1. the point where the muscle attaches to the bone to be pulled is called the
a. origin
b. insertion
c. sarcomere

2. the endocrine system produces which are chemical messengers that carry a specific message to certain body cells.
a. hormones
b. dendrites
c. feedback mechanisms

i'll try what topic lol

because the light is a great source of energy for the plants to survive. (i hope this )

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )