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Which of the following is true about genes?(1 point)
Responses
Genes are responsible for all the traits of an organism.
Genes are responsible for all the traits of an organism.
In humans, genes are passed to an offspring from two parents.
In humans, genes are passed to an offspring from two parents.
Genes are made up of smaller molecules known as chromosomes.
Genes are made up of smaller molecules known as chromosomes.
The genes of a particular organism can never change throughout its lifetime.
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THE CORRECT ANSWER IS:
Genes are responsible for all the traits of an organism.
Which of the following is a method of reproduction that generally occurs very rapidly?(1 point)
Responses
hybridizing
hybridizing
sexual
sexual
asexual
asexual
germination
THE CORRECT ANSWER IS:
asexual
Sexual reproduction produces offspring that are genetically _______ to the parents.(1 point)
Responses
Identical
Identical
unrelated
unrelated
similar
similar
opposite
THE CORRECT ANSWER IS:
similar
Some redwood trees reproduce both sexually and asexually. Once a tree reaches maturity, it can reproduce with another tree through pollination and fertilization. The tree then disperses thousands of seeds so that some of them might take root. However, a tree can also reproduce asexually. If it falls down, several smaller trees can sprout from its trunk without the need of fertilization.Why is it advantageous for a redwood to reproduce sexually when it could reproduce asexually instead?(1 point)
Responses
It reduces the need to find a mate.
It reduces the need to find a mate.
It increases the energy needed to reproduce.
It increases the energy needed to reproduce.
It increases the genetic diversity of the tree's offspring.
It increases the genetic diversity of the tree's offspring.
It decreases the time needed to reproduce.
THE CORRECT ANSWER IS:
It increases the genetic diversity of the tree's offspring.
_______ provide evidence that living things evolved from earlier species.(1 point)
Responses
Historical fictions
Historical fictions
Religions
Religions
Fossils
Fossils
Videos of dinosaurs
THE CORRECT ANSWER IS:
Fossils
Which of the following is an example of natural selection?(1 point)
Responses
Pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population.
Pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population.
Cricket frogs prefer to sleep during the day, while red-eyed tree frogs prefer to sleep during the night.
Cricket frogs prefer to sleep during the day, while red-eyed tree frogs prefer to sleep during the night.
To produce a more desirable fruit, a farmer crosses a tree that produces sweet oranges with a tree that produces large oranges.
To produce a more desirable fruit, a farmer crosses a tree that produces sweet oranges with a tree that produces large oranges.
Rabbits with a mutation for longer, thicker fur survive an unusually cold winter, while many normal rabbits do not survive.