1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Archy [21]
3 years ago
6

1. The fossils of an extinct mammal, Ambulocetus, show that it had four legs so it had the ability to walk on land. It also had

a long tail thought to help it in swimming
What kind of evidence makes Ambulocetus the probable ancestor of modern whales?
A. Behavior B. bones C. coloring D. diet

2. A science museum displays a flat rock that contains a fossil imprint of a type of plant called a fern. Beside the rock is a drawing of a modern fern. What evidence can you conclude from comparing the two ferns?

Fossil Fern Modern Fern
A. Ferns are eaten by omnivores.
B. Ferns grow in every environment.
C. Ferns have changed little over time.
D. Ferns require sun for photosynthesis.


3. When Charles Darwin first observed the finches on the Galapagos Islands, he noticed that the beaks of the birds on each island were different. The drawings below show four different beaks.

What is a possible explanation for the difference in the birds’ beaks?

A. Adaptation to different food sources
B. Adaptation to different temperature ranges
C. Ability to attract different mates
D. Ability to protect from different predators

4. A certain characteristic such as color of fur may help an individual organism survive and reproduce. The characteristic is then inherited by its offspring. Over time the characteristics of this kind of organism in the population change. What is the scientific name for this process?

A. Natural selection
B. Petrification
C. Selective genetics
D. Uniformitarianism

5. A farmer wanted to find out if the number of plants per field would impact the final number of plants that survived in a field. Fields A, B, and C were the same size with the same type of soil. They also received the same amount of light and water.
Number of plants at the beginning of the season Number of plants at the end of the season
Field A 500 450
Field B 750 600
Field C 1,000 300

What is a possible explanation for the decrease in the final number of plants in Field C?

A. Only plants with specific traits survived.
B. Plants with deeper roots received more water.
C. Plants whose seeds were carried by wind survived.
D. Too many plants in a small area competed for nutrients.



6. A forest ecosystem contains many small mammals such as chipmunks and mice that live in the brown leaves on the forest floor. Imagine that a population of white mice was introduced into the forest environment. Why would there be no white mice found in the forest one year later?
A. The mice could not find water.
B. The mice could not find shelter.
C. The mice could not find and store food.
D. The mice could not hide from predators.


7. Bacteria are microscopic organisms that reproduce rapidly and often cause disease. Antibiotics are drugs given to people to cure bacteria-caused diseases. Since the 1950s, scientists have observed that antibiotics cannot kill many kinds of bacteria. What best explains the reason why antibiotics are less effective now?

A. People today do not take antibiotics as directed by doctors.
B. Antibiotics used today are weaker drugs than those used in the past.
C. The genes of some kinds of bacteria make them resistant to antibiotics.
D. Doctors have increased the testing of patients for diseases caused by bacteria.


8. Zebras are animals that live on the grasslands of Africa. Lions prey on zebras, especially the young
Which of the following would be an example of “survival of the fittest” among zebras

A. Being able to eat many kinds of food
B. Being able to run very fast
C. Having wider stripes
D. Having shorter legs
9. The golden toad was a small, shiny toad that was abundant in a tropical rain forest in Costa Rica. The toads laid eggs in small pools of water. When the tadpoles hatched, they swam in the water until they became adult toads. Between 1987 and 1989 a dramatic drop in rainfall occurred in the area. Not a single toad has been seen since 1989.
What is the most likely reason that the golden toad is now believed to be extinct?

A. Predators ate all the toads.
B. The toads could not find mates.
C. The toads moved to another area.
D. Lack of rain interrupted the life cycle of the toads.


10. Crickets living in caves eat fungi and often only one type of insect. Which of the following would most likely result in the cricket becoming extinct over a long period of time?

A. The cricket produces many offspring with unique traits and changes its diet.
B. The cricket produces few offspring with no new traits and changes its diet.
C. The cricket produces many offspring with unique traits and does not change its diet.
D. The cricket produces few offspring with no new traits and does not change its diet.


Short Response

11. Darwin’s observations of the unique characteristics of animals on each of the Galápagos Islands led to his development of theory of evolution by natural selection. How do observations lead to the development of a scientific theory?
Geography
2 answers:
krok68 [10]3 years ago
6 0

Answer:

1:B

2:C  

3:A(I think)  

4:D  

5:D

6:D

7:C

8:B

9:D

10:C(?)

Explanation:

Hopefully some of these will help!!!

julia-pushkina [17]3 years ago
5 0

Answer:

1. B. bones

2. B. Ferns grow in every environment.

3. A. Adaptation to different food sources

4. A. Natural selection.

5. D. Too many plants in a small area competed for nutrients.

6. D. The mice could not hide from predators.

7. C. The genes of some kinds of bacteria make them resistant to antibiotics.

8. B. Being able to run very fast.

9. D. Lack of rain interrupted the life cycle of the toads.

10. B. The cricket produces few offspring with no new traits and changes its diet.

Explanation:

11. About 13 major island exist in the Galapagos island and all have diverse and unique species and made his theory on there behavior and adaptation patterns.

You might be interested in
The passage states that "rising ocean temperatures also affect the ecosystems in the coral reef, throwing off the delicate balan
MAVERICK [17]

Answer:

Rising ocean temperatures will influence reef species to move to another area that has cooler areas.

Pollution will create dead zones where there are little to no wildlife. Material pollution like plastic will also kill marine life.

Human interference can affect the ecosystems by polluting, overfishing, and destroying coral.

Explanation:

Some marine life are not suitable to warm temperatures, and this will cause them to move to cooler ones, disrupting the normal balance the ecosystem once had.

Pollution from fertilizer runoff and others can deplete the oxygen in the water, and animals like turtles believe plastic is food and will kill them by destroying internal organs and blocking intestines.

Humans pollute and overfish, and this throws the ecosystems off balance because it will create dead zones and will significantly decrease the amount of wildlife there. Humans also destroy coral, which will make reefs die and destroy habitats for wildlife.

8 0
3 years ago
What is the largest mountain system in North America?
MAVERICK [17]
The Rocky Mountains is the largest mountain system in N.A 
7 0
3 years ago
Before european settlers arrived the great plans of nort america were:
weeeeeb [17]
Colonize Africa or South America to settle more colonies there
4 0
2 years ago
HELP :))))))))))))))))))
tankabanditka [31]

Answer:

im not quite sure but i think i need to see the maps

Explanation:

5 0
2 years ago
An igneous rock layer formed when magma hardens beneath earth's surface
Rufina [12.5K]
I believe it is called <span>intrusive igneous.

Hope this helps,
♥<em>A.W.E.<u>S.W.A.N.</u></em>♥</span>
6 0
3 years ago
Other questions:
  • Explain the rock cycle by describing how an igneous rock can become a sedimentary rock
    14·1 answer
  • What forms low islands?
    12·1 answer
  • n what form is the majority of freshwater on Earth found? a. Ice caps and glaciers b. Groundwater c. Water in lakes, rivers, and
    8·1 answer
  • What continents did the roman empire expand to?
    12·2 answers
  • Most rivers have relatively gentle gradients in the headwaters and steep gradients in their downstream portions.
    5·1 answer
  • How does a hurricane impact the hydrosphere​
    14·1 answer
  • Question 7 help pls I will give brainlest
    15·2 answers
  • Explain Europe's cultural diversity. please this is my last assignment.
    8·2 answers
  • The eras of the geologic time scale are best defined by a. Changes in climate b. Asteroid impacts c. Mass extinction events d. O
    5·1 answer
  • Why can't the dark matter in galaxies be made of neutrinos?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!