What allows the sperm to get through the protective
covering of the egg? How does the egg change upon
fertilization? Why are the changes in the egg important?

Answers

Answer 1

Answer:

The egg is covered in a thick outer coating known as the zona pellucida, a layer of carbohydrate-covered proteins that surrounds the plasma membrane. The zona pellucida helps protect the egg and is responsible for mediating the initial meeting of sperm and egg.

An egg changes dramatically at fertilization. These changes include its developmental potential, its physiology, its gene expression profile, and its cell surface. ... We highlight the major cell surface changes that occur in echinoderms, one of Just's preferred research organisms.

Explanation:

Answer 2

Answer:

The sperm releases substances that allow the sperm to enter the egg. Changes happen in the egg that prevent other sperm from entering. This is important so that the total chromosome count of the zygote is 46.

Explanation:


Related Questions


The client is discharged from the hospital with a new prescription for furosemide. During a follow-up
visit one week later, the nurse notes the following findings. Which finding is most important to report
to the health care provider?

Answers

Answer:high blood pressure

Explanation:

Could go In to shock

What effect does exercise have on the nervous system?
A.
Prolonged exercise degenerates the nervous system.
B.
Increased blood flow reduces nerve sensitivity.
C.
Repetitive motion develops nerves and nerve endings.
D.
Higher body temperature impairs nerve message transmissions.


Please select the best answer from the choices provided.

A
B
C
D

Answers

Answer:

C on edge 2021

Answer: C. Higher body temperature impairs nerve message transmissions.

Explanation: On Edge!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

List 25 of the healthiest foods one can eat.

Answers

Answer:

Fruits

Vegetables

Dairy Products

Meat and Fish

Avocados. Rich, creamy avocados are one of the top healthy foods for replacing simple carbohydrates.

Bananas. Bananas are one of the healthiest fruits loaded with fiber and potassium.

Blueberries.

Apples.

Strawberries.

Lemons.

Broccoli.

Cucumber

Explanation: Thats all i can think of..

Answer:

oop-

Explanation:

lbjbbfkfbkabbwglbg

"we went from chillin in the projects to makin projects" what song

Answers

Answer:

A Boogie Wit Da Hoodie - Drowning

The line "we went from chillin in the projects to makin projects" is from the A Boogie Wit Da Hoodie - Drowning song.

Who is Boogie Wit Da Hoodie?

Craftsman Julius Dubose, referred to expertly as A Boogie mind da Hoodie, is an American rapper, vocalist, and musician. He is signed to Atlantic Records and Highbridge the Label, his own label imprint.

Julius Dubose, an artist who goes by the stage name A Boogie wit da Hoodie, was born in New York City on December 6, 1995. He is a rapper from the United States who became famous with his breakthrough hit "Drowning" from his debut album.

The hooded sweatshirt or "hoodie" that we know today was created in the 1930s by Knickerbocker Knitting Company, which eventually became the brand "Champion," despite the fact that hooded garments were worn before the common era.

Learn more about Boogie Wit Da Hoodie:

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Which of the following statements about education levels and healthcare jobs is true?

A. If you plan to get a bachelors degree, you can work in any job in the health sciences field except psychiatrists and biomedical chemist.

B. If you don’t want to spend more than four years of school you will not be able to work in position such as surgeon

C. If you don’t want to spend more than two years in school, you will not be able to work position such as medical billing assistant.

D. If you plan to get a masters degree you can work at any job of your choice in the Health sciences field

Answers

Answer:

Explanation:

D

Explain the difference between what happens after a meal in the body of a healthy person, a type 1 diabetic, and a type 2 diabetic. Refer to glucose and insulin levels in the blood.

Answers

Answer:

After a meal, glucose levels increase, and what happens in all three situations are:

In a normal person, glucose increases and is assimilated by the hormone insulin at the cellular level, that is why the person does not take energy reserves from other sources and the person does not have metabolic disorders or ketogenic feelings of body fatigue.

In the case of type 1 diabetics, insulin is absent, therefore the injection of insulin is essential on a voluntary basis, since otherwise the glucose will not be assimilated and a glycemic peak will be triggered, with glycosylation of proteins and microvascular alterations in the future . This means that glucose is not used as an energy reserve, therefore fats will be metabolized, which as a product lead to an increase in ketone bodies and metabolic ketoacidosis.

