PL HEL! What is an example of an event that can compromise an ecosystem?
1.seasonal climate change
2.seasonal dry period
3.d eveloping land around cities
4.high temperatures

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Monomers are the building blocks of larger molecules, called polymers. for example, proteins are composed of chains of amino acids that are linked together. cellulose is a polymer that makes up plant cell walls. cellulose is made from a chain of c6h10o5 molecules. which monomers are most likely used to produce cellulose? why?

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.