Evaporation, condensation, precipitation are all part of the water cycle. After the precipitation, the “destiny” of the water is ground water or surface runoff.
Groundwater is the term for all the waters beneath Earth’s surface, that fills in porous spaces in soil, sediment, and rocks. But, when falling rain cannot be absorbed by soil (saturated by water) and become groundwater, it flows over the surface and this is called surface runoff. Groundwater has its zones: vadose zone (right beneath the ground, unsaturated zone), water table (water pressure head is equal to the atmospheric pressure), zone of saturation (saturated with water).
A watershed is the land area that drains into a body of water.
1) Scientists believe that the ancient ancestors of all animals were <span>single-celled eukaryotes that sometimes grew in colonies.
</span>Eukaryotic cells have membrane-bound organelles such asmitochondria<span> and the Golgi apparatus.
</span>The best answer is :
<span>B) single-celled eukaryotes that sometimes grew in colonies</span>
They are the direct ancestors to birds today <span>They are the direct ancestors to birds today. </span>
Answer:
There is no video but ecological relationship will be defined on a general note and it is not always beneficial to organisms.
Explanation:
In an ecosystem, organisms of the same or different species tend to interact with one another. This interaction is referred to as ECOLOGICAL RELATIONSHIP between the involved organisms. An ecological relationship can be of different types depending on the effect.
SYMBIOSIS is an ecological relationship between two organisms that interact together. SYMBIOSIS can either be mutualistic (both organisms benefit), parasitic (one organism loses and one gains), or commensalistic (one organism benefits and one neither benefits or loses). Another ecological relationship is PREDATION, where one organism called the PREDATOR feeds on part or all of another organism called PREY in order to obtain energy.
As stated above, some of the organisms involved in an ecological relationship benefits while others lose. Hence, it is not always a beneficial relationship to organisms.
Answer:
Theodor Schwann is a german scientists from rhe 1800s
