Answer: D
Explanation: when gasoline is burned by the car, it releases gas which pollutes the air.
Answer;
-It belongs to Domain archaea
Explanation;
-Domain Archaea is any of a group of single-celled prokaryotic organisms (organisms whose cells lack a defined nucleus) that have distinct molecular characteristics separating them from bacteria as well as from eukaryotes.
-Eukaryote and archaea (ancient bacteria) both have DNA wrapped around histones to form chromatin.
-Eubacterium (true bacteria) do not contain histones.
-Eukaryotes have multiple linear chromosomes while archaea have a single circular chromosome.
In a point mutation, one single base nucleotide (A, C, T or G) is replaced by a different one. This results in the change of one amino acid in the protein. (A minor change that may or may not affect the overall function of the protein) .a frameshift mutation, one or more base nucleotides are inserted or deleted from the sequence. This shifts the 3 basepair codons resulting in a change in the amino acid sequence that is coded. An entirely different protein (usually nonfunctional) is coded.
Answer:
all are true and i fact checked
Explanation:
The best answer is D.
In active transport, molecules move against a concentration gradient from areas of lower concentration to areas of higher concentration. This happens a lot in neurons. The membrane proteins are constantly pumping ions in and out to get the membrane of the neuron ready to transmit electrical impulses.
In active transport , energy is required to move molecules across the cell membrane. Carrier proteins are needed for this e.g. proteins of the GLUT family which transport glucose molecules across the cell membrane. Carrier proteins are very specific. GLUT proteins will only move glucose molecules and not sodium or calcium. There are hundreds of types of carrier proteins.
