WorksheetsSection 3 and 4 Questions
Total questions: 40
Worksheet time: 27mins
Which is in order from largest to smallest structure?
chromosome, DNA strand, gene, nucleotide
chromosome, gene, DNA strand, nucleotide
gene, DNA strand, chromosome, nucleotide
DNA strand, chromosome, gene, nucleotide
What are the parts of a nucleotide?
phosphate, sugar, base
A, T, G, C
Nucleic Acids
two base pairs connected
Which of the following is correctly matches: ATT GTA CGA
TAA CAT GCT
ATT GTA CGA
TAA GTA TCG
GCC ACG TAC
The 'backbone' or 'ribbon' of the DNA strand is made of:
phosphate and sugar
phosphate only
phosphate and base
sugar and base
What is this a picture of?
nucleotide
DNA strand
chromosome
gene
Which of the following correctly matches: GCT AGA TCG
CGA TCT AGC
TAG CTC GAT
ATC GAG CTA
ATG CTC CGT
DNA is shaped in a:
double helix
tightly packed swirl
twisted ladder
nucleotide
antiparallel stands of nucleotides run in:
opposite directions
the same direction
base pairs
chromosomes
In which phase does the DNA copy itself?
interphase
metaphase
anaphase
telophase
In which phase do the chromosomes line up?
prophase
metaphase
anaphase
telophase
In which phase do the chromosomes form?
prophase
metaphase
anaphase
telophase
In which phase do the chromatids split apart?
prophase
metaphase
anaphase
telophase
In which phase do new nuclear membranes form?
prophase
metaphase
anaphase
telophase
The trait that will always be expressed if one copy of an allele is present.
recessive
dominant
co-dominant
A dog's soft fur an example of a....
Genotype
Phenotype
A flower's red color an example of a....
Genotype
Phenotype
tt an example of a....
Genotype
Phenotype
This dying out or extermination of a species.
Endangerment
Extinction
Ecologically Extinct
Extinct Species
What do you call the plants or animals that are in danger of becoming extinct?
Endangered Species
Extinction
Extinct Species
Ecologically Extinct
Which of the four categories of species extinction is when individual species remain alive only in captivity or in other human-controlled situations?
Ecologically Extinct
Extinct in the Wild
Locally Extinct
Globally Extinct
Which is NOT a way to prevent or conserve biodiversity?
Using animal-tested products.
Growing native plants.
Reducing Carbon footprint.
Educate and Spread Awareness
What are the common causes of Species Extinction?
(Check all the possible answers)
Hunting
Reforestation
Deforestation
Over Exploitation
Pollution
It refers to change in weather patterns that lasts over a long period of time.
Climate
Weather
Climate Change
Global Warming
Which of the following is TRUE about the dynamic changing of the environment?
Extinction rate decreases as a dynamic change in the environment increases.
All organisms can easily adapt to the changing environment
Creative innovations will be the main driver to solve abrupt changes in the environment
The extinction rate of species increases as they were unable to adapt to the abrupt changes in the environment.
What is the main cause of coral bleaching as explained in the text?
Rising ocean temperatures
Overfishing
Underwater volcanic eruptions
Pollution from plastic waste
What is the unique feature of corals that makes them different from other life forms?
Ability to build their own environments
Ability to change colors instantly
Ability to fly
Ability to survive without sunlight
What is the main cause of coral bleaching according to the text?
Overfishing
Natural disasters
Pollution
Global climate change
What did the corals in New Caledonia do that was different during the bleaching event?
They turned black
They grew larger
They started glowing
They disappeared
Coral bleaching events occur because coral
do not have enough calcium carbonate to build their skeletons.
reflect light back into space, enhancing the greenhouse effect.
undergo extreme heat stress and eject their symbiont.
consume the poisonous zooxanthellae algae and subsequently die.
what do our oceans control
weather
climate
oxygen we breathe
car traffic
