Recent content by mom at 21

I will have to take this test again next week but the trick is I dont know what I got wrong???? 1. Which phrase below best completes the following statement concerning the biological species concept? "Two organisms are of the same species if they _____." (Points: 5) can successfully...

oThere is evidence of endosymbiosis: earliest protists took bacteria into themselves and the bacteria became XX (internal symbionts) that formed mitochondria and chloroplasts! oThree main groups, based on mode of nutrition (this is a bit clearer than how the text groups them!) xx = animal-like...

•The most important pollinator species is the XX, which is dying off in huge numbers (colony collapse disorder, CCD) •Sexual Reproduction in Flowering Plants (yes, birds do it, bees do it, and plants do it too!) oXX = unique reproductive structures found only in angiosperms (flowering plants)...

Carry water & minerals upwards from roots to rest of plant •Know the Cohesion-tension model (15.6) oWater evaporates from pores called XX in leaves This process is called XX Pores can be opened or closed by the pair of XX cells that surround each pore oEvaporation causes XX (pull) on...

oVascular plants Have true XX, XX and XX, connected by internal vessels called XX (moves water and minerals up the plant from the roots) and XX (moves sugar down the plant from the leaves) Main body form is the sporophyte; gametophytes are tiny and short-lived (just for reproduction) Three types

20. Genes that are located on the same chromosome (Points: 4) tend to be inherited together. will appear together in the gamete. are said to be linked. may be separated during chromosome pairing and crossing over. fit all of these characteristics. 21. If a...

1. Body cells of human males contain (Points: 4) one X chromosome and one Y chromosome. two X chromosomes. two Y chromosomes. two O chromosomes. chromosomes X, Y, and O. 2. Which of the following nitrogenous bases is NOT found in molecules of DNA? (Points: 4)...