Which of these is not part of the circulatory system?

What type of muscle is the heart made out of?

What gives a plant cell its shape?

Leaves are composed of vascular tissue that brings water in so that ground tissue can conduct photosynthesis. Based on this information, what level of organization describes leaves?

Tissues working together to form specialized functions are called:

What are the tiny building blocks for all life?

Which is a plant cell?

Which of these is a physical change that happens during digestion?

Which genotype is heterozygous?

If an offspring is showing the phenotype of a recessive gene, which of these must be true?

What thin lining controls what goes in and out of a cell?

What are the tiny air sacs in your lungs called?

According to cell theory, which statement is true?