What is an organelle? a small structure within the cell that serves specialized functions. a specialized protein that speeds up chemical reactions. packets within the cell cytoplasm that contain powerful enzymes. the semipermeable membrane surrounding a cell.

Apea plant that is heterozygous for the tall phenotype can produce short offspring when self pollinating. which of the following explains why this occurs? a. segregation of allels b. condominance of traits c. polygenic expression of traits d. independent assortment of alleles

Consider the skeleton. which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?