There is a tonne of evidence that points to a common ancestor for all living things on Earth. Numerous sources, including as genetic, morphological, and fossil data, contribute to this proof. First, the genomic data points to a common ancestor for all living things on Earth.
What is the depiction regarding the DNA ?DNA is a component of all living things, and all living things' DNA is made up of the same four nucleotide bases: adenine, guanine, cytosine, and thymine.
The same genetic code, which is a collection of instructions that governs how the data in DNA is utilised to make proteins, is also used by all living things. This shows that all living things had a common ancestor who had the same four nucleotide bases and genetic code.
Second, the data from morphology implies believe there is a single ancestor for all living things on Earth. There are some traits that all species have, such a cell membrane and a nucleus.
Additionally, the same fundamental building ingredients found in proteins, carbohydrates, and lipids make up every single life. This argues that all living things descended from an ancestor who had the same fundamental traits and building components.
Last but not least, fossil evidence points to a common progenitor for all living things on Earth. Direct proof of an organism's evolutionary history can be found in fossils. Scientists have been able to track the evolutionary history of creatures by analysing the fossil record, and they have found that all organisms have developed from a common ancestor. Consequently, there is a lot of data that supports the evidences.
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A 19-year-old male was stung multiple times by fire ants. He is experiencing obvious signs and symptoms of anaphylactic shock. You administer high-flow oxygen and give him epinephrine via intramuscular injection. Upon reassessment, you determine that his condition has not improved. You should
3. Calculate: You can use your data to estimate the duration of each phase of the cell cycle. For example, if 8% of the cells were in prophase and the cell cycle was 10 hours long, then prophase would last 8% of 10 hours, or 0.8 hours (48 minutes). Use percentages to estimate the duration of each phase of the cell cycle. Show your work.
Answer:
Cell has two main phases; i) inter-phase and mitotic phase, which are further divided into sub types.
Explanation:
As given
For example, if 8% of the total cells were in prophase of cell cycle.
Length of cell cycle= 10 hours long, and prophase= 8% of 10 hours, or as , 0.8 hours (48 minutes).
Using % to estimate the duration of each phase of the cell cycle, the duration would be;
Interphase: 0.845×10=8.45 8hr27min
Prophase: 0.077×10=0.77 46.2min
Metaphase: 0.01×10= 0.1 6min
Anaphase: 0.025×10=0.25 15min
Units of dna that encode for specific characteristics is called
The blind mole rat is a close relative of other rats. However, mole rats live underground for their entire lives. As a result, their eyes have evolved into useless structures. Presumably, mole rats will not have eyes at all in the distant future. What type of structures are the mole rat's eyes?
Answer:
rudimentary eyes
Explanation:
Rudimentary eyes are eyes covered by skin that do not respond to visual stimulation.
The eyes of a blind mole rat represent vestigial structures. These are body parts that lose their original function through evolution. The mole rat's eye evolution hints at ancestral adaptations where eyesight was beneficial.
Explanation:The eyes of the blind mole rat are considered vestigial structures. These are body parts that have lost their original function through evolution. In the case of the blind mole rat, living in darkness underground, there is no need for vision. Thus, their eyes have evolved into structures that do not serve to perceive visual input.
Studying such structures provides valuable insight into an organism's evolutionary history. For example, we can surmise that the blind mole rat's ancestors had functioning eyes, implying they lived under conditions where eyesight was beneficial.
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What does earths rotation on it’s axis cause
Final answer:
Earth's rotation on its axis causes day and night cycles, affects weather through the Coriolis effect, and leads to seasonal changes due to Earth's axial tilt. The rotation also contributes to the precession of Earth's axis over a period of about 26,000 years.
Explanation:
The Earth's rotation on its axis causes several significant phenomena. One key aspect is the alternation between day and night. As the Earth spins, different parts of its surface move into and out of the Sun's light, resulting in the cycle of day and night. Additionally, the Earth's rotation on its axis is responsible for the Coriolis effect, which affects weather patterns and ocean currents.
