Quarter 1-Science 9-Living Things and Their Environment
Quiz by Merced Ansay
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- Q1
What is the automatic reaction of the body when foreign material accidentally enters the trachea?
cough or choke
fever
sore throat
sneeze
30s - Q2
Which is the correct order of air flow during exhalation?
nasal cavity or nose, bronchi, trachea, pharynx, larynx, alveoli, bronchus
nose or nasal cavity, pharynx, larynx, trachea, bronchi, bronchus, alveoli
pharynx, trachea, bronchus, bronchi, larynx, alveoli, nasal activity or nose
alveoli, bronchus, bronchi, trachea, larynx, pharynx, nasal cavity or nose
30s - Q3
Secondhand smoke emitted by a lit cigarette combined with the smoke exhaled by an active smoker is referred as _______.
active smoke
passive smoke
dirty air
environmental smoke
30s - Q4
Which of the following food intake is caused by primary hypertension or high blood pressure?
high sugar intake
high vegetable intake
high cholesterol intake
high salt intake
30s - Q5
If Roberto’s father has hemophilia and his mother is a carrier, what is the chance that Roberto would inherit the disease?
100%
75%
50 %
25%
30s - Q6
Which of the following determines the sex of an organism?
the female parent
the male parent
none of the choices
both parent
30s - Q7
The DNA has a double – helical structure forming a twisted ladder. The backbone and steps of the ladder is composed of individual nucleotides bonded together. What important biological compounds that make up the backbone of the DNA molecule?
pentose / 5-carbon sugar
phosphate group
nitrogen bases
pentose and phosphate
30s - Q8
Bases in a DNA are complementary. Which is true of its complementary base if there are 35 Thymine in the DNA strand?
only 25 Adenine, since a DNA is helical
there will be 35 Guanine bases
cannot be determined
there will be 35 Adenine bases
30s - Q9
It is a non-Mendelian inheritance wherein traits are expressed independently like the coat color of cats.
sex – linked
multiple alleles
incomplete dominance
co-dominance
30s - Q10
For blood types, if one parent is heterozygous A and the other parent is heterozygous B, what could be the possible blood types of children?
A and O
A, B, and O
A, AB, B, and O
A, AB, and A
30s - Q11
A heterozygous allele shows a phenotype that is intermediate of the two homozygous phenotypes being crossed. Neither allele is dominant over the other. Which Non-Mendelian pattern of inheritance is referred to?
co-dominance
multiple Alleles
incomplete dominance
sex-Linked trait
30s - Q12
Tan colored birds are the result of the cross between a white (W) and a brown(B) colored birds. If the off springs are 50% tan and 50% white, what are the genotypes of their parents?
BW x BW
BW x WW
BB x BB
BB x WW
30s - Q13
Which one will not happen to population size when the environment nears the carrying capacity?
death rate increases
population size decreases
population size remains stable
reproductive rate increases
30s - Q14
Which factors naturally limits the growth of insects in a community?
application of pesticides
over collection
slow rate of reproduction
presence of insect eating animals
30s