Because DNA is replicated by using the original strands as a template, every DNA molecule has one _____ strand and one _______ strand.
A. Adenine, Thymine
B. Guanine, Cytosine
C. New, Original
D. Nucleotide, Carbohydrate

Answer:

Koalas evolved after trout.

Explanation:

A cladogram is the diagrammatical representation of the relationship between the organisms. From the cladogram, it can be said that Koalas evolved after trout. Thus, option D is correct.

A cladogram is used to show the relation between the different species through branching. It tells about the sequence in which the characteristics were derived.

From the cladogram, it can be seen that trouts developed the jaws, and amoeba are unicellular organisms. However, Trouts and Koalas do not share the same class but Koalas evolved after trout in the geological timeline of evolution.

Therefore, the Koalas evolved after trout.

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Answer:

1,126 73/100

Explanation:

Answer:

2,3,4,6,7 absolutely. 1 no since bacteria is alive and is single celled, 5 no because an example of snakes don't develop, 8, some don't maintain it.

Answer:

__X_Are made of cells and have an organized structure.

__X_Reproduce and pass their genes(traits, characteristics) to offspring.

_X__Metabolize and obtain energy needed for food(light for plants).

___Grow and become larger.

_X__Develop and become specialized(an example is a human going from being carried to crawling, toddling, and then walking).

_X__Over long periods of living, things evolve in response to their environment.

__X_Respond to their environment.

_X__Maintain homeostasis.

Explanation:

I hope this is the answer you are looking for and I hope this helps!

Metamorphic Rock Isua

Metamorphic rock, estimated to be as old as 3.8 billion years, located near Isua at Qorqut Sound, Greenland.

Answer:

What kind of rock is this?

✔ igneous

Where would this rock most likely be formed?

✔ underneath Earth’s surface

To which group of rocks would this rock belong?

✔ coarse-grained rocks

Explanation:

Just worked on this assignment

Answer:

Energy is passed between organisms through the food chain. Food chains start with producers. They are eaten by primary consumers which are in turn eaten by secondary consumers.

Explanation:

Answer:

statement A is not true.

Explanation:

Oogenesis gives one large ovum and 3 small polar bodies, each being diploid. Spermatogenesis gives four equal sperm, each being haploid. A homologous pair of chromosomes is the chromosomes which influence the same genetic traits.

Cells can increase membrane fluidity using homeoviscous adaptation by introducing double bonds and using shorter fatty acid chains.

Introducing double bonds creates unsaturated fatty acids, which have kinks in their structure that prevent them from packing tightly together. This leads to increased membrane fluidity.

Similarly, using shorter fatty acid chains also increases membrane fluidity. Shorter chains have less surface area for interactions with other fatty acid chains, leading to looser packing and more fluidity.

Therefore, the correct choices are:
- Introducing double bonds
- Using shorter fatty acid chains

Lengthening fatty acid chains, adding lipid rafts, and using mainly saturated fatty acids would actually decrease membrane fluidity, so these choices are incorrect.

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Answer:

The Digital signal is less vulnerable to noise and more likely to arrive intact

The Digital signal can be copied many times without losing quality

Explanation:

ApE-x

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:)

Answer:

The Digital signal is less vulnerable to noise and more likely to arrive intact

The Digital signal can be copied many times without losing quality

Explanation:

test

Answer:

D. The amino acid metnionine

Explanation:

Bio

Mitosis and Meiosis are forms of reproduction that cause new cells to result from existing cells. The option that best describes how mitosis is related to cellular  reproduction is;

Mitosis is a reproductive process that takes place in single-celled (unicellular) organisms. It results in the formation of two somatic cells from the mother cell.  

Since no sex is required for mitosis to take place, it is referred to as asexual reproduction. Mitosis can also take place in the somatic cells of multicellular organisms.

So, the basic description of mitosis is that it is a phase in asexual reproduction that results in the formation of identical nuclei in the daughter cells.

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Answer: d

Explanation:

During the first cell-mediated immune response, a virus infects a cell. Endogenous antigens are presented on the cell's surface, CD8+ T cells are activated, differentiate into cytotoxic T lymphocytes, release granzymes around the target cell, and induce apoptosis of the target cell.

