8. Las hojas son las estructuras vegetales en las que por lo general tiene lugar la fotosintesis . Qué características de la mayoría de estas estructuras aumentan al máximo la cantidad de energía luminosa absorbida para ser utilizada en la fotosíntesis? (1) las porosidades del envés (2) su forma amplia y aplanada (3) el tallo de la planta (4) la red de vasos (5) el sistema radicular

Which bone feature is a muscle attachment site rather than a joint surface? acetabulum medial tibial condyle humeral head lateral femoral condyle greater trochanter

Why is myelin important?Check all that apply. Check All That Apply It forms extensions called perivascular feet, which contact the blood capillaries and stimulate them to form a tight seal called the blood- brain barrier. It speeds up signal conduction in the nerve fiber. It produces cerebrospinal fluid. It is formed to assist in the regeneration of damaged fibers. It insulates the nerve fiber.

Regarding nerve action potentials which of the following ions is responsible for depolarization of cell membrane $Na+$ going outside the cell $Na+$ going inside the cell none $K+$ going outside the cell $K+$ going inside the cell

CRISPR technology arose from observations of natural processes that occur in: viruses. fungi. photosynthetic cells. eukaryotic cells. bacteria. Clear my selection

Humans have how many autosomes? 22 pairs 23 pairs 44 pairs 46 pairs 26 pairs Clear my selection

Where is most blood allocated to during intense exercise? The skin Skeletal muscles The brain The heart

Complete the statements below. When muscles contract, they become $\square $ The muscles of the rear end, legs, and feet are called $\square $ muscles. $\square $ muscles move food down the digestive tract. DONE $\square $

9. speeds up heartbeat and increases supply of blood to skeletal muscles $\square $ cortisol epinephrine glucagon insulin melatonin somatotropin

Question 14 (1 point) 4) usten Endotoxins: are secreted by living pathogenic organisms. cause damage like fever and inflammation. have systemic effects. are bound to the membrane of pathogenic organisms. are released from dead Gram negative pathogens.

Which of the following causes an immediate increase in the rates of glandular secretion and peristaltic activity in all segments of the small intestine? Gastroileal reflex Gastroenteric reflex Enterogastric reflex The presence of intestinal juices IDON'T KNOWYET