Answer:
It's Enkephalins.
Enkephalins are small peptides that can serve as neurotransmitters in the brain. Enkephalins act to attenuate substance P release in the dorsal horn of the spinal cord and inhibit afferent pain fibers.
What are the roles of the chloroplasts and mitochondria?
Answer:
Explanation:
Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They're responsible for capturing light energy to make sugars in photosynthesis.
Calculate the equilibrium genotype frequencies from a population with allele frequencies p=.25 and q=.75
There are 6.25% homozygous dominant people (AA), 37.5% heterozygous people (Aa), and 56.25% homozygous recessive people (aa).
How to determine equilibrium genotype frequencies?In a population with two alleles, p and q, the frequency of p and q must add up to 1, or 100%. In this case, p = 0.25 and q = 0.75.
Using the Hardy-Weinberg equation, we can calculate the expected frequencies of the three possible genotypes: AA, Aa, and aa. The equation is:
p² + 2pq + q² = 1
where p² represents the frequency of the AA genotype, 2pq represents the frequency of the Aa genotype, and q² represents the frequency of the aa genotype.
Substituting the given values of p and q:
(0.25)² + 2(0.25)(0.75) + (0.75)² = 1
0.0625 + 0.375 + 0.5625 = 1
Therefore, the expected frequencies of the three genotypes are:
AA = p² = (0.25)² = 0.0625
Aa = 2pq = 2(0.25)(0.75) = 0.375
aa = q² = (0.75)² = 0.5625
So in this population, we would expect to see 6.25% homozygous dominant individuals (AA), 37.5% heterozygous individuals (Aa), and 56.25% homozygous recessive individuals (aa).
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Which of the following layers of the atmosphere has the coldest temperatures?
Answer:
Mesosphere
Explanation:
The mesosphere is the layer of the atmosphere that protects the Earth from meteoroids.
EASY 50 POINTS!!!!!!!! PLEAAASEEE ANSWER AS SOO AS POSSIABLE
Answer:
1 is a
2 is c
3 is d
4 is e
5 is b
Answer:
A is Population. B Gene. C Species D Heterozygous. E Allele
Please help me with this to fill in the black correct answers. This is specifically anatomy and physiology science
1. The reproductive system has both endocrine and exocrine functions. The exocrine function is stimulated by this hormone produced in the anterior pituitary______ and produces this in the female _____.
2. The endocrine function is stimulated by this hormone in the anterior pituitary_____ and produces this in the female_____
3. The reproductive system has both endocrine and exocrine functions. The exocrine function is stimulated by this hormone produced in the anterior pituitary______ and produces this in the male____
4. The endocrine functions is stimulated by this hormone in the anterior pituitary _____ and produces this in the male_____
1. The exocrine function is stimulated by this hormone produced in the anterior pituitary: follicle-stimulating hormone (FSH), and produces ova (eggs) in the female.
2. The endocrine function is stimulated by this hormone in the anterior pituitary: luteinizing hormone (LH), and produces estrogen and progesterone in the female.
3. The exocrine function is stimulated by this hormone produced in the anterior pituitary: luteinizing hormone (LH), and produces sperm in the male.
4. The endocrine function is stimulated by this hormone in the anterior pituitary: follicle-stimulating hormone (FSH), and produces testosterone in the male.
1. The exocrine function of the reproductive system in females is stimulated by the hormone produced in the anterior pituitary called follicle-stimulating hormone (FSH), which promotes the production of ovarian follicles. The exocrine product in females refers to the release of eggs or oocytes from the ovaries during ovulation.
2. The endocrine function of the reproductive system in females is stimulated by the hormone luteinizing hormone (LH) produced in the anterior pituitary. LH triggers the release of estrogen and progesterone from the ovaries, which regulate the menstrual cycle, promote the development of the uterine lining, and prepare the body for pregnancy.
3. The exocrine function of the reproductive system in males is stimulated by the hormone produced in the anterior pituitary called luteinizing hormone (LH), which stimulates the production of testosterone in the testes. Testosterone is the primary male sex hormone and is responsible for the development of male reproductive organs and secondary sexual characteristics.
4. The endocrine function of the reproductive system in males is stimulated by the hormone follicle-stimulating hormone (FSH) produced in the anterior pituitary. FSH promotes the production of sperm cells (spermatogenesis) in the testes.
Overall, the reproductive system has both endocrine and exocrine functions, with the anterior pituitary gland playing a crucial role in regulating these functions through the production of specific hormones.
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Which of the following is an example of a regenerative agricultural practice?
