If a baby is a female, her mother's ovum must have been fertilized by a sperm carry the chromosome
X
XY
XX
YY
Y
Correct answer is A
No explanation has been provided for this answer.
lowest in the tube with clay
the same in all tubes
lowest in the tube with loamy soil
highest in the tube with sandy soil
lowest in the tube with sandy soil
Correct answer is E
No explanation has been provided for this answer.
Ecosystem
Food chain
Food web
Succession
Community
Correct answer is D
No explanation has been provided for this answer.
The center which controls respiratory activities the mammalian brain is the
cerebrum
olfactory lobe
pituitary organ
cerebellum
medulla
Correct answer is E
No explanation has been provided for this answer.
Biconcave lenses are used in the correction of an eye defect called?
myopia
colour blindnes
old age
hypermetropia
weakening of ciliary muscles
Correct answer is A
Concave Lenses Are for the Nearsighted, Convex for the Farsighted.
Concave lenses are used in eyeglasses that correct nearsightedness.