What is the relationship between the pharyngitis and subsequent rheumatic fever? With what possible cardiac involvement is Sonya’s physician concerned?
What is the results for the lab Investigating Biological Compounds??
An acid is a(n) _____.
proton donor :)
What is the role of chlorophyll inside chloroplasts?
Chlorophyll, the green pigment located in the thylakoid membranes of chloroplasts, is essential for photosynthesis as it absorbs sunlight and converts it into chemical energy used to produce plant sugars.
Explanation:Chlorophyll is a vital green pigment found within the thylakoid membranes of chloroplasts, the organelle where photosynthesis occurs. It plays an essential role in the process of photosynthesis by absorbing sunlight and converting it into chemical energy. This energy is then used, along with water and carbon dioxide, to produce sugars for the plant, which are essential for its growth and development.
In chloroplasts, chlorophyll molecules are meticulously embedded in the thylakoid membranes, and when they capture light energy from the sun, they energize electrons within the chlorophyll molecule. These high-energy electrons are then used in a series of complex reactions to generate energy-rich compounds like ATP and NADPH, which subsequently fuel the Calvin cycle to synthesize sugars.
The presence of chlorophyll in plants also contributes to their green color, as it reflects green wavelengths of light while absorbing other wavelengths, particularly those in the blue and red spectrums, which are crucial for photosynthesis.
Help plz
1. The graph below depicts the frequency of expression of the coloration of beetles on an island:
Graph is the 1st Pic
Birds are the main predators of these beetles; they hunt the beetles by sight and pick them up off of the tree bark where they feed. A logging company clears the trees off of the island and plants younger trees as a replacement. Trees with light bark are planted on one side of the island and trees with dark bark are planted on the other side of the island. What do you predict would happen to the range of coloration in the populations of beetles on each side of the island? Select TWO answers, one to represent the beetles living on the light colored trees and one to represent the beetles living on the dark colored trees. (2 points)
A. graph 2 below
B. graph 3 below
C. graph 4 below
D. graph 5 below
Graph 3 represent the beetles living on the light colored trees and graph 5 represent the beetles living on the dark colored trees.
Options B and D are correct
How do we explain?These beetles are likely to experience selective pressure favoring lighter coloration because lighter-colored beetles would be better camouflaged against the light bark, making them less visible to birds. Over time, natural selection may lead to an increase in the frequency of lighter-colored beetles in this population.
In the same way, beetles on the dark-colored trees may experience selective pressure favoring darker coloration. Darker-colored beetles would be better camouflaged against the dark bark, providing them with a better chance of avoiding bird predation. Over time, natural selection may lead to an increase in the frequency of darker-colored beetles in this population.
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What's the difference between primary succession and secondary succession
Final answer:
The difference between primary and secondary succession is that primary succession occurs on newly formed land with no soil, requiring pioneer species to create soil, while secondary succession occurs on disturbed land with existing soil, allowing for faster recovery.
Explanation:
Ecological succession is the process where a community experiences a sequence of changes with the appearance and disappearance of species over time. The main difference between primary succession and secondary succession lies in the condition of the environment where the succession begins.
Primary succession occurs in areas where no soil exists because it's a newly formed or exposed environment, such as land formed from lava flow or locations where glaciers have retreated. Here, the environment is colonized by pioneer species which can grow in such harsh conditions and gradually create soil by breaking down rock and contributing organic matter as they die off.
In contrast, secondary succession happens in areas that were once home to existing life but were disturbed by events like wildfires or human activities. In these cases, soil is already present, and remnants of the destroyed community provide a basis for new growth. Succession in these situations tends to be faster than primary succession because the soil already contains nutrients needed for plant growth.
What is the carbon cycle?
Small pea seeds move around each other but do not bounce off. What state of matter is this?
The answer is C or liquid because liquid particles do not bonce off each other and liquids are Particles are loosely together Indefinite shape and definite volume Able to flow and Dan said "Small pea seeds move around each other but do not bounce off" so he is referring those small pees as molecules and he did say the pee seeds move around each other and bounce off and please correct me if am wrong and not to throw you under the bus lori0 but mullins is a town in south carolina
also can i have branlyest i never had it before
Answer:
liquid
Explanation:
a human impact on the nitrogen cycle, such as fertilizer
When farmers harvest crops, a lot of the plant material is also removed. Little is left to decay and return nitrogen to the soil. If the soil stays this way, it will start producing fewer crops. Fertilizer contains the nitrogen compounds that are essential for plant growth. It can be used to replace the nitrogen in the soil to ensure the growth of healthy crops.
What are some similarities and differences between Earth Science and Physical Science.
