Answer:
To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating. ... DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases.
Explanation:
B. <span>A population of wolves was introduced into Yellowstone National Park
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An ecosystem is quite smaller than a biome and exists within a biome.
A biome refers to a large habitat ocupied by assorted fauna and flora. Biomes are classified based on abiotic conditions such as temperature, soil types, rainfall etc. An ecosystem is a self supporting unit in which materials and energy are exchanged within the system.
The difference between a biome and an ecosystem is that a biome is a collection of different ecosystems that are found within a habitat while an ecosystem is composed of living and nonliving factors. An ecosystem is quite smaller than a biome and exists within a biome.
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Ocean floor is the rocks from which source would most likely contain the
highest percentage of iron-bearing minerals.
<h3>Iron formation in Ocean floor</h3>
Iron are formed as thin banded forms in the ocean floor as a result of the
formation of oxygen through organisms present in the ocean such as
cyanobacteria. The oxygen formed result in the formation of these iron ores.
The iron-bearing minerals include the following:
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The cell wall in the animal plant cells are absent from the cell and the and the plant cell walls are present.the shape of the animal cell is round which is an fixed shape and the plant cell is rectangle which is and irregular shape.And animal cells don't have chloroplasts and <span>Plant cells have chloroplasts because they make their own food.</span>
