Answer: Birds and butterflies have homologous organs, which indicate they share a common ancestor.
Explanation:
Darwin proposed a new theory of how evolution works. What theory is this?
Answer:
darwinism
Explanation:
also known as survival of the fittest
he studied birds and how they had adapted to their climates and surroundings.
What are the three ways thermal energy is transferred
When a muscle is stimulated to contract aerobically, less lactic acid is formed than when it contracts anaerobically because:_____________. 1. glycolysis does not occur to significant extent under aerobic conditions. 2. muscle is metabolically less active under aerobic than anaerobic conditions. 3. the lactic acid generated is rapidly incorporated into lipids under aerobic conditions. 4. under aerobic conditions in muscle, the major energy-yielding pathway is the pentose phosphate pathway, which does not produce lactate. 5. under aerobic conditions most of the pyruvate generated as a result of glycolysis is oxidized by the citric acid cycle rather than reduced to lactate.
Answer:
5. under aerobic conditions most of the pyruvate generated as a result of glycolysis is oxidized by the citric acid cycle rather than reduced to lactate.
Explanation:
The contraction of muscles occurs in the presence of Adenosine Triphosphate (ATP) because ATP supplies the muscles with the energy they require for contraction.
Muscles can undergo contraction Aerobically ( in the presence of oxygen) or Anaerobically ( in the absence of oxygen).
When a muscle is stimulated to contract aerobically, less lactic acid is formed than when it contracts anaerobically because under aerobic conditions most of the pyruvate generated as a result of glycolysis is oxidized by the citric acid cycle rather than reduced to lactate.
The branch of science which deals with a living being is called biology.
The correct answer is E.
The process of breakdown of the glucose molecule into pyruvic acid is called glycolysis. The process of glycolysis is done under the aerobic reaction. The reaction which took place in presence of air is called aerobic reaction.
In this process, Glucose is completely digested into carbon dioxide, water, and energy. Hence, the lactic acid is not formed.
The lactic acid is formed due to a lack of oxygen and leads to incomplete oxidation.
Hence, the correct answer is E that is under aerobic conditions most of the pyruvate generated as a result of glycolysis is oxidized by the citric acid cycle rather than reduced to lactate.
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Kendra often has her hair in her hands and pulls at it. When she is nervous, she tends to pull some of it out, which helps her feel better. Most of the time she does not even realize she is doing this. Which diagnosis would Kendra likely receive?
True / False.
Answer:
The correct answer is trichotillomania.
Explanation:
A hair-pulling disorder also termed as trichotillomania refers to a mental condition that comes under Obsessive-Compulsive and associated disorders. The person suffering from the condition has an irresistible desire to pull hair from different parts of the body like eyebrows, scalp, and eyelids.
The condition results in partial or complete removal of the eyelashes and eyebrows, while if one pulls hair from the scalp it can lead to different degrees of hair loss patches. The condition often interferes with the occupational and social functioning of the individual.
which statement best describes a climax community
Answer:
Climax communities contain few species, including those with large body sizes. Climax communities contain few species and include only those with small body sizes. Climax communities contain many species, including those with large body sizes.
Explanation:
If there were no decomposers, which of the following would most likely happen?
Answer: i would think that the earth would naturally ware it down over time if there are no decomposers
Explanation:
Answer:
Some plants might die due to a shortage of important nutrients.
Reproductive technologies allow culture to shape biology. These technologies are not new, but they are rapidly expanding. Identify the following technologies as either having existed for a long time in various forms and in various cultures, or as new technologies that have emerged over the last thirty years.
1. contraceptives
2. thirty years
3. cesarean surgeries
4. in various cultures for many years
5. DNA testing for paternity
6. testing for the sex of unborn children
7. abortion
Answer:
Technologies that have been in existence for long:
1. Use of Contraceptives
2. Abortion
3. Cesarean section
New technologies over the last 30 years includes:
1. Paternity testing
2. Tests to know the sex of an unborn child.
Explanation:
Those reproductive techniques are aimed at their ability to provide safe and affordable care during pregnancy and to provide these pregnant women with healthy and strong babies.
For older technologies:
Contraception allows people to control fertility. An abortion performed by a licensed professional is used to end pregnancy. Cesarean section means surgical removal of the baby from the womb.For new technologies:
Paternity testing means using DNA to determine whether a man is a biological parent of a child. Have gender tests before delivery to see if the child is a boy or girl. Artificial insemination is the process of reproduction where the sperm directly enters the woman's uterus for the purpose of pregnancy.What shows a brain structure correctly paired with one of its primary functions?
