Answer:
Where is the graph
Explanation:
Where is the graph?
before mitosis begins a cell makes a copy of the dna in the nucleus. What term is used to describe this process of making an exact copy of the dna
DNA replication
Explanation:
Mitosis produces cells that have a ___ number of chromosomes, while meiosis produces cells that have a ___ number of chromosomes
Answer:
Mitosis: 46
Meiosis: 23
Explanation:
wich of the following salt solutions is the mosts concentrated ?
a.20 grams of salt dissolve in 100 ml of water
b.30 grams of salt dissolve in 100 mL of water
c.30 grams of salt dissolve in 200 mL of water
d.50 grams of salt dissolve in 200 mL of water
Answer:
Gimme my points back
Explanation:
What is the scientific name for a Burchell’s zebra?
Answer:
Equus quagga
Explanation:
I hope this helps!!
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-jmora273
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On an electrophoresis gel, band B is closer to the positive end of the gel than is band A. Which of the following statements is true?
A. The DNA fragments in band B were smaller than those in band A.
B. Band A and band B contain the same DNA fragments.
C. Band A moved faster than band B.
D. The DNA in B is more positively charged than the DNA in A.
Answer:
D. The DNA in B is more positively charged than the DNA in A.
D. The DNA in B is more positively charged than the DNA in A.
Explanation:
The DNA in band B is relatively smaller than that of the DNA in band A. Option A is correct.
DNA Electrophoresis:It is a technique that is used to separate DNA fragments of different sizes. In this technique, agarose gel is used as the base.DNA moves from the negative electrode towards the positive electrode. Large DNA molecules run slower than smaller DNA molecules because small molecules easily pass through the pores of the agarose gel.Therefore, the DNA in band B is relatively smaller than that of the DNA in band A.
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I will give 25 points(thats all of mine)
Answer:
Plants take in carbon dioxide to do photosynthesis and gives off oxygen, the sheep in the field breathes in the oxygen the plants made. When the sheep dies, it would put carbon into the soil by decomposition. The powerplant will use the fossil fuel in the soil to create power, and ends up putting carbon in the air again. The stages repeats again and again.
Explanation:
Tectonic plate motion can directly result in _____.
volcanic eruptions
deforestation in the Amazon basin
the extinction of species
global warming
Answer:
Tectonic plate motion can directly result in VOLCANIC ERUPTIONS.
Many volcanoes erupt due to movement in tectonic plates, and furthermore, most volcanoes are located adjacent to tectonic plates. (For example, the ring of fire around the Pacific Plate)
Let me know if this helps!
How earth can build and destroy landforms?
Which statements explain the cold temperatures in the Northern Hemisphere during the winter? Choose the TWO correct answers.
A.
The Northern Hemisphere is farther from the sun during the winter.
B.
In the Northern Hemisphere, the sun is lower in the sky during the winter.
C.
Earth is farther from the sun during the winter.
D.
Earth rotates more slowly during the winter.
E.
The Northern Hemisphere gets less direct sunlight during the winter.
Answer: Option A and E.
Explanation:
Norther hemisphere Is the half of the Earth that lies on the north of the equator. The equator is the line that divide the Earth into two halves.
During the winter, the northern hemisphere is colder because the northern hemisphere move away from the sun and receive less sunlight form the sun. The sun is very high in temperature and it has high heat, when the northern hemisphere move away from it, there is lower heat or temperature that get to it , making it to become cooler or have lower temperature. The countries in the northern hemisphere comprises of all countries in Europe, North America, Asia,part of South America and little part of Africa.
Explanation:
How are genes and proteins related?
A. Genes and proteins are both made of DNA.
B. Both are made from amino acids.
Ο
C. Proteins are made of parts of genes.
D. One gene codes for one protein.
Answer:
A
Explanation:
either b or c
Explanation:
i'm in bio and we just went over this but i can't quite remember
5 similarities between The Moon & Mercury and justify your answers
Answer:
It has no atmosphere.
Its surface is covered with circular craters.
It has huge, round basins.
It has lunar highlands.
Explanation:
Mercury is similar to the moon because both have no atmosphere, surface is covered with circular craters and having large, round basins. Both have lunar highlands. Craters are the circular, excavated holes made by impact events that has a rough surface while on the other hands, most of the crust of the Moon is made of silicate rocks is known as anorthosites, these regions are called the lunar highlands.