In the case of type 2 diabetes, the effect and impact is less, since that is why they take oral hypoglycemic agents and the glycemic peaks are not so extreme.

Explanation:

The big difference between these three patients is that the insulin hormone responsible for transporting insulin into the cell is present or not present.

which scenariois an example of external pressure to use drugs

Answers

Answer:

The scenario where a friend invites a teen to a party where there are drugs is a clear scenario showing external pressure that leads to the use of prohibited drugs. It is an example of peer pressure. Peer pressure is an example of external factors or external pressure.

Explanation:

this is a structure that holds genetic material, it is located in the nucleus

Answers

Your answer is the nuclear envelope, The nuclear envelope is a double membrane of the nucleus that encloses the genetic material. It separates the contents of the nucleus from the cytoplasm.

Write a paragraph about four to six lifestyle changes that an individual can make to be healthier.

Answers

Answer:

There a multiple lifestyle changes an individual can make to become healthier. For instance, exercising can lead to a better lifestyle. Eating the right proportion of foods like vegetables, meats, dairy, and fruits help maintain a healthy diet. That being said, the person also would have to eat healthier foods and not continuesly snack, drink sodas, etc. Mental health is very important to becoming healthier. Staying in toxic relationships and situations will downgrade that person and their mental health will decline. One last lifestyle change I'll mention is socializing.

When an individual isolates his/herself, they can become depressed (mental health) and unhealthy habits can develop.

Answer:

Any individual can become healthier by following these steps:

Increasing their level of activity: It is important to keep oneself active. A sedentary lifestyle isn’t healthy. A person can make small changes, such as choosing the staircase over an elevator. It helps to have a regular exercise routine. Adults should exercise for at least 30 minutes, five days a week, or at least 2.5 hours per week. Children should exercise for at least an hour daily. The exercise can be vigorous or of moderate intensity—walking, lifting weights, running, playing sports, or aerobics. The exercise should be vigorous enough to lead to an elevated heart rate and sweating.

Eating a healthy, balanced diet: A person’s diet should contain food from all the major food groups—fruits, vegetable, grains, proteins, and dairy. A balanced diet is one that provides all the essential nutrients—carbohydrates, protein, fat, vitamins, and minerals. Choose low-fat, low-calorie items from each of the major food groups. The Dietary Guidelines for Americans and MyPlate offer good guidelines. According to the Dietary Guidelines, the recommended daily calorie count for adult women is 1,800 to 2,200 calories, and for adult men, 2,400 to 2,800 calories. Less active people can refer to the lower limit, while more active people should look at the upper limit.

Controlling stress: When people have a lot of stress in their life, they are likely to suffer from conditions such as headache, anger problems, drug abuse, eating disorders, and fatigue. They should address the reasons for the stress. For example, a person who is stressed due to financial reasons should plan and budget to minimize bills. If they have friends that stress them out, they should avoid interacting with them. For stressors that may not be in a person’s control, such as work pressure, they should learn coping techniques, such as deep breathing or visualization.

Quitting unhealthy habits: Unhealthy habits, such as smoking, abusing alcohol, or using drugs go against the principles of a healthy lifestyle. These habits have a negative effect on health. They increase the risk of cancer, decrease mental capacity, and affect mood. If people are unable to quit these habits on their own, they should contact a doctor or addiction specialist to help them come up with a plan to help them quit.

Explanation:

from plato

And enzyme-based cleaner should be used ___ at least once a week to eliminate the organic matter in which flies breed.

• under equipment
• in cracks and crevices
• Inside refrigeration units
• In the drains

Answers

Answer:

once

Explanation:

Answer:

IN THE DRAINS

Explanation:

i got it right on the quiz

Which of the following is a valid explanation as to why children are at a higher risk to health effects relating to environmental hazards? a. Children's smaller lungs make them more likely to fill up with harmful chemicals. b. Children's immune systems are not fully developed causing them to be at a higher risk. C. Children have less outdoor exposure, making them less adapted to outside conditions. d. Children take more shallow breaths than adults, causing them to inhale contaminants more frequently . Please select the best answer from the choices provided A В D C​

Answers

Answer:

The answer is B

Explanation:

Children need to be kept from harmful enviromental exposure simply because they are not fully developed yet. This especially goes for infants or toddlers. This simply means the younger and smaller you are, the more likely you are to suffer long term effects from enviromental hazards.

