| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
In cell biology, what part of the cell contains organelles?
cell wall |
|
nucleus |
|
cell membrane |
|
cytoplasm |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles.
Menstruation occurs when:
the fetus is formed |
|
the ovum fails to become fertilized |
|
the ovum becomes fertilized |
|
the zygote is formed |
If the ovum fails to become fertilized, the lining of the uterus sloughs off during menstruation. From puberty to menopause, this cycle of menstruation repeats monthly (except during pregnancy).
Which of the following is not part of the carbon cycle?
decomposition |
|
precipitation |
|
respiration |
|
photosynthesis |
The carbon cycle represents the ciruit of carbon through Earth's ecosystem. Carbon dioxide (CO2) in the atmosphere is absorbed by plants through photosynthesis. Plants then die and release carbon back into the atmosphere during decomposition or are eaten by animals who breathe (respiration) the carbon into the atmosphere they exhale and produce waste which also releases carbon as it decays.
Which of the following is true about species groups?
a community is made up of a group of populations |
|
an ecosystem is a biological population |
|
a biome is a made up of a group of biospheres |
|
a population is made up of a group of communities |
A population is a group of organisms of the same species who live in the same area at the same time. A community is a group of populations living and interacting with each other in an area.
Food is mixed with gastric acid and pepsin in the __________ to help break down protein.
small intestine |
|
mouth |
|
large intestine |
|
stomach |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.