This is just a suggestion but consider comparing/contrasting a dog, cat, horse, mouse, snake, amoeba, fish and a human for what should provide more than twenty specific adaptations. Then consider why each animal is built that way.
In reality there are multiple adaptations associated with a single characteristic.
Some General Categories (some more specific than others as I am winging it)
teeth (grinding, shearing, hollow....none)
scales (no scales...)
bones (cartilage, no cartilage, entirely cartilage...
hair (hollow, undercoat, long, short...)
legs (no legs, long, short, jointed, 1 toe, 2 toes...)
camouflage (spots, stripes, agouti, dilute...)
gills/lungs
ability to stand upright
hands (opposable thumbs...)
vocal cords
whiskers
beaks
eyes
tails (no tails)
claws (retractable, non retractable, short long, sharp dull)
unicelluar/multicelluar
locomotion (cilia, flagella, water jet, current,
fat as insulation (blubber, fat...oil)
hibernation, estivation, brumation
multiple organ systems
Oh...and a brain...
20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 = 400.
20 of 20 = 20 x 20 = 400 20% of 20 = 0.2 x 20 = 4
"20 more than 20" means that you are adding 20 by 20. Then: 20 + 20 = 40 So 40 is 20 more than 20 because 40 - 20 = 20!
The LCM of 20 and 20 is 20.
20 + + 20 + 20 = 60
A 20 x 20 room will have a perimeter of 20 + 20 + 20 + 20 = 80.
if you want the whole number, multiply 20 by 7. 20+20+20+20+20+20+20=140
There are 20 questions.
There is only one number that equals 20, and that is 20.
About 20 kilometres.About 20 kilometres.About 20 kilometres.About 20 kilometres.About 20 kilometres.About 20 kilometres.About 20 kilometres.About 20 kilometres.About 20 kilometres.About 20 kilometres.About 20 kilometres.
20 x 7 = 20 + 20 + 20 + 20 + 20 + 20 + 20 = 140 The answer is 140.
4 is 20 percent of 20. 20 percent is equal to .20, so .20 x 20 = 4