how does hair appear on the head​

Answers

Answer 1

Explanation:

Blood from the blood vessels in your scalp feeds the root, which creates more cells and makes the hair grow. The hair gets pushed up through the skin as it grows, passing an oil gland along the way.

Answer 2

Answer:

Hair grows by forming new cells at the base of the root. These cells multiply to form a rod of tissue in the skin. The rods of cells move upward through the skin as new cells form beneath them. As they move up, they're cut off from their supply of nourishment and start to form a hard protein called keratin.


Related Questions

my voice for safety advocacy in text ride or driver​

Answers

Answer:

I cannot help you with that because there is no question

Explain how the ear helps humans in balancing.​

Answers

Answer:

The vestibular system which is essential to our sense of balance is located within the inner ear

Explanation:

The vestibular system is the sensory apparatus of the inner ear that provides the brain with the information required for maintaining body balance (postural equilibrium), detecting the position and motion of the head and determining the position of the whole body in relation to gravity. The vestibular system in each inner ear is composed of five organs: 3 semicircular ducts located in the innermost part of each ear (i.e., the inner ear), which are sensitive to angular accelerations (head rotations), and 2 otoliths organs referred to as the utricle and saccule, which are sensitive to linear accelerations. Each semi-circular duct exhibit a different orientation (superior, horizontal, and posterior) in order to sense different movements (e.g. nodding, rotating).

Note that arteries have a thicker middle layer of tissue than veins. Why is this important and how does it affect the structure of the artery as compared to the vein?

Answers

Answer:

The correct answer is - To withstand the high pressure of the outflow of blood from the Heart.

Explanation:

The heart pumps blood to different body parts at high pressure so that it can easily reach all the parts of the body quickly. To able to hold the pressure of the blood pumped at high-pressure arteries need thick walls.

This pressure can be experienced as pulse and which required the walls of arteries and the middle layer or the tunica media to make it much thicker in arteries than in veins. In veins pressure caused by blood is very low pressure that allows them to be thin walls.

why do males and females have different signs and symptoms when it comes to heart attacks

Answers

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For men and women, chest pain or discomfort is the most common heart attack symptom, but women are more likely to report shortness of breath, back or jaw pain, and nausea and vomiting. Black women of any age have a higher incidence of heart attacks than white women.

Women are less likely to need stenting to open a blocked artery, but they still suffer blood vessel damage that reduces blood flow to the heart, causing a heart attack.

what is the total number of bones in the skeleton system​

Answers

Answer:

Bones provide the structure for our bodies. The adult human skeleton is made up of 206 bones.

OAmalOHopeO

Discuss the role of the
kidney in
1. Regulation of blood pressure.
2. Regulation of ECF volume and electrolytes.

Answers

Answer:

blood pressure is regulated by baroreceptors which act via the brain to influence the nervous and the endocrine systems. Blood pressure that is too low is called hypotension, pressure that is consistently too high is called hypertension, and normal pressure is called

Which organisms always have groups of cells organized into tissues?

Answers

Answer:

All living things

Explanation:

Answer

Overview of body organizations

Multicellular organisms, like people, are made up of many cells. Cells are considered the fundamental units of life. The cells in complex multicellular organisms like people are organized into tissues, groups of similar cells that work together on a specific task.

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Why do you think so many people seem to not care about the environmental issues we are facing?

Answers

Answer:

People are not aware of their causes and impacts.

Explanation:

First, people just seem to think that a little bit of harm won't impact the world at all, but that little bit for everyone adds up and the magnitude is a lot worse than people would imagine. Next, even if they/we do know the scale, they don't know how to help or are not interested enough to try and fix the problem. We all think that we won't be able to help enough to fix the issue.


Which type of medications are manufactured as an antigen against the disease-
causing bacteria or virus and then administered to healthy individuals to produce
adaptive immune response?

Chemotherapy drugs

Immune-modulators

Vaccines

Alkylating agents

Please help. Thx

Answers

Answer:

Vaccine are manufactured as an antigen against the disease-causing bacteria or virus and then administered to healthy individuals to produce adaptive immune response

The  type of medications are manufactured as an antigen against the disease- causing bacteria or virus and then administered to healthy individuals to produce adaptive immune response is Vaccines which is the third option.

Vaccines are medications that are manufactured as an antigen against disease-causing bacteria or viruses. They are designed to stimulate the immune system of healthy individuals to produce an adaptive immune response. By introducing a harmless or weakened form of the pathogen or its components into the body, vaccines mimic an infection and trigger an immune response. This allows the immune system to recognize and remember the pathogen, enabling a faster and more effective response if the person is exposed to the actual disease-causing agent in the future.

Learn more about vaccine here.

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Based on the Punnett square, what is the probability that the offspring will have freckles?
25 percent
50 percent
75 percent
100 percent

Answers

Answer:

75%

Explanation:

Using the parents' genotypes, each inner square is filled with a possible genotype for their child. There is a 75% probability that their child will have freckles, or a 25% chance of a child with no freckles. All Weasley children have freckles and red hair.

