Blog

The filled-in squares of a Punnett square represent   A)   the gametes from both parents.   B)   all possible combinations of gametes based on a cross between the two parents.C)   an exact ratio that must always occur when the same parents have four offspring.D)   examples of some of the offspring that can arise from a one-trait cross.E)   the gametes from one parent.

Darwin and Wallace both concluded that species evolve through the process of natural selection. What similar experiences and information helped them both reach the same conclusion?                        A)   Both supported the ideas of Cuvier.                    B)   Both were familiar with the writings of Lyell.            C)   Both traveled the world and collected specimens for museums in England.            D)   Both were naturalists.            E)   Both collected specimens from islands in the Malayan Archipelago.

Which statement does not apply to all fungi?                        A)   Fungi are chemoheterotrophic by absorption.                 B)   Fungi produce gametes that are motile.            C)   Adult fungal cells are haploid.            D)   Fungal cell walls are composed of chitin.            E)   Fungi are thought to be descendants of a flagellated protist.

Microevolution is the term that applies to which of the following?                        A)   any evolution at any scale                       B)   large-scale changes over a long period of time            C)   small-scale changes over a long period of time            D)   small-scale changes over a short period of time            E)   changes of any scale within microorganisms

Which of the following behaviors not associated with diet would decrease your risk of cancer?            A)   increasing the consumption of foods rich in vitamin A and C         B)   avoiding salt-cured, pickled, and smoked foodsC)   increasing the consumption of fruits and vegetablesD)   avoiding cigarette smoking, smokeless tobacco, and sunbathingE)   increasing fiber and decreasing sodium in your diet

Some scientists estimate that over half of the world’s rainforest has already been lost, mostly due to human activities. What would you predict as a consequence of the massive loss of plant life?                        A)   a decline in atmospheric carbon dioxide             B)   reduced incidence of flooding            C)   an increase in atmospheric carbon dioxide            D)   a decline in soil erosion            E)   a drop in average temperatures worldwide

Match the terms to the correct description or definition

The tough outermost layer of the meninges:

Which term best describes receptors that detect body and limb movements, skeletal muscle contraction and stretch, and joint capsule structure?

The ventral root carries_________,while the dorsal root carries __________ neurons.