Gametes (sex cells) have a. two alleles for each gene (homologous chromosomes).b. twice the number of chromosomes found in body cells. c. two sets of chromosomes. d. one allele for each gene (haploid chromosomes).

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates