SB9f Parasitism and Mutualism

Question 1

parasitism?

Answer 1

close relationship where one organism, the parasite, lives on or inside another organism, the host, causing it harm

Question 2

mutualism?

Answer 2

relationship between two types of organisms that benefits both

Question 3

example of a parasitic relationship? 2

Answer 3

head lice
~sharp mouthparts to suck blood
~claws to grip hair
~gluey eggs to stick to scalp
tapeworms
~suckers that attach to the intestine wall
~has both male and female sex organs
~flat body to have large surface area to maximise nutrient absorption

Question 4

example of a mutualistic relationship? 2

Answer 4

flowers and insects
~insect receives food
~flower is pollenated
coral and alga
~coral protects alga
~alga provides coral with sugars