4th Quarter Pretest in Science 8
Quiz by Rhodalia Salamat
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Measures 8 skills fromGrade 8SciencePhilippines Curriculum: Grades K-10 (MELC)
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- Q1
What role does saliva play in digestion?
Saliva does not help with digestion.
It moves food through intestine.
It helps break down food.
It coats your stomach with protective lining.
30sS8LT-IVa-13 - Q2
What is the correct sequence of the steps involved in the process of the Human Digestive system?
excretion, absorption, digestion, assimilation, ingestion
assimilation, absorption, ingestion, digestion, excretion
ingestion, digestion, absorption, assimilation, excretion
digestion, ingestion, assimilation, excretion, absorption
30sS8LT-IVa-13 - Q3
Which of the following is the function of a liver?
help the stomach.
remove the harmful substances from the blood
turn water into food.
mush up food.
30sS8LT-IVa-13 - Q4
Which organs help with the absorption of nutrients?
pancreas, liver, and gall bladder
kidneys, liver, and gall bladder
liver, heart, and spleen
gall bladder, kidneys, and appendix
30sS8LT-IVa-13 - Q5
What organs produce enzymes that help in digestion?
heart and kidneys
eyes and ears
pancreas and liver
nose and ears
30sS8LT-IVa-13 - Q6
What is the correct order of mitosis?
metaphase, anaphase, telophase, prophase
prophase, metaphase, telophase, anaphase
anaphase, metaphase, telophase, prophase
prophase, metaphase, anaphase, telophase
30sS8LT-IVd-16 - Q7
During mitosis, the doubling of chromosomes ensures that both new cells.
have an identical genetic makeup
serve different functions
are twice the size of the parent cell
remain attached to each other
30sS8LT-IVd-16 - Q8
During interphase, what does the “S phase” stands for?
Standard phase
Slow phase
Synchronize phase
Synthesis phase
30sS8LT-IVd-16 - Q9
If an organism has a diploid number of 40 chromosomes, like in the case of a
mango plant, what is its haploid number?
40
10
4
20
30sS8LT-IVd-16 - Q10
ALL of the following descriptions are TRUE about SPERMATOGENESIS except.
The process starts w/ the mitotic division of the stem cells at the base membrane of the tubules.
It is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis.
Mature spermatozoa are produced and developed in this process.
The process starts at the Mitotic division and the maturation of the spermatozoa in the Meiotic stages.
30sS8LT-IVd-16 - Q11
______ refers to the physical or observable traits of an organism while _____is the
genetic composition of an organism.
genotype, phenotype
heterozygous, homozygous
dihybrid, monohybrid
phenotype, genotype
30sS8LT-IVf-18 - Q12
If green pea with homozygous round seeds (RR) is crossed with homozygous
wrinkled seeds (rr), what is the probability that an offspring will have round
seeds?
50 %
75 %
25 %
100 %
30sS8LT-IVf-18 - Q13
An organism with two copies of the same allele is said to be
homozygous
heterozygous
phenotypic
genotypic
30sS8LT-IVf-18 - Q14
Suppose you have two lines of Gumamela flowers, which are homozygous for
two different traits. However, you don’t know the mode of inheritance for the
genes you are testing. What will be your first clue?
The phenotypes of the parents
The genotypes of the parents.
The phenotypes of the dihybrids.
The genotypes of the dihybrids.
30sS8LT-IVf-18 - Q15
If green pea with heterozygous axial flower (Aa) is crossed with a terminal flower
(aa), what is the probability that an offspring will have an axial flower?
25 %
75 %
50 %
100 %
30sS8LT-IVf-18 - Q16
Which levels of the hierarchical taxonomic system consist of the scientific name
of any organisms?
genus and species
species and class
family and order
phylum and class
30sS8LT-IVg-19 - Q17
Which of the following is the correct sequence from the most to the least comprehensive of the taxonomic levels?
Kingdom, Phylum, Order, Class, Family, Genus, and Species
Kingdom, Phylum, Class, Order, Family, Genus, and Species
Phylum, Kingdom, Order, Class, Species, Family, and Genus
Family, Phylum, Class, Kingdom, Order, Species, and Genus
30sS8LT-IVg-19 - Q18
Which members belong to Kingdom Monera?
fungi
bacteria
plants
protists
30sS8LT-IVg-19 - Q19
How do biodiversity and stability work together?
Biodiversity has nothing to do with ecosystem stability.
The lower the biodiversity, the greater the stability of an ecosystem.
The higher the biodiversity, the greater the stability of the ecosystem.
The higher the biodiversity, the less stable the ecosystem.
30sS8LT-IVh-21 - Q20
Which of the following describes LOW biodiversity?
where the existence of biodiversity is stable
contains few organisms
where there is the sustainability of organisms
with a variety of organism interacting with each other
30sS8LT-IVh-21