Describe the relationship between each of the following pairs: molecules and cells, tissues and organs, organs and organ systems.

Explain the relationship between homeostasis and the internal environment.

Name the body cavity that houses each of the following organs: a. Stomach b. Heart c. Brain d. Liver e. Trachea f. Rectum g. Spinal cord h. Esophagus i. Spleen j. Urinary bladder

How are the characteristics of life dependent on metabolism?

Explain the relationship between the key terms in each of the following pairs. a. aggressive and assertive b. self-concept and self-esteem c. emotion and mental health

In 2 hours Barton drives 120 miles from his home near Lubbock to visit a friend near Amarillo. Due to bad weather the return trip takes 3 hours. Find his average speed on the return trip.

Explain the relationship among cells, tissues, organs, and organ systems.

How are cells, tissues, and organs related?

Describe the relationship between the following pairs of terms: (a) gene and chromosome (b) gene and allele (c) intron and exon

In which of the following pairs are the terms NOT related? A. nucleus—DNA. B. chloroplasts—chlorophyll. C. flagella—chromatin. D. cell wall—cellulose.

Solve the system of linear equations by elimination. Check your solution.

$$\begin{array} { l } { 2 x + 5 y = 16 } \\ { 3 x - 5 y = - 1 } \end{array}$$

Describe how an early interest in the human body eventually led to the development of modern medical science.

$$\begin{array} { l } { \text { Suppose that } n \text { is odd and } \sigma \text { is an } n - \text { cycle in } S _ { n } \text { . Prove that } \sigma \text { does } } \\ { \text { not commute with any element of order } 2 . } \end{array}$$

Graph each inequality.

$$y \geq \log _ { 3 } ( x - 1 )$$