13.1: Consider four different cellular systems that share the following characteristics. The frequency bands are 825 to 845 MHz for mobile unit transmission and 870 to 890 MHz for base station transmission. A duplex circuit consists of one 30-kHz channel in each direction. The systems are distinguished by the reuse factor, which is 4, 7, 12, and 19, respectively. a. Suppose that in each of the systems, the cluster of cells (4, 7, 12, 19) is duplicated 16 times. Find the number of simultaneous communications that can be supported by each system. (20MHz / 30kHz) * 16
Answer:
The correct answer is - 10.6666 channels.
Explanation:
Given:
numbers of clusters duplicated = 16 times
The frequency bands for mobile unit transmission are - 825 to 845 MHz
The frequency bands for base station transmission = 870 to 890 MHz
The required bandwidth for each one-way direction of channels = 30 kHz
Formula:
the number of simultaneous communications that can be supported by each system [tex]k_{sys}[/tex] = [tex]MB_{CL}[/tex]/[tex]b_{ch}[/tex]
Solution:
The required bandwidth for each two-way direction of channels = 2 × 30 kHz
then, according to the formula the number of simultaneous communications that can be supported by each system
[tex]k_{sys}[/tex] = [tex]MB_{CL}[/tex]/[tex]b_{ch}[/tex]
k_{sys} = 16×40/60
[b_{ch} = (845-825) + (890-870) = 20+20=40)]
= 10.6666.
An example of a non-specific intemal defense is:
Will give BRAINLIEST
Answer:
Mucous membranes
Explanation:
The epidermis (external) and mucous membranes (internal) represent the first non-specific barriers that act against invading pathogens and harmful substances. The mucous membranes separate the external environment surrounding the mucous cells from the body's internal environment. These membranes are considered as selectively permeable barriers that act to prohibit the passage of pathogenic microorganisms (e.g., bacteria) and harmful agents (toxic chemical substances).
Suggest why cells die if the mitochondria do not fuction
Answer: Widespread damage to mitochondria causes cells to die because they can no longer produce enough energy. Indeed, mitochondria themselves unleash the enzymes responsible for cell death.
Explanation:
What is Gregor Mendel's contribution to the history and study of genetics?
Your answer:
A. He discovered that characteristics are determined by inherited factors (genes).
B. He discovered that alleles can be dominant or recessive.
C. He discovered that alleles segregate independently during the formation of gamates.
D.All of the other answer choices
Answer:
d
Explanation:
all of the other answer choices
I feel like it would be D. I know I'm 9 times out of 10 probably wrong.
This model shows the process of protein synthesis including transcription and translation. What is the best explanation for what is
occurring at the arrow (translation)?
Answer: The answer is C
Explanation:
During the process of protein synthesis, the best explanation for what is occurring at the arrow is as follows:
The codon on the mRNA pairs with the anticodon on the tRNA which transfers amino acids into the proper sequence to form a protein.What is Protein synthesis?Protein synthesis may be defined as a biological process through which cells make proteins in order to accomplish metabolic functions that facilitate the survival of living organisms. The process of protein synthesis terminates with the help of two stages. They are as follows:
Transcription.Translation.Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. While the process of translation acquired the transfer of genetic instructions from the mRNA to the sequence of amino acids in order to form proteins. This takes place in the cytoplasm of the cell.
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1. Lymph fluid contains all but
a, red blood cells
b. hormones
c. digested nutrients
d. salts
A plant biologist discovers a new species of plant in the ashes of a recent forest fire along the sides of a steep mountain range. It is fall, and temperatures are dropping below freezing. The biologist cannot stay in the field to observe the plant. What can he infer about the plant’s reproductive strategy, based on his recent observations?
Answer:
Based on the observations, the plant likely reproduces by dropping a pod of some sort (such as a cone) and the heat of the fire allows the pod to open up and drop the seeds. This is called pyrophytic reproduction.
Explanation:
The plant will produce cones because cones allow for seed dispersal during all seasons. Hence, option C is correct.
What are cones in gymnosperms?A cone is a mass of scales or bracts that is typically ovate in shape and that houses the reproductive organs of several non-flowering plants.
All gymnosperms, some club mosses, and horsetails have the cone, which distinguishes them from pines and other conifers. Gymnosperms generate huge female cones and little male cones, which are two separate types of cones.
