Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Strands of hair originate in an epidermal penetration of the dermis called the hair follicle. The hair shaft is the part of the hair not anchored to the follicle, and much of this is exposed at the skin’s surface. The rest of the hair, which is anchored in the follicle, lies below the surface of the skin and is referred to as the hair root. The hair root ends deep in the dermis at the hair bulb, and includes a layer of mitotically active basal cells called the hair matrix. The hair bulb surrounds the hair papilla, which is made of connective tissue and contains blood capillaries and nerve endings from the dermis.
The part of the hair that extends from the hair bulb to the hair shaft is the hair root, which is the only living part of the hair, and the hair shaft is the visible dead part comprised of dead keratinocytes.
Explanation:The part of the hair that extends from the hair bulb to the hair shaft is known as the hair root. The hair root is located within the hair follicle and is the only living part of the hair. The hair shaft, in contrast, is the portion of the hair that becomes visible above the skin's surface and consists of dead keratinocytes.
As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface, where it is visible as the part of the hair we see and style. The hair shaft comprises three layers: the cuticle, the cortex, and the medulla. This growth process and the layered structure contribute to the unique features of hair, such as its texture and the fact that it can be cut without sensation or damage to the structure.
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what gel like substance between the cell membrane and the nucleus
The process of translation is responsible for producing which type of molecule?
he entire process is called gene expression. In translation, messenger RNA (mRNA) is decoded in a ribosome to produce a specific amino acid chain, or polypeptide. The polypeptide later folds into an active protein and performs its functions in the cell.
Proteins
Explanation:The process of translation is responsible for protein formation. The entire process is called gene expression. In translation, messenger RNA (mRNA) is decoded in a ribosome to produce a specific amino acid chain, or polypeptide. The polypeptide later folds into an active protein and performs its functions in the cell.
Why aren’t organelles considered to be basic parts of a cell
Core organelles are found in virtually all eukaryotic cells. They carry out essential functions that are necessary for the survival of cells – harvesting energy, making new proteins, getting rid of waste and so on.
Organelles are complex, specialized structures within eukaryotic cells that perform specific tasks, similar to how organs function in an organism. They are not considered basic parts of a cell because cells can function with a basic structure of a membrane, cytoplasm, and DNA, without the presence of these specialized organelles.
Explanation:The term 'organelle' refers to the various structures within cells that perform specialized tasks, similar to how organs have distinct functions within the human body. Hence, organelles, such as the nucleus, mitochondria, lysosomes, chloroplasts, endoplasmic reticulum, Golgi apparatus, and others, are fundamental components of eukaryotic cells, not basic parts.
Eukaryotic cells, which include all animal and plant cells, have membrane-bound organelles and a nucleus enclosed by a membrane, often referred to as a 'true nucleus'. Within this nucleus, the cell's DNA is stored.
However, not all organelles are found in all cell types. For example, lysosomes, known as the cell's 'garbage disposal', are more common in animal cells while in plant cells, a similar process occurs in vacuoles. Further, plant cells have unique organelles such as chloroplasts and a large central vacuole.
In the perspective of the cell theory, the basic parts of a cell would include the cell membrane or plasma membrane, cytoplasm, and genetic material in the form of DNA.
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in an ecosystem, organisms are dependent on each other for survival. Small fish eat plankton. In the fish, chemical from plankton is converted in to A.) oxygenated energy B.) radiant energy C.) mechanical energy
Bacteria break down the dead bodies of fish to release energy, which is then absorbed by other organisms in the ecosystem. This flow of energy is an example of the A.) loss of energy B.) creation of energy C.) conservation of energy
First is mechanical energy
Passed test
HELP PLEASE What conditions would be worse if the greenhouse gases would permanently decrease?(Examples please)
A permanent decrease in greenhouse gases could trigger global cooling, potentially leading to severe winters, disrupted agriculture, and ecosystem changes akin to an ice age, underscoring the importance of maintaining a balanced level of these gases in the atmosphere.
