Answer:
b. earth was formed from a cloud of gas and dust spinning and moving some distance from the sun.
The diagram to the right shows a planet's orbit around the Sun. At which location is the planet's orbital
velocity (speed) greatest?
A
Sun
Answer:
According to the second Kepler's law:
A line joining a planet and the Sun sweeps out equal areas during equal intervals of time
The planet travels faster when closer to the Sun and slower when distant.
So the answer is point A
Complete the following sentence using the most appropriate words.
A blood sample obtained from the crime scene was sent to the laboratory to determine if it contained any drugs.
The[microcrystalline, color, spectroscopy]
test was performed on the sample, which involved mixing it with a reagent and observing the result using the[spectroscopy, chromatography, microscopy]
technique.
Answer:
Microcrystalline
Chromatography
Explanation:
A blood sample obtained from the crime scene was sent to the laboratory to determine if it contained any drugs.
The MICROCRYSTALLINE test was performed on the sample, which involved mixing it with a reagent and observing the result using the CHROMATOGRAPHY technique.
how the skin cells, neurons, muscle cells, and blood cells you have observed relate to the functions of skin, nerve, muscle, and blood tissue.
every cell has work to do but different cells may have different jobs in multicellular organisms, cell with the same type of job often work together. These group of specialized cell from tissue in turn, tissue often group together to form larger units called organs the heart is an organ; so is the stomach.
The moon appears half lit, half dark from the surface of Earth on two days each month. What causes this? (1 point)
Half of the moon's surface that is illuminated by the sun is visible from Earth's perspective.
Earth’s shadow is blocking the light from the sun.
Half of the moon is totally eclipsed.
It is a partial lunar eclipse.
Answer:
Half of the moon's surface that is illuminated by the sun is visible from Earth's perspective.
The moon is the natural satellite present in the universe that orbits the planets. The moon appears half-lit and dark as it is illuminated by the sun. Thus, option A is correct.
What is the moon?Moon is the natural satellite that revolves around the earth and is found in the universe where all the stars, galaxies, sun, and other planets are located at. The moon can be a new moon or a full moon once a month.
The full moon and new moon appear in the night sky due to rotation and the illumination of the sunlight on the moon. The surface of the moon appears half-lit and half-dark in the sky two days a month due to the position of the Sun and earth.
The moon varies its phases due to the light illumination of the sun that makes the moon appears in various shapes from the earth's perspective. The half face of the moon is away from the earth while the other half is illuminated and visible on earth.
Therefore, option A. is correct. The half-lit and dark moon are due to the sun's illumination that changes from the earth's perspective.
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How do simple and complex sugars compare in their effect on your glycemic index?
Answer:
The glycemic index allows you to compare the ability of foods to increase blood sugar (glucose) levels. In general, simple carbohydrates have a medium to high glycemic index. In the case of complex carbohydrates, this varies.
Explanation:
The Glycemic Index (GI) is a measure that provides information on how quickly blood sugar levels rise after eating a certain food. Low glycemic index foods are those that have a low content of sugars or simple carbohydrates and that help regulate blood glucose levels, the consumption of foods with a low glycemic index has been proposed as a prevention and / or management factor of obesity, cardiovascular diseases, type 2 diabetes mellitus and some types of cancer. Complex carbohydrates are made up of larger, more complex molecules and are found primarily in the form of starch and fiber. Foods high in fat or fiber are digested more slowly, so they also cause a slower rise in blood sugar. A food with a high GI raises blood sugar faster than foods with a medium or low GI. The GI is higher when foods do not contain fiber and they are easily digested, since they reach the bloodstream quickly, it is also higher if there is sugar or if cooking destroys part of the fiber and favors the digestion of food.
Imagine that you are trapped within the exclusion zone. As you hike your way out, you begin to feel hungry. Using what you know about biomagnification, which food source would be the
safest? Explain how you know.
a. Mushrooms, fruit, and berries
b. Moose or deer meat.
C. Wolf meat.
d. Eagle meat.
The food sources that would be the safest are mushrooms, fruit, and berries.