I hope this helps!

The following is a valid explanation as to why children are at a higher risk to health effects relating to environmental hazards.

Children's smaller lungs make them more likely to fill up with harmful chemicals. Children's immune systems are not fully developed causing them to be at a higher riskWhat are environmental hazards?

Environmental hazards refers to things or substances that are released in the environment which is dangerous or harmful to humans health.

The are toxic substances that are poisonous.

Therefore, The following is a valid explanation as to why children are at a higher risk to health effects relating to environmental hazards.

Children's smaller lungs make them more likely to fill up with harmful chemicals. Children's immune systems are not fully developed causing them to be at a higher risk.

Learn more about environmental hazards below.

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Which of the following is an example of a short term goal?

A. Completing job applications.

B. Applying for a promotion.

C. Volunteering at a free clinic

D. Obtaining a doctoral degree

Answers

Answer:

b

Explanation:

it is a short term goal and doesnt take long, whereas things like becoming a doctor takes many years.

What is one risky situation you have been in? What are 2 things you could have done to reduce the risks of that situation and keep yourself safer/healthier?

Answers

Answer:

I was at risk of having diabetes, so I stopped eating sugary things and always made sure my blood sugar was low.

Complete the sentence using the correct term.

Gregorio works closely with registered nurses to provide a safe environment for patients. He also alerts them to changes in a patient’s health. Gregorio is a(n) _______

Answers

Answer:

the answer is

Explanation:

HWBAUUHI&AYUIJWDGHABHFJ

Answer:

sorry no one is gonna answer

Explanation:

Help help please it due today and I’ve been sick these days

Answers

for number 10, i’m pretty sure it’s D

If Moses lived for 600 years why we gotta be worried that god wont let us pass 21?

Answers

Answer:

Because cover the time humans have continued to fail God, and Moses was very close to God, look at what the world has come to now, God has promised long life and prosperity to Christians all over the world, but we don't have the ability to live as long as we were supposed to.

Explanation:

when it comes to seeing ______, variety and high intensity are necessities.
a) real results
b) muscle growth
c) higher endurance
d) extreme weight loss​

Answers

Answer:

d ?

Explanation:

I’m pretty sure it’s A or maybe D

Samir is thinking about goals for next semester. Which of her goals is a SMART goal?

a. I want to score a 100 on every assignment and test by paying more attention in class.
b. I want to have a great semester by spending at least four hours each day on homework.
c. I want to improve my grades by working a lot harder than last year.
d. I want to finish my book report on time by spending an hour a day on it for the next four weeks.

Answers

Answer: c. I want to improve my grades by working a lot harder than last year.

Explanation:

The answer c) would be the best goal for her because in that way after improving her grades by working harder she will see and decide which technique is best for her good grades.

Other options in the question can be harmful to her goals because they can make pressure on her and demotivate her. She must try first to work harder than the last year and in that way, she will see how she can set the new goal.

Answer: C-I want to improve my grades by working a lot harder than last year

Explanation:

Primavera

(I picked the health subject because it's about the human body?)

AHEM, Help! So I did research and you can't be a futa unless you have male genitalia and female genitalia. I am female, born female, but hate my female genitalia and feel much more comfortable with a d---aka male genitalia WITHOUT have the v---aka female genitalia. I hate the term Shemale but can not use the term futa. any help? YES I KNOW THIS IS NOT FOR THIS WEBSITE- but I was scared to ask any other website screeee

Answers

well there is a term called transgender if u change from guy to girl or vise versa.  

hope this helps:)

Answer:

I don't know mah friend.... Add me on discord

Explanation:

My discord is: Noisy Boy#0942

Which is the correct idk if the one i picked is right

Answers

what u picked is to transport a measured volume of a liquid. I think it's the last option the 500 ML graduated cylinder

Why are Nutritional Facts Food Labels on food items important?

