A warm spell during the Ice Age gave early humans a route out of Africa 20,000 years earlier than thought, say scientists who've uncovered a prehistoric tool kit in Arabia. ... Seas in the region would still have been at relatively low, Ice Age levels, making for shorter crossings.
Answer:
D) Sun-hay-rabbit-eagle
Explanation:
the sun gives energy through light rays to hay. Hay then gives energy to the rabbit that eats it. This rabbit then gives energy to the eagle that eats it.
A is right I’m pretty sure
D : the number of generations in one population
<span>The one characteristic of the protein that would support this hypothesis would be protein that contains helix-turn-helix motif and zinc-finger motifs. Transcriptional activator proteins like GAL4 help in the initiation of transcription rate of genes by combining the sequences in the regulatory promoter region. This kind of interactions between proteins is called as activation target.</span>