10. What is an organ system? List one of the organ systems and the system's function.

The sexually-reproducing fish suddenly became more susceptible to disease following the severe drought due to weakened immune systems.
The severe drought likely caused changes in the fish's environment, such as decreased water volume and increased water temperature. These changes can stress the fish and lead to a weakened immune system. Additionally, the drought may have resulted in reduced food availability and increased competition for resources, further compromising the fish's overall health and immunity. The sexually-reproducing fish suddenly became more susceptible to disease following the severe drought due to weakened immune systems. The severe drought likely caused changes in the fish's environment, such as decreased water volume and increased water temperature.

These changes can stress the fish and lead to a weakened immune system. When fish experience stress, their bodies produce stress hormones, such as cortisol, which can suppress the immune system. As a result, the fish become more vulnerable to infections and diseases.Furthermore, the drought may have caused other adverse effects on the fish's health. For example, the reduced water volume may have led to higher concentrations of pollutants and toxins in the remaining water, further compromising the fish's immune system. In addition, the drought may have caused a decrease in food availability, leading to malnutrition and a weakened overall health in the fish. Malnourished fish are more susceptible to diseases because their bodies lack the necessary nutrients to fight off infections.
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Answer:

angry and greed

Explanation:

here is your answer

Answer:

Without being angry and without being greedy .

Hope you got the answer .

Mark brainliest please

The melting temperature (Tm) of a primer is the temperature at which half of the primer molecules are bound to the DNA template and half are unbound. If the Tm of a primer is too low, it will not bind effectively to the region of DNA that we want to amplify because it will anneal to non-specific regions of the template DNA, leading to non-specific amplification.

Similarly, if the Tm of a primer is too high, it may not bind effectively to the template DNA at all, leading to low amplification efficiency. Therefore, it is important to choose primers with Tm values that are appropriate for the target DNA sequence to ensure efficient and specific amplification.

It's possible that the two primers may not bind effectively to the desired DNA region for amplification due to several reasons. These could include mismatched base pairs, secondary structures like hairpins or dimers, or an unsuitable annealing temperature. Ensuring optimal primer design and selecting the appropriate annealing temperature can help improve primer binding and successful DNA amplification.

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Answer:

it makes you more woke and open mined

Explanation:

If the greenhouse is sealed from the outside atmosphere, how would you predict this isolated system to differ from the carbon cycle of the outside world and in this case the energy of closed system is decreased.

A closed system has been defined as the system in which there has only transfer of energy has takes place this type of system has been known as closed system.

Example - Transfer of heat from a cup of tea.

Mainly there are three type of system.

1:- Open System

2:- Closed System

3:- Isolated System

Open system:-

A system in which there is transfer of both energy and mass these types of system is called as open system.

Example:- Flow of water in a canals

Closed System:-

A  system in which there is only transfer of energy is takes place this type of system is known as closed system.

Example - Transfer of heat from a cup of tea.

Therefore, If the greenhouse is sealed from the outside atmosphere, how would you predict this isolated system to differ from the carbon cycle of the outside world and in this case the energy of closed system is decreased.

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Recent research has suggested that postpartum depression is related to the hormone oxytocin.

A hormone called oxytocin is essential for birthing and nursing. Because it plays a role in social bonding, trust, and attachment, it is sometimes referred to as the "love hormone" or "bonding hormone." Oxytocin levels have been discovered to fluctuate during the postpartum period, and abnormalities in these levels have been linked to a higher risk of postpartum depression. The complicated state of postpartum depression, which is impacted by a number of elements, including hormonal, psychological, and social aspects, must be kept in mind, though. To completely comprehend the connection between oxytocin and postpartum depression, further study is still required.

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Answer:

False

Explanation:

The most Broad category in the organism classification is The Kingdom, which includes 5 categories: Animal, Plants, Protista, Prokaryotes and Fungi. As you can see there are 3 more categories excluding Animal and Plants

The following statement “organisms on earth are currently classified first as either plant or animal.” is False. The classification system includes Bacteria, Archaea, and Eukarya.

Organisms on Earth are not solely classified as either plant or animal. The classification of organisms is much more complex and extensive. The current system of classification used in biology is based on the Linnaean taxonomy, which categorizes organisms into a hierarchy of groups based on their shared characteristics and evolutionary relationships.

The classification system includes multiple domains, such as Bacteria, Archaea, and Eukarya, which encompass a wide range of organisms. Within the Eukarya domain, organisms are further classified into various kingdoms, including Plantae, Animalia, Fungi, Protista, and others.

So, while plants and animals are two major groups within the classification system, they are not the only categories, and many other groups exist to encompass the diverse array of organisms found on Earth.

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An ichnofossil is any part of the hard skeleton left behind by a vertebrate in the fossil record. This statement is false. An ichnofossil is a trace fossil, which is any indirect evidence of past life, such as tracks, burrows, and feces. It is not part of the hard skeleton left behind by a vertebrate.