Explanation:If greenhouse gases were to permanently decrease, the Earth would experience conditions opposite to global warming, which could lead to a new set of environmental challenges. For example, a decrease in greenhouse gases could potentially initiate a global cooling effect. Greenhouse gases, including carbon dioxide, methane, nitrous oxide, and water vapor, play a crucial role in maintaining the Earth's temperature by trapping heat in the atmosphere. Without adequate greenhouse gas levels, the planet could cool significantly, potentially leading to longer and more severe winters, disrupted agriculture due to shorter growing seasons, and a decline in global food production capacity.
In essence, greenhouse gases function like the glass of a greenhouse, which allows sunlight in and keeps the heat from escaping too rapidly. In their absence, Earth could face conditions akin to an ice age, where many species may struggle to survive, and ecosystems could be drastically altered. Thus, while the current concern is largely focused on the negative impacts of excess greenhouse gases due to human activities such as deforestation and the burning of fossil fuels, it's clear that a balance of these gases is essential for a stable climate conducive to life as we know it.
What are two characteristics of Technetium and two characteristics of Tungsten?
Two characteristics of Technetium:
1) Technetium is a rare, silver-gray metal that tarnishes slowly in moist air.
2)In powder form, it burns in oxygen to form the heptoxide (Tc2O7)
Two characteristics of Tungsten:
1)Tungsten is a very hard, dense, silvery-white.
2) Tungsten is lustrous metal that tarnishes in air, forming a protective oxide coating.
2. What makes biology different from the other sciences?
Biology is a general area of science that deals with understanding living things and the processes of life in general.
(basically it is about a different kind of science ex. chemistry is science on elements)
hope this helps :)
Our bodies need _____ in order for the cells to use the blood glucose
Im pretty sure our body needs beta cells.
Please help me with 9 and 10 please
9) Sometimes people r persuaded
10) Keep doing test
List and explain nonspecific immune defenses in plants found in a chaparral
environment
DEFENSE AGAINST HERBIVORS
DEFENSE AGAINST PATHOGENS
what am I suppose to do exactly help please
Plants’ nonspecific immune responses includes cell-surface receptors (pattern recognition proteins) which allow them to identify certain patterns characteristic for pathogens. Activated receptors trigger the production of chemical signals that may initiate both local and systemic defense responses. Sometimes when a plant is affected by infection, it triggers rapid localized programmed cell death to stop the infection further. When it comes to defense form the herbivores, plants have physical barriers (plant cell walls and their extensions), some antibiotic compounds (phytoalexins), and even enzymes that can defend them.
Two tectonic plates of different densities collide. Which of the following could form at the plate boundary? (Multiple answers)
1. island
2.mid-ocean ridge
3.rift valley
4.trench
5.volcano
The answer is Trench and Volcano, because when two plates of different densities collide. When an oceanic plate and a continental plate collide.
Trench and volcano could form at the plate boundary.
When two tectonic plates of different densities collide due to convection currents that are produced by the heat within the asthenosphere, a plate boundary (convergent) is formed. Deep trenches are usually formed where one of the plates slides beneath each other (a process called subduction). Trenches are elongated and often narrow cavity. The plate which is below will move down into the mantle, and there will be release of fluids from the rock which will partially melt the mantle. The molten rock will rise and may erupt violently to produce volcanoes.
Other features that could also form at the plate boundaries apart from trench and volcanoes are submarine mountain ranges and fault lines.
Name three unifying themes found in biology
cell structure, evolution, homeostasis
list the 2 subgroups and 3 examples of food from esch group
Vegetables and legumes/beans.
Fruit.
Grain (cereal) foods, mostly wholegrain and/or high cereal fibre varieties.
Lean meats and poultry, fish, eggs, tofu, nuts and seeds and legumes/beans.
Milk, yoghurt cheese and/or alternatives, mostly reduced fat.
Which equation best represents the process of photosynthesis?
