Achemical spill has just killed off all the algae in a part of the open ocean. how will this affect the food webs in that part?

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks