Commensalism. The fish is benefited and the sea urchin is not affected.
Answer:
The answer is C.
Explanation:
Water will move from an area of lower solute concentration to an area of higher solute concentration.
Answer:
None of these options is correct.
Explanation:
As in first option animal show herbivorous behaviour by eatin plant as well as in second option plant is toxic for animal .
while symbiosis is a process in which two animals stay together to harm each other or to help each other or for some other conditions but in these options there is no such situation here.
Answer: Hormone
Explanation:
A hormone is a chemical substance produced in small quantities by an endocrine gland (such as thyroid gland in the neck) and carried in the blood to another tissue in the body where it acts as a messenger to control itsfunction.
Examples of hormones include:
- Thyroxine produced by the thyroid gland in the neck
- Testosterone produced by the testis in male humans
- Oestrogen produced by the ovary in female humans
The common iliac vein is posterior to the femoral artery. Attached is an image showing that the common iliac vein is posterior to the femoral artery.
