All categories

3 years ago

In the oldest fossils found in Bitter Springs (Cyanobacteria), why can we only find the remains of single celled organisms

Biology

1 answer:

Mrac [35]3 years ago

5 0

Answer:

Due to presence at early days of the planet.

Explanation:

We only find the remains of single celled organisms in the oldest fossils because the single celled organisms are the organisms that were present in the early days of this planet. These single celled microbes were present about 3.7 billion years ago while on the other hand, the oldest rocks are only a little older i. e. 3.8 billion years so these single celled organisms are considered as oldest fossils on this planet.

You might be interested in

What causes chemical waste ?

Softa [21]

Answer:

factories produce toxic chemicals
Groundwater Contamination
Illegal Dumping
Sewerage
Leaks and Spills
Industrial Growth

Explanation:

Chemical waste is a waste that is made from harmful chemicals (mostly produced by large factories). Chemical waste may fall under regulations such as COSHH in the United Kingdom, or the Clean Water Act and Resource Conservation and Recovery Act in the United States.

[ Impact of Chemical Waste on Water Streams. Improperly managed chemical waste may pollute and contaminate water streams. There are many causes of this type of industrial water pollution, which has both serious and negative impacts on aquatic and human life.]

7 0

3 years ago

When the double stranded DNA helix is unwound, two single strands of DNA are formed. These strands have to be stabilized because

Pie

Answer:

single-strand DNA-binding protein

Explanation:

Based on the scenario being described within the question it can be said that these proteins are known as single-strand DNA-binding protein. They are protein mainly in the E. Coli bacteria, and bind to single-straded regions of DNA. They are a main functional part of everything related to DNA metabolism such as replication, recombination, and repair.

7 0

3 years ago

Why is it necessary to phosphorylate a glucose molecule, creating glucose-6-phosphate? why is it necessary to phosphorylate a gl

expeople1 [14]

It is necessary to phosphorylate a glucose molecule so as to trap glucose inside the cell, to make ATP, and to facilitate enzyme building. When insulin is released from the pancreas after a meal, it signals the tissues to uptake glucose. When glucose enters the cells via glucose transporters, there is a chance for them to leave the cell. If the body is in need of energy, and the breakdown of glucose will provide that energy, the body does not want the glucose to leave the cell and that is why the glucose is phosphorylated by ATP to become glucose-6-phosphate, which now bears a charge.

6 0

3 years ago

What environmental factors had an impact on the coyote population?

melisa1 [442]

Human population, geographical region, land cover, housing density, and precipitation

6 0

2 years ago

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