A well supported testable explanation of phenomena that have occurred in the natural world is called
Consider the consequences of a mutation in the dna template sequence 5'atg3' to 5'ttg3': what is (a) the resulting change in the mrna codon and (b) the effect on the corresponding amino acid? see section 16.4 (page 344) .
DNA and RNA are both
Answer
made up of nucleotides and carry molecules from one end of a cell to another
molecules that contain genetic information and are made up of nucleotides
monomers of protein molecules that provide structure to a cell’s nuclear membrane
protein molecules that carry the unique genetic information of an organism,
Starch is broken down into individual units of maltose in the presence of an enzyme known as amylase. Which statement best describes the role of amylase in this reaction?
The enzyme Amylase plays a fundamental role in carbohydrate digestion. It initiates the breakdown of starch to maltose starting in the mouth and concluding in the small intestine where it acts as a catalyst, speeding up the reaction without getting consumed.
Explanation:The role of amylase in the breakdown of starch to maltose is initiation. Amylase is an enzyme that initiates the chemical digestion process of dietary carbohydrates, specifically starches. It is a key digestive enzyme that is primarily produced in the salivary glands and the pancreas. The process starts in the mouth, where the salivary amylase begins the process of breaking down starch into smaller carbohydrate units, including maltose. This breakdown continues in the small intestine, where pancreatic amylase takes over and completes the digestion of starch to maltose.
In this reaction, the amylase functions as a catalyst, which means it speeds up the reaction without getting consumed in the process. It does so by lowering the activation energy required for the reaction, enabling the starch to be broken down into maltose at body temperature.
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At 31 weeks' gestation, a 37-year-old woman with a history of preterm birth reports cramps, vaginal pain, and low, dull backache accompanied by vaginal discharge and bleeding. assessment reveals cervix 2.1 cm long; fetal fibronectin in cervical secretions, and cervix dilated 3 to 4 cm. which interactions should the nurse prepare to assist with?
The nurse should prepare this kind of patient for tocolytic therapy, corticosteroids as well as hospitalization.
Explanation
When the pregnancy of this kind of a mother is 31 weeks old, the goal should be to maintain it as long as possible especially if the fetus and the mother can put up with the continuation of the pregnancy. It is also necessary to stop the contractions and also place the mother in the hospital for proper monitoring. Administering corticosteroids can help develop the lungs hence preparing for early preterm delivery."abnormal enlargement of air sacs in the lungs can lead to which condition"
which type of relationship do the parrotfish and the rabbitfish have in the corral-reef environment
The answer is Commensalism. This is a kind of symbiotic relationships, it is an association of organism benefits the others while the other is unharmed. Also it is a relationship between two organisms where the one benefits the other while the other is not affected.
What information is not required on the nutritional portion of a food label?
i had this question and it was price
hope this helps
Answer:
Price
Explanation:
Out of all the options "Sizes" is the only option that is not included on the label.
The nutrition facts label is nutritional information that is written on the packaged food that shows the percentage of the nutrients present in the packaged food.
Different countries in the world has their nutrition guidelines for all packaged food that are been sold in daily basis
nutrition information that's well detailed helps the consumers to have a good eating habit and this information can only be produced by the producers.
Some information on the label includes;
1.)INGREDIENTS; the ingredients are usually arranged in certain order I.e from the major ingredients(highest quantity) to minor ingredients (lowest quantity) such as sucrose,additives and others. and any FDA- certified must be included.
2.)DAILY VALUE; It is used on food label to so that the consumers can plan a healthy diet, it provide the percentage of the nutrients that is contained in a serving of food.
3.)PORTION SIZE; is the amount of a food consume in single occasion.
Which organism listed below does not extract energy through cellular respiration?
a. horse
b. bison
c. sequoia tree
d. human
e. all living organisms extract energy from food through cellular respiration?
Infections of which sexually transmitted disease can be greatly reduced by a vaccination?
7. Describe what happened as the ice melted. Where do you think the energy goes when it is not raising the temperature?
Final answer:
Ice melting at room temperature involves energy transfer from the environment to the ice, which breaks intermolecular hydrogen bonds and increases the entropy of the system without raising the temperature.
Explanation:
Phase Change in Ice Melting
When ice melts, the energy absorbed from the surroundings is used to break the hydrogen bonds holding the water molecules in a solid structure. During this phase change, the temperature of the ice does not increase; instead, the energy is dedicated to changing the state from solid to liquid. The water molecules in melting ice increase their kinetic energy until they can move freely, leading to a liquid state with higher entropy. This entropy increase signifies a greater degree of disorder within the system because the molecules have more freedom of motion in the liquid state than in the solid crystalline state.
Heat transfer during melting originates from the warmer surrounding environment, like room temperature air or your hand if you're holding the ice. As the energy is transferred to the ice, it becomes the kinetic energy of the water molecules, but since the process involves breaking intermolecular bonds rather than increasing speed of movement, there's no increase in temperature until all ice has melted
Does a high-fat meal raise or lower the level of cholecystokinin (cck) in the blood?
Based on this activity which of these definitions best explains the phrase "survival of the fittest"?
a. only the strongest organisms of a species survive
b. only the surviving and reproducing organisms of a species survive
c. only the most attractive organisms of a species survive
d. only the organisms with dominant alleles of a species survive
What did Charles Darwin discover about the theory of evolution?
