| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.04 |
| Score | 0% | 61% |
Reproductive haploids are also known as:
gametes |
|
diploids |
|
sperm |
|
ovum |
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.
Which of these does not contain oxygenated blood?
left ventricle |
|
pulmonary vein |
|
aorta |
|
right atrium |
To provide oxygen to the body, blood flows through the heart in a path formed by the right atrium → right ventricle → lungs → left atrium → left ventricle → body. When blood enters the right side of the heart it is deoxygenated. It enters the left side of the heart oxygenated after traveling to the lungs.
212°F is how many °C?
\(135 {5 \over 9}\) |
|
-100 |
|
100 |
|
0 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (212 - 32)\)
\(C° = {5 \over 9} (180) = {{180 \times 5} \over 9}\)
\(C° = {900 \over 9}\)
\(C° = 100\)
Which of the following is the narrowest classification of life?
genus |
|
family |
|
species |
|
domain |
The narrowest classification of life, species, contains organisms that are so similar that they can only reproduce with others of the same species.
DNA is encoded through a combination of which of the following?
gametes |
|
genes |
|
nucleotides |
|
helix |
Deoxyribonucleic acid (DNA) is the molecule that contains genetic information. DNA is encoded through a combination of nucleotides that bind together in a specific double helix pattern.