If steel is more dense than lake water, why can a boat float?

Fossils appear in the strata in a specific order based on age. The correct option is D

Principle of faunal succession states that fossils appear in rock strata in a specific, predictable order based on the relative ages of the rock layers and the evolutionary relationships of the organisms represented by the fossils.

This principle allows geologists to use the relative ages of rocks and fossils to determine the relative age of other rocks and fossils in the same area and to establish a relative time scale for geologic events.

Therefore, By comparing the sequence of fossils in different rock strata, geologists can determine which strata are younger and which are older, and thus build a chronological framework for the Earth's history.

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Answer:

pug-eye and breathing problems

beagle-epilepsy

siberian husky -autoimmune disorders

The amounts are so small that it is easy to become confused and do the steps in the wrong order or miss a step, so it is important to check that the solution enters and leaves the tip as you need it to. If a reagent is missing, an entire experiment can be invalid.

All the tips are mentioned below.

The substances in the solution are evenly distributed and cannot be easily separated by mechanical means. The dissolved substance is called the solute and the substance in which it is dissolved is called the solvent. Solutions can be found in different states of matter, including liquids, gases, and solids.

Seeing the solution enter or leave the pipette tip is important for several reasons:

Accuracy: Observing the solution level in the pipette tip helps to ensure that the correct volume of solution is being dispensed or loaded, as it allows you to visually verify that the desired volume has been reached.

Precision: Visualizing the solution in the pipette tip can help you to be more precise in your loading or dispensing, as you can ensure that the solution is not overfilled or underfilled.

Avoid Contamination: By observing the solution in the pipette tip, you can help to prevent contamination of the solution or the tip. This is particularly important when dispensing solutions into sterile containers or when working with samples that are prone to contamination.

Verification of Solution Quality: Observing the solution in the pipette tip can also help you to verify the quality of the solution. For example, if the solution is cloudy or contains particulates, you can assess whether it is still suitable for use before dispensing.

In conclusion, seeing the solution enter or leave the pipette tip is a critical step in any laboratory procedure that involves loading or dispensing solutions. It helps to ensure accuracy, precision, and the avoidance of contamination, and can provide important information about the quality of the solution being used.

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The organisms that are able to live in extreme conditions are known as extremophiles.

An extremophile organism is an individual capable of surviving in extreme environmental conditions.

In conclusion, the organisms that are able to live in extreme conditions are known as extremophiles.

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Answer:

competition

Explanation:

Organisms that are able to live in extreme conditions do not have many competitors. This is an advantage because it means they experience a lack of competition.

When menstruation has ceased for at least one year, it is considered menopause. Menopause marks the end of a woman's reproductive years and occurs when the ovaries stop releasing eggs.

It is a natural biological process that typically occurs between the ages of 45 and 55, but can occur earlier or later. Menopause is accompanied by a decrease in hormone production, specifically estrogen and progesterone, which can cause various symptoms such as hot flashes, mood changes,  dryness, and sleep disturbances.

While menopause is a normal part of aging, it is important for women to discuss any concerning symptoms with their healthcare provider to ensure proper management and treatment.

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Answer:

D. It uses numerical data to show the rate at which a virus spreads through a population

Sure, I can help you with your question! To determine if you have bought enough dozens of eggs for all the contestants who have registered for the race in Python, you can use the following code:```pythoneggs_needed = dozens_needed = eggs_needed // 12if eggs_needed % 12 != 0:  

dozens_needed += 1print("You need to buy at least", dozens_needed, "dozen eggs.")```

Here's how the code works:

1. The `input()` function is used to ask the user how many eggs are needed for the race. The value entered is converted to an integer using the `int()` function and stored in the `eggs_needed` variable.

2. The number of dozens of eggs needed is calculated by dividing the number of eggs needed by 12 using the `//` operator, which performs integer division (i.e., it returns the quotient without the remainder). The result is stored in the `dozens_needed` variable.

3. If the number of eggs needed is not a multiple of 12 (i.e., there is a remainder), then one extra dozen of eggs is needed to make up for the remaining eggs. This is accounted for by adding 1 to the `dozens_needed` variable.4. Finally, the result is printed out using the `print()` function, which displays a message telling the user how many dozens of eggs they need to buy.

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Normal cells are subject to strict regulation and control mechanisms that ensure proper cell division, growth, and proliferation. While in cancer cells  that lost control over regulatory mechanisms which leads to uncontrolled and continuous cell division.

