Answers
Answer:
4
Explanation:
A simple trick for finding the number of offspring in a generation is counting the number of lines coming from the bar underneath that generation. A and B produced C, E, F, and H.
Related Questions
Which is most likely true of prokaryotic cells? A. They evolved on Earth before eukaryotic cells. B. Their DNA is contained in the nucleus. C. They are large, complex cells. D. Their organelles are surrounded by membranes.
Answers
Answer:
A. They evolved on Earth before eukaryotic cells.
Explanation:
Eukaryotic cells are more complex that prokaryotes so it would make sence taht they would have evolved before them.
Which process is represetned by the arrow in the diagram?
Energy Available
for Use by
Living Organisms
Energy
Stored in
Food
a)
growth
b) respiration
c) regulation
d) photosynthesis
Answers
Answer:
photosynthesis
Explanation:
photosynthesis is the process by which food is gotten from the sun
thinking about osmosis and tonicity of cells, what would you predict would happen to your body cells if the following occurred: you have the flu. high fever, lots of sweating (losing sodium ions from the body), terribly nauseous and throwing up (losing sodium ions from the body), and you can only drink plain water.
Answers
When considering osmosis and the tonicity of cells, certain factors such as having the flu, experiencing a high fever, excessive sweating (resulting in sodium ion loss), severe nausea, and vomiting (leading to sodium ion loss) can contribute to the swelling of body cells due to water diffusing into them.
Tonicity refers to the ability of a solution to cause a cell to gain or lose water through osmosis. When the surrounding solution has a lower solute concentration than the cell, water enters the cell, causing it to swell.
Conversely, when the surrounding solution has a higher solute concentration than the cell, water exits the cell, causing it to shrink.
In the scenario described, heavy sweating and frequent vomiting cause a significant loss of sodium ions from the body. Sodium ions, being the primary extracellular ion, play a crucial role in regulating water balance.
They are typically present in a solution combined with other ions like potassium and chloride.
An imbalance in the concentration of these ions affects tonicity. Sodium loss leads to a condition called hypotonicity, where the concentration of solutes in the extracellular fluid becomes lower than that in the intracellular fluid.
The excessive loss of sodium ions can result in the swelling of body cells. Since plain water lacks sufficient solutes to replace the lost sodium ions, water will diffuse into the cells through osmosis, causing them to swell.
This swelling not only affects comfort but can also have serious health consequences. Excessive cell swelling may lead to cell rupture, and if brain cells swell, it can cause brain damage.
Therefore, it is important to address the underlying cause of sodium ion loss and ensure proper hydration with electrolyte-rich solutions to maintain appropriate tonicity and prevent detrimental effects on cell function and overall health.
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HELPPPP PLEASE TS DONT MAKE SENSEEE
On Isle Royale, and island in Lake Superior, the populations of wolves (the predator) and moose (the prey) rise and fall in cycles. Below is the amount of wolves and moose per year.
1985: 22 Wolves, 976 Moose
1990: 15 Wolves, 1,315 Moose
1995: 16 Wolves, 2,117 Moose
2000: 29 Wolves, 2,007 Moose
2005: 30 Wolves, 540 Moose
2010: 19 Wolves, 510 Moose
2015: 2 Wolves, 1,300 Moose
What patterns do scientists observe between predator-prey relationships like the wolves and moose on Isle Royale?
Answers
A portrait without its frame has a height 1. 5 times ots width w, in inches. Its frame is 2 inches wide all along its perimeter. What is and expression for the area of the framed portraut in terms of w? Simplify your expression and write it in standard form
Answers
The expression for the area of the framed portrait in terms of the width w is (w + 4)(1.5w + 4).
The width of the portrait is given as w, and since the height is 1.5 times the width, the height can be expressed as 1.5w. The area of the portrait without the frame is given by the product of the width and height, which is w * (1.5w) = 1.5w^2. To find the area of the framed portrait, we need to consider the frame, So, the width of the framed portrait would be (w + 2 + 2) = (w + 4) inches, and the height would be (1.5w + 2 + 2) = (1.5w + 4) inches. The area of the framed portrait is then calculated by multiplying the width and height of the framed area, which gives us (w + 4)(1.5w + 4). we can expand it by using the distributive property, which results in 1.5w^2 + 4w + 6w + 16. Combining like terms, the expression simplifies to 1.5w^2 + 10w + 16.
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The frequency of two alleles in a gene pool is 0.17 (A) and 0.3 (a.) assume that the population is in Hardy-Weinberg equilibrium calculate the percentage of heterozygous individuals in the population.
28% 1% 31% or 46%
Answers
The correct answer based on the calculation would be approximately 10.2% heterozygous individuals in the population. The correct answer is 10%.
