Prosze mam na poniedzałek zadanie 3 str 104 odpowiedz na pytania

Do czego pijawkom są potrzebne przyssawki?

Dlaczego środkowa i tylna para odnóży nartnika jest bardzo wydłużony?

Dlaczego muszla małży jest ciężka i bocznie spłaszczona?

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

thinking it would be physical characteristics

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.