1. if the allele for tall pea plants (t) is dominant over the allele for short pea plants (t) what is the genotype of a homozygous tall pea plant? * a. tt b. tt c. tt d. tall 2. using the information from the question above, what percentage of the offspring would be short if one parent is homozygous dominant, and the other is heterozygous? a. 100% b. 50% c. 25% d. 0% 3. use this dihybrid cross to answer the next question * [picture below based on the above cross, what is the probability that an offspring would have wrinkled, yellow seeds? a. 1/16 b. 8/16 c. 9/16 d 3/16 4. which of the following are reasons meiosis is important for sexual reproduction? * a. haploid daughter cells ensure offspring have reduced chromosome #, but same information as parent cell. b. allows for increased diversity through crossing over & independent assortment c. diploid daughter cells ensure offspring have same total amount of dna as parents d. ensures that offspring are identical to the parents 5. people have been manipulating dna for hundreds of years through selective breeding techniques and splicing. scientists now can create transgenic animals. what does it mean to be transgenic? * a. it has fewer genes. b. it has more genes. c. a gene has been altered by scientists. d. it genes from 2 organisms have been combined.

The collared lizard is a species found in the desert southwest. male collared lizards show considerable color variation, ranging from brightly colored to a very dull pattern. your goal is to determine the function, if any, of male color patterns in collared lizards, using the scientific method. your tentative explanation is that male color plays a role in attracting females for mating purposes. you predict that females will preferentially choose brightly colored males over dull-colored ones. to test this prediction, you observed the interactions of female collared lizards with their male counterparts. you selected males that were the same age and size, and that differed only in their coloration pattern. you placed equal numbers of the two types of male lizards, bright and dull, in aquariums, along with one female lizard per aquarium. out of 350 aquariums observed, the female chose to mate with the brightly colored male 277 times, and the dull-colored male 70 times. in 3 instances, the females did not mate with either type. create a bar graph of your data, plotting the type of male (dull or brightly colored) on the x-axis. on the y-axis, plot the frequency with which each type of male was chosen by females. using this graph, answer the following question(s). is it reasonable to conclude (i. e., is it supported by the data) that female collared lizards prefer more brightly colored male lizards over dull-colored males?

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism

1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit