Ardipithecus was the first species in which bipedalism first arrived and they lived in open savanna environment.
What is the evolution of bipedalism?
Bipedalism is the ability to stand and walk completely on two feet. The bipedal gait evolved 4 million years ago and is characteristic of modern humans. Efficient locomotion and empty and free hands are the main advantages of bipedalism.
Ardipithecus, the earliest known genus of the zoological family Hominidae (the group that includes humans and excludes the great apes) and the probable ancestor of Australopithecus, a closely related group often thought to be the ancestors of modern humans. Ardipithecus lived 5.8 to 4.4 million years ago, from the late Miocene. These were the first ones to develop bipedalism while continuing living in the open savannas.
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Which of these events is MOST likely to be followed by primary succession in the area where the event occurs?
(A) A fire burns most of the trees of a forest.
(B) Floodwaters cover and then drain away from a valley.
(C) A volcanic eruption covers a mountainside with molten rock.
(E) A farmer stops raising crops on a field.
(D) Snow covers a meadow during the winter.
A volcanic eruption covers a mountainside with molten rock is MOST likely to be followed by primary succession in the area where the event occurs.
What is a primary succession?Primary succession refers to the process of ecological succession that occurs in an area where no previous ecosystem existed. This process begins with the colonization of a previously unoccupied area, such as a new volcanic island or ash-covered land after a volcanic eruption, by pioneer species, which are typically hardy, fast-growing organisms that can tolerate harsh environmental conditions.
Over time, these pioneer species create a suitable habitat for other organisms, leading to the development of a more complex ecosystem. Primary succession is a gradual process that can take hundreds or even thousands of years to complete.
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How are hydrogen bonds involved in the structure of a protein?
Answer:
Hydrogen bonds are involved in the structure of a protein by holding the protein together.
Explanation:
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explain how enzymes work including the role of the active site brainly
Enzymes work by binding to the reactant molecules at the active site which results in the formation of an enzyme-substrate complex.
This is referred to as a biological catalyst which speeds up the rate of chemical reaction in the body. They are proteinous in nature and can be easily denatured when exposed to high temperature and other unfavorable conditions.
They do that by lowering the activation energy of the reaction and bind to the reactant molecules which is referred to as the substrate and results in the formation of the enzyme-substrate complex.
This complex results in the reaction being catalyzed under standard conditions such as the required temperature and concentration which is therefore the reason why it was chosen as the most appropriate choice.
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A nurse administers a prescribed loading dose of digoxin based on the understanding that doing so will result in:________
A nurse delivers a specific loading dose with digoxin with the knowledge that this will result in a faster reach of critical concentration.
What exactly is digoxin?Digoxin is a member of the digitalis glycosides class of medications. It is used to increase the heart's strength and efficiency, as well as to control the tempo as well as rhythm of the heart. This improves blood circulation and reduces swelling of the hands as well as ankles in cardiac patients. a medication prescribed to treat irregular heartbeats.
Why is digoxin never longer recommended?Digoxin's use is restricted because the medicine has a limited therapeutic index and requires continuous monitoring. Digoxin can induce a wide range of side effects, is implicated in numerous medication interactions, and also can result in toxicity. Despite its limitations, digoxin has a position in therapy.
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Because he has high blood pressure, jake watches his diet and takes antihypertension medication. these behaviors are examples of _____ prevention.
Because he has high blood pressure, jake watches his diet and takes antihypertension medication. these behaviors are examples of __Secondary___ prevention.
What is hypertension ?Hypertension, another name for high blood pressure, is elevated blood pressure. Depending on your activity, your blood pressure changes throughout the day. A diagnosis of high blood pressure (also known as hypertension) may be made if blood pressure readings are consistently above normal.
When symptoms do show up, they may include headaches in the morning, nosebleeds, irregular heartbeats, vision changes, and buzzing in the ears. Fatigue, nauseousness, vomiting, bewilderment, anxiety, chest pain, and trembling of the muscles are all symptoms of severe hypertension.Elevated blood pressure, which is regarded as prehypertension and puts a person at a higher chance of developing high blood pressure, hypertension stage 1, hypertension stage 2, and hypertensive crisis are the four stages of hypertension.Learn more about Hypertension here:
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Why are some clades very diverse and some unusually sparse?
older clades are more species rich because they have had more time to accrue diversity than younger clades
cladistics are a way of classifying animals based on the same traits they have like hair or claws
clades are a group of organisms believed to have evolved from a common ancestor, according to the principles of cladistics.
"the great ape and human clade"
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Unit Test
Topic Review Activity Active
1
A scientist asked a question that was based on an observation. What should the scientist do next?