To calculate the percentage of heterozygous individuals in a population in Hardy-Weinberg equilibrium, we can use the formula 2pq, where p represents the frequency of one allele (A) and q represents the frequency of the other allele (a).
Given that the frequency of allele A is 0.17 and the frequency of allele A is 0.3, we can calculate:
p = 0.17
q = 0.3
Now, we can substitute these values into the formula:
2pq = 2 \(\times\) 0.17 \(\times\) 0.3 = 0.102
Therefore, the percentage of heterozygous individuals in the population is 0.102 \(\times\) 100 = 10.2%.
Based on the given answer choices, none of them exactly match the calculated value.
The closest option is 1%, but it does not match the calculated percentage accurately. It's possible that there may be a typographical error or slight deviation in the provided answer choices.
The correct answer based on the calculation would be approximately 10.2% heterozygous individuals in the population.
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Question
The frequency of two alleles in a gene pool is 0.17 (A) and 0.3 (a.) assume that the population is in Hardy-Weinberg equilibrium calculate the percentage of heterozygous individuals in the population.
28% 10% 31% or 46%
A new species of vine is accidentally introduced into a forest by campers. The vine grows quickly up the trunks of native trees, gradually killing them by interrupting the growth of branches and leaves. Which of the following best describes how natural selection will affect the population of trees in this forest?
A. The best adapted trees will survive and pass their existing traits to offspring.
B. Only new species of trees will be able to compete with the vine.
C. The vines and trees will interbreed and produce a new species.
D. Offspring of the trees will be genetically identical.
Answers
Answer:c
Explanatioohggcggh
The best description, of how natural selection will affect the population of trees in this forest, is the vines and trees will interbreed and produce a new species.
What is natural selection?Natural selection is a mechanism in which only those animals or plants survive which adapt to the changes in environment.
Thus, the correct option is C. The vines and trees will interbreed and produce a new species.
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Scientists remove the gene Gclc from T-cells in a mouse. Which of the following will happen?
a.The mouse will make too much glutathione.
b.The mouse will die.
c.The mouse will make normal glutathione.
d.The mouse will not make glutathione.
Answers
The removal of GCLC gene from the T cells of the mice will result in: (d.) The mouse will not make glutathione.
HCLC gene encodes the information for the synthesis of the enzyme glutamate cysteine ligase. This enzyme is crucial as it catalyzes the rate-limiting step of the process of synthesis of glutathione. Hence, if the gene in knocked out from the mice, no glutathione will be formed.
Glutathione is an antioxidant made from the amino acids glycine, cysteine, and glutamic acids. It helps in protecting the body of living organisms from harmful substances like reactive oxygen species, free radicals, peroxides, etc.
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Meiosis is considered a reduction division because:
A. only occurs when a mutation triggers it.
B. reduces the number of cells.
C. results in haploid cells.
D. results in diploid cells.
Answers
Answer:
B I believe
Explanation:
it's called the reduction division bc it reduces the number of chromosomes
How is a male pelvis different from female?
Answers
Answer:
it is narrower
Explanation:
Pelvises from women are wider to make birthing easier.
In Aerobic Respiration, which of the following is(are) required for ATP production in the electron transport chain?
A: A Proton Gradient
B: Oxygen
C: The oxidation of the electron carrier molecules
D: Movement of electrons through proteins
E: All of the answer choices are correct.
Answers
In Aerobic Respiration, all of the following are required for ATP production in the electron transport chain. The correct option is E
What is Aerobic Respiration ?Aerobic respiration is a metabolic process that takes place in the presence of oxygen and it is the process by which cells convert food molecules, such as glucose into usable energy in the form of ATP (adenosine triphosphate). It is the most efficient process of cellular respiration and occurs in the mitochondria of eukaryotic cells and in the cytoplasm of prokaryotic cells.
Aerobic respiration is a highly efficient process that produces a large amount of ATP, which is used by cells for various metabolic processes such as muscle contraction, protein synthesis, and the active transport of ions across cell membranes.
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The Alvarado family’s income is above the low-income category. However, they still cannot afford private healthcare insurance. Which insurance program could cover Liza’s children’s medical costs?
Answers
Answer: Medicaid
Explanation:
How does the nervous system influence the respiratory system? (1 point)
O regulates heart rate
O stimulates pathogen response
O controls muscle contraction
o regulates breathing rate
Answers
Answer:
The nervous system influence the respiratory system by regulating breathing rate.
