If a galaxy is located 200 million light years from Earth, what can you conclude about the light from that galaxy? (2 points) Group of answer choices

The light will take 200 million years to reach Earth.

The light will travel a total of 200 million kilometers to reach Earth.

The light will travel 200 million kilometers per second to reach Earth.

The light will travel a total of 300,000 kilometers to reach Earth.

b. the carbon cycle ensures living things have a source of hydrogen

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.