O The scientist should form a hypothesis and design an experiment.
O The scientist should collect data and organize it into tables.
The scientist should draw conclusions based on the observation.
The scientist should record and communicate his hypothesis and results.
Answer: The scientist should form a hypothesis and design an experiment.
Explanation: E 2022
A person who has lost their sense of vision can still recognize people by their voices. Such a person uses.
Answer:
vibration of sound and blind stick
Explanation:
just like everyone dance with the vibrations of music so can blind people.every voice is different some have deep some have high pitch sound
Eukaryotes are the oldest known organisms on earth.
a. true
b. false
Answer:
false I think is prokaryotic
Tom walked into the anatomy lab for the first time and was overpowered by the odor of formaldehyde. By the end of the lab, he said there was only a slight smell. This can best be explained by?.
Tom walked into the anatomy lab for the first time and was overpowered by the odor of formaldehyde. By the end of the lab, he said there was only a slight smell. This can best be explained by sensory adaptation.
In the field of science, we can describe sensory adaptation as the reduction in sensitivity of the sensory organs towards a particular stimulus because of consistent or continuous exposure to it.
As a result of sensory adaptation, our brain tends to become adapted to a particular condition and helps us to show lower sensitivity to that condition.
When Tom walked into the lab, his sensory organ produced maximum sensitivity toward the odor of formaldehyde. By remaining in the lab, the exposure to the odor was consistent. As a result, Tom gained secondary adaptation to the odor and said that there was only a slight smell by the end of the day.
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Which kind of brain damage often causes people to lose their social inhibitions and to ignore the rules of polite conduct?
Damage to the prefrontal cortex often causes people to lose their social inhabitations.
prefrontal cortex responsible for formulating plans & techniques along with a person' personality. orchestration of thoughts and moves in accordance with internal dreams" prefrontal cortex characteristic is planning ahead - predict the destiny monitoring - comparing a situation sustained interest - retaining eyes on targetgoal direct behavior operating memory - quick term reminiscence & practice session problem fixing characteristic of the Orbital prefrontal cortex is secondary flavor cortex: reward cost of flavor is represented, number one chargeable for identity (now not reward) .Secondary Olfactory place: information approximately the identification, reward value of odors represented. conduct: produced with rewards & punishment, the more pleasure & ache there may be, the extra OFC activity happens.To know more about prefrontal cortex visit : https://brainly.com/question/9941447
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One of the general principles of psychoactive drugs is that every drug has _________blank.
1. effects on the heart
2. impurities
3. multiple effects
4. a key to some part of the mind
Option 3: One of the general principles of psychoactive drugs is that every drug has multiple effects.
Psychoactive drugs are chemical substances that affect an individual's mental state by altering the working of the central nervous system. Psychoactive drugs are classified into stimulants, depressants, narcotics or opioids, hallucinogens, and marijuana or cannabis. They have various principles that depend upon patient's history, has multiple effects, none of them are too good or too bad, and also their prescription size matters.
All of these drugs have various effects on a person's mental state. If they can drive an individual to euphoria, they can also bring the patient to relax and feel low. If taken in excess amounts, they can even cause coma or death. Therefore, they should not be taken without the prescription of a doctor.
Caffeine and alcohol are two psychoactive drugs that are often consumed by people without prescription. But their consumption should also be limited to avoid unfavorable conditions.
Any of the psychoactive drugs is not bound to produce only one effect. Instead, they can be administered for various conditions owing to their capability of producing multiple effects.
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Which activity has the greatest food safety risk when an employee uses bare hands?
Activity has the greatest food safety risk when an employee uses bare hands is ready-to-eat foods should not be prepared using bare hands or are at high risk.
When any employee uses bare hands there are increased chances of contamination in the case of ready-to-eat foods because ready-to-eat foods needed to be preserved for a longer duration than freshly prepared foods so there should be zero chances of contamination and while working with bare hands this risk is increased as there are many pathogens present in the hands like bacteria, fungus, and if they get optimum condition at any time they will grow profusely and will damage the food which will further damage the health of people eating it and the risk is even more whenever any employee changes his cooking from raw meat to ready to eat food and after the employee has discarded the spoiled food or garbage and doesn't wash hands and start working for ready to eat food and this can also lead t biological hazards and according to the FDA, bare hand contact can transfer dangerous pathogens from hands to food, spreading foodborne illness.
Also, an employee with nail polish is only allowed when wearing gloves and non-latex ones. In fact, bare-hand contact with ready-to-eat foods is responsible for 30% of restaurant foodborne illness outbreaks, and because of this, the Food Code prohibits bare-hand contact with ready-to-eat foods.
