WorksheetsQX1 Grade 9 Reviewer
Total questions: 48
Worksheet time: 35mins
When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....
Incomplete Dominance
Codominance
Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).
Cross a red flower with a speckled flower. What is the phenotypic ratio?
2 red, 2 speckled
2 red, 2 blue
2 blue, 2 speckled
In mice coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous.
What is the genotype for a brown mouse?
BB
Bb
bb
In cattle red coats are represented as RR, and white coats are represented as WW.
What is the genotype for Roan color?
RR
RW
WW
A woman with curly hair and a man with straight hair produced a child with wavy hair:
Incomplete dominance
Codominance
Complete dominance
This dying out or extermination of a species.
Endangerment
Extinction
Ecologically Extinct
Extinct Species
What do you call the plants or animals that once lived on Earth that have completely disappeared?
Endangered Species
Extinction
Extinct Species
Ecologically Extinct
What do you call the plants or animals that are in danger of becoming extinct?
Endangered Species
Extinction
Extinct Species
Ecologically Extinct
It refers to the variety of all species, living things, and ecosystems on Earth
Community
Species Population
Biological Diversity
Organisms
Which of the four categories of species extinction is when members of a species can no longer be found on Earth?
e.g. Woolly Mammoth
Ecologically Extinct
Extinct in the Wild
Locally Extinct
Globally 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
What are the two types of causes of extinction?
Natural Causes of Extinction
Standard Causes of Extinction
Anthropogenic Causes of Extinction
Civil Causes of Extinction
What does "Anthropogenic" mean?
Caused by animals or plants.
Caused or resulting from the influence of human beings on nature.
Relating to or characteristic of people or human beings.
Which is NOT a way to prevent or conserve biodiversity?
Using animal-tested products.
Growing native plants.
Reducing Carbon footprint.
Educate and Spread Awareness
The National Bird of the Philippines, the Philippine Eagle is currently critically endangered.
True.
False.
What is the H in HIPPCo stand for?
habitat loss
habitat restoration
habitat decline
harvesting
The I in HIPPCO stands for
Infrastructure
Invasive Species
innovation
Information Technology
An increase in which part of HIPPCO results in an increase in the rest?
pollution
climate change
human population growth
invasive species
Deforestation is an example of
the H
the P
the C
the O
What do you think happens to the number of species in an area when the habitat size declines?
increases
decreases
remains the same
Untreated sewage entering the ocean is an example of which part of HIPPCO
the H
the I
the P
the O
Burning fossil fuels and trapping more greenhouse gases in the atmosphere cause which part of HIPPCO
the P
the C
the O
the I
Fishing tuna at a rate of more than they can replace themselves is known as?
Habitat destruction
unsustainable
trophic cascade
overharvesting
The greater a habitat's biodiversity, the greater will be that habitat's
resilience over varying conditions
sources of energy
rate of endangered species
lack of different types of organisms
Biodiversity contributes to habitat sustainability because
Changing conditions that harm one species leave other species to survive and perhaps even thrive.
The greater the number of species, the more competition there is for food between predators, which sustains their populations
The more plants and animals in a habitat, the greater the links in food webs allowing for more stable system
It will be more prone to disturbances
Which of the following is NOT a way in which humans are destroying habitats?
Clearing out prairies to grow a single crop
Gathering rain water to use to water crops
Building a shopping mall with a large parking lo
Cutting trees for toilet paper
Which of the following is NOT a cause for the current decline in the biodiversity of our ecosystem?
overexploitation of resources
increasing human populations
pollution of water sources
regenerating forests
A possible way to prevent species from becoming endangered is?
increased use of fossil fuels
more habitat converted to farms
designating more areas as wildlife preserves
increased urban expansion
In the forest spotted owl make their home in the cavities of dead trees. The same habitat is home to rodents that owls feed on. Logging by humans have caused the population of owls to decline. What statement BEST explains the relationship between humans and the spotted owl.
Humans have taken away resources needed by owls, so there are fewer owls
humans have taken away resources needed by owls, so there are fewer owls
Humans moved the owls to the zoo, so there are less owls in the woods.
Humans eliminated predators of the owls, so the owls increased.
It is estimated that half of the 10 million species of organisms on the planet live in the tropical rain forests. Deforestation of the rainforest causes the extinction of as many as 50,000 species per year. Clearing tropical rain forests causes the extinction of many species because
plants and animals are exposed to high levels of carbon dioxide.
many unique habitats and ecosystems are being completely destroyed.
destruction of the rainforest contributes to the depletion of the ozone.
pollution caused by humans increases the greenhouse effect.
What was the name of the mass extinction in which dinosaurs became extinct?
Devonian
Triassic-Jurassic
Ordovician
Cretaceous-Tertiary
