Answer:
After a motion is proposed, if the motion requires a second and none is immediately offered, the chair of the body will usually ask, "Is there a second?" If no second is obtained within a few moments of proposing the motion, then the motion is not considered by the assembly, and is treated as though it was never offered. Such a motion may be introduced again at any later time.
Explanation:
A stem cell that has the potential to differentiate into any cell derived from either the endoderm, ectoderm, or mesoderm lineage or into extraembryonic tissues, such as the placenta, has the property of being:
Answer:
Totipotential.
Explanation:
There are different cell potencies. A totipotent cell is a stem cell that can divide itself and differentiate in any cell that the organism needs. That is to say, endodermal cells, ectodermal cells, mesodermal cells, or extra-embryonic tissues. As cells differentiate themselves, they can gradually lose their potential. The cell's category that follows is pluripotent cells. These are stem cells that can only differentiate into ectoderm cells, endoderm cells, or mesoderm cells. Then we have multipotent cells, which differentiate into tissue cells. The next category is oligopotent cells. They give a limited number of specific cells, and lastly unipotent cells, only differentiate in one type of cell.
_The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of the postsynaptic membrane to Na and K
Complete question:
The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of the postsynaptic membrane to Na and K
TrueFalseAnswer:
TRUE
Explanation:
The Acetylcholine neurotransmitter is released from the presynaptic cell by the process of exocytosis.
Once the molecule is in the intercellular space, it moves forward the postsynaptic membrane to join its receptor in the motor plate.
Once the joining has occurred, the receptor acquires a channel shape allowing the ion transference that will make possible the modification of the action potential. Ions traffic will consist of the pass of sodium and calcium to the interior of the cell and potassium to the exterior. Quantitatively, the interchange Na-K is the most significant.
K+ follows a concentration gradient, while Na+ follows an electrochemical gradient. The interchange results in an increase of positive charges in the interior of the muscular cell.
Whenever there is a sufficient number of Acetylcholine receptors are active, the depolarization threshold of the motor endplate is exceeded. This activates an action potential that extends to the rest of the muscle membrane.
a substance has a volume of 20 mL and a destiny of 2.5 g/mL what is its mass
List and briefly describe the chemical sequence of events in the fight-or-flight response to a threatening situation from the binding of epinephrine at the receptor site to readiness for another situation.
Answer:
Binding taking place at the receptor site
G protein activates in the cell membrane
Conversion of GDP → GTP
Activation of adenylate cycles
Cyclic production of AMP → ADP
Initiation of the desired reaction in regard to the original message
Cyclic restoration of AMP → ATP
Explanation:
The description of the mechanism:
Right off the bat, epinephrine attaches to a molecule called a receptor (beta-adrenergic protein).
G protein, which is found on the inner side of the plasma membrane, is activated when epinephrine binds to it.
The GDP-carrying Alpha subunit of G protein is isolated during activation. After that, the GDP is translated to GTP.
Adenylate cyclase is then activated by GTP.
The only enzyme that can catalyze the transformation of ATP to CAMP is adenylate cyclase (Cyclic adenosine monophosphate). As a result, the CAMP molecule (secondary messenger) is produced.
CAMP stimulates protein kinase A, and the cycle repeats till the glycogen phosphorylase enzyme is triggered.
After that, the cyclic amp is brought back and restored.
Is it a good idea for humans colonize mars pls real answers :)
Answer:
I believe yes and no at the same time
Explanation:
If we do end up colonizing Mars, Earth could slowly get better as time goes on, but when we do colonize Mars, wont we just do the same thing we did to Earth?
Answer:
Yes it could be, here are the pros.. Colonizing Mars is one of the most promising backup plans for humanity . Mars is relatively close to our Earth . Colonizing Mars may become possible in just a few decades . Many celebrities support those plans . Many scientists advocate for this kind of backup plan . Extraction of additional natural resources . May help with the search for other life forms . We could learn as global human species . Humanity needs challenges to progress . Knowledge is power . May help to mitigate the overpopulation problem on Earth . Colonizing Mars is an image project . Future generations would be able to adapt quite quickly on Mars . May be a good long-term investment for institutional investors
But there are also some cons.. Colonizing Mars is extremely expensive . It takes a while to travel to Mars ; Lack of water may become a serious problem . Plenty of insecurity involved in this plan . Completely different living conditions . Humans need protective equipment before going outside . It’s freezing cold on Mars . Some people have to make the beginning . May not be justifiable from an ethical standpoint . Colonizing Mars may conflict with religion . Money can be better used to solve our problems on planet Earth . Some scientists believe that efficient live on Mars will not be possible . Quality of life on Mars would be much lower . Rather insecure food supply . Radiation may become a problem . Still unclear if living on Mars is sustainable . We would alter the balance in our universe . Colonizing Mars can be dangerous . Space exploration implies significant pollution . Other life forms may not be welcoming towards us humans . Short-term costs vs. long-term gains
In conclusion, no it would not be a good idea.
