Question 15 (id=2028183) the amount of carbon dioxide (co 2) in the atmosphere decreases during the summer and increases during the winter in the northern hemisphere. which process could cause the amount of carbon dioxide to decrease during the summer? a: burning of large forests b: photosynthesis by plants c: respiration by plants and animals d: decomposition of plants and animals

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring