Answer:
Both options are valid, since in the hypothesis of the savanna it was argued that humans acquired bipedalism to be able to self-supply their food more effectively, and to have less body surface area exposed to the sun.
Explanation:
The saban hypothesis is believed to have originated in the saban, with the Austrolopitecus africanus being forced to affect this domain, which is why it acquired this adaptation mechanism.
The savanna had high grasslands, which also led to collaboration in this regard since they could be better camouflaged.
In addition, the human began to defend with the limbs of the upper limb, triggering the canines to decrease in size since it is not used as a defense mechanism.
The canine is a tooth that helps to tear carnivorous food, that is why the human also begins to have a more varied diet of fruits and seeds and that it can reach and take the bones of the tree to increase its height due to bipedalism.
There are limitations to applying the Biological Species Concepts, based on its criteria, so in some cases it is actually better to use the Morphospecies Concept. Which of the following would require being defined using the Morphospecies Concept instead of the Biological Species Concept?
a. Birds
b. Dinosaurs
c. Insects
d. Mammals
e. Flowering plants
Plant growth is discovered by the color of light
Answer:
no
it wasn't like that buddy
Answer:
Yes, different kinds of light help different kinds of plants grow.
Explanation:
For example, Blue light helps veggies to grow. Hope this helped you in some way!
A chill is a sign that A) body temperature is falling. B) body temperature is rising. C) body temperature is not changing. D) the metabolic rate is decreasing. E) blood vessels are dilating.
According to healthline, a chill is a sign that the vessels in your skin constrict, chills can occur with a fever and cause shivering or shaking.
How did the distribution of phenotypes change over time in the two different environments?
Answer:
The phenotype may change constantly throughout the life of an individual because of environmental changes and the physiological and morphological changes associated with aging. Three types of natural selection, showing the effects of each on the distribution of phenotypes within a population.
The phenotype may change constantly throughout the life of an individual because of environmental changes and the physiological and morphological changes associated with aging.
What do you mean by phenotypes?The phenotype is the set of observable characteristics or traits of an organism. The term covers the organism's morphology or physical form and structure, its developmental processes.
Moreover, examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
Environmental factors such as diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all impact which of an animal's genes are expressed, which ultimately affects the animal's phenotype.
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The area of the cortex that is responsible for sensations of the full bladder and the feeling that your lungs will burst when you hold your breath too long is the ________. Group of answer choices olfactory cortex
Answer:
Insular cortex
Explanation:
The insular cortex is found in the visceral sensory area and receives sensory input from the thalamus to the CNS. They play a role in emotions including self awareness, motor control etc and they also play a part in the regulation of the body's homeostasis.
A is a chemical substance that organisms require to live.
Answer:
Nutrient
Explanation:
A nutrient is a chemical substance that all types of organisms require to live.
What are the technological building blocks required to fulfill the future plans of the industrial biotechnology? Also state the number of key horizontal issues that need to be addressed when these future plans are implemented?
Answer:
The components are:
Maximizing investments in research and development, preservation of natural resources that are essential in research, skilled labor.
The horizontal issues that need to be addressed are: Constant climate change, demand for food and population growth.
Explanation:
Industrial biotechnology is responsible for the use of microorganisms and biological structures that enable the creation of bio-based products capable of meeting numerous human needs. Currently, the biggest challenges for industrial biotechnology is to position itself in a future where climate changes are increasingly intense, which causes an environmental imbalance that reduces the resources needed for human well-being. In addition, unrestrained population growth and the growing demand for food are also proving to be a major challenge.
To overcome these challenges, technological components capable of making biotechnological products solve these problems are necessary. These components can be found from investments in research, labor capacity and optimization of the natural resources we have.
an example of a teacher teaching philosophy
Answer:
I will assist my students to express themselves and accept themselves for who they are, as well embrace the differences of others. "Every classroom has its own unique community; my role as the teacher will be to assist each child in developing their own potential and learning styles.
POTATO PLANT GERMINATION AIM and PROCEDURE and CONCLUSION
Answer:
In summary, seed germination is the process of a fertilized plant ovary, or seed, developing into a mature plant. Seed germination starts with imbibition, when the seed takes in water from the soil. This triggers root growth to allow the seed to get more water.
How do most animals produce carbon dioxide?
