Answer:
C .
Explanation:
They perform a valuable service as Earth's cleanup crew. Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. Imagine what the world would look like! More importantly, decomposers make vital nutrients available to an ecosystem's primary producers—usually plants and algae.
Answer:
Some factors that may cause a decrease in population size:
- a high mortality rate due to an infectious disease
- a low birth rate
- a high mortality rate due to interspecific competence
- a high emigration rate
Explanation:
In biology, population size (N) refers to the total number of individuals in a given population. The four main factors that affect population size are birthrate (natality), death rate, immigration rate (i.e., the number of individuals of a given species that move into a population), and emigration rate (i.e., the number of individuals of a given species that move out of a population). Both birthrate and immigration are known to increase N, while death rate and emigration are rates known to decrease this value.
Answer: The species richness is how much species there are in the area. The species evenness is who equal the relative number of species are.
EXPLANATION:
If you have only a few species in an habitats the species richness will be low and if there are a lot of species richness will be high.
But independently of the richness, the evenness is comparing the number of individuals between species. If there are a lot of individuals in a few species and just a little number of individuals in the other species, the evenness will be low.
Hope this helps! C:
P-waves
Explanation:
P-waves are compressive longitudinal waves that are capable of passing through the liquid outer core.
- P-waves are also called primary waves.
- They are seismic waves that can pass through any medium
- They usually arrive at a seismic station first before the s-waves.
- P-waves have the highest velocity of all seismic waves.
- Together with the s-waves they are called body waves.
- P-waves moves parallel to the source and forms series of rarefactions and compressions
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