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
Nimfa-mama [501]
2 years ago
11

A thick mass of tough roots called loess kept the fertile soil of the prairies in place and held on to moisture.

Biology
1 answer:
Annette [7]2 years ago
4 0
The answer is f it's not true
You might be interested in
Scientist involved in biotechnology sometimes insert DNA of one organism into a second organism. What is the purpose of this pro
dezoksy [38]

Answer:

1. to increase meiosis.

2. to make more efficient cell organelles.

3. to cause the second organism to produce protein

Explanation:

7 0
3 years ago
Birds are the main predators of these beetles; they hunt the beetles by sight and pick them off the tree bark where they feed. A
Alinara [238K]

Complete question:

1. The graph below depicts the frequency of expression of the coloration of beetles on an island:

Graph is the 1st Pic --> Attached files    

Birds are the main predators of these beetles; they hunt the beetles by sight and pick them up off of the tree bark where they feed. A logging company clears the trees off of the island and plants younger trees as a replacement. Trees with light bark are planted on one side of the island and trees with dark bark are planted on the other side of the island. What do you predict would happen to the range of coloration in the populations of beetles on each side of the island?

Select TWO answers, one to represent the beetles living on the light colored trees and one to represent the beetles living on the dark colored trees. (2 points)

A. graph 2 below

B. graph 3 below

C. graph 4 below

D. graph 5 below

Answer:

B. graph 3 below

D. graph 5 below

Explanation:

The original population of beetles (Graph 1) shows that most individuals had an intermediate phenotype between dark and light color. The graph expresses its highest point in the middle of the phenotypic ax, while the curve´s tails coincide with light and dark colors.

Probably, most of the trees inhabiting the whole island had some darkish color tone, which beetles used to camouflage and avoid predation.

When the company cleared the area and reforested, they planted light trees on one half and dark trees on the other half of the island. This change in the environment modeled the beetled phenotype, together with predation pressure.

<em>If we consider the whole original population, we should say that it went under a disruptive selection.</em> But if we think about the sides of the island separately, we could say that the population living on each side went under directional selection. We are not thinking about the whole population of beetled inhabiting the whole island, but two groups inhabiting each side of the island.

  • Graph 3 represents the beetles inhabiting the part of the land with dark trees. The population went under directional selection, and most of them turned into dark-colored to camouflage with the substrate in which they live.
  • Graph 5 represents the beetles inhabiting the other part of the land with light trees. The population went under directional selection, and most of them became light-colored to camouflage with the substrate in which they live.

8 0
3 years ago
Which statement BEST describes how low species biodiversity affects ecological resilience?
Art [367]
Food webs with fewer species are more sensitive to the loss of species and ecosystem disturbances
4 0
2 years ago
Science Plzzzzzzzzz!!
Annette [7]

Answer:

Yes??

Where is your question

7 0
3 years ago
Ailani age 3 is lactose intolerant and unable to drink milk or to eat dairy products. what nutrients is most likely deficient in
svetlana [45]
Calcium. Almonds, broccoli, oranges, kale
8 0
3 years ago
Read 2 more answers
Other questions:
  • Are bacteria single or multi-cellular
    15·2 answers
  • The brain and spinal cord are known as the central nervous system(CSN). The spinal cord contains nerves that send information to
    12·1 answer
  • A researcher is collecting qualitative data pertaining to social behaviors of deer at different times of the day. How will she m
    10·1 answer
  • The three major literary genres are drama, poetry, and __________.
    14·2 answers
  • Formaldehyde is used in the manufacture of:<br> medicine<br> Glass <br> acids<br> plastics
    13·1 answer
  • An important part of science? Open-mindedness,skepticism,or both.
    10·2 answers
  • What is the best way to get my all my high school work done​
    6·1 answer
  • In this field of sunflowers, variation exists. Some flowers are tall, others short, and finally some plants are an intermediate
    12·1 answer
  • We have learned to:
    8·2 answers
  • In humans, which set of sex chromosomes do females have?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!