What is the atomic number of zirconium?


Answers

Answer 1

Answer:

40

Explanation:


Related Questions

The biomolecule described below is a _______________.


a. lipid


b. monosaccharide


c. carbohydrate


d. protein

Answers

Answer: it’s lipid

Explanation:

The biomolecule described below is a lipid because they are large and non-polluting molecules.

What is the main function of lipids?

Lipids are responsible for providing energy, being in the form of fat that our body stores the excess energy we consume through food to use in times of need.

They are substances whose main characteristic is the insolubility in polar solvents and the solubility in organic solvents (nonpolar), presenting a hydrophobic nature, that is, aversion to the water molecule.

Lipids have unique characteristics that allow them to be quickly identified, for example because they are large and non-polluting molecules.

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Describe how plant cells keep themselves rigid.

Answers

Answer:

Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size.

Explanation:

Its right

Plant cells should be treated as rigid due to the cell wall.

The information regarding the cell wall is as follows:

It is the envelope that is treated as the extracellular and present in all types of vegetables having few bacteria, fungi, etc. The composition should be changed as the organism habit. Also, the cell wall should be responsible for the plant cells rigidity.

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. Think of a type of cell that would frequently divide

Answers

Answer:

mostly any type of cell would but i think some of them are skin cells, the reason is because as you keep growing the body need to produce more skin cells also since you can get scratches here and there.

Explanation:

hope this helps!! oh and also hair cells

What is the movement of structure high to low using a carrier protein reaching equilibrium?
~Simple diffusion
~Facilitated Diffusion
~Osmosis

Answers

Answer: Facilitated Diffusion

Explanation: Facilitated diffusion is a type of passive transport in which substances move across the cell membrane through helper proteins. Because it is a form of passive transport, it requires no energy to occur. In diffusion, substances move from areas of high concentration to areas of low concentration.

what conditions are important for plants to be able to grow

Answers

Answer:

sunlight, soil, water

Explanation:

Look at the images of different rocks.
Which two rocks have a fine-grained texture?

1 and 5
2 and 3
3 and 5
4 and 1

Answers

Answer:

1 and 5

Explanation:

Image 1 and 5 actually show fine-grained textures of rocks.

Fine-grained textures actually indicates that magmas that are formed at or near the earth's surface cool rapidly. It's known that when magmas cool fast, they prevent very large crystals from growing. When hand samples of fine-grained rocks are taken, they appear homogeneous throughout the rock.

Answer:

1 and 5

Explanation:

The chemical reaction equation of photosyntesis is shown here: 6CO + 6HO + light CHO+ 6O What information is not given in this equation. It does not show if the reaction is reversible. It does not show the reactants needed for the reaction. It does not show that photosynthesis consists of many separate steps. It does not show the number of molecules required to produce glucose.

Answers

Answer:

It does not show that photosynthesis consists of many separate steps.

Explanation:

Photosynthesis is the metabolic process whereby plants and other certain organisms synthesize their food (glucose) using sunlight. The general chemical equation of the photosynthetic process is depicted below:

6CO2 + 6H2O + light --> C6H12O6 + 6O2

This equation gives a general breakdown or a summary of what occurs in the process of photosynthesis, however, it is not that simple. Photosynthesis involves MANY SEPARATE STEPS that the equation is not showing. For example, the equation does not show that photosynthesis occurs in two stages namely: light-dependent phase and light independent phase.

Use the drop-down menus to identify the scientists who match the descriptions below.


found that animals are composed of cells

found that plants are composed of cells

looked at cork through a compound microscope

declared that all living cells can only come from other living cells

called living cells “animalcules

Answers

The answer is online search it up

Answer:

the answers are;

1.  Theodor Schwann

  found that animals are composed of cells

2.  Matthias Schleiden

  found that plants are composed of cells

3.  Robert Hooke

  looked at cork through a compound microscope

4.  Rudolph Virchow

  declared that all living cells can only come from other living cells

5.  Anton van Leeuwenhoek

  called living cells “animalcules”

hope this helps! plz put me as the brainiest!

Which example is classified as a body fossil?

A) footprint of a stone-age individual

B) ancient shark vertebra

C) fossilized bird droppings

D) a worm trail

Answers

Answer:

A

Explanation:

Answer:

ancient shark vertebra

Explanation:

why didn't Darwin see creatures living in the ocean?

