Practice 1: Fill in the blank
The immune system consists of two main parts or system One system works 24/7 and protects your
regardless of what type of microorganismis encountered. What system is this ?

one the blank: body

And is the innate immune system

Explanation:

There are 2 system, the innate and the adaptive, the innate provides a general defense against harmful germs and substances, and the adaptive creates antibodies to fight that germs.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

wegner's theory did not explain how the continents could move

explanation: