if the papilla of a hair follicle is destroyed
a. the hair produced by the follicle will change from terminal to vellus
b. the color of the hair will become lighter
c. the texture of the hair will become coarser.
d. the follicle will lose its blood supply.
e. hair production will not be affected

Answers

Answer 1

The hair matrix will lose its blood supply if the papilla of a hair follicle is destroyed.

Hence, Option D is correct

Specialized mesenchymal cells called hair dermal papilla cells are found in the dermal papilla at the base of hair follicles. These cells are essential for the growth, cyclization, and production of hair. The growth of hair follicles depends on the dermal papilla, which is also crucial for controlling the hair growth cycle. The dermal papilla, which houses the blood supply for the hair, is located at the base of the hair follicle/hair bulb. Just above the dermal papilla and separated from it by a basement membrane is the hair matrix, which houses the proliferating cells responsible for producing the hair as well as the internal root sheath.

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Related Questions

A dichotomouys key is used to identify a plant. 1a. Leaves are spiny ......................Pinus taeda 1b. Leaves are broad..................... Go to 2 2a. Single leaf..........................Go to 3 2b. Many leaves....................... Go to 4 3a. Leaf edge is smooth..............Cornus florida 3b. Lead edge is rough...............Ulmus americana 4a. Leaflet edges are smooth........Albizia julibrissin 4b. Leaflet edges are rough.........Juglans nigra A plant has many broad leaves with rough edges. What type of plant is this? (1 point)

albizia julibrissin
pinus taeda
cornus florida
juglans nigra

Answers

Answer:

juglans nigra

Explanation:

I did my research and its correct I finished the quiz

1 B

2 C

3 D

4 C

5 A

The plant identified by the dichotomous key is juglans nigra.

What is a dichotomous key?

A dichotomous key is a tool used to identify any plants and animals in the ecosystem.

They are identified by their morphological traits.

The key is made up of a set of paired assertions or clues about the qualities or attributes of the organisms.

It serves as a step-by-step guide to identifying each object.

Thus, the correct option is D, juglans nigra.

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Nucleotide are composed of a photosphate group a sugar and nitrogenous base DNA Isela made up of long Strands of nucleotide which part of the above molécule can differ between nucleotides

Answers

Answer:

The phosphate end and OH end of nucleotide in DNA differ from free nucleotides molecules.

Explanation:

5' phosphate group of one nucleotide and 3'-OH group of another nucleotide combine to form phosphodiester bond which holds the nucleotides in DNA molecule.

The phosphate end and OH end of nucleotide in DNA differ from free nucleotides molecules.

What are 3 ways in which matter changes over time?


Please help me i have a science paper that has this question

Answers

solid , maltings , freezing

1 and 2 please i dont know the answers i have more to come

Answers

Answer:

1. C.) Their cell walls contain chitin

2. C.) Chloroplast

um so I dont know if this is true bc my dad said it was true but

do blue eyes get sensitive to the bright white snow then brown eyes do?

me my dad and my sister have blue eyes while my mom has brown ​

Answers

Answer:

Yes

Explanation:

They have less pigment to block from UV and Sun rays!

Answer:

yes I believe it is true I have brown eyes tho

*PLS HELP ME**
"Scientists are tapping algae to fuel a sustainable energy future."
Type a one page essay on your thoughts about algae as a biofuel. Is it economically viable? What are the pros and cons?

Answers

Answer:

How many word tho ?

Explanation:

What are the potential advantages and disadvantages of a major shift from the hard or traditional path of energy development to the soft or visionary path?

(These were the corresponding textbook pages, if needed) Please read the following from the textbook Environmental Science:
7th Edition - Chapter 17
9th Edition - Chapter 14

Answers

Answer:

Advantages of following the soft path, the argument here is alternative sources of power such as hydropower, geothermal energy , wind energy , and photovoltaic cells must be developed. This provides a alternative source to remain in a healthy environment and also function as the society we currently live in using the hard path.  Disadvantages of following the hard path result with future generations fearing over the irreversible damage of climate change and the damage done to our atmosphere. The hard path argue that we should continue to operate in the future as we have in the past, except more efficiently. This is close to impossible and will only continue the negative effects the hard path( the path we have been following) results in. The major shift determines the outcome of this world, the futures worries or reliefs and ultimately the survival of humans.

Explanation:

HELPP PLZZZZZZ !!!!!!!!
What provides the energy for all living processes?
A. chemical bonds
B. ionic compounds
C. radioactive isotopes

Answers

Answer:

C

Explanation:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter.

1) How is nondisjunction related to Down syndrome and other abnormal chromosome numbers?

