I need help with and i will give you a branlist and it’s science

I Need Help With And I Will Give You A Branlist And Its Science

Answers

Answer 1

Answer:

B

Explanation:

Nitrogen has 7 protons


Related Questions

About how big is an atom?
Select one:
a. one tenth of a meter
b. one ten millionith of a millimeter
c. one hundreth of a meter

Answers

I Am Pretty Sure The Answer Is "B"

Hope This Help's

Answer:

b

Explanation:

2. Which nonscience career uses knowledge from the sclence of chemistry? O firefighter O social worker O bank teller O accountant​

Answers

Definitely a fire fighter

Breaks down dead matter that can then be recycled through the ecosystem.

Answers

Answer: Decomposers

Explanation:

Decomposers are organisms that consume dead organisms and other organic waste. They recycle materials from the dead organisms and waste back into the ecosystem. ... The remains of dead plants are consumed by organisms called detritivores.

Differentiate external and internal environment factors in influencing Gene expression​

Answers

Answer Internal and external environmental factors, like gender and temperature, influence gene expression. ... Similarly, drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an organism develops and functions.

Explanation:

b. In 1979, the estimated elephant population was 1.3 million and in 2007 it was 640,000. By approximately what percentage did the elephant population decline over this time period? (Show your work.) How does this compare to the change in range over this same time period?

Answers

Answer:

The initial amount, 1.3 million = 1,300,000 is the 100%.

now, 640,000 is a given percentage (lower than 100%) of that.

How we can find it?

suppose that 640,000 represents an x%.

Then we have that the quotient between the actual quantities and the percentages must be the same

(640,000/1,300,000) = x%/100%

x% = (640,000/1,300,000)*100% = 49.23%

Then the percentage declined is:

100% - 49.23% = 50.77%

The other question can not be answered with the given information.

In order to calculate the percentage decline over the period of time between 1979 and 2007, the general formula for percentage change will be applied. This is as follows:

[tex]\frac{B-A}{A} \times 100[/tex]

where:

A = final value

B = initial value

In this problem:

A = Initial population = 1,300,000

B = Final population = 640,000

Applying this formula to the problem, the percentage change in population between 1979 and 2007 is as follows:

[tex]\frac{B-A}{A} \times 100\\\\\frac{640,000 - 1,300,000}{640,000} \times 100 \\\\\frac{-660,000}{1,300,000} \times 100\\\\= \frac{-66,000,000}{1,300,000} \\\\= -50.769 \%\\= 50.77\% \\Note\ that\ the\ minus\ sign\ denotes\ a\ decline.[/tex]

B: The change in range over this period of time is the difference between the final population and the initial populations, which is calcalated thus:

B - A (as explained above)

= 640,000 - 1,300,000 = - 660,000 (the minus sign still shows a decline)

While the percentage shows a "relative change" in terms of percentage, the change in range shows an absolute or actual change.

A similar example might help you understand more, check it out here: https://brainly.com/question/12291963?referrer=searchResults

You catch, tag, and release 35 fish back into a pond. Then, you catch 70 more fish, 12 of which have tags on them. What is the best estimate of the number of fish in the pond?
a.
100
b.
150
c.
142
d.
204

Answers

Answer:

D. 204

Explanation:

proportion : 12/70 = 35/x

70(35)=12x

2450=12x

204.166667=x and round it to make it 204.

The best estimate of the number of fish in the pond is 204. Thus, option D is correct.

Calculation:

proportion : 12/70 = 35/x

70(35)=12x

2450=12x

204.166667=x and round it to make it 204.

What is average speed?

Average speed has been defined as the total distance travelled in total time taken it means that we can calculate the average speed obtained by an object .

Mathematically,

Average Speed = Total distance travelled/Total time taken

It's S.I unit is meter/second

Average speed is a scalar quantity it means that it has only magnitude not direction.

Ecosystem has been the branch of science that deals with the study of relationship between living organisms and natural phenomena. Ecosystem has the system in which both living as well as nonliving organisms are present in a particular location.

