some fish have a density slightly less than that of water and must exert a force, by swimming, to stay barely submerged.

narcotic are illegal drugs is a true statement.

Option A is correct

The term narcotic originally referred medically to any psychoactive compound with numbing or paralyzing properties

Chemicals with an intense physiological effect, such as drugs and psychoactive chemicals, modify brain function and momentarily affect perception, mood, and feelings.

Due to their detrimental effects on the body and human health, drugs are outlawed in the majority of nations around the world. Heroin and cocaine, which are deadly narcotics, cause the most severe addiction.

Drug dependence results in both physical and mental dependence.

Learn more about Drug at:

https://brainly.com/question/30392650

#SPJ1

Complete question:

. Narcotics are illegal drugs

A. O True

B. O False

Answer:

same

Explanation:

Asexual reproduction gives rise to two physically and genetically identical daughter cells. Thus, the genetic information remains the same.

In asexual reproduction, the daughter cells divide through the process of mitosis, which results in two daughter cells from one parent cell.

In mitosis, the chromosomes which are duplicated segregate into the two emerging cells around which then a nuclear membrane forms. In this case, there is no recombination by crossing-over or chiasmata formation that happens in the case of meiosis.

It is the recombination by crossing-over or chiasmata formation that results in varying genetic information.

Thus, as these processes do not happen in mitosis, genetic information remains the same.

Learn more about mitosis in:

https://brainly.com/question/31626745

#SPJ1

Answer:

c. They tend to rationalize their aggressive behavior

Explanation:

Individuals who involve aggressive sexual activity having high levels of traditionally masculine traits. These type of people experience sexual abuse, witnessing family violence in their childhood that leads to aggressive sexual activity. These people have unusually high levels of sexual interest. Use of illegal drugs, use daily alcohol use, and excessive time spent "hanging are the factors that are responsible for aggressive sexual activity.

Answer:

b. use of same plant homogenate throughout.

Explanation:

In an experiment, the controlled variable, also called the CONSTANT is the variable that is kept the same throughout the course of the experiment in order not to influence the result or outcome of the experiment.

In this question, a student performs a cell fractionation experiment to determine the shortest amount time of centrifugation (manipulated variable) at 2000xg that will yield the highest percentage of chloroplasts (responding variable) in the pellet fraction. In this experiment, the variable being controlled is same spinach plant homogenate used throughout.

To effectively activate the glutes and posterior chain during lower-body exercises, the feet must be properly positioned and grounded, typically maintaining a stable and balanced stance with the weight evenly distributed across the foot or engaging the heels for maximum engagement.

First, ensuring that the feet are grounded and evenly distributed on the floor or any supporting surface is essential. This helps maintain stability and allows for optimal force transfer through the lower body. Additionally, maintaining a neutral foot position with the weight evenly distributed across the heels and balls of the feet promotes proper alignment and engagement of the glutes.

For exercises like squats and deadlifts, maintaining a slightly turned-out foot position, with the toes pointing outward, can help recruit the glute muscles more effectively. This external rotation of the feet helps activate the gluteus maximus, which is a major muscle in the posterior chain.

It's important to note that individual variations and specific exercise requirements may influence foot positioning. Consulting with a qualified fitness professional or trainer can provide personalized guidance based on your goals and needs.

For more such answers on Glutes

https://brainly.com/question/17206865

#SPJ8

Answer:

b

Explanation:

they both produce new cells.

Answer:

heyyy

B is the answer

they produce new cell

Answer:

Daniel Lieberman can see millions of years of human evolution at a glance. The collection of skulls on his office shelves come from chimpanzees, long-extinct humans, and modern men and women. The hollow eye sockets, ancient teeth, and empty skulls pose the same question every day: What made us different from our archaic ancestors?

Explanation:

i hope this helps.

After Interaction How was mass conserved it is discussed below:

Steel Wool + Oxygen (Fire): chemical change

Egg + Heat: chemical change

Water + Heat: physical change.

Zinc + Hydrogen Chloride: chemical change

Sodium Hydroxide + Copper Sulfate: physical change

According to the rule of conservation of mass, no atoms are lost or created during a chemical process. Instead, the atoms combine in various ways to generate products. This is why the number of atoms in each element in a balanced symbol equation is the same on both sides of the equation.

