Genetics
What is passed from parents to offspring that determines traits?
a) Muscles b) Bones c) Genes d) Blood
genes
What is the result of sexual reproduction?
a) Identical clones b) No change c) Variation d) One parent involved
c) Variation
. How do animals attract mates?
a) By hiding b) By eating c) By using calls and dances d) By growing fast
c) By using calls and dances
What does a plant do when it senses light?
a) Dies b) Moves away c) Grows toward it d) Turns yellow
c) Grows toward it
. Pollution from factories harms:
a) Land only b) Animals only c) Air, land and water d) Only water
Air, land and water
Where are genes located?
a) Hair b) Skin c) DNA d) Muscles
DNA
Sexual reproduction involves how many parents?
a) One b) Two c) Three d) None
TWO
Why do animals build nests?
a) For food b) For water c) To protect young d) To fly
c) To protect young
. What is the plant's reaction to gravity called?
a) Phototropism b) Hydrotropism c) Gravitropism d) Chemotropism
c) Gravitropism
. Littering on land can cause:
a) Clean soil b) Plant growth c) Harmful effects on animals d) New minerals
c) Harmful effects on animals
What is a pedigree chart used for?
a) Drawing plants b) Tracing family traits c) Making maps d) Showing growth
b) Tracing family traits
Offspring look different from parents due to:
a) Pollution b) Environment only c) Variation in genes d) Nutrition
c) Variation in genes
How do colorful petals help plants?
a) Attract insects for pollination b) Provide food c) Trap animals d) Keep rain away
a) Attract insects for pollination
. A plant growing towards water is called:
a) Positive hydrotropism b) Negative gravitropism c) Neutral tropism d) Adaptation
a) Positive hydrotropism
. Which human action helps the environment?
a) Cutting trees b) Recycling c) Burning plastic d) Littering
b) Recycling
Which of the following is an inherited trait?
a) Language b) Scars c) Eye color d) Favorite food
c) Eye color
Asexual reproduction produces:
a) Unique individuals b) Identical copies c) Siblings d) New species
b) Identical copies
Which two factors affect plant growth?
a) Water and exercise b) Genes and local conditions c) Light and humans d) Food and sleep
b) Genes and local conditions
Why do frogs lay many eggs?
a) Eggs are cheap b) To increase survival chances c) To float d) For food
b) To increase survival chances
. Oil spills affect:
a) Air only b) Water and sea life c) Soil fertility d) Tree roots
b) Water and sea life
Alleles are:
a) Foods b) Gene forms c) Muscles d) Chromosomes
Chromosomes
Which plant part is involved in asexual reproduction?
a) Leaf b) Flower c) Stem d) Seed
b) Flower
To protect nature, we should:
a) Cut all trees b) Throw trash in forests c) Plant trees and recycle d) Use plastic only
) Plant trees and recycle
What is the plant's reaction to THIGMOTROPISM called?
a) LIGHT b) WALL c) GravitY d) Chemical
b) WALL
What is one effect of soil erosion?
a) More crops b) Loss of fertile land c) Clean rivers d) Air pollution
b) Loss of fertile land