Sadie uses natural processes to stimulate the formation of new topsoil.
Timothy uses natural pesticides to keep his crops healthy.
Sally rotates crops regularly to help prevent pest outbreaks.
Quinton practices no-till farming to maintain the fertility of the soil.
Sadie uses natural processes to stimulate the formation of new topsoil is an example of a regenerative agricultural practice.
What is regenerative agriculture?- Regenerative agriculture focuses on rebuilding soil health, increasing biodiversity, and improving ecosystem services. Sadie's practice of using natural processes to stimulate new topsoil formation is an example of this.
By promoting the growth of topsoil naturally, Sadie is building the fertility and resilience of her soil, which can reduce her need for synthetic fertilizers and other inputs that can harm the environment. This practice is sustainable, eco-friendly, and can help to mitigate many of the negative effects of traditional farming on the environment.
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The effects of different conditions on carrying capacity
if abiotic or biotic factors change, the carrying capacity changes as well, natural disasters can destroy resources in an ecosystem. if resources are destroyed, the ecosystem will not be able to support a large population. this causes capacity to decrease.
10. (04.03 HC)
Which substances are needed for cellular respiration?
Use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration. (10 points)
Chemical reactions that simulate cellular respiration follow the Law of Conservation of Matter when they are balanced. Six carbon atoms, 12 hydrogen atoms, and 18 oxygen atoms are the same number of atoms as the reactants. C₆H₁₂0₆+60₂ — 6C0₂+6H₂0 .
What is cellular respiration?Through the process of cellular respiration, organisms mix oxygen with food molecules, directing the chemical energy contained in these substances toward life-sustaining processes while excreting carbon dioxide and water as waste. Foods are broken down by organisms that do not require oxygen in a process known as fermentation.
What are atoms?A chemical element is uniquely defined by its atoms, which are small units of a substance. An atom is made up of a core nucleus and one or more negatively charged electrons that orbit it. The positively charged, comparatively hefty protons and neutrons that make up the nucleus may be present. The fundamental building components of matter are atoms. Atoms make up anything that has mass and occupies space.
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Which of the following is a way that groundwater depletion affects streams?
a.
lower water level
b.
loss of vegetation
c.
wildlife disruption
d.
all of the above
Please select the best answer from the choices provided
Answer:
d.
all of the above
Explanation:
streams can come from groundwater
and
streams can go to groundwater
usgsgov
Which statement describes the ability of the cell membrane to allow various substance to move through it?
The cell membrane is selectively permeable.
The cell membrane is composed of lipids and phosphates.
The cell membrane is both hydrophilic and hydrophobic.
The cell membrane is a bilayer structure.
Answer:
the cell membrane is selectively permeable
Explanation:
hope that helped
The statement that is the cell membrane is selectively permeable is the statement, which describes the tendency of the cell membrane to permit various substances to move through it.
• The cell membrane comprises a phospholipid bilayer with proteins embedded in it. These proteins perform a number of functions, and the most important function it performs is that they regulate what moves out and what moves in the cell.
• The membrane is selectively permeable as the substances do not pass through it indiscriminately.
• Some of the molecules like oxygen and hydrocarbons can pass through it, while some of the large molecules like glucose and sugars cannot pass through it.
Thus, the cell membrane is selectively permeable.
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What are the 4 ingredients needed to create a hurricane?
What are the 4 ingredients needed to create a hurricane?
Answer:
According to NASA there are four main ingredients that combine to make a hurricane. The first is a pre-existing weather disturbance. Most hurricanes start as a tropical wave, or low-pressure area. The second ingredient is warm water.
Explanation:
7. For the following scenario provide a hypothesis, the dependent variable, independent variable, standardized variables, and control group.
Scenario: You want to determine whether plants communicate with their neighbors in response to stress, so you design an experiment. You have two groups of plants, one that will be exposed to a stressor and another that will not. You apply the stress 3 times a day for 10 days. At day 1 you measure the amount of stress hormone in the plants and then again you measure the amount of stress hormone on day 10.
Here, the hypothesis is "plants communicate with their neighbors in response to stress", dependent variable is the amount of the stress hormone in the plants, and the independent variable is the exposure to stress (applied 3 times a day for 10 days), standardized variables are plants used, duration of the stressor, amount of stress hormone. The control group is the plant that is not exposed to stressor.
What is the significance of the control group?Here, the control group is the group of plants that are not exposed to stress, and the control groups plants are experimented or tested with the other plants to get the result of the stress hormone on the plants.