Answer:
What shows a brain structure correctly paired with one of its primary functions? frontal lobedecision making
Explanation:
Frontal lobedecision making shows a brain structure correctly paired with one of its primary functions. Frontal lobes and limbic system are involved in he establishment and expression of emotions. Temporal and frontal lobes, for example, are the part of the brain actively involved in writing activities. Short-term memory information processing usually causes changes in the hippocampus.
Answer:
Possible options:
A) frontal lobedecision making
B) occipital lobecontrol of skeletal muscles
C) temporal lobevisual processing
D) cerebellumlanguage comprehension
E) occipital lobespeech production
Answer is A) frontal lobedecision making
Explanation:
The frontal lobes are involved in motor function, problem solving, spontaneity, memory, language, initiation, judgment, impulse control, and social and sexual behavior.
Which of the following is NOT true about cells? (PLEASE ANSWER ASAP!!)
A. Cells never change.
B. Cells come from pre-existing cells.
C. The time it takes a cell to complete the cell cycle depends on the type of cell that is diving.
D. A cell spends most of its life in interphase.
The statement which is not true about cells is cells never change. Thus, option A is correct.
What is cell?The cell function of an animal cell that has been to perform like the hormone and it engage the production of the energy for the cells. The cell function of a plant cell is to carry out all of the functions necessary for survival.
Animal cells are the eukaryotic cells which has been surrounded by the plasma membrane. It contains the nucleus, and the organelles that are membrane bound. Plant cells are the basic building block of plant life and they include the cell wall and central vacuole which works together to give the cell rigidity.
Therefore, The statement which is not true about cells is cells never change. Thus, option A is correct.
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A feasible solution is a(n) __________ if there are no other feasible solutions with a better objective function value in the immediate neighborhood.
a. local optimum
b. global maximum
c. efficient frontier
d. diverging function
Answer:
the answer is C, eddicient frontier
Explanation:
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Answer:
2nd one
Explanation:
Which two space centers are located in Florida? US Space and Rocket Center and Ames Research Center Great Lakes Science Center and the Jet Propulsion Laboratory Kennedy Space Center and Cape Canaveral Air Force Station Armstrong Flight Research Center and Wallops Flight Facility
Answer:
it's the John f. Kennedy space center
Explanation:
brainy
Answer:
Kennedy Space Center and Cape Canaveral Air Force Station
Explanation:
A young woman had a baby and wished to collect child support from the father. Her blood type is AB and the baby's blood type is A. There are two possible fathers: Jim (who is type A) and Michael (who is type B). Which man could be the father?
a. either
b. neither
c. Jim
d. Michael
e. not enough information provided to answer the question.
Answer:
E i believe
Explanation:
AB crossed with A produces two possibilities but it depends on whether Jim’s genotype is AA or Ai. Same for Michael, it depends if he is BB or Bi.
What is the main difference between the Grasslands and the Savanna?
what’s gene frequency in biology?
Answer:
Frequency, or gene frequency, is the relative frequency of an allele
Explanation:
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According to the oxygen-hemoglobin dissociation curve, PO2 in the lungs of 100 mm Hg results in Hb being 98% saturated. At high altitude, there is less O2. At a PO2 in the lungs of 80 mm Hg, Hb would be ________ saturated. According to the oxygen-hemoglobin dissociation curve, PO2 in the lungs of 100 mm Hg results in Hb being 98% saturated. At high altitude, there is less O2. At a PO2 in the lungs of 80 mm Hg, Hb would be ________ saturated. 95% 100% less than 50% 98%
Answer:
95%.
Explanation:
Oxygen-hemoglobin dissociation curve:
Oxygen-hemoglobin dissociation curve is basically a sigmoid curve which relates between the saturation of oxygen (SO2) and partial pressure of oxygen in blood (PO2). It shows the affinity of oxygen with hemoglobin at different temperature and other factors. In the oxygen-hemoglobin dissociation curve; saturated oxygen is ploted on verticle axis and partial pressure of oxygen in mmHg on the horizontal axis.
Here in the above scenario at the high altitude oxygen is less and at 80 mmHg, Hb would be 95% saturated.
1. Which of these terms means scratches in rocks caused by glaciers?
2 points
A. Striations
O
B. Stripes
O
C. Stratosphere
O
D. Stretch marks
Answer:
A. Striations
Explanation:
Final answer:
A. Striations are grooves or scratches in rocks caused by glaciers. They provide evidence for the direction and force of past glacial movements and are formed through glacial erosion processes like abrasion.
Explanation:
The term that means scratches in rocks caused by glaciers is Striations. These striations, or glacial striae, are lines or grooves cut into bedrock by debris that is carried along the base of a glacier. Evidence of this geological process includes not only the striations themselves but also rock flour, which is finely ground rock produced by glacial abrasion. Glacial striations are a key indicator of past glacial movement and can be found at various scales, from microscopic to several meters in depth and length. They offer clues indicating the direction of ice flow and can be used alongside other features, such as moraines and drumlins, to understand glacial processes.