O A. By buming fossil fuels
O B. By photosynthesis
O C. By cellular respiration
O D. By eating plants
Answer:
cellular respiration
Explanation:
animals have to breathe to survive similar to humans
Answer:
Cellular Respiration
Explanation:
APEX
Although all genetic diversity originates as a mutation there are two mechanisms that occur during meiosis that can recombine existing genetic diversity into many trillion of new combinations what are these two mechanisms a. organization of DNA around histone molecules b. variability in the arrangement of Acton and meiosis molecules in the meiotic spindle c. Random assortment of alleles during metaphase one of meiosis d. telomeric shortening after successive rounds of cellular division e. Crossing over between homologous sister chromatids
Answer:
option E is the correct crossing over between sister chromatids crossing over is important because it is a source of genetic variation and leads to different mutations (changes) in the body of zygote
Explanation:
i hope this will help you :)
The mechanism above described that can recombine existing genetic diversity during meiosis is the 'random assortment of alleles during metaphase I of meiosis' (Option c).
During the metaphase of meiosis I, the homologous pairs of chromosomes line up at the equator of the cell.
During anaphase I, these chromosomes are pulled toward opposite poles of the cell in order to form haploid cells, thereby the separation (i.e., assortment) of homologous chromosomes is random.
This process (i.e., independent assortment) results in a huge variety of possible genetic arrangements.
The crossing over between homologous non-sister chromatids represents another mechanism that can recombine existing genetic diversity during meiosis, but this option does not appear above.
Crossing over refers to the exchange of genetic material between non-sister chromatids during meiosis I (prophase I).
In conclusion, the mechanism that can recombine existing genetic diversity during meiosis is the 'random assortment of alleles during metaphase I of meiosis' (Option c).
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You may see a lot of brain imaging studies in the news or on the Internet. Thinking back to the research methods discussed in Chapter One (Learning Objectives 1.6 through 1.11), what kinds of questions should you ask about these studies before accepting the findings as valid?
Answer:
Before accepting brain imaging studies, the inquiries that I would pose before believing these discoveries to be legitimate are:
Did the investigation show up in a peer-reviewed journal?
peer-reviewed implies presenting the exploration papers to different specialists for an alternate and free audit before accepting it. It is perhaps the most ideal way of finding out the reality of the study and how right the outcomes are. It is in every case great to go for the subsequent feeling.
How large was the sample?
Clearly more the members in an examination, progressively substantial are its outcomes. This is to learn that there were a serious measure of individuals whose brain were examined.
Did the scientists control for key contrasts?
Assorted variety or sex parity ought to be there while contemplating the examples. One shows signs of improvement result when the investigation of populace is as homogenous as conceivable in light of the fact that it permits the specialists to reduce or diminish the quantity of contrasts that may influence the examination or result.
Look at the pedigree shown here. Could this pedigree show the inheritance of:
1. an autosomal dominant trait? Why or why not?
2. an autosomal recessive trait? Why or why not?
I
2
II
IN
3
4
III
1
2
3
4
This pedigree doesn't show an autosomal dominant trait because 3,4 are carriers, passing the gene to their offsprings but don't manifest the phenotype. This pedigree can represent an autosomal recessive gene based on what I just mentioned. We know that this is an autosomal trait because it seems to affect both genders equally.
Which infection is caused by this organism?
Malaria
O African sleeping sickness
O Girardiasis
O Amoebiasis
Answer:
Malaria by plasmodium
African sleeping sickness is cuased by tripanosoma
Girardiasis by girardia
Amoebiasis by amoeba
Explanation:
Hemophilia is a disease of blood clotting that is inherited as an X-linked recessive trait. An apparently normal woman, whose own father is a hemophiliac, marries an unaffected man. Use XH to represent the normal allele and Xh for the hemophilia allele. (Key: Determine the genotypes of the mother based on that of the grandfather, the genotype of the father. Use the Punnett square to determine the rest!)The chance that any of her future sons would be hemophiliac is: Group of answer choices
Answer:
50% or 1/2.
Explanation:
So first off to answer this question, we have to determine the genotypes of the parents first. The key is in the first sentence: Hemophilia is X-linked & recessive. That means two recessive alleles of the trait are needed in order for a person to express its effects and that the trait is specifically found on the X chromosome.
Let's start with the mother. The question states that her father is a hemophiliac. She has to have at least 1 recessive allele for hemophilia then because during sexual intercourse, each parent contributes 1 sex chromosome, and in the case of a daughter, the father must donate an X chromosome. However, the question also states that she is "apparently normal," meaning that the second allele that she has for the disease is not recessive but dominant. Thus we can represent her genotype with "XH Xh."
