1. anaphasespindle fibers pull back to the centromeres separating the sister chromatids, 2 sets of chromosomes are present
2. interphasecell grows, DNA is copies, organelles replicate
3. metaphasechromosomes line up in the middle of the cell on spindle fibers
4. telophasenuclear envelope forms, chromosomes unwind, spindle fibers dissolve
5. prophase chromosomes are visible, nuclear envelope breaks down, spindle fibers from between centrosomes
Answer:
Un terremoto con la misma magnitud y profundidad podría causar daños drásticamente diferentes dependiendo de la vulnerabilidad de la exposición. Por ejemplo, un terremoto M6 en California o Japón podría causar muy poco daño debido a las estrictas disposiciones sísmicas de los códigos de construcción. Mientras se encuentre en un país del tercer mundo, el daño podría ser catastrófico y se podrían perder millones de vidas.
Explanation:
¡Espero que esto haya ayudado!
<span>Children's response to a chronic health condition largely depends on age and environment. Along with the support of their parents and their friends.</span>
Answer:
This question lacks options, the options are:
a. Presynaptic; Ca2+ ions
b. Postsynaptic; Ca2+ ions.
c. postsynaptic; neurotransmitters
d. presynaptic; neurotransmitters
e. dendritic; neurotransmitters
The correct answer is d. Tetrahydrocannabinol, the active ingredient in marijuana, binds to receptors located in the <u>presynaptic</u> terminals of certain brain neurons. It lowers the likelihood that these neurons will release <u>neurotransmitters</u>
.
Explanation:
Tetrahydrocannabinol is the most abundant cannabinoid in most cannabis varieties and has the most potent psychoactive effect. Conventional neurotransmitters are water-soluble substances stored in small vesicles at the thin ends of the axon (presynaptic terminals). When a neuron generates an impulse by sending an electrical signal along the axon to the presynaptic terminals, the neurotransmitters are released from the vesicles, diffuse through a narrow intercellular space (synaptic cleft) and interact with the receptors on the surface of the recipient neuron (postsynaptic neuron). Cannabinoids cause a decrease in the release of neurotransmitters from the presynaptic terminal through the inhibition of Ca++ channels. This signaling is mediated by the βγ subunit of the G protein. The βγ subunit of the G protein inhibits the Ca channels of type N and P / Q, which are the majority in presynaptic neurons.
Answer:
Heat is produced in the process of the formation of Ozone and this heat is responsible for temperature increases from an average -60°F (-51°C) at tropopause to a maximum of about 5°F (-15°C) at the top of the stratosphere. This increase in temperature with height means warmer air is located above cooler air.
Explanation:
