Which of the following indicates that all organisms can be traced back to a common ancestry?
Answers
Answer:
All life as we know it contain DNA/RNA and protein. Fossil records and extant species all prove this fact. The genetic material's inherit ability shows how that the DNA of all creatures, both living and dead, can be traced back to a single point, which is our common ancestral origin of life.
Answer: Almost all genes in microorganisms, plants, and animals have the same codons.
Explanation: give me brainliest plz
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Describe what occurs during the process of seed development.
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In angiosperms, the process of seed growth begins with double fertilization and concerns the fusion of the egg and sperm nuclei into a zygote. The second part of this process is the fusion of the polar nuclei with a second sperm cell nucleus, thus forming a primary endosperm.
What happens during seed formation?When pollen anchors on the flower's stigma, it grows and develops a pollen tube, which then fast grows towards the plant's ovary. Once it sees an ovule, the pollen tube explosions to release sperm cells, which fertilize the ovule and start seed formation
Thus, double fertilization is part of seed development.
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Base your answer on the information below and on your knowledge of biology.
A student measured oxygen and carbon dioxide concentration levels in an aquatic ecosystem during a 24 hour period. Identify two biological processes that are responsible for the production of varying amounts of carbon dioxide and oxygen within the aquatic ecosystem.
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Two biological processes responsible for producing varying amounts of carbon dioxide and oxygen within aquatic ecosystems are 1) respiration by aquatic plants and animals and 2) photosynthesis by aquatic plants.
What is an aquatic ecosystem?
An aquatic ecosystem is any freshwater or saltwater environment and the characteristic flora, fauna (plants) and animals (animals) that inhabit that habitat. Freshwater ecosystems include rivers, lakes, and ponds. Saltwater ecosystems include seas and oceans. Aquatic ecosystems have historically been important to humans and other organisms. Aquatic ecosystems not only provide a food source for a wide variety of organisms, but are also essential for cycling important gases and nutrients such as carbon dioxide, nitrogen and phosphorus.
Aquatic ecosystems are known to have high levels of biodiversity.
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You are observing proteins in a lab for an experiment. During transport, they have started to unwind and lose their shape.You notice long strands wound into alpha helices. What level of structure are the proteins in?
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The level of the structure is the proteins in the secondary.
What is the structure of secondary?A polypeptide chain's adjacent amino acid residues are arranged in regular patterns in space, known as secondary structure. It is kept in place by hydrogen bonds between the amide hydrogens and the peptide backbone's carbonyl oxygens. Helixes and structures are the two main secondary structures.Local regions of proteins can be organized into one of three three-dimensional configurations: alpha helices (-helix), beta sheets (-strand), or omega loops. The alpha helix is the most prevalent secondary protein shape because it is stable and low-energy.The interaction of amino acids with every backbone NH hydrogen bound with the backbone C=O group of the corresponding amino acid residue in the polypeptide chain results in the- helix formation. The- helix motif is particularly prevalent in transmembrane regions of proteins that traverse the lipid bilayer.You are observing proteins in a lab for an experiment. During transport, they have started to unwind and lose their shape.
The level of the structure is the proteins in the secondary.
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Describe how the jump rope could be used to model the cell membrane of a plant
cell.
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Answer: Plants can use the energy from sunlight to turn water and carbon dioxide into. When the cell has enough organelles to make two cells, the division process starts. Let's discuss the process of photosynthesis again, this time taking a closer look at it. Just A long rope to represent the cell wall.
Jump rope is thin and elastic which is made by twisting two threads together which somewhat looks like a cell membrane can be used as a model for plant cell membrane.
What is cell?"The cell is structural and functional unit of life."Every organisms are made up of one or more number of cells.Each cell have various organelles that perform specific functions.What is cell membrane?"It is the outer layer of cell that separates interior of the cells to their surroundings."It is thin and flexible.Cell membrane is composed of bilipid layer in which proteins are embedded on it.It act as a semi-permeable membrane that only only specific molecules to pass through it.Hence, the thin and elastic nature of jump rope could be used to model the cell membrane of a plant cell.
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Which activity represents the single largest home use of water in the United States
Answers
Answer:
Flushing the toilet
Explanation:
The average household in the U.S. flushes the toilet at least 15-20 times per-day.
Answer: I think it's Agriculture
Agriculture is a major user of ground and surface water in the United States, accounting for approximately 80 percent of the Nation's consumptive water use and over 90 percent in many Western States.
irrigation
Thermoelectric power and irrigation remained the two largest uses of water in 2015, and total withdrawals decreased for thermoelectric power but increased for irrigation. Withdrawals for thermoelectric power were 133 Bgal/d in 2015 and represented the lowest levels since before 1970.
