Many invertebrates die during the earlier stages of life because
they are a major part of a food chain
they do not have a backbone
they have a backbone
they cannot sense danger

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions