Answer:
The density- independent limiting factors that can affect a population include food, predation, toxic waste and environmental disasters.
Explanation:
Density independent factors like <u>natural calamities which include volcanic eruptions, hurricane, floods, earthquake</u>, etc are not influenced by population density change. For example, the current rampaging bush fire in Australia has caused a lot of damage to different animal and plant species. Many populations of species have become endangered and others are wiped off.
The quality of nutrients available in an environment affect the growth of organisms in it. The lower the quality of nutrients, the higher is the environmental stress. E.g in <em>Lake Erie</em>, the growth of algae was restricted due to the extensive presence of phosphorus in the water bodies.
Pollution is also a big reason for decrease in the density of populations. E.g Amphibians such as toad, frog are susceptible to pesticides which flow into the water bodies. It reduces their ability to <em>reproduce</em> and inhibits their growth.
When the number of predators in a given area increase, the population of <em>prey decreases</em>. Extensive predation can lead to the extinction of prey species.
The skeleton has been labeled based on the information given.
<h3>What is a skeleton?</h3>
The human skeleton is the body's internal framework. It is made up of approximately 270 bones at birth, which decreases to approximately 206 bones by adulthood after some bones fuse together. The skeleton's bone mass accounts for approximately 14% of total body weight.
Thw body's skeletal system serves as a support structure. It shapes the body, allows movement, produces blood cells, protects organs, and stores minerals. The musculoskeletal system is another name for the skeletal system. The skeletal system also provides support to the body by acting as a framework and attachment.
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Answer:
0.315 hectares
Explanation:
To get the answer, we use the area of a trapezium formula, which is ½ (a+b) h, where a and b are the parallel sides and h is the height.
So ½(90m+50m) 45m
½ × 140 × 45
70 × 45 = 3150m²
10000m²= 1hectare
3150m² = x
3150 ÷ 10000 = 0.315 hectares.
Pros (good):
- Inexpensive
- Can degrade the crudest oils
- Quick and minor waste is water and CO2
Cons (bad)
- Waves can carry bacteria into place they are not needed or wanted
- Germs may harm marie animals by putting excess CO2 in water
- Germs may be harder to exterminate because they are engineered