Arthropods Click on the question mark to change it to a...

Arthropods Click on the question mark to change it to a check for all statements that are TRUE or to a blank box for all statements that are NOT TRUE about arthropods. ? Krill are planktonic shrimp-like crustaceans. ? Arthropods have a tough exoskeleton made of silica. ? Barnacles that live attached to surfaces are deposit feeders. ? The majority of marine arthropods are crustaceans. ? Copepods are tiny crustaceans very commonly found in the plankton.

Transcript

00:01 So we have been given five different statements and we have to find out the true or false statements regarding orthropods.

00:11 So the first statement is krill are planktonic shrimp like crustaceans.

00:18 So this statement is a true statement so we can check it as true.

00:23 Krill look like shrimp.

00:27 These krill are usually smaller and they feed on.

00:32 Planktons other planktons so these organisms are eaten by larger marine animals let's say larger fish so a population of krill can be eaten by a shark so these are smaller planktonic crustaceans so the given statement is true the second statement that the exoskeleton so orthropods organisms of belonging to arthropods have a exoskeleton that is made up of silica.

01:07 This is an incorrect statement because the a athrapods are made up of exoskeleton this part of the statement is correct but this exoskeleton it is not made up of silica it is made up of chitin so this is a false statement so the next statement is regarding burnacles or barnacles that live on the surfaces so barnacles we can see on the boats or on ships, barnacles are attached on the surface.

01:38 These organisms are not deposit feeders but they are filter feeders.

01:43 So in the statement it is given as deposit feeders.

01:46 So deposit feeders are organisms that feed on the bottom layer of the, that are present on the bottom layer of the ocean, that is on the ocean floor and they feed on the deposits.

01:57 So barnacles are not deposit feeders.

01:59 So this is an incorrect statement.

02:03 So we have to leave blank bosom...

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