What is a good example of first-class lever system in the body?
An example of a first class lever in the human body is the head and neck during neck extension. The fulcrum (atlanto-occipital joint) is in between the load (front of the skull) and the effort (neck extensor muscles). The muscles are attached to the posterior part of the skull to allow for the greatest effort arm.
Answer:
An example of a first class lever in the human body is the head and neck during neck extension
Explanation:
Irradiation uses ionized radiation to preserve food and to prevent it from spoiling.
False
True
Answer:
True
Explanation:
1. If an embryo's cells carry a Y chromosome, its genes cause what
to develop
Explanation:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes.
Most human cells contain 23 pairs of chromosomes. One set of chromosomes comes from the mother, while the other comes from the father. The twenty third pair is called the sex chromosomes, while the rest of the 22 pairs are called autosomes.
Typically, biologically male individuals have one X and one Y chromosome (XY) while those who are biologically female have two X chromosomes. However, there are exceptions to this rule.
The sex chromosomes determine the sex of offspring. The father can contribute an X or a Y chromosome, while the mother always contributes an X.
The Y chromosome is one-third the size of the X chromosome and contains about 55 genes while the X chromosome has about 900 genes.
In genealogy, the male lineage is often traced using the Y chromosome because it is only passed down from the father.
All individuals carrying a Y chromosome are related through a single XY ancestor who (likely) lived around 300,000 years ago.
The Y chromosome contains a "male-determining gene," the SRY gene, that causes testes to form in the embryo and results in development of external and internal male genitalia. If there is a mutation in the SRY gene, the embryo will develop female genitalia despite having XY chromosomes.
Variation in the number of sex chromosomes in a cell is quite common. Some men have more than two sex chromosomes in all of their cells (the XXY variation is called the Klinefelter syndrome), and many men lose the Y chromosome from their cells as they age. Smoking may exacerbate this loss.
Some genes that were thought to be lost from the Y chromosome have actually relocated to other chromosomes.
Much of the Y chromosome is composed of repeating DNA segments. Specialized techniques are needed sequence and determine the arrangement of these highly similar segments.
Many health conditions are thought to be related to changes in genes expressed on the Y chromosome. This is currently an active area of research.
12. How can a person help decrease his or her risks of heart disease, cancer, and other diseases? (5 points)
Answer:
Try to limit saturated fats, foods high in sodium, and added sugars. Eat plenty of fresh fruit, vegetables, and whole grains.
Don't have a habit of smoking
No excessive alcohol consumption
Be active/ workout, go on walks, don't sit around all day
Drink plenty of water
Explanation:
Devon picked me up after school today in his dad’s car. It’s an antique from
the 1950s and doesn’t even have safety belts! Devon drives really fast, but
other than that he’s a good driver.
Health Risks:
Your Rewrite:
Answer:
The health risks include - fatal injuries by speeding and ejected due to the absence of seat belts.
Explanation:
As it is mentioned that car is an antique from the 1950s so there would be no legal obligation for not having and not wearing a seat belt. However, there is a risk present in speeding the car and it becomes riskier as there is no seat belt for the front seat or passenger seat.
Rewrite: It is found that there are 30 percent more likely to get ejected in a fatal crash die from their injuries so one should avoid driving fast especially if there is no sat belt and always seat belt if present.
The smallest bone in the pelvic girdle is the
O pubis.
o ilium.
O ischium.
O calcaneus.
Answer: calcaneus.
Explanation:
The term empty calories means the food doesn't help the body.
True
False
Answer: true
Explanation:
I just found out my dad is a ninja. Who else is one :))
Answer:
not me, my dad is too
Explanation:
Answer:
Ah yes, my favorite homework question
Explanation:
What happens when the negative feedback response to a stimulus
Answer:
A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
Explanation:
Explain the population distribution according to rural and urban areas.
Answer:
According to the United States Census Bureau, an urban area is a city with a population size of more than 2,500 people, and a rural area has a population of fewer than 2,500 people. This definition can be tricky because it does not include information about the size of the area or the density of the population.
Explanation:
Brain-List?
Select the correct answer.
In the Vault event, each gymnast begins by making how many vaults?
A. one
B. two
C. three
D. four
Answer: B
Explanation: i know it because i watch a lot of gymnast
Molecules diffuse from capillaries to body cells
by moving through the
1 veins
2 arteries
3 intercellular fluid
4 plasmas
A patient complains to his nurse that he is in great pain and that his current medication must not be working. He asks the nurse to prescribe him a new painkiller. Why should the nurse refuse ? A Nurses requires a second opinion before they are allowed to prescribe medicine. B. The patient may have an allergic reaction to the new medication and go into shock C. Nurses do not have education in these types of medicines .D. It is outside the nurse's scope of practice to prescribe medication
Answer:
D. It is outside the nurse's scope of practice to prescribe medication
Explanation:
In a health care facility, nurses are not allowed to prescribe drugs because it lies outside their scope.
Irrespective of the magnitude of complain from the patient, it is not the responsibility of the registered nurse to prescribe new drugs to a patient receiving care in healthcare facility.
Hence the nurse should refuse to grant the request of the patient.
A group of kittens from the same litter with the same two parents are below. Which statement best shows why the
offspring would have different traits from each other?
O a
Ob
Sexual reproduction allows for uniformity among the offspring.
Asexual reproduction allows for uniformity among the offspring.
Sexual reproduction allows for diversity among spring.