Answers

Answer:

Cuz he blind

Explanation:

Active transport occurs in cells, for example, when the Na-K pump is at work. Any process that involves active transport most often involves the

Select one:
a. movement of molecules without any predictable pattern.
b. movement of molecules from a lower concentration to a higher concentration.
c. movement of molecules from a higher concentration to a lower concentration.
d. movement of molecules from a lower to higher concentration and then back to the point of origin.

Answers

It's a
Because active transport occurs against concentration gradient, hence it's unpredictable!

Which of these are alive?
A).potato.
B).potato chips.
C)gym socks.​

Answers

Answer:

A) potato

Explanation:

A I believe idek this is a weird question

I am trying to dissolve popcorn butter and milk into water. I notice the milk
dissolves, but the popcorn butter does not. Why is this? *

Answers

Answer:

Because butter is an oil-like substance. Water is a combination of hydrogen and oxygen, oil on the other hand is not. For the two to mix the oil would have to break the hydrogen chain but that is not possible because then the water won't be water.

So most fats repel water, just think about it being hydrophobic :)

Hope that helps and have a great day!

Anyone like crossword puzzles?!

Answers

1. core!!!!!!!!!!!!!!!!!!!!!!!!!!

One explanation for why polar regions are colder than equatorial regions is that

Answers

Answer:

Sunlight strikes at an different angle

Explanation:

Which of the following reactions provide the chemical energy for most cell functions by releasing energy?

a. ATP bonds phosphate yielding ADP
b. ADP bonds phosphate yielding ATP
c. ATP loses phosphate yielding ADP
d. ADP loses phosphate yielding ATP

Answers

Not sureAnswer:

Explanation:not sure

In a food web, the arrows point from one organism to the organism it eats. True or false

Answers

Answer:

False

Explanation:

In a food wed the arrows point to the animal that will eat the organism it's pointing away from

This diagram shows DNA fingerprints for a child and four adults.




Which adult is most likely a parent of the child?

Answers

Answer:

probably parent 4 but I could be wrong bc look at the bottom of the scans the match kind of.

Explanation:

Answer: Adult 4

Explanation: There patterns match they are similar. :)

1. Which limiting factor(s) in this lab simulation are biotic? The biotic factor is alligator and the mosquito. 2. Which limiting factor(s) in this lab simulation are abiotic? 3. Which limiting factor impacted the cricket frog population the most? Use evidence to support your answer.

Answers

Since, the question is incomplete the complete question is as follows:

Limiting Factors Lab Report Instructions: In this lab, you will investigate how limiting factors affect a population of cricket frogs in the Florida Everglades. Your scientific inquiry will focus on three limiting factors: food, predators, and pollution. Complete the following lab report to record your observations as you move through the simulation.

1. Which limiting factor(s) in this lab simulation are biotic? The biotic factor is alligator and the mosquito. 2. Which limiting factor(s) in this lab simulation are abiotic? 3. Which limiting factor impacted the cricket frog population the most? Use evidence to support your answer.

Answer: 1. predator

2. food and pollution

3. predator

Explanation:

1. The predator is the biotic limiting factor in this simulation because the predator can feed on the population of cricket frogs, and will reduce their population size.

2. The food and pollution are the abiotic limiting factors as they are non-living. If the cricket frogs do not get food they will die and the pollution in the air or water can reduce their life span.

3. The predator population affected the cricket population the most as they were available as a good source of food for the predators.

Answer: 1. predator 2. food a pollution 3. also predator

Explanation: I don't really have an explanation

Please help me i don’t understand this

Answers

Answer: So this is like a food chain chart. The animals at the top are one top of the food chain and do not get eaten by anything; they dont have any predators. This chart goes from bottom up. So the plants have arrows pointing to animals. Those animals that the plants are pointing to are the animals that eat that plant. And then those animals point to another animal higher on the chain and those animals that are higher eat the animals that are lower than them and have the arrow pointing at them. So the snake is pointing to the owl because the owl eats the snake. The frog is pointing to the snake because the snake eats the frog. And the list on the side of the chart is just a list of different kinds of animals. I dont remember what each of them are so you are going to have to find out what element is missing.

Explanation:


Which molecule is the most common/plentiful molecule in our cells?

Answers

Answer:

water

Explanation:

Cells are composed of water, inorganic ions, and carbon-containing (organic) molecules. 

