What are the two primary organelles that work together to produce the necessary enzymes and proteins that all eukaryotic cells need to survive?
nucleus and ribosomes
O plasma membrane and vacuoles
O mitochondria and chloroplasts
O mitochondria and nucleus

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters

26 a medida que cambia el clima, ¿qué tipo de reproducción más probablemente de a una especie mayores posibilidades de supervivencia?