Why does an egg's cell membrane change after a sperm have entered it?

to slow down implantation

to initiate cell division in the egg

to prevent other sperm from entering

to ensure that the sperm does not leave

(THIS IS A LIFE SCIENCE QUESTION!)

Answers

Answer 1
To prevent other sperm from entering

Related Questions

what is life? need it for bio class.

Answers

Answer:

Life is living organisms. Humans, animals, and even plants

Explanation:

:)

how do you go throght the life cycle throught metamorphasis and then inside the water cycle preticipating RAIN!!!!

Answers

Answer:

ts the water cycle

Explanation:

preticipation, condensation, evaporatoion

Biology and physics define

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Answer:

Biology is the study of life, while physics are the study of matter and energy used to determine how the universe behaves.

Imagine that a lake contains 2 kinds of fish trout and bass 60% of the fish in the lake are bass and 40% are trout if you caught 5 fish at random from this pond which of the following would you expect to catch

Answers

You would expect to catch 3 bass and 2 trout.

How lake benefit the survival of fish?

Lakes provide an optimum condition for the survival of various fish species. It maintains the level of oxygen throughout. As lakes are not too deep, fishes aquire sufficient oxygen and nutrients for their survival and reproduction.

The percentage of bass is higher as compared to trout, hence out of five, it will definitely have more bass fish.

Therefore, out of five fishes that are caught, 3 of them are bass while 2 are trout.

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Definition for ion science.

Answers

Explanation:

An ion is defined as an atom or molecule that has gained or lost one or more of its valence electrons, giving it a net positive or negative electrical charge.

Question 5 of 22
Many cities are working to reduce waste by finding new uses for garbage.
Which action could help a city reduce landfill waste?
A. Building new incinerators
B. Providing plastic trash bags to residents
O C. Downsizing recycling facilities
D. Providing discarded building supplies to residents

Answers

Answer: D. Providing discarded building supplies to residents

Explanation:

When these discarded building supplies are provided to residents it keeps these supplies out of landfills, giving them another purpose.

Providing discarded building supplies to residents reduces waste.

What is waste reducing?

There are no expenses associated with managing garbage that is never produced, waste reduction (or prevention) is the ideal method of waste management.

Reducing superfluous packaging from manufactured goods and produce is an illustration of waste reduction. Nobody would have to worry about the expense and effort of gathering the surplus packaging, separating it for recycling, disassembling it.

Reducing waste also promotes resource conservation for future generations and a cleaner environment. The following CalRecycle websites might provide you with more information on waste reduction.

Therefore, Providing discarded building supplies to residents reduces waste.

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the increase of carbon dioxide in the atmosphere has had an effect on the earths climate. What is that effect?

Answers

The increase of carbon dioxide in the atmosphere creates a greenhouse effect.

To explain this usually some sunlight is reflected back into space while some is absorbed by the earth keeping the planet warm. However the increase in greenhouse gases such as carbon dioxide prevent the light from reflecting back into space and this light becomes trapped causing the earth to heat more then it should. You can almost think of the trapped heat from the greenhouse gases as a blanket around the earth trapping the heat in.

A cell is 20 micro meters across.what type of cell is this?

Answers

Answer:

Unknown

Explanation:

What are your answer choices?  There could be many different types of cells that are 20 um across.

Who discovered ethanol energy and when?

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Answer:

It was discovered by Nicolaus Otto in 1826

Explanation:

Answer:

Johann Tobias Lowitz and in 1796

Explanation:

Use the following data to answer the next two questions. ​

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Answer:

14.3 is answer

Explanation:

In vertebrates, one way this stability is accomplished is through the actions of

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Answer:

Skeleton and the skeletal system

Explanation:

Please help with this question

Answers

Answer:

D

Explanation:

According to this diagram, which number(s) most closely represents the process of photosynthesis?

1, 2, 5, or 6?

Please help!

Answers

According to this diagram, 1, 2, and 5 numbers most closely represent the process of photosynthesis.

What is photosynthesis?

Photosynthesis is a chemical process carried out by plants that generate biomass by using light energy.

This process (photosynthesis) is known to be carried out by producers which are used as food by herbivores.

In conclusion, according to this diagram, 1, 2, and 5 most closely represent the process of photosynthesis.

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HURRY IM TIMED!!!
The surface area exposed the
a. less, faster
b. more, slower
the weathering occurs.
C. less, no change in rate
d. more, faster
Please select the best answer from the choices provided

Answers

Answer:

D.  more, faster

Explanation:

The more surface area exposed the faster the weathering occurs.