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Explanation:
Part of the dermal tissue that Is made of hard, dead, cork cells is the
Answers
Answer:
Periderm!
Explanation:
Peridermis: It forms the outer bark of roots and stems of a certain age (generally greater than one year). Formed by several layers of dead cells, the most superficial form the suber or cork, with thick walls and full of air.
each atom of the periodic table is
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Answer: Each atom of the period table is in order of increasing atomic number.
Explanation: I hope this helps! :)
13. A small torn piece of Walmart's cotton T-shirt is found at the scene of a break-in. One of the suspects was said to be wearing a white T-shirt. What factors do the investigators need to consider in determining the forensic value of a small piece of a cotton T-shirt? Obj. 4.7
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The factors the forensic investigators need to consider in determining the forensic value of a small piece of a cotton T-shirt is: If the T-shirt parts fit perfectly to the ripped shirt, this is personalized proof or individualized evidence.
However, T-shirt portions may be stretched and ragged, making it difficult to reassemble the pieces (then it would be considered class evidence).
What is Forensic Value?Forensic refers to something employed in or appropriate for courts of justice. The phrase derives from the Latin forensis, which means "public," and forum, which means "court." Forensic can also refer to something related to or using scientific processes utilized in a criminal investigation.
This is also known as forensic science. As a result, forensic investigation is defined as an inquiry conducted in such a way that the facts gathered may be utilized in a court of law.
Automation frees up examiners' time for analysis and reporting, allowing them to use that time to establish a stronger case. Examiners are required not just to assess processed data but also to discover any problems that may have happened during processing.
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How does niche partitioning facilitate the coexistence of 20 terrestrial bird species investigated in Mohd-Azlan et al. (2014)? (200 word answer
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Niche partitioning facilitate the coexistence of 20 terrestrial bird species investigated in Mohd-Azlan et al dividing resources.
Niche partitioning is a process where species divide resources in order to coexist in a particular habitat. In Mohd-Azlan et al. (2014), niche partitioning facilitated the coexistence of 20 terrestrial bird species by dividing resources. In other words, the birds have found ways to share limited resources such as food and habitat. For example, one bird species may feed on insects while another bird species feed on fruits and seeds.This allows each bird species to access its unique set of resources without direct competition with others.
Another way niche partitioning facilitated coexistence is by using different habitats. For example, some bird species may prefer to inhabit the canopy while others may prefer the understory or ground level. This helps to reduce competition for resources such as nesting sites and food. In conclusion, niche partitioning plays an essential role in facilitating the coexistence of bird species, this is achieved by allowing each species to access resources in a unique way, reducing competition and increasing the likelihood of survival.
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How do evolutionary psychologists use darwin's theory of natural selection?
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Evolutionary psychologists use Darwin's theory of natural selection as a foundational framework for understanding and explaining human behavior and cognition.
Evolutionary psychologists apply the principles of natural selection to study how psychological traits and behaviors have evolved over time due to selective pressures in the environment. They examine how specific psychological traits or behaviors may have provided adaptive advantages to our ancestors in terms of survival and reproduction. For example, certain cognitive biases or social behaviors may have facilitated cooperation or enhanced mate selection.
They analyze how certain traits and behaviors contribute to reproductive success and are more likely to be passed on to future generations. Traits that increase an individual's chances of survival and successful reproduction are favored by natural selection. They investigate how modern-day environments may differ from the ancestral environments in which our psychological mechanisms evolved. This can lead to a "mismatch" between our evolved psychological tendencies and the challenges of contemporary life, resulting in maladaptive behaviors or psychological issues.
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What do you think of the butterfly effect. Use at least one example.
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The butterfly effect is the concept in chaos theory that small initial differences in the starting conditions of a nonlinear system can lead to vastly different outcomes in the future, and one example of the butterfly effect is weather forecasting.
What is the butterfly effect?The butterfly effect is a concept that originated in the field of chaos theory, which studies the behavior of nonlinear systems that are highly sensitive to initial conditions. The idea of the butterfly effect comes from the analogy that the flap of a butterfly's wings in one part of the world could ultimately cause a hurricane in another part of the world, due to the complex interactions and feedback loops within the Earth's atmosphere. This concept has been applied to many different fields, including physics, biology, economics, and the social sciences.
Hence, the butterfly effect is the concept in chaos theory that small initial differences in the starting conditions of a nonlinear system can lead to vastly different outcomes, and an example of the butterfly effect is weather forecasting.
