What are two ways in which bacteria are useful

Creating products, such as ethanol and enzymes.

Making drugs, such as antibiotics and vaccines.

Making biogas, such as methane.

Cleaning up oil spills and toxic wastes.

Killing plant pests.

Transferring normal genes to human cells in gene therapy.

Some types of bacteria help you digest food. Others are used to create dairy products and even medicines. There are even some that prevent disease.

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.

most community's take hundreds of years to become stable