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
Romashka [77]
3 years ago
13

Some biologists urge the collection of the few remaining individuals of some of the most threatened amphibian species in order t

o preserve them if they become extinct in the wild. If such captive-breeding programs could produce thousands of individuals from just a few of the remaining survivors, the species will still be threatened because of ________.
Social Studies
1 answer:
Naddik [55]3 years ago
6 0

Answer:

the bottleneck effect

Explanation:

  • The bottleneck effect is the sharp in the population size due to the fact of the environmental changes such as the famines and the floods and the diseases and other events that lead to the variation in the gene pool s and thus a reduction of the species with a smaller remaining genetic diversity. The genetic drift causes the bottlenecks and this can create a random alternation of the alleles and leads to the loss of the species.
You might be interested in
Which answer best completes this diagram?
horrorfan [7]

Answer: Labeling each answer in order as A, B, C and D, the correct one is D, senators are elected direclty by each state´s voters.  

Explanation: The 17th Amendment replaced the constitution's Article 1 section 3, clauses 1 and 2, which establish that each senator must be elected by each state´s legislature.

7 0
3 years ago
Bloodletting, a treatment devised centuries ago to restore the balance of humors, was accomplished with the use of:______.
andrew11 [14]

Bloodletting, a treatment devised centuries ago to restore the balance of humors, was accomplished with the use of leeches.

Bloodletting was divided into a two methods. It was  done by either  venesection and arteriotomy.

A localized method was also done by scarification done with cupping and leeches.

Venesection was the most commonly used procedure and generally involved the vein at the elbow, but also many different veins could be used for this treatment.

The major instruments which were used for this technique were called lancets and leeches.

To know more about blood letting here:

brainly.com/question/19414306

#SPJ4

4 0
2 years ago
It is the custom for paper mills located alongside the layzee river to discharge waste products into the river. as a result, ope
larisa [96]
If the government intervenes  and corrects the externality in the situation described above, the expectations are 

the output of the paper mills to increase. The price of paper from the mills to decrease. Production of the hydroelectric power plants to decrease. production in the paper mills to decrease.
3 0
3 years ago
Read 2 more answers
What is the Constitution?
Marianna [84]

Answer:

The law that describes the rights

Explanation:

declaration of independence had us separate from england and made some rights, the constitution told us in detail about those rights and is updated here and there

3 0
3 years ago
Wnts play an important role in promoting emt in developing neural crest progenitors. what is the receptor for secreted wnts?
Anvisha [2.4K]

The receptor for the secreted Wnts is Frizzled.

Frizzled proteins are receptors for secreted Wnt proteins, as well as other ligands, and also play a critical role in the regulation of cell polarity during embryonic development. The frizzled genes were first identified in Drosophila in a screen for mutations that disrupt the polarity of epidermal cells in the adult fly.

Frizzled proteins also play key roles in governing cell polarity, embryonic development, formation of neural synapses, cell proliferation, and many other strategies in developing and person organisms. those processes occur because of one in every of three signaling pathways.

These include the canonical Wnt/β-catenin pathway, Wnt/calcium pathway, and planar cellular polarity (PCP) pathway. Mutations within the human frizzled-4 receptor were related to familial exudative vitreoretinopathy, an extraordinary disease affecting the retina in the back of the attention, and the vitreous, the clean fluid internal the eye.

Learn more about proteins here: brainly.com/question/10058019

#SPJ4

7 0
1 year ago
Other questions:
  • What is a stained glass window? please help!
    7·1 answer
  • In the mid-20th century, the American Psychological Association (APA) considered homosexuality a disease. Since that time, the A
    8·1 answer
  • While action research is gaining popularity among students, why is this methodological approach controversial among more traditi
    8·1 answer
  • The Practice 1: Personality and Careers activity is designed to help you to: Group of answer choices Create a new way to apply f
    15·1 answer
  • The two major political parties in the US are considered part of
    8·1 answer
  • If you were to design a long-term research study to determine why there are no human births in Lapland during the months of Augu
    13·1 answer
  • Imi puteti slune si mie 2 cuvinte cu prefixul ne si des?​
    15·2 answers
  • Which example describes natural rights?
    15·1 answer
  • Help ASAP! I'll mark you brainliest
    8·1 answer
  • What did early observers mean when they used the term la belle indifférence to describe individuals with conversion disorder?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!