Replicate the following strand of DNA:
Original DNA-- A T G A A C C A T T C A G T A T G G

Answers

Answer:

Original DNA:               ATG AAC CAT TCA GTA TGG

Complimentary DNA:   TAC TTG GCA AGT CAT ACC

mRNA molecule:          AUG AAC CGU UCA GUA UGG

AMINO ACID:               Methionine (Start) - Aspargine (Asn) - Arginine (Arg) - Serine (Ser)- Valine (Val) - Tryprophan (STOP)

2nd template:

Original DNA:               ATG  GGT   CTA  GCG  AAA  GAT

Complimentary DNA:   TAC  CCA  GAT  CGC  TTT   CTA

mRNA molecule:          AUG  GGU CUA  GCG  AAA  GAU

AMINO ACID:               Methionine (Start) - Glycine (Gly) - Leucine (Leu) - Alanine (Ala) - Lysine (Lys) - Apspartic Acid (Asp)

Explanation:

When you are forming the DNA complimentary strand you need to remember that they come in base pairs, and each base pairs up with a specific base. In the case of DNA the base pairs are the following:

A - T ; T - A

C - G; G - C

So:

For every A, its complimentary is T. For every T, it's complimentary is A.

For every C, it's complimentary is G. For every G, it's complimentary is C.

So in the case of your 1st DNA template:

Original DNA:                ATG AAC CAT TCA GTA TGG

Complimentary DNA:   TAC TTG GCA AGT CAT ACC

During transcription however, mRNA is formed. RNA does not have thymine (T), but Uracil (U) instead. So the base pairs would be different in the case of Adenine(A), thymine and Uracil.

A - U; T - A

C - G; G -C

So:

For every A, it's complimentary is U. For every T, it's complimentary is A.

For every C, it's complimentary is G. For every G, it's complimentary is C.

Going back to your 1st DNA template:

Original DNA:               ATG AAC CAT TCA GTA TGG

Complimentary DNA:   TAC TTG GCA AGT CAT ACC

mRNA molecule:          AUG AAC CGU UCA GUA UGG

Duing translation, tRNA brings the amino acids to the mRNA strand. There is a specific RNA codon sequence that codes for a specific AMINO ACID. These codons are 3 bases grouped together. You can use the table attached to see the amino acid each combination.

Amino acids are the building blocks of protein. The DNA templates determines the type of protein that will be made. The tRNA brings the amino acid to the mRNA template. Then it drops the amino acid off, which will bond with the next amino acid coded to attach to it.

So if you take the first mRNA codon AUG, you can see in the table that it codes for Methionine, which is a start codon, meaning this is the start of a new protein. It will then attach to the next amino acid that codes for the next codon which is AAC that codes for Aspargin. They will continue until it reaches a STOP codon, which means it would be the end of that protein.

The replica of the following strand of DNA is:T A C T T G G T A A G T C A T A C C .

What is DNA ?

DNA  is a hereditary material which is present in human beings as well as all other living organisms.  Every cell which is present in an organism's body has DNA  which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.

Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.

DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule  and a phosphate group. A base, phosphate sugar are together called as nucleotides.

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where can the fewest h+ ions be found on the pH scale, and the fewest OH- ions

Answers

pH Scale. Based on the ionization of water into H+. ( hydrogen ions) and OH- (hydroxide ions). Page 4. pH Scale. Ranges from 0 to 14. 7 is neutral. 0 is highest in H+ ... 14 is the lowest [H+] and highest [OH-].

The lowest [tex]H^+[/tex] concentration on the pH scale would be 14 while that of the [tex]OH^-[/tex] concentration would be 0.

pH Scale

The pH scale ranges from 0 to 14 with 0 being the most acidic and 14 being the most basic or alkaline.

The more the  [tex]H^+[/tex] concentration of a substance, the lower the pH, and the more the [tex]OH^-[/tex] concentration, the higher the pH.

Thus, at the lower extreme of the pH scale, the concentration of [tex]OH^-[/tex] is fewest, and at the higher extreme, the concentration of  [tex]H^+[/tex] is fewest.

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amino acids are linked together to make proteins by removing a molecule of in a process called

Answers

Answer:water, dehydration synthesis

In a full Sentence: Amino acids are linked together to make proteins by removing a molecule of water in a process called dehydration synthesis .

Atoms of the same element that have different numbers of neutrons are called ____.

A) isotopes
B) compounds
C) neutrino elements
D) molecules

Answers

A! Isotopes! I hope this helps! :)

Recently in Antarctica, a penguin with all black feathers was
discovered. This trait had never been seen before. What is
the likely source for this "new" trait?

Answers

The penguin in question has a rare genetic mutation called melanism, which makes skin, fur, and feathers black due to a high concentration of the pigment melanin. It's basically the opposite of albinism, which is caused by a lack of pigment.

Which of the following is NOT a function of the catalyst?

