The answer is: “Whales are more efficient at gas exchange than humans which helps them conserve energy.”
Answer:
B cells are at the centre of the adaptive humoral immune system and are responsible for mediating the production of antigen-specific immunoglobulin (Ig) directed against invasive pathogens (typically known as antibodies).
Explanation:
T cells are a part of the immune system that focuses on specific foreign particles. Rather than generically attack any antigens, T cells circulate until they encounter their specific antigen. As such, T cells play a critical part in immunity to foreign substances.
material culture includes all of the physical objects that people create and give meaning to. Cars, clothing, schools, computers, and books would be examples. An object only becomes part of culture after meaning have been given to it. A rock in a field has no meaning until it is used as a tool or to build a fence.
It is called LIMITING FACTOR
I dont see any options. Biotic factors are living factors, abiotic are non-living.
Here are some examples of biotic factors in a beach ecosystem.
Fish, crabs, birds, turtles.
-Steel jelly