Answer: A = DNA, B = RNA, C = DNA, D = RNA, E = RNA, F = DNA
Explanation:
hope this helps :)
A neuromuscular junction (or myoneural junction) is a chemical synapse formed by the contact between a motor neuron and a muscle fiber.[1] It is at the neuromuscular junction that a motor neuron is able to transmit a signal to the muscle fiber, causing muscle contraction.
Muscles require innervation to function—and even just to maintain muscle tone, avoiding atrophy. Synaptic transmission at the neuromuscular junction begins when an action potential reaches the presynaptic terminal of a motor neuron, which activates voltage-dependent calcium channels to allow calcium ions to enter the neuron. Calcium ions bind to sensor proteins (synaptotagmin) on synaptic vesicles, triggering vesicle fusion with the cell membrane and subsequent neurotransmitter release from the motor neuron into the synaptic cleft. In vertebrates, motor neurons release acetylcholine (ACh), a small molecule neurotransmitter, which diffuses across the synaptic cleft and binds to nicotinic acetylcholine receptors (nAChRs) on the cell membrane of the muscle fiber, also known as the sarcolemma. nAChRs are ionotropic receptors, meaning they serve as ligand-gated ion channels. The binding of ACh to the receptor can depolarize the muscle fiber, causing a cascade that eventually results in muscle contraction.
Neuromuscular junction diseases can be of genetic and autoimmune origin. Genetic disorders, such as Duchenne muscular dystrophy, can arise from mutated structural proteins that comprise the neuromuscular junction, whereas autoimmune diseases, such as myasthenia gravis, occur when antibodies are produced against nicotinic acetylcholine receptors on the sarcolemma.
The correct choice is D.
A karyotype is the layout of chromosomes, in size order from largest to smallest. These chromosomes are ALWAYS in pairs, meaning that it would be easy to notice which of the 23 chromosome pairs have 3 chromosomes instead of the usual pair.
Answer:
The parts of the biodome that contain carbon are known as the biosphere.
Explanation:
•This is because a biodome is a form of a scientific model that is established to illustrate or simulate a certain environment, including the area which contains both living things and nonliving things while observing their interaction.
•Both plants and humans are in biospheres, and they both make use of carbon dioxide to function for photosynthesis and respiration.
Hence, The parts of the biodome that contain carbon are known as the biosphere.
Answer:
Explanation:
The Liver Makes Bile
During digestion, your body takes everything your body needs from the food you eat. Bile is the digestive juice produced by the liver,it helps the body absorb fat into the bloodstream.
plz mark as brainliest