What allows members of the same species to have different characteristics

Fossils of lobe-finned fishes, which are ancestors of amphibians, are found in rocks that are at least 380 million years old.

Which statement is correct? The number of electrons of a neutral atom always equals the number of protors Aomic weight is identical to atomic mass The number of neutrons always equals the number of protons The number of neutrons always equals the

The structure of DNA resembles a twisted ladder. Which structural components form the rungs of the ladder? deoxyribose sugars phosphate groups nitrogenous base pairs ribosomes

Does commensalism involve abiotic factors or biotic factors?

In the context of an explanation of how human growth occurs, a student is explaining to a colleague the necessity and roles of different types of RNA in protein synthesis. Which type of RNA is a result of the process of transcription?

Describe three abiotic factors that influence this ecosystem

How are hydrogen bonds different from covalent bonds? A) The atoms in hydrogen bonds have valence electrons B) The compounds that result from hydrogen bonds contains carbon C) Covalent bonds are organic D) Hydrogen bonds are weaker than covalent

1. Nguyen's central idea about dams is a. they impact communities in negative ways as well as positive ways. b. they are worthy of Alvarado's praise because of their environmental impact. C, they are not worth building, d.

Steps of translation biology?

How does a wolf get energy from the Sun