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
Nezavi [6.7K]
2 years ago
14

A scientist studied a population of birds for 10 years. During that time, the population was never fewer than 30 birds and never

more than 50. Her data showed that over half of the birds born did not survive to reproduce, because of competition for food and predation. She noticed that In a single generation, about 90% of the birds that were born lived to reproduce, and the population increased to 90. Which inference(s) about this population might be true
Biology
1 answer:
ahrayia [7]2 years ago
3 0

Answer:

A particular population limiting factor or factors must have been removed

Explanation:

The population of the birds must have been kept between 30 and 50 individuals by population limiting factors such as the presence of predators within the community or competition for resources such as food or spaces.

For the population to shoot up to 90 all of a sudden, it may be that one or more of the population limiting factors has been removed from the population. <u>It could be that a major predator has been removed from the community or the competition for food/space is now significantly reduced due to more food/space in the community. </u>

You might be interested in
True or false: All homogenous mixtures are solutions.
Thepotemich [5.8K]
True - a homogenous mixtures is a mixture that has the same amount of solute. 
6 0
3 years ago
Read 2 more answers
Fossilized non-seed vascular plants from the ____________________ Period have been identified. a. Devonian c. Permian b. Cambria
Ipatiy [6.2K]
Fossilized non-seed vascular plants from the Devonian period have been identified. 
<span>The Devonian is an early period and conformity of the Paleozoic Epoch forming from the edge of the Silurian Era.</span>
6 0
3 years ago
This membrane mimics the __________________ that is around animal cells. In order to explore how water moves in and out of a cel
Olenka [21]

This membrane mimics the plasma membrane that is around animal cells. In order to explore how water moves in and out of a cell, one cell was weighed and then submerged in hypertonic solution. The other egg was weighted and submerged in hypotonic solution. It was predicted that the egg submerged in hypertonic solution  would decrease in mass. It was predicted that the egg submerged in hypotonic solution would increase in mass.

Explanation:

The outermost covering of an animal cell is the plasma membrane. It is a selectively permeable membrane that allows only selective molecules to pass through it.

A solution having higher concentration of solute than the cell cytoplasm is called a hypertonic solution.

A solution having lower concentration of solute than the cell cytoplasm is called the  hypotonic solution.

The movement of water molecules from the region of its higher concentration to the region of its lower concentration through a semipermeable membrane is called osmosis.

A cell placed in hypertonic solution will undergo exosmosis so it will lose water and its mass will decrease.

A cell placed in hypotonic solution  will undergo endosmosis of water  so it will gain water and its mass will increase.

8 0
3 years ago
What are human body tissues
Shalnov [3]
Tissue is a group of cells that have similar structure and that function together as a unit. ... There are four main tissue types in the body: epithelial, connective, muscle, and nervous. Each is designed for specific functions
7 0
3 years ago
True or false:
Kitty [74]

1. True

2. Omitted what?

8 0
3 years ago
Other questions:
  • Which of the following will occur when a water molecule bonds with a spider web
    11·2 answers
  • Which choice below represents an organism with two recessive alleles
    7·1 answer
  • Which of the following is not an appendicular muscle?
    5·1 answer
  • Which of the following is the most important factor governing a cell's particular type of interaction with other cells
    11·1 answer
  • The type of b cell which remains in the body after an invasion is over is called a
    5·1 answer
  • How does overtillage harm soil
    5·1 answer
  • What are the genes on the x chromosome ​
    9·1 answer
  • Cuántos factores tiene los ecosistemas
    5·1 answer
  • Human activities often lead to eutrophication of freshwater systems. What are the impacts of eutrophication on lakes?
    8·1 answer
  • How does the process of cytokinesis differ from the process of mitosis?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!