Living things are biological structures that respond to changes in the environment or within their own entities. This includes animals, plants, fungi and the single-celled organisms known as bacteria. Living things have complex biochemical organizations that allow them to process substances and utilize energy in order to respond to changes around them.Know More
According to New Mexico Tech, all living things display the seven characteristics of life. The first of these is that they are comprised of cells. Single-celled organisms have only one cell that completes all of the necessary tasks of life, while multicellular organisms have many specialized cells. Living things are also complexly organized, both on the molecular and cellular level. In multicellular organisms, cells are organized into tissues, and tissues are organized into organs.
In order to be considered a living thing, a structure must take in energy and use it not only to respond to the environment, but also to grow and maintain itself. Living things grow in several ways; cells divide to form new cells, cells become larger, and an organism increases in size as its number of cells increases. The sixth characteristic of life is the ability to reproduce, and the seventh is the ability to adapt to the environment. Though individual organisms may not satisfy these final two characteristics, groups of similar organisms must in order to be considered "living things."Learn More
Carrier proteins permit, but limit, the diffusion of particles across a cell membrane that is impermeable to them. They are a major type of protein used in facilitated diffusion, with the other being channel proteins. Unlike channel proteins that remain open for the passage of particles, carrier proteins are open on only one side at a time, accepting a single particle, closing on that side and opening on the other.Full Answer >
Artificial pollination is the process of applying pollen to plants that would normally be applied by the insects that pollinate plants. Artificial pollination can be accomplished with the use of a brush to apply the pollen. This is a technique similar to the one biologist Mendel used while studying genetics and inheritance. There are several benefits to artificial pollination, including gaining greater control over the genetic population of the crops.Full Answer >
A diploid cell contains both sets of homologous chromosones. Homologous chromosomes are sets of chromosomes from both the mother and father that pair together inside a cell. Human diploid cells consist of 46 chromosomes.Full Answer >
A normal, mature follicle that is ready to ovulate and conceive is 18 to 30 millimeters in diameter. During a regular menstrual cycle, several different follicles begin to enlarge and mature, but only one follicle can complete the maturation process each month.Full Answer >