There are over 35,000 midwives working in the UK, which may seem like a lot of midwives but with the current trend of over 30,000 more babies born a year compared to the year before, the need for midwives has never been so pressing. A national shortage of midwives makes now a great time to train to be a midwife.
An adaptation is a modification or change in the organism's body or behaviour that helps it to survive. Explore the links given here to know more about habitats and how different plants and animals. An animal may adapt to its habitat in different ways.
The idea of Earth's carrying capacity goes something like this: Humans need certain resources to survive at subsistence level -- most commonly air, food, water and usually some kind of shelter. A sustainable habitat is one in which supply of and demand for these resources are balanced.