1. How many stomachs does a crayfish have? What are they called?

Biology

1 answer:

sladkih [1.3K]2 years ago

4 0

Answer:

It is called "Gastric Mill" They have 3 stomachs

Explanation:

The teeth are part of a system called the “gastric mill.” Through rhythmic movements of these large teeth, of which there are three, their stomachs can actually crush food as a prelude to further digestion.

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Glucose that is not needed immediately for energy is stored in the ____________ as.

Romashka [77]

It is stored as Glycogen in the liver

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3 years ago

2. What biosecurity measures does the hatchery take? Enter your answer

Cloud [144]

Answer:

Provide a closed environment.

Clean the hatch chamber with chemical.

Explanation:

Biosecurity is a measure which is taken in order to protect or prevent the population of existing species from infestation of harmful organisms and chemical substances. The hatchery should provide a closed environment in order to prevent the entry of harmful organism. Cleaning of the chamber where eggs were hatched with chemicals in order reduce the infestation of microorganism.

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Put the items in the correct order. Below is a sequence of events. Place them in the order they should occur, number 1 being the

nikklg [1K]

ANSWER:

The correct order is- Zygote, Blastula, Gastrula, Fetus.

EXPLANATION:

The embryo develops from the zygote which is formed when the gametes fuse in the process of "fertilization".
The zygote undergoes cell division to form blastula which is a "ball of cells".
Gastrula leads to the rearrangement of cells of the blastula into three layers that differentiate into different systems of organ.
The last stage is the fetus which then develops into a baby.