a. Amphibians and birds share a more recent common evolutionary ancestor than sharks and birds.
b. Birds and sharks do not share a common evolutionary ancestor.
c. Having a bony skeleton did not provide an evolutionary advantage to sharks or ray-finned fish.
d. Rabbits and primates diverged more recently than crocodiles and birds.
Answer: a. Amphibians and birds share a more recent common evolutionary ancestor than sharks and birds.
Explanation:
A cladogram is a diagrammatic representation of the phylogenetic relationship of recently evolved species with their common ancestors. The relationship is defined on the basis of genetic, molecular, morphological make up of the organisms. The node in the cladogram defines a divergence or difference between the two taxon.
Birds and amphibians share a more recent common ancestor than shark and birds because they can be seen lying closer at the terminal ends of the cladogram.
Answer:
4.6 billion years
Explanation:
phagocytes
complement
antibodies
An antibody is a protein that reacts against an antigen in an organism it would be the best to use as a model for the pill’s function.
They are used by the immune system to recognize and block viruses, bacteria, parasites or fungi.
Each type of antibody defends the body against a specific class of antigen and is made up of basic structural units that have four chains: two light and two heavy.
Therefore, we can conclude that an antibody is a protein that reacts against an antigen in an organism it would be the best to use as a model for the pill’s function.
Learn more about antibodies here: brainly.com/question/22543460
Answer:
antibodies
Explanation:
just took the test and got 100%