<em>Answer:</em>
<em>astigmatism </em><em> </em>
<em>Explanation:</em>
<em><u>Astigmatism</u></em><em> is described as one of the common conditions associated with an eye that leads to developing blurred vision in a person. Astigmatism generally occurs when an individual's cornea i.e, the eye's front cover is being irregularly shaped or at times due to the lens curvature present inside his or her eye. Astigmatism can cause distorted, blurry, or fuzzy vision. </em>
<em><u>As per the question, Nigel is exhibiting symptoms of astigmatism.</u></em>
Biology is a branch of science that studies about life and living organisms. It includes physical and chemical structure, development, and evolution of all living things. It seeks to answer questions about all living things.A biologist may ask about how plants maintain life processes. In Christian biology, biblical knowledge and faith are integrated in learning the evolution of the earth and the living things that consist it. Likewise, it states that God's signature is written in his creation or the living world is a testament of God's actions.
These animals were raised in a controlled environment. Many plants are unable to survive in such a harsh environment. Heredity and environment are both important. Pollution is bad for the environment