Cladograms are scientific hypotheses that can be overturned by new data. This statement is true. Cladograms are diagrams that show the evolutionary relationship between organisms based on various traits. New data can cause changes to be made to cladograms which can result in a change to the interpretation of the evolutionary history of organisms.

Angiosperm plants did not appear until after the extinction of the dinosaurs. This statement is false. Angiosperms, also known as flowering plants, appeared in the fossil record at least 140 million years ago. Although the dinosaurs went extinct around 66 million years ago, angiosperms were already widespread and diversifying by that time.

The definition of an analogous character is "a character that has a similar function to a character in a different organism, but these similarities are due to different evolutionary origins". This statement is true. Analogous characters are traits that have evolved independently in different groups of organisms due to similar environmental pressures and not due to a shared ancestor.

In evolution, non-genetic changes that occur during an organism's life span, such as increases in muscle mass due to exercise and diet, cannot be passed on to the next generation. This statement is true. Non-genetic changes that occur during an organism's life span are not heritable and cannot be passed on to the next generation. Only genetic changes that occur in the germ cells, such as mutations, can be passed on to the offspring.

The definition of a monophyletic group is "a group of organisms that has a single ancestor and contains only some of the descendants of this unique ancestor". This statement is false. A monophyletic group is a group of organisms that has a single ancestor and contains all of the descendants of this unique ancestor. This group is also called a clade.

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The metaphase of the onion root, which is used to estimate the number of chromosomes present in the cells of the onion root tip, is characterized by the presence of a distinct nuclear membrane and visible chromosomes.

The chromosomes align along the cell's equator during metaphase, and spindle fibers cling to the chromosomes' kinetochores. For each daughter cell to receive the appropriate amount of chromosomes during cell division, this alignment is crucial. Scientists can calculate the ploidy, or the number of sets of chromosomes, present in the cells of the onion root tip by counting the number of chromosomes that are visible at the metaphase stage.

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--The complete Question is, Which phase of the onion root is characterized by the presence of a distinct nuclear membrane and visible chromosomes, and is used to determine the number of chromosomes present in the cells of the onion root tip?--

Solution:

The four types of chromosomal structural abnormalities can be grouped into the following two groups:

Balanced structural anomalies:

1. Translocations: simple or complex movement of chromosome fragments or whole chromosomes. Chromosome breaks and a part of it is attached to a different chromosome.

2. Inversion: where the chromosomal region is flipped so that it points in the opposite direction. That is, part of a chromosome breaks off at two points and the segment in between turns upside down and then rejoins the same chromosome.

Unbalanced structural anomalies:

3. Duplication: where part of a chromosome is copied. This means that a part of the chromosome is duplicated or has two copies. The result is additional chromosomal material.

4. Deletion: where part of a chromosome is removed. That is, there is DNA loss.

To make Paramecium Contractile vacuole concentration graph useful the salt concentrations descriptions should replaced with actual values.

Thus, option "A" is correct.

What is Paramecium Contractile vacuole

"It is a sub-cellular structure (organelle) involved in osmoregulation."

"A diagram (such as a series of one or more points, lines, line segments, curves, or areas) that represents the variation of a variable in comparison with that of one or more other variables."

It shows that the Paramecium Contractile Vacuole concentration per minute decreases as salt concentration increases.

But the concentration of salt is not mention in quantity so its not clear what are the lowest and highest concentration affecting Paramecium Contractile Vacuole.

Hence, the Paramecium Contractile Vacuole concentration graph can be more useful if the actual values of salt concentration will be mentioned.

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Answer:

FIber

Explanation:

An attribute that is an ancestral state in one context can be derived state in another context when a trait that was present in an ancestor diverged and evolved differently in different groups of descendants. In some descendants, the trait may have remained the same or changed little and, therefore, is considered an ancestral state, while in others, it may have changed significantly and is considered a derived state.

For example, feathers are considered a derived state in birds, but they were an ancestral state in their dinosaur ancestors.Synapomorphy of a clade is an ancestral state within that clade because it is a shared trait inherited from a common ancestor that defines the group, but it has since diverged and evolved differently in different descendant species.

This means that while the trait is ancestral to the group as a whole, it may be considered derived when compared to other related groups that do not share the trait. For example, the presence of hair is a synapomorphy of the mammalian clade, but it is considered an ancestral state within that group since all mammals inherited it from their common reptilian ancestor.

However, it is a derived state when compared to other vertebrates that lack hair. Therefore, synapomorphies are important in defining and grouping organisms but may be considered ancestral or derived depending on the context.

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Answer:

Covalent Bond

Explanation:

If you look for Cl on the periodic table, you'll see that it's a non-metal. Since there are 2 Cl, you have a covalent bond (two non-metals that share electrons).

Answer:

Because atoms could not be seen, Dalton could not base his theory on direct observation, and this was a major stumbling block for many scientists. ... It was easier to express stoichiometric proportions in terms of atoms than in terms of absolute mass.

