| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.71 |
| Score | 0% | 74% |
Elements in the Periodic Table of the Elements are ordered by which of the following?
atomic weight |
|
atomic mass |
|
number of electron shells |
|
atomic number |
The Periodic Table of the Elements categorizes elements primarily by the number of protons in their nucleus (atomic number) and secondarily by the characteristics they exhibit.
Gametes have how many pairs of chromosomes?
4 |
|
2 |
|
23 |
|
46 |
Reproductive (haploid) cells known as gametes have half as many (23) pairs of chromosomes as normal (diploid) cells. When the male gamete (sperm) combines with the female gamete (ovum) through meiosis to form a zygote, each gamete supplies half the chromosomes needed to form the normal diploid cells.
The energy posessed by a thrown baseball is an example of what kind of energy?
kinetic |
|
potential |
|
gravitational |
|
transitional |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
mouth |
|
small intestine |
|
large intestine |
|
stomach |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.
What part of the brain is responsible for the major senses (thinking, hearing, seeing)?
cerebellum |
|
cerebrum |
|
brainstem |
|
medulla |
The cerebrum is the major part of the brain and is responsible for the main senses (thinking, hearing, seeing).