Pollen is produced by male cones and is then wind-transported to female cones. The female cones produce seeds after the male gametes from the pollen fertilize the female gametes, which are subsequently dispersed from the plant by wind or animals. Hence, option C is correct.
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Your question is incomplete, but most probably your full question was,
A plant biologist discovers a new species of plant in the ashes of a recent forest fire along the sides of a steep mountain range. It is fall, and temperatures are dropping below freezing. The biologist cannot stay in the field to observe the plant What can he infer about the plant's reproductive strategy, based on his recent observations?
A. The plant will produce flowers because at this altitude there is sufficient sunlight.
B. The plant will produce cones because cones will mature into adult plants more rapidly.
C. The plant will produce cones because cones allow for seed dispersal during all seasons.
D. The plant will produce flowers because flowers can protect the seeds from extreme conditions.
HELP ASAP THIS IS MAJOR GRADE
Answer:ITS B GRAVITY PULLS AN INWARD FORCE!
Answer:
Answer A
Explanation:
Gravity keeps things on the ground meaning the gravitational force is going down.
PLEASE HELP
how does building a road, affect tourist?
is it good or bad? and why
i need VERY SHORT answer
Answer:
It's good.
It's easier to travel on a road than on rough dirt or grass etc.
Edit:
They would be more likely to go to your place and they would feel safer and they would invite their friends if they really like it.
(Sorry for not adding this before)
*****
3
To Tºp
6) rur and Ynz
GO AWAY!!!!!!!!!!!!!
Which statement best describes these two molecules?
Answer:
What two molecules?
Answer: energy for life processes can be stores within chemical bonds of both molecules
Explanation: um if you are talking about the question on regents
'the two diagrams below represent a sugar molecule and a fat molecule that are used by living organisms. which statement best describes these two molecules?'
Which of the following is NOT a common element in the human body? Select all that apply.
Answer:
Helium and carbon dioxide
The elements that are not common in human body are carbon dioxide and helium. The correct options are B and E.
What are elements?A chemical element is a type of atom with a specific number of protons in its nucleus, including the pure substance made up entirely of that species.
Chemical elements, unlike chemical compounds, cannot be broken down into simpler substances by any chemical reaction.
The human body is made up of only six components: oxygen, hydrogen, nitrogen, carbon, calcium, as well as phosphorus.
Sulfur, potassium, sodium, chlorine, and magnesium make up about 0.85% of the remaining mass. All 11 of these elements are necessary.
Carbon dioxide and helium are elements that are not found in the human body.
Thus, the correct options are B and E.
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Plzzz help I dont understand this
Answer:
The answer is Egg cell. Only germinal cells can transmit mutations to the offspring
A tree grows three feet per year. What happens to the growth of the tree when the number of years changes?
O When the number of years increases, the number of feetecreases.
O When the number of years decreases, the number of feet sie the same.
When the number of years increases, the number of feet increases.
O When the number of years decreases, the number of feet increases.
Answer:
c
Explanation:
i think
The hair on Jamal’s arms is standing straight up.
What most likely explains why his hair is behaving this way?
He is in a cold area.
He is sweating.
He is in danger of bacteria.
He is receiving information for touch.
Answer: A
Explanation: Because I said so.
If we were to observe a cell in prophase and see 3 centromeres, how many chromatids are present?
Answer:
The correct answer is - 6 chromatids.
Explanation:
Prophase is the stage in the cell cycle that is known for the condensation and disappearance of the nucleolus. In this stage chromosome become more compacts and the sister chromatids are still together and not separated. These sister chromatids are joined together with the centromere.
Centromere do not allow sister chromatids to move away and makes it intact. The number of centromere is the number of chromosme present in the prophase and half of the sister chromatids that means if there us 3 centromere than the number of sister chromatids will be 6.
General reactants of the light reactions in Photosynthesis are?
Answer:
Carbon dioxide (CO2) and water (H2O)
Earth's seasons are caused by
A. Earth's orbit around the Sun
B. Earth's rotation around its axis
C. Earth's tilt
D. All of the above
Choose the correct answer.''
Answer:
B. Earth's rotation around its axis
Explanation:
You see an entire pond, with the same plant across most of it. The plant seems to be surviving very well. Which adaptation does the plant most likely have?
Group of answer choices
Waterproof Leaves
Big Leaves
Short Roots
Cactus Spines