What is the variable that stays the same in an experiment

What is a muscle fiber? the myosin that makes up the contractile unit of a muscle cell the connective tissue outer covering of a muscle a group of muscle cells that make up the same muscle group a single cell of a muscle?

Objects in the solar system have similarities and differences. which of the following statements best describes how Jupiter and Earth compare.

What safety issues do you need to be aware of when focusing using the high-power lens?

Allopatric speciation requires which of the following? A. partial genetic isolation combined with natural selection B. introduction of two populations to each other, forming a hybrid zone C. extreme natural selection in a hostile environment D.

Which reflex is NOT controlled by the brain stem? A. urination B. vomiting C. sneezing D. swallowing E. salivating

Immediatley after one of your skin cells completes mitosis, each of the resulting daughter cells is?

Yanide poisons mitochondria by blocking the final step in the electron transport chain. human red blood cells placed in an isotonic solution containing cyanide are likely to

Relative to other primates, strepsirhine adaptations include

Which organism is able to cause an infection? (A) bacteria (B) skin cell (C) white blood cell (D) red blood cell

Which is true about enzymes? Question 20 options: They act on nonspecific, randomly chosen substrates. After a reaction, they cannot be reused. They can speed up metabolic processes in the body. They cannot change shape.