Aspecies whose introduction does or is likely to cause economic or environmental harm or harm to human health

Invasive species

Explanation:

Invasive species can be described as species which are not present in the natural ecosystem of a particular place. when these species are introduced in a location, they might cause damaging effects to the environment or humans. Invasive species are a serious threat fro many naturally stable communities. An invasive species can be any type of organism that might harm a community. Common examples of the invasive species are the killer algae.  

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

the answer is admiramos

the rule for verbs is whoever you are referring to (in this case 'nosotros'), you need to change the ending of the word.

nosotros - amos

yo - o

tu - as

el, ella, usted - a

ellos, ellas, ustedes - an

(examples: nosotros bailamos (instead of bailar) or yo hablo (instead of habla)