Before the introduction of the yellow crazy ant to christmas island, land crabs ate many plant seedlings on the forest, and the forest floor stayed relatively clear of plants. as the crab population declined, plant seedlings flourished. the forest floor became covered with plants. which statement best describes what occurred on the forest floor? (points : 1)
primary succession occurred because the ant was a new species that changed the ecosystem.
secondary succession occurred because the organisms on the forest floor changed.
climax vegetation occurred because the seedlings finally had a chance to grow.
primary succession occurred because more plant life in the ecosystem was healthier.

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.

Me brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula.5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects.8. describe the planets’ orbits around the sun.9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets.13. what causes the seasons?

What is one reason why transpiration is important in plants? question 19 options: it produces food from the sugar in the plant cells. it enables the flow of water out of the plant. it produces carbon dioxide in the leaves of the plant.