TEKS 18 Week Review

During asexual reproduction, a single algae cell becomes two daughter algae cells. The genetic material in each of the daughter cells is usually —

• half the number of genes

• totally different from the parent cell

• the same number of genes

• twice the number of genes

When a litter of puppies is born, the pups will exhibit certain physical characteristics that can be found in one or both of the parent dogs. These characteristics passed down from parent to offspring are considered to be-

• acquired traits

• recessive traits

• genotypes

• inherited traits

Ms. McNulty's class was studying human body systems. The students learned about a system that moved oxygen to the cells and contained structures that help the body fight infections.

The class was studying the —

• muscular

• digestive

• circulatory

• endocrine

The function of the human excretory system is to —

• break food into small molecules that the body can absorb

• dispose of wastes and control body fluid composition

• move materials from the environment into the body

• produce enzymes the body needs to break down food

Devon has cystic fibrosis or CF. It is an inherited condition that causes his body to produce excess mucus and lower than normal levels of digestive enzymes. A person with CF often experiences the following symptoms:

· frequent lung infections

· poor energy level

· low appetite

Although all of Devon’s body systems are affected by cystic fibrosis, it is mainly a disorder of which two body systems?

• circulatory and digestive

• digestive and skeletal

• digestive and respiratory

• circulatory and respiratory

Ralph is camping with his family and for dessert, they decide to make smores. Ralph roasts the marshmallow on an open fire until it turns a golden brown. He then adds the toasted marshmallow onto a graham cracker with chocolate causing the chocolate to melt. Which of the following statements best describes the chemical and physical changes that occurred?

• Toasting the marshmallow is a chemical change and melting the chocolate is a physical change

• Toasting the marshmallow is a physical change and melting the chocolate is a chemical change

• The open fire and the layers of a smore (graham, marshmallow, and chocolate) are both a physical change

• The open fire and the layers of a smore (graham, marshmallow, and chocolate) are both a chemical change

Which of the digestive processes above will be found in the middle section of the Venn diagram?

• I

• II

• III

• IV

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• Integumentary

• Muscular

• Digestive

• Nervous

What 2 (two) body systems are interacting in the diagram?

• Integumentary-Endocrine

• Respiratory-Digestive

• Circulatory-Digestive

• Circulatory-Respiratory