2) State the differences between DNA and RNA

Pleaaseeee helllpppp :(((

Answers

1. Down syndrome is usually caused by an error in cell division called “nondisjunction.” Nondisjunction results in an embryo with three copies of chromosome 21 instead of the usual two. Prior to or at conception, a pair of 21st chromosomes in either the sperm or the egg fails to separate.


2. DNA contains the sugar deoxyribose, while RNA contains the sugar ribose.


DNA is a double-stranded molecule, while RNA is a single-stranded molecule.

Choose either one ^^^

Hope this helps you.

regular reflection is the ________reflection of light on a(n)_________surface.​

Answers

Answer:

1. parallel ,2. smooth

Explanation:

hope it helps you

please mark me as brainlist

Are haploid cells sexual or asexual reproduction?

Answers

sexual reproduction cuz u need an egg and sperm

4. What might happen if an ant's antennae were
damaged?
a. It might have trouble walking
b. It might have trouble lifting heavier objects
c. It might have trouble killing its prey
d. It might have trouble communicating with other ants

Answers

Answer:

it might have trouble walking

the answer would be a

What is the outer layer of the brain often called?
neurons
axons
grey matter
white matter

Answers

Answer:

DURA MATTER

Explanation:

Answer:

grey matter

Explanation:

1. Which of the following is NOT one of the Earth's systems?
A Hemisphere
B Biosphere
C Atmosphere
D. Hydrosphere

Answers

A. Hemisphere

..................

Answer:

B.Biosphere

Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

Explanation:

please mark me as brainliest answer

state birth control methods according to Islam view?
please help ​

Answers

Answer:

The Qur'an does not refer to contraception explicitly, but Muslims opposed to birth control often quote the Qur'an as saying "

Explanation:

You should not kill your children for fear of want" (17:31, 6:151) and interpret this as including a ban on contraception as well as infanticide.

explain how the structure of ATP relates to its function​

Answers

Answer:

ATP functions as the energy currency for cells. ... The structure of ATP is that of an RNA nucleotide with three phosphates attached. As ATP is used for energy, a phosphate group or two are detached, and either ADP or AMP is produced. Energy derived from glucose catabolism is used to convert ADP into ATP.

Suppose the phloem of a seed plant is damaged and does not function properly.
How will this most directly affect the plant?

Answers

Answer:

Food will not be carried away from the leaves

Explanation:

Why is natural selection not random

Answers

Answer : because natural selection helps certain animals to adapt to their current environment

Explanation:

How are government agencies like the local health department working to keep the public safe from the problem of HAB's?

Answers

Answer:

The local health departments work together with local water suppliers and act to monitor harmful algal blooms (HABs)

Explanation:

Harmful algal blooms (HABs) are produced by blooms of algae (phytoplankton), some of them may produce toxins that lead to illness/death in humans and marine organisms (e.g., marine mammals, fish, seabirds, etc). HABs represent a real concern for coastal areas. Cyanobacteria, also known as blue-green algae, may produce HABs both in fresh water and in marine water. Some of the most common causes that may lead to a HAB include the runoff of nutrients (especially those rich in nitrogen and phosphorus), high temperatures, a slow movement of water bodies, etc. The local health departments work to monitor these phenomena by collecting samples in order to analyze the state of the water (i.e., by identifying the presence of toxins, especially cyanotoxins) and give advice to local residents. For these purposes, it is generally required to analyze phytoplankton composition, especially the presence of accessory pigments to chlorophyll a (since these pigments represent good indicators for possible HABs).

Explain the difference between the effects of balanced and unbalanced forces on an object. To receive full credit you must mention net force and whether the motion will change or not.

PLEASE HURRY WILL GIVE BRAINLIEST!!!

Answers

Answer:

balanced forces dont result in a change of motion. Unbalanced forces always result in a change of motion

if the forces applied are different amounts of newton's it causes an unbalanced force changing motion or even direction

Which element is so reactive it is found in nature only in compounds?
Group of answer choices

Na (sodium)

Au (gold)

O (oxygen)

Fe (iron)

Answers

Na (sodium), because alkali metals are not found freely in nature due to their high reactivity. (In this group are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).

What differentiates Hela cells from other human cells?

Answers

Answer:

a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

Explanation:

The main difference between Hela cells from other human cells is that a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

What happens when the involvement of hela takes place?

The involvement of hela made to the developing field of genetics is a lot was educated about cell reproduction, DNA and mapping genetics. The hela cells prepared them ideal for use in the polio vaccine trials because they were more liable than other cultured cells.

