Charles Darwin has the first or the origin of the bipedalism hypothesis. Human beings are compared to apes and he also suggested enormous brain and upright locomotion were link. He also suggested human evolved into larger brains when still ape-like-tree-dwellers. Humans are bipedal because they have free hands to carry and manipulate tools and having tool-use, lost their project canning.
Charles Darwin posited that humans evolved from great apes and that bipedalism involved complex anatomical changes. The savanna hypothesis suggests bipedalism was an adaptation to a savanna habitat, with Homo erectus showing efficiency in bipedal locomotion almost equal to modern humans.
Explanation:Charles Darwin hypothesized about the origin of bipedalism as part of his broader theory of evolution outlined in The Descent of Man. He argued that humans are descended from other hominids like the great apes. Darwin's ideas led to the development of modern biological science and the understanding that the evolution of bipedalism required complex anatomical changes, like the angling of the femur, the evolution of spinal curves, and the realignment of the toe.
Some of the hypothesized advantages of bipedalism included the ability to free hands for tool use, improved energy efficiency, and better thermoregulation by exposing more of the body's surface to the environment. The savanna hypothesis suggests that bipedalism evolved as an adaptation to a savanna habitat. The concepts of the stance leg and step leg are central to understanding bipedal locomotion, with anatomical changes evident in early hominins indicative of this mode of movement.
The most striking evidence of early hominin bipedalism was discovered by Mary Leakey with the Laetoli footprints depicting a modern striding gait. Over time, hominin species such as Homo erectus developed anatomical features that made them nearly as efficient at bipedal locomotion as modern humans. These findings underscored the fundamental shifts in early human ancestors that facilitated upright walking.
What arrangement of electrons would result in a nonpolar molecule
Nonpolar molecules can occur when elements share electrons equally, forming nonpolar covalent bonds. The orientation of bonds in a molecule can also cause overall nonpolarity if the electronegativity or bond moments cancel each other out.
Explanation:A nonpolar molecule occurs when electrons are shared evenly between atoms, as in a nonpolar covalent bond. An example is molecular oxygen (O₂), the electrons distribute equally between the two oxygen atoms. Another factor that influences polarity is the geometry of the molecule. If bond moments cancel each other out due to their arrangement or direction (vector sum equals zero), then we get a nonpolar molecule. For instance, Carbon Dioxide (CO₂) has polar bonds but the molecule itself is nonpolar because it is linear, with the polar bonds on opposite sides canceling each other's effects.
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What type of protein penetrates to the interior of the plasma membrane but does not extend all the way through it?
What prediction could you make on the basis of the "recognition-via-multiple-views" approach to object recognition?
How does accuracy differ from precision in a scientific measurement ?
Accumulation of undigested molecules would most directly be an indication of _____ dysfunction.
Answer:
Lysosomal
Explanation:
Which is most likely the length of a students textbook
Answer:
approximately 30 cm
Explanation:
Length is defined as extent of something from end to end. It is a measure of distance and the unit of length is meter(m) that is a base unit.
Measurement is defined as a collection of numerical data that is to describe a property of an object. It is by comparing the quantity with the standard unit. According to International system of units there are seven base units for all types of physical measurements , the kg for mass, the meter for distance, the candela for luminous intensity, the ampere for current, the kelvin for temperature, the second for time and the mole for amount of a substance.
When is the preparation of a wet mount slide for observation appropriate?
Which is a component of a phospholipid?
Answer:
Hydrophilic head
Explanation:
Animal cells have which of the following characteristics? Select all that apply. no cell wall chloroplasts no large vacuole, only small ones cell plates and no centrioles in cell division cleavage furrows
Animal cells have the following characteristic: they have no cell walls. Animal cells have a plasma membrane that surrounds the cell and is made from a double layer of lipids, nucleus, cytoplasm, which is the internal area of the cell that isn’t occupied by the nucleus, mitochondria, which are the organelles that break down sugars and other compounds into cellular energy., ribosomes, lysosomes,...
What could you do to determine whether the outliers in model 2 are authentic measurements?
