How many places are there for electrons in the second shell of an atom? The answer is C) 8 electrons
Chromosomes are thread-like structures in which DNA is tightly packaged within the nucleus.
Answer:
The nervous system releases neurotransmitters at synapses at specific target cells & The endocrine system reacts more slowly to stimuli, often taking seconds to days.
Explanation:
The nervous system is very specific with where the neurotransmitters go so they will affect target cells. The endocrine system is slower than the nervous system because the hormones travel through the blood so it takes much longer to reach the designated area.
DNA is made of a double helix of two complementary strands. When replicating, these strands seperate. Each strand of the original DNA then acts as a template for the production of it's counterpart, which is referred to as semiconservative replication.
The parts of the brain of a living organism which perform each of the functions are listed as follows:
- <u>Hypothalamus:</u> it regulates sleep.
- <u>Optic nerve:</u> it connects brain and eyes.
- <u>Cerebellum:</u> it controls balance.
- <u>The frontal lobe:</u> it controls thinking.
- <u>The </u><u>brain</u><u> stem:</u> it controls breathing and heart rate.
- <u>The nucleus accumbens:</u> it is the pleasure center.
<h3>What is a brain?</h3>
A brain can be defined as an organ of soft-nerve tissue that is found within the skull of vertebrates, and it's mainly responsible for the coordination of nervous activities, sensation and intellect in living organisms.
Based on scientific records and information, the two (2) sides of the brain (symmetrical left and right hemispheres) are able to communicate through the corpus callosum.
In conclusion, we can infer and logically deduce that the parts of the brain of a living organism which perform each of the functions are listed as follows:
- <u>Hypothalamus:</u> it regulates sleep.
- <u>Optic nerve:</u> it connects brain and eyes.
- <u>Cerebellum:</u> it controls balance.
- <u>The frontal lobe:</u> it controls thinking.
- <u>The </u><u>brain</u><u> stem:</u> it controls breathing and heart rate.
- <u>The nucleus accumbens:</u> it is the pleasure center.
Read more on brain here: brainly.com/question/1287304
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