Seasonal changes are another major effect of Earth's axial rotation, further influenced by its axial tilt of approximately 23.5°. This tilt causes different parts of Earth to receive varying amounts of sunlight through the year as it orbits around the Sun, leading to the seasons. For instance, when the Northern Hemisphere is tilted towards the Sun, it experiences summer, while the Southern Hemisphere, tilted away, experiences winter, and vice versa.
The rotational motion also contributes to precession, a slow gyroscope-like turn of the entire Earth over a cycle of about 26,000 years, mainly due to the gravitational pull exerted by the Sun and Moon on the Earth's equatorial bulge.
A plant has two alleles for color the red allele is recessive and is represented by q the purple allele is dominant and is represented by p if 76 of 100 organisms are red what is q
Answer:
0.87Explanation:
As given
q=red (recessive)
p=purple (dominant);
According to Hardy-Weinberg law;
(p+q)= 1 = p²+ 2pq+ q²
As the information provided, the red allele is recessive and it is represented by q
so q²= 76/100 = 0.76
Now we can find the recessive allele frequency using it as q is the frequency of recessive allele.
Thus, q= √0.76
q= 0.8717797887
Thus, the value of q is 0.871
Answer:
The answer is 0.87
Explanation:
:D
in plants that undergo double fertilization ,the structure that forms to nourish the seed is called
Answer:
A. endosperm.
Explanation:
The Life Cycles of Plants quiz on edge.
Which best describes how parents affect the genotype of a child?
A.
The parents choose whether to educate their child.
B.
The parents decide what to feed their child.
C.
The parents pass along genes to the child.
D.
The parents allow their child to stay up late.
Answer:
C.
Explanation:
The others aren't factors in what genes the child gets from the parents.
Answer:
Which best describes how parents affect the genotype of a child?
The parents pass along genes to the child.
Explanation:
Genes are being passed from parents to their offspring
If the wild-type codon is ggu, how many single-base substitutions will result in an amino acid substitution? include any changes from an amino acid codon to a different amino acid codon and any changes from an amino acid codon to a stop codon)
Answer:
Approximately six
Explanation:
The codon GGU
Single base substitution that will change this codon that codes for glycine to another amino acid includes: a single base substitution in the GGU codon such as GGU- AGU can occur. thus, approximately six single base substitution can take place to change this codon to code for another amino acid. A single base substitution cannot change the codon to a stop codon unless it happens twice or there is more than a single base substitution.
a environment in which an organism's needs are met.
niche
community
habitat
population
Answer:habitat
Explanation:
4. Myth: An organism's kingdom only describes physical characteristics.
o Fact:
o Evidence:
5. Myth: Mammals and plants don't belong in the same domain.
o Fact:
o Evidence:
An organism's kingdom describes more than just physical characteristics. Mammals and plants belong to different domains.
Explanation:Myth: An organism's kingdom only describes physical characteristics.
Fact: An organism's kingdom not only describes physical characteristics but also includes other factors such as reproductive methods, cell type, and nutritional requirements.
Evidence: For example, the kingdom Animalia includes organisms that are multicellular, have eukaryotic cells, reproduce sexually, and require organic compounds for energy.
Myth: Mammals and plants don't belong in the same domain.
Fact: Mammals and plants do not belong in the same domain. Mammals are classified under the domain Eukarya, while plants are classified under the domain Archaea or Bacteria.
Evidence: The domain classification is based on differences in cell structure, presence of a nucleus, and genetic makeup. Mammals have eukaryotic cells with a true nucleus, while plants have prokaryotic cells without a true nucleus.
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As a young biologist, Charles Darwin had expected the living plants of temperate South America would resemble those of temperate Europe, but he was surprised to find that they more closely resembled the plants of tropical South America. The biological explanation for this observation is most properly associated with the field of ___________.
A. EmbryologyB. Vertebrate anatomyC. Bioengineeringanatomy bioengineeringD. Biogeography
Answer:
Biogeography
Explanation:
Biogeography deals with the study of past and present distribution of animal and plant species.