What are 3 differnt types of characteristics of cell membrane

Answers

answer - interval proteins - peripheral proteins and lipid anchored proteins

Why can aquatic animals not survive on land

Answers

Answer:

This is the answer to ur question

3 Select the correct answer. Rachel’s parents are building a new house for their family. They want to design their house to minimize pollution. Which option will help them achieve their goals? A. Install a garbage disposal in the kitchen sink instead of throwing out garbage. B. Use solar panels for heat energy instead of burning fossil fuels. C. Use bright paint colors on the walls instead of natural tones. D. Build a large house instead of a small house.

Answers

B. Use solar panels for great energy instead of burning fossil fuels

(Brainliest please)

Which is the correct description for sensory
receptors?

Answers

Answer:

Explanation:

A sensory receptor is a structure that reacts to a physical stimulus in the environment, whether internal or external. It is a sensory nerve ending that receives information and conducts a process of generating nerve impulses to be transmitted to the brain for interpretation and perception.

Match the definition to the term:
a substance that provides energy as the result of a chemical change (burning)
a) hydroelectric power
b) fossil fuel
c) biomass fuel
d) B and c

Answers

The  hydroelectric power is produced by the kinetic energy of water moving over a waterfall or dam. Hence the correct option is A.

What is hydroelectric energy?

Hydroelectric energy is also known as hydroelectric power or hydroelectricity, is a form of energy that harnesses the power of water in motion such as water flowing over a waterfall  or a pressure flowing river as in mountainous regions to generate electricity.

Hydropower currently accounts for 37% of total United States renewable electricity generation and about 7% of total United States electricity generation.

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Name an organ that is composed primarily of epithelial tissue.

Answers

Answer:

The skin on a persons body

Question 1

The adrenal cortex releases
during stress.

Adrenaline
Endorphins
Oxytocin
Cortisol

Answers

Answer:

Adrenaline

Explanation:

Adrenaline is released into the bloodstream by the Adrenal Cortex during stress.

Fill in the blanks in the skeletal diagram.

Answers

The labeled parts of the human skeleton shown are found in the attachment.

What are the parts of a human skeleton?

A skeleton is a structural framework that holds most animals' bodies in place.

There are two types of skeletons namely the exoskeleton and the endoskeleton.

The axial skeleton and the appendicular skeleton are the two components of the skeletal skeleton. The skull, vertebrae, ribs, and sternum make up the axial skeleton, which is the body's main structural component. The bones in the extremities make up the appendicular skeleton.

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a tricycle covers a distance of 2700 m in 30 minutes. compute for its speed.​

Answers

for this, there isn’t a specific measure of speed, so lets just use meters per minute! (since it is the unit of both).

to get meters per minute, we need the minute to be 1. so divide 30 to both sides, it will get you 90m per minute.

answer: 90m per minute

4. While blood contains glucose, potassium, albumin, and chloride molecules, a normal urine sample contains
only potassium and chloride molecules. Why do you thing this is so? (1 mark)

Answers

Glucose and albumin (a protein) are too big to pass through the glomerulus therefore they should not be found in normal urine while potassium and chloride molecules are small enough to be filtered through the glomerulus, where it can either be reabsorbed back into the blood or go through the entire tract and be excreted with urine.

2. The city of Elmhurst was having problems with people dumping pollution into their local river. To help with this problem, the mayor mailed pamphlets to all the citizens showing ways they could help protect the local watershed. The pamphlets were mailed each year beginning in 2005. The graph below shows how the number of stream pollution incidents changed before and after the pamphlets were mailed. What is one conclusion you can make based on the information in the graph?\

Answers

Answer:

Option C. is correct.

I know this because the amount of pollution incidents is represented by higher numbers, so if it went down so dramatically, that must mean the pamphlets caused less people to dump pollution into the water.

All matter is made up of subatomic particles that contain atoms.

Answers

Yeah that would be true

& What value is returned from this command? Math.floor(5.89) A. 5.9 B. 5.0 C. 6.0 D. This code produces an error​

Answers

Answer:

B

6.0 because first approximate 5.8 to 5.9 then approximate 5.9 to 6.0

2. The city of Elmhurst was having problems with people dumping pollution into their local river. To help with this problem, the mayor mailed pamphlets to all the citizens showing ways they could help protect the local watershed. The pamphlets were mailed each year beginning in 2005. The graph below shows how the number of stream pollution incidents changed before and after the pamphlets were mailed. What is one conclusion you can make based on the information in the graph?\

Answers

Answer:

The pamphlets caused less people to dump pollution into the water.

