Explanation:
Recessive alleles lack the power to express the phenotypic traits of an organism. In order for the specific trait to be expressed, 2 copies of the recessive allele or homogenous recessive genotype is needed in the organism.
Answer:
CGA-UUA-CUA
Explanation:
bc I take 8th grade science and I'm learning the same thing so I think I'm pretty sure this is right
C. Macrophages
When Macrophages approach a foreign pathogen they ingest the pathogens through phagocytosis, the Macrophages show the foreign antigen proteins on their cell surfaces.
The Helper T Cell recognizes the antigen on the surface of the macrophage and starts an immune response to the invading pathogen by sending out a chemical message
After that the B-cells produce antibodies that are specific to the antigens of the pathogens that slow them down so the macrophages can engulf them.
Fossils help scientists date rocks: True
Sometimes younger rock layers are found beneath older rock layers: True
The map of earth has changed over millions of years, but it is now set: False
No fossils from the precambrian era have been found because there were no organisms that time: False
hope these are correct :)
Lungs, lung cells, lung tissues