1.6CO 2 + 12H 2 O → light + C 6 H 12 O 6 + 6O 2 + 6H 2 O
2.6CO 2 + 12H 2 O + light → C 6 H 12 O 6 + 6O 2 + 6H 2 O
3.C 6 H 12 O 6 + 6O 2 + 6H 2 O → light + 6CO 2 + 12H 2 O
4.C 6 H 12 O 6 + 6O 2 + 6H 2 O + light → 6CO 2 + 12H 2 O
It would be first one.
______________ fats, such as olive oil and sesame oil, are produced in plants and are liquid at room temperature.
A) Hydrogenated
B) Oxidized
C) Polysaturated
D) Polyunsaturated
__________________________/
The Correct answer is- /
D) Polyunsaturated. /
__________________________/
Which of the following roles does an enzyme play when the body produces sucrose into glucose and fructose?
A: An enzyme decreases the bodies need for sucrose
B: An enzyme increases the amount of sucrose available
C: An enzyme increases the rate at which the sucrose breaks down
D: An enzyme decreases the amount of fructose and glucose product available
the answer is C. an enzyme increases the rate at which the sucrose breaks down. also i think your pic is cute
Final answer:
In the production of glucose and fructose from sucrose, an enzyme, specifically sucrase, increases the rate of sucrose breakdown by reducing the activation energy required for the reaction.
Explanation:
When the body produces sucrose into glucose and fructose, an enzyme plays a crucial role in the hydrolysis process. The correct answer to the question is C: An enzyme increases the rate at which the sucrose breaks down. In the small intestine, sucrose is hydrolyzed to form glucose and fructose in a reaction catalyzed by sucrase. This specific enzyme binds to the substrate, sucrose, and catalyzes its breakdown. Enzymes like sucrase work by reducing the activation energy needed for the reaction to proceed, significantly speeding up the reaction. Without sucrase, the hydrolysis of sucrose is significantly slower.
Explain how mitosis differs from binary fission
Which property remains unaffected during the rock cycle?
A)
Texture of the rock
B)
Mass of the material
C)
Structure of the rock
D)
Composition of the minerals
4)
Which of these statements would support the claim that digitized signals are a more reliable way to transmit information?
A)
Analog signals often pick up extraneous information.
B)
Analog signals can be recorded using magnetic devices.
C)
Digitized signals can be stored on small computerize devices.
D)
Digitized signals do not lose information even as they get weaker.
5)
You have a small piece of iron at 75 °C and place it into a large container of water at 25 °C. Which of these best explains what will occur over time?
A)
The iron will cause the water to boil and turn to steam.
B)
The iron will take the heat from the water and get hotter.
C)
The water will cool significantly due to its colder temperature.
D)
Some heat from the iron will move to the water causing both to change temperatures.
During the water cycle, the sun's energy evaporates water from the surface of Earth. This water returns to Earth as some form of
precipitation. i think.
The image shows EKGs Of a person. With normal heart waves and of a person having tachycardia.Based on the image wat condition is tachycardia
Answer:
its b
Explanation:
The building of proteins, or translation, occurs on which number labeled organelle?
endoplasmic reticulum (er)
The answer is to the question you are asking is A) 1.
Based on the simulation, write a definition for the term "balanced chemical equation?
A chemical equation is balanced, when there are the same amount of atoms in both sides of the equation. Here are some examples of non-balanced and balanced equations:
[tex]O_{4} + CO_{2} \neq O_{3} +CO_{2}[/tex] → non-balanced
[tex]H_{8} + C_{2} = 2H_{4} + C_{2}[/tex] → balanced
Hope it helped,
BioTeacher101
Cell graphic organizer
Hello there! Unfortunately, your post does not include a question, and therefore we are unable to help you:( You can add attachments to a post by clicking on the paperclip if necessary:)
Cell Graphic Organizer: Cells have three main parts – the cell membrane, which encloses the cell; the cytoplasm, a jelly-like substance where organelles are suspended; and the nucleus, which houses genetic material.
