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

Which of these is a major trend in land plant evolution? a) the trend toward smaller size b) the trend toward a gametophyte-dominated life cycle c) the trend toward a sporophyte-dominated life cycle d) the trend toward larger gametophytes

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?