Answer: from the mouth to stomach
Explanation: mechanical digestion takes place when the food travels down from the mouth to stomach. Chemical digestion occurs from the mouth to intestine.
Answer - The Czech Rebublic
As of January 1, 1993 due to the period of great ethnic tumoil in <span>Czechoslovakian region, it was splited into </span>Slovakia and Czech Republic. After the split, the new Czech republic was faced with <span>the threat of invasion by Slovakia.</span>
Answer:
Basalt, sedimentary rock.
Explanation:
- The reason why the continental crust differs from the oceanic crust is much different in its compositions. The continental crust is thin and less dense , is made of sedimentary and metamorphic rocks than the oceanic crust and is made of lighter elements. The tectonic plates move the composition to the rocks.
Answer:
B. All of these are drivers
Explanation:
The populations of lot of amphibians, with rare exceptions, are constantly on the decline around the world. The main reason behind this is the human activity, as it has caused lot of changes, pollution, and dangers for the amphibian populations, which has led lot of amphibians to be on the verge of extinction.
The pollution, especially of the waters, has been a major factor for the decline of the amphibian population. Lot of very toxic chemicals have made the water unsuitable for living and poisonous, which systematically killed off the amphibian populations.
The habitat loss, as with any other group of animals, has left the amphibians without places to live. They have been left without their shelters, food sources, mating grounds, and they have started to die out.
The invasive species, especially the predatory ones, have also had big negative impact. The amphibians didn't had any defense mechanism against the introduced predators, so they were easy prey and their numbers rapidly went down.
