O The yeast cell mutated the gene to it compatible.
Answer:
Our immune system produces antibodies against that antigen of pathogen.
Explanation:
Injecting an antigen from a pathogen would help our immune system memorize the infection and protect our body from causing of the disease because our immune system produces antibodies against that antigen so when the pathogen enters our body these antibodies attack on that and prevent them of causing infection in the body so that's why injecting an antigen has to be done from the childhood to prevent diseases.
Answer: ammonia
Explanation: Nitrogenous wastes in the body tend to form toxic ammonia, which must be excreted. Mammals such as humans excrete urea, while birds, reptiles, and some terrestrial invertebrates produce uric acid as waste. Uricothelic organisms tend to excrete uric acid waste in the form of a white paste or powder
Cells —-> Tissues
Tissues ——> Organs
Organs ——> organ systems
Organ systems ——> organism
Organisms ——> populations
Populations ——> community
Communities——-> ecosystem
Ecosystems ——-> biomes
Biomes ——-> biosphere (aka Earth!)
Answer:
plants
Explanation:
plants contain carbon In form of carbohydrates and heterotrophs eat plants containing carbon which In turn will give them energy
