Please help! Some species of plants maintain a symbiotic relationship with bacteria that live in nodules on the plant's roots. Which is a likely function of such bacteria that would benefit the plant?
A) phosphorus fixation
B ) nitrogen fixation
C) aerobic respiration
D) photosynthesis

Using meiosis, the sporophyte produces spores that are .

Which of the following statements is accurate about evolution? question 10 options: natural selection only eliminates odd individuals. evolution means that a population never has changes in its genetic frequencies. mutations are always harmful. evolution means that a population undergoes changes in its gene frequencies over time.

Present time is part of the mesozoic era. question 7 options: true false