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WorksheetsEXAM 4.3 4th Six Weeks Review -- 7th Grade
Total questions: 54
Worksheet time: 32mins
arachnids and insects?
Process of fertilizing flowers by transferring pollen from male to female parts
pollination
seed dispersal
herding
vegetative propagation
Process used to make more of its own kind, but with only one parent
sexual reproduction
asexual reproduction
development
growth
Joining of an egg cell and sperm cell from two different organisms
sexual reproduction
asexual reproduction
growth
development
Type of asexual reproduction that produces two identical cells
vegetative propagation
binary fission
budding
regeneration
Type of asexual reproduction where the offspring grows out of the parent organism
vegetative propagation
binary fission
budding
regeneration
Type of asexual reproduction that helps an organism regrow a damaged body part
binary fission
vegetative propagation
budding
regeneration
Type of asexual reproduction when one plant grows new plants
vegetative propagation
budding
regeneration
binary fission
Pair of genes where one is dominant and he other is recessive
heterogeneous
homogeneous
genotype
phenotype
Both genes are the same
heterogeneous
homogeneous
genotype
phenotype
Actual gene make-up (bb,Bb)
heterogeneous
homogeneous
genotype
phenotype
Physical appearance (brown hair, blue eyes)
heterogeneous
homogeneous
genotype
phenotype
Male widow birds (Euplectus progne) have very long tail feathers. What evidence would support the claim that these tails are used by the birds to attract mates and lead to reproductive success?
In every generation, the small number of males with the longest tail feathers produce the greatest number of offspring.
Even though the wingspan of males does not exceed 15 centimeters, some males have tail feathers 50 centimeters long.
Only the males of the species have long tail feathers, and the females always have much shorter tail feathers.
The males with the longest tail feathers are the easier to locate in their habitat than those with shorter tail feathers.
Two brown-eyed parents can produce a child with blue eyes. Which of the following best explains how this is possible?
Blue eyes are an adaptation that can help the survival of humans.
Eye color is always a mixture of the traits of both parents.
Over many generations some characteristics become more frequent.
The genes passed on by the parents can combine in a new way in the child.
The offspring of sexually reproducing organisms can be distinguished from the offspring of asexually reproducing organisms by studying which of the following?
The extent of variety in the genetic information in the population of offspring
The diet and habitat requirements for each individual organism
The average amount of time involved between fertilization and birth of the offspring
The relative sizes in height of the organisms when they reach adulthood
What is an example(s) of a genotype? (SELECT ALL THAT APPLY).
Curly Hair
GG
Gg
Straight Hair
What is an example(s) of a phenotype? (SELECT ALL THAT APPLY)
Curly Hair
GG
Gg
Straight Hair
In the punnett square below, what belongs in the missing square
The variety of genes and alleles that exist in organisms
independent assortment
chromosomal abnormalities
genetic diversity
mutations
Which is a group of organisms with similar characteristics and are able to interbreed to produce offspring
Variation
Species
Fitness
Gene
A length of DNA that codes for a specific characteristic
Variation
Species
Fitness
Gene
Process of humans breeding animals or plants with desired traits
Environmental Variation
Selective Breeding
Adaptive Feature
Genetic Engineering
What are alleles?
Long strands of DNA that contain lots of genes.
Different versions of a gene.
The basic unit of heredity; controls a specific trait.
A characteristic passed from parent to offspring
The differences that occur from a mixture of genes
What are chromosomes?
Long strands of DNA that contain lots of genes.
Different versions of a gene.
The basic unit of heredity; controls a specific trait.
A characteristic passed from parent to offspring
The differences that occur from a mixture of genes
What is an inherited trait?
Long strands of DNA that contain lots of genes.
Different versions of a gene.
The basic unit of heredity; controls a specific trait.
A characteristic passed from parent to offspring
The differences that occur from a mixture of genes
In sexually reproducing organisms, each parent contributes _____________ of the genes acquired by the offspring.
an eighth
a quarter
a half
three quarters
The difference between genotype and phenotype is :
Genotype shows the combination of alleles that provides the genes for a trait, while phenotype is the expression of the trait, what it will look like.
Phenotype shows the combination of alleles that provides the genes for a trait, while genotype is the expression of the trait, what it will look like.
Why do human siblings look similar, but not always identical if they have the same parents?
The reason that siblings can look similar without being identical is that there is always a mutation in the chromosomes.
The reason that siblings can look similar without being identical is that they have the exact same DNA, but it is in a different order.
The reason that siblings can look similar without being identical is that there are multiple combinations of alleles that code for genes, that express as traits that can be inherited.
Plants must adapt to their environment, too. Plants that live in dry climates usually have
big, round stems
wide leaves to absorb sunlight
small leaves coated in thick wax
short, small leaves
A
B
C
D
Any living thing is called a(n)
organism
behavior
mammal
creature
Camouflage means:
A special dessert
When an animal looks like another animal
A way an animal can look like its surroundings
The sharp teeth of lions are what type of adaptation?
Structural
Physilogical
Behavioral
A bird uses its beak to take food
Structural
Physilogical
Behavioral
Some kinds of birds migrate to the warmer places in the winter
Structural
Physilogical
Behavioral
A giraffe has a long neck to obtain food.
Structural
Physilogical
Behavioral
Some animals pretend to be dead to protect themselves from predators
Structural
Behavioral
Physiological
What is natural selection?
When reproduction occurs and mutations happen.
When a offspring has the traits from its parents.
When an organism is able to camoflauge in its environment.
the process whereby organisms that are better adapted to their environment tend to survive and reproduce more offspring.
