Tough connective tissue structures that hold bones together are known as
a. tendons.
b. smooth muscles.
c. striated muscles.
d. ligaments.

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

What molecule does hemoglobin decay into over time

Which tool could you see a plant cell? a. a filter b. a microscope c. a microwave d. an electromagnet