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MaRussiya [10]
3 years ago
14

Phytoplankton are plantlike microorganisms that live on the water's surface in aquatic biomes. As photosynthesis organisms, phyt

oplanton produce much of Earth's oxygen as a byproduct. Explain the ecological impact of a decline in phytoplankton by providing examples from the organism through the ecosystem levels of organism.
Biology
1 answer:
defon3 years ago
5 0
Phytoplankton serves as food for virtually all the organisms living in an aquatic environment. It is a primary food producer and serves as the foundation of aquatic food web. If there is a decline in the amount of phytoplankton, the organisms which feed directly on the plant may reduce significantly as a result of dire competition for food, this in turn will affect the organisms which feed on the dying out organisms and the trend will move in a similar way until it affect all the organisms living in that particular aquatic habitat. 
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True vertebrates have a true head that develops from a neural crest of cells and hard structures surrounding the notochord.
Bond [772]

Yes. True vertebrates have a true head that develops from a neural crest of cells and hard structures surrounding the notochord.

The neural crest, which forms early in the development process in vertebrate embryos, is a fold on the neural plate where the neural and epidermal ectoderms converge. As an embryo grows, the neural crest produces neural crest cells (NCCs), which can differentiate into a variety of different cell types and contribute to tissues and organs.

The notochord is a temporary structure that plays a crucial role in higher animals. It secretes substances that communicate with all neighbouring tissues, telling them where they are and what will happen to them.

Therefore, True vertebrates have a true head that develops from a neural crest of cells and hard structures surrounding the notochord.

Learn more about notochord here:

brainly.com/question/11871768

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7 0
2 years ago
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ddd [48]

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4 years ago
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Illusion [34]

Explanation:

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3 years ago
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