The number of E. Coli Bacteria increased quite a lot in between a ten hour period.
A scientific theory explains the reason for the occurrence of phenomena. However, a scientific law is limited to applicability and does not give any explanation regarding the phenomena in which it can be applied to.
Answer:
It tells us that homologous structure is evidence of common ancestry
Explanation:
<em>Homology is the similarity of organs of different organisms even though they perform different functions in the organisms. Organs that are built on a similar plan but perform different functions are known as homologous organs. </em>
Organisms having organs built on a similar plan is an indication that they were once from the same source and adapting to different environments must have been the reason the organs evolved for different functions.
For example, all mammals have limbs that are built on a similar five-digit plan even though limbs are adapted for different functions in different mammals.
Some Lampreys are anadromous from their lake and they migrate up rivers to spawn.
Explanation:
If the adult fish live in the sea and migrate into fresh water to spawn is known as anadromous and if the adult fish live in fresh water and migrate into salt water to spawn is known as catadromous.
An anadromous fish like salmon, smelt,shad spends most of their life in the sea and returns to fresh water to spawn. A catadromous fish like eels lives in fresh water and enters salt water to spawn.
Sea lamprey brings nutrients into fresh water and provide a source of food for various birds, fish, mammals and people. The newly transformed lamprey can live only for few months in fresh water .
The females deposit a large number of eggs in nest made by males in the streams with strong current. Spawning is done by death of the adults
Answer:
false
Explanation:
The head is hydrophilic and the tail is hydrophobic