Answers

Answer:

Nutrition labels can help you choose between products and keep a check on the amount of foods you're eating that are high in fat, salt and added sugars. You can use nutrition labels to help you choose a more balanced diet. For a balanced diet: eat at least 5 portions of a variety of fruit and vegetables every day.

Explanation:

When will my dad love me?
Urgent, please answer.

Answers

Answer:

i do love you son.

Explanation:

In the following scenario, who is being abusive?

Troy and Megan often argue about the importance of school. Troy says Megan spends too much time studying. She needs to have more fun because she is only young once.

Alana and Mike have been dating. Alana tells Mike she does not want to see him any more.

Ellen does not like Ted to spend time with his friends. He would spend his evening with her if he really loved her.

Renee and Shane are in English and American Government together. They take the opposite side on just about everything—politics, religion, and even the meanings of poems.

Troy
Ellen
Renee
Alana

Answers

Answer:

Ellen

Explanation:

Ellen is using a manipulative tactic to make Ted feel bad about spending time with his friends. Saying that "if he really loved her" makes him think that if he spends time with his friends, it's saying he doesn't love her. In doing this, Ellen is manipulating Ted into doing what she wants.

Answer:

C but its a poor choice.

Explanation:

I think 3 is the abusive one, but not very. Ellen is very needy, and that's the real problem.

Troy is just making an observation. He's not demanding anything and he's certainly not being abusive in his observation. He'd just like to see her have more fun.

Alana is being truthful. That's not abuse even though it is very painful for Mike.

Renee and Shane have a very good honest relationship. They disgree but they have a healthy disclosure policy. Neither really wants to hur the other.

PLZZ HELP FAST....Give the correct answers
Yes i know its weird to learn this my age

Answers

Answer:

A. urether

B. urethra

C. urinary bladder

D. kidney

Explanation:

Answer:

A. Ureter

B. Urethra

C. Bladder

D. Kidneys

Explanation:

I took a biomedical class last year! The kidneys (D) filter the liquids in our body, which then go through the ureters (A) to the bladder (C) and then you urinate through your urethra (B).

It's totally normal to learn this at your age, btw!

Using money to exert influence or control over another person is known as:

Sexual abuse

Physical abuse

Emotional abuse

Financial abuse

Answers

Answer:

Financial abuse

Explanation:

its definitly not a or b and C could also happen but D is most accurate.

I’m not an expert on the subject but I’m pretty sure it’s financial abuse

which pathway is responsible for returning deoxygenated blood from from the body to the heart. (plz help!)
a-systemic circulation loop
b-the right lung
c-pulmonary circulatory loop
d-the arteries

Answers

answer: c-pulmonary circulatory loop

Answer:

A

Explanation:

Complete the following sentence.

The only 100 percent effective form of birth control is ....... .

Answers

The only 100 percent effective form of birth control is Abstinence.

Which of the following may be a cause of lymphedema?
A.
Meige's disease
B.
Milroy's disease
C.
Late-onset lymphedema
D.
All of the above

Answers

Answer:

the answer is D hope it helps

Explanation:

Answer:

the correct answer is b. Milroys disease

Explanation:

Milroy's disease (MD) is a familial disease characterized by lymphedema, commonly in the legs, caused by congenital abnormalities in the lymphatic system. Disruption of the normal drainage of lymph leads to fluid accumulation and hypertrophy of soft tissues

Which of the following body areas is distal to the carpal area?

A. Olecranal
B. Palmar
C. Antebrachial
D. Antecubital

Answers

Answer:

The answer is B hope help

Explanation:

How many calories does killua eat a day (hunterxhunter)

Answers

Answer: More than 2,500

Explanation:

This question is referring to the anime Hunter x Hunter with the main character called Killua Zoldyck. He has 5'2 Height and 99,3 lbs weight.

An ideal count of calories that person must take is depending on metabolism, weight, age, and level of physical activity. The recommended daily intake is about 2000,2500 calories.

Since we are here talking about an anime hero who has great level of physical activity we can say that his intake is requiring more than average intake of calories which is more than 2,500.

the question tho lol

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