Answer:The evolutionary history of hominins has been characterized by significant dietary changes, which include the introduction of meat eating, cooking, and the changes associated with plant and animal domestication. Decades of anthropological research have been devoted to elucidating this dietary history, in part because these shifts were likely associated with major anatomical and cultural changes (e.g., the increase in relative brain size and the advent of modern civilization via agriculture). However, this reconstruction is also crucial for understanding the evolutionary context of our modern diets and the diseases often associated with them.
In parallel with the historical reconstruction of hominin diets, molecular evolutionary analyses have been used to interrogate the genome for signals of genetic adaptations to different dietary regimes. A major advantage of many evolutionary genetic approaches is that they do not necessarily require strong assumptions about the specific genes and alleles that were targets of diet-related selective pressures. For this reason, evolutionary genetic analyses have the potential not only to inform existing adaptive hypotheses of hominin dietary history, but also to help generate new ones.
Here, we bring together these two areas of inquiry, namely anthropology and evolutionary genetics, to highlight their recent findings related to human dietary history and to discuss the limitations of different approaches. We start by providing a brief overview of the major dietary shifts in hominin evolution and discussing the evolutionary genetics methods and approaches used to identify signals of natural selection. We then review the results of genetic studies aimed at detecting the loci that played a major role in dietary adaptations and conclude by outlining the potential of future studies in this area.
Explanation:
2. Explain the purpose of alternation of generations
Answer:
The alternation of generations allows for both the dynamic and volatile act of sexual reproduction and the steady and consistent act of asexual reproduction. When the sporophyte creates spores, the cells undergo meiosis, which allows the gametophyte generation to recombine the genetics present.
Explanation:
WHOEVER RESPONDS FIRST WILL GET MARKED BEST!
Which of the following is NOT an
advantage of selective breeding?
A maintains certain stable traits to pass
down to the offspring
B traits help the animal prosper in
confinement
C breedin for only one trait can cause
problems in other traits
D makes the species stronger
Tongue rolling is dominant. A father cannot roll his tongue but a mother can. Of their three children, one daughter and one son cannot roll her tongue. The other daughter can roll her tongues.
For the Tongue Rolling pedigree, what is the genotype of a tongue roller?
A.RR and rr
B.rr and Rr
C.Rr and RR
D.rr
Answer:
C. Rr and RR
Explanation:
I believe this is the answer because they said that it was a dominant geen.
Why do you think stop and start codon signals are necessary tom protein synthesis?
Answer:
I think that the stop and start codon signals are necessary for tom protein synthesis because without start and stop codon signals, we couldn't begin / end the translation.
Which best describes the result of Mendel’s work with pea plants
Answer:
He has found the basic ideas about genetics.
Explanation:
The second law of thermodynamics tells us that when energy changes forms, ___________.
A: It always moves to a lower and then a higher level
B: IT becomes more easily recycled
C: Some of it is lost, usually as heat
Answer:
C
Explanation:
Entropy occurs as heat is gradually lost in the second law of thermodynamics.
Which is a major component of the respiratory
system?
o pharnyx
O heart
Oaorta
Answer:
The pharynx is the major component of the respiratory system
What is vermicomposting?
Explanation:
1. It is a process in which earthworms are used to decompose and decay the green waste.
2. green waste are usually domestic waste, vegitable peels, paper, rubber anything which is easy to decompose.
3. In this process the green waste is been dump in the ground with addition to some earthworms.
4. As we know earthworms are farmers friends because they improve quality of the soil, moisture, water holding capacity, and more.
hope this helps you
have a good day
How are cells organized in complex organisms? List the levels of organization in animals
such as humans.
Answer:
Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.
Why is Claire (the dog) not gaining weight, even though she is eating?
Answer:
Claire is a healthy dog
Explanation:
she exercises enough to maintain a healthy and consistent weight.
Fermentation and aerobic respiration break down glucose to make
energy. Which statement correctly compares the two processes?
Fermentation uses more oxygen than aerobic respiration uses.
A.
B.
Aerobic respiration uses more glucose than fermentation uses.
C.
Aerobic respiration produces less energy than fermentation
produces
D.
Fermentation produces less energy than aerobic respiration
produces.