Please give 3 for Earth science, 3 for Physical Science and 3 for similarities.
While Earth Science is centered on Earth and its systems, Physical Science has a broader scope that includes the study of the universe and fundamental principles of matter and energy. Both fields share common methodologies and foundational principles, and they often overlap in areas such as the chemistry of the Earth's atmosphere and oceans or the physics of Earth's magnetic field.
Similarities between Earth Science and Physical Science:
1. Both Earth Science and Physical Science involve the study of natural phenomena and aim to understand the physical world around us.
2. They both use the scientific method to conduct experiments, make observations, and draw conclusions.
3. Both fields rely on principles of physics and chemistry to explain the processes and interactions within their respective areas of study.
Similarities for Earth Science:
1. Earth Science focuses on the study of Earth's physical components, such as its atmosphere, oceans, and landforms.
2. It includes the study of natural disasters like earthquakes, volcanoes, and hurricanes, which are directly related to Earth's systems.
3. Earth Science also encompasses the study of Earth's history, including the fossil record and geological time scales.
Differences for Physical Science:
1. Physical Science is broader in scope, encompassing all aspects of the physical world, not limited to Earth. It includes the study of the universe, matter, and energy.
2. It is divided into two main branches: physics, which deals with the properties and nature of energy and matter, and chemistry, which focuses on the composition, structure, properties, and changes of matter.
3. Physical Science often involves more abstract concepts, such as quantum mechanics or thermodynamics, which are not exclusive to Earth.
Differences for Earth Science:
1. Earth Science is more focused on the practical and applied aspects of science that are directly related to Earth and its immediate surroundings.
2. It includes disciplines such as meteorology, geology, oceanography, and environmental science, which are specific to Earth's systems and phenomena.
3. Earth Science is interdisciplinary, integrating biology and ecology to understand how life interacts with Earth's physical and chemical processes.
A student swings his keychain around in a circle. What is the source of the centripetal force for this action?
Answer:
The correct answer will be- tension
Explanation:
Centripetal force is the force acting on the object moving in a circular path with direction towards the center. The centripetal force causes the object to follow a curved path.
Three forces together act on the string with key: Tension (a force acting on the key chain due to string), gravity (the downward force), and friction (resisting force). Out of these the main source of action of centripetal force is the "tension" applied by the string on the key-chain.
Thus, tension is the answer.
two objects of the mass are on two different planets. planet a has force of gravity that is weaker than that of planet b. how will the weights of the objects compare to each other ?
Explanation:
Weight is defined as the force that the gravity exerts on an object due to its mass. So higher the gravity higher the weight and lower the gravity lower the weight. The object on planet 'a' that has a force of gravity that is weaker than that of the planet 'b' will have less weight than the object on planet 'b'.
Which is the best example of a hypothesis?
When temperature increases, ice melts faster.
If temperature is increased, then ice will melt more quickly.
When ice melts quickly, it is because temperature was increased.
If ice melts quickly, then the temperature was increased.
Final answer:
The best example of a hypothesis from the given options is 'If temperature is increased, then ice will melt more quickly.' This statement is testable and formatted correctly (If... then...), which aligns with the definition of a hypothesis in scientific inquiry.
Explanation:
To identify the best example of a hypothesis, it is important to understand what constitutes a hypothesis. A hypothesis is a suggested explanation that can be tested and is typically formatted as 'If... then...'. Therefore, the best example of a hypothesis from the options provided is, 'If temperature is increased, then ice will melt more quickly.' This statement sets up a condition (increased temperature) and predicts an outcome (ice melting more quickly) that can be tested through experimentation.
An example to illustrate the concept could be how you can dissolve sugar more rapidly in hot water, which demonstrates the principle that certain processes increase with temperature. To further explain, if a student approaches a warm classroom and asks why it is warm, proposing a hypothesis such as 'The classroom is warm because no one turned on the air conditioning' follows the correct structure. It is testable because the student can turn on the air conditioning to see if the classroom's temperature decreases.
Which advance resulted from the development of a culture technique for muscle cells? smallpox inoculant insulin production polio vaccination vitamin E production
Answer is... Smallpox inoculant, insulin production, polio vaccination, and Vitamin E production.
Be safe!
Give an example of matter moving from the geosphere to the atmosphere
how do astronomers use the celestial sphere to plot a stars exact position
One active transport process that occurs in the electron transport process in the membrane of the _____________ is the transport of protons to produce a proton gradient to power the production of ATP.
A) chloroplast
B) mitochondria
C) nucleus
D) ribosome
Assignment 03.02 The Layers of the Earth ( FLVS HELP )
Fluorine has an atomic number of 9. The n = 1 energy level has two electrons, and the n = 2 energy level has seven electrons. Flourine's valence is _____.
