in addition to feeding on invertebrates, the roach (fish) will also eat ______
A. midges
B. small fish
C. algae
D. trout.

The thirteen parts of a particular animal cell are endoplasmic reticulum, nucleolus, mitochondria, vacuoles, cytoplasm, ribosomes, nuclear membrane, cell membrane, cytoskeleton, vesicles, centrioles, Golgi apparatus and nucleus.

The cells which are present in animals are known as the animal cell. The animal cells contain a plasma membrane but they do not contain a cell wall like in the case of plants. They also contain a number of membrane bound organelles and a well defined nucleus. They have an endoplasmic reticulum, mitochondria, nucleolus, centrioles, Golgi apparatus.

They also have vesicles and a cytoskeleton which gives the cell its shape and also aids in the movement of the cell.

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Answer:

Explanation:

d

Answer:

B. Gases are heated

Explanation:

Answer:

solids are melted

Explanation:

pls brainliestt

Answer: A.) Yes, as reactant A.

Explanation: I hope this helps !!

True. The medulla oblongata contains a respiratory center that plays a crucial role in controlling the rate and depth of breathing.

The medulla oblongata, located at the base of the brainstem, is responsible for regulating various vital functions, including breathing. Within the medulla oblongata, there is a specific region known as the respiratory center, which is involved in controlling the rate and depth of breathing.

The respiratory center consists of a network of neurons that receive sensory input from chemoreceptors, which detect changes in blood oxygen and carbon dioxide levels, as well as other respiratory-related receptors. Based on these inputs, the respiratory center adjusts the activity of the respiratory muscles, such as the diaphragm and intercostal muscles, to regulate the breathing pattern.

The respiratory center in the medulla oblongata plays a crucial role in maintaining the appropriate levels of oxygen and carbon dioxide in the body. It responds to changes in blood gas concentrations to initiate the necessary adjustments in breathing rate and depth, ensuring adequate gas exchange in the lungs and supporting overall respiratory function.

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Answer:

Squirrels cannot live where it gets too hot or too cold. Physical factors such as temperature, availability of water, or mineral nutrients can limit where particular species can live.

The inheritance of earlobe attachment is a classic example of simple dominant-recessive inheritance in humans.

Attached earlobes are caused by a dominant gene (represented by "A"), while unattached earlobes are caused by a recessive gene (represented by "a").

When a person inherits one dominant gene (A) and one recessive gene (a), the dominant gene is expressed, and the person will have attached earlobes. When a person inherits two recessive genes (aa), the recessive gene is expressed, and the person will have unattached earlobes.

The likelihood of inheriting attached or unattached earlobes depends on the genes passed down from the parents. If both parents have attached earlobes, they can only pass on the dominant gene (A), so all of their offspring will have attached earlobes. If one parent has attached earlobes and one parent has unattached earlobes, their offspring will have a 50% chance of having attached earlobes and a 50% chance of having unattached earlobes.

Overall, the inheritance of earlobe attachment is a simple example of dominant-recessive inheritance in humans, and it provides a basic understanding of how genes are passed from generation to generation.

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Unattached earlobes is dominant to attached earlobes. Two parents, both with unattached earlobes, had a child with attached earlobes. What are the chances that their next child will have attached earlobes?

The group of glycoproteins found on the cell's surface that allow the body to recognize the cell as one of its own are called major histocompatibility complex (MHC) proteins.

Major histocompatibility complex (MHC) proteins play a crucial role in the immune system's recognition of "self" and "non-self" cells. They are glycoproteins found on the surface of nearly all nucleated cells in the body. MHC proteins are encoded by a highly polymorphic set of genes, which results in a diverse range of MHC molecules within a population. There are two main classes of MHC proteins: MHC class I and MHC class II.

MHC class I proteins are present on the surface of all nucleated cells and display fragments of intracellular proteins. These fragments, known as antigens, are derived from proteins synthesized within the cell.

