Why do you pair up the first two electrons?

Answers

Answer 1

Explanation:

because of the Pauli exclusion principle


Related Questions

In an experimental investigation, the group that is not manipulated by the researcher and is then compared to the experimental group is called the _______
group.

Answers

Control group is the answer to your question!

Answer:

Control group

Explanation:

Restriction enzymes: A) act at the membrane to restrict the passage of certain molecules into the cell. B) are highly specialized ribonucleases that degrade mRNA soon after its synthesis. C) are sequence-specific DNA endonucleases. D) are very specific proteases that cleave peptides at only certain sequences. E) catalyze the addition of a certain amino acid to a specific tRNA. c The biological role of restriction enzymes is to: A) aid recombinant DNA research. B) degrade foreign DNA that enters a bacterium. C) make bacteria resistant to antibiotics. D) restrict the damage to DNA by ultraviolet light. E) restrict the size of DNA in certain bacteria.

Answers

Answer:

C) are sequence-specific DNA endonucleases

Explanation:

Restriction enzymes represent a type enzyme capable of recognizing short nucleotide sequences to cut at specific restriction sites in the DNA, these sites are known as target DNA sequences. Some of the most commonly used restriction enzymes are EcoRI, BamHI and HindIII, isolated from Escherichia coli, Bacillus amyloliquefaciens and Haemophilus influenza, respectively. Restriction enzymes are endonucleases because these enzymes only cleave the phosphodiester bond within the DNA chain, conversely to exonucleases, which cleave nucleotides from the end of the polynucleotide DNA strand.

What are 3 molecules that require active transport?

Answers

Answer:

ions, glucose and amino acids i think

don't get mad

Explanation:

Which of these best explains the impact of radiation on the geosphere?

Land is heated up by the sun's energy.
Water is heated up by the sun's energy.
Water heats up the air surrounding it.
Land heats up the air surrounding it.

Answers

Answer: I believe its A: Land is heated up by the sun's energy  

Explanation:

Because When the sun is Pointing at the ground for example the heat or radiation of it heats the land or ground

Which is a difference between eukaryotic and prokaryotic cells? A. Nucleus, A. Cell membrane, C. Cell wall, D. Cillia

Answers

Answer:

Nucleus is a difference between eukaryotic and prokaryotic cells because nucleus is present in eukaryotes and nucleoid also called genophore / prochromosome is present in prokaryotes.

A solar panel collects sunlight and converts it to
heat or electrical energy. How is a solar panel
similar to chloroplasts?

Answers

Answer:

chloroplasts use photosynthesis to make food from the sun to survive.

Explanation:

they use the sun's energy as a kind of "go-go juice"

rna and dna are which type of macromolecule

Answers

Answer:

Nucleic Acids

Explanation:

They are made of Nucleic Acids

They are nucleic acids !

______ is a disease that results in bowed legs and other bone deformation

Answers

Answer: Rickets

Explanation:

Rickets is a bone disease caused by children it says in studies but yes it is rickets

True or False. If gametes were produced in the same way as daughter cells in mitosis, there would be a doubling of the chromosome number at fertilisation.

Answers

Answer:

true im pretty sure

Explanation:

This monarch butterfly has orange wings. Is orange
the genotype or the phenotype? Explain

Answers

Answer:

Phenotype

Explanation:

It's phenotype because a genotype is not a physical trait; a genotype means genes. It's phenotype because it a physical trait you can see. Lets say twins look the same on the outside but on the inside they have completely DNA. This is like how some butterflies look the same with orange wings but one might have a mutation in its genes.

In a population of frogs, there is a dominant allele H that improves the survival of eggs in moderately dry conditions compared to the wild-type and recessive h allele. Imagine that climate change causes the environment where these frogs live to become more dry. Individuals with the drought-resistant eggs on average have 21 viable offspring per frog per generation, whereas those without that phenotype on average have only 12. If we start off with genotype frequencies of .02 HH, .03 Hh, and .95 hh, what is the average excess fitness of the H allele?

