If reptiles have complete digestive systems and a closed circulatory system, then what have complete digestive systems? Answer choices: - a fish - saliva - mammals - insects - protist - barnacles - reptiles - rabbit
reptiles

(Question)
If when wildfowl's territory is destroyed, they must move to another area, then when wildfowl's territory is destroyed, they must do what in order to survive? Answer choices: - wait - kill - evolve - live - mating - mate faster - Move - die
(Answer)
Move

Ques: If heating a filament is helpful for seeing in the dark, then what is helpful for seeing in the dark? Answer choices: - an electron microscope - an electron lens - microscope - closing the blinds - blackouts - closing your eyes - focusing a lens - heating a filament
Ans: heating a filament

(Q).
If proteins fight antigens, then what do proteins fight? Answer choices: - heat - calories - carbohydrates - illness - parasites - fat - resistance - antigens
(A).
antigens

Ques:If amammal needs to attract a mate to give birth to live young, then what needs to attract a mate in order to give birth to live young? Answer choices: - humans - Jellyfish - mammals - Frogs - birds - hormones - insects - reptiles

Ans:mammals

Ques:If machines operated by windpower convert wind energy into electricity, then what converts wind energy into electricity? Answer choices: - clouds - mechanical waves - windpower operated machines - Movement of an air mass - solar panels - Warm air moving into cold air - batteries - tectonic plates being pushed together

Ans:
windpower operated machines