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kari74 [83]
3 years ago
6

Explain why C-14 was used to study the Wooly mammoth fossil and not other isotopes for radioactive dating?

Biology
1 answer:
ANTONII [103]3 years ago
3 0

Answer:

Explanation:

what

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What kinds of environmental problems result from population growth in (a) developing countries and (b) developed countries? Whic
Alecsey [184]

Answer:

Environmental problems result from population growth in:

a) Developing countries-

  • Air pollution due to burning of fuels and wood.
  • Water and soil pollution due to improper waste disposal.
  • Improper resource use due to illiteracy etc.

b) Developed country-

  • Overuse of natural resource
  • Deforestation.
  • Air pollution due to increased number of industries and automobiles.etc

Explanation:

A developing country is the one which is economically backward and are still combating poverty and illiteracy.

The major reason behind the population growth is illiteracy and unsafe coitus.

This results in unwanted childbirth.

The second  reason is the want for earning members to support the family.

Increasing population creates an outstanding demand of resources and creates a pressure on environment.

More and more fuels are burned and hence add up to air pollution.

Improper disposal of waste is also a major issue in these countries as most of the people being illiterate are unaware of proper ways of disposing such waste.

A developed country is at the epitome of economic growth.

The major reason behind the population growth in these country is the immigration of people from developing countries.

Being economically advance , these countries can afford best of technologies that make the utmost use of resources available.

Increase demands of settlements, industries and resources has lead to clearing of large  forest lands and deforestation.

Industries and automobiles has added up to the air pollution too.

According to me the effect of population growth in developed countries is a greater threat because these lead to overexploitation of resources by technology. more the population will grow the demand for development will also grow. Thus, this is quite difficult to control.

In case of developing countries, proper education and training will create difference to a greater extent.

4 0
3 years ago
1. Which cells of the pancreas are the endocrine cells? How were you able to differentiate these cells when viewing the slide? D
Arturiano [62]

Answer:

Explanation:

Endocrine cells in the pancreas are referred to as Islets of Langerhan. There are two major types; Beta cell that produce insulin and alpha cells that produce glucagon.

They are identified when viewed under slides based on their colour reactions with histological dyes. Tinctorial techniques that can be used to identify them under microscope includes; Mallory-Heidenhain azan trichrome, chromium hematoxylin and phloxine, aldehyde fuchsin, and silver impregnation methods.

Islets of Langerhan cells make up minority of the cell. Majority of them are for exocrine functions.

8 0
3 years ago
The cohesion-tension theory proposes that the physical properties of water allow the rise of water through a plant. Sketch and d
RoseWind [281]

Answer:

Cohesion: the attraction force between the same type of molecules.

Adhesion: the attraction force between different types of molecules.

8 0
3 years ago
Which base is normally used in the synthesis (making) of RNA but not in the synthesis (making) of DNA?
Sphinxa [80]

Uracil......... Is the answer i could find.

:3

7 0
3 years ago
Blood samples are taken from the heel of newborn babies to test for a mutation in the pku gene
larisa [96]

Answer:

The answer is true.

Explanation:

PKU is an inherited metabolic disease caused by a mutation of the gene for an enzyme responsible for metabolism of the amino acid phenylalanine.

3 0
3 years ago
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