Please Mark me brainliest

Answer:

The answer to this question is C.) 75%

Explanation:

Please say that I'm the brainiest and push that thank you button :) !!!!!!!!!!!!!

One of the important feature of
tropical region is

Answers

Answer:

A tropical climate is marked by consistently warm temperatures and frequent rainfall, resulting in abundant, diverse vegetation. The seasons are marked primarily by precipitation variation rather than temperature changes, as the latter in the area are minimal.

Explanation:

hope you will be hepled!

1. A biologist studying interactions between an
animal species and its environment is studying
biology at which level?
b. biosphere
c. organism
d. ecosystem
a. cell

Answers

Answer:

ecosystem

Explanation:

That is the definition of ecology.

answer: d. ecosystem

What is electrostatic attraction

Answers

Since they have opposite charge, this force tends to be attractive. So, basically, electrostatic attraction is an attractive force which 2 unlike charges exert on each other when they are kept some finite distance apart. Do you an interesting thing, that like charges can also attract each other.

Answer:

Electrostatic attraction refers to the electrostatic force of long-range interaction occurring between the attractive electrostatic adsorption in aqueous solution with differently charged particles or uncharged particles.

Explanation:

np

que contiene el condón?

Answers

Answer:

plss translate it in English so i Can easyly answer it.

Explanation:

Thank you.

Would an observational study or an experiment be more appropriate to investigate the effects on fertilizer on plant growth? Explain.

Answers

Answer:

Experiment

Explanation:

For such an investigation an Experiment would be the better option. This is because in an experiment you would have both an experimental group and a control group. This would allow you to use fertilizer on one but not the other, therefore, providing seperate results that you can use to compare with one another. This ultimately helps you determine the actual effects that fertilizer has on the growth of plants, since the fertilizer would be the only variable in the experiment. An observational study would only allow you to observe the plants in a natural scenario, without interfering and seperating the plants into different groups with different environments.

which property has not been observed for membrane proteins being degraded for energy during biological pathways

Answers

Answer:

energy storage

Explanation:

Membrane proteins are proteins that are either form part of or interact with cell membranes. Based on their interactions, membrane proteins can be categorized into integral proteins, which are a permanent part of a cell membrane, and peripheral proteins, which adhere temporarily to the cell membrane. Membrane proteins play many critical functions, for example, 1-they are involved in the passive and active transport of substances across cell membranes, 2-act as enzymes that catalyze chemical reactions, 3-act as receptors that bind specific molecules (such as hormones or neurotransmitters) in order to activate signaling cascades, 4-mediate communication between cells, 5-provide a mechanical link between the extracellular matrix and the cytoskeleton, etc.

The passage suggests that in designing the experiment, Johnson relied on the fact that A) fungal hyphae warn beanstalks of danger if a nearby plant is attacked. B) wasps are harmful to the ongoing existence of broad bean plants. C) broad bean plants release noxious chemicals to ward off infestation. D) aphids are able to withstand the aggressive maneuvers used by wasps.

Answers

the correct answer is AlC

dialogue between two friends planning a road trip

Answers

What's your question

Which molecule would be the most affected by limited nitrogen?
myofibrillar proteins in muscle

glucose molecules in starch

fat molecules surrounding organs

cellulose molecules in plant cell walls

Answers

Answer:

The molecule that would be affected by 'limited nitrogen' is the myofibrillar proteins in muscle. Explanation: The myofibrils of the muscle have a number of protein molecules.

Answer:

A

Explanation:

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Our understanding of many of the evolutionary relationships among animals changed after those phylogenies were based on morphological and molecular data (as opposed to only using morphological data). Which of the following groups represents an example of this change?
a. Lochotrophozora
b. Bivalvia
c. Brachiopoda
d. Placozoa

Answers

Answer:

a. Lochotrophozora

Explanation:

Molecular research and studies complement morphological research and improve our awareness and knowledge of evolutionary history. Previously, morphological studies could only reveal to us the variations and distinctions, but molecular studies and phylogeny have enabled us to pinpoint the fundamental mechanism of this variation on a genetic level, as well as locate it down to evolutionary lineage, which has led to more enhanced genealogy and evolutionary studies.

However, the group of organisms that best reflects and represents this kind of change is: Lochotrophozora

Groups represent an example of this change is option "A" which is Lochotrophozora.

What is Lochotrophozora diversification?

Lophotrochozoa is a monophyletic group of animals that includes annelids, molluscs, bryozoans, brachiopods, Platyhelminthes, and other animals that descended from the common progenitor of these organisms.

Lophotrochozoa is one of the three major clades that include bilateral animals, or Bilateria.

Thus, option "A" is Lochotrophozora.

