1. Which factors have contributed most to water shortages in cities such as Cape Town? Select the two correct answers.
A. lack of wastewater treatment
B. drought conditions
C. use of recycled water
D. rapid population growth
E. increase in water pollution
2. Which strategy will most decrease the number of people sickened by water-borne diseases?
A. increased use of solar power
B. improved agriculture
C. increased use of fungicides
D. better sanitation systems
3. Which statement describes a struggle over water rights between Egypt and Ethiopia over the Nile River?
A. Each country wants the other country to sign the Nile Waters Agreements.
B. Both countries want to ensure that the flow of the Nile is steady in all of the countries it passes through.
C. Both countries want more control over the flow of the river for irrigation and electricity production.
D. Each country wants the other country to be responsible for wastewater treatment along the river.
1. B. drought conditions and D. rapid population growth
2. D. better sanitation systems
3. C. Both countries want more control over the flow of the river for irrigation and electricity production.
Why don't animal cells need a central vacuole like plant cells?
in 1 sentecnce
Animal cells do not need a central vacuole like plant cells because they have smaller and more scattered vacuoles.
What are the 2 organelles that plant cells have that animal cells do not? Hint: They start with the letter C
In one sentence
The two organelles that plant cells have that animal cells do not are chloroplasts and a cell wall.
Which organelle allows plants to take in sunlight to make food?
*
1 point
chloroplast
cell wall
vacuole
mitochondria
chloroplast
What is the difference between prokaryote and eukaryote cells? Hint: Remember Pro is ___ nucleus.
*
1 point
prokaryote cells are multicellular
eukaryote cells do not have a nucleus
They both have a nucleus
prokaryote cells do not have a nucleus and eukaryote cells do have a nucleus
prokaryote cells do not have a nucleus and eukaryote cells do have a nucleus.
Which organelle allows plants to take in sunlight to make food?
*
1 point
chloroplast
cell wall
vacuole
mitochondria