1) The penguin's feet can be warm because a) The penguin's feet have feathers b) The blood vessels weave around each other 2) The penguin's body can be warm because a) It has thick fur b) It has thick dense feathers  c) The blood vessels weave around each other 

Classifica

Stile di visualizzazione

Opzioni

Cambia modello

Ripristinare il titolo salvato automaticamente: ?