The FDA gives health departments the power to allow certain restaurants to practice bare-hand contact in carefully controlled situations.
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Explain why, in the early morning and in the evening, there is no overall movement of gases into or out of the leaf
Explanation:
As the rate of photosynthesis and the rate of respiration in plants is equal
Explanation:
As the rate of photosynthesis and the rate of restoration in plants is equal
A protein undergoes post-translational processing in the rough endoplasmic reticulum and the golgi complex. however, the protein is incorrectly folded and won't be functional. what will happen to it?
It will be eliminated in the cytoplasm, according to the supplied statement.
The correct option is C.
What exactly is the endoplasmic reticulum?The endoplasmic reticulum serves as the eukaryotic cell nucleus transportation system in addition to carrying out numerous other essential functions like protein folding.
What exactly is the Golgi complex?The Golgi apparatus is a component located in all eukaryotic cells. It is also known as the Golgi complex, Golgi body, or merely simply Golgi. It is a component of the cytoplasmic endomembrane system that bundles proteins onto membrane-bound vesicles before they are transported to their destination.
What is the purpose of the Golgi complex?The Golgi apparatus, also known as the Golgi complex, serves as a factory where proteins from the ER have been further processed and sorted before being transported to their final destinations: lysosomes, endothelial plasma membrane, or secretion.
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I understand that the question you are looking for is:
A protein undergoes post-translational processing in the rough endoplasmic reticulum and the Golgi complex. However, the protein is incorrectly folded and won't be functional. What will happen to it?
a. It will be returned to the ribosomes.
b. It will be carried to the plasma membrane for removal from the cell.
c. It will be destroyed in the cytoplasm.
d. It will travel through the nuclear pores to the nucleus.
e. It will be transported to the lysosomes in vesicles for destruction
3) How far did the ice sheets flow southward during the last
ice age?
15 points nd brainly
Chara zeylanica is a complex streptophyte alga. what traits would this species need to gain in order to be classified as a land plant? (check all that apply.)
Terrestrial plants (embryonic plants) are a small group of freshwater algae ranging from scaly unicellular flagellates (mesostigma) to complex filamentous thallus with branching, cellular differentiation, and apical growth (charales), streptococcal green algae.
Evolved from Streptococci and embryonic algae make up the Streptococcus division, while the rest of the green algae are classified as green algae. Charales (rockworms) are often considered sisters to terrestrial plants, suggesting a gradual evolution to cellular complexity within streptococcal green algae. Many cells (e.g. phragmoplasts, plasmodesmata, hexameric cellulose synthase, flagellar cell structures, oocyte reproduction with zygote retention) and physiological properties (e.g. photorespiratory mode, phytochrome system) are linked Derived from cocci algae. Phylogenetic studies show that as sisters to all other streptococci, including embryonic plants, Mesostigma (flagellates) and Chlorocybus (sartinoids) form the earliest divergence within streptococci . The question of whether Charales, Coleochaetales, or Zygnematoles are sisters to embryonic plants is still (or again) hotly debated. A project has been initiated to investigate genome evolution within streptococci, including protein families and polyadenylation signals. Consistent with morphological and physiological traits, many molecular traits thought to be specific to embryonic plants may have arose before the chlorophyte/streptococcal division or were derived from streptococcal algae. shown.
Molecular phylogeny and the fossil record allow for detailed reconstructions of the early evolutionary events that gave rise to true land plants and shaped the present-day diversity and ecology of the interlaced green algae and their progeny plants.
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You did a gram stain on an older culture of gram cells, what color would the dead and live cells from the culture appear in a gram stain?
After gram staining, the cell will appear pink or red. As peptidoglycan cell walls degrade in older cultures, gram-positive cells are more likely to become gram-negative or gram variable. Cell walls start to deteriorate, which makes the crystal violet leave the cell.
What is gram staining?A Gram stain test is done to check for microorganisms everywhere a disease might be present.The two main subtypes of bacteria are infections that are Gram-positive and Gram-negative. Based on their responses to the Gram stain, the various bacterial species are separated. A Gram stain has a purple color. The bacteria in a sample either stay purple or change to pink or red when the dye and bacteria interact. If the bacteria remain purple, they are supposed to be Gram-positive. Gram-negative bacteria are those that turn pink or red when exposed to light. Your doctor can determine the type of illness you have and the proper treatments to use to treat it by determining whether the bacteria are Gram-positive or Gram-negative.Learn more about the gram staining with the help of the given link:
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An organism is described as 2n = 26. how many chromosomes are in one meiotic cell during telophase 2?
