Ques: You are presented with the question "How does an echidna reproduce?" and the following answer choices: - during the day - it can be seen - gastropod shells - Laying eggs - litter - aerobic capacity - mechanical - electrically Now knowing that monotremes are mammals that reproduce by laying eggs and echidnas are monotremes, or egg laying mammals, choose the best answer.
Ans: Laying eggs

Ques: You are presented with the question "Male dogs use what in their urine to mark their territory?" and the following answer choices: - hydrocarbons - volatile substances - kinetic energy - an area swollen with pus - Chemical energy - competing for resources - add a solute - Positive charges Now knowing that male dogs use pheromones in urine to mark their territory and generally, pheromones are volatile substances, choose the best answer.
Ans: volatile substances

Ques: You are presented with the question "Some producers use what physical feature to use energy and inorganic molecules?" and the following answer choices: - leaves - sunlight - solar energy - sun - resevoir - chemicals - mitosis - trees Now knowing that producers use energy and inorganic molecules to make food and leaves make food for the plant, choose the best answer.
Ans: leaves

Ques: You are presented with the question "When does steel expand?" and the following answer choices: - matter vibrating - when it loses heat - It gets heated up - flow of electrons - when it transfers heat away - recovery time from fatigue - when it conducts heat - when it cools down Now knowing that when metal conducts heat , that metal expands and steel is a solution of metals, choose the best answer.
Ans:
when it conducts heat