An apple tree can reproduce both sexually and asexually. A botanist crosses (sexual reproduction) a red-fruited apple tree (Rr) with a yellow-fruited apple tree (rr). Of the ten plants produced, five grow red fruit and five grow yellow fruit. The botanist cuts pieces from the red-fruited apple tree’s branches places them in soil and wait for them to grow new roots, leaves, and fruits. The botanist learns that when this red-fruited apple plant reproduces asexually, the fruits of its offspring are always red.

Draw two models, one representing sexual reproduction and one representing asexual reproduction, to show how the trait for fruit color is passed from the parent to the offspring.

Describe the genetic variation of the offspring in each type of reproduction. How are the outcomes of each type of reproduction in each case different? Use science vocab learned in this unit.

Momentum lab this lab uses a phet simulation. navigate to the phet momentum simulation. if you don’t see the image below when you click on the link, then you need to either enable adobe flash (click on the puzzle piece on your screen) or you need to install adobe flash (this is a free program). change the vectors to be momentum vectors only. they are yellow. make the mass of both balls the same. hit play and notice what happens to the momentum vectors before and after the collision. you might want to play the sim multiple times. click on restart or return balls to start over. to see numbers, check the show values box (inside the green box). red’s momentum vector before the collision is green’s momentum vector after the collision. question 1 options: shorter than longer than equal to question 2 (1 point) saved since green bounces off red, this must be an collision. question 2 options: explosion inelastic elastic question 3 (1 point) red transfers of its momentum to green during the collision. question 3 options: little all most none question 4 (4 points) why does red transfer all its momentum to green? back up your answer with information from the simulation. write at least 2 sentences.