The oldest planet is Jupiter but how scientists came to that conclusion I’m not sure hope someone else finds out
Answer:
<h2>letter A</h2>
Explanation:Whittaker placed bacteria in their own kingdom, Monera, because of fundamental organizational differences between prokaryotic bacterial cells, which lack membrane-enclosed nuclei and organelles , and the eukaryotic cells of other organisms that possess internal membranes. Plantae, Fungi, and Animalia consist of complex, multicellular eukaryotic organisms that differ from each other in details of cell structure and in how they secure and process energy. Protista is a collection of single-celled eukaryotic organisms and simple multicellular forms, some animal-like, some plantlike.
<h2>letter b</h2>
Molecular evidence, particularly from ribosomal ribonucleic acid (RNA), suggests that the five-kingdom scheme is also too simple. Some biologists believe that Protista should be partitioned into three or more kingdoms. Similarly, kingdom Monera contains two very biochemically distinct groups of prokaryotes: archaebacteria, and eubacteria. A proposed system acknowledges this ancient evolutionary split by creating a higher level of classification, domain, above kingdom. This system distinguishes three domains: Archaea, Eubacteria, and Eukarya (containing protists, plants, fungi, and animals).
Answer:
Populations have variation in traits due to random mutation, crossing over and environmental conditions.
Answer:
its passive transport
Explanation:
The sodium-potassium pump sets the membrane potential of the neuron by keeping the concentrations of Na+ and K+ at constant disequilibrium.
<span>If a child takes large steps which exceeds his or her length, it may mean that he is more advanced or he simply has more walking experience than a normal length walking child.
Increased step length it shows a sign of improvement in the development of walking. In addition, I can say that large steps are reflected more strength and also balance than he had previously been supposed for the infants who are training themselves on how to walk.</span>