It is related to physical geography as it often relates to the examination of the physical environment and how the affected species and shaped their distribution.
Examples of biogeography are: Changes in the lifestyle of humans and how it affects the environment, fossil records etc.
Answer:
D. Biogeography
Explanation:
Biogeography can be defined as the study of the distribution of species of living organisms geographical in the various biomes or ecosystems present on earth.
We have 3 major branches of biogeography.
a. Conservational biogeography: This has to do with the preservation of the biodiversity of living organisms in order to preserve their distribution on the earth.
b. Historical biogeography: This has to do with the evolutions of living organisms and the way it affects their distribution on earth.
c. Ecological biogeography: This has to do with the way climate changes, presence of or lack of habitat influences the distribution of living organisms in their various ecosystems.
Which of the following is a condition caused by an infestation of head lice?
A. Hepatitis
B. Scabies
C. Pediculosis capitis
D. Tinea pedis
Answer:
b. scabies
Explanation:
scabies is caused by an infection from Mites and Mites and Lice are the same thing
Answer: C. Pediculosis capitis
Explanation:
Head lice is caused by pediculosis capitis. It is very infection and common among children. The female head lice called louse lays and attach its egg on the scalp which hatch after 7-10days leading to a heavy breakout of lice in the hair. Lice are able to attach themselves to smooth hair, It is characterize by scratching heavily.
Sharing of combs should be avoided to prevent lice and it can be cured by the use of antibiotics.
In animal confinement facilities, antibiotics are administered to dense animal populations to reduce the likelihood of disease outbreaks. Subsequently, animals or humans infected by resistant strains do not respond to antibiotic treatment. Which social trap(s) is/are in effect in the scenario described above?
Answer: There is the danger of disease outbreak which may spread to other animals.
Explanation:
Female peacocks mate with male peacocks that have bright and attractive tail feathers. Why is it an advantage for male peacocks to have the brightest tail feathers?
A) They have a better chance of keeping other males away.
B) They can use their tail feathers to scare off predators.
C) They have a better chance of getting the females’ attention.
D) They can use their tail feathers to protect their offspring.
Answer:
C to get a better chance of getting the females attention
Explanation:
A parent that is heterozygous for a trait is crossed with a parent that is homozygous recessive for the same trait, as shown in the Punnett square. What is the probability that the offspring will be homozygous dominant for this trait?
The probability that the offspring will be homozygous dominant for this trait is 50%
The correct option is (c).
- In a Punnett square, the possible genotypes of offspring are determined by combining the alleles from the parent organisms.
- When a heterozygous parent (Aa) is crossed with a homozygous recessive parent (aa), the possible genotypes of the offspring are Aa and aa.
- The genotype "Aa" represents the heterozygous condition, while "aa" represents the homozygous recessive condition.
- The genotype "AA" represents the homozygous dominant condition.
- Since there is only one genotype out of the two possible genotypes that is homozygous dominant (AA), the probability of offspring being homozygous dominant is 50%.
complete question given below:
A parent that is heterozygous for a trait is crossed with a parent that is homozygous recessive for the same trait, as shown in the Punnett square. What is the probability that the offspring will be homozygous dominant for this trait?
a. 0%
b.25%
c.50%
d.75%
19. Which of the following structures is NOT found in the abdominal cavity of a pig?
A. Colon
B. Gallbladder
C. Pancreas
D. Thymus
The thymus is the structure among the given options that is not found in the abdominal cavity of a pig. It is typically located in the chest, just above the heart. Option d.
Explanation:The structure that is NOT found in the abdominal cavity of a pig is D. Thymus. The thymus is an organ of the immune system that is typically located in the chest, just above the heart in most mammals, including pigs. Conversely, the colon, gallbladder, and pancreas are all located within the abdominal cavity.
The correct answer is D. Thymus. The thymus is a lymphatic organ located in the thoracic cavity, not the abdominal cavity, of a pig. It is responsible for the production and maturation of T-cells, a type of white blood cell involved in the immune response.
