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olchik [2.2K]
3 years ago
7

Which will you hear as the highest pitch? a sound wave with frequency of 10,000 Hz b sound wave with frequency of 30,000 Hz c so

und wave with frequency of 15,0000 Hz d sound wave with frequency of 50 Hz
Biology
1 answer:
inysia [295]3 years ago
7 0

Answer:

A sound wave with 15,000 Hz

Explanation:

Humans can averagely hear up too 20,000 Hz. So around 15,000 would make most sense.

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How is an organism's niche and trophic position related?
inessss [21]

Answer:

The organisms in this trophic level break down all the nutrients in the bodies of plants and animals and return them to the soil to be absorbed and used by plants. ... The second is the ecological niche, which encompasses the particular location occupied by an organism and its functional role in the community.

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3 years ago
Which occurrence most likely led to the other
erica [24]
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3 years ago
What are the similarities and differences between plant, animal, and fungal cells?
nlexa [21]

Answer:

They are eukaryotic cells, they present the three main parts: cell or cytoplasmic membrane, cytoplasm and nucleus defined with chromosomes and nucleolus. The three types of cells have in common the following structures: cell membrane, cytoplasm, nucleus defined with chromosomes and nucleolus, mitochondria, smooth and rough endoplasmic reticulum, ribosomes, Golgi apparatus, cytoskeleton and peroxisomes. But it differs in some. The plant cell has chloroplasts and a cell wall and the animal cell does not.

Explanation:

The animal cell has centrioles, lysosomes. It has no plastids, no cell wall, it has vesicles. They do not have the ability to produce their own food from inorganic components. The plant cell has plastids (chloroplasts), cell walls, large vacuoles. Fungal cells are organisms without chlorophyll, therefore they cannot photosynthesize. The reserve substances of the cytoplasm are not starch granules. As they are not able to synthesize their food, they have to obtain from other living organisms (they feed on other plant and animal residues contributing to decomposition) that is, they are heterotrophic. Fungal cells have a cell wall that is not present in animal cells and but plant cells have a cell wall. They have lysosomes and centrioles that the plant cell lacks but they are in animal cells. Animal cells, with a few exceptions, do not have vacuoles while plant cells do. The three types of cells have present nucleus, membrane, mitochondria, endoplasmic reticulum, Golgi system.

4 0
3 years ago
Compare and contrast intertidal zones and reefs. How are they similar and how are they different?
spayn [35]

Answer:

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The intertidal zone, one of the three zones, of a typical reefs,is a marine shoreline with constant  exposure to air.Hence always above water,unlike Coral reefs.

The continuous fluctuation in tides always change the intertidal zone. Due to constant aeration fro tides, varieties of animals like sea urchins,sea-stars, limpets fished  and diverse phyla of species populated this environment,

8 0
3 years ago
Consider the parts of a polar ecosystem and a desert ecosystem.
soldier1979 [14.2K]

Answer:

One biotic factor includes soil, air(oxygen and carbon dioxide), water.

One biotic factor includes animals and plants.

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Thenks and mark me brainliest :)))

8 0
3 years ago
Read 2 more answers
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