Motor unit refers to the functional element of muscle contraction during an exertion. There are two basic types of motor unit: large and small motor units. During low to moderate level exercise, small motor units are activated. Small motor units are recruited during sustained activity; is made up of high proportion of type 1 muscle fibers, which are resistant to fatigue
Answer:
The secretory portion is found in the dermis, the middle layer of the skin. Sometimes it's also found in the hypodermis, the deepest layer of our skin. The secretory portion of a sweat gland is a twisted and coiled tube that has an opening at its very top.
Explanation:
hope this helps :}
Sympathetic nervous system elevates blood pressure. Long term, decrease in capillary blood
pressure recalls fluids from interstitial spaces. Aldosterone and ADH promote
fluid retention. Increased thirst promotes water absorption across the
digestive tract. Short term, Carotid and aortic reflexes move up cardiac output
and peripheral vasoconstriction.
Complete Question:
The carbon cycle includes processes that release carbon into the atmosphere and places that act as carbon reservoirs. The diagram below shows both major processes that release carbon and major carbon reservoirs. (See attached picture for the diagram being referred to)
Which of these disruptions would cause an excess output in the carbon cycle?
A. The destruction of terrestrial biota
B. Increases in marine biota
C. A reduction in the use of fossil fuels
D. A thickening of ocean sediments
Answer:
A. The destruction of terrestrial biota
Explanation:
Terrestrial biota play a very cogent and fundamental role in the regulation of carbon in the carbon cycle. Serving as a reservoir of carbon, terrestrial biota helps in absorbing carbon dioxide from the atmosphere.
Therefore, the destruction of terrestrial biota would lead to an excess output of carbon in the carbon cycle due to the reduction in the capacity of forest and other plant community to absorb carbon dioxide from the environment.
Destruction of terrestrial biota would result in an excess output in carbon when compared to other disruptions.
Answer:
They breathe it in from the surrounding air. They break down the plants and animals they eat. They absorb it from the surrounding soil. They absorb it from water through their pores.
Explanation: