Drag each item to the correct location in order to place the events in the development of plants into the correct order.
1st
2nd
3rd
4th
Options:
Bryophytes become the first land plants
Cyanobacteria become the chloroplast of plants.
Cyanobacteria begin to photosynthesize.
Plants evolve to have vascular tissue to transport water
and nutrients.
Answer:
1st - Cyanobacteria begin to photosynthesize.
2nd - Cyanobacteria become the chloroplast of plants.
3rd - Bryophytes become the first land plants.
4th - Plants evolve to have vascular tissue to transport water and nutrients.
1st - Cyanobacteria begin to photosynthesize.
2nd - Cyanobacteria become the chloroplast of plants.
3rd - Bryophytes become the first land plants.
4th - Plants evolve to have vascular tissue to transport water.
To place the events in the development of plants into the correct order, we need to determine the chronological sequence of these events. Let's analyze the options given:
1. Bryophytes become the first land plants: Bryophytes, which include mosses, liverworts, and hornworts, are considered the first land plants. They lack vascular tissue and reproduce via spores.
2. Cyanobacteria begin to photosynthesize: Cyanobacteria are ancient photosynthetic bacteria that played a fundamental role in shaping Earth's atmosphere. They began photosynthesizing early in the history of life on Earth.
3. Plants evolve to have vascular tissue to transport water: Vascular tissue, consisting of xylem and phloem, is specialized tissue in plants that transports water, minerals, and nutrients throughout the plant. The development of vascular tissue allowed for more efficient water transport and the evolution of larger and more complex plants.
4. Cyanobacteria become the chloroplast of plants: Chloroplasts, the site of photosynthesis in plants, have an interesting evolutionary origin. It is believed that chloroplasts evolved from an ancient endosymbiotic event where a free-living cyanobacterium was engulfed by a eukaryotic host cell.
Now let's reorder the events based on their chronological order:
1. Cyanobacteria begin to photosynthesize: This event likely occurred first, as cyanobacteria were among the earliest organisms to perform photosynthesis.
2. Bryophytes become the first land plants: After the atmosphere started to become oxygenated by cyanobacteria, bryophytes colonized land, becoming the first land plants.
3. Plants evolve to have vascular tissue to transport water: As plants adapted to life on land, they evolved vascular tissue to efficiently transport water and nutrients throughout the plant.
4. Cyanobacteria become the chloroplast of plants: Finally, through an endosymbiotic relationship, cyanobacteria evolved to become chloroplasts within plant cells.
So, the correct order is:
1st: Cyanobacteria begin to photosynthesize.
2nd: Bryophytes become the first land plants.
3rd: Plants evolve to have vascular tissue to transport water.
4th: Cyanobacteria become the chloroplast of plants.