Antigens; they are molecules that are foreign to the body, thus stimulating a response by the b- and t-cells that aim to defend the body against harmful and mostly foreign bacteria.
Polyunsaturated fats. The four types<span> have different chemical structures and physical properties. The bad fats, saturated and trans fats, tend to be more solid at room temperature (like a stick of butter), while monounsaturated and polyunsaturated fats tend to be more liquid (like liquid vegetable oil).</span>
The children have a chance at being homogeneous for that trait. If the father was heterogeneous for the trait the four children will be heterogeneous and only one will be homogeneous for that trait.
Answer:
Explanation:
Nitrogen fixation is a process of fixation of atmospheric nitrogen into forms of nitrogen that can be directly utilized by the plants like nitrates and nitrites. This process is conducted by the soil bacteria.
The farmers rotate the crops with legumes because the roots of legumes shows symbiotic mutualistic association with nitrogen fixing soil bacteria. The soil get rich with the nitrogen element necessary for growth of plants.
