pairs of chromosomes are there? Choices: - 17 - 2 - 13 - 23 A:
Answer: 23

*Question*
Q: What are electromagnetic waves created by? Choices: - Static Charges - gravitational charges - particle charges - oscillating charges A:
**Answer**
oscillating charges

(Q).
Q: The smallest part of an element that maintains the identity of that element is called what? Choices: - lattice - nucleus - neutron - atom A:
(A).
atom