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The frequency of influenza epidemics is associated with the ________.wide variety of virus families that can cause influenzafrequency of mutations in viral genes for envelope spikeslack of available immunizationmany animal and human carriersability of influenza viruses to be transmitted via contaminated public water supplies
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The frequency of influenza epidemics is primarily associated with the frequency of mutations in viral genes for envelope spikes.
Influenza is caused by RNA viruses, which have a high rate of mutation, leading to frequent genetic changes. These changes occur in the envelope spike proteins hemagglutinin (HA) and neuraminidase (NA), which are essential for the virus to infect host cells. As these proteins mutate, the immune system may have difficulty recognizing the new strains, leading to epidemics.
The wide variety of virus families that can cause influenza also contributes to the frequency of epidemics. Influenza viruses are classified into three types: A, B, and C. Type A is further divided into subtypes based on HA and NA combinations. The continuous emergence of new strains from various virus families can lead to widespread infections.
Other factors such as the lack of available immunization, many animal and human carriers, and the ability of influenza viruses to be transmitted via contaminated public water supplies also play a role in the frequency of influenza epidemics. However, the frequency of mutations in viral genes for envelope spikes and the wide variety of virus families are the primary drivers of epidemic occurrences.
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what is the term used to descibe the build -up of a higher concentration of H + on one side of the inner membrane of the mitochondrion than on the other side during the electron transport chain?
Answers
Answer:
espanhis plis plisplisplisplis
what are two use cases for executing anonymous apex code choose 2 answers
Answers
Executing anonymous apex code is a tool that allows users to interactively execute Apex code statements and queries. Given that, there are two use cases for executing anonymous apex code. They are: Use Case 1: Testing Snippets of Code and Use Case 2: Troubleshooting problems with a particular org.
What is anonymous apex code?
Anonymous Apex is a way to test code snippets, practice writing logic, and test governor limits quickly. Anonymous Apex is ideal for making immediate changes to the database for analysis purposes and automating one-time tasks. It is used to quickly test something that you are unsure of, to test a function or class that you've created, and also to verify the results of a particular query.
Use Case 1: Testing Snippets of CodeIt's a best practice to write test code to check that your app works properly, but it can be time-consuming to write test code to test a small part of it. Anonymous Apex is a great tool for quickly testing snippets of code. It's helpful for doing the following: Testing new functionality before incorporating it into a larger codebase. Testing code that was copied and pasted from an external source or developer forum. Testing whether certain code will work in the context of your Salesforce org.
Use Case 2: Troubleshooting problems with a particular org. There are instances when issues in a particular org will arise, and you will have to troubleshoot and find the cause of the problem. This is where anonymous Apex comes in. Because anonymous Apex runs within the context of an org, it can be used to test things like: Creating a record for a particular object Modifying a record for a particular object Deleting a record for a particular object Running a SOQL query Running a DML statement Running SOSL queries Running Apex Code
That's all about two use cases for executing anonymous apex code.
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what is overpopulation and how does it effect us?
Answers
Answer:
The over loaded of peoples is called overpopulation. There will be more crowded and people will be unemployed and It can effect the global warming
Answer:
Overpopulation is is basically when there is too much of something on our planet or anything else.
When you have a tent that holds 5 people but you put 10 people in it, you would be "overpopulating" the tent. there's such thing as over-farming.
another name for the calcification of bone is
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Answer:
Heterotopic ossification is a process that results in the creation of atypical bone tissue outside of the skeleton. Formation is frequently mistaken for ossification. Formation is the process of potassium ions and crystals forming within tissues and cells.
Explanation:
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what is the name of the triangularly shaped structures in the medulla of a kidney that contain the nephrons?
Answers
Answer: renal pyramids
Explanation:
______ refers to memory about a specific event, and will typically include information about the time, place, and environmental context, etc., in which the information was learned. group of answer choices a. episodic memory b. reflexive memory
c. implicit memory d. all of the answers e. procedural learning
Answers
What is the bond that hold together nucleic acids called
Answers
Answer: Phosphodiester Bond (Covalent Bond)
Explanation: A Phosphodiester bond is a type of covalent bond, and is the kind of chemical bond that joins successive sugar molecules inside a polynucleotide. Nucleic acids are made of small nucleotides, held together by these covalent bonds.
please help A skeletal muscle is a composition of several components bundled one into the other. At which structural level in the muscle does contraction occur to bring about contraction in the whole muscle?
A.
myofibril
B.
muscle fiber
C.
myoneural junction
D.
tendon
E.
fascicle
Answers
Answer:
C. Myoneural Junction
Answer:
myofibril
Explanation:
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Compare and contrast chaparral biome and rainforest biome
Answers
Answer:Some chaparral ecosystems (the ones with low scrubby brush) are very similar to the desert scrub biome , but the chaparral specifically occurs in coastal regions and has much more varied vegetation, whereas desert scrub is a transitional zone between deserts and grasslands.