What do you mean by Biomagnification?Biomagnification may be defined as the process by which a compound such as toxins, pollutants, etc. increases its concentration in the tissues of organisms as it travels up the food chain.
Mushrooms, fruit, and berries are present at the lowest level of the trophic level because they are autotrophs. Due to their position, they contain the lowest amount of toxins in them, and hence are more safest.
Therefore, the food sources that would be the safest are mushrooms, fruit, and berries.
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Groundwater is an important source of drinking water especially in Florida. What is the underground reservoir where water is found?
What is this organelle?
Answer:
It's the mitochondria
Explanation:
The mitochondria is the powerhouse of the cell.
How do fungi get the matter and energy they need to survive
A fungi are hybrid theaters they do not make their own food
B they concern their fungus to survive
C they must consume their organisms
D A and C are true
Answer:
They consume other organisms
Explanation:
You might see a mushroom on a dead log or green stuff on it that is fungi breaking it down
Do AIDS transfer by saliva and sweat??????
It can only be transmitted when certain fluids from an HIV-positive person move directly into the bloodstream or through mucous membranes of an HIV-negative person. Tears, saliva, sweat, and casual skin-to-skin contact can't transmit HIV.
PLEASE HELP ASAP!!!
What is one example of an index fossil?
1. a rock
2. a tooth
3. a trilobite
4. a meteor
Answer: #1. A Rock
Definition: A fossil that is useful for dating and correlating the strata in which it is found.
Note: Hope this helps answer is from Acceleration Education / Buzz.
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What is the complementary DNA strand from the following DNA
template:
GGTACTAGCCATATCG
A- CCATGATCGGTATAGC
B- OTTATGATCGGTATAGC
C- CCAUGAUCGGUAUAG
D- OGGTACTAGCCATATCG
Answer:
The third one
Explanation:
Hey There!
Just so you know when you try to find the complementary base strand you put the letter of the nucleotide that it pairs with
Guanine pairs with Cytosine
Thymine Pairs with Adenine
Adenine Pairs with Uracil
Cytosine Pairs with Guanine
If you have anymore questions feel free to ask :)
Economically speaking, which food product would be a "substitute good" for a
beef steak? *
bread
pizza
ostrich
bologna
Which of these statements is TRUE of complementary products?
Economically speaking, a food product that would be a "substitute good" for a beef steak is bologna. Thus, the correct option for this question is D.
What are complementary products?Complementary products may be defined as food or another item that is bought together with the main product. These products are used in conjunction. These products are typically used together with the main product.
A complementary product is produced along with another good. For example, straw is a complement in the production of wheat. The supply of a good increase if the price of one of its complements in production rises. The supply of goods decreases if the price of one of its complements in production falls.
Therefore, economically speaking, a food product that would be a "substitute good" for a beef steak is bologna. Thus, the correct option for this question is D.
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2. You have the below template DNA strand. Draw the coding DNA strand and mRNA. Include which ends are 3’ and which are 5’.
template DNA 3’ CCTACGGTTCGTACCCCGTATGTGTAACTTGTCAT 5’
Answer:
DNA strand. Draw the coding DNA strand and mRNA. Include which ends are 3’ and which are 5’.
Explanation:
Describe how air pollution can lead to water pollution.
Answer:Atmospheric deposition is the pollution of water caused by air pollution. In the atmosphere, water particles mix with carbon dioxide sulphur dioxide and nitrogen oxides, this forms a weak acid. ... When acid rain pollutes marine habitats such as rivers and lakes, aquatic life is harmed.
Explanation:
Organelles are specialized structures that perform various functions in the cell. What are the functions of the organelles in an animal cell?
Answer: Different organelles play different roles in the cell — for instance, mitochondria generate energy from food molecules; lysosomes break down and recycle organelles and macromolecules; and the endoplasmic reticulum helps build membranes and transport proteins throughout the cell.
Explanation:
The
secretes special enzymes that help the stomach digest fats.
Answer:
The pancreas gland lies just beneath the stomach.
Explanation:
It produces a host of digestive enzymes, including lipases, which are essential in fat digestion. The pancreas also secretes bicarbonate ions, which help to neutralize the pH of the chyme entering from the stomach.
