343 W/M2 of energy is emitted by the Sun to the Earth. How much actually reaches the Earth's surface?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

When plants use sunlight to make food, the energy of sunlight is

If a checkpoint detects damaged dna, the checkpoint may