In fruit Flies a white eyed female is crossed with a red eyed male. What are the changes the offspring will be a white eyed male?
Answer:
the chances of the offspring having white eyes is 50%
Explanation:
i used a punnet square to calculate the output:)
Answer:
25%
Explanation:
There's a 50% chance of the offspring being male & 50% chance female. The genotypes must be co-dominant otherwise their question doesn't give enough information to get an anwser. Also a 50/50 chance of red/white, so added together a 25% chance.
Also, the funny thing is that remember this from 7th grade so you must be reviewing things that evreyone learned a long time ago but forgot.
7. Scrie metoda corectă de separare a substanțelor corespunzătoare următoarelor
amestecuri:
Amestecuri
Metode de separare a amestecurilor
Boabe de fasole și apă
Plante medicinale în ceai
Resturi menajere din chiuvetă TE ROG REPEDE DAU COROANA LA PRIMUL CARE RASPUNDE‼️‼️‼️
Answer:
por favor, ingles para bio
Explanation:
I NEED HELP ASAP
Describe a cause of aerosol (particulate matter) pollution; then briefly explain its effect on human health.
A major cause of aerosol pollution is the burning of fossil fuels, such as coal, oil, and natural gas for transportation, energy production, and industrial processes.
What is aerosol pollution?Aerosol pollution is also known as particulate matter pollution. It refers to the presence of tiny solid and liquid particles which are known as particulate matter, in the air. These particles can come from a variety of sources, including vehicle exhaust, industrial processes, construction activities, wildfires, and dust storms.
Aerosol pollution can various harmful effects on human health, as the tiny particles can easily penetrate deep into the lungs and bloodstream when inhaled. Exposure to high levels of aerosol pollution has been linked to a range of health problems, including respiratory and cardiovascular diseases, cancer, and premature death.
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Drag each label to the correct location.
Annie wants to study the effect of glucose on bacterial colonies. She grows two colonies of bacteria—one with glucose present in the environment and one in an environment without glucose. Categorize the statements about the experiment as either hypotheses or observations.
Glucose may cause
an increase in
bacterial growth.
The bacterial colonies grown
without glucose don’t have
capsules around their cells.
Bacterial growth in the
glucose environment
increased rapidly and
then stopped after
some time.
Increased glucose may
lead to capsule
formation in bacteria.
Reset Next
Answer:
* Glucose may cause an increase in bacterial growth - HYPOTHESIS
* The bacterial colonies grown without glucose don’t have capsules around their cells - OBSERVATION
* Bacterial growth in the glucose environment increased rapidly and then stopped after some time - OBSERVATION
* Increased glucose may lead to capsule formation in bacteria - HYPOTHESIS
Explanation:
In an experiment, a HYPOTHESIS is a predictive and testable statement that aims to answer a scientific question while an observation is made based on the results obtained.
According to this question, Annie wants to study the effect of glucose on bacterial colonies. She conducted the experiment by growing two colonies of bacteria - one with glucose present in the environment and one in an environment without glucose. Based on this experiment, the following statements are categorized as:
- Glucose may cause an increase in bacterial growth is a HYPOTHESIS
- The bacterial colonies grown without glucose don’t have capsules around their cells is an OBSERVATION
- Bacterial growth in the glucose environment increased rapidly and then stopped after some time is an OBSERVATION
- Increased glucose may lead to capsule formation in bacteria is a HYPOTHESIS
What is one type of light that can be used for photosynthesis
Answer:
The majority of green light is useful in photosynthesis. The relative quantum efficiency curve (Photo 1) shows how efficiently plants use wavelengths between 300 and 800 nm. Green light is the least efficiently used color of light in the visible spectrum.
g Cells called ________ influence development by controlling the fate of other cells in their local environment
Answer:
Neighboring Cells
Explanation:
Neighboring Cells are known to be the type of cells that influence development by controlling the fate of other cells in their local environment.
Typically Neighboring cells through the process often referred to as Induction simply influence the development of other cells nearby or in their local environment. This process of cell influence is either by direct cell-cell contact or through the release of practice chemical signals.
Hence, in this case, the correct answer is "Neighboring Cells."
You have formulated a hypothesis. Pineapples contain more vitamin C. than oranges. to test this hypothesis you measure vitamin C levels in 20 oranges and 20 Pineapples from trees that were grown in the same orchard under the environmental conditions, ( temperatures, rain, sunlight) select all the statements that are true about this experiment
a. The independent variable is temperature
b. the control group in the experiment is the oranges
c. The type of fruit is a controlled variable
d. The dependent variable is the vitamin C levels in the pineapples and oranges
Answer:
d. The dependent variable is the vitamin C levels in the pineapples and oranges.