Which food molecule (monosaccharide, polysaccharide, lipid, or protein) would you eat if...
You needed a quick boost of energy
You wanted to grow strong nails, you haven't eaten in days
You wanted to grow healthy hair
You had a race a race tommorow afternoon
You were getting ready for hibernation
You wanted to get bigger muscles
Your meal will be in a week
ANSWER ALL QUESTIONS ABOVE!!!
Based on the properties of the food molecules, the types of food to be taken are:
You needed a quick boost of energy - monosaccharideYou wanted to grow strong nails, you haven't eaten in days - proteinYou wanted to grow healthy hair - proteinYou had a race tomorrow afternoon -polysaccharideYou were getting ready for hibernation - lipidsYou wanted to get bigger muscles - proteinYour meal will be in a week - lipids.What are the functions of different food molecules?CARBOHYDRATES are food molecules composed of carbon, hydrogen and oxygen.
They include monosaccharide and polysaccharides.
They provide immediate energy boost or short term energy storage for animals as well as long term energy storage for plants and animals.
PROTEINS are molecule composed of amino acids
They serve as catalysts which speeds up chemical reactions by lowering activation energy.
They are used to form bones and build muscles.
LIPIDS are a large group of molecules which are not soluble in water .They provide long-term energy storage for animals.
Therefore, based on these properties, the types of food to be taken are:
You needed a quick boost of energy - monosaccharideYou wanted to grow strong nails, you haven't eaten in days - proteinYou wanted to grow healthy hair - proteinYou had a race tomorrow afternoon -polysaccharideYou were getting ready for hibernation - lipidsYou wanted to get bigger muscles - proteinYour meal will be in a week - lipids.Learn more about carbohydrates, proteins and lipids at: https://brainly.com/question/1503
What are 2 possible phenotypes for ear wax
Any piece of data that can be used to support an assertion is
A)evidence.
B)a hypothesis.
C)a conclusion.
D)an observation.
when something accelerates then stops accelerating , what happens to the object?
Should existing structures build from CCA-treated wood be removed?
Which of these example of chemical change? Breaking glass melting ice on the windshield burning gasoline denting a bumper
Answer:
C Burning Gasoline
Explanation:
All the other answers aren't changing state, but burning gasoline is changing it's state because it was liquid than changed into a gas and fire chemical.
Is this statement true or false? Cnidarians help build up coral reefs. A. True B. False
Which of these fields is used to classify organisms? Question 3 options: genetics taxonomy anthropology botany
You need to measure the diameter of a soda can. Which measuring tool would produce accurate results that you would expect to be the same as those found by others? Your hand's span A string cut to the length of the tip of your finger to the bottom of your palm A meter stick with only centimeters A ruler with millimeters and centimeters
Chains of amino acids make___ which can join together to make a ____
Amino acids form chains called peptides, which can join together to form polypeptides. When many amino acids are linked, or when multiple polypeptides combine, they form proteins. The characteristics of a protein are determined by the sequence and arrangement of amino acids in the chain.
Explanation:Chains of amino acids form short chains called peptides. These peptides can join together to form longer chains, which are referred to as polypeptides. When the number of amino acids joined together becomes very large, or when multiple polypeptides are used as building subunits, the resulting macromolecules are known as proteins.
Each amino acid is attached to another amino acid by a covalent bond, known as a peptide bond, which is formed by dehydration synthesis. Dehydration synthesis in this context involves the carboxyl group of one amino acid combining with the amino group of another releasing a water molecule, hence the term dehydration. The process can continue, linking numerous amino acids together in a chain.
The sequence, number, and specifically the arrangement of these amino acids in the chain ultimately determines the protein's unique shape, size, and function.
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Early man removed salt from sea water by ____________.
Final answer:
Early man desalinated sea water primarily by boiling it off to extract salt, a process with historical evidence such as the Han-era deep drilling for salt brine. Other desalination methods throughout history have included freezing and reverse osmosis.
Explanation:
Early man removed salt from sea water by boiling off the water. This desalination process was essential for producing salt for food preservation and nutrition. Historical evidence, such as the Han-era practices, shows that ancient civilizations used techniques like deep drilling for salt brine and then boiling the water with natural gas to extract salt. This process can be likened to distillation, where the principle involves evaporating the water and then condensing it to leave behind impurities.
Moreover, desalination methods have evolved where various scientific principles have been applied. For instance, sea water can also be purified by freezing, a process where ice forms and leaves the salt and other impurities in the liquid water, or through reverse osmosis, which uses a semi-permeable membrane to separate salt from water.