The correct sequence of occurrence of these events during the first cell-mediated immune response by the immune system is as follows:

b. Virus infects a cell, and infected cell presents endogenous antigens on its surface.

e. CD8+ T cell activated by TH1 cell after recognizing the endogenous antigen on the surface of the target cell.

a. CD8+ T cell becomes cytotoxic T lymphocytes.

c. Granzymes released around the target cell.

d. Apoptosis of the target cell occurs

Virus infects a cell, and infected cell presents endogenous antigens on its surface:

During a viral infection, the virus enters host cells and replicates within them. Infected cells process viral proteins into small peptide fragments called antigens. These antigens are then presented on the surface of the infected cell using major histocompatibility complex class I (MHC-I) molecules.

CD8+ T cell activated by TH1 cell after recognizing the endogenous antigen on the surface of the target cell:

CD8+ T cells, also known as cytotoxic T lymphocytes (CTLs), have receptors that can recognize specific antigens presented on infected cells by MHC-I molecules. Once a CD8+ T cell recognizes the endogenous antigen, it becomes activated.

CD8+ T cell becomes cytotoxic T lymphocytes:

Upon activation, CD8+ T cells differentiate into cytotoxic T lymphocytes. These cells are specialized in killing infected or abnormal cells. They undergo clonal expansion, producing a large population of effector CTLs.

Granzymes released around the target cell:

Cytotoxic T lymphocytes release cytotoxic granules containing molecules like granzymes and perforin. Granzymes are enzymes that induce apoptosis, or programmed cell death, in the target cell. Perforin creates pores in the target cell's membrane, facilitating the entry of granzymes.

Apoptosis of the target cell occurs: The released granzymes enter the target cell and trigger a cascade of events leading to its apoptosis. This programmed cell death helps eliminate infected or abnormal cells and prevents the spread of the virus.

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Answer:

answer

Explanation:

Answer:

XD THX!

Explanation:

Resource partitioning can promote long term coexistence of competing species, thus increasing biodiversity by exploit different resources.

Resource partitioning is a mechanism that promotes coexistence between competing species in a given ecosystem, the coexistence of species is a vital contributor to the overall biodiversity of an ecosystem. Resource partitioning occurs when different species, competing for the same resources, adopt different strategies to share those resources. Resource partitioning allows competing species to coexist, reducing the likelihood of competitive exclusion. This is because different species can exploit different resources or the same resource at different times or different ways.

Over time, species that partition resources tend to evolve to be increasingly specialized, as natural selection favors individuals that more effectively compete for a particular resource. The specialized traits that emerge from resource partitioning help species to coexist in a given ecosystem. This ultimately contributes to long-term coexistence of competing species, and thus increasing biodiversity. Therefore, resource partitioning is an essential mechanism in promoting species coexistence and diversity in any given ecosystem.

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Answer:

plant cells have a cell wall and animal cells do not

plant cells are rectangular in shape and animal cells are circular

The mean division time for bacteria population C is 20 minute. Calculate how many bacteria will be present after 4 hour, when tarring with 50 bacteria is 2 hours.

The amount of time a bacterium needs to multiply twofold in a given amount of time is known as its generation time. Depending on the organism, this generation time can change.One E. coli bacteria is known to be produced every 20 minutes on average. Therefore, the E. coli bacteria can multiply by two in just 20 minutes. If there are originally 50 cells present in the culture medium, the E coli bacteria will multiply by completing 6 generations in 2 hours and increasing in number to 3200.

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Answer:

stomata

Explanation:

The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata

Answer:

D-Glucose

Explanation:

Answer:

1. Fluids are substances such as liquid and gas that can easily flow and have random molecular motion.

2. Blood transports oxygen to many parts of our bodies. It also takes carbon dioxide to the lungs, kidneys, or other filters to be removed from our bodies.

3. When a fluid is contaminated, it may cause serious damage to the environment. For example, if an organism consumes polluted water, it could get very sick and possibly die.

4. Fluids such as water can be used to cut metal by being sprayed at a high speed. Gasoline is used to run all kinds of machines. Water can also be used to clean and cool down machines.

5. Blood, sweat, and urine are all important fluids in our bodies and are created by our bodies.

Explanation:

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O Dew will form on leaves.

The dew point is the temperature at which water vapor in the air will condense into liquid droplets. It is a measure of the amount of moisture in the air. The higher the dew point, the more moisture in the air. The dew point temperature is determined by the air temperature and the amount of water in the air. When air cools, its capacity to hold moisture decreases. If the air cools to its dew point, the excess moisture condenses, forming dew.