According to the given statement 26 chromosomes are in one meiotic cell during telophase 2.
What exactly are chromosomes?The thread-like components known as chromosomes are found in the nucleus of both plant and animal cells. Proteins and a single unit of deoxyribonucleic acid make up each chromosome (DNA).The exact directions that give each type of living thing its uniqueness are encoded in DNA, which is handed down from parents to offspring.
What are chromosomes' primary purposes?The basic function of chromosomes is to transport DNA and transmit genetic material through one generations to the next. Cell division depends heavily on chromosomes. They protect the DNA against tangles and harm.
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Which of the following statements is correct regarding the process of science?
O The process of science involves testing hypotheses, but also collecting data.
O The process of science is all about developing new technologies.
O The process of science involves testing hypotheses, but also phases of exploration,
communication and societal outcomes.
O The process of science is all about testing hypotheses.
The correct statement regarding the process of science is that: (a) The process of science involves testing hypotheses, but also collecting data.
The process of science can be simply defined as the testing of facts and the observations. It is a 5 step process that includes: identifying any problem, making the related observations, forming a hypothesis based on the observations, performing experiments and producing the results or conclusion.
Hypotheses are the statements made based upon the observations. These statements do not have any proof or written theory for their validation. It is a simple reasoning assumed to the the truth.
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Parrotfish are herbivores that are found in coral reefs. To escape predation, a parrotfish will graze with a rabbitfish, which has venomous spines at the end of its pelvic fins. The rabbitfish does not benefit from this relationship. Which type of relationship do the parrotfish and the rabbitfish have in the coral-reef environment?.
the parrotfish and the rabbitfish have commensalism relationship in the
coral-reef environment.
On the coral-reef, carnivores have diversified into many species than herbivores.So the Competition among carnivores has produced a dangerous environment for prey, in which hungry jaws wait in hideouts around every corner, during all hours of the day.
So to escape predation, some relatively defenseless herbivores, such as parrotfish , have evolved to graze with schools of their better-protected rabbitfish .
Goldlined rabbitfish , also called spine-feet fish, are named so for their defensive venomous spines at the ends of each of their pelvic fins. But spines are last-ditch defense. Therefore to avoid being thrust into a risky spine-to-fang battle, rabbitfish employ their color- changing nature to avoid predator detection in the first place.
Schools of rabbitfish thus provide an excellent refuge for the poorly defended relatives, the parrotfish.
.
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A. What is the trend (pattern) with the amount of calories burned
over the 7 day period?
theres no queston or image to reference from
1. Explain what this graph is intended to show.
2. What type of graph is this?
3. What is the independent variable?
4. What is the dependent variable?
5. Describe this graph.
6. What if any is the relationship between the average minutes of sunlight and the average temperature?
7. Does this graph show a direct or inverse relationship?
8. Are there any data points that seem not to fit the pattern of the others? If so, can you think of any possible reasons for
these "outliers"?
9. What is the average temperature at 650°C?
.O. Predict what you think the average temperature might be at 700°C?
Answer:
1.the graph shows the relationship between sunlight exposure and temperature, and how temperature varies over time in sunlight.
3. sunlight is independent
4. temperature is dependent
5. the temperature increases as the minutes of sunlight also increase
6. as more minutes are spent in sunlight, the average temperature increases indicating they are somewhat directly proportional to eachother
7. direct relationship
8. yes, due to the possibility of external factors such as humidity and wind speed that can affect the data
9. at 650c the avg temp is 18c
10. in order to predict temperature at 700c, you must draw a best fit line through the points and extrapolate at 700c mark, estimation is somewhere between 36c-40c
Of the nine regions used by anatomists to divide the abdominopelvic cavity, this one is most superior and medial.
(3) epigastric is the most superior and medial Of the nine regions used by anatomists to divide the abdominopelvic cavity.
The epigastrium (epigastric region), together with the right and left hypochondria, right and left lateral regions (lumbar areas or flanks), right and left inguinal regions (or fossae), and the umbilical and pubic regions, is one of the nine regions of the abdomen. It is situated halfway between the subcostal plane and the costal margins.
The diaphragm flattens and contracts while breathing, shifting the viscera and causing the upper abdominal wall to migrate outward. The diaphragm and abdominal muscles converge here, causing the epigastrium to protrude when the diaphragm and abdominal muscles contract.
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Question correction:
Of the nine regions used by anatomists to divide the abdominopelvic cavity, this one is most superior and medial.
hypogastricumbilicalepigastriclumbarWhat effect does the salt concentation in soil have on plant growth?