In general , cell cycle are series of tightly controlled events that occur in a specific order, leading to the duplication and division of cells. Also  each phase is regulated by a complex network of checkpoint pathways that monitor and control the progression of the cell cycle.

During cell division their are various check points during the G1 phase, as cells always check for DNA damage and other abnormalities. many errors or damage are detected, the cell cycle get paused, and the cell enters a state of cell cycle arrest until the damage is repaired. This is same during the G2 phase, that check for DNA replication and errors which ensure that cell is ready for division.

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Answer:

Cars,Plans,Doors,Ships,Trains,Rocking chair,

Hope this helps! :)

Biodiversity decreases because plants and animals adapted for fresh water will not survive and reproduce in a different environment.

The term sea rise has to do with a situation in which there is a sudden increase in the sea level. This could lead to a sudden overflow of water into rivers lakes and ponds.

We know that sea water is salty, there is excess salt concentration in a sea water while fresh water does not contain salt at all. In these cases whereby there is an overflow of seawater, the water carries salt along with it. This implies that land and fresh water could become contaminated with this salt and that would have catastrophic effects on these ecosystems.

Since fresh water organisms can not tolerate a sudden increase in the concentration of salt in the ecosystem, biodiversity decreases because plants and animals adapted for fresh water will not survive and reproduce in a different environment.

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MISSING PARTS

When sea levels rise as rapidly as they have been, even a small increase can have devastating effects on coastal habitats farther inland. It can cause destructive erosion, wetland flooding, aquifer and agricultural soil contamination with salt, and lost habitat for fish, birds, and plants. What happens to biodiversity in coastal communities as the sea level rises?

A

Biodiversity increases due to the merging of salt water and fresh water ecosystems.

B

Biodiversity decreases because plants and animals adapted for fresh water will not survive and reproduce in a different environment.

C

Biodiversity decreases because there are fewer salt water species than there are fresh water species.

D

Biodiversity increases due to the survival of both fresh water and salt water species.

To evaluate the hypothesis that mutations in SLC7A9 have a greater effect on cysteine transport across the plasma membrane of kidney cells than mutations in SLC3A1, further analysis and experimentation are required.

By comparing the effects of mutations in these two genes on cysteine transport, researchers can assess the specific impact each gene has on the process. This can be done through techniques such as cell culture experiments, functional assays, or studying patient samples with mutations in these genes. By comparing the severity and consequences of mutations in SLC7A9 and SLC3A1, scientists can determine which gene has a greater influence on cysteine transport.

In regards to the claim that cysteine is a large polar molecule, the data would likely involve structural analysis or experimental observations. Structural analysis can provide information about the size, shape, and polarity of cysteine molecules. Experimental data could include studies that measure the solubility or diffusion of cysteine in different solvents or membranes. These data would support the claim that cysteine is a large polar molecule if they demonstrate that cysteine has a significant size and possesses polar functional groups that allow it to interact with water or other polar substances.

In conclusion, to evaluate the hypothesis about mutations in SLC7A9 and SLC3A1, further experimentation and analysis are needed. Similarly, to support the claim that cysteine is a large polar molecule, structural analysis and experimental data would be required to demonstrate the size and polarity of cysteine molecules.

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Answer:

DNA ligase

Explanation:

Answer: The nucleus

Explanation: I got it right on the test.

Taxonomy categorises organisms according to morphological and molecular characteristics and their evolutionary relationships. C) help us understand the differences and similarities among living things.

Taxonomy is the study of different organisms, their classification into categories according to their morphological and molecular characteristics and their evolutionary relationships, and assigning to each of them a binomial name.

The categories in where organisms are classified are:

• Domains

- archaea domain

- bacteria domain

- eukarya domain

• Kingdom

Includes different phyla closely related. This classification considers morphological traits.

- The bacteria domain includes the Eubacteria kingdom.

- The archaea domain includes the archaebacteria kingdom.

- The eukarya domain is divided into four kingdoms: Protist, Fungi, Plantae, and Animalia.    

• Phylum

• Class

• Order

• Family

• Genus

• Species

Dividing species into kingdoms help us understand the differences and similarities among living things.

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Answer:

If a plant that normally self-pollinates receives a pollen grain from another plant, this is known as cross-pollination.

Cross-pollination can occur naturally through wind, insects, or other pollinators carrying pollen from one plant to another, or it can be done intentionally by humans for the purpose of breeding or hybridization.