In the morning, the temperature on the ground is often more excellent than the temperature in the air. As the sun rises, the ground warms up, and the air above it cools. As the temperature drops to the dew point, the moisture in the air condenses on surfaces such as leaves, blades of grass, and other outdoor surfaces that are at or near the dew point temperature.

The statement "Air will contain more water vapor" is incorrect, as dew forms when the air can no longer hold its moisture and the excess water vapor condenses.

The statement "Clouds will disappear" is not correct, as dew formation is a phenomenon related to the condensation of water vapor, and clouds are formed by the same process, but at higher altitudes. "Water vapor in the air will evaporate" is also not correct, as the temperature dropped to the dew point, which is the point where the water vapor condenses, not evaporates.

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Answer:

1.Prophase

2.Metaphase

3.Anophase

4.Telophase

5.Cytokinesis

Small pieces of paper with a light stickiness on the back are known as sticky notes, Post-it notes, or repositionable notes. The notes can be repeatedly taken from and reattached to a variety of surfaces and papers thanks to the adhesive.

Canary yellow, three-inch squares were the original form of post-it notes. Sticky notes are available in a wide range of sizes, shapes, and colours nowadays. Every day, people utilise sticky notes all across the world. People always carry and use sticky notes, whether they are at home, at work or in any other setting. Would you consider them to be a brilliant innovation that was created entirely by chance? It is real. Sticky notes were not intentionally invented. Instead, a chemist at 3M Company named Dr. Spencer Silver created a novel, low-tack adhesive in 1968 that could adhere to objects while simultaneously being moved around a number of times. Instead of the super-strong adhesive he was attempting to create, he created a super-weak one.

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Answer:

Mitochondria

Explanation:

That equation is for Cellular Respiration and it takes place in the Mitochondria in the Cytoplasm

A potential difference of approximately 156.23 volts is needed to accelerate an electron to have a wavelength of 0.125 nm.

To determine the potential difference needed to accelerate an electron to a specific wavelength, we can make use of the de Broglie wavelength equation:

λ = h / √(2meV)

where λ is the wavelength, h is Planck's constant (approximately 6.626 x \(10^{(-34)}\) J·s), me is the mass of the electron (approximately 9.109 x \(10^{(-31)}\) kg), and V is the potential difference.

When we rearrange the equation to account for V, we get:

V = \((h^2)\) / (2me\(\lambda^2\))

Plugging in the given values:

λ = 0.125 nm = 0.125 x \(10^{(-9)\) m

V = ((6.626 x \(10^{(-34)})^2\)) / (2 x 9.109 x \(10^{(-31)\) x (0.125 x \(10^{(-9)})^2\))

Calculating this, we find:

V ≈ 156.23 volts

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Molecular models assist us in seeing chemical compounds that we cannot see with our open eyes.

Molecular models are three-dimensional visual representations of molecules. Molecular models allow us to see exactly what a molecule looks like. We can have a better grasp of the various transitions in a molecule by using a molecular model.

The advantage of utilising a molecular model that depicts the components involved in cellular respiration to compare the quantity of carbon released into the atmosphere is that it provides a visual of the process that is not visible to the open eye.

It aids in understanding the foundations of physical and chemical interactions, which are difficult to compute using experimental approaches. It also aids in the development of new theories, models, procedures, and products.

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Using a molecular model that shows the composites involved during cellular respiration to compare the quantum of carbon cycle released into the atmosphere allows a visual of the process that isn't visible to the mortal eye.  

It helps understand the fundamentals of physical and chemical relations, which are delicate to calculate using experimental procedures. It also helps develop new propositions, models, processes, and products.  

Since the carbon cycle is a global miracle, it can not be viewed at once. Using a model helps scientists and scholars understand how carbon moves through and impacts the terrain.

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True. Any discernible change within germ cells is known as a germline mutation (cells that, when fully developed, become sperm and ova).

When either a mutant sperm or oocyte combine to produce a zygote, only mutations in these cells can be transmitted to progeny. Every somatic and germline cell in the progeny carries this mutation as a result of the fast division of germ cells following this fertilisation event, which creates all of the body's cells.

Germline mutations can emerge during the zygote's development and can be brought on by a wide range of endogenous (internal) and exogenous (external) sources. Offspring with a genetic disease that neither of the parents have can result from a mutation that solely affects germ cells.

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