What is the minimum number of cardio exercises you should perform?A. 15 minutes, 2 days per week. B. 30 minutes, 3 days per week. C. 45 minutes, 5 days per week D. 60 minutes, 6 days per week

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

4the indian leaf butterfly has traits that allow it to resemble a leaf. the bright colors of the monarch butterfly indicate that the butterfly tastes bad and can be poisonous. how does the appearance of these butterflies them to survive? f the indian leaf butterfly is able to avoid predators while the monarch butterfly warns predators away. g. the indian leaf butterfly frightens predators away while the monarch butterfly poisons predators before they can eat it. h both butterflies rely on camouflage to avoid predation. j both butterflies cooperate with one another to avoid predation.

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important