A tetrad consists of 2 homologous chromosomes each of which is made up of 2 sister chromatids
Neurotransmitters can excite receptors to turn them on and stop them from transmitting.
A neuron releases a signaling chemical called a neurotransmitter across a synaptic gap to influence another cell. Any major body component or target cell that receives the signal may be another neuron, but it could also be a gland or muscle cell. These signals enable you to move your limbs, experience sensations, maintain your heartbeat, as well as receive and process all the information your body receives from other internal body components and your environment. From one neuron (nerve cell) to the following target cell, neurotransmitters transfer chemical signals, or "messages."
The majority of estimates suggest that the neurotransmitter transient lasts only a few hundred to several hundred of microseconds, indicating that post-synaptic activation is marked by a significant degree of non-equilibrium.
Learn more about neurotransmitters here: brainly.com/question/13593873
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Hello!
A polar molecule is where one of the atoms in a molecule has a slight positive charge, and another has a slight negative charge, due to the unequal sharing of electrons.
Water is one of these molecules - the electrons spend more time around the oxygen atom in the center, and less around the hydrogens, so the hydrogen atoms have a slight positive charge, and the oxygen a slight negative.
Therefore, your answer is B, water has a slight negative and a slight positive charge at opposite poles.
Hope this helps!
The zebra's descendence (offsprings) will not be able to produce blood <span>proteins (hypoproteinemia)
It touches the offspring and not the zebra itself because only the sex cells which gives spermatozoids or ovules) are touched.
The main symptom of hypoproteinemia is swelling of the legs, face and other parts of the body due to fluid accumulation loss of muscle mass.</span>
Asexual means by self sexual means from opposite genders
