What is the ultimate source of energy for most organisms and how is this energy capture so it is useful in a food chain?

Which statements are correct concerning human DNA? It contains 23 chromosomes It contains 46 chromosomes Each strand contains chromosomes from one parent. Each chromosome contains 23 genes

Females of one species choose mates based on song quality; females of another species choose mates on the basis of size. a. behavioral b. gametic c. habitat d. temporal e. mechanica

Which of the following correctly describes what a mutation is? A. A change in in the DNA code of an organism B. A change to a gene of an organism C. A change to the nucleotide sequence D. All of the above

What is the neurobiological approach

How do ecologists use modeling?

In fruit flies long wings (W) are dominant to short wings. What is the phenotype of the known parent

Bromothymol blue is placed into water and a student blows bubbles into it to change the color to yellow. A plant is placed in each test tube. One is placed in the light and one is placed in the dark.

A scientist is conducting an experiment to test a hypothesis. If the data from the experiment does not support the hypothesis, the research is not a waste of time because - A no additional research needs to be conducted B the question was answered

Which of the following types of models is most likely to be used to predict earthquakes? a. idea model b. physical model computer model d. none of the above

What allows members of the same species to have different characteristics