In a certain species of plant, flowers can be purple or white. When a plant with white flowers is crossed with a plant with purple flowers, all of the offspring have purple flowers. Describe the relationship between the alleles for flower color for the plant.

The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?