Question

a bird species known as the cattle egret is often found near farms in wet areas. the bird waits, sometimes even perched on a cow’s back, until the cow kicks up a frog or fish while it walks. then, the bird strikes and eats the exposed prey. this is an example of what kind of feeding relationship?
a) mutualistic
b) parasitic
c) detritus
d) herbivorous
question 16 (5 points)
listen
which of the following is not a defining characteristic of plants?
a) plants are prokaryotic
b) plants are eukaryotic

Explanation:

First Question (Feeding Relationship of Cattle Egret)

• Mutualistic relationships involve both species benefiting. The cattle egret gets food (exposed prey) from the cow's movement, and the cow is not harmed (may even be unaffected or have no negative impact; the egret's presence doesn't harm the cow).
• Parasitic relationships involve one species harming another (the host) for its benefit, which is not the case here.
• Detritus feeding involves consuming dead organic matter, and the egret is eating live prey exposed by the cow, so C is incorrect.
• Herbivorous means eating plants, but the egret eats frogs/fish (animals), so D is incorrect.

Second Question (Defining Characteristic of Plants)

• Plants are eukaryotic organisms, meaning their cells have a nucleus and other membrane - bound organelles.
• Prokaryotic organisms (like bacteria) lack a nucleus and membrane - bound organelles. So the statement that plants are prokaryotic is not a defining characteristic of plants, while being eukaryotic is a defining characteristic.

Answer:

A) Mutualistic