The answer is Bantu.
They had already developed immunity to malaria due to exposure in their native environment.
As they migrated southwards to conquer more land, they met the pygmies and the Khoisan. The Bantus had carried with them the malaria vectors.
When the mosquitos infected the pygmies
and the Khoisan populations, who had no
immunity against malaria, the disease reduced their populations drastically hence
enabling the Bantus to conquer their
land.
The correct answer for this question would be the WHITE RHINOCEROS. The white rhinoceros weighs 5, 100 pounds or 2, 300 kilograms. In the list, the first mammal that is considered as the heaviest is the African elephant which weighs 24, 000 pounds or 11, 000 kilograms and followed by Asian elephant weighing 12, 100 pounds or 5, 500 kilograms. Hope this answer helps.
No
All people with autism do not exhibit the same symptoms.
Autism is a complex developmental condition that manifests during the first three years of an individual's life. Autism occurs due to the effect of a neurological disorder on normal brain function, which then influences an individual’s social interaction skills, communication and developmental language. Autism has a range of symptoms which may be mild for some and more severe for others. Symptoms of autism disorder include repetitive behaviors, seizures, lack of spoken language etc.
Answer:
B. equilibrium
Explanation:
Equilibrium is a term that refers to the condition that exists when no change in concentration results from diffusion.
At equilibrium state, the system is at rest or in motion.
- The rate of forward processes is equal to the rate of the backward process.
Concentration is the amount of solute found in a solution.
Osmosis is the movement of solvent through a semi-permeable membrane.
Randomness is the degree of disorderliness of a system.
<span>This statement would most likely come from a comparative behaviorist. Behaviorists study the behavior of both humans and animals. If somebody said this statement, it would mean that they observed this animal's behavior over a long period of time to determine that it learned how to do something, and that it's not just a result of instinct. If it were instinct, an ethologist would study that. </span>