The steel wool is a grayish color and has a rough surface. Oxygen is transparent  It looks like a powder, and like if it was rusted steel wool but then broken apart and turned into a powder  Well Iron oxide is 7 grams and steel wool combined is 7 grams so that the mass was conserved  Yes, this is a chemical change because the steel wool rusted and rust is a chemical change, so iron oxide is cause because if a physical change.

The egg has a yellow yolk in the middle while there is some type of liquid at the border of the yolk, but it is clear, the heat is hot but transparent  The egg turned into a delicious food called an omelet what was yolk staid as a liquid but got a tad harder, but the transparent border around it turned white  It was conserved because the eggshell was 4 grams and the fried egg is 41 grams  It is a chemical change because it results in the formation of new particles, and the chemical bonds break up and new ones are formed.

The water is a clear liquid, while the heat is very hot but transparent  The water turned into a type of oxygen -Water Vapor-   If 5 g of water becomes a gas it becomes 5 g of water vapor. The mass of the liquid water is simply transferred into the mass of the newly formed water vapor.  There was no chemical reaction because the water vapor can be turned back to water also it just changed from a liquid to a gas and did not change its composition. So, it is a physical change.

 Zinc: a white/silver metallic solid. Hydrogen chloride (dilute hydroelectric acid) a transparent, colorless liquid with a very low pH (acidic). Zinc "dissolved" in hydrogen chloride, while emitting a colorless gas.  The liquid remains a colorless liquid, possibly still having a low pH from the unused acid. The colorless gas collected in a test tube gives a popping sound when ignited with a burning wooden splint, so it is not air embedded in the zinc, nor dissolved in hydroelectric acid.  Well although the zinc chloride is 12 grams and not 15 the gas that was released was 3 grams and as we all know 3 + 12 is 15 so that the mass was conserved The production of a new substance (most probably hydrogen) from the reaction of the two reactants. When a few drops of the liquid product are evaporated on a watch glass, a white residue is left.  When a few drops of the liquid hydroelectric acid are evaporated on a watch glass, there is no residue. This proves that a new product (hydrogen gas), (white powder, zinc chloride) is produced instead of zinc being physically dissolved in hydroelectric acid. So, it is a chemical change.

 Sodium hydroxide is a turbid solution and copper sulfate is in form of bright blue crystals. When their solutions are mixed with each other, a pale blue precipitate of basic copper hydroxide & a solution of neutral salt sodium sulfate will be formed. The sodium hydroxide and the copper sulfate combined make a total of 67 grams and the product  is split because the sodium sulfate is 47 grams and the copper hydroxide is 20 grams but all together it is still 67 grams so you could say that the mass was conserved. The proof of the reaction is the appearance of pale blue precipitates of basic copper hydroxide & a solution of neutral salt sodium sulfate. So, it is physical change.

To know more about conservation of mass refer to:

https://brainly.com/question/27891057

#SPJ1

I hope my answer helped you! If you need more information or help, comment down below and I will be sure to respond if I am online. Have a wonderful rest of your day!

Answer:

False

Explanation:

it is called planktotrophs.

Answer:

larva, which is called a pluteus, has a small, wartlike bud that grows into the adult while the pluteus tissue disintegrates. In both examples it is as if the organism has two life histories, one built on the ruins of another.

Explanation:

hope this helps   :)

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, the control group of an experiment is the group in which every other group of the experiment is firstly compared with. This is because control groups are usually not administered with any form of treatment. Thus, the control group of the experiment/scenario referred to in the question will be the group that did not receive any form of treatment and was probably given water or placebo.

There are two alleles in a population that influence a specific attribute. Using the letters "A" for the dominant allele and "a" for the recessive allele. A allele frequency is 0.7, whereas frequency of allele is 0.09.

The frequency of the A allele is 0.7, or 70%, since homozygous dominant (AA) genotypes account for 70% of the population. Similarly, since homozygous recessive (aa) alleles make up 9% of the population, we can infer that the frequency of the recessive allele, a, is 0.09, or 9%.

The formula 2pq = frequency of heterozygotes, where p is the frequency of the A allele and q is the frequency of the an allele, can be used to determine the frequency of the heterozygous genotype (Aa).