To learn more about Lochotrophozora diversification click here:

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An older woman is transported to the hospital on Thanksgiving Day. While visiting with family for the holiday, the woman fell out of her chair and was unresponsive to her family. Upon arrival to the emergency department, the family reports that the woman lives independently. Before her current state, she recognized family members and was speaking normally. She begins to arouse, and her family notes that she seems unaware of her surroundings and does not respond to questions.
A defect of recognition may be tactile, visual, or auditory. These are known as:___________

Answers

Answer:

Agnosia typically is defined as the inability to recognize sensory stimuli. Agnosia presents as a defect of one particular sensory channel, such as visual, auditory, or tactile.

Provide the missing word in the
sentence below. Write only the
correct word. Provide the whole
word, the first letter of the missing
word is given as a guide to the
correct word and must be included in
the answer.
In freshwater the blood soittes of a
marine fish would be h... to the water.​

Answers

Answer:

Provide the missing word in the

sentence below. Write only the

correct word. Provide the whole

word, the first letter of the missing

word is given as a guide to the

correct word and must be included in

the answer.

In freshwater the blood soittes of a

marine fish would be h... to the water

Explanation:

Provide the missing word in the

sentence below. Write only the

correct word. Provide the whole

word, the first letter of the missing

word is given as a guide to the

correct word and must be included in

the answer.

In freshwater the blood soittes of a

marine fish would be h... to the water

In freshwater the blood soittes of a marine fish would be heated to the water.

protid không phải là thành phần của

Answers

I don’t understand this question

World class swimmers can swim the 100 meter freestyle in about 55
seconds. What is their approximate average speed?
A. 1.82 m/s
B. 1.67 m/s
C. 1.91 m/s
D. 0.55 m/s

Answers

Answer:

A. 1.82 m/s

Explanation:

1.82 m/s is the best and true answer

4: Åcil fast bacteria are
a. Neisseria
b. Staphylococci
e !vlycobacteria
d. All of the above
。​

Answers

Answer:

c. Mycobacteria

Explanation:

The mycobacteria is an acid fast bacteria. So, option (c) is the correct answer.

why do the Philippines have generally warm temperature throughout the year?a. it is near the sun b.it has many volcanoes c. it lies near the equator d. it has many islands.what is the correct answer?​

Answers

Answer:

C. it lies near the equator

C. It lies near the equator

6/9 in decimal.



please help 100 points

Answers

Answer:

.66666666667

6 continues to repeat.

fraction can be reduced to 2/3

Use calculator or write out long hand

¿Qué importancia tiene el agua en las reacciones químicas?

Answers

Answer:

El agua es un medio ideal para reacciones químicas, ya que puede almacenar una gran cantidad de calor, es eléctricamente neutral y tiene un pH de 7.0, lo que significa es que no es ácida ni básica. Además, el agua participa en muchas reacciones enzimáticas como agente para romper enlaces o, al eliminar de una molécula, para formar enlaces.

Explanation:

You want to study the effect of agriculture run-off on the rate of antibiotic resistant bacteria in ponds. You gather samples from ponds surrounded by high density livestock areas and from ponds at least ten miles from agriculture activities. You grow the bacteria on plates and test how resistant they are to antibiotics. Based on this experiment, the proximity of the pond to agriculture would be best categorized as what

Answers

Complete question:

You want to study the effect of agriculture run-off on the rate of antibiotic-resistant bacteria in ponds. You gather samples from ponds surrounded by high-density livestock areas and from ponds at least ten miles from agriculture activities. You grow the bacteria on plates and test how resistant they are to antibiotics. Based on this experiment, the proximity of the pond to agriculture would be best categorized as what?

the control group the independent variable the dependent variable the hypothesis

Answer:

2. the independent variable

Explanation:

During an experiment, data from an experimental group is compared with the data from a control group. Both groups are selected from the same pool or population, so they are identical in all aspects except for the independent variables.  

The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, from the results that might be a consequence of other factors. The control group does not receive any treatments. It is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment.  

The experimental group is the one that receives the experimental procedure or treatment. The researcher voluntarily changes the independent variables in the experimental group to observe how they affect the group under study. These variables are kept constant in the control group, not influencing the results, while the experimental group receives the treatment. There can be several experimental groups.

Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter.

Dependent variable: Refers to the variable that depends and reacts to any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. This change might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y.

The hypothesis is a conjecture. The researcher hypothesizes in order to predict what is going on or what is expected to occur. A hypothesis is a claim of how it works a relation between two or more variables. Usually, it is written in the present time.    

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The proximity of the pond to agriculture might be considered as an independent variable.

The researcher chooses ponds according to their distance from the crops. In the exposed example, the researcher chose a pond is surrounded by high-density livestock areas and another one at least ten miles away.

The magnitude of run-off might depend on how far the pond is from the crops.

2. Which of the following is not considered an
organism?
a. an oak leaf
b. a spider
c. an elephant
d. a bacterial cell

Answers

Answer:

a. an oak leaf

Explanation:

Bacterial cells would undergo this type of reproduction, Binary Fission. An asexual reproductive process where a single bacterium splits into 2 additional bacteria, each having the same bacterial DNA and or genome as the original bacterium.

So the answer is D

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