Answer: Fermentation produces less energy than aerobic respiration produces.
Explanation:
Just took the quiz
Fermentation has been the process that occurs in the bacteria and yeasts to break sugar in absence of oxygen. It produces less amount of energy than the process of aerobic respiration. Thus, option D is correct.
What are fermentation and aerobic respiration?Fermentation has been the process of producing energy by the chemical breakdown of the carbohydrates molecule by the enzymes in absence of oxygen molecules in yeasts, bacteria, etc. The end products also produced carbon dioxide gas as an effervescence.
On the other hand, aerobic respiration has been one of the processes of cellular respiration that uses oxygen to break the carbohydrate molecules into energy in the form of ATP. This type of respiration is the most common and occurs in the majority of organisms.
Both processes use carbohydrate molecules to produce energy, adenosine triphosphate (ATP) at the end of the reaction. Aerobic respiration is metabolic and fermentation has been the catabolic process. The amount of energy produced in fermentation is relatively less compared to aerobic due to incomplete oxidation of glucose.
Therefore, in option D. the amount of energy differs in both processes.
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How did the Great Flood of 1993 impact the socioeconomics of the Midwest.
Answer:
Millions of acres of farmland became unusable for years.
Explanation:
The Great flood of 1993 was the most devastating flood in the United States. More than 50,000 people became homeless and there was more than $20 of economic loss.
What was the Great Flood of 1993?North Dakota, South Dakota, Nebraska, Kansas, Minnesota, Iowa, Missouri, Wisconsin, and Illinois had significant and/or record floods from May through September 1993.
There were fifty flood fatalities, and the cost of repairs was close to $15 billion. Along the Missouri and Mississippi Rivers, hundreds of levees collapsed. So these flood-damaged houses and people lost their lives.
Therefore, the greatest flood to ever hit the United States was the Great Flood of 1993. More than 50,000 individuals lost their homes, and more than $20 in revenue was lost.
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Suppose a volcano sent large amounts of ash into the air that blocked the sunlight over a large area of ocean water for several months. Would this affect life in the ocean? Explain why or why not.
Answer:
Explanation:
Certain types of volcanic ash do not dissolve easily in water. Instead, they clump on the surface of the ocean in pumice rafts. These rafts can clog salt water intake strainers very quickly, which can result in overheating of shipboard machinery dependent on sea water service cooling.
What is most likely to occur if different plant species compete for the same
requirements in an ecosystem?
a. One species will be eliminated from the ecosystem
b. the species will develop different requirements
c. the species will atler the eviroment so that both survive
d. one species will adapt to a different environment
Proteins, starches, fats, and oils are made from _____.
glucose
auxin
cytokinin
phloem
Answer:
glucose
Explanation:
In onions (Allium), cells of the sporophyte have 16 chromosomes within each nucleus. How many chromosomes should be in an embryo nucleus after fertilization
If the Earth suddenly stopped having seasons, what could be the likely cause?
The Earth moved farther away from the Sun
The Earth is no longer tilted
The Moon disappeared
The Earth’s rotation has increased
Answer:
The Earth is no longer tilted.
Explanation:
From my understanding, the reason we have season's is because the Earths axis is tilted.
Can some body pls give me a description of genetically modified foods?
Answer:
Foods generated from genetically modified (GM) species have had their genetic material (DNA) altered in a way that does not occur naturally, for as by introducing a gene from another creature.
Explanation:
One's motivation can lead people to interpret the same situation differently.
Please select the best answer from the choices provided
T
F
Answer:
True
Explanation:
Motivation can influence one’s perception by influencing focus and expectations. Got it right on the quiz.
Answer:
true
Explanation:
Why it is important veterinary?
Answer:
The veterinary profession contributes to improvement of human and public health by improving agriculture and food systems, advancing biomedical and comparative medical research, preventing and addressing zoonotic diseases, enhancing environmental and ecosystem health, and helping manage 21st century public health
Explanation:
What is the term that refers to knowledge of where a person's body parts are located in space?
