Amachine a-makes work easier to do b- changes the size of force needed c-can change the direction or distance of the force d- all of the above

What does resonance result in? quieter sounds frequency amplitude louder sounds

Are humans interfering with or a part of evolution happening today? find examples of evolution seen in recent history that could be caused by human activity.

Question 14 (5 points)all organisms on earth require energy to live. which statement best describes how ferns, people, and flatworms obtain energy? a. ferns produce atp during photosynthesis, while flatworms and people produce atpduring digestion. b.ferns and flatworms absorb food from their surroundings, while people must digest foodfound in their surroundings. c.producers such as ferns do not require a source of energy, while flatworms and humansmust consume food for energy. d.ferns produce glucose that can be broken down by cellular respiration, while flatwormsand people digest foods containing glucose for use in cellular respiration.