How are stem cells being used by medical researchers today

52(4p+1) ≤ 4 3+12p can someone solve it for me with explanation

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

Panthers and leopards prey on deer in an ecosystem. for unknown reasons, the population of leopards increased drastically. what are the likely effects of this change on the species? 1. more food for panthers and more competition for leopards 2. less food and more competition for panthers 3. fewer deer and more competition for panthers 4. more food for deer and less competition for panthers and leopards 5. more food for leopards and less competition for panthers