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algol [13]
3 years ago
5

Identify the eicosanoid.

Biology
1 answer:
VARVARA [1.3K]3 years ago
5 0

Answer:

The eicosanoids are a family of oxygenated derivatives of 20-carbon polyunsaturated fatty acids that includes prostaglandins, thromboxanes, leukotrienes, endocannabinoids, and isoecosanoids.

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Which of the following statements is true about Tiktaalik?
yawa3891 [41]

Tiktaalik is a transitional fossil which shows how fish evolved into amphibians and reptiles. So the correct option is B.

What is Tiktaalik?

Tiktaalik is a direct ancestor of tetrapods or four-legged animals. It is an extinct fish-like animal and it lived on earth 380-385 million years ago (Devonian period).

The word Tiktaalik is derived from the <em>Inuktitut</em> language which loosely translates to large freshwater fish. This animal had characteristics of both fish and tetrapod and is therefore called the link between these two kinds of animals.

The characters resembling fish are gills and scales and the characters resembling tetrapods are rib bones, movable neck and lungs. There are characters that are a mix of both tetrapods and fish. These are bones and joints in limbs but fish-like fins instead of feet or hands.

Read more about Tiktaalik, here

brainly.com/question/10138798

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Which of the following belong to the Cilates?
Salsk061 [2.6K]

Answer:

Paramecium.

Explanation:

Ciliates are group of protozoans organisms that are characterized by special organelles called cilia.

Cilia is used for loccomotion in ciliates and can also be use to move food into the body. The cilia can be use for swimming, crawling, for attachment and sensation. Some ciliates are free living while some are parasitic. They are found in the aquatic habitats both fresh water and ocean.

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3 years ago
What trophic levels do humans occupy on an ecologcal pyramid?
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I believe the answer would be "Top Predators"
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Carbon dioxide is transported in the blood in three ways: (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Source: https://academic.oup.com/bjaed/article/5/6/207/331369

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