Answers

Answer:

8.55

Explanation:

I n the year1908, these two men Godfrey Hardy and Wilhelm Weinberg gave a specification of the relationship between the frequency of genotype and frequencies of allele that should occur when such a population is in equilibrium

p²+2pq+q² = 1

we have,

p² = 0.02

p = √0.02

such that frequency of H is = 0.1414

2pq = 0.03

q² = 0.95

q= √0.95

such that frequency of h =0.9746

(21-12)  * 0.95 =

8.55 frogs per generation

H and h will coexist.

Which of the moon's properties prevents it from being pulled inward by Earth?

Answers

Explanation:

I think so the answer is inertia

plzzzz mark my answer as brilliant

Answer: INERTIA

Explanation: Quizlet saves lives/ it remains in a state of motion without being disturbed! Have a great night and pls lemme know if this helps! :)

monomers are called carbohydrates are linked together to form fat molecules, or ______

Answers

Answer:

polymer

Explanation:

Hope that helps!

What common thing occurs in each mutation?

Answers

You didn’t attach the pictures
Where’s the pictures????....I’m confused ....

How have modern organisms evolved over long periods of time?

Answers

Answer:

Darwin's theory of natural selection states that organisms evolved from their common ancestors over a long period of time.

Hope this helps!

What are the products of cellular respiration?

Answer ASAP test due

Answers

Most of the steps of cellular respiration take place in the mitochondria. Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.

The products of cellular respiration are water, carbon dioxide and energy (ATP). Details about cellular respiration can be found below.

What is cellular respiration?

Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules in their cells.

Cellular respiration involves the reaction of glucose and oxygen molecules as reactants to synthesize carbon dioxide gas, water and ATP molecules.

Therefore, the products of cellular respiration are water, carbon dioxide and energy (ATP).

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What us one way people have negatively affected land resources?
A. Habitat Restoration
B. Urbanization
C. Terrace Farming
D. Reforestation (Not deforestation)
Please Help!​

Answers

Answer:

A

Explanation:

because people wants more than tehy want

It’s (A) habitat restoration

Dehydration reactions remove two _____
atoms and one
______ atom, the equivalent of a water molecule.

1. water
2. polymers
3. oxygen
4. ethanol
5. catalases
6. hydrogen
7. nitrogen
8. hydrolysis

Answers

Answer:

2 Hydrogen atoms and 1 oxygen atom.

Explanation:

The chemical makeup of Water ([tex]H_{2}O[/tex]) is 2 Hydrogens and 1 oxygen. These atoms are removed from each other when dehydration occurs.

True or false adult stem cells are the best option for healing the widest variety of diseases

Answers

Answer:

true

Explanation:

In pea plants, round seed shape (R) is dominant over wrinkled (r). Write the genotype for a plant that is heterozygous.

Answers

Answer:

Rr, heterozygous traits have one recessive and one dominant, therefor meaning its going to be Rr

Answer:

R.r

Explanation:

Hetero = different

Hom0 = same

An individual hom0zygous for a particular trait has two of the same allele at the gene. In this case, it would either be R.R or r.r.

An individual heterozygous for a particular trait has two different alleles, in this case it is R.r.

Which of the following factors is most likely to decrease the stability of an ecosystem?
A
The removal of a species
B
An increase in plant biodiversity
C
The removal of an individual animal
D
An increase in animal biodiversity

Answers

Answer:

A

Explanation:

The removal of a species can reduce the food source of another species, which can cause that species to slowly die out, where other animals that consume the dying species start dying out... ect.

So it decreases the biodiversity which can mess with populations.

If the species is a herbivore, it could cause the plants that are eaten by that herbivore to get out of control in population, which can fight for sunlight and resources with other species causing ecosystem collapse.

In an ecosystem, the removal of a species can decrease the stability. Thus, option A is correct.

What are the biotic factors of an ecosystem ?

Biotic factors are the basic unit  of ecosystem where the living beings interact with each other and their environment.

There are two components of an ecosystem such as biotic and abiotic components, include distribution of energy in our environment.

Biotic components can be classified into autotrophs, heterotrophs and  decomposers based on mode of nutrition.

Autotrophs are producer such as plants as they produce food through the process of photosynthesis.

