from what stucture does a pollen grain develop​

Answers

Answer 1

Answer:

Anther

Explanation:


Related Questions

In DNA and RNA, what “codes for amino acids”?


A. combinations of nucleotides

B. combinations of proteins


C. combinations of strands

D. combinations of sugars

Answers

Answer:

The answer is A

Explanation:

The gene sequence inscribed in DNA, and in RNA, is composed of tri-nucleotide units called codons, each coding for a single amino acid. Each nucleotide sub-unit consists of a phosphate, deoxyribose sugar and one of the 4 nitrogenous nucleotide bases grouped into 2 categories, purine and pyrimidine.

Answer:

i think its b

Explanation:

Which of the following uses protein channels to carry large molecules and ions across the membrane without energy?

Answers

Membrane protein im pretty sure that’s the answer

Answer: Simple Diffusion Across the Cell (Plasma) Membrane: The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down their concentration gradient, by simple diffusion.

Explanation: Large molecules like glucose or carbohydrates use proteins to help move across cell membranes. Some of the membrane proteins have carbohydrate Chains attached to help cells in recognize each other and certain molecules

did this help

What do you think the term "ecological footprint" means?

Answers

Answer:

biologically productive land and sea area

Explanation:

A rocket is launched from the launch pad at a speed of 700 km/hr. How far will the rocket have traveled after 1.0 hour?

Answers

.......I think 42000km

I really need someone to explain the 6 stages of mitosis

Answers

Answer:

Prophase; when the nuclear envelope breaks down,

prometaphase; the physical barrier that encloses the nucleus, called the nuclear envelope, breaks down

metaphase; The chromosomes line up across the center of the cell

anaphase; The centromeres split

telophase; The chromosomes begin to stretch out and lose their rod-like appearance

All deserts have high daytime temperatures.


Please select the best answer from the choices provided

T
F

Answers

Answer:

False, I got it right on my test

Answer:

False

Explanation:

Fun fact: What most people know is that Antarctica is cold. What most people don't know is that due to its low rainfall, it's considered a desert.

Learn more here: https://www.activewild.com/is-antarctica-a-desert/

Eukaryotic cells are germs, viruses, or bacteria ... true or false explanation

Answers

The answer is true (:

The process that describes the body's natural physiological response to stress is known as the
A. general survival response
B. general adaptation syndrome
C. physiological adaptation response
D. physiological survival syndrome​

Answers

Answer:

General Adaptation Syndrome (GAS)

Explanation:

It is a theory that describes the stages of physiological changes that a body experiences when under stress. The three stages in order are:

The alarms stage

The resistance stage

the exhaustion stage

(This was paraphrased in my own words so that it can be paraphrased again by you)

The process that describes the body's natural physiological response to stress is known as the general adaptation syndrome.

What is stress?

It is either emotional or physical. Stress is any event or thought that generates the feeling of irritation, anger, or nervousness.

How does the body respond to stress?

The body responds to stress with a physiological response that is known as the "general adaptation syndrome."

How many stages are there to the general adaptation syndrome?

It has three stages:

alarm reaction stage.resistance stage exhaustion stage.Who proposed this theory?

It was proposed by Hans Selye.

To learn more about general adaptation syndrome here,

https://brainly.com/question/1444902

#SPJ2

In your own words, explain why an earthworm cannot survive if it were cut in half. PLEASE HURRY​

Answers

It cannot survive because an earth worm will not become 2 new worm. The head of the worm may survive and regenerate a tail. But if original tail of the worm may not survive because it will not be able to grow a new head or the rest of its vital organs and it will die. I hope this helps. :)

What Canal in which the unfertilized egg pass through for
menstruation or implantation.

Answers

Answer:

isn't it called a fallopian tube?

A child pulls a toy across the floor. What is the equal and opposite force for the force of the child pulling forward on the toy as described by Newton's third law? Choose 1 answer: Choose 1 answer: (Choice A) A Ground's normal force pushes up on the child's feet. (Choice B) B Ground's friction pushing on the toy (Choice C) C Child's feet's friction pushing on the ground in the opposite direction (Choice D) D Toy pulls on the child in the opposite direction

Answers

Answer:

D. Toy pulls on the child in the opposite direction

Explanation:

Newton third law of motion states that for every action, there is an equal and opposite reaction. This means that whenever an object 1 exerts a force (action force) on another object 2, object 2 exerts a force (reaction force) of equal magnitude but opposite direction on object 1.

According to this question, a child pulls a toy across the floor. Based on Newton third law described above, the toy will pull the child with an opposite force that is equal in magnitude. Hence, the equal and opposite force is: Toy pulls on the child in the opposite direction.

Complete the half reactions for the cell shown here, and show the shorthand notation for the cell by dragging labels to the correct position. the electrode on the left is the anode, and the one on the right is the cathode.

