Put yourself in the role of each of the following people:

How do the diffuse modulatory and point-to-point synaptic communication systems in the brain differ? list four ways?

Vesna [10]

Diffuse modulatory synapses or neuromodulation function different than simple point-to point synapses.

1. Number of postsynaptic neurons

In neuromodulation neuron uses one or more neurotransmitter to regulate several neurons. In Synaptic point-to-point transmission only one particular neuron receives signal from the presynaptic neuron.

2. Neurotransmitter sin neuromodulation (neuromodulators) are not reabsorbed broken down by the pre-synaptic neuron like those in classic synapse. Neuromodulators stay in cerebrospinal fluid.

3. Receptors are also different: the receptors for the neuromodulators are typically G-protein coupled receptors while in classical chemical neurotransmission, they are ligand-gated ion channels.

4. Neuromodulation is a slow process, while classic synaptic transmission occurs fast.

5 0

3 years ago

1. Walking through the forest, you find a large population of toadstools. From your extensive knowledge of the kingdom fungi, yo

Lena [83]

Answer:

No, observed and expected frequencies are different.

Observed frequencies: p2 = 0.56 , 2pq = 0.375, q2 = 0.062

Expected frequencies: p2 = 0.774 , 2pq = 0.211, q2 = 0.014

Explanation:

Given frequency of recessive genotype (q2)= 14/ 1006 = 0.0139

Frequency of recessive allele s (q) = square root of 0.0139 = 0.12

Frequency of dominant allele S (p) = 1-q = 1-0.12 = 0.88

Expected frequency of homozygous recessive genotype = 0.12 x 0.12 = 0.014

Expected frequency of homozygous dominant genotype = 0.88 x 0.88 = 0.774

Expected frequency of heterozygous dominant genotype = 2pq = 2 x 0.88 x 0.12 = 0.211

Observed frequencies in population 2

Observed frequency of homozygous dominant genotype = 308 / 549 =0.56

Observed frequency of heterozygous dominant genotype = 206 / 549 =0.375

Observed frequency of homozygous recessive genotype = 34 / 549 =0.062

Observed frequencies do not match with expected frequencies.

6 0

3 years ago

Courtney is making regular observations of the growth rate of kudzu vines on a ditch in her neighborhood. She isolated and tagge

arlik [135]

Hello. You forgot the results of Courtney's observations. The observations are:

"Tendril # Week 1 Week 3 Week 6

1 1.2 cm 5.9 in 1.2 ft

2 2.0 cm 4.8 in 0.98 ft

3 0.8 cm 3.2 in 0.55 ft

4 0.2 cm 1.6 in 0.35 ft

5 1.5 cm 4.3 in 1.01 ft"

Answer:

Curtney's data show inconsistent units of measure.

Explanation:

Measurement units are ways of representing great physics such as speed, size, time, quantity, weight, among others. These units serve to quantify the matter and allow observations to be made.

It is important to note that the same units of measurement must be evaluated in the same experiment. For example, if we want to evaluate how much a plant can grow in 3 weeks, we have to evaluate the same unit of measure each week. If in the first week we evaluate the growth in centimeters, we have to evaluate the growth in the next weeks also in centimeters.

Courtney did not do this, and assessed the growth of the plants each week with different units of measure, which left her data inconsistent.

3 0

3 years ago

What is the purpose of scientific notation? How is scientific notation represented? Explain

skad [1K]

The purpose of scientific notation is to demonstrate very large or very small numbers, this is what it looks like, 7800000000000 in scientific notation would be 7.8* $10^{2}$ hope this helps

4 0

3 years ago

Read 2 more answers

What type of organism will be found on lowest level of an energy pyramid

snow_tiger [21]

Answer:

Plants

Explanation:

3 0

3 years ago