Explanation:
The respiratory system is controlled by the nervous system, which consists of two branches - the sympathetic and parasympathetic nervous systems. In addition the respiratory centers of the brainstem is responsible for the regulation of breathing patterns.
biological membranes are present in all cells, and they make up the endomembrane system of eukaryotic cells. they have many functions, including acting as barriers that selectively allow the transport of small molecules and ions into and out of the cell or organelle. a biological membrane is a bilayer that contains lipids with
Answers
biological membranes are present in all cells, and they make up the endomembrane system of eukaryotic cells. they have many functions, including acting as barriers that selectively allow the transport of small molecules and ions into and out of the cell or organelle. a biological membrane is a bilayer that contains lipids with various proteins.
The cell is the smallest unit of tissue that makes up living things. The cell is the basic structural and functional unit of the organism in which life functions are carried out. Cells have three main parts, namely the cell membrane, the cell nucleus, and the cytoplasm.
The biological membrane or cell membrane is the membrane that is on the outside of the cell. This membrane functions to separate the contents of the cell such as organelles, the cell nucleus, the cytoplasm and the outer environment of the cell. The cell membrane consists of a double layer of phospholipids with hydrophobic tails and hydrophilic fatty heads.In addition, the cell membrane also consists of various proteins that function as carriers of certain molecules across the membrane and become receptors that detect and transmit chemical signals in the cell environment.
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8. Continental drift states that continents have moved (quickly or slowly) to their current location.
Answers
Answer:
Respondent agreed the continental drift theory, which stated that continents are constantly moving on Planet's crust. Pangaea started to break up over time, and the continents gradually shifted to their current locations.
Explanation:
The chemical energy in a battery is transformed into electrical energy used to power a cell phone. Which statement about this transformation is true?
A small amount of energy is destroyed during the transformation.
A large amount of energy is created during the transformation.
The energy is restored to its original form during the transformation.
The total amount of energy remains the same during the transformation.
Answers
Answer:
The total amount of energy remains the same during the transformation.
Explanation:
Which of the following diagnostic properties allow you to correctly identify calcite? Select all that apply. a) Reaction to acid b) Cleavage - 3 planes not at 90 degrees c) Hardness - it can't be scratched by a fingernail and it can't scratch glass d) Fracture e) Cleavage - 3 planes at 90 degrees f) Color
Answers
a) Reaction to acid, c) Hardness - it can't be scratched by a fingernail and it can't scratch glass, d) Fracture.
Calcite is a common mineral that has a number of diagnostic properties that can be used to identify it. These properties include:
Reaction to acid: Calcite reacts with acid to produce carbon dioxide gas and water.
Hardness: Calcite is very hard and can't be scratched by a fingernail or glass.
Fracture: Calcite often exhibits conchoidal fracture, which is a smooth, curved fracture that resembles the shape of a shell.
Color: Calcite is often white or clear, but it can also be colored by impurities.
Calcite does not have cleavage in three planes at 90 degrees, so option e) is incorrect.
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Select the condition that is necessary for natural
selection to occur within a population
Environmental pressures must be
causing some individuals to adapt and
reproduce.
Several species must have recentlv
become extinct
Variation of traits must exist in the
population.
Answers
reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
What are the conditions of natural selection?Natural selection is a simple mechanism that causes populations of living things to change over time. In fact, it is so simple that it can be broken down into five basic steps, abbreviated here as VISTA: Variation, Inheritance, Selection, Time and Adaptation.Evolution by natural selection is the inevitable consequence of three simple conditions: variation, inheritance, and differential reproductive successResource availability – Presence of sufficient food, habitat (shelter / territory) and mates. Environmental conditions – Temperature, weather conditions or geographical access. Biological factors – Predators and pathogens (diseases)Genetic variation by itself will not result in natural selection unless it exerts some impact on organism survival and reproduction. However, any time all of Darwin's postulates hold simultaneously—as they do in most populations—natural selection will occurTo learn more about natural selection refers to:
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explain the stages involved in testing a piece of onion for reducing sugar
Answers
Onions contains reducing sugars which include fructose, and glucose.
Steps involved in testing for reducing sugarReducing sugar are those sugars that contains free aldehyde groups which can be reduced further in a reaction.
Examples include of simple reducing sugar include fructose and glucose.
The steps that are involved in testing for the reducing sugar include the following:
Cut the onion into small pieces and put into a test tube.Add a few drops of Benedict's solution to the food solution. Heat the test tube in a water bath. If the solution turns orange-red, the food contains sugar.Learn more about sugars here:
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Dr. Henderson teaches astronomy. She used to keep a model of Mars on the edge of her desk, but one day she decided to hang it up so that her students could see it better. She used a string to tie the model to a hook in the ceiling. A few days later, the string came loose and the model fell to the ground.