Answers

The question is incomplete, the complete question is;

complete the half reactions for the cell shown here and show the shorthand notation for the cell by dragging labels to the correct position. The electrode on the left is the anode, and the one on the right is the cathode.

in the left side there is a solution of Pbcl2(s) and it contains the elctrode pb and on the right side there is solution of AgCl(S) which contains the electrode Ag. There is inverted glass tube with Kcl (aq) on the left and and Kcl(aq) on the right.

Anode half-reaction:

Blank + 2Cl^- equilibrium arrow yields Blank + 2e^-

Cathode half reaction:

Blank +2e^- equlibriums arrow yields Blank + 2Cl^-

Shorthand notation: Please provide.

Answer:

Explanation:

Let us remember that oxidation occurs at the anode while reduction occurs at the cathode. This will guide our work here. The Pb(s)/Pb^2+(aq) is the anode while the Ag^+(aq)/Ag(s) is the cathode

Anode half-reaction:

Pb(s) + 2Cl^- ⇄  Pb^2+(aq) + 2e^-

Cathode half reaction:

2Ag^+(aq) + 2e^- ⇄  2Ag(s) + 2Cl^-

Overall reaction equation;

Pb(s) + 2Ag^+(aq)  ⇄ Pb^2+(aq) + 2Ag(s)

Shorthand notation;

Pb(s)/Pb^2+(aq)//Ag^+(aq)/Ag(s)

(Please leave an answer if you know the correct one!) I'm unsure of my answer, if you'd like to...could you please assure me of my answer?
Or, if my answer is wrong correct me and explain why! ^^ Thank you! I'll try to help you in return!

Answers

Answer:

D) The number of mitochondria has decreased due to long period of rest

You are correct :)

Explanation:

The basketball player requires energy so remember that the mitochondria is the powerhouse of the cell (so it produces energy).

Which types of organisms use alcoholic fermentation ?

Answers

Answer:

Ndkd

Explanation:

WILL GIVE BRAINLIEST!
4. How does an increase in the human population affect the use of natural resources? (1 point)

O An increase in the human population does not affect the use of natural resources,
O An increase in the human population means more natural resources will be used.
O An increase in the human population means that fewer natural resources will be used.
O An increase in the human population means that natural resources will be more stable.

Answers

Answer:

Number 2

Explanation:

The more people, the more resources that will need to be used. Hope this helps :)

Answer: B)An increase in the human population means more natural resources will be used.

Explanation: The more people there are on the planet, the more things people will need and therefore increasing the amount of resources used.

In plant cells, cytokinesis occurs when

Answers

Answer:Cytokinesis is the process whereby the cytoplasm of a parent cell is divided between two daughter cells produced either via mitosis or meiosis. ... Cytokinesis begins in anaphase in animal cells and prophase in plant cells, and terminates in telophase in both, to form the two daughter cells produced by mitosis

Explanation:give brainlest

PLS HURRY
Which organization informs hospitals, clinics, and other health care settings
about new asepsis techniques?
A. World Health Organization
B. Centers for Disease Control and Prevention
C. U.S. Department of Health and Human Services
D. Occupational Safety and Health Administration

Answers

Answer: It's Centers for Disease Control and Prevention

Explanation:

If I just ate 300,000 calories what is another way of saying that
A. 300 Calories
B. 3,000 calories
C. 300,000,000

Answers

Answer:

I think A. 300 Calories because 300000 to IT round about 300 calories

Adult males require between 2,000 and 3,000 calories per day, whereas adult females require between 1,600 and 2,400 calories daily. Thus, option A is correct.

What is the role of calories in daily life?

Keep us alive and make sure our organs are functioning properly, our bodies require energy. We give our bodies energy when we eat and drink.

Our daily activities, such as breathing and jogging, cause our bodies to expend that energy.

A calorie deficit is necessary for weight loss, but how much of one depends on your age, weight, health, and goals. It's frequently advised to reduce daily caloric intake by roughly 500 calories.

However, a certified dietician can help you create a personalized plan if you're thinking about losing weight.

Therefore, 300 Calories is another way of saying that 300,000 calories.

Learn more about Calories here:

https://brainly.com/question/14299884

#SPJ2

Which of the types of cells in T. adhaerens contain cilia (choose that all apply)
A cover cells
B fiber cells
C cylinder cells
D gland cells

Answers

Answer:

B.fiber cells

Explanation:

cilia are lil eyelash kind of bit on cells. fiber cells have them.

The types of cells in T. adhaerens that contain cilia are fiber cells. The correct option is B.

What is a cell?

The cell is the basic unit of life. The cell is the smallest unit of which the living organisms are made up. The cell contains all the organelle that perform the vital functions of the body.

T. adhaerens is a multicellular animal that is made up of fiber cells, the ones that contain cilia.

Thus, the correct option is B fiber cells.

Learn more about the cell, here:

https://brainly.com/question/6664025

#SPJ5

What is the last step of the scientific method.

