| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.60 |
| Score | 0% | 72% |
Molecules and atoms that are outputs from a chemical reaction are known as which of the following?
results |
|
products |
|
side effects |
|
reactants |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
Which of blood component carries oxygen?
platelets |
|
plasma |
|
white blood cells |
|
red blood cells |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.
This skeletal system is common in arthropods like insects, spiders, and crustaceans.
bone |
|
endoskeleton |
|
exoskeleton |
|
vertebrate |
An exoskeleton (external skeleton) is common in arthropods like insects, spiders, and crustaceans.
Which of the following is the smallest component of an element that still retains the properties of the element?
element |
|
molecule |
|
neutron |
|
atom |
An atom is the smallest component of an element that still retains the properties of the element.
In the Periodic Table of the Elements, atomic number is equal to which of the following?
number of protons in the nucleus |
|
number of electrons orbiting the nucleus |
|
number of neutrons in the nucleus |
|
number of protons + neutrons in the nucleus |
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.