Hence, here, the hypothesis is "plants communicate with their neighbors in response to stress", dependent variable is the amount of the stress hormone in the plants, and the independent variable is the exposure to stress (applied 3 times a day for 10 days), standardized variables are plants used, duration of the stressor, amount of stress hormone. The control group is the plant that is not exposed to stressor.
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Please help me out with this.
The cell wall protects the cell it acts like a barrier
Cellular Respiration Answer key worksheet
The Cellular Respiration worksheet is given in the image attached.
What is Cellular Respiration?Cellular respiration is seen as a metabolic process that occurs in cells, where organic molecules are broken down to release energy in the form of ATP (adenosine triphosphate).
This process involves three main stages: glycolysis, the Krebs cycle, and oxidative phosphorylation. During glycolysis, glucose is broken down into pyruvate, which then enters the Krebs cycle, where it is further broken down to release energy-rich electrons.
Therefore, These electrons are then passed down a series of electron transport chains to produce ATP through oxidative phosphorylation. Cellular respiration is a vital process for all living organisms, as it provides the energy needed for various cellular processes and activities.
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How many FADH2 molecules does the Krebs cycle produces per 3 glucose molecules?
One molecule of glucose is broken down into two molecules of pyruvate.
So the krebs cycle occurs twice for each glucose molecule.
In the krebs cycle 1 molecule of FADH2 is produced.
we multiply 3 molecules of glucose by 2 krebs cycles that occur
3*6=6krebs cycles
and 1 molecule ofFADH2 per cycle so we get 6 molecules of FADH2
Identify the eicosanoid.
a.
Vitamin D.
b.
Cholesterol.
c.
Sex hormones.
d.
Thromboxanes.
e.
Bile salts.
Answer:
The eicosanoids are a family of oxygenated derivatives of 20-carbon polyunsaturated fatty acids that includes prostaglandins, thromboxanes, leukotrienes, endocannabinoids, and isoecosanoids.
Which pair of structures would provide a positive identification of an animal cell under a microscope?
Answer:
Golgi apparatus, mitochondrion.
Explanation:
hope this helps
What are the characteristics of supernovae?
what is autotroph class 7
answer in 5 sentences
pls I need answer ASAP
Whoever answers will be marked brainliest
In biology, autotrophs are organisms that can produce their own food using inorganic substances, such as sunlight and carbon dioxide.
How do we explain?Autotrophs are also known as primary producers because they form the base of the food chain by converting energy from the environment into organic compounds.
The topic of autotrophs is typically covered in the study of plant biology in the context of a class 7 curriculum.
The most prevalent kind of autotrophs are plants. They do this through a process known as photosynthesis, which turns carbon dioxide, water, and sunlight into glucose (a sugar) and oxygen.
Chloroplasts, specialized organelles found in plant cells, are where this process occurs.
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Felicia, Maria, and Louis are siblings. Felicia is the oldest and Louis is the
youngest. Maria is in the middle. How much of their genetic information will they
have in common?
they share 50% of their genetic information with each other.
Answer:
They share around 50% of their genetic information with each of the other siblings.
Hope this helps
Please help. I need this now.
When Mendel was doing his dihybrid cross experiment, he looked at 2 traits (seed color and shape) as opposed to his monohybrid cross, where he looked at 1 trait (flower color). What was Mendel able to illustrate by doing this experiment?
WILL GIVE 5 AND BRAINLIEST
Answer:
Dihybrid Cross In a dihybrid cross experiment, Mendel considered two traits, each having two alleles. He crossed wrinkled-green seed and round-yellow seeds and observed that all the first generation progeny were round-yellow.
Explanation:
Have a blessed day =)
Answer:
Explanation:
I am not sure
Place the steps for the formation of the enzyme pepsinogen in the correct order.
The DNA strands unwind, and
RNA polymerase binds to the
template strand.
The mRNA undergoes intron
splicing and exits the
nucleus.
The tRNA moves through mRNA
with the activated amino acids
attached to it.
The synthesis of mRNA begins.
The amino acids assemble
to form peptide.
↓
↓
↓
↓
Reset Next
Post Test: Cells
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Pepsinogen is the precursor to the enzyme pepsin that acts in the digestion of proteins.