Cancer cells such as Hela cells escape to normal cell cycle by mutations that lead to the misexpression and/or overexpression of regulatory molecules (e.g., cyclins and cyclin-dependent kinases) and faulty checkpoint control of the cell cycle.

The control of the cell cycle depends on 1-cyclins and cyclin-dependent kinases (CDKs) that regulate the cell cycle by a cascade of protein phosphorylations and 2- a group of checkpoint controls that monitor the completion of critical cellular events.

Therefore, The main difference between Hela cells from other human cells is that a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

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True or False: Eye Color: Blue and Brown and Freckles: Freckles or no freckles are examples of human traits that have 2 variations of that trait. Typically there is not any human trait like these that are more beneficial than another. ​

Answers

Answer:

Explanation:

True

If a gene has two alleles, there are two possible genotypes.

a. True

b. False

Answers

Answer:

b. False

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

Heredity refers to the transfer of traits (specific characteristics) from the parent of a living organism to her offspring through sexual reproduction or asexual production. Some examples of hereditary traits are dimples, tongue rolling, baldness, handedness, freckles, curly hair, color blindness, height, etc.

According to Mendel's Law of Dominance, if a gene has two alleles, there are three (3) possible genotypes.

The three (3) possible genotypes are;

I. A combination of alleles such as AA.

II. A dominant combination (phenotype) such as Aa.

III. A recessive combination such as aa.

Where;

A represents the dominant allelea represents the recessive allele.

Also, a single version of a gene expressed by a living organism is referred to as an allele.

Why is biodiversity important?

Answers

Answer:

Biodiversity is important to humans for many reasons. Ecological life support biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services

why is it important that you have white blood cells that perform edocytosis

Answers

Endocytosis is the process by which cells internalize substances from their external environment. It is how cells get the nutrients they need to grow and develop. Substances internalized by endocytosis include fluids, electrolytes, proteins, and other macromolecules. Endocytosis is also one of the means by which white blood cells of the immune system capture and destroy potential pathogens including bacteria and protists. The process of endocytosis can be summarized in three basic steps.

The Basic Steps of Endocytosis
The plasma membrane folds inward (invaginates) forming a cavity that fills with extracellular fluid, dissolved molecules, food particles, foreign matter, pathogens, or other substances.
The plasma membrane folds back on itself until the ends of the in-folded membrane meet. This traps the fluid inside the vesicle. In some cells, long channels also form extending from the membrane deep into the cytoplasm.
The vesicle is pinched off from the membrane as the ends of the in-folded membrane fuse together. The internalized vesicle is then processed by the cell.
There are three primary types of endocytosis: phagocytosis, pinocytosis, and receptor-mediated endocytosis. Phagocytosis is also called "cell eating" and involves the intake of solid material or food particles. Pinocytosis, also called "cell drinking", involves the intake of molecules dissolved in fluid. Receptor-mediated endocytosis involves the intake of molecules based upon their interaction with receptors on a cell's surface.

Hope this helps

Why can particles diffuse? Make it like a one sentence pls

Answers

[tex] - [/tex]

That's cause they have large spaces between them .

Particles can diffuse because  the particles are too small and they do not have any define path, so they move from high density region to low density.

What is a particle?

"A particle is a small piece of anything. Particle can also refer to a subatomic particle with mass and structure, but takes up hardly any space at all. Particles are tiny."

What do you mean by diffuse?

"Diffuse means spread out over a large area."

What is diffusion?

“Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration gradient.”

What causes particle to diffuse?

"Diffusion occurs due to the random movement of particles. It usually happens due to a concentration gradient, meaning that molecules move from an area of high concentration to an area of lower concentration."

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Duplicate chromosomes line up (in a single line) during metaphase

Answers

Answer:

Metaphase: During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate. Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate. ... These separated sister chromatids are known from this point forward as daughter chromosomes.

Explanation:

# carry-on learning


The following statement from the video suggests the use of which standard of of science to assess RELIABILITY?

"Simulation experiments can not tell us exactly how life formed in the past, but if
enough of them are done it could eventually tell us if it's possible for life to emerge
from chemistry"

O Replication of Results
O Sufficient Sample Size
O Empirical & Measurable Evidence
O Concept of Falsification

Answers

Answer:

I think it’s C Empirical & Measurable Evidence

Explanation:

...

Answer: c

Explanation:

I took the test

Which two statements are true of fossilization?
A. Many types of organisms never form fossils.
B. Animals with soft bodies fossilize easily.
c. Conditions must be perfect for a fossil to form. D. All fossils of fish are found near water.

Answers

Answer: c and a

Explanation:

Answer:

It's A and C.

Explanation:

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