The color of human skin is _?
A. Polygenic
B. Epistatic
C. Multifactorial
D. Pleiotropic
EVERYDAY SCIENCE
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Mendal investigated _ characteristics of Pisum sativum.
A. Nine
B. Seven
C. Six
D. Eight
Which virus causes AIDS? __?
A. Rabies
B. Pigs
C. HAV
D. HIV
Is the HIV virus a __?
A. DsDNA
B. SsRNA
C. DsRNA
D. SsDNA
PH of recently extracted saliva?
A. 0
B. 5
C. 13
D. 8
Of all photosynthesis on Earth, __ is done by terrestrial plants.
A. 70%
B. 50%
C. 20%
D. 10%
_ causes the stomach to produce more gastric juice:
A. Rennin
B. Gastrin
C. Enterokinase
D. None of them
Three sections make up the small intestine. The initial segment is known as __ ?
A. Oesophagus
B. Larynx
C. Duodenum
D. None of them
Which of the following organelles in cells is devoid of DNA ?
A. Lysosomes
B. Chloroplast
C. Nucleus
D. All of them
Of the following species, which one can be used to biofertilize rice crops ?
A. Mycorrhizal fungi
B. Blue-green algae
C. FrenRhizobium sp.ch
D. None of them