Answers

Answer:

the correct Question is B-

Explanation:

A catalyst increases the rate of a chemical reaction by decreasing activation energy. So I used the power of marking out the ones i knew were incorrect. Hope this helps.

What organ in the circulatory system is made up of cardiac tissue?
O The stomach
O The lungs
O The skin
O The heart

Answers

Answer:

the heart

Explanation:

Cardiac muscle tissue is only found in your heart, where it performs coordinated contractions that allow your heart to pump blood through your circulatory system.

Compare and contrast sexual and asexual reproduction, including the advantages and disadvantages of each process.

Answers

Answer:

What are the advantages and disadvantages of both asexual and sexual reproduction?

Comparison chart

Asexual Reproduction Sexual Reproduction

Advantages Time Efficient; no need to search for mate, requires less energy Variation, Unique., organism is more protected

Disadvantages No variation - if the parent has a genetic disease, offspring does too. Requires two organisms, requires more energy

Answer:

Prokaryotes and eukaryotes vs. only eukaryotes

Mitosis and binary fission vs. meiosis

Both forms of reproduction

Two vs. four cells produced

Diploid vs. haploid  cells produced

Advantages or disadvantages of each

Explanation:

The energy for cellular respiration comes from the glucose that was made during photosynthesis

Answers

Answer:

True

Explanation:

Glucose and oxygen that are made with the process called photosynthesis are then used as starting products for cellular respiration. This cellular respiration later makes carbon dioxide and water are then in combination with sunlight the starting products for new photosynthesis.

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Let s ( t ) = 6 t 3 9 t 2 360 t be the equation of motion for a particle. Find a function for the velocity. what else is language besides a tool. give me examples and explanation Read the sentence below and answer the question that follows.Many conflicts occurring in the Middle East today can be directly linked to how the land was partitioned after World War I.The word underlined in the sentence above can best be defined as __________.A.the act of supporting the spread of Islamic values and belief into all aspects of a societyB.a formal decision that is made by a group of people and carried out with authorityC.a feeling of dislike or anger cause by the sense of having been poorly treatedD.a division or separation of something into portionsPlease select the best answer from the choices provided what is the full form of www? t - 27 = 4tWhat equals t The upper and lower quartiles are the _______________ of each half of the data.Group of answer choicesmeannone of the abovemodemedian Li Na is going to plant 636363 tomato plants and 818181 rhubarb plants. Li Na would like to plant the plants in rows where each row has the same number of tomato plants and each row has the same number of rhubarb plants. What is the greatest number of rows Li Na can plant? Destiny needs a new coat for the winter and she found one at Old Navy for $48.88. The sales tax is 8%. How much will she pay for the sales tax? NARead the passagefrom Litle WomenJe heard Amy panting after her run, stamping her feet and blowing on her fingers, as she tried to put her skates ont jo never umed, andwent slowly agging down the river, taking a bitter, unhappy sort of satisfaction in her sister's troubles. She had cherished her anger til grewstrong and took possession of her, as evil thoughts and feelings always do, unless cast out at once. As Laurie turned the bend, he shouted back,"Keep near the shore; it isn't safe in the middle"Jo heard, but Amy was struggling to her feet, and did not catch a word jo glanced over her shoulder, and the little demon she was harboringsaid in her ear,"No matter whether she heard or not, let her take care of herself(tron Little Worten by Louisa May Alett)What most likely happened just before, and led to the events in the passage? what is the formula of presure Why did the government of England most likely think the Georgia colony would make a good military defense __________consist of two or more computer-controlled machines or robots linked by automated handling devices such as transfer machines, conveyors, and transport systems. What is p in p+5=p+6 it doesnt make sense to me Do you think Roanoke Island was a good location to settle a new colony? please answer I will give brainiest to who helps. On the morning of a birthday party, a balloon is filled with 8.5 L of helium (He) when the temperature is 294 kelvin. The party starts at 4:00 p.m., at which time, the temperature has risen to 305 kelvin. What is the new volume of the balloon? Harvey is a self-employed accountant with earned income from the business of $120,000 (after the deduction for one-half of his self-employment tax). He uses a defined contribution Keogh plan. What is the maximum amount Harvey can contribute to his retirement plan in 202 HELP MEEEEEEEEHHH pls Can someone please answer, the last thing I got to do today! When you have a disease caused by a virus or bacteria,your immune system mobilizes to fight off the invaders.Which symptom is evidence of your immune system at work? PLZ HELP ASAP -34 is the _______th term of 30,22,14,6,...