Asexual reproduction allows for diversity among offspring,
Od
WILL NAME BRAINLIEST!!
which of the following supports the argument that genetic selection improves animal welfare?
A) genetic selection can produce heartier crops
B) genetic selection can modify aggressive behaviors
C) genetic selection can altar physical traits
D) genetic selection can boost food production
Answer: The answer to your question is D.)
Explanation: Why it is D is because animals have to have plenty of food in order to survive. If they did not have plenty of food, they will starve to death, and they will eventual die. What happens if they die? Well, once they die the population of animals decreases and they will eventually become extinct.
Hope this helps. Have a great day :3
can someone please tell me if I got this right
Which canned products do even professional chefs tend to use regularly?
A. Tomato products
B. Corn, peas, and carrots
C. Fruits in sweetened syrups
D. Beets and other root vegetables
Answer:
A
Explanation:
:)
which hygiene claim is not supported by reserch
Answer:
Hand soap prevents disease better than antibacterial soap
Explanation:
Previous research has supported that regular cleaning of teeth could improve dental health of a person. It is advisable that we wash our hands after going to the toilet/latrines because hand washing could kill germs and bacteria that are invisible by our naked eyes thus prevent us from diseases. Dentists have advised that brushing with fluoride toothpaste helps to prevent cavities.
What are some of the ways that early childhood education caregivers can build relationships with the children they care for?
If the baby is born addicted to opioids how do they get the baby off it?
Answer:
they get treatment in the hospital after birth
Explanation:
the deltoids allow for a wide range of actions true or false please help I only have a couple minutes left
10 points if you answer this!
Answer:
2 is self-filling
Explanation:
The rear footprint is the largest and small children and objects can be hidden from the driver's view?
True or false?
Answer:
im pretty sure its true
Explanation:
The rear footprint is the largest and small children and objects can be hidden from the driver's view is true
The correct answer is true
What are the different kinds of footprints?Passive and active digital footprints are the two main categories. When using the internet, you unknowingly leave behind data known as a passive digital footprint. Your IP address, general location, or browsing history are a few examples. When you knowingly provide information online, you leave behind an active digital footprint.
What exactly is an eco footprint?The Ecological Footprint calculates the amount of biologically productive sea and land area consumed by a person, a region, all of humanity, or a particular human activity.
To now more about footprint visit:
https://brainly.com/question/14441911
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Why does your heart never tire of constantly beating to pump blood throughout your body?
A.
It belongs to the skeletal muscle group, which means it moves involuntarily.
B.
It consists of fibers that move voluntarily, so you can train these fibers to increase their endurance level.
C.
It has a high level of muscular strength due to extensive weight training.
D.
It consists of cardiac muscle tissues, which means it moves involuntarily.
Answer:
D
Explanation:
Because it beats 250 times in about one hour
Answer:
the answer is d
Explanation:
i just took the test and i passed 5/5 !
Genital human papillomavirus (HPV) is the most common sexually transmitted infection. What, if any, treatment options exist for HPV, and what are the risks and complications of this type of infection? (1 point)
a
There is a vaccine that prevents contraction, but if someone is infected, the virus can develop into serious diseases including genital warts and cervical cancer.
b
There is a vaccine to treat a contracted infection, but if the infection is not cured, it can develop into genital cancer or infection to the brain, heart, or blood vessels.
c
There are no effective treatment options, but HPV usually goes away on its own; in rare cases where the infection does not go away, it spreads to cause heart disease or joint infection.
d
There is an antibiotic that can treat HPV if caught early; but if left untreated, it can spread to cause cervical cancer or infections in the brain or nervous system.
Answer:
a. There is a vaccine that prevents contraction, but if someone is infected, the virus can develop into serious diseases including genital warts and cervical cancer.
Explanation:
The Human Papillomavirus (HPV) is a common virus contracted through sexual intercourse. Some people are not aware that they actually have the virus while others may experience serious conditions of having cervical cancer. There is no cure for HPV once a person contracts it, but there's a vaccine to prevent contracting the virus. This vaccine is recommended to be given to girls starting age 9. It is followed by another dose 6-12 months after. Women older than 26 years old are no longer recommended to have this because they're most likely to have been exposed to many HPV already.
giving away points until Christmas |QOTD: what do you want for Christmas
Answer:
I want a friend
Explanation:
Im lonely
Answer:
thanks for points always be happy Never be sad Sad is bad you Know that
is boredom that bad?
Answer:
yea the longer your bored the worse it gets cuz ur just standing or sitting there or laying there just bored
Explanation:
Answer:
It depends.
Explanation: It depends. If you are bored for a few minutes with nothing to do, it's not pleasant but not terrible. If you had nothing to do for hours, then yes. Boredom can get bad after a long amount of time. But it won't really affect you that much. Unless it's for several years-
When making whipped cream, you get the best results by
adding flour.
heating the cream.
putting the bowl and whisk in the freezer.
storing the finished product at room temperature.
What are 5 negative coping strategies for stress
Answer:
Criticizing yourself (negative self-talk)
Driving fast in a car.
Chewing your fingernails.
Becoming aggressive or violent (hitting someone, throwing or kicking something)
Eating too much or too little or drinking a lot of coffee.
Explanation:
these are what I thought of hope it helps
the calves function to do everything except a) propel you forward b) absorb load with each impact c) lift your toes d) support the rest of your lower limb and body
HURRY PLEASE!!!
Answer:
I think its C. lift your toes