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
makkiz [27]
2 years ago
9

1. Why is the quadrat method useful for estimating snall populations? Explain why the same method would not be useful for counti

ng fish populations.​
Biology
1 answer:
irga5000 [103]2 years ago
7 0

Answer:

Quadrat method is used for estimating the number of individuals in an area. In this method, a large square area on the ground or water surface is marked, call it an enclave. The number of animals present in this enclave is counted. Then by assuming that the animals are less migratory and are uniformly distributed, their number for a large area is estimated by the use of unitary method of calculation. Example a 4 square feet area has 2 snails, then a 1000 square feet area will have (1000 x 2)/4, i.e, 500 snails in it. Fishes can be counted using this method only if they are confined in a small water body like a lake or a pond. Rivers are flowing so the fishes may move along its length which can give us an underestimate or an overestimate of their numbers. Sea has its depth and huge area, and fishes can be moving randomly in it. Hence this method will not work for river and sea fishes.

Explanation:

Hope this helps :D

You might be interested in
Historically, physicians have used a procedure called xenodiagnosis to diagnose which of the following diseases?A. schistosomias
Mrac [35]

Answer: C. Chagas disease

Explanation:

Xenodiagnosis is a method of diagnosis and detection of the microorganism responsible for infecting the tissues of the body.

Chagas disease is a potentially life threatening disease. It is caused by the protozoan parasite called as Trypanosoma cruzi. It is transmitted to people through the feces of insects. This disease is common in South and Central America and in Mexico. The xenodiagnosis is used to detect the parasite responsible for the Chagas disease.

5 0
3 years ago
What goes with it ?
cricket20 [7]

Photosynthesis does all those things. Releases energy in the form of ATP, stores energy in glucose molecules, performed by producers, and performed by consumers.

3 0
3 years ago
Read 2 more answers
Please answer fast ASAP I give brainliest <br><br><br> All you need is on the photo
lys-0071 [83]
B: a molecule within DNA
3 0
3 years ago
You get home from school and grab a bag of potato chips before settling onto the couch to binge watch your newest Netflix series
snow_tiger [21]

Answer:

Explanation:

Osmosis is the process in which the molecules of a solvent move from a region of low concentration to a region of higher concentration through a semi-permeable barrier.

While eating the chips, <u>the salt content from the chips makes the surrounding solution of the cells to have an increase in salt concentration causing an hypertonic solution</u>. An hypertonic solution is a solution that has more solute (salt) than the (solute in a) cell. <u>This increase in salt concentration around the cells causes the cells to release water to neutralize the high salt concentration in the solution around the cell (in order to maintain homeostasis)</u> which causes dehydration in the individual and hence making the individual to be thirsty. <u>The body attempts to maintain balance by passing this excess salt out of the body in the form of urine hence the reason for the dark colour in the urine </u>(because if the body doesn't rid itself of the high salt concentration, the cells could shrink and die as a result).

3 0
3 years ago
Which cells in the body are targeted by HIV?
Sindrei [870]
T cells. When HIV arrives in the lymph nodes – around 24 to 48 hours after exposure – they activate other immune cells, such as CD4 t-cells, HIV's primary target.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Members of one kind of organism in an ecosystem
    10·1 answer
  • Name one disadvantage of light microscopes
    6·2 answers
  • How did artificial selection help Charles Darwin's of evolution
    14·1 answer
  • The relationship between hemoglobin ____________ and po₂ is shown by an oxyhemoglobin dissociation curve.
    8·2 answers
  • Quick help<br> What are the two other sphere around the earth that can interact with the geosphere
    7·1 answer
  • The difference between gross and fine motor skills is whether they: A. involve bigger or smaller muscles. B. involve mental or p
    9·1 answer
  • Please help me out with this one
    15·1 answer
  • A substance that can be reused is called what?
    5·1 answer
  • Catfish feed ingredients<br>​
    8·1 answer
  • What might happen to the ecosystem of the rainforest if the population of spider monkeys were removed? Correct answer gets brain
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!