Ques:If urea is a waste product of the body that is excreted by the urinary system, then what is a waste product of the body that is excreted by the urinary system? Answer choices: - potash - food - CO 2 - sugar - urea - liquid - H 2 O - sulfur

Ans:urea
-----
Ques:If copper is a chemical element that is essential for body processes, then what is a chemical element that is essential for body processes? Answer choices: - Energy. - water - blood - Energy - sodium - copper - positive - ice

Ans:copper
-----
Ques:If fungi lack chlorophyll, so they cannot make food by photosynthesis as producers can, then what do fungi lack that make them unable to make food as producers can? Answer choices: - scattered light - chlorophyll - Energy. - sunlight - Energy - acetic acid - Chemical energy - energy usage

Ans:chlorophyll
-----
Ques:If mammals are vertebrates, then what are mammals? Answer choices: - dinosaurs - animals - fish - Animal survival - supersonic - vertebrates - invertabrates - four limbs

Ans:
vertebrates
-----