In a self-pollinating plant, the flower has both male and female reproductive structures, so the plant can reproduce without the need for external pollination. However, if a pollen grain from another plant is received, it may fertilize the female reproductive structures of the self-pollinating plant, resulting in a hybrid offspring with genetic traits from both parent plants.

The extent to which the hybrid offspring differs from the parent plants will depend on the genetic makeup of each plant and the extent of genetic variation between them. In some cases, the hybrid offspring may have desirable traits that make it more adaptable to different environmental conditions or more resistant to pests and diseases

Answer:

Behavioral responses in organisms require communication between an organism and its environment (option C).

Explanation:

The behavior of an organism depends on the function of relationship with the environment that surrounds it, and the way to respond to the diverse stimuli that are in this environment.

Behavioral responses always occur as a result of the interaction between the physical environment and other living organisms. This interaction triggers a series of stimuli that are perceived by the senses and processed by each organism, developing an appropriate response to each of them.

Answer:

A.an organism's cells and systems.

Explanation:

Got it on a study island

Hope this helps anyone :D

Answer:

The earth formed approximately 4.6 billion years ago from a nebular cloud of dust and gas that surrounded the sun. As the gas cooled, more solids formed. The dusty material accreted to the nebular midplane where it formed progressively larger clumps. ... This process continued until an earth-sized planet had formed.

Answer:

Resistant

Explanation:

A good aspect of the ecosystem can either be resistant or resilient when there is a disturbance or a form of deviation from the regular occurrence in the ecosystem structure, function, or both.

For an ecosystem to be resistant means it maintains structures and goes on with normal functions despite the disturbance or alteration in environmental circumstances.

Hence, in this case, an ecosystem that retains the structure and continues normal functions even when environmental conditions change is RESISTANT.

To write an inclusive hypothesis from investigation, it should be structured with Mechanism of Evolution, Hypothesis and Data.

Mechanism of Evolution

The mechanism of evolution that I think caused the increase in FQ resistance is natural selection. Natural selection is the process by which organisms that are better adapted to their environment are more likely to survive and reproduce. In this case, the bacteria that are resistant to FQ are more likely to survive and reproduce because they are not killed by the drug. This means that the population of bacteria will become more resistant to FQ over time.

Hypothesis

My hypothesis is that the increase in FQ resistance in the bacteria on the farm is due to natural selection. I believe that this is because the bacteria that are resistant to FQ are more likely to survive and reproduce, which means that the population of bacteria will become more resistant to FQ over time.

Data

The new data supports my hypothesis because it shows that the number of bacteria that are resistant to FQ has increased. The data also shows that the bacteria that are resistant to FQ are more likely to be found in the environment where the FQ is being used. This suggests that the bacteria are evolving to become resistant to the FQ.

How to Include the Data

You can include the data in your hypothesis by stating that the increase in FQ resistance is due to the fact that the bacteria that are resistant to FQ are more likely to survive and reproduce. You can also include the data by showing a graph of the number of bacteria that are resistant to FQ over time.

This is an example of how to include the data in the hypothesis:

I hypothesize that the increase in FQ resistance in the bacteria on the farm is due to natural selection. This is because the bacteria that are resistant to FQ are more likely to survive and reproduce, which means that the population of bacteria will become more resistant to FQ over time. The data supports this hypothesis because it shows that the number of bacteria that are resistant to FQ has increased. The data also shows that the bacteria that are resistant to FQ are more likely to be found in the environment where the FQ is being used. This suggests that the bacteria are evolving to become resistant to the FQ.

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Answer:

Forensic pathologists are specialist medical doctors who have had advanced training in human anatomy, pathology and performing autopsies on people who die of trauma or injury.

Explanation:

You basically work at a morgue. Maybe you are an embalmer. Does any of this apply to you? You need to be mentally, emotionally and physically prepared for this type of work.

Answer:

There are four different bases, each of which pairs with only another. Adenine (A) pairs with Thymine (T), and Guanine (G) pairs with Cytosine (C). This rule is universal to all DNA. A good way to remember is apples in the tree (adenine and thymine), cars in the garage (cytosine and guanine) (credit to the Amoeba Sisters)

The answers are that the geological process responsible for fossils being found on high mountains today is called Orogeny Tectonics. With no radioactive isotopes, the Earth's geography would be vastly different and void of life. If radioactivity produced twice as much heat the earth would become unstable.

The discovery of fossil ammonites within rocks at the highest mountains on Earth is due to orogenic plate tectonics. Plate tectonics is the name we use to describe a process in which pieces of the earth's crust move and often slam into each other, causing one of these to pile onto the other.