A cell is the fundamental unit of life, and its structure can be comprehensively understood through a graphic organizer. At its core, a cell consists of three essential components. Firstly, the cell membrane forms a protective boundary, enveloping the cell and regulating the passage of substances in and out. Secondly, the cytoplasm, a gel-like substance filling the cell's interior, serves as a medium for the organelles—tiny structures that perform specific functions—to carry out their activities.
Finally, the nucleus, often referred to as the cell's control center, houses genetic material in the form of DNA, dictating the cell's characteristics and functions. This graphic representation provides a visual framework for grasping the intricate yet organized architecture of a cell, emphasizing the interconnected roles these structures play in maintaining life processes.
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the number of individuals of a species per unit area is known as?
population or population density
why should the amount of carbon in the atmosphere stay the same?
Photosynthesis and respiration should balance each other out.
Cellular respiration and photosynthesis are both dependent on each other, thus creating a cycle. Respiration creates carbon from oxygen, while photosynthesis takes that carbon created and reuses it to make oxygen. If they are creating/using carbon at the exact same rate, everything should stay the same. I think that's the answer you were looking for, anyways. Hope I helped :)
What is the term for the religious movement that asked Americans to emotionally and personally connect to their faith?
The term for the religious movement that asked Americans to emotionally and personally connect to their faith was called The Great Awakening.
Hope this help!! :)
I believe that the answer you are looking for is the Great Awakening. It was the most important event in American religion during the eighteenth century and was a series of emotional religious revivals that spread across the American colonies in the late 1730s and 1740s. I hope this helps!
What is one way that calcitonin and parathyroid hormone maintain homeostasis?
Calcitonin is ahormone that is poduced in humans by the parafollicular cells (other wise known as c-cells) of the thyroid gland. Therefore, inhibition of the osteoclasts directly reuces the amount the amount of calcium released into the human blood. This is just a simple explanation so now all you have to do is understand what will happen when you combine calcitonin and parathyroid.
Parathyroid hormone is secreted from parathyroid glands. Parathyroid hormone increases calcium levels in the blood when they are too low. Whereas as calcitonin is a hormone secreted by the parafollicular cells of the thyroid gland. It works antagonistically to the parathyroid hormone. This means that calcitonin reduces calcium levels in the blood when it is high. It is, therefore, the secretion of both calcitonin and parathyroid hormone is determined by the level of calcium in the blood.
Which of these factors would most likely strengthen the effectiveness of CITES?
Electricity would strengthen anything
Funding for on-the-ground enforcement
stimulus - touch receptors - ___ - ___ - ___ - ___ - response
Stimulus ➡ Touch Receptor ➡ Sensory Nerve cell ➡ Relay nerve cell ➡ Muscle ➡Response
ExplanationWhen a body touches a hot or very cold body, a stimulus is generated.Touch receptors convert this stimulus into a nerve impulse and transmit it to the sensory neurons located in the spinal cord (CNS) via peripheral nerves.The impulse travels across a synapse to relay neuronsRelay neuron passes impulse across the second synapse to motor neurons.Now impulse travels along motor neuron to reach the effector (muscle)Muscle contract and hand is withdrawn quickly (Response)Which of the following was a major source of atmospheric oxygen?
Answer: It is photosynthesis!
The major source of atmospheric oxygen is photosynthesis carried out by plants, algae, and some bacteria where they use sunlight, water, and carbon dioxide to produce glucose and oxygen. This oxygen is released into the atmosphere, enriching it with this vital gas. The oxygen-rich atmosphere we have now is largely the result of billions of years of photosynthetic activity, particularly by ancient cyanobacteria.
Explanation:The major source of atmospheric oxygen is photosynthesis carried out by plants, algae, and some bacteria. During photosynthesis, these organisms convert carbon dioxide and water into glucose and oxygen.
This process occurs in the chloroplasts of plant cells where chlorophyll captures sunlight and converts it into energy. The oxygen produced during photosynthesis is then released into the atmosphere, contributing to the oxygen content of our planet's atmosphere.
Therefore, photosynthesis is the main process responsible for the presence of oxygen in the Earth's atmosphere.
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