Incase you are wondering how I got this answer, there is a repost of this question with the actual graph and answer choices.

What percentage of babies have Brown and Blue eyes?

Answers

blue=2%

Explanation:

The explanation by the paragraph it is said (to find the percent divide the total number of blue-eyed by the total number of babies born) 20÷10 =2 . The answer is 2%

Answer:

In fact, a 2016 Stanford University study involving 192 newborns found that nearly two-thirds of them were born with brown eyes, while only about 1 in 5 babies arrived with blue eyes. The Stanford researchers also noted, however, that the majority of babies in the study born with blue eyes were Caucasian

Explanation:

I WILL GIVE BRAIEST PLS HELP 5 B LANGUAGE ARTS Module 11 / Proof and Edit 1. What order should you use to list your sources? the order in which they appear in your report. the order in which they were published. alphabetical order by author's last name.​

Answers

Answer:

alphabetical order by author's last name.​

Explanation:

Work citation page is alphabetized by author last name.

Other Questions
Which statements are true about effective summaries?Select all correct answers.They are written by the same author as the story.They include only key details from the story.They identify major themes from the story.They describe events in the same order as the story. Explain why it is wise to memorize your social security number. easy points.......... What is 10% of 79,775 What are the solving steps and twosolutions to this equation using the quadratic formula?-x^2-10x-21=0 Identify the measure of arc AD. please help me solve this solve the triangle round to nearest tenth Fill in the blanks in the following sentences using the words in parentheses. Remember to include the appropriate pronouns where necessary.7. Excusez-moi. Ou est _____? (bread department)8. Aprs avoir ajout tous les ingrdients, ______. (stir well)9. Je vais donner ____ ma famille d'accueil. (flowers)10. Tu as la grippe? ____. (Get well.) Where should you list the sources you used to write your report?in a bibliography at the end of your reportat the beginning of your report, right beneath the titleon a small note card that you turn in with your report Please help.fiona asked 150 students to select their favorite fruit and then recorded the results in the bar graph below. fiona will ask another 45 students to select their favorite fruit. based on the information in the bar graph, how many more students from the next 45 are likely to select oranges rather than bananas their favorite fruit? The orbit of a planet around the sun is not circular; it is an ellipse withthe Sun at one focus. The aphelion of a planet is the greatest distancefrom the sun and the perihelion is its shortest distance. The meandistance of a planet from the sun is the length of the semimajor axis ofthe elliptical orbit. The perihelion of Pluto is 4551 million miles, and thedistance from the center of its elliptical orbit to the sun is 897.5 millionmiles. Find the aphelion of Pluto. What is the mean distance of Plutofrom the Sun? Write an equation to represent the orbit of Pluto aroundthe Sun. What is the area of a square that has a length of x-5? What is the area of this right triangle?30 mm39 mm60 mm78 mm What is the sum of 7 1/12 + 8 1/12 + 3 1/12? Select the correct answer.What is technology?A.the ability to perform a task in a short perlod of time using little to no energyB. the ability to perform a task using a a full range of motion in a short perlod of timeC. the production of new machines as a result of processes using science and knowledge. D. the interaction among people, companies, and governments of different nationsResetNext $6300 at 5% annual rate, compounded semi- annually, for 2 years The Bill of Rights states that any powers not outlined in the Constitution as belonging specifically to the national government belong to the states and to the people. What is this an example of? Fear of unfair trials The limited power of the national government Freedom to protest peacefully The freedom of the national government to take more power jackson bought 3 pounds of candy for 9.60. What was the price of this candy in cents per ounce? PLS HELP Consider the aquatic phosphorus cycle. Phosphorus is the limiting nutrient for aquatic organisms. Decomposition naturally returnsphosphorus to the aquatic cycle, but phosphates from fertilizers, sewage and detergents can cause pollution in lakes and streams.Over-enrichment of phosphate in freshwater can lead to which, when they die and decay, leads toA)a lower pH; acidificationB)algal blooms; eutrophicationturbidity; decreased photosynthesisD)increased decomposition; poor growing conditions Use the given values of n and p to find the minimum usual value - 20 and the maximum usual value +20. Round your answer to the nearest hundredth unless otherwise noted. n=713, p= 4/5