Answer: True
Explanation:
Unnatural occurences are those catastrophic events induced by humans which can exert drastic impact over the ecosystem. These may include deforestation, forest fire, intentional explosion, and others. This will result in loss of many species due to damage caused to the non-living physical environment.
b. metronomes.
c. biomes.
d. pheromones
Answer:
Explanation:
Charles Darwin in the Galapagos. Perhaps our first association with the word "Galapagos" is the name "Darwin." Darwin's visit to the Galapagos Islands had a resounding impact on the formation of his Theory of Natural Selection. ... After surveying the coasts of South America, the ship stopped over in the Galapagos Islands.
Answer: visited and took samples to right about his book
Explanation: hope that helped
b. friction
c. gravity
d. pressure
The right answer is C. +1 (for hydrogen).
The hydrogen atom can lose its single electron to give the H + ion, commonly referred to as the proton name. In fact, the atom which has lost its only electron is reduced to its nucleus, and in the case of the most abundant isotope 1H, this nucleus consists only of a proton. This name is not strictly correct if one takes into account the presence, although discrete (less than 0.02%), of the other isotopes. The name hydron is more general (we also say hydrogen ion, despite the possible confusion with the H- anion).
Answer:
C. +1 (for hydrogen).
What kind of transport is occurring?
Salivary glands create saliva and secrete saliva. Acini, which are collections of cells, are the primary secretory components of salivary glands.
The largest salivary glands, the parotid glands, which are located between the rear of the jaw and each ear, release around 25% of the total volume of saliva when at rest.
The parotid capsule, a tough capsule that encases each gland, is present. Saliva from the parotid is typically watery or serous.
Large amounts of bicarbonate ions are secreted, potassium is secreted, and a significant portion of sodium is actively reabsorbed.
Salivary glands include small collecting ducts that branch out into larger ducts until they unite into one giant duct that exits into the mouth cavity.
Therefore, salivary gland cells produce the enzyme salivary amylase and secrete it into the salivary ducts.
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Answer:
Saliva is produced in and secreted from salivary glands. The basic secretory units of salivary glands are clusters of cells called an acini. These cells secrete a fluid that contains water, electrolytes, mucus and enzymes, all of which flow out of the acinus into collecting ducts. Within the ducts, the composition of the secretion is altered. Much of the sodium is actively reabsorbed, potassium is secreted, and large quantities of bicarbonate ion are secreted. Bicarbonate secretion is of tremendous importance to ruminants because it, along with phosphate, provides a critical buffer that neutralizes the massive quantities of acid produced in the forestomach's. Small collecting ducts within salivary glands lead into larger ducts, eventually forming a single large duct that empties into the oral cavity.
Explanation: