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Biology

what is an adaptation ?

a feature of an organism that helps it survive in its environment

what adaptations does a predator have ?

sharp teeth

sharp claws

eyes at the front of its head

what adaptations does prey have ?

camoflage

what do adaptations do ?

help organisms compete for what they need

what do animals compete for ?

food

water

shelter

mates

what does endangered mean ?

few left of a species

how do organisms adapt to cope with seasons ?

hibernate

lose leaves

move

grow thick fur

change colour

what adaptations do polar bears have ?

white fur

thick coat

what does extinct mean ?

none of a species left

what is variation ?

the differences between organisms of the same species

where is dna found in a cell ?

the nucleus

what is a species ?

a group of organisms with similarities that can breed together

what does a plant need to grow ?

water

light

carbon dioxide

in what cell is dna stored ?

the nucleus

what happens in fertilization ?

the sperm and egg join

why do children look like their parents ?

they have dna inherited from them

what is the function of dna ?

to code for characteristics

if two terriers have a puppy togther, what will it look like

it will look like a terrier

what is the name of genetic info ?

dna contains genetic info

how genetic info passed down ?

half of the babies dna comes from the mother , another from the father

how many pairs of chromosomes do babies have from each parent ?

23

how many chromosomes do we have altogther ?

46

what is dna ?

chemical codes for out characteristics

what is a gene ?

a section of dna that codes 1 characteristic

what is a chromosome ?

a large section of dna holding many genes

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