Instead of defining life, scientists have decided to describe the characteristics of life not differentiate between living and non-living qualify living things as things that can move qualify living things as highly complex

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring