6 : يوجد بين الأبقار وجراثيم تعيش في كرشها علاقة متبادلة من نوع تبادلية.
I. أية فائدة تجنيها البقرة من الجراثيم ؟
II. عينوا أفضليتين تكتسبهما الجراثيم من هذه العلاقة المتبادلة مع البقرة.
رمز :
تتغذى الأبقار على العشب المحتوي على كمية كبيرة من السيللوز (سكر معقد يبني ج. لا يوجد في الجهاز الهضمي للبقرة الانزيم الذي يحلل السيللوز الى سكريات أحادية

Interpret the model. a three-part model with black right-arrows between the parts. left part: a large green apple-shaped component with a w-shaped indentation centered on top. a small blue apple-slice shape sits above the left indentation and an arrow points from the shape to the indentation. a small purple apple-slice shape and arrow sit above the right indentation and an arrow points from the shape to the indentation. middle part: a large green apple-shaped component with a square indentation centered on top. sitting in the left side of the indentation is a blue apple-slice shape with a flat bottom, fused to a purple apple-slice shape with a flat bottom on the right side of the indentation. right part: a large green apple-shaped component with a w-shaped indentation centered on top. an up-arrow is centered above the indentation pointing to a fused blue and purple apple-slice-shaped flat-bottom component sitting above the indentation. assigne "true" or "false" to the end of each statement. the model shows a shape change occurring in the enzyme after the substrate is bound in the active site. t/fthere are two products in this model. t? f there are three substrates in this model. t/f the model shows two different enzymes. t/f

What is the main difference between the central nervous system (cns) and the peripheral nervous system (pns)? .the cns involves the brain and spinal cord, and the pns involves the body nerves. the cns involves the body nerves, and the pns involves the brain and spinal cord. the cns involves sensory neurons, and the pns involves motor neurons. the cns involves motor neurons, and the pns involves sensory neurons.

What type of reaction is photosynthesis