Answer: B) Population size is the total number of organisms, while population density is the total number of organisms within a given area.
Population size refers to the total number of organisms present in a population. On the other hand, population density reflects population size per unit area.
For example- In a population, if 200 individuals are living in 100 square meter of area.
Population size = 200
Population density = 200/ 100 = 2 individuals per square meter.
Answer:
dense irregular is the correct answer.
Explanation:
The symptom and sign which indicate placenta previa here is Pinless vaginal bleeding.
Placenta previa is a condition where the placenta is covering the cervix or it is attached close to the cervix.
In various times of pregnancy, bleeding may occur. It can not be a serious complication. The cause of the bleeding may depend on the amount of pain or the time of bleeding in pregnancy.
In the first trimester, bleeding may occur and may be due to ectopic pregnancy, miscarriage, implantation of the placenta in the uterus or infection.
Bleeding in late pregnancy lets say twenty weeks can be due to placenta previa or placental abruption.
Answer:
D. It has a strong influence on the ecosystem.A keystone species is a non-abundant species in an ecosystem. This species is important for the survival of the ...
Explanation:
