Answer:
a bicyclist travels 60.0 kilometers in 3.5 hours what is the bicyclist average speed?
Average speed= 4.76m/s
Explanation:
Speed= distance/time
distance= 60km= 60 X 1000= 60,000m
time= 3.5 hours= 60 X 3.5= 210 minutes= 210 X 60= 12600 seconds
Therefore speed= 60000m/12600s
Speed= 4.76m/s
Answer: Sickle cell anemia is a molecular and genetic disease.
Sickle cell anemia is not infectious
Diseases caused by microorganisms are infectious.
Explanation: Sickle cell disease is a molecular disease,it involves molecular change in the structure of the molecular base present in the molecule DNA which caused the amino acids and the beta side of the hemoglobin to change accordingly.
It is genetic as it can be transferred from one generation to the next, children can inherit it from their parents.
A person can not be infected with Sickle cell anemia,it is not infectious unlike diseases caused by microorganisms that can infect others who come in contact with the disease either through blood or other routes.
Answer: the actual size of the population is relatively small.
Explanation:
In relatively small populations, the phenomenon of genetic drift significantly may change the frequencies of the alleles in that population. This consequently affect the genetic structure of the population in context.
Whereas big populations doesn't significantly feel the shakings of this phenomenon because her effects are small and insignificant.
Answer:
The answer easier
Explanation:
It's the most commonly used form of classification or type of identification key used in biology as it simplifies identifying unknown organisms. Typically, a dichotomous key for identifying a particular type of object consists of a specific series of questions. When one question is answered, the key directs the user as to what question to ask next. Dichotomous keys typically stress identifying species by their scientific name, as each individual species has a unique scientific name.
