osteocyte - cell

neuron - cell

skin - organ

brain - organ

gene - organelle

selection

competition

mutation.

mistake.

adaptation.

False because some prokaryotes are multicellular.

True because all eukaryotes are multicellular.

True because prokaryotes are the simplest cell form.

False because all single-celled organisms are prokaryotes.

False because some eukaryotes, including protista, are single-celled.

class

order

domain

kingdom

family

2

4

5

1

3

Bufo marinus

amphibian

Bufo

cane toad

marinus

As many as 400 species per day are lost due to human activities.

Introduction of non-native species to an area can increase the rate of extinction.

Extinction is the death of a species or a larger taxonomic group.

All extinctions are caused by human activities such as habitat destruction.

Extinction of different species can impact humans.

The impact of human activities on biodiversity loss is one of the most significant bioethical issues that we face today.

Biodiversity is defined as variation in life on Earth.

Beetles have the highest biodiversity of all animals because there are more species of beetle than any other animal.

The biodiversity that we have on Earth is the result of billions of years of evolution.

As extinction rates increase, biodiversity increases.

It gives them traits that better match their environment.

It gives them more traits.

It gives them the perfect traits.

It gives them fewer traits.

It gives them only the right traits.

True

False