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
yaroslaw [1]
3 years ago
15

Early one spring, a group of bird-watchers counted 30 different species of birds in a tract of forest. In the early spring two y

ears later, the bird-watchers counted 15 species in the same area. Which statement best summarizes this situation?
Birds follow different migratory paths each year.

The forest shows a decrease in biodiversity.

Human beings disrupt the presence of animals in ecosystems.

It is important to study living things to better understand the earth
Biology
1 answer:
Gemiola [76]3 years ago
5 0
The forest shows a decrease in biodiversity
You might be interested in
What conclusions can you infer about the heart of an adult with poor fitness
vladimir1956 [14]
Poor fitness can cause your heart to start disfunctioning, and not beating the way it should be. If an adult is not exercising often, they can end up having major heart problems that can affect the way they see their future.
7 0
3 years ago
Read 2 more answers
Which situation involves mainly biotic factors? *
kompoz [17]

Answer:

A

Explanation:

because it increase alot of living organisms it A

5 0
3 years ago
Do all polypeptides have tertiary structures
andreev551 [17]
Yes, all polypeptides have tertiary structures. All proteins have primary, secondary and tertiary structures. However, quaternary structures only arise when a protein is made up of two or more polypeptide chains. Hope this answers the question. Have a nice day.
4 0
3 years ago
The process of union between egg and sperm.
Anestetic [448]
It’s mitosis hope this helped !
Explanation: Fertilization occurs when the nucleus of both a sperm and an egg fuse to form a diploid cell, known as zygote. The successful fusion of gametes forms a new organism.
5 0
2 years ago
The ocean is called the carbon sink because there is mass amounts of carbon all the way at the bottom. How did the carbon get th
Solnce55 [7]

There is absorption of carbon dioxide by the oceans through physicochemical (air-sea surface exchange) and biological processes. During physicochemical process, molecules of CO2 get into the ocean by diffusing into the sea surface waters and dissolving. Various factors such as wind, sea surface mixing, concentrations of CO2, and the temperature of the water influences the amount of CO2 that diffuses and dissolves in the ocean surface water. Also, during biological processes, dead cells, shells and other parts of dead organisms get decayed and releases carbon dioxide at the bottom of the water.






5 0
3 years ago
Other questions:
  • How does photosynthesis help plants meet their basic needs?
    9·1 answer
  • Uranium-235 undergoes nuclear fission as shown in the diagram below.
    11·2 answers
  • When air gets warm does it sink or rise?
    10·1 answer
  • A fellow student brought in a leaf to be examined. The leaf was dark green, thin, had stoma on the lower surface only, and had a
    7·1 answer
  • Which of the following happened during the Precambrian Era?
    13·1 answer
  • The cartilage on the ends of long bones serves which of the following functions? *
    8·1 answer
  • How does fecal coliform get into the water
    11·2 answers
  • How do you think traits can change over time
    14·1 answer
  • The _____ functional group can always be found in a carbohydrate molecule.
    14·1 answer
  • When are some of the important combinations active?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!