Explanation:
Select all the statements that are true about this experiment.
a. The independent variable is temperature. NO, temperature, as well as rain and sunlight are controlled variables and are not being evaluated in the experiment.
b. the control group in the experiment is the oranges. NO, there is no control group in this particular experiment.
c. The type of fruit is a controlled variable. NO, the type of fruit is the independent variable.
d. The dependent variable is the vitamin C levels in the pineapples and oranges. YES. According to your hypothesis, the vitamin C levels depend on the type of fruit.
formula to calculate marginal rate of substitution
Answer:
(MRSxy) = ∆Y/ ∆X
Explanation:
Maintaining high global biodiversity is important to provide ecosystem services to humans. Describe one cultural ecosystem service provided by diverse ecosystems.
Answer:
Ecosystem services of provision or supply
Explanation:
Ecosystem services
When talking about ecosystem services, we are referring to the benefits that ecosystems provide us. There are four types of ecosystem services:
Provision or supply:These are the products obtained by nature to be used or consumed, directly or with previous processing. Among them, we might mention food, clear freshwater, fertile soils, geotic materials (such as salt), raw materials (that can be used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, among others. Provisioning service has an impact on the economy, as many of these products are used to commercialize.
Regulation:Refers to ecological processes that improve life. Among others, we might mention climate regulation, CO² absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil fertility maintenance, waste recycling, pests/plagues control, etc.
Cultural:Refers to not the material benefits. Ecosystems also provide a recreational place or area to spend time, to learn, provide a spiritual/religious space, are a source of inspiration. Ecosystems are considered to be cultural patrimony. Ecosystems are the source of scientific knowledge.
Support:Involves ecological processes needed for the production of the other three previously mentioned services. There are five different support services:
→ Soil formation
→ Photosynthesis
→ Primary production
→ Nutrients cycles
→ Water cycle
Under certain circumstances, regulation services can also be considered support services.
Support service affects human beings indirectly, or direct but causing an effect in a long-term period.
How is a lake succession different from the succession of an open field?
Answer:
Lake Succession (Research suggests a different model: a lake may undergo hundreds of years with little succession, with brief episodes of rapid change.) 1.An open lake or pond experiences a drought of one or more decades and the water level falls.
Explanation:
: propels food through the digestive tract. : lines internal and external body surfaces. : conducts electrical impulses. : transports oxygen to the body tissues. : functions in secretion and absorption. : pumps blood. : stores fats and minerals.
Answer:
1. Muscle tissue.
2. Epithelial tissue.
3. Nervous tissue.
4. Connective tissue.
5. Epithelial tissue.
6. Muscle tissue.
7. Connective tissue.
Explanation:
A tissue can be defined as a group of cells that are structurally similar and in close proximity. Tissues are generally responsible for performing specific functions in living organisms such as humans, animals and plants. Therefore, tissues in living organisms function together as a unit.
There are four main types of tissues and these includes;
I. Connective tissue.
II. Epithelial tissue.
III. Muscle tissue.
IV. Nervous tissue.
In this scenario, the various types of tissues are matched with their functions as follows;
1. Muscle tissue: propels food through the digestive tract. It is mainly performed by peristalsis.
2. Epithelial tissue: lines internal and external body surfaces. It also referred to as epithelium and it comprises of sheets of cells.
3. Nervous tissue: conducts electrical impulses. A neural circuit can be defined as a group of neurons in the body of a living organism which are interconnected by synapses to perform specific functions when they're activated.
4. Connective tissue: transports oxygen to the body tissues predominantly through the Erythrocytes (red blood cells).
5. Epithelial tissue: functions in secretion and absorption.
6. Muscle tissue: pumps blood.
7. Connective tissue: stores fats and minerals.
Some tRNAs contain inosine, which can base pair with A, C, and U. Why might this be advantageous with regards to the genetic code
The tRNAs contain I sound that base pair A C U advantageous to the species rabbit.
What is tRNA?A form of RNA molecule called transfer ribonucleic acid (tRNA) aids in the translation of a messenger RNA (mRNA) sequence into a protein.
Translation, which creates a protein from an mRNA molecule, uses tRNAs at particular locations on the ribosome. A protein's amino acid composition is determined by codons, which are three-nucleotide mRNA sequences.
Every codon corresponds to a distinct amino acid, and every codon is accepted by a particular tRNA. The three hairpin loops that make up the tRNA molecule's characteristic folded structure give it the appearance of a three-leafed clover.
Therefore, The tRNAs contain I sound that base pair A C U advantageous to the species rabbit.
