WorksheetsScience competition- grade 6 Round 2
Total questions: 15
Worksheet time: 10mins
Place the following events in sequence: A) Pollen is deposited on a pistil; B) Pollen fertilizes an ovule; C) A honeybee collects pollen
B, C, A
A, C, B
C, A, B
B, A, C
How is the greenhouse effect produced?
When solar energy trespasses the atmosphere.
When some energy is reflected back to earth.
When the green house is burned.
When the sun doesn't emit radiation.
The purpose of seed dispersal is for the seeds to __________.
germinate at the same time
move to the same place and grow
move further away from the parent plant
compete with one another for minerals in the soil
Which answer includes the dominant homozygous genotype?
AA
Aa
aa
What is the definition of a genotype?
The genetic makeup of an organism
The physical traits of an organism.
When one allele is dominant and one allele is recessive.
When both alleles are dominant.
The roots have negative
phtotropism
Thigmotropism
Gravitropism
Hormones
Which of the following is not a cause of acid rain?
Volcanic Eruptions
Burning of fossil fuels
electric cars
combustion engins
What type of asexual reproduction is it?
budding
regeneration
sporulation
binary fission
environmental influences
learned behavior
recessive traits
Courtship behaviour
