BIOLOGY COLLEGE

plz help 25 points 2.For the early evolutionary scientists, describe their work and contribution to the Theory of Evolution.​
plz help 25 points 2.For the early evolutionary scientists, describe - 1

Answers

Answer 1
Answer:

Answer:

1.Darwin

Explanation:

Charles Darwin. The first and arguably the most famous scientist with his evolution theory

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The red-cockaded woodpecker is found in the pine forests of Georgia. It eats insects found in the barks of the pine trees and nests in the trees. How will a reduction in the number of pine trees MOST LIKELY affect the red-cockaded woodpecker? A) It will decrease in number. B) It will adapt to a new habitat. C) It will build nests in other trees. D) It will hide better from animals that eat it.
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In most cases What happens to a liquid when it cools

What are ribosomes?

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Answer:

Explanation:

Each of the organelles in the cytoplasm of a cell composed of water, proteins and RNA, and whose function is to participate in the synthesis or manufacture of proteins.
They were organelles in the cytoplasm is this science 10

Which of the following is a solution?A. ocean water
B. oil in water
C. sand in water
D. all of these

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Ocean water is the correct answer. Ocean consists salt. You can’t really see it and it’s an example of solution. Oil and water - can see oil. Sand and water - can see sand. So A is correct.
A, is ocean water! I hope it helps

What is the interpretation of the influence of the heavenly bodies onhuman affairs.
O Astronomy
Astrology
Asteroid
Android

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astrology! good luck and i hope you have a good rest of your day!!

A rolling ball has an initial velocity of 5 meters per second. 30 seconds later, its velocity is 2 meters per second. What is the acceleration of the ball?

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Acceleration is defined as the velocity of an object over a period of time.
Mathematically, 
Acceleration, A = Velocity [V] /Time [T]
From the question given above, we are told that 
T = 30 seconds
Initial velocity, V1 = 5
Final velocity, V2 = 2
Change in velocity, V = V1 - V2 = 5 - 2 =3 
A = V / T = 3 / 30 = 0.1
Therefore A = 0.1 m/s^2.

Give 8 Differences each between immunization and immunityAnyone that answers I will mark the person as brilliant

Answers

Answer:

1- The immune system develops antibodies to the disease so that it cannot make you sick again.

2- Immunization describes the actual changes your body goes through after receiving a vaccine.

3- Immunization is the process whereby a person is made immune or resistant to an infectious disease.

4- Vaccines stimulate the body’s own immune system to protect the person against subsequent disease.

5- Immunity is the capability of multicellular organisms to resist harmful microorganisms from entering their cells.

6- Immunity is the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.

7- Immunization is the action of making a person or animal immune to infection.

8- Vaccines strengthen the immune system.

Where does carbon come from in a winogradsky column? 2. why is carbon important? 3. what purpose does calcium sulfate serve in the winogradsky column? 4. why is a hydrogen sulfide gradient generated from bottom to top in a winogradsky column? 5. how is photosynthesis different between cyanobacteria (growing at the top of the column) and green and purple sulfur bacteria (growing near the bottom 1/3 of the column)?

Answers

Answer:

1.The Winogradsky section is a straightforward gadget for refined an enormous decent variety of microorganisms.The gadget is a segment of lake mud and water blended in with a carbon source, for example, paper which contains cellulose, darkened marshmallows or egg-shells which contains calcium carbonate.

2. carbon is important for providing cellulose for winogradsky column.

3.calcium sulphate in the form of gypsum or plaster of paris, craft or garden stores is used. green suphur bacterias and purple sulphur bacterias are formed after 2 to 6 weeks.

4.A hydrogen sulfide slope is created from the base to top in a Winogradsky section since sulfur-decreasing microorganisms like Desulfovibrio (microbes that utilizes maturation side-effects like Ethanol and Organic acids from Clostridium as a carbon source by means of anaerobic breath) produce a lot of H2S as a result of anaerobic breath. The H2S gradually diffuses upwards and is utilized by different life forms. The explanation the angle is higher at the base is on the grounds that anaerobic microscopic organisms like  Desulfovibrio can't endure where O2 is available. The further down in a Winogradsky section the more anaerobic the earth. Along these lines, bigger measures of H2S are created at base of segment in light of the fact that there is a higher grouping of anaerobic microorganisms that produce H2S at the base as side-effect of their anaerobic breath process

5.Rather than utilizing water to photosynthesize, similar to plants and cyanobacteria, purple sulfur microscopic organisms use hydrogen sulfide as their decreasing operator, which is the reason they radiate sulfur as opposed to oxygen.

Explanation:
Carbon comes from blackened marshmallow or egg-shells, newspapers which contain cellulose, and sulphur source, for example, calcium sulphate in winogradsky column.
Carbon is important because it promotes the growth of different microorganisms. For example chlorobium, chromatium, rhodomicrobium, and Beggiatoa. 
Hydrogen sulphide gradient is generated from bottom to the top in a winogradsky column because they dominate the zone with sulphur which reduces bacteria.
Photosynthesis is different between cyanobacteria and green and purple sulphur which is sulphur anaerobic bacteria being the top layer of aerobic bacteria which produces carbon dioxide which feeds back into the column by creating another reaction.
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