Answer: Proprioception
Explanation:
What role do the following codons (UGA, UAA, UAG) play in protein system
Answer:
Signal the end of protein-coding sequences
Explanation:
The codons UGA, UAA, and UAG are known as stop codons. When the RNA is being translated to protein, and the RNAm reads those codons, it knows it has to end the protein sequence
Which of the following does not occur during anaphase?
A. Centromeres divide
B. Chromosomes move toward opposite poles
C. Spindle fibers pull on the chromosomes
D. Nuclear envelope dissolves
Answer:
D. nuclear envelope dissolves
Explanation:
this happens in prophase
Anaphase is a part of meiosis. In anaphase, the nuclear envelope does not dissolve. In this phase, centromeres divide, spindle fibers pull on the chromosomes, and the chromosomes move toward opposite poles. Hence, opton D is true.
What is anaphase?
Anaphase is a part of both meiosis and mitosis in the cell division process. In mitosis, the anaphase separates the daughter chromatids of the homologous chromosome by pulling them via their centromeres to the opposite poles. In meiosis, there are two stages of anaphases, such as anaphase I and anaphase II, and in each stage there are different types of chromosome separation.
In meiosis I, in anaphase I, each chromosome of the homologous chromosome is attached with a spindle fiber, but this phase only separates the homologous chromosome. The further separation of sister chromatids takes place in meiosis II, with each cell getting a haploid set.
Hence, in anaphase, the nuclear envelope does not dissolve, as this takes place in prophase. The last option is true.
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Why is natural selection not considered a random event?
Answer:
Natural selection is not random because
Explanation:
Natural selection is not random because it is based on fitness in the context of environmental conditions. This, more often than not, implies logical choices based on given external parameters. For example, if the weather remained cold, selection would go to those who are fit in the cold not those who are fit in the hot weather.
When certain molecules are pumped across biological membranes against a concentration gradientvia active transport, ATP is used. In the cells of our bodies, for example, sugars are activelytransported and metabolized within the membrane-enclosed mitochondria. Prokaryotes, incontrast, lack mitochondria but are nonetheless able to metabolize the same sugars. Based on the details provided in this scenario, whiat would be expected to beTRUE?
Answer:
tyher are 12 cells
Explanation:
IK
There's a block of metal with the dimensions below that weighs 2500 grams. What is the density of
the metal?
The correct answer is 37.72 g/[tex]cm^{3}[/tex]
Explanation:
To find the density of this block the first step is to find the total volume or space occupied by the block. This is because the volume is one of the factors that determines density (Density = mass ÷ volume). Now, to find the volume multiply the three sides given or the length, width, and heigh:
6 cm × 3 cm × 4 cm = 72 [tex]cm^{3}[/tex]
Finally, calculate the density:
2500 grams ÷ 72 cubic centimeters = 37.72 g/[tex]cm^{3}[/tex]
If less dense crust collides with less dense
crust, then this must be an example of
A. continental crust to continental crust collision..
B. continental crust to oceanic crust collision.
C, oceanic crust to oceanic crust collision.
D, a subduction zone.
The subduction zone is the area where a less dense plate collides with a denser plate, causing the subduction of this last one. The correct option is D. a subduction zone
What is a subduction zone?
The term subduction refers to the sinking process of one plate under another plate after a collision event.
Subduction zones are the areas in which plates approximate, collide, and one of them must subduct under the other one.
The plate that subduces is always the denser and older one. The less-dense plate superpose over the denser one and push it down toward the mantle. At this point, rocky material from the subductive plate melt again.
The correct option is D. a subduction zone.
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Answer:
A. Continental crust to continental crust collision
Explanation:
Did the lesson and got it right
Plants provide___to breath?
Answer:
oxygen
Explanation:
Plants use our carbon dioxide to create oxygen.
Answer:
Oxygen
Photosynthesis and respiration are the two essential processes that allow life to sustain on earth. In a way, they are a cycle — plants help humans breathe by providing us with oxygen, and humans help plants "breathe" by providing them with carbon dioxide.
Who conquered England?
William of Normandy
Charlemagne
Pope Gregory VII
Henry IV
Answer:
William, duke of Normandy
Explanation:
Answer:
A ez pez edg 2021
Explanation:
When going down a slope on a roller coaster, does your stomach actually move up?
Yes
No
Answer:
Yes
Explanation: