T Tubules Are Made Of

question 68

Multiple Choice

T tubules are made of:

• A)blood proteins.
• B)plasma membrane.
• C)brain cells.
• D)osteocytes.
• E)actin.

---

Definitions:

Abiotic Environment

Inanimate chemical and physical components of the environment influencing living beings and ecosystem operations.

Biological Community

A group of interacting organisms of different species living in a common location.

Fundamental Niche

The potential niche an organism can occupy in an ecosystem, without taking into account competition and other biotic factors.

Realized Niche

The actual conditions and resources in which an organism or population lives and reproduces, considering biotic and abiotic factors.