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leonid [27]
3 years ago
14

A gastrovascular cavity is a digestive tract with two openings-a mouth and an anus.

Biology
2 answers:
dezoksy [38]3 years ago
6 0

the gastrovascular system is also known as the coelenteron, and is commonly known as a "blind gut" or "blind sac", since food enters and waste exits through the same orifice.

so True

german3 years ago
4 0

False. I usually use quizlet. so..yeah.

https://quizlet.com/140575487/biology-final-invertebrate-review-flash-cards/

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Why can only sperm fertilize an egg?
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Answer:

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Explanation:

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Indicate whether each of the following occurs mainly in G1 phase (G), S phase (S), or G2 phase (H) of the cell cycle. Your answe
Ronch [10]

Answer:

Correct choice should be:

"SGSG"

Explanation:

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G1 phase preceeds replication or S phase and G1 phase licences DNA replication.

During other phases of cell cycle, ORC complex masks origin of replication. ORC phosphorylation takes place at S phase, which removes this omplex and unmasks origin of repication site so that replication machinery can bind to it.

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ORC phosphorylation: S phase

Licensing of replication origins : G phase (actually G1)

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SGSG

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