Brian is at the beach and sees a crab and a seashell. He compares the two and creates a chart. Which comparison shows why the crab is a living thing and the seashell is not?(1 point)
Responses
The seashell is on the sand, but the crab is near the water.
The crab needs to find food, but the seashell does not.
The seashell has seaweed on it, but the crab does not.
The crab is brown, but the seashell is white.
The comparison that shows why the crab is a living thing and the seashell is not is: The crab needs to find food, but the seashell does not. This is because the crab is a living organism that requires energy and nutrients to survive, which it obtains by finding and consuming food. In contrast, the seashell is an inanimate object that does not require food or energy to sustain itself.
To determine why the crab is a living thing and the seashell is not, we need to consider the characteristics and behaviors that distinguish living organisms from non-living objects.
One key characteristic of living things is the need for essential processes such as obtaining food, growing, and reproducing. Based on this understanding, we can evaluate the comparisons provided and identify the correct answer.
Option 1: The seashell is on the sand, but the crab is near the water.
This comparison does not address the characteristics of living things and does not provide any indication of why the crab is alive and the seashell is not. So, it is not the correct answer.
Option 2: The crab needs to find food, but the seashell does not.
This comparison highlights a key difference between the crab and the seashell. The fact that the crab needs to search for food suggests that it is a living organism, as living things require nutrients for energy and survival. In contrast, the seashell does not need to find food as it does not possess the ability to consume or digest nutrients. Therefore, this comparison accurately explains the difference in terms of the essential process of obtaining food, making it the correct answer.
Option 3: The seashell has seaweed on it, but the crab does not.
This comparison does not provide any relevant information regarding why the crab is alive and the seashell is not. Both the presence or absence of seaweed on an object is not indicative of its living status. Therefore, this option is incorrect.
Option 4: The crab is brown, but the seashell is white.
This comparison focuses on the color difference between the crab and seashell and does not provide any insight into the living or non-living nature of the organisms. The color variation between the two objects is not relevant for determining living status. Therefore, this option is also incorrect.
In conclusion, the comparison that correctly demonstrates why the crab is a living thing and the seashell is not is option 2: "The crab needs to find food, but the seashell does not.".
The correct response is:
The crab needs to find food, but the seashell does not.