Independent Variable:
Dependent Variable:
Hypothesis:
Because salinity interferes with nitrate uptake, stunts development, and prevents plant reproduction, it has an impact on the production of pastures, trees, and crops. Some ions, most notably chloride, are poisonous to plants, and when their concentration rises, the plant becomes poisoned and perishes.
The amount of sunlight that plants receive determines how much they will develop. What you alter is the independent variable, and what occurs as a result of the change is the dependent variable.
Salt is an independent variable.
Dependent variable is the plant's growth (height)
Group experiment: salt-treated plant
Salt-free plant in the control group.
Due to the high sensitivity of plants to sodium, introducing salt to the soil will cause plant death. Some use it as a weed killer, but the same salt that kills weeds will travel out through soil and destroy several other plants, making it a poor pesticide choice.
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Professor Jamal is studying the populations of two species of grasses, labeled A and B, that are native to a grasslands ecosystem. Based on data and observations, the professor predicts how the populations of the grasses will vary with average temperature during the month of March. Her predictions are shown in the graph.
In one ecosystem, the average March temperature is 16°C. Based on the professor’s graph, which statements describe the populations of the two grass species in this ecosystem?
I. The two populations are approximately equal in size.
II. The two species help the ecosystem tolerate increases or decreases in temperature. III. Over time, one grass species will replace the other in the ecosystem.
(A) III. only
(B) I and II only
(C) I and III only
(D) II and III only
(E) I, II, and III
The statements that describe the populations of the two grass species in this ecosystem are
The two populations are approximately equal Over time, one grass species will replace the other in the ecosystem.Option C I and III
This is further explained below.
What is an ecosystem?Generally, An ecosystem, also known as an ecological system, is made up of all the creatures and the physical setting in which they live.
The nutrition cycles and energy fluxes connect these biotic and abiotic elements.
In conclusion, The statements that describe the populations of the two grass species in this ecosystem are
The two populations are approximately equal Over time, one grass species will replace the other in the ecosystem.Option C I and III
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The tissue found covering body surfaces, lining body cavities, forming the internal and external linings of many organs, and constituting most gland tissue is tissue.
The tissue found covering body surfaces, lining body cavities, forming the internal and external linings of many organs, and constituting most gland tissue is epithelium tissue.
The epithelium is what?The epithelium is a type of body tissue that covers all of the internal and exterior body surfaces, lines hollow organs and body cavities, and makes up the majority of glandular tissue.What purposes does epithelial tissue serve?Surface epithelium, which forms sheets covering the internal and external body surfaces, as well as secreting organs (glandular epithelium). Secretion, defense, absorption, transportation, and particular sensory receptivity are all functions of epithelial tissue.What cells are in epithelial tissue?There are three epithelial cell shapes: cuboidal, columnar, and squamous. Cuboidal epithelial cells are shaped like a cube and have a spherical nucleus in the center. Columnar epithelial cells are tall, rectangular in shape, and have an oval-shaped nucleus in the basal region.To learn more about epithelial tissue visit:
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NEED HELP ASAP WITH THE FOLLOWING QUESTIONS PLSSSS
1.they are the most abundant organisms on earth due to their size and method of reproduction
2. They have cell walls made of chitin
3 examples of this organism is slime mold
4. They have cap, stalk, or circular shape
5. Some species causes amoebiasis
PLS ILL MARK BRAINLIEST
Answer:
1. Bacteria
2. Fungi
3. Slime mold, in fact, is a soil-dwelling amoeba, a brainless, single-celled organism, often containing multiple nuclei.
4. Mushrooms
5. Entamoeba.
I hope this helps!
What percentage of the cell cycle does the mitotic phase occupy? how was this supported when viewing the onion root tip slide?
The mitotic phase occupies about 5% of the duration of the cell cycle.
The cells of the human body divide once in 24 hours and this duration is divided into two phases:
InterphaseMitotic Phase or M-PhaseThe mitotic phase represents the phase when the actual cell division takes place.
In the case of humans, out of 24 hours of cell division, almost 23 hours i.e 95% of the cell cycle is occupied by the interphase.
The mitotic phase lasts for only about an hour or 5% of the cell cycle.
When an onion root tip is observed, it also shows the same time duration for the interphase and mitotic phase as seen in the case of humans.
Thus, the mitotic phase occupies about 5% of the duration of the cell cycle.
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Describe how the surface area of a cell can influence the maximum size a cell might attain.
Answer: describe how the surface area of a cell can influence the maximum size the cell might attain. nutrients come in and out through the cell membrane and as the cell grows, the volume expands faster than the surface area; at a certain size the cell will need more nutrients than can pass through the membrane.
Explanation:
