Cometsarestillregardedwithawebysomepeople.
A、wonderBlue－greenalgaegrowabundantlyinsaltmarshes.
Foodmustbemoistinordertohaveataste.
Thefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.
Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.
Batsfly,ratherthanglide,andthusaretheonlymammalscapableoftrueflight.
