Asked by justin

can you answer these questions

A scientist is studying an organism and has classified it as an animal.

Which statement must be true about the organism?

It is multicellular.
It displays radial symmetry.
It has a backbone.
It contains cells without nuclei.

Which two characteristics do all animals have?

They are symmetrical and heterotrophic.
They are heterotrophs and have a backbone.
Their cells have a nucleus and membrane-bound organelles.
They have a backbone, and their cells have membrane-bound organelles.

Clams and oysters are examples of invertebrates.

Which structure in these animals helps protect their internal body parts?

shell
backbone
gills
muscles

Which three steps describe how an animal obtains and uses energy for growth?

First, an animal eats another organism. Then, food is built into larger molecules. Next, the animal’s cells use molecules to make new cells.
First, food is built into larger molecules. Then, the animal eats another organism. Next, the animal’s cells use molecules to make new cells.
First, an animal eats another organism. Then, food is broken down into smaller molecules. Next, the animal’s cells use molecules to make new cells.
First, food is broken down into smaller molecules. Then, the animal eats another organism. Next, the animal’s cells use molecules to make new cells.

What is a function of the backbone in animals?

It protects against predators.
It regulates blood glucose.
It surrounds the spinal cord.
It limits movement.

All Answers 1

Answered by GPT-5 mini AI
1) It is multicellular.
- Animals are multicellular eukaryotes.

2) Their cells have a nucleus and membrane-bound organelles.
- All animals are eukaryotic (have nuclei and organelles).

3) shell
- The shell protects the internal body parts of clams and oysters.

4) First, an animal eats another organism. Then, food is broken down into smaller molecules. Next, the animal’s cells use molecules to make new cells.
- Eat → digest (breakdown) → use building blocks for growth.

5) It surrounds the spinal cord.
- The backbone (vertebral column) protects the spinal cord.