MHC class I molecules interact with CD8+ T cells, which are responsible for recognizing and eliminating cells that present foreign antigens, such as infected or cancerous cells. By presenting self-derived antigens, MHC class I proteins help the immune system distinguish "self" cells from "non-self" cells.

MHC class II proteins, on the other hand, are predominantly found on the surface of antigen-presenting cells, including macrophages, dendritic cells, and B cells. They present antigens derived from extracellular sources, such as pathogens, to CD4+ T cells. This interaction helps activate the adaptive immune response and coordinates the immune system's response against invading pathogens.

In summary, MHC proteins, specifically MHC class I and MHC class II, are the group of glycoproteins found on the cell's surface that allow the body to recognize the cell as one of its own. Their presentation of self-derived antigens is crucial for immune tolerance and the proper functioning of the immune system.

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Answer:

Sources of study of interior of earth:

Deep ocean drilling reveals humongous information through analysis of materials collected at different depth.

Volcanic eruption deliver information by the means of molten magma that comes out of Earth’s interiors.

Surface rocks are readily available earth material.

Answer:

core samples

earthquakes

s-waves

rock composition

Explanation:

The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.

A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.

Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.

Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.

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the doge says i speak  all langos try me

Paramecium and Spirogyra have the same shape and parts.

In continuation:

Lastly, Both Paramecium and Spirogyra have a unique shape. Paramecium is like a long slipper while Spirogyra looks like a spiral thread.

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Answer:

Due to no resistance.

Explanation:

Most mosquitoes perish when DDT chemical was sprayed the first time because these mosquitoes are vulnerable to the DDT chemical and there is no resistance present in their body against this chemical. DDT chemical is an insecticide which is used against insects or pests that causes damage to human, organisms and crops. DDT was first synthesized in 1874 by the Austrian chemist named Othmar Zeidler.

i'm not sure what the question is but..

they're fungi/ decomposers

it ate up all the dead bark for the tree they had reproduce

i hope that help i'm still learning the subject

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don't forget to make brainalist and keep smiling

Answer:

Change is the only thing that is constant in this world. Obviously, more discoveries would be made in the nearest future that will give their thought about science a new direction.

Explanation:

Answer:

○_○

Explanation:

humans has body parts while coffee beans dosent

Answer:

Explanation:I need to get some answers too

Parental strand is an original DNA strand that is copied during the replication process. On the other hand, Daughter strands are the newly synthesized DNA strands.

1. Difference between a parental (old) strand and a daughter (new) strand in a replicated DNA molecule :

Parental strand is an original DNA strand that is copied during the replication process. On the other hand, Daughter strands are the newly synthesized DNA strands.The parental (old) strand is retained throughout the replication process as a template to guide the synthesis of a complementary strand of DNA. In contrast, the daughter (new) strand is the new DNA strand synthesized during the replication process.

2. How each of the two daughter molecules end up with one parent and one daughter strand of DNA at the end of the replication process?

The process of DNA replication is semi-conservative, meaning that each of the daughter DNA molecules produced contains one strand of the parental DNA molecule and one newly synthesized daughter strand. When DNA replication takes place, the two complementary strands of DNA separate, and each strand acts as a template for the synthesis of a new strand. The newly synthesized strand of DNA contains nucleotides that are complementary to the nucleotides of the parental strand.The result of this semi-conservative replication process is that each of the two daughter DNA molecules produced at the end of replication has one strand of parental DNA and one newly synthesized daughter strand.

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To ensure that the list stays stuck, just think of something along the lines of “Mercury Met Venus Every Night Until Saturn Jumped.” Essentially, this indicates that the size of the planets in order from smallest to largest is Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter.

Answer:

To ensure that the list stays stuck, just think of something along the lines of “Mercury Met Venus Every Night Until Saturn Jumped.” Essentially, this indicates that the size of the planets in order from smallest to largest is Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter.

Explanation:

Answer:

didn't you already have a answer.

