Q: You are presented with the question "Soil receptive to water absorption has a positive impact on what aspect of the plant?" and the following answer choices: - support - growth - stem thickness - root growth - energy - dry roots - Energy. - bud amount Now knowing that the looseness of soil has a positive impact on a plant 's roots' growth in that soil and most mulches help to keep soil surfaces loose and receptive to water absorption, choose the best answer.
A: root growth

Q: You are presented with the question "what does threatening behavior cause in animals?" and the following answer choices: - negative - stress - dog - knife - disease - Movement - influenza - h2o Now knowing that threatening behavior causes a fight-or-flight response in animals and true False Fight or flight are extreme responses to stress, choose the best answer.
A: stress

Q: You are presented with the question "What can cause light to be broken into many pieces?" and the following answer choices: - rain and coal - Chemical energy - Physical weathering - heat energy - energy of moving objects - snow and wind - sunlight and rain - ice and leaves Now knowing that sunlight and rain can cause a rainbow and and light broken into many pieces is a rainbow, choose the best answer.
A: sunlight and rain

Q: You are presented with the question "What creates new genetic variation in the gene pool?" and the following answer choices: - The bending of a ray of light - passenger pigeons - peachleaf willow - Warm air moving into cold air - random changes in genes - that material's properties - a tree falling - By wind and rain Now knowing that mutation creates new genetic variation in a gene pool and mutations Mutations are caused by random changes in genes, choose the best answer.
A: random changes in genes