Describe the function of one barrier (innate immune system).
Describe the function of one internal component of the innate immune response.
Describe the function of one component of the adaptive immune response.
Answer:
"The innate immune system works to fight off pathogens before they can start an active infection. For some cases, the innate immune response is not enough, or the pathogen is able to exploit the innate immune response for a way into the host cells."
Explanation:
In cellular respiration, the energy for most ATP synthesis is supplied by:
A. High energy phosphate bonds in organic molecules
B. A proton gradient across a membrane
C. Converting oxygen to atp
D. Transferring electrons from organic molecules to pyruvate
E. Generating carbon dioxide and oxygen in the electron transport chain
Answer:
B. A proton gradient across a membrane.
Explanation:
Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.
Additionally, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.
Basically, oxygen goes into the body of a living organism such as plants, humans and animals when they breathe while glucose is absorbed by the body when they eat.
In cellular respiration, the energy for most ATP synthesis is supplied by proton gradient across a membrane.
This ultimately implies that, most adenosine triphosphate (ATP) is formed due to the net movement of protons against a concentration gradient in the electron transport chain.
Select the 400x magnification,if necessary,adjust the fine focus,now.what do you see
how can you avoid having bias about global warming?
a. use your personal opinions
b. draw a conclusion that benefits you
c. use objective evidence
d. only use facts that help your side of the argument
Answer: C
Explanation:
The following is TRUE of carbohydrates
Answer:
is there a pic?
Explanation:
Which of these is evidence of global warming?
OA. Stable precipitation patterns
O B. Falling global temperatures
OC. An increase in the size of glaciers
OD. Overall rising sea levels
The evidence of global warming is best seen in the overall rising sea levels.
How high are the seas?The average height of the ocean's surface above the surface of the land is referred to as sea level. It is a crucial gauge of climate change on Earth and is influenced by a number of variables, such as variations in global temperatures, ocean currents, and land movements.
This is brought on by the melting of glaciers and polar ice caps as well as the thermal expansion of warming seas. Sea levels are increasing more quickly as the earth heats, which is a direct outcome of global warming.
The other possibilities, such consistent precipitation patterns, declining global temperatures, and an expansion of glaciers in size, are not necessarily signs of global warming.
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explain how pH affects enzyme activity
Explanation:
Enzymes are also sensitive to pH . Changing the pH of its surroundings will also change the shape of the active site of an enzyme. ... This contributes to the folding of the enzyme molecule, its shape, and the shape of the active site. Changing the pH will affect the charges on the amino acid molecules.
10 points plz I need help
Answer:
Explanation:
c
18. What is the complementary base of adenine in DNA?
O cytosine
Ouracil
O guanine
Othymine
Answer:
Uracil
Explanation:
It's the correct answer
Which of the following statements stated below is precisely correct?
O A. Oxaloacetate is always regenerated during the Krebs cycle.
O B. The second substrate-level phosphorylation occurs during Krebs cycle.
O C. All the enzymes that catalyze the Krebs cycle are dehydrogenase.
O D. Answers A and B are the right answer choices for this question.
O E. Answers A, B, and C are the right answer choices for this question.
The plasma membrane is
Answer:
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. ... The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.
Explanation:
Which list of words describes an action potential?
all or none, neurotransmitters, membrane potential
membrane potential, neurotransmitters, electrical signals
electrical signals, all or none, neurotransmitters
all or none, membrane potential, electrical signals
Answer:
The correct answer is
Explanation:
This is because an action potential is An action potential is a rapid rise and also a fall in the cells membrane potential or the voltage of the cell over the membrane forming a pattern. For action potential to take place, there is need for enough current to initiate a form voltage response in the cell membrane; if the current is not enough in the membrane to depolarize the membrane to the threshold level, an action potential is not activated .
Answer: d: all or none, membrane potential, electrical signals
Explanation:
Living organisms release carbon dioxide as a product of photosynthesis
a. True
b.false
a. true
Explanation:
hope it will helpful to you
If you are talking about plants it is false because they release oxygen as a “waste” product from photosynthesis but if the question is referring to animals and human beings the answer would also be false because we do not undergo photosynthesis. Best bet is false