What is the order in which pepsinogen is formed?The order in which pepsinogen is formed is given as follows:
The DNA strands unwind, and RNA polymerase binds to the template strand.The synthesis of mRNA begins.The mRNA undergoes intron splicing and exits the nucleus.The tRNA moves through mRNA with the activated amino acids attached to it.The amino acids assemble to form peptide.This process is known as protein synthesis, or translation, and involves the transcription of DNA into mRNA, followed by the translation of mRNA into a chain of amino acids. The newly synthesized chain of amino acids then folds into the functional protein. In the case of pepsinogen, it is synthesized and secreted by the chief cells of the stomach and later activated to form the enzyme pepsin by the acidic environment of the stomach.
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what is the analogy between the vacuole and a school?
Answer:
The vacuoles is like the cabinets in the school used to store items. where we release all of our energy. Cytoplasm is like the hallways of the school.
When a P wave originates in the SA node, it is expected to be smooth, rounded and ___ in Lead II.
A. inverted
B. upright
C. notched
D. biphasic
When a P wave originates in the SA node, it is expected to be smooth, rounded and upright in Lead II.
The correct option is option B.
The SA node which is also called the sinus node basically has a crescent shape and is found located at the crista terminalis junction present in the upper wall of the right atrium of the heart and the opening of superior vena cava.
The P wave as well as the PR segment are basically a very essential part of an electrocardiogram or the ECG. It happens to represent the electrical depolarization of the atria present in the heart. It is basically a small positive deflection from isoelectric baseline that happens right before the QRS complex. If there are any abnormalities in its morphology or in the timing then that can be indicative of some kind of significant clinical pathology. It is expected to be upright as well as rounded.
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How are scientists able to see photosynthesis from space? Explain.
Answer: Answer is below <3
Explanation: During photosynthesis, plants emit what is called fluorescence – light invisible to the eye but detectable by satellites orbiting hundreds of miles above Earth. NASA scientists have now established a method to turn this satellite data into global maps of the subtle phenomenon in more detail than ever before.
Question is in the picture below
in a pain assessment it is the nurse's role to collect subjective and objective type of data
50 POINTS PLEASE QUICK
Drag each tile to the correct location
Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both
can be tested by
many independent
researchers
based on
observations of
natural phenomena
makes predictions
about future
event
a tentative
statement used to
guide scientific
investigations
a well-established,
highly reliable
explanation
Answer:
can be tested by many independent researchers - bothbased on observations of natural phenomena - bothmakes predictions about future events - botha tentative statement used to guide scientific investigations - hypothesisa well-established, highly reliable explanation - theoryExplanation:
A hypothesis is like a guess you make before you do any research, and a theory is like a conclusion you draw after you see the data. A hypothesis can be right or wrong, but a theory is more likely to be right because it has evidence to back it up. A hypothesis can change if you find new data that contradicts it, but a theory is stable and consistent. For instance, the Cell Theory is a theory that tells us how living things work based on what we see under a microscope and in a lab, while a hypothesis might be an idea about why some animals have different kinds of skin, like fur or scales.
Sometimes, something can be both a theory and a hypothesis, depending on how much evidence it has and how many things it can explain. A theory is a hypothesis that has passed many tests and can explain a lot of things, and a hypothesis is a theory that has not done that yet. For example, the string theory is a hypothesis that tries to tell us what everything is made of, but we don't have any data to prove it. The cell theory, however, is a theory that tells us what living things are made of, and we have lots of data to prove it.
Answer:
Answer:
can be tested by many independent researchers - both
based on observations of natural phenomena - both
makes predictions about future events - both
a tentative statement used to guide scientific investigations - hypothesis
a well-established, highly reliable explanation - theory
Explanation:
Pseudoscience is more likely to be driven by ALL of the following factors EXCEPT?
A. commercial interests
B. evidence
C. culture
D. ideology
Explanation:
A because you need reservation question hypothesis experiment analyze and a conclusion
What is the source of the Hawaiian Islands?
plate movement cause a mountain to separate from land
gases deep in Earth’s core
an underwater earthquake
underwater volcanoes
this is science
Answer:
Underwater volcanoes
Explanation:
The Hawaiian Islands are a result of underwater volcanic activity - countless eruptions of over several million years. This activity still takes place at an undersea magma source called the Hawaii hotspot and continues creating new islands. The tectonic plate beneath this part of the Pacific Ocean continually moves while the hot spot remains still. As a result, new volcanoes are created. Today, four of these volcanoes are active, two are dormant, and more than 123 are extinct.
Answer:
Underwater Volcanoes
Explanation:
I took the test
A student conducts an experiment to determine how the amount of water given to a plant affects its growth.
What is the independent variable for this experiment?
a the amount of water
b. the height of the plant
c. the amount of sunlight
d. the amount of soil
Please select the best answer from the choices provided