A scientist studies a species of bird. The males and females look very similar
in color, but the males are much larger than the females. What can the
scientist conclude about these birds?
O
A. The males compete to fertilize.
O
B. The birds reproduce asexually.
O
C. The females choose mates.
O
D. The males choose mates.

The answer would be A. The males compete to fertilize. This is proven by the size of the males. Males would compete by fighting or making themselves look as large as possible until the opposing bird forfeits.

Explanation:

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.