Fungi-like protists

Question 1

4 ways humans cause habitat loss

Answer 1

deforestation due to logging, climate change, excessive grazing, over fishing, & toxic pollution

Question 2

Fungus-like protists

Answer 2

1. Heterotrophs that absorb nutrients from dead or decaying organic matter
2. They can live alone but often live in large colonies
3. They have cell walls made of cellulose but aren’t true fungi b/c they lack chitin in their cells walls
4. They reproduce by forming spores
5. They are able to move at some point in their lives

Question 3

What do fungus-like protists do?

Answer 3

1. They are important recyclers of organic matter - they help things rot
2. They break down dead organisms by releasing digestive enzymes into them, which then release materials that are useful to other living organisms into the surrounding environment
3. Dark rich topsoil is the result of their decomposition activity

Question 4

What are the 2 types of fungus-like protists?

Answer 4

oomycota & slime molds

Question 5

Oomycota

Answer 5

1. Include: water molds, white rust, & downy mildews

Question 6

Water molds

Answer 6

Are decomposers that grow as cottony masses on dead algae & animals. (they look like tiny threads w/ a white fuzzy covering)

Question 7

White rust & downy mildews

Answer 7

are close relatives of water molds but usually live on land as parasites of plants. (eg. Irish potato famine)

Question 8

Slime molds

Answer 8

occurs all over the world & with over 900 species