Determine the authenticity of outliers in a model by measuring the vertical distance from data points to the line of best fit, observing changes in correlation coefficient, and reevaluating your data collection methods if observed values differ significantly from predicted values.
Explanation:To determine whether the outliers in model 2 are authentic measurements, you could employ several strategies. First, calculate the vertical distance from any data point to the corresponding point on the line of best fit. If the distance is equal to or greater than 2s, it's a potential outlier. This numerical identification of outliers is key.
Second, examine the change in the correlation coefficient, r, the strength of the linear relationship between variables. Software, calculators, and regression analysis can be helpful to identify outliers and determine their influence. This analysis shows how excluding an outlier impacts the correlation amongst the variables and the fit of the model.
Lastly, if an observed value does not match the predicted value, reevaluate the data collection process. Inconsistent results among sample data could signify the need for reevaluation of the measurement processes or a recheck of the accuracy of information provided.
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What is photoexcitation
When we don't consume enough carbohydrate, what substances does the body produce as an alternative fuel?
What is a set point and to what degree are key survival parameters?
Israelite law demanded scrupulous care in the treatment of the blood of slain animals. what reason for this is given in leviticus?
what type of monomer is alanine
What is the one thing every living thing must either make or get from another living thing?
Which level of biological organizations is the simplest level at which a structure can support life functions /5182532/b6003118?utm_source=registration
What factors should be considered when determining the amount of food servings you need each day?
A. Your age
B. Your sex
C. Your daily amount of activity
D. All of the above
What medical term means the process by which food is burned to release energy:?
The medical term that means the process by which food is burned to release energy is cellular respiration.
Explanation:The medical term that describes the process by which food is burned to release energy is cellular respiration.
Cellular respiration is a set of metabolic reactions that take place within the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), which is the form of energy used by cells. This process occurs in the mitochondria of cells and involves the breakdown of glucose molecules to release energy.
Examples of the products of cellular respiration include carbon dioxide, water, and ATP. Overall, cellular respiration is essential for the survival and functioning of living organisms.
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Metabolism is the medical term for the process by which food is burned to release energy.
Explanation:The medical term that means the process by which food is burned to release energy is metabolism. Metabolism is the conversion of food into energy given off by heat, work done by the body's cells, and stored fat. It is an oxidation process in which the chemical potential energy of food is released.
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Why it important to write a clear, complete hypothesis before you begin an interview investigation?
What effects have science and technology had on humans and other organisms?
The effects that science and technology had given on humans and other organisms is that they were able to provide health care in a way of fighting certain disease or illness in prolonging life, another way is transportation—to make it easier for a person to transport without having to go through a hard time. Another factors are communication, exploration and even agriculture. They were able to provide methods in making certain things to be done easy and without having to go through hard methods.
A major unit of the genetic code is called a(n) _____.
A. chromosome
B. genome
C. RNA
D. gamete
Answer:
A
Explanation:
Identify one general effect of overuse of an environmental resource.
Overuse of environmental resources results in environmental degradation, where resources are exploited at unsustainable rates, leading to a decline in their quality and availability.
One general effect of overuse of an environmental resource is environmental degradation. This occurs when the unsustainable exploitation of resources, such as over-harvesting or intensive farming, leads to a decline in the quality and availability of those resources. For example, continuous over-fishing can reduce fish populations to the point where they cannot replenish themselves, transforming a renewable resource into a non-renewable one.
Why do we learn about STERNGRR in biology class?what does it describe
STERNGRR is an acronym in biology that outlines the fundamental characteristics of life, namely Synthesis, Transport, Excretion, Respiration, Nutrition, Growth, Reproduction, and Regulation. It aids in the comprehensive understanding of life's organization, behaviors, and evolutionary principles pertinent to diverse organisms.
