| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.14 |
| Score | 0% | 63% |
Water coming to a boil on a stove, ice melting, and steam from a cup of coffee are all examples of which of the following?
conduction |
|
convection |
|
reflection |
|
radiation |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
Which of the following describes how a person's genes express themselves in physical characteristics?
chromotype |
|
DNA |
|
genotype |
|
phenotype |
A person's genotype is their genetic makeup and includes both dominant and recessive alleles. Phenotype is how the genes express themselves in physical characteristics.
Cirrus clouds generally occur in what kind of weather?
fair |
|
freezing |
|
hot |
|
stormy |
Cirrus clouds are thin, wispy high-altitude clouds composed of ice crystals that originate from the freezing of supercooled water droplets. Cirrus clouds generally occur in fair weather and point in the direction of air movement at their elevation.
The connective tissue that connects bones to other bones at joints is called:
knuckles |
|
ligaments |
|
cartilage |
|
tendons |
Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).
In fermentation, what replaces oxygen in anaerobic respiration?
starches |
|
ascorbic acid or peptides |
|
water |
|
lactic acid or alcohol |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.