Answer:
The answer to the question: There are neurotransmitters that can be both excitatory and inhibitory. Explain how this is possible, would be, Yes, there are some neurotransmitters such as acetylcholine and dopamine, who have both an excitatory and inhibitory effect in other neurons and in cells, and this happens because of the type of receptors they bind to, and the type of cell where they bind.
Explanation:
Neurotransmitters are the messengers, or communication system that the nervous system in general has with itself and with other systems. There are several types of these, and some work both as neurotransmitters and as hormones as well. How they act, where they act, and what kind of response they elicit, depends entirely on the receptors to which they bind, when they are released by a pre-synaptic neuron. Most neurotransmitters are either excitatory, or inhibitory, and some are known as neuromodulators. However, there are two types known today that work as both excitatory and inhibitory: dopamine and acetylcholine. How can either of these act as each of these? Depends on the receptors present on the post-synaptic neuron, or cell, and depends on the type of cell as well. As soon as these two bind to their appropriate receptors, in a specific kind of cell, they will produce the specific response from the cell, either starting an action potential, ir inhibiting it from happening.
Answer:
Quadratus lumborum
Explanation:
Quadratus lumborum, commonly known as back muscle is a posterior abdominal wall muscle. The shape of the muscle is irregular as well as quadrilateral and broader below than above and is the the deepest abdominal muscle.
<u>The muscle originates by the aponeurotic fibers into iliolumbar ligament and internal lip of iliac crest for about 5 centimeters . It then inserts from the lower border of last rib (rib 12) for about the half of it's length and also by the four small tendons from apices of transverse processes of upper four lumbar vertebrae. (L1-L4).</u>
The correct answer is A. Production of spermatozoa
Explanation:
The accessory glands in males include different glands and structures such as the bulbourethral glands, prostate gland, and seminal vesicles that produce different substance to protects or preserve spermatozoa by providing this ith nutrients, and buffers that regulate the pH, besides this, in the case of the seminal vesicles, these transport the spermatozoa and the other fluids. However, it is not a function of the accessory glands to produce spermatozoa as this occurs in the testes that are not part of the accessory glands.
Answer:
Tt and tt
Explanation:
Dominant alleles are written with capital letters.
Recessive alleles are written with lowercase letters.
When an allele is <u>dominant</u>, the individual only needs <u>one</u> copy of it in order for the trait it codes to be expressed.
When an allele is <u>recessive</u>, the individual needs to have<u> two </u>copies of it in order for the trait it codes to be expressed.
Given the gene T/t, which determines the ability to taste PTC, there are 3 possible genotypes for a person:
- TT, homozygous taster.
- Tt, heterozygous taster
- tt, homozygous non-taster
The cross between a heterozygous taster with a non-taster would be:
<h2>
Tt x tt</h2>