Learning about STERNGRR in biology class is important because it describes the fundamental characteristics of life. These include Synthesis, Transport, Excretion, Respiration, Nutrition, Growth, Reproduction, and Regulation. This acronym helps students understand how organisms are similar and different in the way they deal with the business of living. For instance, when studying biological anthropology, it aids in comprehending our species' origin, anatomical features, morphological changes, and life's biodiversity. Moreover, biology courses highlight how evolution and natural selection have led to Earth's diverse life-forms, understanding which is critical for our appreciation of biology's scope and relevance in multiple fields such as medicine, environmental science, and technology.
The knowledge of STERNGRR contributes to our grasp of complex biological processes, enabling us to think like scientists when evaluating claims related to health and nutrition. It illustrates why certain anatomical traits are adaptive, how structure relates to function, and why some anatomical traits persist. By studying STERNGRR, students gain a comprehensive perspective on life's organization and behavior that encompasses a wide range of organisms, from the familiar to the obscure.
Dna repair enzymes will be highly active during what phase of the cell cycle?
DNA repair enzymes are most active during the G2 phase of the cell cycle, ensuring that DNA replication errors are fixed before the cell enters mitosis.
DNA repair enzymes are highly active during the G2 phase of the cell cycle. This phase occurs after DNA has been replicated in S-phase and before mitosis in M phase. It is a crucial period where the cell checks the fidelity of DNA replication and repairs any errors that have occurred. The cell cycle includes a checkpoint in G2 that ensures DNA is correctly replicated and undamaged before the cell progresses to mitosis.
The G2 phase is when homologous recombination repair typically occurs, especially after chromosome replication. This is because the sister chromatids, which serve as templates for accurate repair, are readily available. Likewise, other DNA repair mechanisms, like non-homologous end joining (NHEJ), are active throughout the cell cycle, but homologous recombination (HR) is particularly important and active in the G2 phase when the sister chromatids can be used for repair.
It's vital for the cell to fix DNA damage before proceeding to mitosis to prevent the propagation of genetic errors to daughter cells, which could lead to cell dysfunction or disease. Should DNA repair not be successful, the cell may enter into apoptosis to avoid passing on the damage.
How can scientific tools, such as graduated cylinders and triple-beam balances, assist scientists?
Scientific tools like graduated cylinders and triple-beam balances assist scientists in order to measure the volume of the liquid and mass of any substance more accurately and precisely.
What do you mean by Scientific tools?Scientific tools may be defined as the types of tools or instruments that are significantly utilized in numerous scientific purposes like the collection of accurate data and information as well as in the study of both natural phenomena and theoretical research.
A triple beam balance is an instrument that is utilized for measuring the mass of any substance very precisely. Such types of devices generally have a reading error of ±0.05 grams.
While graduated cylinders are utilized for measuring the volumes of liquids. Such types of tools are not intended to be used for mixing, stirring, heating, or weighing.
Therefore, scientific tools like graduated cylinders and triple-beam balances assist scientists in order to measure the volume of the liquid and mass of any substance more accurately and precisely.
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How can we use the relationship among weather data to produce a forecast?
A forest was completely destroyed by a volcanic eruption. All living organisms were killed. Then, due to the arrival of propagules carried by birds from nearby areas, certain plant species started growing in the forest. These species have started colonizing the forest because they could survive the harsh conditions of the forest. They also facilitated the growth of other species. What stage of succession is taking place in the forest? competition nudation ecesis reaction
Answer:
Competition.
Explanation:
In this place a secondary succession occurs that happens in an environment that was previously occupied by other communities and that suffered some type of disturbance, in this case, the area was devastated by a volcanic eruption.
A secondary succession begins with the "nudation" phase which is the succession after a disturbance and the emergence of a site devoid of life. It continues with the "migration" that is the arrival of propagules to the environment.
Then comes the "ecese" which is the establishment and growth of the first pioneer plants. It continues with "competition" in which the establishment of new species causes competition for space, light and nutrients.
milk of magnesia is sometimes used as remedy for "acid stomach". Would you expect the of milk of magnesia to be less the 7, more than 7 or 7? Why?
What do scientists use to divide the geologic time scale? Major divisions in the fossil records Major divisions in the sedimentary rock layers Evidence for catastrophic events in Earth's history Major changes in mineral deposits in the rock layers