Wind is considered to be an abiotic becomes it

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

Organ systems are composed of organs, organs are composed of tissues, and tissues are composed of cells. this pattern is organized into levels. organization based on levels can be found in what

In the image layer a is the topmost layer layer c contains fossils from the precambrian era larrabee contains dinosaur fossils and layer a contains fossils of mammals which two statements are supported by this evidence