Answer:
B) There is an increase in the number of giraffes with long necks in areas of Africa where low-growing trees have died
Explanation:
The directional selection is one of the ways of the natural selection in which the natural selection selects or favours the most extreme trait of the species and the extreme trait show higher fitness than the normal or average trait.
In the given question, the case of Giraffe necks shows directional selection as the normal length of the neck is not favoured by the environment but the extreme trait that is long neck is favoured by the environment and the selection shifted to that level.
Thus, Option-B is the correct answer.
The answer is sedimentary rock.
Answer:
A glucose dose or injection should be given to produce an increase in blood glucose . Give 10-25 g (20-50 ml of D50W — dextrose 50% in water) of glucose intravenously .
Explanation:
Hypoglycemia is a low blood sugar or glucose in the body below normal which is the main source of energy in the body. It is related to diabetes treatment or can be related to other drugs. Hypoglycemia needs immediate treatment when blood sugar levels are low. For some people, a fast blood sugar of 70 milligrams per deciliter (mg/dL), or 3.9 millimoles per liter (mmol/L), or below should serve as an alert for hypoglycemia. The treatment of this getting your blood sugar to normal level by taking high sugar drinks or medications.
The symptoms include, pale skin, hunger, anxiety, fatigue, sweating e.t.c.
I hope this help but the metalloids is gruop five if that what your asking if not i will answer the other question for you
Answer: D I’m pretty sure
Explanation:
