Créer une activité
Ico create Educaplay Créer une activité
Toutes les activités
Jouer Test
1. 
Vera has a cut on her hand. After a few days, the cut has become red, swollen, and painful. She makes an appointment and goes to the doctor. The doctor prescribes an antibiotic to fight a bacterial infection and tells her to take the medication for 10 days. After taking the antibiotic for a few days, her cut seems to be healing well. The cut seems so much better that Vera decides to stop taking the antibiotic. The next day, it turns red again. She starts taking the antibiotic again but it does not seem to make it better. Vera returns to the doctor who gives her a different antibiotic and instructs her to be sure to take the full prescription. What best explains why the first antibiotic stopped working?
A.
A new species of bacteria was present
B.
The bacteria species was affected by natural selection
C.
The first antibiotic was past the expiration date
D.
The doctor had given her the wrong medication the first time
2. 
. A Florida manatee lives in the water and can grow very large. A hyrax is a small rodent-like animal that lives in Africa. These animals do not look similar to each other, but they are related. What do these animals share?
A.
the way they obtain food
B.
a common ancestor
C.
cells that have no nucleus
D.
the exact same DNA
3. 
Which is an example of natural selection?
A.
The faster cheetahs catch their prey, while the slower ones do not eat enough to survive
B.
A bear cub relies on its mother to teach it how to hunt and fish.
C.
A blue whale lives for 15 years and then dies from exposure to pollutants dumped in the ocean
D.
A child chooses the smallest puppy in a litter to take home as a pet.
4. 
Which is an example of adaptation?
A.
Organisms compete for the resources in an ecosystem
B.
Only strong organisms survive in harsh environments.
C.
Organisms change their environments to meet their needs
D.
Organisms change to better survive in their environment.
5. 
Which of these processes is similar to natural selection?
A.
Luck of the draw
B.
Sexual reproduction
C.
Survival of the fittest
D.
Classification of living things
6. 
A dog breeder wanted to produce a small variety of cocker spaniel. He mated the smallest dogs from various litters for many generations. This is an example of
A.
natural selection
B.
selective breeding
C.
mutation
D.
asexual reproduction
7. 
Over time, the giraffe has developed a longer neck so that it has a better chance at obtaining food from treetops. This is an example of
A.
revolution
B.
reproduction
C.
. metamorphosis
D.
natural selection
8. 
According to the theory of natural selection, why are some individuals more likely to survive and reproduce than others?
A.
Some individuals pass new characteristics they have acquired during their lifetimes on to their offspring.
B.
Some individuals are better adapted to survive in their environment than others.
C.
Some individuals do not pass new characteristics they have acquired during their lifetimes on to their offspring.
D.
Some individuals produce fewer offspring than others in the same environment
9. 
Genetic variations help to cause evolution. These variations cannot be affected by natural selection unless they:
A.
produce unfavorable traits
B.
produce favorable traits
C.
are found in fossil records of a population
D.
are a trait of the organism
10. 
. According to Darwin’s theory of evolution, differences between species may be the result of
A.
the disuse of body structures
B.
the transmission of acquired characteristics
C.
natural selection
D.
mutagenic agents
11. 
_____________ are characteristics of a species that make its members better able to live and reproduce in their environment.
A.
Favorable adaptations
B.
Homologous structures
C.
Abiotic factors
D.
Biotic factors
12. 
Each statement below says something about the members of a population that survive and reproduce. Which statement is part of Darwin's theory of natural selection?
A.
They pass on characteristics acquired by use and disuse
B.
They produce fewer offspring that those that do not survive
C.
They are the ones best adapted to exist in their environment
D.
They will pass on unfavorable changes in the species.
13. 
In his theory of Natural Selection, Charles Darwin proposed that organisms produce more offspring that can survive on the limited resources available to them. According to Darwin, the offspring most likely to survive are those that
A.
are born first and grow fastest
B.
are largest and most aggressive
C.
are best adapted to the environment
D.
have no natural predators
14. 
How does natural selection cause changes in a population?
A.
The members of the population are equally able to survive any environmental change
B.
The members of the population differ so that only some survive when the environment changes.
C.
The members of the population do not adapt to environmental changes
D.
All the members of the population adapt to environmental changes.
15. 
Some behaviors such as mating and caring for young are determined genetically in certain species of birds. These behaviors are still present in the species because
A.
birds do not have the ability to learn to mate and care
B.
individual birds need to learn to survive and reproduce
C.
these mating and caring behaviors helped birds to survive in the past and were passed on to the offspring
D.
within their lifetimes, birds developed these behaviors in order to survive in a certain environment
16. 
The highest rate of natural selection would probably occur in which situation?
A.
Organisms reproduce by an asexual method in an unchanging environment
B.
A species with a very low mutation rate reproduces in a stable environment
C.
Organisms reproduce in an unchanging environment with little competition and few predators
D.
Organisms showing many genetic differences reproduce in a changing environment.