This is a trait that is a blend of the dominant and recessive gene
Question is incomplete. The complete question is as following:
This is a trait that is a blend of the dominant and recessive gene; inheritance pattern where the phenotype of a heterozygote is intermediate between those of the two homozygotes; neither allele of the pair is dominant but combine and display a new trait.
Answer:
Incomplete Dominance
Explanation:
When two heterozgous alleles are shown together in the phenotype of an organsim, it is called Incomplete dominance. Each allele blend into a third phenotype which produces distinct phenotypes.
In incomplete dominance neither gene is fully recessive or fully dominant. for example Blue-feathered chickens which are produced by the fusion of black and a white chicken and none of the alleles is totally dominant.
Hence, the correct answer is Incomplete Dominance.
Final answer:
Incomplete dominance refers to a genetic situation where the heterozygous phenotype is an intermediary blend of dominant and recessive traits, like in snapdragons' flower color or human hair texture. In genetic crosses, this can be seen when a dominant allele and a recessive allele are expressed together, resulting in a mixed phenotype rather than exhibiting only the dominant trait.
Explanation:
When it comes to inheritance of traits, dominant and recessive genes play a crucial role. Dominant genes mask the presence of recessive genes in the phenotype. However, not all traits follow this simple pattern of dominance. The term incomplete dominance refers to a situation where the phenotype of the heterozygous genotype is a blend of the dominant and recessive traits. This is observed in the flower color of snapdragons, where crossing a red-flowered plant (CRCR) with a white-flowered plant (CWCW) results in pink-flowered offspring (CRCW), indicating an intermediate phenotype. Similarly, humans exhibit incomplete dominance in certain traits like hair texture, where wavy hair results from the combination of an allele for curly hair and an allele for straight hair.
When discussing genetic crosses, such as AaBbcc × AaBbCc or AaBbCc × AaBbCc, the alleles represent various genes that contribute to individual traits. A dominant allele like 'A' will mask the effect of its recessive counterpart 'a' creating a dominant phenotype. Conversely, when there is a recessive allele pair 'cc', the recessive trait will be expressed as there is no dominant counterpart to mask it. In cases of incomplete dominance, a hybrid of alleles, such as 'Cc', would result in a phenotype that is a mix of both traits.
Heart disease, diabetes, cancer, alcoholism, and many mental illnesses can best be described as __________. answer correct the results of an unhealthy lifestyle simple mendelian disorders multifactorial disorders with a possible polygenic component the symptoms of huntington's disease infectious diseases caused by microorganisms
Answer:
The preferable option for fill in the blanks will be-
Multifactorial disorders with a possible polygenic component
Explanation:
Heart disease, diabetes, cancer, alcoholism, and many mental illnesses can best be described as multifactorial disorders with a possible polygenic component.
The complex or multifactorial disorders are common medical problems like heart disease, type 2 diabetes, and obesity. These disorders do not have a single genetic problem because they are associated with the effects of multiple genes (polygenic). The polygenic effect combines with our lifestyle and environmental factors.Which of the following design genres is OUT in 2020?
traditional
bohemian
country chic
industrial
Answer:
traditional
Explanation:
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write a write a paragraph (3-5 sentences) that explains how and/or why the skull got its name and what language it comes from (like Latin, Greek, etc.) The scientific word for this is called etymology.
Answer:
Middle English scolle ; of unknown origin; compare with Old Norse skoltr . Skull came from both Greek and Roman but I'm pretty sure it originated from Greeks. The word skull is derived from the Middle English word skolle, which in turn is probably a form of the Old Norse word skalli, which means a bald head.
Explanation:
if the parents have ab and o blood type what type is the childs?
Answer:
parents with AB and O blood types can either have children with blood type A or blood type B. These two types are definitely different than parents' blood types!
hope i helped. if i can get brainliest that would be great
Answer:
Type A or B (only 2 highly possible blood types according to google lol)
What is the narrowing of the sphincter at the lower end of the stomach called?
a. Cirrhosis
b. IBD
c. Pyloric stenosis
d. Ulcer
The duct from the gallbladder to the common bile duct is the
a. common bile duct
b. pancreatic duct
c. cystic duct
d. hepatic duct
Which are the smallest of the salivary glands and are found under the sides of the tongue?
a. Palatine
b. Parotid
c. Sublingual
d. Submandibular
Answer:
Its d
Explanation:
I made a 100
What does an organisms phenotype describes
Answer:
An organisms phenotype describes its physical characteristics and traits like the color of your skin and hair.
