the pigment-producing cells of the epidermis are located in which layer?

Answers

Answer 1

Answer:

Basal Layer

Explanation:

Melanocytes are found in the basal layer of the epidermis. These cells produce a pigment called melanin, which is responsible for different skin color. Melanin is packaged into small parcels (or melanosomes), which are then transferred to keratinocytes.


Related Questions

Why do volcanoes usually form at plate boundaries?

Answers

Answer:

When plates move away from each other at divergent plate boundaries, interesting things happen. For example, when plates move apart, molten rock from the Earth's core ascends and forms new crust. ... This molten rock can rise up to the surface, forming a volcano, and causing volcanic eruptions.

qual é o resultado da meiose ?

Answers

Answer:

El proceso da como resultado cuatro células hijas que son haploides, lo que significa que contienen la mitad del número de cromosomas de la célula madre diploide. La meiosis tiene similitudes y diferencias con la mitosis, que es un proceso de división celular en el que una célula madre produce dos células hijas idénticas. Espanol

English: The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.

Explanation:



pls need an answers for these blanks


bio


Answers

Answer:

Ultraviolet, GMO protein

which of these features is found in a lumbar vertebra?

Answers

Answer:

Distinguishing features of the lumbar vertebrae include a thick and stout vertebral body, a blunt, quadrilateral spinous process for the attachment of strong lumbar muscles, and articular processes that are oriented differently than those found on the other vertebrae.

Explanation:

menciona las 10 razones por las cuales la educación en salud es necesaria​

Answers

Answer: sie

Explanation:

what can the nucleus enzyme break down?

Answers

Answer:

when the nucleus is removed from the cell the cell can no longer function. the nucleus contains the blueprint (DNA) for all the cells operations and without it the organelles cant do their jobs.

Explanation:

Help asap!!! will give brainliest

Answers

Answer:

Less ATP is generated during anaerobic respiration than during aerobic respiration.

Explanation:

please help for biology

Answers

Answer:

the first one

Explanation:

what are the two main cells found in the epidermis

Answers

The answer is Keratinocytes and Melanocytes.

please mark brainliest

Which one of the following do allplants and animals need to survive?A.FoodB.DarknessC.LocomotionD.Light

Answers

Answer:

I believe D. Light

Explanation:

Well, light is the main source of food for plants along with the addition of carbon dioxide.

Answer:

a) food

Explanation:

IT is because animals and plants dont need darkness cause it is of no use to them. locomotion is only there in animals so it wont benefit both. and for light animals dont need it while plants do. so the only option that benefits both is option a food.

PLS MARK BRAINLIEST :D

What role do the macromolecules starch and simple sugars play in fruit storage and ripening?

Answers

The role that is played by macromolecules such as starch and simple sugars in fruit storage and ripening is that the unripe bananas store starch in their chlorophyll.

Macromolecules refer to very large molecules. The four main classes of macromolecules include lipids, proteins, nucleic acid, and carbohydrates.

It should be noted that starch is stored in the chlorophyll content of the peel of the unripe bananas. During ripening, there'll be an increase in the breakdown of the starch that can be found in the fruit and this will ensure there's an increase in the glucose too.

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Question 3 point)
in the late 1980's scientists discovered a new fossil skeleton that changed their thinking about the events leading to life on land. This new fossil
had legs and feet, but ankles that were too weak to support it's weight on land. It had lungs and gills, but the rib cage was too short to prevent
the chest cavity from collapsing when the animal was on land. These structures suggested that limbs evolved before retrapods moved onto
land. What is the name of this new fossil skeleton?

Answers

Answer:Ichthyostega

Explanation: did the assignment and got it correct!

Which of these claims is true of Venus?


A. Venus has two moons.

B. On Venus, a day is longer than a year.

C. Venus is the fourth planet from the sun.

D. The atmosphere of Venus is capable of supporting life.

Answers

Answer:

B.) On Venus, a day is longer than a year, is the answer to your question. I hope this helps.

Answer:

b

Explanation:

took the test

how many species of marine amphibians are there today?

Answers

Answer:

8,000.

Explanation:

Nearly 90% are frogs.

Which of the following is true breeding plants if they are allowed to self pollinate a b or c

Answers

Answer:

C

Explanation:

the nucleic acid sequence in mrna is determined by

Answers

Answer:

the genetic code

Explanation:

which is the sequence of bases in dna which codes for the sequence of amino acids in protein molecules

what happen to the matter during a phase changes​

Answers

Answer:A phase change is a physical process in which a substance goes from one phase to another. Usually the change occurs when adding or removing heat at a particular temperature, known as the melting point or the boiling point of the substance. Removing heat from a substance changes a gas to a liquid or a liquid to a solid.

Which disinfection method for wastewater is not effective in water with high turbidity?

Chlorination
Nutrient removal
Ozonation
UV light

Answers

Answer:

UV light

Explanation:

at the end of meiosis ii, how many chromosomes are present in each cell of a human? how many cells are produced?

Answers

Answer:

23 chromosomes and 4 cells

Explanation:

which organelle helps contribute to a plant cell’s ""boxy"" shape?

Answers

Answer:

Cell walls give the plant cells their boxy shape and provide support for tall upright structures like stalks and tree trunks.

in the adult digestive tract, where do lipases break fat into fragments so that it can be absorbed into the lymph?

Answers

As to the digestive tract, the function of the lipases would take place in the small intestine.

Lipase is an enzyme that helps us to metabolize fat. It does this through hydrolysis. Although in reality, as an enzyme, its main function is to catalyze this process. Lipases are the subclass enzyme of the esterases.

