jellyfish are classified as stinging-cell animals because they have a
a. hollow body
b. segmented body
c. shell
d. round body
is a planarian is a parasite?
yes it did .. thank you (:
after some research, they definetly don't have segmented bodies, i don't think its shell either, and hollow doenst sound correct, so my answer is round bodies
might need to clarify
planarians are not parasitic
hope this helps!
http://en.wikipedia.org/wiki/Planarian
Hallow body
To answer the first question, "jellyfish are classified as stinging-cell animals because they have a," we can eliminate options based on knowledge about jellyfish. Jellyfish have a soft and gelatinous body, so options such as a shell (option c) and a segmented body (option b) can be eliminated. This leaves us with options a and d. Now, we need to determine whether jellyfish have a hollow body (option a) or a round body (option d).
To find the answer, we can conduct a simple search using a reliable source such as an encyclopedia, scientific website, or marine biology resource. By searching for "jellyfish anatomy" or "jellyfish body structure," we can find information about their physical characteristics. From the search results, we can learn that jellyfish have a sac-like or bell-shaped body, which would classify them as having a hollow body. Therefore, the correct answer is option a.
Regarding the second question, "Is a planarian a parasite?" We can approach this question by first understanding what a planarian is. Planarians are flatworms that belong to the class Turbellaria. Some species of planarians are known to be parasites, while others are free-living.
To determine if a planarian is a parasite, we can again search for information using reputable sources such as scientific journals, biology textbooks, or reliable websites. By searching for "planarian parasite" or "parasitic planarians," we can find information about their different species and behaviors.
The search results will provide information about specific planarian species that are recognized as parasites, such as the blood fluke Schistosoma, which is a significant human parasite. However, not all planarians are parasitic. Many planarians are free-living and do not rely on a host organism for survival.
Therefore, the answer to the question "Is a planarian a parasite?" is that it depends on the specific species of planarian being referred to. Some planarians are parasites, while others are not.