Let's go onto the father. The father is unaffected, meaning he is neither a hemophiliac nor a carrier. His genotype must be "XH Y". Remember, to be a carrier, he must have 1 recessive allele for the disease, and the Y chromosome cannot carry the allele.
The question asks for "the chance that any of her future sons would be [a] hemophiliac." By now, you should have realized that this would mean the son would have the genotype of "hh." Couple things to note here: 1, the son must get a Y chromosome from his dad and an X from his mom, and 2, we need to use a Punnett square. Let's do the cross.
We get the following: XH XH, XH Xh, XH Y, and Xh Y. However, we need to focus on the sons here, who are represented by XH Y and Xh Y. As you can see, half of them have/express the disease, Xh Y. Thus, the chance that any of her future sons would be hemophiliac is 50%, or 1/2.
Cheers. =-)
If an animal is specific to an area what does that mean?
Answer:
It means something is keeping that animal in that area whether its food shelter water or a breeding ground
Explanation:
Myocardial cells have long refractory periods in order to ensure each contraction is____. This is
due to the presence of_______
channels in these cells that allow the_____of_____ ions right after
ions have entered.
Answer:These contractile elements are virtually identical to skeletal muscle. ... (a) Cardiac muscle cells have myofibrils composed of myofilaments arranged in sarcomeres, ... The refractory period is very long to prevent the possibility of tetany, a ... At this point, the calcium ion channels close and K+ channels open, allowing outflux ..
Explanation:
If after several rounds of artificial selection all alleles affecting the trait are fixed or lost, the narrow-sense heritability (h^{2}) of a trait is
Answer:
h^2 = 0
Explanation:
When trait variance is a result of additive genetic factors, it is referred to as 'narrow sense heritability' or h^2. This estimate falls within a range of 0 to 1. h^2 is significant in indicating the evolutionary potential of a certain trait under study. Heritability value close to zero means that the variation in that trait is predominantly a result of environmental factors.
if a person vomit predict which part of his digestive system was unable to deliver the food to the next organ
Answer:
Stomach
Explanation:
The stomach was unable to deliver the food the proximal small intestine and thus the person vomits. Vomiting is reverse peristalsis.
Cells are able to remove large amounts of material using what cell process?
Answer:
Exocytosis
Explanation:
Exocytosis is the process that allows cells to be able to remove large amounts of material in and out of themselves.
Hope this helps!!! PLZ MARK BRAINLIEST!!!
Why can some medicines be absorbed through the skin?
Answer:
Explanation:
Some medication can be absorbed through the skin as the skin or mucous membranes allow it to enter through the body. Most drug absorbtion occurs between cells by passing through sweat pores and hair follicles, making it transcellular. Thus, topical medication is able to be absorbed through the skin due to pores and hair follicles.
Assuming the population begins in H−W equilibrium, what is C1 allele frequency after one generation of natural selection? Express your answer using three decimal places.
Complete question:
In a population of flowers growing in a meadow, C1 and C2 are autosomal codominant alleles that control flower color. The alleles are polymorphic in the population, with f (C1) = 0.7 and f (C2) = 0.3. Flowers that are C1C1 are yellow, orange flowers are C1C2, and C2C2 flowers are red. A storm blows a new species of hungry insects into the meadow, and they begin to eat yellow and orange flowers but not red flowers. The predation exerts strong natural selection on the flower population, resulting in relative fitness values of C1C1 = 0.30, C1C2 = 0.60, and C2C2 = 1.0. Assuming the population begins in H−W equilibrium, what is C1 allele frequency after one generation of natural selection? Express your answer using three decimal places.
Answer:
The C1 allele frequency after one generation of natural selection equals 0.559
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached file.
difference betewwn pro end eucariotes
Answer:
hey!
your answer is
Prokaryotes are organisms made up of cells that lack a cell nucleus or any membrane-encased organelles. Eukaryotes are organisms made up of cells that possess a membrane-bound nucleus that holds genetic material as well as membrane-bound organelles.
Explanation:
I hope this helps
Foodborne illnesses can last:
Up to 1-2 hours
Up to 24-48 hours
Up to 3-4 months
A lifetime
Answer:
Up to 24-48 hours
Explanation: according to the FDA
Foodborne illnesses can last Up to 24-48 hours ( option 2 )
Foodborne illnesses are diseases/illnesses caused by consuming unhygienic solid or liquid food substances. It can also be as a result of food poisonings or eating an inappropriate amount/quantity of food at any given time.
