Answer:
Abiotic: Rocks, soil, sunlight, water (all these things are nonliving)
Biotic: Coyote, Carpet Moss, Lady Fern (all of these things are living)
Answer:
Cell membrane surround cells, but cell wall is an extra covering outside plant cells, made up of cellulose
The most consistent way to obtain information about the evolution of species is to look at the fossil record. Another is to observe the differences between species currently on earth. Another is to use carbon dating.
The correct answer is testosterone.
A chemical messenger simply refers to a hormone.
Testosterone is a lipid - based hormone. In fact, it is an anabolic steroid . Steroids are a type of lipid which has four rings of carbon atoms.
Testosterone is a hormone produced by the Leydig's cells in the testes, and which encourages the development male sexual characteristics such as deep voice, a beard, increased muscle mass and bone mass, and growth of hair on the chest.
