What group of mammals have a.] embryos that spend more time feeding through the placenta than the mother's nipples, b.] young that feed on milk, & c.] a prolonged period of maternal care after leaving the placenta?

What group of mammals have a.] embryos that spend more time feeding through the placenta than the mother's nipples, b.] young that feed on milk, & c.] a prolonged period of maternal care after leaving the placenta?

What group of mammals have a.] embryos that spend more time feeding through the placenta than the mother's nipples, b.] young that feed on milk, & c.] a prolonged period of maternal care after leaving the placenta?



Answer: eutheria.