Explanation:
yis
Answer:
B
Explanation:
Which observation about the phosphorus tracer supported the researchers' conclusion that DNA, and not proteins, transmits genetic information? A. It was in the supernatant only. B. It was in the pellet only. C. It was in both the pellet and the supernatant. D. It was in neither the pellet nor the supernatant.
Answer:
Hershey and Chase demonstrated that genetic material is contained in the DNA molecule. By using bacteriophages they observed that DNA, but not proteins, contains the genetic material. These researchers tagged DNA with radioactive phosphorus and then separated bacteria and protein phages by centrifugation, observing that bacterial pellet was radioactive
The radioactive phosphorus tracer was found only in the pellet (option B), indicating that DNA transmits genetic information.
Explanation:The observation that supports the researchers' conclusion that DNA, and not proteins, transmits genetic information is that the radioactive phosphorus tracer was found only in the pellet, which contained the heavier bacterial cells, and not in the supernatant.
This indicates that the genetic material, which carries information to produce more phage particles, is present in the pellet along with the bacterial cells. Since phosphorus is found in DNA but not proteins, the presence of the radioactive phosphorus in the pellet confirms that DNA is indeed the genetic material.
Metabolic acids __________. are acid participants in, or by-products of, cellular metabolism can leave the body by entering the atmosphere at the lungs are metabolized slowly are generated in small amounts during the catabolism of amino acids
Answer:
a. are acid participants in, or by-products of, cellular metabolism
Explanation:
cellular metabolism is the process in which several chemical recation stakes place in body. there aretwo type of cellular metabolism - catabolism and anabolsim, which serves for several body functions.
During the chemical reaction of cellular metabolism, many acids are produced which are called metabolic acids. Several metabolic pathways produces different acids such as carboxylic acid, citric acid and amino acid. All the metabolic acid maintains body's functional activities,if any case acid formation increases it causes metabloic acidosis.
Hence, the correct option is a. "Metabolic acids are the acid participants of celular metablosim".
The body’s most extensive serous membrane is the ___________. Connecting its visceral and parietal layers is a double serous sheet called __________, which provides a route for blood vessels, lymphatics, and nerves. Organs behind the parietal layers are called ___________; those within this area are called ___________.
Answer:
peritoneum
mesentery
retroperitoneal
intraperitoneal
Explanation:
The main source of energy for wind and ocean currents on Earth is
Answer:
the moons gravity
Explanation:
A botanist created a linear model to predict plant height from soil acidity (pH level) for a certain type of plant. The slope of the model was 2.5 centimeters per pH level, the standard deviation of the sample of plant heights was 4 centimeters, and the standard deviation of the soil acidity was 1 pH level. What is the value of the correlation coefficient?
Answer:
0.625
Explanation:
The slope (m) of a linear regression line is ...
[tex]m=r_{xy}\cdot\dfrac{s_y}{s_x}[/tex]
Then we have ...
[tex]2.5=r_{xy}\cdot\dfrac{4}{1}\\\\\dfrac{2.5}{4}=r_{xy}=0.625[/tex]
The value of the correlation coefficient is 0.625.
Here, we are required to find the value of the correlation coefficient given the slope of the regression model and the standard deviation of the dependent and independent variables.
The value of the correlation coefficient is 0.625
and it is dimensionless.
The relationship between the slope of a regression model and the correlation coefficient is given by;
m = r (Sy/Sx)
where
m= slope of the regression model = 2.5cm/pH.r = the correlation coefficient = ?Sy = The standard deviation of the dependent variable i.e Plant height = 4cmSx = The standard deviation of the independent variable i.e soil acidity(pH level) = 1pHTherefore;
2.5 = r × (4/1)
r = 2.5/4
r = 0.625
P.S: It is important to know that the correlation coefficient is a dimensionless parameter.
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When the diaphragm and external intercostal muscles contract, it
Answer:
The correct answer is: lets the air get inside the lungs.
Explanation:
The process of ventilation, or breathing, consists of two parts: inhaling and exhaling.
Inhaling is the name of the process that is responsible for the air entering the body by the respiratory tract. Exhaling is the opposite, it lets the air out. Both are equally important since they allow the gas exchange necessary for the oxygenation of the blood.
When inhaling, the diaphragm and the external intercostal muscles contract. This pulls the ribcage upwards and outwards, which increases lung volume while decreasing the air pressure inside.
Answer:
These are the mechanism of inspiration which increases the capacity of the thoracic cavity, for maximum volume of air to be inhaled during inspiration.
The contraction makes the diaphragm to move towards the abdominal cavity inferiorily creating the space for the distention of lungs during filling with air. When the external inter coastal muscles contracts, the rib cage is pushed upwards and outwards with the sternum remain fixed. This causes expansion of the rib-cage, with further widening of the thoracic cavity for maximum lung capacity.
Explanation: