Which duct release pancreatic juice and bile juice into duodenum? The larger duct fuses with the common bile duct (carrying bile from the liver and gallbladder) just before entering the duodenum via a common opening (the hepatopancreatic ampulla). The smooth muscle sphincter of the hepatopancreatic ampulla controls the release of pancreatic juice and bile into […]

What structures in the small intestine are lined with capillaries that absorb nutrients? Villi that line the walls of the small intestine absorb nutrients into capillaries of the circulatory system and lacteals of the lymphatic system. Villi contain capillary beds, as well as lymphatic vessels called lacteals. Which structure of the small intestine is the […]

Which describes the foramen magnum quizlet? The foramen magnum is the opening in the skull, which the spinal chord passes through. What structure goes through the foramen magnum? The foramen magnum is the largest of the cranial foramina. It lies in the occipital bone within the posterior cranial fossa, and allows the passage of the […]

Why would a lack of ozone be harmful to life on Earth? Ozone layer depletion allows more harmful ultraviolet (UV) radiation to reach our planet’s surface. While increased UV radiation is not the cause of global warming, it can lead to skin cancers, cataracts and a suppressed immune system in humans, as well as reduced […]

What is the most common animal in the grasslands? Elephants, bison, cheetahs, gazelles, lions, and tigers are some of the large animals living on grasslands. Rabbits, gophers, prairie dogs, and many bird, lizard, and snake species are some of the small animals that live there as well. Which animals live in grasslands? Herbivorous mammals include […]

What happens during interphase and which phases does it include? Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter […]

What are the three basic variables that make up the life history of an organism? a. life expectancy, birth rate, and death rate. What are factors that influence a species life history strategy? Life-history strategies are based on the characteristics of organisms that affect their fitness. Two environmental factors important in determining the life-history strategy […]

What are the 11 different organ systems? The 11 organ systems include the integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems. How many systems are there in human anatomy? The human body consists of eleven organ systems , each of […]

Why are models used in earth science? Scientific models are used to explain and predict the behaviour of real objects or systems and are used in a variety of scientific disciplines, ranging from physics and chemistry to ecology and the Earth sciences. Why are models so useful in science? Scientific models are representations of objects, […]

What type of neuron is most common in the brain and spinal cord? Multipolar neurons How many neurons are in the brain and spinal cord? While the human brain might not have the mythic 100 billion neurons as long suspected, 86 billion is still nothing to sneeze at. What part of the brain is responsible […]