00:03
Hello.
00:04
So problem one of chapter 32, the question that asks us to identify which of the following options is a characteristic that is unique to animals.
00:13
So before we jump right into the answer choices, let's take a closer look at the question itself.
00:19
The key word in this whole problem is unique.
00:27
So in other words, what this problem is asking is, which of the following traits, gasulation, multicellularity, sexual reproduction, and d, flagellative sperm, is found only in animals and no other types of organisms.
00:41
So the easiest way to solve such a problem is through process of elimination.
00:46
P -o -e.
00:50
So what we're going to do is we're going to go through the answer choices and eliminate what's not correct.
00:56
So the first option choice that jumps out at me as being incorrect is multicellularity.
01:05
Although animals are in fact multicellular organisms, so are, as we see in this diagram over here, plants, fungi, and many types of algae.
01:16
Therefore, multicellularity is not unique to animals.
01:23
Yeah, animals.
01:25
Moving down, we have sexual reproduction.
01:28
Just like with multicellularity, sexual reproduction is a characteristic of animals.
01:32
But as you can see in the image over here, sexual reproduction is something that happened in many types of organisms...