A nutrition researcher finds that placing young rats on a completely fat-free diet results in abnormal growth, unhealthy skin and fur, and a shortened lifespan. However, if the fat-free diet is supplemented with plant material, then the young rats show none of these symptoms.

Which of the following statements explain why plant material prevents the symptoms?

a. The plant material contains phytoestrogens that stimulate the synthesis of linoleate in the skin
b. Prostaglandin synthesis from linoleate requires inorganic cofactors found only in plant material
c. Ingesting plant material inoculates the rat gut with bacteria that synthesize linoleate
d. Linoleate is an essential fatty acid for animals and is commonly found in plant material
e. Plants express the enzymes required to synthesize linolea.2me

To answer you must fill in the free spaces or choose the correct answer according to the type of question. you can see this animation: the two auricles contract simultaneously, forcing the blood to pass through the auricles are emptied and filled. ventricular systolethe ventricles contract and emptying. the atrioventricular valves are closed / opened. blood is forced to pass into the artery and the artery the semilunar valves of the arteries are closed / open. simultaneously blood begins to flow into the relaxed atria.diastole atrial and ventricularthe blood enters the auricles for if initially the atrioventricular valves are closed, they immediately open. because the ventricles are relaxed, the blood tends to retreat from the aorta and pulmonary artery causing the closure of the valves c) the heart cycle of a person, under normal conditions, has an approximate duration of 0.8 seconds.- how long does the general diastole last? - and the atrial systole? - and the ventricular systole? in spanishel ciclo cardiacopara responder debe rellenar los espacios libres o escoger la respuesta correcta según el tipo de pregunta. puede visionar esta animación: sístole auricularlas dos aurículas se contraen simultáneamente, forzando la sangre a pasar dentro las aurículas se vacían y se llenan. sístole ventricularlos ventrículos se contraen y se vacían. las válvulas auriculoventriculares se cierran / abren. la sangre es forzada a pasar hacia la arteria y la arteria las válvulas semilunares de las arterias se cierran / abren. simultáneamente la sangre comienza a fluir dentro de las aurículas relajadas.diástole auricular y ventricularla sangre entra en las aurículas por las si inicialmente las válvulas auriculoventriculares están cerradas, enseguida se abren. como los ventrículos están relajados, la sangre tiene tendencia a retroceder desde la arteria aorta y pulmonar provocando el cierre de las válvulas c) el ciclo cardíaco de una persona, en condiciones normales, tiene una duración aproximada de 0,8 segundos.- ¿qué duración tiene la diástole general? - y la sístole auricular? - y la sístole ventricular?