Explanation:

When working on a biology assignment, Josh was using information from his textbook to answer questions on the immune system. Because it was his first time learning about the immune system, josh had not yet learned or memorized any of the information. Josh has not consolidated this new information about the immune system into his long-term memory.

In the field of science, long-term memory is the ability of the mind to store a piece of information for longer durations, probably for months, years, or a lifetime. An extended memory of the brain is the long-term memory. On the other hand, short-term memory tends to remain in the brain for a few seconds or minutes.

By learning something, we tend to store information in our long-term memory. As Josh was looking at the immune system for the first time, his mind had not formed a long-term memory for it in order to remember it. In order to learn or memorize the topic, Josh has to consolidate information on the immune system mentioned in the textbook in his long-term memory.

Although a part of your question is missing, you might be referring to this question:

When working on a biology assignment, josh was using information from his textbook to answer questions on the immune system. Because it was his first time learning about the immune system, josh had not yet learned or memorized any of the information. Josh has not consolidated this new information about the immune system into his?

short-term memory

working memory

long-term memory

episodic memory

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Answer:

hello good morning ............

Answer:

yes they do, yet they dream in images less than people with sight. They usually have dreams consisting of the other four senses.

Explanation:

I was very curious about this subject when I was younger.

Hope this answers your question:)

Answer:

option (C)

Explanation:

In both plants and animals, RNA contains:

Ribose sugar, phosphates, adenine, uracil, guanine, and cytosine.

Answer:

Its mitochondria

Explanation:

Hope his helps

Answer: B. Lysosomes. They help with cellular respiration as they clear out unwanted materials or waste.Photosynthesis is to chloroplasts as cellular respiration is to mitochondria. Chloroplasts are the part of a plant that contain chlorophyll and make...

hope this helps have a nice night❤️

Explanation:

Answer: The Occipital Lobe

Explanation:

Occipital stands for optics which are your eyes, It is where all visual senses are controlled and processed

Answer:

To measure blood pressure, your doctor uses an instrument call a sphygmomanometer, which is more often referred to as a blood pressure cuff. The cuff is wrapped around your upper arm and inflated to stop the flow of blood in your artery.

Explanation:

Hope it helps you

Answer:

No

Explanation:

Not even close

Answer:

It is the primary mechanism for evolution.

Explanation:

Answer:

the lithosphere, hydrosphere, biosphere, and atmosphere. The spheres are so closely connected that a change in one sphere often results in a change in one or more of the other spheres.

Explanation:

The way that the number of injuries per cat relate to the number of stories a cat falls is that:

High-rise syndrome describes the wounds that cats can get when they fall from a steep height, like an inside second-floor landing or balcony, out a window, down a fire escape, or when they fail to jump from a landing to a higher architectural element, like a ledge or window.

Cats may live comfortably in apartments and high-rise buildings, but we must make sure they have enough stimulation and playtime.

Therefore, According to Jim Usherwood of the Royal Veterinary College's structure and motion lab, stated that cats have long, flexible legs. "They have respectable muscle mass. Since they can jump rather well, the same muscles focus their efforts on slowing down rather than shattering bones."

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The Streptococcus pyogenes is the organism that is most likely to be sensitive to natural penicillin. Streptococcus pyogenes is the organism that is most likely to be sensitive to natural penicillin.

Natural penicillins such as penicillin G and V are effective against Streptococcus pyogenes, among other bacteria. They are ineffective against L forms and Helminths since penicillins target bacteria that have cell walls, and L forms are bacteria that lack cell walls while Helminths are multicellular worms and not bacteria.

Streptococcus pyogenes is a group A beta-hemolytic Streptococcus bacterium that can cause infections such as strep throat, skin infections, and scarlet fever, among others. Since Streptococcus pyogenes is one of the most common causes of strep throat, natural penicillin is often the medication of choice for treating strep throat since it is effective against Streptococcus pyogenes.

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The Frz filaments utilize a Type IV pili-dependent pathway to block movement.

This pathway involves the extension and retraction of the pili to create a physical barrier that prevents cells from moving past each other. Frizzy filaments, also known as intermediate filaments, are a component of the cytoskeleton that provide structural support to cells. They are not involved in blocking movement.

However, myxobacteria use a different type of filament called the Frz filaments to regulate their movement. Frz filaments are made up of a protein called AglZ, and they play a key role in the regulation of cellular movement by controlling the direction of gliding.

Frz filaments are part of a signaling pathway known as the Frz pathway, which involves a series of proteins that interact with the filament to control gliding direction. When Frz filaments are extended in one direction, they signal the cell to move in the opposite direction, allowing myxobacteria to coordinate their movement and travel together in groups.

Overall, the Frz pathway is an important mechanism for regulating the movement of myxobacteria and is essential for their ability to form complex multicellular structures like fruiting bodies.

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