Explanation:

The alcohol keep on boiling even after the flame was turned down, Alcohol has a lower boiling point than water.

The boiling point is the temperature at which the substance passes from a liquid to a gaseous state.

Thus, Alcohol has a lower boiling point than water.

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I know that I'm late but, the correct answer is:

The Earth's outer crust (the lithosphere) is composed of a series of tectonic plates that move on a hot flowing mantle layer called the asthenosphere. Heat within the asthenosphere creates convection currents that cause tectonic plates to move several centimeters per year relative to each other.

Each step taken by a myosin head along an actin filament results in the consumption of all energy made available by an ATP to ADP + Pi reaction (0.06 aJ). The author has also stated that steps are taken about four times per second, meaning that each contraction lasts for just 0.25 s.

Final power for the concentrations of muscles:It is important to note that power is equal to work done over time. The work done is the force exerted on the object multiplied by the distance moved, while time is the duration of the process.

Therefore, we can calculate the power for muscle concentrations by finding the work done per contraction and dividing it by the time for each contraction.

The work done can be calculated as follows:Work done = Force x Distance movedThe force is the tension created by the muscle during contraction while the distance is the shortening distance of the muscle during a single contraction.The force generated during muscle contraction varies depending on the type of muscle and the load being lifted. Therefore, it is difficult to determine the force without the relevant details of the muscle.

However, let us assume that the muscle generates a force of F Newtons during contraction while shortening by a distance of d meters. Therefore, the work done by the muscle during a single contraction is given by:Work done = F x dThe time for each contraction is 0.25 s.

Therefore, the power is given by:

Power = Work done / Time taken

Therefore:Power = (F x d) / 0.25As such, we are unable to calculate the final power for the concentrations of muscles as the relevant details for the force generated by the muscle during contraction and the distance shortened is not given.

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Answer:

option (C)

Explanation:

In both plants and animals, RNA contains:

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

A disease is a condition or problem that interferes with the body's natural functions and causes discomfort (either physical or mental), illness, or even death. Numerous factors, such as genetics, the environment, infections, lifestyle decisions, and others, can contribute to the development of diseases. Let's discuss 3 disease

1. Diabetes: Diabetes is a chronic metabolic disorder characterized by high blood sugar levels. It occurs when the body either doesn't produce enough insulin (Type 1) or becomes resistant to insulin's effects (Type 2). The main cause of Type 1 diabetes is an autoimmune reaction, while Type 2 diabetes is caused by genetic factors, lifestyle, and environmental factors such as obesity and lack of physical activity.

2. Influenza (flu): Influenza is a contagious respiratory illness caused by the influenza virus. It spreads through the air via droplets when infected people cough, sneeze, or talk. The flu can cause mild to severe symptoms, including fever, cough, sore throat, body aches, and fatigue. Vaccination is the best way to prevent influenza.

3. Asthma: Asthma is a chronic respiratory disease that causes inflammation and narrowing of the airways, leading to difficulty in breathing. It is often triggered by allergens, environmental factors, or physical activity. The primary cause of asthma is a combination of genetic predisposition and environmental factors such as exposure to allergens or irritants, infections, and air pollution.

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Polymerization.

If you forget what Polymerization is, here: process of when reacting monomer-molecules together in a chemical reaction to make polymer chains or three dimensional networks. There are a lot  of forms for polymerization and different systems exist to categorize them.

Heavy metals can be harmful to human health even at trace levels.

Heavy metals such as lead, mercury, cadmium, and arsenic are known to be toxic and can cause a range of health problems in humans. Exposure to these metals, even in small amounts, can lead to neurological, developmental, and reproductive issues. They can also accumulate in the body over time and cause long-term damage.

Therefore, the statement that heavy metals are all harmful to human health even at trace levels is true. It is important to limit exposure to these metals through proper handling and disposal of hazardous materials and by avoiding contaminated food and water sources.

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