Which of the following does not include a group of health effects from protists?
a. causes malaria, photosynthesize, cause sickle cell anemia
b. causes amebic dysentery, are detritivores, recycle resources
c. produce oxygen, are food as plankton, cause tokoplasmosis
d. are primary producers, some are parasitic molds

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.

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.