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Describe the temperature for successful sperm production?
Answer:
The correct answer is - slightly lower than the body.
Explanation:
I really hope this helps
How is a single cell similar to an elephant
A single cell and an elephant are similar in that they both contain DNA, use cellular respiration to convert nutrients into energy, and eliminate waste through excretion.
Explanation:The single cell and the elephant, despite their size difference, are similar in many ways due to the nature of life processes. They both contain DNA, which carries their genetic information, and use it to guide their growth, development and reproduction. This DNA is found within a specific organelle called the nucleus.
Another similarity is cellular respiration. This is a process in which both the single cell and the cells within the elephant convert nutrients into energy in the form of ATP to sustain life functions.
Finally, they also both have a way of dealing with waste products aside via a process called excretion. Cells directly expel waste from cellular processes while an elephant eliminates waste through systems composed of many different specialized cells.
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A coyote can alter its diet to match seasonal abundance of plants, fruits, or small animals, and would therefore be considered ________. A coyote can alter its diet to match seasonal abundance of plants, fruits, or small animals, and would therefore be considered ________. density independent and resource-neutral a generalist a specialist, able to specialize on whatever is available at the time an endemic an organism with a type II survivorship curve
Answer:
a generalist sorry I don't know the other one
Explanation:
A coyote is a generalist species because it can adapt its diet to match whatever food source is readily available in different seasons.
Explanation:A coyote, due to its ability to alter its diet contingent on the availability of plants, fruits, or small animals, would be considered a generalist. Generalist species are those that can adapt to a variety of food sources and environments, as opposed to specialist species, which have a narrow focus on specific food sources or environmental conditions. The coyote does not adhere strictly to a single food source but adjusts according to what is available, which showcases their adaptability to different environmental conditions and seasons, and classifies them as a generalist species.
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The Earth’s movement through ________________ affects life on Earth.
this is fill in the blank
Answer:
The Earth's movement through space affects life on Earth
Explanation:
Hope this helps: )
Which part of the electromagnetic spectrum causes sunburn in humans?
Answer:
Ultraviolet light
Explanation:
Exposure to UV radiation from sunlight can cause sunburn.
Answer:
Ultraviolet light
Explanation:
:)
What three things do most viruses have in common
Answer:
All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion.
Explanation:
i looked it up:)
The three things most viruses have in common are:
They are made up of genetic material and a protein coat. They are obligate intracellular parasites. They are very small.The three things most viruses have in common are:
They are made up of genetic material and a protein coat. Viruses can contain either DNA or RNA as their genetic material. The protein coat protects the genetic material and helps the virus to attach to and infect cells.
They are obligate intracellular parasites. This means that viruses can only reproduce inside of living cells. They use the cell's machinery to make copies of themselves.
They are very small. Viruses are the smallest known infectious agents. They are so small that they can only be seen under a microscope.
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1 2 3 4 5 6 7 8 9 10 Time Remaining 57:21 What was Rudolf Virchow's contribution to the cell theory? He concluded that all cells come from preexisting cells. He concluded that cells are the basic units of structure and function of all living things. He concluded that all organisms are composed of cells. He concluded that all cells are similar in composition and metabolic activities. Mark this and return Save and Exit Next Submit
Answer:
He concluded that all cells come from preexisting cells.
Explanation:
Rudolf Virchow while building on the work of Theodore Schwann formulated a part of the cell theory which opined that cells arose from pre-exsiting cells which disproved the theory of spontaneous generation
Although this assertion has earlier been made by another scientist, Robert Remak in 1852, Schwann did not accept until later until after series of investigations. Schwann was later accused of publishing the work of Robert Remak as his in 1855.
The other parts of the cell theory include:
All living organisms are made up of cells which could be prokaryotic or eukaryoticCells are the basic unit of life.Answer: Rudolf Virchow's concluded that all cells come from preexisting cells.