Some of the foodborne illnesses are :
NorovirusSalmonella Campylobacter.diarrheaFoodborne illnesses on an average can last between 24 to 48 hours but it could exceed this time range in very severe cases like diarrhea. but they cannot last a lifetime neither can they last for 3 - 4 months as well.
Therefore the correct time range for foodborne illnesses is up to 24-48 hours
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What role do white blood cells perform in a human body? clotting blood conducting electrical impulses secreting enzymes carrying oxygen
Answer:
Clotting Blood
Explanation:
I got it right on Edgenuity.
The role that white blood cells perform in a human body is secreting enzymes. Therefore, the correct option is C.
What are White blood cells?White blood cells, also known as leukocytes, play a crucial role in the human body's immune system. The correct role of white blood cells is to defend the body against foreign invaders such as bacteria, viruses, and other pathogens.
Specifically, white blood cells help to identify and eliminate harmful substances and pathogens, and play an important role in the body's response to infection and injury.
There are certain enzymes that are produced by the WBCs, which are responsible for maintaining and controlling the immune response of the body. These are:Myelo-peroxidase (MPO) is a leukocyte enzyme, MMP12 and many more. Therefore, the correct option is C.
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Which sentence relies on the connotation of the boldfaced word to convey
meaning?
A. Though it was hot outside, the air-conditioning made the room
cold.
B. When I told Dad that I had lost his keys, he went totally bananas.
C. Mom asked me to pick up some peaches from the market.
D. Kris pulled up the anchor, and we set sail for the enchanted island,
Answer:
B. When I told Dad that I had lost his keys, he went totally bananas.
Explanation:
The expression "he totally went bananas" needs to be bolded to convey meaning.
Hope it helps.
Based on this diagram, in this ecosystem fungi and bacteria are the:
primary consumers.
primary producers.
tertiary consumers.
decomposers.
Answer:
Decomposers
Explanation:
The Fungi and bacteria are found at the very end of the diagram, this means they are decomposers.
The triplet base sequence in DNA that is translated into a stop codon, whose corresponding tRNA anticodon, is AUU is given by :
Answer:
TAA
Explanation:
The triplet base sequence in DNA that is translated into a stop codon, whose corresponding tRNA anticodon, is AUU is given by TAA.
There are three stop codons in nature and these include UAG, UGA, and UAA. Out of all these codons, the one whose corresponding tRNA codon is AUU would be UAA stop codon.
However, as a rule of thumb, only RNA contains uracil base instead of thymine in DNA. Hence the 'U' in UAA mRNA stop codon which refers to uracil is replaced by 'T' (thymine) in DNA.
Therefore, UAA becomes TAA.
Air pollution is effecting national Park in which way
Air pollution is one of the most serious threats facing national parks, harming visitors’ health, clouding scenic views and altering our climate. The air pollution affecting national parks — and the rest of the country — results from the burning of fossil fuels by power plants, oil and gas development, vehicles, agriculture, industrial emissions, and other sources. NPCA works to make sure our nation’s air laws are strong, to hold polluters and government accountable to those laws, and ultimately, to reduce the air pollution that harms our parks, climate and communities.
Defending Federal Laws and Regulations
The Clean Air Act – which has helped improve air quality throughout the nation and the National Park System – is now under consistent threat as the Environmental Protection Agency works to roll back regulations, attack the use of science and offer polluters loopholes. NPCA advocates to defend and strengthen the clean air laws that protect park skies. We speak out for science and guard against policies driven only by politics and private industry.
Holding Polluters and Governments Accountable
Picture park skies free of pollution. While this sadly isn’t the case today, NPCA strives to make sure that parks are on the right track and that air pollution harming parks is reduced. We do this by helping to secure strong state plans to limit haze-causing and climate-altering pollution, and by defending existing plans – in court, if necessary.
Advocating for Pollution ReductionClean air laws are meaningless if polluters and the government don’t follow them. NPCA vigilantly monitors for sources that violate their permits or when officials aren’t following through on the safeguards in place to protect parks. We also look for opportunities to collaborate and work in state, local or regional processes to prevent threats of new pollution and help reduce harmful emissions. Learn about our work in California and Utah.
What do you think the algae offer that the fungi can’t do
Answer:
algae are autotrophic
Explanation:
the cell wall is made up of cellulose