Green plants contain chlorophyll and they prepare there own food in the presence of sunlight and the process is known as photosynthesis. In the process of photosynthesis light  energy converted into chemical energy.

Therefore, The best estimate of the number of fish in the pond is 204. Thus, option D is correct.

Calculation:

proportion : 12/70 = 35/x

70(35)=12x

2450=12x

204.166667=x and round it to make it 204.

Learn more about average speed here:

https://brainly.com/question/12322912

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what is scientific investigation?.​

Answers

Answer:

It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation.

Explanation:

- google wikipiedia


1. Which structure is not part of the endomembrane system?
(A) nuclear envelope
(C) Golgi apparatus
(B) chloroplast
(D) plasma membrane

Answers

Answer: chloroplast is not part of the endomembrane system.

The structure that is not a part of endomembrane system is chloroplast. The correct option is B.

What is endomembrane system?

The endomembrane system is a membranous component system. The membranes of the nucleus, the endoplasmic reticulum, the Golgi apparatus, lysosomes, endosomes, vesicles, and the plasma membrane are all part of it. It doesn't include mitochondrial chloroplast membranes.

The endomembrane system is a network of membranes in the cell that serve to reconfigure, transfer, and bundle proteins and lipids.

The endomembrane system is a collection of eukaryotic biological membranes and organelles that work with each other to modify, package, and transport lipids and proteins.

Thus, the correct option is B.

For more details regarding endomembrane system, visit:

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WHAT IS THE SEQUENCE OF A-T-G-G-C-A,

Answers

Answer:

It is the nucleoid and amino acid sequence

Explanation:

PLEASE ANSWER ASAP!!!! 15 PTS The subunits of nucleic acids are A. nucleotides. B. oils. C. sugars. D. amino acids.

Answers

Answer:

A. Nucleotides

Explanation:

Nucleic acids are composed of smaller subunits called nucleotides. A nucleotide is a nucleoside with one or more phosphoryl group by esterlinkage. When it is in the form of RNA the bases are called adenylate, guanylate, cytidylate, and uridylate.

Amino acids associate with [protein] so it’s not “D.”
Sugars associate with [carbs] so it’s not “C.”
Oils associate with [lipids] so it’s not “B.”

Nucleotides associate with [Nucleic acids] so it’s “A.”

Most desert streams are depleted before reaching the ocean due to _____.

Answers

Answer:

evaporation and soil infiltration

Explanation:

evaporation and soil infiltration.



How many extrinsic eye muscles control each eye in a cow?
O 12
06
O 5
O4

Answers

Answer:

Cows have 4 extrinsic eye muscles that control each eye in a cow. They can look up, down, left, and right, but they can't roll their eyes as you can.

4 is the answer.........

Which of the following is not true of eukaryotic cells?


( WILL REWARD BRAINLIEST )


A. Eukaryotic cells have a nucleus to hold, protect, and organize the genetic material

B. Eukaryotic cells are considered very primitive and basic

C. Eukaryotic cells can be unicellular and multicellular

D. Eukaryotic cells can reproduce easily

Answers

Answer:

C) Eikaryotic cells can be unicellular and multicellular

Answer:

B. Eukaryotic cells are considered very primitive and basic

Explanation:

Prokaryotic cell is considered to he more primitive than eukarya

what would happen if organisms did not have enzymes?

Answers

Digestive enzymes speedup reactions that break down large molecules of carbohydrates, proteins, and fats into smaller molecules the body can use. Without digestive enzymes, animals would not be able to break down food molecules quickly enough to provide the energy and nutrients they need to survive.

not sure need help ​

Answers

Answer:

D. Organic Matter is the correct answer

In a paragraph answer, what is the environmental impact of local foods?

Answers

Answer:

The environmental impact of a food is the effect that the entire production chain has. From the primary, continuing with the stages of transformation, distribution, use and final disposal. This can translate into: * Global warming

can two organisms occupy the same niche in a community? why or why not?

