Lesson 3 Bio

How many phyla are in the kingdom Protista?

9 total, 5 plantlike 4 animallike

Define phytoplankton and describe its effect on the environment.

Found near the surface of the water and can photosynthesize. They attribute to 70% of the worlds oxygen and animals rely on them as food

What are the pros and cons of the euglenophytes' ability to digest organic material?

Pro = decomposer, eats waste and sewage Con = can release harmful toxin or cleanup problem when they die

Difference between sexual and asexual?

Sexual is made from sperm and egg, asexual is made by splitting

What does it mean by 'imperfect' fungi?

Sexual reproduction stages have not been observed

Name two characteristics of protists

Unicellular and Procryotic

Describe amebic dysentery

disease caused by protist, affects digestive system, eats hosts food & attacks lining of wall, can cause death

Describe pseudopods.

false feet, finger like projection, they appear on amebas

Describe the endosymbiont hypothesis

hypothesis that eukaryotic cells came about by one cell living in side another cell in a symbiotic relationship.

Effects of potato blight 1845

more than a million people starved to death and mass immigration to avoid starvation

What are the two differences between cilia and flagella?

number, cilia occur in larger numbers length, cilia are shorter

How many species does the protista kingdom include?

over 100,000

What is the relationship between termites and protists?

protists living in the digestive system of the termite are responsible for breaking down the wood.

Define colonial Protists..

protists that live in groups and share the benefits of the group

what does Pyrro in Pyrrophyta mean?

refers to fire (glowing)

what is a parasitic relationship?

relationship that is harmful to one but helpful to the other

What is unique about the Pyrrophyta phylum?

they have the ability to glow

Define symbiosis

when two organisms benefit from one another