When was the most gravitational potential energy stored between the model and Earth? Assume that the model's mass did not change.
A.when the model was on the edge of Dr. Henderson's desk
B.when the model was hanging from the hook
C.when the model was about to hit the ground
Answers
I saw a lot of this question with incorrect answers "In which direction does the head of the molecules of the plasma membrane face?" The answer is that it is facing either the middle or outside, because both the outside and middle (cytoplasm) have water. The heads are attracted to this water.
Answers
Answer:
Thx
Explanation:
Sickle-cell anemia is a genetic disease that causes red blood cells to have an odd shape. The odd shape prevents the blood cells from carrying as much oxygen as they should. What is the most likely cause for this disease?
Answers
Answer:
look below
Explanation:
"Normal red blood cells are rounded and disk-shaped. In sickle cell anemia, some red blood cells become deformed, so they look like sickles used to cut wheat. These unusually shaped cells give the disease its name. Sickle cell anemia is one of a group of disorders known as sickle cell disease."
The Jewish belief in a single god was significant because what?
Answers
it spread the idea that there was only one correct set of beliefs
Answer:
Jews believe that there is a single God who not only created the universe, but with whom every Jew can have an individual and personal relationship. They believe that God continues to work in the world, affecting everything that people do. The Jewish relationship with God is a covenant relationship. (change up some words)
Monoclonal antibodies and __________ can be used to treat certain types of cancers in a process known as immunotherapy.
Answers
Monoclonal antibodies and cytokines can be used to treat certain types of cancers in a process known as immunotherapy.
What is cytokines?Cytokines are small, adaptable proteins that are essential for cell signaling. Cytokines and other peptides cannot get through the lipid bilayer of cells to the cytoplasm. Cytokines have been shown to take part in autocrine, paracrine, and endocrine signaling as immunomodulating agents. A specific class of proteins produced by some immune and non-immune cells that have an impact on the immune system. The immune system is stimulated by some cytokines while suppressed by others. To help the body's defenses against infections, cancer, and other ailments, they can also be produced in a lab.The term "cytokine" is a catch-all name for tiny secreted proteins that play a critical role in regulating inflammation. When pathogens invade, cytokines are made in order to activate, draw in, and multiply immune cells.
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How do cells maintain water balance through osmosis? (Choose 2)
If a salt water fish is placed in a fresh water aquarium, water will leave the fish's cells.
In the experiment, the only isotonic solution was the 10% salt water solution.
The egg swelled in distilled water because it is hypotonic to the egg's interior.
The concentration of solute is greater inside the egg than it is in the Kayro syrup.
The egg swells when placed in a hypertonic solution.
Answers
Answer:
The egg swelled in distilled water because it is hypotonic to the egg's interior.
Explanation:
That's one of them. Im sorry i dont know the other
by convention, the sequence of bases in a nucleic acid is usually expressed as: the ___________ direction.
Answers
Answer:
5' to 3'
Explanation:
eceptor potentials... Select one: a. Are always excitatory b. Always triggers neurotransmitter release
Answers
Receptor potentials are not always excitatory and they do not always trigger neurotransmitter release. Receptor potentials are graded potential changes produced by sensory receptor cells in response to stimuli that are capable of initiating action potentials.
They are typically local changes in membrane potential that arise in the receptor terminal when it is stimulated. The size of the receptor potential is directly proportional to the strength or intensity of the stimulus received. It is not a binary event but it is graded. Receptor potentials are an early stage in the process of sensory transduction and are essential for the process of encoding sensory information that the nervous system will eventually interpret as specific perceptions.
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What is the thin layer of gray matter that composes the outer layer of the cerebrum
Answers
Which statement correctly describes a property of enzymes? A Enzymes react at identical rates under all circumstances. B Enzymes are destroyed and then reformed after each reaction. C Enzymes form permanent structures when they bind to substrates. D Enzyme structures are specific to the type of substrate they bond to.
Answers
Answer:
It's either A or D
Explanation:
A statement which correctly describes a property of enzyme is: D. Enzyme structures are specific to the type of substrate they bond to.
An enzyme refers to a biological catalyst that is typically used to speed up (accelerate) the rate of a chemical reaction by lowering the activation energy of its reactants.
Basically, the rate of a chemical reaction would be faster when its activation energy of is low. Thus, an enzyme speeds or catalyzes the rate of a chemical reaction by lowering its activation energy.
On a related note, if the conditions are not optimal for an enzyme, it limits the ability of an enzyme to bind or be joined with its substrates.
This ultimately implies that, enzyme structures are specific to the type of substrate they bond to and depending on the particular chemical reaction.
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what type of organisms take in atmospheric carbon dioxide?