What element has 81 protons in the nuclei of its atoms?

How did the appearance of plants in Earth's early history impact the geosphere?

What will happen to a muscle in the body when its nerve supply is destroyed?

What three elements are likely to be found in a sample of soil and rocks?

What happens to a fluid when its temperature increases?

A remote consultation with physicians or other healthcare professionals is called

Can your body make antibodies for pathogens that you have never been in contact with

What allows an organism to better survive in its envirmoment

The ozone hole is largely a consequence of the use of

Choose all the answers that apply. According to the rock cycle, sedimentary rock can change into what? 1. other sedimentary rock 2. igneous rock 3. metamorphic rock

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during the first part of its life cycle. What is the common name of this organism? jellyfish hydra coral anemone