Natural Selection & Evolution

If a plant exhibits stunted growth and a pale green color, which mineral deficiency is MOST likely the cause?

What is the primary function of xylem in plants?

In the process of transpiration, water vapor diffuses out of the leaves through which structures?

Which of the following is NOT considered a primary organ of a flowering plant?

What process directly relies on the presence of light and chlorophyll?

If the number of deaths in a population is higher than the number of births, what will MOST likely happen to the population size?

Which process directly involves the loss of water vapor from a plant?

Deforestation primarily leads to an increase in which of the following gases in the atmosphere?

What is the role of root hairs in a plant's root system?

The kidneys, skin, and lungs work together in the human body to perform which essential function?

How does natural selection MOST directly affect the frequency of certain traits in a population?

Which situation MOST directly illustrates 'survival of the fittest' as described by Charles Darwin?

Which of the following is a waste product removed by the excretory system?

Which term describes the process where water is drawn up a plant due to evaporation from the leaves?

In the context of species definition, which statement BEST describes why a horse and a donkey are considered different species?

Which of the following is an example of continuous variation in humans?

Which of the following describes the chromosomal composition of a typical human male?

During the process of fertilization, what is produced when a male gamete fuses with a female gamete?

What is the MAIN role of the placenta during pregnancy?

Why is it important for pregnant women to avoid consuming large amounts of caffeine?

What potential effect does smoking during pregnancy have on the fetus?

What is the MOST likely outcome for a baby born to a mother who misused non-medicinal drugs during pregnancy?

Examine the food web. If the population of tree frogs were to suddenly decrease, which population would MOST likely be directly affected?

Which of the following abiotic factors can lead to population changes in an ecosystem?

A population of bacteria is treated with an antibiotic. Initially, most of the bacteria are killed, but some survive and later reproduce, leading to a population that is mostly resistant to the antibiotic. This is an example of?