What does the presence of homologous structures in different organisms suggest?

common distribution

common ancestry

similar habitat

similar movement

A scientist wants to display the proportion of 250 geese that were male compared to the proportion that were female. what type of visual display should the scientist use? a. a line graph b. a bar graph c. a circle graph d. a data table

Genetic variation can arise in a number of different ways. which of these is a way that variation can arise during meiosis A. fertilization B. genetic drift C. crossing over D. natural selection

Which of the following is not a possible global effect of local environmental changes? A) deforestation in the Amazon B) disruption in animal migration patterns C) tidal waves D) rising sea levels E) alteration in competitive balance between species

A solution of sugar water is heated at a very slow rate until all of the water is gone. A crystalline solid is left in the beaker. explain what happened to the water

The glaister equation is just one formula used to approximate the postmortem interval. if anna had died outside instead of inside her air conditioned house, would the glaister equation be an appropriate model to use to determine her time of death?

Explain the role food, water and oxygen play in the creation of ATP or the release of energy from this molecule.

Using what you have learned about carbon bonds and energy in this lesson what can you say about the amount of carbon bonds in this food component compared to the amount of carbon bonds in the other two food components? Why?

Which of Schaie's stages of development suggest that the major concerns of middle-age adults relates to their personal situations? a. Responsible stage b. Executive stage c. achieving stage d. Acquisitive stage

Any change in plant communities over time is called a (n)

In a population of short, ground-dwelling animals, some offspring were produced that were approximately 1 cm taller than others in the population. This group was able to reach slightly higher vegetation than the rest of the population.