Heterotrophs are the consumer depend on producer for their nutrient, which is further classified into three categories.

Primary consumers are herbivores rely on producers for food while secondary consumers depend on primary consumers. They can be carnivores or omnivores.

Tertiary consumers depend on secondary consumers for food. some quaternary consumers are also seen in some food chains.

Decomposers include saprophytes such as fungi and bacteria which lie on decaying organic matter and essential for the ecosystem

Hence, option A is correct.

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CELLS: Describe the structure of a eukaryotic plant cell. Indicate the ways in
which a non-photosynthetic prokaryotic cell would differ in structure from this
generalized eukaryotic plant cell.

Answers

Answer:

A cell that is nonphotosynthetic, such as a prokaryotic bacterium, would not require chloroplasts to function.

Explanation:

A broad sweeping eukaryotic plant cell accomplishes the basic functions required for plant care. It's a jumble of organelles held together structurally by the cell membrane, which is located outside of the cell wall.

What is eukaryotic cell?

Plant and animal cells are eukaryotic, which means they contain nuclei. Plants, animals, fungi, and protists all have eukaryotic cells.

They typically have a nucleus organelle surrounded by a membrane called the nuclear envelope, which stores DNA.

Prokaryotes are typically simpler, requiring only a few organelles to survive. This is frequently because, as previously stated, it requires less energy.

It has DNA to contain genetic material, ribosomes to make proteins, a cell membrane, and a cell wall to protect the cell from its surroundings. While other components are produced by prokaryotes, the ones listed above are those that may be found in plant cells.

Aside from that, the non-photosynthetic prokaryotic cell requires much less energy, resulting in a cell that is much smaller and less complex than the generalized eukaryotic cell.

Thus, this way, a non-photosynthetic prokaryotic cell would differ in structure from this generalized eukaryotic plant cell.

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Explain the relationship between the length of a Great White
Shark and how much food it eats per year.

Answers

Answer:

Explanation:

Every living thing grows. It needs energy to grow. It gets energy through food. When it doesn't have enough energy, it won't grow as fast. When it does, it will grow normally. If it get's more than enough, it will grow faster. One exception is if that organism is a human, and is having a growth spurt.

A(n) _____________ is all the living and nonliving things in a particular area that interact with one another

Answers

Answer:

ecosystem

Explanation:

hope this helps

A(n) ecosystem is all the living and nonliving things in a particular area that interact with one another.

What is an ecosystem?

A(n) ecosystem is all the living and nonliving things in a particular area that interact with one another. An ecosystem includes the living organisms (plants, animals, and microbes) and the nonliving components (water, air, and soil) that make up the environment in a specific area.

These living and nonliving components of an ecosystem interact with one another, forming complex relationships and feedback loops that help to sustain the ecosystem over time. Ecosystems can vary in size from small ponds to vast oceans, and they can be found in a wide range of environments, from deserts to rainforests.

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Ways to calculate an "average" include

A. mean, median, and mode

B. mean, median, and percent

C. mean, percent, and mode

D. percent, median, and mode

Answers

A: Mean, Median, and Mode. Hope this helps!

explain the resistence ......?? follow me gyus​

Answers

Explanation:

is there multiple choice?

tendency of a material to oppose electron flow

What term describes the set of chromosomes matched together and labeled as numbered chromosomes?​

Answers

Answer:

Here is your answer

Homologous pair

please mark me as brainlist

TT att tt assume that in pea plants tall plant height is dominant to short plant height. Determine the phenotype from the genotypes.

Answers

Answer:

TT=tall

Tt=tall

tt=short

Which of the following is an example of federalism?

Answers

You kinda need to put something there? We don’t know what the choices are so there’s really no way we’d know what choice is an example of federalism

as a research scientist you discover what you believed to be a new organism you find the organism in the event of an underwater volcano what would you need to determine about the organism in order to prove that it alive

Answers

What you would need to to determine that is to look at the "organism" to see if it has

order, sensitivity or response to the environment, reproduction, adaptation, growth and development, homeostasis, energy processing, and evolution. If it does then it is a organism.

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