Answer:
natural selection
Explanation:
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Which is not an adaptation of desert animals that help them retain and acquire water in such a hot and dry environment?
a. burrow in moist soil or live in underground dens
b. excrete uric acid instead of urine
c. evolved an internal ‘air conditioning' system to help them stay cool
d. obtain water from the plants and animals they eat please select the best answer from the choices provided?
The correct answer is C
Name three ways prokaryotic cells differ from eukaryotic cells (name characteristics of the prokaryotic cells
Answer:
Eukaryotic cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled, such as you, me, plants, fungi, and insects. Bacteria are an example of prokaryotes. Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle.
Explanation:
The three ways prokaryotic cells are different from eukaryotic cells
Prokaryotic cells do not have cell organelles.The prokaryotic cell may contain flagella for locomotion.Prokaryotic cells are only present in unicellular organisms.What are prokaryotic cells?Prokaryotic cells are the primitive type of cells, that are present only in a unicellular organism. They do not undergo cell division full stop these cells do not have true cell organelles and a nucleus that DNA is present in coil form in the cytoplasm.
They contain ribosomes the organisms are bacteria that contain prokaryotic cells.
Eukaryotic cells are higher cells that contain cell organelles they have to perform various complex functions of large organisms. They have a nucleus that contains DNA or genetic material, it does not have a flagellum.
Thus, the differences are:
Cell organelles are not present in prokaryotic cells.
Flagella for prokaryotic cell movement may be present.
Only unicellular organisms contain prokaryotic cells.
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In plant cells, cytokinesis begins with a furrow that pinches the cell.
a. True
b. False
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Which of the following is an example of a nonrenewable resource?
Question 1 options:
hydroelectric power
soil
wind
coal deposit
Question 2 (20 points) Question 2 Unsaved
Which of the following is a renewable resource?
Question 2 options:
wind
fossil fuel
mineral deposit
all of the above
Question 3 (20 points) Question 3 Unsaved
What is a strategic mineral?
Question 3 options:
one that is exported from the United States
one that must be imported to the United States
a nonmetallic resource
one that is easily removed from the ground
Question 4 (20 points) Question 4 Unsaved
What is the most common use of water in the United States?
Question 4 options:
industry
agriculture
domestic use
power plants
Question 5 (20 points) Question 5 Unsaved
Which of the following would reduce water tables?
Question 5 options:
snowmelt
flood
water pollution
overpopulation
Which two muscle types contract by shortening of the sarcomeres? select all that apply?
The process of producing recombinant dna involves taking a gene from one organism and attaching it to the dna from another organism. write and an analogy that describes this process.
HELP PLEASE
What unit is used to measure surface temperature of the planets?
a.
Kelvin
c.
Degrees Celsius
b.
Degrees Fahrenheit
d.
Angstroms
Answer:
The correct answer is option A. Kelvin.
Explanation:
Kelvin is the is unit of temperature measuring like Celsius and Fahrenheit. The planet's temperature is mostly measured in the kelvin unit of temperature however degree Celsius and degree Fahrenheit also use to measuring in many cases.
Kelvin is an international unit of temperature which is equal to the -273 degree celsius and in planetary science mostly kelvin is used as the unit of measurement.
Thus, the correct answer is option - a. kelvin
Recombination is the primary source of genetic variation for
While working in a forensic lab, you are given a bit of tissue to analyze. it has several layers. the upper surface consists of dead, flattened cells. as you move deeper into the tissue, the cells look healthier. the bottom layer of cells is actively dividing. under the dividing layer is an acellular protein goo. you identify the sample as ________ tissue?
Could the mitochondrial DNA of either James Carnegie or Countess Xenia be used to try to identify the skeleton of Tsar Nicholas?
Final answer:
The mitochondrial DNA of James Carnegie or Countess Xenia cannot be used to identify the skeleton of Tsar Nicholas.
Explanation:
The mitochondrial DNA of either James Carnegie or Countess Xenia could not be used to try to identify the skeleton of Tsar Nicholas because mitochondrial DNA is inherited maternally and Tsar Nicholas would not have inherited his mitochondria from either James Carnegie or Countess Xenia. Mitochondrial DNA can only provide information about maternal lineage. Therefore, it would be more useful to examine the mitochondrial DNA of Tsar Nicholas, any known maternal relatives, or other individuals directly related to Tsar Nicholas through a maternal line.
A client and her partner are working together to achieve an unmedicated birth. the client's cervix is now dilated to 7 cm, and the presenting part is low in the midpelvis. what should the nurse instruct the client to do that will alleviate discomfort during contractions
when gas partices rush out of the nozzle of a rocket downward
The fungal group with the largest number of known species is:
In science, a scientific theory is defined as a/an __________.
PLEASE, SOMEONE HELP ME! :) When we think about the effects of air pollutants we immediately think of respiratory issues. Exposure to one criteria air pollutant has harmful effects on the cardiovascular system including increased occurrence of heart attack and stroke. These effects can result in emergency department visits, hospitalizations and, in some cases, premature death. As expected, exposure to this pollutant is also linked to harmful respiratory effects, including asthma attacks. What is this pollutant?
A) ozone
B) sulfur dioxide
C) carbon monoxide
D) particulate matter
Rock begins to melt when temperature increases and decreases answer key