Answer: The DNA double helix is held together by two types of bonds,
covalent and hydrogen.
Explanation: Covalent bonds occur within each linear strand and strongly
bonds the bases, sugar and phosphate groups.
B
Please mark my answer as brainliest
Nuclear pharmacy, also known as radiopharmacy, involves preparation of radioactive materials for patient administration that will be used to diagnose and treat specific diseases in nuclear medicine. ... The majority of diagnostic nuclear medicine investigations are performed using technetium-99m.
Answer:
c number is the right answer of the following
Answer: FALSE
Explanation: Short reflexes(Intergraded by the ENS) are also known as local reflexes,they occur with the neurons if the enteric nervous system that are housed within the gastrointestinal tract wall.
They involve the direct stimulation of a postganglionic fiber by the sensory neurone.
Long reflexes (Intergrades by the CNS) occurs when sensory inputs from receptors is related to the central nervous system in response to stimulation,they involve feedforward reflexes and emotional reflexes also called cephalic reflexes because they originate in the brain.
From the question,there is involvement of chemoreceptors and mechanoreceptors inputs being relayed to the CNS which shows long reflex action.
