A type of trilobite is used as an index fossil these fossils were made about 540 million years ago a scientist finds a trilobite fossils in layer 5 apex

When carrying out the Gram stain procedure, adding too little or too much alcohol to the sample is a common mistake. Suppose a student added too little alcohol to a sample of Gram-negative bacteria. What would she observe? Why?

Does baking soda contain starch

This type of burn is characterized by redness, and damages only the outermost layer of the skin.

On what basis does gel electrophoresis separate dna segments

Which of the following processes occurs in eukaryotic gene expression? RNA polymerase requires tRNA to elongate the molecule. mRNA, tRNA, and rRNA are translated. A cap is added to the 5 end of the mRNA.

Why do snails contribute to the decomposition cycle?

After suffering an accidental brain injury, Kira has difficulty walking in a smooth, coordinated manner. It is likely that she has suffered damage to her:

What causes the patterns in the Chladni plates to differ from one another

Sugar changes into energy in a. golgi bodies b. mitochondria c. nucleus d. nucleolus

In facilitated diffusion, the carrier protein has equal affinity for the molecule being transported on both sides of the membrane.