WorksheetsBio 10 - Let's Begin Semester 2
Total questions: 15
Worksheet time: 8mins
Where does fertilisation happen?
Uterus
Ovary
Oviduct/Fallopian Tube
Urethra
Where is the male gamete produced in plants?
Ovule
Stem
Anther
What word is used to describe a type of cell that contains one set of chromosomes?
Diploid
Single
Haploid
Double
Human blood type is determined by multiple alleles (A, B, and O). Which ratio would result from a cross between a man with Type AB blood and a woman with Type O blood?
A. 50% Type A, 50% Type O
B. 75% Type A, 25% Type B
C. 50% Type A, 50% Type B
D. 100% Type O
A woman develops skin cancer after prolonged exposure to ultraviolet radiation from sun tanning. Would her future children be at risk of inheriting this skin cancer?
A. Yes, if she had a baby after developing skin cancer.
B. Yes, this is a mutation in the DNA of her somatic cells.
C. No, this condition does not affect the woman's egg cells.
D. No, babies cannot get skin cancer because they are immune.
An adaptive feature of an organism is...
any feature that is changed by the environment
any feature that shows continuous variation
any feature that helps the organism to survive and reproduce
any feature that is inherited from the parent(s)
Phenotypic variation is caused by
Alleles only
The environment only
Interaction between the alleles and the environment
Natural selection
None of the above
Which of the following refers to the studying of how living organisms interact with their environments?
Symbiosis
Community
Niche
Ecology
At which trophic level is the MOST amount of energy available?
Tertiary consumers
Secondary consumers
Primary consumers
Primary producers
A large amount of herbicide is applied to a field. Heavy rainfall carries much of it into a nearby lake.
What will be the effect of this on the lake?
A Herbicide decreases the growth of water plants.
B Herbicide decreases the number of bacteria.
C Herbicide increases the rate of evaporation from the lake.
D Herbicide kills the fish.
The diagram shows four positions on a river where water samples were taken.
Which graph shows oxygen concentrations in the river?
Over-use of fertilisers on farmland causes the chemicals in the fertilisers to be washed into ponds and lakes.
This causes eutrophication resulting in the following events.
1 algae grow
2 fish die
3 bacteria grow
4 oxygen decreases
What is the correct sequence of these events?
A 1 → 3 → 4 → 2
B 1 → 4 → 3 → 2
C 3 → 4 → 2 → 1
D 4 → 1 → 2 → 3
