Coral ecosystems are a source of food for millions; protect coastlines from storms and erosion; provide habitat, spawning and nursery grounds for economically important fish species.
Answer:
The animal’s homeostasis is what keeps the internal organs working and keeps the animal out of harms way, for example a lizard, when hot will move to a cooler area because of its homeostasis, so the homeostasis triggers different reactions and behavior in animals.
Explanation:
Two classic examples of oceanic island arcs are the Mariana Islands in the western Pacific Ocean and the Lesser Antilles in the western Atlantic Ocean. The Cascade Volcanic Arc in western North America and the Andes along the western edge of South America are examples of continental volcanic arcs
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Answer:
A. Viruses do not contain RNA or DNA.
Explanation:
This is not a reason why viruses violate the conditions for life. Viruses do contain DNA or RNA, as they are usually made up of a central core of either DNA or RNA surrounded by a coating of protein. However, there are several other characteristics of life that viruses do not fulfill. Viruses are not made up of cells. They have no energy metabolism and do not grow or produce waste. They also do not respond to stimuli and do not reproduce independently.
Answer:
White blood cells change their shape to reach a site of infection.
Explanation:
White blood cells (leukocytes) are part of the immune system and have are responsible for tracking and killing pathogens such as bacteria. An important way white blood cells eliminate pathogens is by 'eating' them (pahgocytosis).
White blood cells circulate in the blood stream, but are usually required at the site of infection inside tissues. For this to happen, the white blood cells have to migrate through the walls of small blood vessels and have to be able to find their way in tissues . This can only occur because the white blood cells are able to change shape .
