Using a microscope, a student observes a small disc-like green organelle in a plant cell. Which organelle is the student most likely viewing?

vacuole

chloroplast

Golgi apparatus

mitochondria

How many chromatids make up a chromosome

Homologous chromosomes can be found in cells that have completed mitosis. true or false

Which of the following statements comparing respiration in fish and in mammals is correct? A) The movement of the respiratory medium in mammals is bidirectional, but in fish it is unidirectional.

What body system series of organs that converts food into essential nutrients and move unwanted waste out?

What is Nitrogen converted to in order to be useful to plants?

Many toxins and poisons block certain enzymes in the mitochondria. For example, many fruits, including apricots, apples, plums, peaches, and cherries, contain seeds and pits that can cause the formation and release of the poison cyanide if they are

In a classroom system, the students produce an output of information on tests and homework. This information becomes an input for the grading part of the system. Which statement about the output of the students is true? A.

In two or more complete sentences describe how a dam placed in a river can act as both a constructive and destructive force.

When enough experimental data support a hypothesis, the hypothesis becomes a what

Which part of the central nervous system is used to serve as the main communications link between the body and the brain