The first stage of Piaget’s cognitive-developmental theory, spanning the first two years of life, is called the ________.

School-age children with a strong sense of attachment security and whose parents use a(n) ________ child-rearing style feel especially good about themselves.

Which statement about school-age children’s friendships is true?

Most theories of moral development agree that initially a child’s morality is ________.

A patient is admitted to the hospital after excessive dehydration. To restore fluid balance, the medical team administers a saline solution that is hypertonic relative to the patient’s blood cells. After the infusion, the patient’s red blood cells are observed to crenate (shrink and shrivel). What most likely caused the red blood cells to crenate in this situation?  

Which of the following are newly acquired characteristics of bacterial cells successfully transformed with pGLO?  

What stain is commonly used to observe cheek cells under the microscope?    

Which of the following best describes the difference between anabolic and catabolic reactions? A. Anabolic reactions break down molecules to release energy, while catabolic reactions build up molecules, consuming energy.B. Anabolic reactions build larger molecules from smaller ones, consuming energy, while catabolic reactions break down larger molecules into smaller ones, releasing energy.C. Both anabolic and catabolic reactions involve breaking down molecules to release energy.D. Both anabolic and catabolic reactions involve building molecules, consuming energy.  

You’re at a picnic enjoying a variety of plant-based foods. You notice that the starchy potato salad tastes great and digests easily, but the fibrous kale salad makes you feel a bit bloated. Curious, you ask yourself: Why can your digestive system break down the starch in potatoes but not the cellulose in kale? Which of the following best explains this difference? A) The human body produces enzymes that can break down starch but lacks enzymes to break down cellulose.B) Starch is water-insoluble, while cellulose dissolves quickly in water, making it indigestible.C) Cellulose molecules are toxic to the human body, so they remain undigested.D) Starch is a simple sugar, but cellulose is made up of complex fats that the body cannot process.

What is a stoma? A. A structure that transports water and nutrients from the roots to the leaves.B. A pore on the surface of a leaf that allows gas exchange.C. A pigment in plants responsible for absorbing sunlight.D. A type of plant cell that provides structural support.