Which of the following describes a likely reason for organisms of the same species to group together?

a pod of dolphins lives together to maintain order and hierarchy.
a pack of wild dogs works together to catch enough food.
a group of meerkats take turns watching for predators while the others are foraging.
a school of fish swims together to look like a larger fish.

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

80 points pls 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?

Ecology can best be described as the study of what