8th grade unit 9 review

Organize these options into the right categories

Groups:

(a) Cell membrane

,

(b) Cell Wall

,

(c) Nucleus

,

(d) Ribosomes

• Gives plants structure

• found in plant cells

• tough and rigid

• contains DNA
  

• responsible for cell reproduction

• regulates what enters and exits

• protects cell

• makes protein molecules

Organize these options into the right categories

Groups:

(a) cytoplasm

,

(b) Mitochondria

,

(c) Chloroplasts

,

(d) Vacuole

• jelly-like fluid

• converts energy

• photosynthesis

• storage area

• plants wilt if empty

• powerhouse of cell

• fills up with water

• 80% water

• has chlorophyll

Label the cells

b

c

d

e

a

Ribosome

Nucleus

Chloroplasts

cytoplasm

Vacuole

Organize these options into the right categories

Groups:

(a) Inherited

,

(b) Acquired

• changes in life

• developed from experience

• scar

• learn a language

• height

• stays consistent in life

• play instrument

• hair types

• passed down from parents

• eye color

what is natural selection?

• stronger individuals have better change to reproduce to pass their genes

• natural picks who lives or dies

• humans decide which individuals to cross

• plant reproduction

What are adaptations?

• Changes in structures and habits that improves chance of survival

• Similarities in structures that help animals survive

• Changes in how an animal looks

• Changes in how a plant looks

Organize these options into the right categories for types of adaptations

Groups:

(a) Structural

,

(b) Behavior

,

(c) Physiological

• beak shape

• migration

• regulate body temp

• mouth structures

• fever/vomit

• panting

• pupil dilation

• types of stems

• building webs

• reproductive structures

• sweating

• appendages

• dormancy

• types of leaves

• root length

• color

• hibernation

• building nests

• tropisms

• mating rituals

Which are types of defense mechanisms?

• Fight or Flight

  Puffer fish puffs up

  Squid release ink

• Hibernation

  Mating ritual

  Migration

• Dormancy

  Tropisms

  Pupil Dilation

• Panting

  Pores

  Shedding

The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment? (a)  

• Dark moth
• Light moth
• Both will be equally successful
• Neither will be successful

What does it mean if an animal will go through fight or flight?

• They will either fight or flee to survive

• They will have to fight and if they lose they have to leave

• They will fight if they have a weapon and flee if no weapon

• They will need to use strategy to win the fight