Answer:
b.
Explanation:
Plants are living things(biotic).
water and climate are non-living things (abiotic)
Answer:
seriously this is your exam or homework
Explanation:
Answer:
Calcium
Explanation:
Parathyroid hormone (PTH) is a hormone that is secreted by the parathyroid gland. It is the major regulator of the plasma concentration of calcium ions. It regulates calcium ions in the kidney, intestine and bones.
In the kidney, is involved in the re-absorption of calcium in distal ducts and the renal collecting duct, it is also involved in activating the conversion of 25-hydroxy vitamin D into 1,25-dihydroxy vitamin D (calcitriol).
In the intestine, PTH is involved in the absorption of calcium, by increasing vitamin D production.
In the bone, it helps in regulating calcium levels; when serum calcium level is low, PTH stimulates the activity of the osteoclast, to produce more calcium.
TOP STORIES

Winter storm watch issued for Sun PM-Mon AM snow potential
Roanoke Times
8 hours ago

AccuWeather: Chilly stretch through the weekend
6abc.com
2 days ago

Winter Storm Watch issued for parts of WNC ahead of possible snow
WLOS
3 hours ago
Winter Storm Watch - National Weather Service Watch Warning Advisory ...
National Weather Service (.gov) › forecast › ...
WINTER STORM WATCH IN EFFECT FROM SUNDAY EVENING THROUGH MONDAY AFTERNOON... * WHAT...Heavy snow possible. Potential snow accumulations of 4 to 6 ...
National Weather Service
National Weather Service (.gov)
In the west, a series of storms will bring continued mountain snows and low elevation rains. River flooding will persist in the Mississippi and lower Ohio River Valleys into next week.
Chicago, IL
Des Moines, IA
Wilmington, OH
Detroit/Pontiac, MI
Kansas City/Pleasant Hill, MO
State College, PA
Grand Rapids, MI
PEOPLE ALSO ASK
What is the difference between a winter storm watch and warning?
What is a winter storm watch?
A Winter Storm Watch is issued by the National Weather Service of the United States when there is a potential for heavy snow or significant ice accumulations.
Answer:
Lack of diversity = higher chance of extinction
high levels of diversity = higher chance of survival
Explanation:
The probable reasons behind the extinction of some Caminalcules are:
The ratio of males and females were not equal so that there were natural fight between male Caminalcules to get a female. This was one of the cause for lowering the population leading to extinction.
The excessive short-life of these Caminalcules was one of the main reason for their extinction as it is more difficult to real organisms because there would be an inherent bias against observing these species in fossil aseemblegs.
5. The two vestigial structures of Caminalcules were ear muscles and tail bones.