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Deer are eating Mr. Thompson's rose bushes. He puts a new deer repellent point on half of his rose bushes and then waters them. He uses the same amount of water on the other half of his rose bushes but does not put the repellent on them. What is the control group for his experiment?
A: the rose bushes with deer repellent
B: the rose bushes without the deer repellent
C: the amount of water used
D: the type of brush used
Answer:
B. The rose bushes without the deer repellent
Explanation:
In an experiment, the control group is often the group that is not exposed to the independent variable.
The control group is usually used for comparison between it and the experimental groups.
In this experiment, the rose bushes without the deer repellent are the control group.
As the control group, these rose bushes will be compared to the ones that have deer repellent.
The correct answer is B. The rose bushes without the deer repellent
In a eukaryotic cell in mitotic S-phase, a spontaneous DNA double-strand break occurred due to replication fork collapse. Genetic analysis indicates that the break was repaired by a non-crossover mechanism resulting in a stable genome. The DNA repair process responsible for this outcome was:
Answer: The DNA repair process was called recombination repair.
Explanation: A sister or homologous chromatide is used to generate recombination and be repaired in this sort of cases.
Which shows the correct order of processes for fungi to reproduce sexually
Answer:
C
Explanation:
You make two agar plates: one is a nutrient agar plate (plate A) that contains histidine and penicillin. The other is a glucose salts agar (plate B) that also contains penicillin. You inoculate a sample onto both plates using replica plating technique, incubate the plates, and compare the growth after 48 hours. There are 12 colonies on the nutrient agar plate and 11 colonies on the glucose salts medium. Which of the following statements is INCORRECT?
a. The colony that is missing from plate B is an auxotroph that cannot synthesize histidine.
b. The prototrophs are resistant to penicillin but the auxotrophs are sensitive to this antibiotic.
c. Prototrophs and auxotrophs in this experimeſit are resistant to penicillin.
d. Approximately 92% of the bacteria in the original sample are prototrophs.
e. This experiment describes indirect selection of a mutant.
A biologist grows bacterial cultures to see if there is a relationship between time and growth rate. Here are the data. Which hypothesis test would you use to see if there a relationship between growth rates and time
Answer:
Direct relationship.
Explanation:
There is direct relationship between growth rates and time which means growth rate of organism increases with the passage of time. Direct relationship means if one increases the other automatically increases and if one decreases, the other also decreases. The growth of bacteria becomes double when more time passes and vice versa. After every 20 minutes, the population of bacteria becomes double.
this is an easy science question please help
Assume that a flood washed out all of the plants in a large area along the bank of a river. It left behind
nothing but soil. How will ecological succession occur in this area?
Answer:
ecological succession in this area will washout and more danger to many citizens on that area.
Fast environmental change can be caused by and
I mean global warming is pretty fast ngl
The atmosphere has become less polluted over time.
Please select the best answer from the choices provided
True or false
Answer:
False your answer is = False
Will mark brainlist if answer is correct
Answer:
A. Magnetic field
Explanation:
Hope this helps
what is evolution?...
Answer:
Evolution is an adjustment of the heritable attributes of natural populaces over progressive ages. These attributes are the outflows of qualities that are given from parent to posterity during generation. There are also three main types of evolution: divergent, convergent, and parallel evolution.
Explanation:
Question 1 Negative Forcings: increase the amount of sea ice at the north pole for instance. O increase the growing season. increases the amount of energy in the Earth's budget. decrease the amount of energy in Earth's energy budget.
Answer:
increases the amount of energy in the Earth's budget.
Explanation:
Increase occurs in the amount of sea ice at the north pole leads to increases the amount of energy in the Earth's budget because this sea ice reflects the solar radiation back to space. Sea ice has a bright surface which causes 80 percent of the solar radiation reflected back into space. As sea ice melts in the summer, it exposes the dark ocean surface which leads the ocean to absorbs 90 percent of the sunlight which heat up the oceans, and increase in the temperature occurs causes more melting of ice so increasing sea ice is good for the earth.
If a heterozygous type A (ABO blood type) male crossed with a type O female, what would be the phenotypic ratio of type A: type B: type AB: and type O in the offspring?
Answer:
2/4 A and 2/4 O
Explanation:
Suppose a new species of shark is discovered, and the dorsal fin length is found to be determined by additive alleles at three independently assorting loci (A, B, and C). The dorsal fin length of aabbcc sharks is 12 cm, and the dorsal fin length of AABBCC sharks is 30 cm. Assuming that the alleles contribute equally, what will be the length (in cm) of the dorsal fin of an animal with genotype AAbbcc
Answer:
The length of the dorsal fin of an animal with genotype AAbbcc is 18 cm
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.