<span>Biomes are defined as the world's major communities, classified according to the predominant vegetation and characterized by adaptations of organisms to that particular environment.</span>
the gastrovascular system is also known as the coelenteron, and is commonly known as a "blind gut" or "blind sac", since food enters and waste exits through the same orifice.
so True
Answer:
D
Explanation:
A: Neutrally charged atoms have the same number of protons and electrons.
B: Negatively charged atoms have more electrons than protons. These are also called anions.
C: ironically charged is a molecule that has a charge so a cation or an anion. This option isn't correct becuase it's not specific enough for the question. An ion can be positively charged (cation) or negatively charged (anion).
A lot of abiotic factors are necessary to the ecosystem, such as temperature, water, sunlight ect. ect.
Without these factors, certain animal species would not be able to prosper, and once adapted living organisms, would fail to get needed resources.
There can also be a negative affect.
Abiotic factors directly affect how organisms grow and survive.
Hope it helps :)
The answer is <span>c. One that is most easily affected by changes in water quality.
An indicator species is a biological species whose presence or absence and even abundance can indicate specific environmental conditions. For example, there are some species (plant, fish, invertebrates,...) that can live only in an extremely clean river. But, if that clean river gets polluted by human activity, the river will not be any long extremely clean, and sensitive species will not survive and will disappear from the river. Its absence will indicate that river quality is threatened.</span>