1. Problem/Question
2.Analyze Data
3.Hypothesis
4.Conclusion

Answers

Search it up and put it into your own words that will help
conclusion is the last step of the scientific method

i forgot how to do this...​

Answers

Answer:

I believe the answer is a

Its easy! If right will give brainlist! Don't overthink..:) Just answer

The virtual image changes with the position of the mirror to the eye when the mirror is..............?
Fill in the blanks

Answers

Answer:

When the mirror is inside the focal point..?

how many blood vessels leave the heart?

Answers

Answer:

There are 5 great vessels that go into the heart and out.

Explanation:

So looking back to the lesson from my bio class, we learned  that there are 5 great vessels. The superior and inferior cava. The pulmonary artery, the pulmonary vein, and the atora.

I hope this helps!

Noriya~

50 points, Brainilest, 5 star rating
Don't use me for points or I will report you
What number go in each circle ?
Tell me what number go in all the circles.

Answers

Answer:

ur picture is really small and blurry

Explanation:

can u tell me wat the words in the circle say

If the DNA molecule contains 32% thymine, then what would be the creator of the cytosine?

PLEASE HELP!!!!!

Answers

Cytosine (C) is one of four chemical bases in DNA, the other three being adenine (A), guanine (G), and thymine (T). Within the DNA molecule, cytosine bases located on one strand form chemical bonds with guanine bases on the opposite strand. The sequence of four DNA bases encodes the cell's genetic instructions.

Complex sugars - define and name two examples

Answers

Answer: complex sugars are sugar molecules that are strung together in long, complex chains. Ex.) beans, whole grains

Explanation:

Problem A
A yellow purebred dog is crossed with a a black hybrid dog
(black is dominant)

Answers

This should be the answer you’re looking for

2.

How are plays different from novels?

Plays have much less description.

Plays have more complicated plots.

Plays have fewer characters.

Plays have a lot less action.

Answers

Answer:

plays have much less description

Explanation:

hope this helped :)

if im wrong i apologize :(

At a yearly check-up, Michael’s doctor is alarmed because he identified a tumor on Michael’s lung. Without further testing, Michael’s doctor does not know if this particular tumor is cancerous or not. Which statement best describes how the tumor formed in Michael’s lung.
A.The cell possesses double nuclei
B.Radiation exposure
C.Uncontrolled cell division
D.Spending prolonged time in S phase

Answers

Answer:

c

Explanation:

tumors are made from uncontroled tussue cell division

Will the hurricane gain strength or lose strength if it moves from warm water to cold water? Explain in 3-4 sentences

Answers

Answer:

Explanation:

As long as the base of this weather system remains over warm water and its top is not sheared apart by high-altitude winds, it will strengthen and grow. More and more heat and water will be pumped into the air. The pressure at its core will drop further and further, sucking in wind at ever-increasing speeds. Over several hours to days, the storm will intensify, finally reaching hurricane status when the winds that swirl around it reach sustained speeds of 74 miles per hour or more.

:'(

Other Questions
Mia looked at a graph showing average global temperatures. She noticed that the average temperatures have risen abruptly over the past several decades. This indicates that global warming is occurring at a fast rate. What additional pieces of evidence do scientists use to support the idea that global warming is happening?Question options:the amount of greenhouse gases leaving the atmosphere and increases in amounts of sea icethe greenhouse effect and reductions in sea levelsgreenhouse gas concentrations, decreases in amounts of sea ice, and increases in sea levelsocean temperature changes, greenhouse gases concentrations, and harmful emissions reductions What happened on September 11, 2001?Al-Qaeda ended American involvement in Middle Eastern countries.The US military found Osama bin Laden, the leader of al-Qaeda.The United States invaded Afghanistan to locate a terrorist group that was hiding in the country.The terrorist group al-Qaeda hijacked four American airplanes, two of which were flown into the World Trade Center in New York City. someone help me please i dont understand 23.82600 in standard form Taymor's production of The Tempest is an example of the style of Realism; this is illustrated by the fact that they use real water on the stage. A dynamic stretch is_____. The maximum oxygen uptake is known as the __________. 1)Which decimal represents the portion that is NOT shaded?A)0.003B)0.0300.3D)3.0 Fill in the blanks for each statement.how much shaved ice was used to make the lemon ice cone, assuming the cone is completely full? (A) The amount of shaved ice inside the cone is ______ cubic inches.(B) The amount of shaved ice on top of the cone is ______ cubic inches.(C) The total amount of shaved ice used to make the cone is ______ cubic inches. convert 3 4/5 into a improper fraction with steps please please help picture included:) helpppalgebraaaaa what is sum of polynomials Write a description for Minutemen. The identity of the element shown in the model above is determined by the number of - The elements on the Periodic Table of the Elements are arranged in order of increasing Suppose y varies directly with x. When x is 2, y is 20. What is x when y is 50 Find the measure of the indicated angle:A) 68C) 45B) 47D) 940 What are the roles protein plays on living system? Explain it with 3 to 5 sentences ( THANK YOU BTW) I need help with this, I can't figure it out. What is the second most abundant element on earth and seems to be very important in biological processes such as oxygen transportation in the body and cellular respiration