Touching a Jellyfish Can Be a Very Painful Experience Whereas

question 21

Multiple Choice

Touching a jellyfish can be a very painful experience whereas touching a comb jelly is not painful.Why is there a difference?

• A)Nematocysts in ctenophores lack venom.
• B)Ctenophores have very reduced nematocysts that cannot penetrate human skin.
• C)Ctenphores do not possess nematocysts.
• D)Ctenophores only use nematocycts for feeding,not for defense.

Learn about the role of hormones in plant growth and development.

Identify the light that is most effective in triggering seed germination.

Comprehend the process of photomorphogenesis and its significance.

Explain the concept of transport in plants, focusing on hormone transport.