This can lead to the formation of mountains and mountain ranges. This process helps to explain why fossils of ammonites known to dwell in the ocean can be found in mountains.

Radioactive isotopes, or better yet, the decaying of radioactive isotopes, are responsible for generating most of the Earth's internal heat. The internal heat of the earth is the driving force of plate tectonics and without it, much of the geological activities responsible for the earth's current geography would not have happened.

Radioactive isotopes were vital in allowing for the conditions of the earth at the time that life evolved, and the heat they produce allows the earth to have a molten core and thus generate a magnetic field for protection.

Now, if the heat produced by radioactive isotopes were to double, the  Earth's internal temperature would nearly double. Since this heat is the driving force for plate tectonics, we can expect a sharp increase in the number of earthquakes and volcanic eruptions. These can, in turn, cause tsunamis and changes to the earth's global temperature. Mountains would form continuously and continents may break apart. This instability would make life on earth's surface improbable.

Therefore, the geological process responsible for fossils being found on high mountains today is called Orogeny Tectonics. Without radioactive isotopes, the Earth's geography would be vastly different and void of life. Radioactivity producing twice as much heat would make the earth very unstable.

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Stomach acid breaks down proteins is the process that best describes a physical change that occurs during digestion.

When a protein source attains your stomach, it is divided into smaller chains of Amino acids by hydrochloric acid and proteases. Peptides connect amino acids, which are broken down by proteases. These smaller amino acid chains pass from your stomach into your small intestine.

Lipase is an enzyme that converts fats into fatty acids. Protein is broken down into amino acids by protease.

When you eat something, your body's digestive system breaks it down into individual amino acids, that are consumed and utilized by cells to construct other proteins as well as a few other macromolecules like DNA. 

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Answer:

The video says that Tibetan people from birth have higher oxygen saturation due to evolution.

The video says that people in Siberia and the high arctic have adapted to survive extreme cold.

I think that one evolution that could be beneficial to humans is the ability to have more tougher skin because our skin doesn't have too many layers.

Explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day! Hope you get an A in that class!!!!

Socialism focuses on the greater good of the community as a whole, whereas capitalism relies on the idea of self-interest to drive the economy.

The term capitalism refers to a system in which the means of production is owned by individuals while in socialism, the means of production is collectively owned by the members of the society.

The major difference between socialism and capitalism is that; "socialism focuses on the greater good of the community as a whole, whereas capitalism relies on the idea of self-interest to drive the economy."

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Answer:The competitive exclusion principle says that two species can't coexist if they occupy exactly the same niche (competing for identical resources). Two species whose niches overlap may evolve by natural selection to have more distinct niches, resulting in resource partitioning.

Explanation:hope this helps happy hallowen

The strategy of combining two complementary plant protein sources permits the amino acids in one food to make up for those lacking in the other food.​ Thus, option C is the right choice.

Protein complementation makes sure you get all nine amino acids in your diet by combining two or more sources of protein instead of just one. Our bodies receive the complementary proteins they need as long as they are taken throughout the day, not all at once. As a result, the technique of combining two plant protein sources that complement one another allows the amino acids in one diet to make up for those that are deficient in the other food.

Combining different vegetarian protein sources will guarantee that you consume all 9 essential amino acids. It's not necessary to complement proteins at the same meal. You may make up for the methionine you missed out on at lunch if you ate beans for lunch and later had some raw almonds as a snack. If properly planned, a vegetarian diet can give you all the vitamins, minerals, and amino acids your body requires.

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Complete question is:

The strategy of combining two _____ plant protein sources permits the amino acids in one food to make up for those lacking in the other food.​

A. ​complete

B. ​whole-grain

C. ​complementary

D. ​indigestible

E. ​high-tryptophan

Answer:

Its C

Explanation:

The dipeptide formed will be **proline-threonine** when the tRNA anticodons pair with the appropriate codons, bringing their specific amino acids together.

In the process of translation, tRNA molecules contain an **anticodon** that recognizes and pairs with a specific codon on the mRNA. Each tRNA carries a specific **amino acid** corresponding to its anticodon. When the anticodons of the tRNA molecules bind to the codons on the mRNA, the amino acids carried by the tRNAs are brought close together, allowing a peptide bond to form between them. In this case, the tRNAs carrying proline and threonine will pair with their respective codons, leading to the formation of a dipeptide with the sequence proline-threonine.

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