CKLA Human Body Pausing Point - Second Grade

The smallest units of human life are called ______.

• cells

• tissues

• organs

• systems

Tags

NGSS.MS-LS1-1

Tissues are made up of similar _________.

• cells

• tissues

• organs

• systems

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-1

Organs are made up of __________.

• cells

• tissues

• organs

• systems

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-1

Your heart is one of your most important _______.

• cells

• tissues

• organs

• systems

The tissue that forms protective barriers is called _______ tissue.

• connective

• muscle

• epithelial

• nervous

Blood, bone, and fat are all _____ tissues.

• connective

• muscle

• epithelial

• nervous

Body systems are made up of different _______.

• cells

• tissues

• organs

• systems

Tags

NGSS.MS-LS1-3

The digestive and excretory _____ process your food and waste.

• cells

• tissues

• organs

• systems

Tags

NGSS.MS-LS1-7

Every organ in the body has a _______ or a special job.

• organ

• function

• cell

• tissue.

Tags

NGSS.MS-LS1-3

Why is Anton van Leeuwenhoek famous?

• He invented the microscope.

• He wrote a book called Micrographia.

• He was the first person to describe bacteria.

• He made cloth from tiny animal hairs.