Explanation: Rudolph Virchow state that 'Omnis cellula e cellula' which means that every cells arise from preexisting cells. Until Virchow came out with this theory, it was believed that new cells were created from a fluid called blastema ( it was believed that the imbalance caused disease).
Rudolf Virchow's lay the ground work on cellular pathology ( that is the study of disease at the cellular level). His work made it more clear that diseases occur at the cellular level and not blastema as believed. Diseases were diagnosed more accurately by scientist due to Rudolf Virchow's work.
Which structure of a sponge filters and digests food? pores spicules stinging cells collar cells
According to Chargaff's Rule, the complementary DNA sequence for C G T T A C C G is ___________.
Answer: G C A A T G G C
Explanation: adenine (A), thymine (T), cytosine (C) and guanine (G). Each base can only bond with one other, A with T and C with G.
Use the illustration and reading to define the process of transcription below.
Answer:What transpired it’s not showing the answer is a that would equal 10
Explanation:the hot girl said it
Maintaining a rich variety of genetic material that may lead to discoveries
useful to humans can be ensured by:
Answer:
Maintaining a rich variety of genetic material that can lead to discoveries useful for humans can be ensured by preserving biodiversity.
Explanation:
Options for this question are:
Preserving biodiversity .Increasing cloning .Asexual reproduction .Selective breeding.Biodiversity refers to the number of different living organisms that exist, and which are the product of evolution, those that have multiple ways of interacting, shaping life on the planet.
The human being is part of biodiversity, considered a natural heritage of the world and an element that provides balance to the biosphere.
An important characteristic of biodiversity is that it contains the different genetic information of each living being, each one of which is a functional element on which the maintenance of life on the planet depends, as well as the reservoir of the world's genetic potential, so it is necessary to guarantee its preservation.
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Maintaining a rich variety of genetic material that may lead to discoveries useful to humans can be ensured by preserving biodiversity.
What is biodiversity?Biodiversity refers to the variation (both genetic and phenotypic variation) in the forms of life present in nature.
Biodiversity is a fundamental source of genetic variation, which can be used to develop new technologies.The maintenance of biodiversity results in a key issue to create new technologies (especially in biotechnology).In conclusion, maintaining a rich variety of genetic material that may lead to discoveries useful to humans can be ensured by preserving biodiversity.
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Which of the following are allies to the immune system
Mucous Membranes
Digestive system
Skeletal System
Skin
Final answer:
The allies to the immune system include mucous membranes and skin, which are physical barriers against pathogens. The mucous membranes contain MALT which protects mucosal surfaces. The digestive and skeletal systems support the body's overall health and indirectly benefit the immune system, but they are not direct allies in the same manner as the mucous membranes and skin.
Explanation:
The body has multiple defenses against potential infections, each contributing in different ways to the immune system. Among these defenses are the mucous membranes and the skin, which act as physical barriers to pathogens. The mucous membranes are part of both the innate and mucosal immune systems, containing mucosa-associated lymphoid tissue (MALT) that protects the mucosal surfaces, such as the nasal passages and the gastrointestinal tract, against microbial invasion. Skin is a part of the integumentary system and also serves as a first line of defense by providing a barrier to outside pathogens and contributing to the innate immune system.
While the digestive system and skeletal system are not typically considered allies of the immune system in the same way, they do play supportive roles. The digestive system benefits from the actions of the immune system, particularly MALT, which defends against pathogens entering through the gastrointestinal tract. The skeletal system contributes to overall health by protecting organs, producing blood cells, and supporting the body, indirectly aiding the immune system by maintaining the body's structural integrity, but it is not directly involved in immune defense like the skin and mucous membranes.
A rock will weather faster after it has been crushed because its *
A) The surface area has been increased
B) Density has been decreased
C) Volume has been increased
D) The molecular structure has been altered
Answer:
A. The surface area has been increased
Explanation:
After a rock is crushed, it's overall surface area is increased, which makes it more prone to natural processes of weathering/erosion/deposition.