The answer is population density
Explanation:
A Venn diagram is a diagram used to compare and show the similarity between more than two variables.
In the given question, the Venn diagram of carbohydrates and proteins has not been provided but the similarities and unique feature between them can be explained.
The similar features are:
1. Both are considered macromolecules.
2. Both are biomolecules used as energy molecules by body
3. Both perform various roles in the body like involved in the structural entity.
4. Both can be involved in body repair.
Unique features of Proteins and Carbohydrates:
1. Proteins act as cellular signalling molecules can act as an enzyme.
2. Carbohydrates act as a storage molecule by an organism like in the form of glycogen in animals and starch in plants.
The role of <u>pioneer species</u> in primary succession is to increase the diversity of a habitat after undergoing a disturbance making the soil stable and fertile for other organisms to inhabit.
Pioneer species are the first species to inhabit an area after it has undergone ecological succession.
<h2>Further explanation
</h2><h3>Pioneer species </h3>
- Pioneer species are the first organisms that invades an area after a disturbance to normalize it, thus making it habitable by other organisms.
- Pioneer species include microorganisms and organisms such as Fungi, algae, and Lichen, as well as abiotic factors such as water and wind. These organisms pave way for other organisms to grow in an area.
- Pioneer species are therefore the first stage of ecological succession and are usually hardy organisms that can withstand hostile environments.
There are two types of Ecological succession;
Primary succession;
- This is a type of succession that takes place in lifeless areas as a result of disturbances such as glaciers, lava flow from volcanoes, sand dunes, etc.
- These regions are not capable of sustaining life of organisms as a result of the disturbances caused by those factors.
<h3>Secondary succession </h3>
- Secondary succession is an ecological succession that results from disturbances such as forest fires, abandoned field or after occurrence of floods.
- The difference between the two types of ecological succession is the fact that; primary succession starts with bare rocks while secondary succession starts with existing soil and dirt.
- Additionally, it takes about a thousand years for primary succession to develop while secondary succession takes about a 100 or more years to develop.
Keywords; Pioneer species, Primary succession, secondary succession
<h2>Learn about;
</h2>
Level High school
Subject: Biology
Topic: Ecology
Sub-topic: Ecological succession
If a person is in front of a smooth surface from which a sound is reflected, the person would hear a sound that seems to come from behind the surface (B). In theory, the sound waves hit the smooth surface and bounce off the surface. The sound also repeats itself. This is known as an echo. There needs to be a time gap between the sound and the echo otherwise the listener will not hear the echo. It will still be present but form part of the original sound.
In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. The researcher can operationalize (i.e. define) the variables being studied so they can be objectivity measured.