Ch 3 The Cell and life 4th Grade pages 70/71 review

Name the characteristics of life-forms.

Read the following story. Then say which characteristic of life-forms are they talking about.

Ruby, our pet dog, has 6 puppies that look like her.

• They grow

• They reproduce

• They obtain energy

Which life-form characteristics are they talking about?

At first, they were tiny and almost couldn't walk, but now they run and play all over the house, they drive my parents crazy.

• They grow

• They reproduce

• They move

Which life-form characteristics are they talking about?

But they still need to drink thier mother's milk.

• They obtain and use energy

• They grow

• They excrete

Which life-form characteristics are they talking about?

They get excited when they see me because I always play with them; throw a ball for them to chase.

• They reproduce

• They move

• They excrete

Which life-form characteristics are they talking about?

My dad spreads newpapers all over the floor for them to excrete on.

• They grow

• They die

• They excrete

Characteristic of a prokaryotic or eukaryiotic :

They contain a variety of organelles

• prokaryotic

• eukaryotic

Characteristic of a prokaryotic or eukaryiotic:

They have very few organelles

• eukaryotic

• prokaryotic

They have a nucleus

• prokaryotic

• eukaryotic

They do NOT have a nucleus

• eukaryotic

• prokaryotic