Explanation:
Which describes how mRNA is used by a cell? A. It is used to replicate DNA during mitosis. B. It is used to stop producing carbohydrates. C. It is used to transfer the code for protein synthesis. D. It is used to correct mutations in DNA.
Answers
Answer:
its C
Explanation:
The role of mRNA is to carry protein information from the DNA in a cell's nucleus to the cell's cytoplasm (watery interior), where the protein-making machinery reads the mRNA sequence and translates each three-base codon into its corresponding amino acid in a growing protein chain.
C. It is used to transfer the code for protein synthesis.
What is a mRNA used for?Each mRNA carries instructions to make a specific protein. These instructions are like a “blueprint.” mRNA delivers these instructions, and cells put the protein together.
What is the mRNA translation process?Translation, as related to genomics, is the process through which information encoded in messenger RNA (mRNA) directs the addition of amino acids during protein synthesis.
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An organization uses task forces to coordinate the activities of various departments. employees also work in teams to increase coordination. this organization most likely has a(n) ________ structure.
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By structure, we mean the framework around which the group is organized, the underpinnings which keep the coalition functioning. It's the operating manual that tells members how the organization is put together and how it works.
It is important to deal with structure early in the organization's development. Structural development can occur in proportion to other work the organization is doing so that it does not crowd out that work.
While the need for structure is clear, the best structure for a particular coalition is harder to determine. The best structure for any organization will depend upon who its members are, what the setting is, and how far the organization has come in its development.
Inherent in any organizational structure also is a distribution of work. The distribution can be formal or informal, temporary or enduring, but every organization will have some type of division of labor.
Matrix Structure, in contrast, relies heavily on horizontal relationships.
In particular, these structures create cross-functional teams that each work on a different project.
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What are the five 5 measures of risk?
Answers
To measure the risk of cardiovascular system is to determine if person is susceptible to some heart related ailment or not.
Five major risk determining factors include,
Blood pressure: High blood pressure is a major risk factor for heart disease, so measuring and monitoring blood pressure is important for identifying and managing risk.
Cholesterol levels: High levels of cholesterol in the blood can increase the risk of heart disease, so measuring and managing cholesterol levels is important for reducing risk.
Body mass index (BMI): BMI is a measure of body fat based on height and weight, and is used to assess the risk of developing heart disease and other health problems.
Blood sugar levels: High blood sugar levels can increase the risk of heart disease, so monitoring blood sugar levels is important for managing risk.
Family history: A family history of heart disease can increase the risk of developing the condition, so taking a family medical history can be helpful in identifying and managing risk.
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I need help with this practice problem solving In your words, give a short summary to my pic
Answers
Answer: The English settlers brought it over from England when they brought supplies to start a new life over
Explanation:
List the inputs and outputs of photosynthesis. What part(s) of the plant are responsible for taking in each of the output
Answers
Water, carbon dioxide, and sunlight-derived energy are the inputs, and glucose and oxygen are the products of photosynthesis.
What is Photosynthesis?In simple terms this process photosynthesis is where plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
Which area of the plant is in charge of absorbing each input?Light energy, the substance in the form of water received via the roots, and carbon dioxide absorbed through the leaves are the inputs to photosynthesis.
What are photosynthesis’s inputs and outputs? What enters and leaves a cell during respiration?Herein Water and carbon dioxide are totally changed into oxygen and glucose during the process of photosynthesis. The plant consumes glucose and produces oxygen as this byproduct. Oxygen and glucose are exactly transformed into water and into carbon dioxide during cellular respiration.
By-products of this process includes a total of carbon dioxide, water, and ATP, which is turned into a kind of energy.
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The difference between the maximum and resting cardiac output is called:.
Answers
Answer:
The difference between maximum and resting CO is known as the cardiac reserve. It measures the residual capacity of the heart to pump blood.
help asap!! please i gotta turn this in soon!
Answers
Answer:
i think its b, and d
Explanation:
Answer:
Explanation:
Protein is a nutrient needed by the human body for growth and maintenance. Aside from water, proteins are the most abundant kind of molecules in the body. Protein can be found in all cells of the body and is the major structural component of all cells in the body, especially muscle.
When you're in a cold place in December and you're planning a vacation for February, are you interested in a location's weather or climate? If it's a summer day and you want to take a picnic are you concerned with weather or climate?
Answers
Answer:
Below your address
Explanation:
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what are plant cells and animal cell ?
Answers
Answer:
plant: eukaryote
animal: prokaryote
Explanation: