Biology
Reproduction in Organisms Solutions
7...
E - Which evidence best supports the claim that jellyfish reproduce?
1. Jellyfish can make more jellyfish to continue their species. This is done with female jellyfish
making eggs and then releasing the eggs when mature, at the same time male jellyfish will
fertilize the eggs floating by.
2. Jellyfish babies are called "planulae". Soon the free-floating planulae will sink to the bottom of
the ocean and attach on a hard surface, like a rock. They will develop tentacles and become a
polyp and then soon a medusa, which is an adult jellyfish.
3. Jellyfish use their tentacles to obtain their food. If something swims by, it could get caught by
the stinging cells on jellyfish. The jellyfish will then bring their food up to their mouths to ingest
Why is your chosen evidence the best evidence for reproduction as a characteristic of life:
R - Which reasoning supports the claim that jellyfish are living?
1. Jellyfish are alive because the evidence supports the claim.
2. The reason why jellyfish are alive is because they have all of the characteristics of life and to
be considered living, organisms must have all characteristics.
3. The jellyfish eating is the jellyfish obtaining and using energy which is a characteristic of life
and if a thing has at least one characteristic of life, it must be living.
