The important role of the atmosphere is to supply oxygen, water, carbon dioxide and nutrients. It also protects all living things from extreme temperatures and radiation (protects us from harmful solar rays).
Answer:
here.
Explanation:
Due to the prevalence of malaria in Africa, the allele for sickle cell anemia (HbS) provides a selective advantage. That's why it remains in the population.
A normal African person (HbAHbA), with normal haemoglobin, will not die of anemia, but will die of malaria.
An African person with sickle cell anemia (HbSHbS), with abnormal haemoglobin, will die of anemia.
A heterozygous African person (HbAHbS), with half of his red blood cells (RBCs) being normal and the other half being sickle-shaped, will neither die from anemia, nor malaria since the plasmodium will be incapable of completing its life cycle in the abnormal RBCs.
Thus heterozygous African people will grow, reproduce and pass on the HbS allele to the next generations.
Given that the two trucks have the same mass but different velocities, that is truck A is traveling 15 km/h and truck B is traveling 30 km/h, hence Truck B will have a greater stopping distance.
The reason why Truck B will have a greater stopping distance is because it speed is greater hence more distance to cover.
From the following expression
Speed = Distance/Time
Distance = Speed*Time
More on the kinetic Energy
Following from the given problem truck B will also have more kinetic energy because it velocity is more
Formula
KE= 1/2mv^2
Hence the more the velocity for a constant mass the greater the Kinetic energy
Learn more:
brainly.com/question/20658056
D. Fungi
The kingdom Fungi includes a vast variety of organisms such as mushrooms, yeast, and mold.
Answer: Option C."hypernatremia"
Explanation:
Hypernatremia is defined as the a electrolyte problem in which sodium concentration rises to a value more than 145 mmol/L in serum.
The major symptoms of hypernatremia involves thirst, muscle twitching or spasms, and confusion.
Hypernatremia is a hyperosmolar condition caused by a decrease in total body water (TBW) against electrolyte content and several causes of hypernatremia includes intake of hypertonic fluid, salt poisoning in children, and inadequate intake of free water associated with total body sodium depletion et cetera.
Hence, the correct option is C.