Lipases are necessary for the proper digestion and transport of fats in the form of lipids. They are also essential to process these lipids in the human body. This enzyme is present in most living organisms outside of humans.

Although lipase enzymes are produced throughout the body, the bulk of lipase production occurs in the pancreas. It will then travel to the small intestine to carry out its functions in the digestive tract.

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In the adult digestive tract, lipases in the small intestine break fat into fragments so that it can be absorbed into the lymph.

Fat digestion occurs efficiently and almost completely in the small intestine by pancreatic secretion of lipases.

Pancreatic lipase acts on triacylglycerides to give free fatty acids and monoacylglycerides.

First, they are absorbed by the epithelial cells of the intestinal wall called enterocytes, creating complex particles called chylomicrons, loaded with triglycerides.

Fatty acids are re-esterified within the enterocyte and enter circulation through the lymphatic pathway as chylomicrons.

Chylomicrons bind to lymph, which carries them to the bloodstream, this indicates the great importance of lymph in the process of assimilation of dietary fats.

Therefore, we can conclude that in the adult digestive tract, lipases in the small intestine break fat into fragments so that it can be absorbed into the lymph.

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what happens to solid waste in the circulatory system

Answers

Answer:

It takes it to other body parts and they remove them from the body.

the red blood cells and brain are two body tissues that derive most of their energy from

Answers

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The red blood cells and brain are two body tissues that derive most of their energy from glucose.

Glucose is the answer.

The red blood cells and brain are two body tissues that derive most of their energy from carbohydrates. The correct option is C.

What are carbohydrates?

Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats.

Glucose is created by your body's breakdown of carbs. The primary source of energy for the cells, tissues, and organs in your body is glucose, sometimes known as blood sugar.

Under normal conditions, glucose serves as the brain's main energy source.

Using either glycolysis or oxidative phosphorylation—the latter of which is 15 times more efficient—glucose is used to create energy in the form of adenosine triphosphate (ATP).

In the absence of glucose, the brain has backup energy sources, such as ketones created by fatty acid metabolism, which predominantly takes place in the liver.

These include 3-hydroxybutyrate, acetone, and acetoacetate (3BHM).

Thus, the correct option is C.

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Your question seems incomplete, the missing options are:

fat

protein.

carbohydrate.

iron.

10. Below is the structure of octane, the major component of gasoline. What type(s) of

bond(s) is/are found in a molecule of octane? (Hint: Think of the shape of the molecule.)

Η

H

H

H

Η

Η Η

Η

Η

H-C-C-C-C-C-C-C-C-H

H

H

Η Η Η Η Η

Answers

Answer:

Covalent bond

Explanation:

The answer is covalent bond

A molecule of octane which is a component of gasoline contains covalent bonds.

Octane is a hydrocarbon compound, specifically an alkane, with the molecular formula C8H18. The structure you've provided illustrates the arrangement of carbon (C) and hydrogen (H) atoms in octane.

In octane, each carbon atom forms four single covalent bonds with other atoms (either carbon or hydrogen). Covalent bonds are formed when atoms share electrons to achieve a stable electron configuration. In the case of octane, carbon atoms share electrons with other carbon and hydrogen atoms to fill their valence electron shells, resulting in a stable and energetically favorable arrangement.

The structure of octane is a straight-chain alkane, with carbon atoms forming a chain and hydrogen atoms attached to the carbon atoms. The single covalent bonds between the atoms are represented by lines in the structural formula.

The shape of the molecule is determined by the arrangement of atoms and the types of bonds between them. In the case of octane, the single covalent bonds allow the carbon atoms to form a linear chain.

In conclusion, octane molecules are held together by covalent bonds, specifically single covalent bonds between carbon and hydrogen atoms. This type of bonding contributes to the stability and structure of the octane molecule, making it a major component of gasoline and contributing to its combustible properties.

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which type of organelle is primarily involved in the synthesis of oils, phospholipids, and steroids?

Answers

Answer:

mitochondrion

Explanation:

its because respiration takes place here where food is broken down to small particles

Does the Tilt of the Earth's axis shine on different latitudes at different angles throughout the Year?

True
False

Answers

yes so true I think

hope this helps

Remaining Time: 59 minutes, 12 seconds.
Question Completion Status:
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Question 4
Newly synthesized proteins destined to be secreted from the cell are likely to be found in all of the following places EXCEPT:
The lumen of the ER
The lumen of the Golgi
The lumen of the lysosome
The lumen of the SER
Moving to the next question prevents changes to this answer.

Answers

Newly synthesized proteins destined to be secreted from the cell are likely to be found in all the options except the lysosome.

Both the endoplasmic reticulum and Golgi apparatus are involved in protein processing and transport.

However, the lysosome is an organelle responsible for digesting or degrading excreted biomolecules as well as dead organelles. The lysosome is spherical and most contain digestive enzymes capable of degrading biomolecules in its lumen. Thus, a protein destined to be secreted from the cell will most likely not be found in the lysosome, otherwise, the protease enzyme present in its lumen would degrade them.

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Help!!! Please Critical Thinking Question:
Why are enzymes specific, and why can't each one speed up many different reactions? Why
this beneficial?

Answers

Answer:

The specificity of an enzyme is due to the precise interaction of the substrate with the enzyme. This precision is a result of the intricate three-dimensional structure of the enzyme protein.

Explanation:

How do cells
Aquire the materials.
and
energy
necessssary
to
sustain cire?

Answers

Answer: they take nutrients from food

Explanation:

Cells get energy by taking in nutrients from food. Cells get energy only by taking in oxygen from the atmosphere.

how many parents are involved in asexual reproduction

Answers

Answer:

1

Explanation:

Only one parent is needed in asexual reproduction.

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