The scientific method- Form an hypothesis
conduct an experiment to test that hypothesis
So yes researchers could review his experiment and his theory to detect any possible flaws.
Scientists do this all the time
Answer:
The morphological features that embryos of various animals share between each other the greater the likelihood they are derived from a common ancestor
Explanation:
Answer:
The correct option is C) The three species share many characteristics and are biologically related.
Explanation:
A genus can be described as the rank in biological system of classification which stands just above the rank of species. The organisms belonging to the same genus are more closely related to one another than to the organisms of the upper rank. Organisms is a genus show many shared characteristics and are biologically related to one another. Hence, we can say that the species Ursus arctos, Ursus mantimus and Ursus americanus are all members of the same genus share many characteristics and are biologically related to one another.
Answer:
C. lack the enzymes to reduce N2 and NO3- to NH4+
Explanation:
Nitrogen fixation is a process by which atmospheric nitrogen (N2) is converted into ammonia (NH3) so that can be used in metabolic pathways (e.g. biosynthesis of macromolecules). Nitrogen fixation is performed by Archea and bacteria such as Azotobacter (usually in symbiosis with Leguminosa plants).
Nitrogen assimilation is a process in which organic compounds are made from inorganic nitrogen.