We know that the frequency of heterozygotes is 0.21, or 21%.

Plugging in the known values:

2 * 0.7 * q = 0.21

Solving for q:

q = 0.15

So, the frequency of the A allele is 0.7, and the frequency of the a allele is 0.09.

For more such questions on Frequency of Allele

https://brainly.com/question/31063397

#SPJ11

    Nevermind! I don't know if you can delete your answer or not but I saw that mine was wrong. Sorry!

Answer:

food chain

Explanation:

The grass is the primary source of food in the food web. Rabbit, Mouse, and grasshopper are the animals that eat the grass. The grasshopper is eaten by a shrew and a mouse.

Answer:

it's carbon dioxide

Explanation:

I just looked it up

Parasites that cause human disease can be classified into different groups based on their characteristics and the diseases they cause. Here are some examples:

1. Protozoa:

  - Example: Plasmodium falciparum

  - Disease: Malaria

  - Location in Host: Plasmodium parasites reside and multiply within red blood cells.

  - Mode of Transmission: Mosquitoes (Anopheles species) transmit the parasite to humans through their bites.

2. Helminths (Worms):

  - Example: Ascaris lumbricoides

  - Disease: Ascariasis

  - Location in Host: Adult worms reside in the small intestine.

  - Mode of Transmission: Ingestion of eggs present in contaminated food, water, or soil.

3. Nematodes (Roundworms):

  - Example: Enterobius vermicularis

  - Disease: Enterobiasis (Pinworm infection)

  - Location in Host: Adult worms inhabit the large intestine, while females migrate to the perianal area to lay eggs.

  - Mode of Transmission: Ingestion of infective eggs, which are usually transferred from contaminated surfaces or through direct contact with an infected person.

4. Trematodes (Flukes):

  - Example: Schistosoma mansoni

  - Disease: Schistosomiasis (Bilharzia)

  - Location in Host: Adult worms reside in the blood vessels surrounding the intestines and liver.

  - Mode of Transmission: Contact with water bodies infested with freshwater snails that release the parasite larvae, which can penetrate the skin of humans.

5. Cestodes (Tapeworms):

  - Example: Taenia solium

  - Disease: Taeniasis (Tapeworm infection)

  - Location in Host: Adult worms reside in the human intestine, where they attach to the intestinal wall.

  - Mode of Transmission: Consumption of undercooked or raw contaminated meat containing the larvae or ingestion of food or water contaminated with eggs.

It's important to note that this list provides only a few examples, and there are numerous other parasites that can cause diseases in humans. The diseases mentioned here represent a fraction of the many parasitic infections that can occur, and each parasite has its unique characteristics, geographical distribution, and mode of transmission. Proper diagnosis, treatment, and preventive measures are essential for managing these parasitic infections.

For more such answers on Parasites

https://brainly.com/question/28489818

#SPJ8

Answer:

Its C

Explanation:

Checked it and got it right

Answer:

a

Explanation:

they drop leaves and almost hibernate for the winter, like some animals!

Answer:

I would say B cause when it's cold leafs fall off

To stop the transpiration of water, the stomata occasionally close.

Plants need to reduce transpiration to reduce water loss if they are to survive in a drought. Some plants that grow in arid environments have evolved to have smaller leaves and fewer stomatale sharp thorns as a result.

The leaves of these plants have a thick cuticle layer, which lessens transpirational water loss. Their extensive tap roots sink far into the soil to absorb water. Succulent plants store water in their stems, roots, leaves, and even fruits. Their waxy covering also prevents transpirational water loss.

To know more about dry environment visit:-

https://brainly.com/question/17406225

#SPJ1

Answer:Meristems are special regions in plants where active cell division takes place. They are responsible for the growth and development of the plant, including the production of new roots, stems, and leaves. Apical meristems are located at the tips of the roots and shoots and are responsible for primary growth, which leads to an increase in the length of the plant. Meristems are important because they allow plants to continually grow and adapt to their environment.

Tropisms are directional growth responses of plants to external stimuli. Two examples of tropisms are phototropism, which is the response to light, and gravitropism, which is the response to gravity. In phototropism, plants respond to light by bending towards the light source. In gravitropism, roots grow downwards in response to gravity, while stems grow upwards.

