The problem starts already earlier:wildlife experts can only estimate the number of species in the world generally!
This is the case because there are simply too many species, and it takes time to documents them; because some areas (ocean bottom for example) are very hard to access and because sometimes it's hard to know whether we're talking about a new species or a variation within the same species.
so if we even don't know how many species there are, it's even harder to know how many are endangered.
The capital resource is a tractor.
Answer:
The correct answer is <u>''the sympathetic nervous system is activated and adrenal glands release hormones''</u>
Explanation:
The general adaptation syndrome is a theory based on the observation of human behavior in various stress situations and the generalized and the nonspecific activation response that affects the whole organism, which appears in any stress situation. The body responds to imminent danger in three stages: alarm, resistance and exhaustion. At the physiological level, in the alarm stage two systems are activated: the neural and the neuroendocrine. This phase appears immediately after the threat. Different hormones are released: adrenaline, corticotropin and corticosteroids, to improve our performance temporarily.
