B. homozygous for the recessive allele.
The only way you have a disease caused by a recessive allele is that both of your copies are recessive.
Answer:
The population of the white mice would significantly decrease, and most of the mouse population would be with brown fur.
Explanation:
As stated in the question, the brown mice survive better in warmer times. This is due to the fact that with winter and snowy times it makes it harder for prey to spot the WHITE mice v.s. the BROWN mice who would very easily be spotted by the prey in snowy regions.
Answer:
The drinking water in a location in Florida had a fall order and test and this happened due to the storm water runoff that had carried huge amounts of soil and minerals into it.
The solution for this problem is that the people of that local area should practice afforestation.
Explanation:
Afforestation is defined as a process of planting more and more trees in an area. The plants are helpful for the people and environment in many ways. The most important thing is that the plant reduces the soil erosion in an area.
The root of the plant and small hub tends to hold up the soil and prevent them to flow away from the high speed runoff water into the water body.
Also it provides the favorable conditions for more animals and birds. It also provide fresh air to the local people to inhale and utilizes all the carbon dioxide.
Answer:
C. K+ ions flow out the the guard cells and water flows out the cells.
Explanation:
The turgidity of the guard cells allows the opening and closing of the stomata. This is especially necessary when it comes to water conservation in plants. In order for the cells to become turgid or flaccid, there must be the influx and out ward movement of water via osmosis.
In order for this the occur the osmotic pressure of the cellular environment must change and this is done by changing the solute concentration.
The pumping in of K+ ions out the cell allows the solute concentration to decrease and this in turn encourages the movement of water across a concentration gradient through a semi-permiable membrane.
The water leaves the guard cells and they become flaccid. This causes the stomata to be covered.