The main group of plant hormones is called "phytohormones" or "plant growth regulators." There are five main types of plant hormones: auxins, cytokinins, gibberellins, abscisic acid, and ethylene.

Plant hormones have a variety of functions, including controlling growth and development, regulating stress responses, and coordinating responses to external stimuli.

Auxin influences gene expression by promoting the expression of certain genes and suppressing the expression of others. Auxin can also activate or inhibit protein synthesis, leading to changes in cell growth and development.

Micropropagation is a technique used to rapidly propagate large numbers of plants from a small tissue sample. The technique involves growing the tissue in vitro, under sterile conditions, and providing the necessary nutrients and hormones for growth.

Micropropagation is done by taking a small tissue sample from a parent plant and placing it in a sterile environment. The sample is then grown in a nutrient-rich medium containing hormones that promote cell division and growth.

Micropropagation is done to quickly and efficiently produce large numbers of plants with desirable traits, such as disease resistance, improved growth, or higher yield.

External factors that can affect gene expression and flowering include light, temperature, humidity, and nutrient availability.

Phytochrome is a pigment that regulates plant responses to light. In short-day plants, phytochrome triggers flowering when the nights are longer than a critical length. In long-day plants, phytochrome triggers flowering when the nights are shorter than a critical length.

Pollination is the transfer of pollen from the male reproductive organ of a flower to the female reproductive organ of another flower.

Fertilization occurs when the sperm from the pollen grain fuses with the egg cell in the ovule, resulting in the formation of a zygote.

Seed dispersal is the process by which seeds are spread from the parent plant to new locations, allowing the plant to colonize new areas.

Flowering can be induced out of season by manipulating the light cycle or by treating the plant with chemicals that promote flowering.

Germination is the process by which a seed begins to grow into a new plant.

The conditions required for germination vary depending on the species, but typically include water, oxygen, and a suitable temperature.

Gibberellins are hormones that promote cell elongation and growth in plants. They are synthesized at the start of germination and are responsible for breaking down stored starches and releasing sugars to provide energy for growth.

Explanation:

Answer:

Answer is on the pic

Explanation:

I hope it's helpful!

A phospholipid has a hydrophilic head and a hydrophobic tail.

It will be called a phospholipid bilayer like that of the cell membrane when two layers of phospholipid interact with one another.

Answer:

This process is called metamorphism, meaning to "change in form". The result is a profound change in physical properties and chemistry of the stone. The original rock, known as the protolith, transforms into other mineral types or other forms of the same minerals, by recrystallization

Answer:

Drowning: It is the suffocation that takes place due to submersion or immersion of the mouth and nose of an individual in a liquid or filling liquid in the lungs of the person. It caused death if an individual drowns completely.

Altitude sickness: physical discomfort at high altitude due to low oxygen pressure that causes hyperventilation, nausea, shortness of oxygen, concession. It is also known as mountain sickness.

Burn: It is an injury of skin or tissue that occurs due to heat, cold, chemical or radiation. Most of the time the burn takes place by heat contact to skin and cause different degree burn depends on the intensity of hotness or fire.

Electric shock: Electric shock is the event that occurs when an electric current passes through the body of an individual that can be mild to severe. It can burn the internal and external organs of an individual.

Answer:

1. The mitochondria are responsible for producing energy in the form of ATP through cellular respiration.

2. Prokaryotic cells are smaller and do not have a nucleus or membrane-bound organelles, while eukaryotic cells are larger and have a nucleus and membrane-bound organelles.

3. Ribosomes are responsible for synthesizing proteins in the cell.

4. The endoplasmic reticulum is responsible for protein and lipid synthesis and transport within the cell.

5. Plant cells have cell walls, chloroplasts, and larger vacuoles, while animal cells do not have cell walls, chloroplasts, or large vacuoles.

6. The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for transport within the cell or for secretion outside the cell.

7. Lysosomes are responsible for breaking down and digesting waste materials and cellular debris within the cell.

8. The cytoskeleton is responsible for maintaining cell shape, providing support and structure, and facilitating cell movement and division.

9. Passive transport does not require energy and involves the movement of molecules from an area of high concentration to an area of low concentration, while active transport requires energy and involves the movement of molecules from an area of low concentration to an area of high concentration.

10. Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of high water concentration to an area of low water concentration.