Answers

Answer:

no

Explanation:

two organisms cannot occupy the same niche or else they would compete for the role :)

It depends if they are part of the same species. But that was not included in the question so no, two organisms cannot occupy the same niche in a community.



What is the VOLUME of a cube that measures 2 cm X 4 cm X 3
cm?
O 8 cm3
O 11 cm3
24 cm3

Answers

Answer:

The volume is 24 cubic centimeters.

Explanation:

Volume = Length x Width x Height

Explain (in one or two lines) the function of the followings:
(a) Promoter
(b) tRNA
(c) Exons

Answers

Answer:

In genetics, a promoter is a sequence of DNA to which proteins bind that initiate transcription of a single RNA from the DNA downstream of it. This RNA may encode a protein, or can have a function in and of itself, such as tRNA, mRNA, or rRNA. Transfer ribonucleic acid (tRNA) is a type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein. tRNAs function at specific sites in the ribosome during translation, which is a process that synthesizes a protein from an mRNA molecule. Proteins are built from smaller units called. An exon is the portion of a gene that codes for amino acids. In the cells of plants and animals, most gene sequences are broken up by one or more DNA sequences called introns.

Which of these is a compound?

Answers

Answer:

NaCl

Explanation:

It's a compound.

Answer:

NaCl

Explanation:

because it is more than one element.

SpongeBob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a special Flower Power fertilizer to see if it will help plants produce more flowers. He plants two plants of the same size in separate containers with the same amount of potting soil. The places one plant in a sunny window and waters it every day giving it fertilizer each day. He places the other plant on a shelf in a closet and waters it every day but does not give it any fertilizer. The plant in the sunny window ended up producing many more flowers than did the plant in the closet. Should SpongeBob conclude that giving Flower Power fertilizer to plants will cause the plant to produce more flowers

Answers

Answer:

No

Explanation:

It would be wrong for SpongeBob to conclude that giving flower power fertilizer helps the plant to produce more flowers based on the experimental design.

There are fundamental flaws in the experimental design that could make the conclusion to be wrong:

The two plants were not subjected to the same conditionsThe sample size is too small

In order to investigate if the flower power fertilizer has the capacity to help the plant to produce more flowers, the two plants used should have been subjected to the same conditions barring only the fertilization application. Whatever difference that is observed in the number of flowers produced can then be attributed to the fertilizer.

Also, the number of plants for each group (with and without fertilizer) is too small to arrive at a reliable conclusion. In scientific investigations, replicating measurements increases the statistical power of the resulting data and raises the reliability of the conclusion.

The smooth ER helps build which biomolecules?​

Answers

Answer:

read explanation

Explanation:

This makes sense because this portion of the endoplasmic reticulum builds lipids, or fats, rather than proteins, and thus doesn't need ribosomes. These lipids may include fatty acids, phospholipids and cholesterol molecules. if incorrect dont hate on me please

In biological molecules, carbon,nitrogen, oxygen often form covalent bonds with hydrogen.Arrange these Bonds from most polar to least polar: C-H, N-H,O-H

Answers

Answer:

The order of polarity from most polar to least polar is as follows:

O-H > N-H > C-H

Explanation:

The polarity of a substance is a function of the charges of the ionic elements that makes up the substance. A bond between two ions is considered polar if it is between a negatively charged and positively charged ions. Hence, the stronger the charges of the ions in the bond, the more the polarity.

In this question, hydrogen is said to form covalent bonds with carbon, oxygen and nitrogen in biological molecules. However, the covalent bonds formed will not possess the same degree of polarity.

The bond between oxygen and hydrogen (O-H) is considered most polar amongst these three because OXYGEN atom is the most electronegative among the three ions. Hence, it will pull more electrons to itself and make the hydrogen ion more electropositive. This is followed by the bond between nitrogen and hydrogen (N-H) because nitrogen is more electronegative than carbon. The least polar is the bond between carbon and hydrogen as carbon is the least electronegative, hence, will not be able to pull electrons from hydrogen effectively.

