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2 years ago

Some species of jellyfish use jet propulsion to get around. True or False

Biology

2 answers:

Anastasy [175]2 years ago

8 0

Answer:

The correct answer is "True".

Explanation:

Some species of jellyfish use a form of jet propulsion to swim and get around the sea. For instance, the jellyfish <em>Polyorchis penicillatus</em> contracts its subumbrellar swimming muscles to gain power, which it uses as mechanical energy to perform a jet cycle while swimming. Some studies in this regard have been performed, measuring even the amount of energy needed in the muscles for the jellyfish to swim.

irina [24]2 years ago

7 0

Answer:

True

Explanation:

Jelly fish belongs to the group of animals known as the coelenterates. They are an invertebrates with no eyes, brain, bones or heart and are made up of about 95% water.

Jelly fish moves through water in two ways:

Swimming by jet propulsion using a structure known as coronal muscles.

By attaching themselves to another objects that moves through water currents.

Hence, the correct answer is 'true'.

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Which of the following is a system of organs that collects oxygen from the external environment and transports it to the bloodst

ehidna [41]

Answer:D

Explanation:

Respiration is the process of taking in oxygen and release of Carbondioxide in the lungs(breathing),the absorption of the oxygen in the alveolar, into the blood stream for distribution to tissues , the combustion of the metabolites(glucose,amino acids, and fatty acids and glycerol)with the inhaled oxygen to give energy as ATPS and water vapour.

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2 years ago

Tim wants to perform an experiment with yeast. He forms a hypothesis in which he predicts that all of the yeast will eventually

Olin [163]

Answer:

answer c

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Fofino [41]

Answer:

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Explanation:

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2 years ago

Describe the role of ATP

just olya [345]

Answer:

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Explanation:

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2 years ago

The stomach,small intestine, esophagus or liver secretes special enzymes that help the stomach digest fats.

scZoUnD [109]

Explanation:

<u>The stomach </u>

Digestion describes the intake, chemical and physical breakdown, absorption of nutrients and excretion of food with the use of enzymes. The stomach secretes the enzyme, gastric lipase to digest fats.

Further Explanation:

Food is chemically and mechanically broken down into smaller particles. In the stomach the enzyme gastric lipase acts on lipids, breaking them up into their components. Phospholipids, bile acids, bilirubin, and cholesterol are combined into bile in the liver, which when secreted into the duodenum of the small intestine; this comes from its storage site, the gall bladder, and functions as an emulsifier or as a detergent.

These hold the fats and water together and increase the surface area of lipids, which can be further digested by enzymes so the nutrients are further broken down for absorption into the bloodstream.