Ques:You are presented with the question "Autotrophs make food from what?" and the following answer choices: - Converting waste. - members of their own species - Chemical energy - photosynthesis - that material's properties - inorganic molecules - Organic compounds - Chlorophyll Now knowing that producers make food from inorganic molecules and autotrophs are referred to as producers, choose the best answer.

Ans:inorganic molecules
-----
Ques:You are presented with the question "What animal would not have its territory covered over by a housing development?" and the following answer choices: - humans - bullfrogs - Frogs - raccoon - pigeons - salmon - opossum - deer Now knowing that building housing developments usually requires replacing animal habitats and for salmon, habitat includes freshwater, estuarine and marine habitat, choose the best answer.

Ans:salmon
-----
Ques:You are presented with the question "What animal can help lakes to form?" and the following answer choices: - mussels - the trout - sea urchins - eukyarotes - the duck - The beaver - amphibians - the otter Now knowing that damming a river can cause a lake to form and beavers build dams, choose the best answer.

Ans:The beaver
-----
Ques:You are presented with the question "Why will an object sink in fluid?" and the following answer choices: - The object drinks the fluid - The fluid is heavier - It weighs more - permineralization - erosion - The object absorbs its energy - a hydraulic system - to move people Now knowing that if an object in a fluid is more dense than that fluid then that object will sink in that fluid because of gravity and weight is the force of gravity on an object, choose the best answer.

Ans:
It weighs more
-----