The order from most polar to least polar is: O-H > N-H > C-H

Describe the path of a signal from a neuron's dendrite to a second neuron's dendrite.

Answers

Answer:

Dendrite are short hair like structures originating the periphery of the cytoplasm. Dendrites are either in close contact with other neurons or the stimulus receptor cells.

I would attach a diagram with this note I hope it helps.

which of the following is not a reactant needed for photosynthesis
A. sunlight
B. oxygen
C. carbon dioxide
D. water

Answers

Answer:

I think it B

Explanation:

By definition of photosynthesis, oxygen is not a reactant needed for photosynthesis.

First, you have to know that photosynthesis is a metabolic process carried out by certain cells of autotrophic organisms, that is, those that have the capacity to make their own food, such as plants.

With this process, plants capture the energy of sunlight and transform it into chemical energy, to produce organic matter.

Photosynthesis takes place in 2 stages:

In the first stage the plants absorb water from the soil through the roots. Through their stems they transport it to their leaves. In these it meets the sunlight captured by chlorophyll, which breaks the water molecule, separating hydrogen (H) from oxygen (O2).The other stage is capturing carbon dioxide. This provides the carbon and oxygen atoms that, together with hydrogen and stored energy, will form the glucose molecule, from which compounds are produced that are the basis of food for plants and other living beings.

Then, sunlight, carbon dioxide and water are needed for the photosyntesis, while oxygen is released to the environment.

This is sunlight, carbon dioxide and water are reactants needed for photosyntesis, and oxygen is not a reactant needed.

Learn more:

https://brainly.com/question/13523854?referrer=searchResultshttps://brainly.com/question/13523849?referrer=searchResultshttps://brainly.com/question/873199?referrer=searchResults

Please help!!!!!!!!!

Answers

Answer:

Explanation:

enzymes i think

Answer:

B

Explanation:

enzymes

Cells regulate chemical reactions through the use of proteins called enzymes, which are biological catalysts that help overcome activation 

when a sediment is transported down a mountain and along a stream, we are seeing the conversation of

Answers

Answer:

The options are

A. density B.volume C. area D.matter

The answer is Matter

Explanation:

When a sediment is transported down a mountain and along a stream, we are seeing the conversation of Matter.

The sediments transport substances which have a mass and they occupy different positions and volumes. This is the main reason why the answer is known as Matter.

during a rainy spring, where are you most likely to find surface runoff

Answers

Answer:

there is only one surface in which we can run off in rainy season and that is room

Explanation:

steffie matt

Answer:

On a sloped parking lot

Explanation:

Surface runoff can be referred as the flow of water, that occurs when the excess water flows from the storm water, melt water, flood, rain streams and rain fall. The fast moving water current takes along with it superficial layers like surface and sub- surface layers of soil. Hence, causes water erosion of soil. The slope parking lot will favor, surface runoff more likely than in a grassy prairie, mulched flower bed, or in a sand pit because the slope will provide a surface for free flow of water. There are chances that water gets absorbed by the soil in the grassy prairie, mulched flower bed and sand pit. Whereas the slopy surface of parking lot will not allow the water retention by soil, instead will accelerate the flow of water.

(Hopes this helps!)

Which is NOT a prokaryote?

( WILL REWARD BRAINLIEST)

A. Archaebacteria

B. Fungi

C. Halophiles

D. Eubacteria

Answers

Answer:

B, fungi!

Explanation:

Fungi is a eukaryote.

Answer:

Fungi

Explanation:

Because it's eukaryote contain true nucleus.

If plants in a population seriously decreased, how would the animals in that population be affected? EXPLAIN

Answers

Answer:

because a lot of animals eat plants, so a lot of animals will die off/ or move to a place with lots of plants.

Explanation:

most animals live off eating plants.

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