I hope these answers are helpful! Let me know if you have any more questions.

Answer:

1. The function of mitochondria in a cell is to produce energy in the form of ATP through cellular respiration. Mitochondria are also involved in other cellular processes such as apoptosis (programmed cell death), calcium signaling, and lipid metabolism.

2. Prokaryotic cells are smaller and simpler in structure than eukaryotic cells. Prokaryotic cells lack a nucleus and other membrane-bound organelles, while eukaryotic cells have a nucleus and various membrane-bound organelles.

3. Ribosomes are responsible for protein synthesis in a cell. They read the genetic code stored in messenger RNA (mRNA) and use it as a template to link amino acids together in the correct order to form a protein chain.

4. The endoplasmic reticulum (ER) is involved in protein synthesis, folding, and modification. It is also involved in lipid synthesis, calcium storage, and detoxification of drugs and toxins.

5. Plant cells have a cell wall, chloroplasts, and a large central vacuole, while animal cells lack these structures. Additionally, plant cells are typically larger than animal cells.

6. The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for transport to their final destinations. It consists of a series of flattened sacs called cisternae.

7. Lysosomes are involved in the breakdown of cellular waste and debris, as well as the degradation of damaged or unneeded cellular components. They contain enzymes that can break down various biomolecules such as proteins, lipids, and nucleic acids.

8. The cytoskeleton is a network of protein fibers that provides structural support to the cell, helps maintain cell shape, and enables cell movement and division. It is made up of three main types of fibers: microfilaments, intermediate filaments, and microtubules.

9. Passive transport is the movement of molecules across a cell membrane without the input of energy, while active transport requires the input of energy to move molecules against their concentration gradient. Passive transport includes diffusion, osmosis, and facilitated diffusion, while active transport includes primary and secondary active transport.

10. Osmosis is the diffusion of water across a selectively permeable membrane from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration). It is a type of passive transport and is important for maintaining the water balance in cells.

Hope this helps!

Unless an unbalanced force is acting on an object, Newton's first law states that it will stay at rest or move in a straight line at a constant speed.

Newton's first law states that any object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the application of an external force. Inertia is the propensity to resist changes when things are moving.

According to Newton's First Law of Physics, moving objects continue to move in the same direction unless they are affected by an imbalanced force. Things moving include among others, the US dollar, rates, inflation, and oil.

To know more about Newton's first law visit:-

https://brainly.com/question/29775827

#SPJ1

1. Develop a hypothesis: Sienna hypothesized that plants move toward light. 2. Set up the experiment: Sienna placed one plant near a window and another in a dark room with a small opening that allowed light to come through. 3. Observe and record: Sienna checked the plants every few days and recorded the direction of their growth. 4. Analyze the data: Sienna examined the recorded data to determine the direction of growth for each plant over the six-week period. 5. Draw conclusions: Based on the data analysis, Sienna drew conclusions about whether the plants moved toward the available light source or not.

1. Sienna developed a hypothesis that plants move toward light. This is the initial step where she formulates her prediction based on prior knowledge or observations.

2. Sienna set up the experiment by placing one plant near a window and another in a dark room with a small opening that allowed light to come through. This step ensures that there are two distinct conditions to compare the plant growth.

3. Every few days, Sienna checked the plants and recorded the direction of their growth. This step involves making regular observations and documenting the changes in plant growth over time.

4. After six weeks, Sienna gathered all the recorded data, which included the direction of growth for each plant. This data would serve as the basis for further analysis.

5. Sienna analyzed the data by examining the recorded observations. She compared the direction of growth for each plant and looked for patterns or differences between the plant near the window and the one in the dark room.

6. Based on the data analysis, Sienna drew conclusions about whether the plants moved toward the available light source or not. This step involved interpreting the data and determining if the hypothesis was supported or refuted by the evidence gathered from the experiment.

By following this sequence of steps, Sienna was able to study movement in plants and draw conclusions about their response to light.

For more such questions on hypothesis, click on:

https://brainly.com/question/1511064

#SPJ8

Answer:

DNA is the primary genetic material contained within your cells and in nearly all organisms. It's used to create proteins during protein synthesis, which is a multi-step process that takes the coded message of DNA and converts it into a usable protein molecule.

Explanation: