Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs. Perfusion is the process by which the cardiovascular system pumps blood throughout the lungs.
Answer: The initial consequence to the lake due to a sudden influx of nutrients in the form of fertilizers due to run off from nearby farm fields is the rapid growth of algae. The influx of nutrients lets algae thrive and can cause eutrophication, which will eventually lower dissolved oxygen levels.
Explanation:
Answer:
1. Ants, termites, and bees
Explanation:
Eusocial societies are common in insects. This type of behaviour is characterized by the fact that individuals fall into certain groups with certain behaviours. For example, think of worker bees and the queen bee. These societies are associated with a few features:
- the offspring are cared for by individuals other than the parents -many members in the group can cooperate to take care of the young.
- labour is divided into reproductive and non-reproductive groups. Only the reproductive individuals are able to have offspring, the others help with parental care, gathering food, and maintaining shelter.
- this creates groups, sometimes called 'castes', that animals fall into. They do not deviate from these groups once they are established.
The right answer is human embryonic stem cells (hESCs).
Emerging embryonic stem cells are endowed with two important capacities: that of multiplying to infinity, by simple division (self-renewal), and that of giving birth to all types. of cells of the body (pluripotency).
These properties open up many perspectives, not only for regenerative medicine (including cardiology) but also for the study of genetic diseases and the development of treatments.
<span>Retailers can possess channel control through private brands. Private brands are products that are solely manufactured for retailers. The retailer is then responsible to market the product under their brand name. Consumers generally assume that private brands are of lower quality, but slowly this perception is beginning to alter.</span>
