Answer:
Option A.
Explanation:
Air pressure decreases with increasing altitude.
2.34A
2.5 mol of ba (H3PO4)
1000.og of m= 2.3 m
Drug "Tolerance" is the status of when the body has become accustomed to a medication and requires more to achieve a same affect. Makes sense wouldn't you say.
The plant species that live in the colder environment have some adaptations that makes them survive in that conditions
These plants have a well developed vascular system due to which they have the ability to trap every inch of sunlight available for the process of photosynthesis.
Some of the plants shed their leaves and stay in dormant conditions.
Evergreen trees have thick waxy coating that prevents the loss of water.
The plants that grow in arctic regions are small and they grow close to the ground in a specific shape that helps them to shed snow from them.
If a zebra mussel is discovered in a lake in Pennsylvania, then the ecologist would be worried because it is an invasive species. The zebra mussel is native to Ukraine and Russia, but if it has been found in Pennsylvania, than it means that it has been introduced in this area. As an invasive species, the zebra mussel can be very dangerous for the native species in the lake. The invasive species usually are more competitive for food sources than the native species, manage to reproduce quicker, bring in diseases, and the native species tend to not have defense mechanisms for them. This leads to rapid decline or even extinction in the native species, while the invasive spreads out quickly and takes over, resulting in dramatic change in the whole ecosystem.
