which one of the following is a DNA virus
A: Hin1 B: Hepatits C: HIV D: Herpes Complex
Answer:
Hepatitis definitely but Herpes is double stranded but I’m not sure.
Explanation:
20. Explain why it is important to cite the references you use in a scientific report.
Answer:
If you don’t cite where you got your information from, there could be horrible consequences. If you don’t cite your references and use that work as your own, your subject to plagiarism.
Explanation:
Answer:
If you don’t cite where you got your information from, there could be horrible consequences. If you don’t cite your references and use that work as your own, you are subject to plagiarism.
Explanation:
In the example of the predator/prey web in the grassland community on Bylot Island, a rise in the snowy owl population would have what effect on the snow goose
Predator/prey web relationship is found in all ecosystem. A rise in the snowy owl population would have what effect on the snow goose in that The snow goose population would rise due to lemming, and subsequently fox, populations declining.
Food webs often has predator/prey relationships. They show the direct relationships in ecosystems such as the predator-prey relationships. Predators includes big cats such as cheetahs and lions. They often hunt prey in temperate grasslands.In North America, predators such as wolves, coyotes and foxes mostly hunt for mice, rabbits and deer.
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PLEASE HELP!! Identify and place the stages of mitosis in the chart.
Answer:
the nuclear envelope sentence goes to PROPHASE
The chromosomea align in sentence goes to METAPHASE
Why shoud temperature and oxygen be measured in a fish salinity tolerance experiment?
First, the solubility of oxygen decreases as temperature increases ¹. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water.
Your Mother needs to transfer (i.e., encode) a list of 25 vocabulary words from her STM to her LTM. She asks for your help. You suggest that she use elaborative rehearsal and you begin to train her in this technique. What do you ask your Mother to do?
1) you ask her to repeat the words over and over again
2) you ask her to give each word meaning by using each word in a sentence
3) you ask her to break down each word into various "chunks"
4) you ask her to memorize each word and its meaning
*PLEASE ADD EXPLANATION*
The best technique for your mother is that she uses each word in a sentence to give it a meaning, and remember it better (option 2).
Elaborative rehearsal is a common technique used to remember information in a long-term way. Due to this, this technique can be used to move information from short-term memory to long-term memory.
In this technique, the main purpose is to associate the new information with something you already know. In learning new words, this can include:
Associating new words to images.Creating examples of sentences.Associating a new word to a synonym you already know.In this context, the technique that is part of elaborative rehearsal is using the word in a sentence (option 2).
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WILL MARK BRAINLYIST!! (if mostly/ all correct)
1. According to the article "Drilling down into petroleum's impact on life on Earth", Peak oil is measured in RPRs (reserve-to-production ratios), which is recorded in years.
Question: Why does Iran have a higher RPR (80 years) than the United States (9 years)?
A. The United States consumes more oil than Iran.
B. Iran consumes more oil than the United States.
C. Iran produces more oil than the United States.
D. The United States produces more oil than Iran.
2. According to the article "Drilling down into petroleum's impact on life on Earth", carbon is a natural element that regulates Earth's temperature and makes the planet livable.
Question: Which event has led to major shifts in the carbon cycle becoming?
A. Peak oil has been reached this past decade.
B. Humans learned how to extract and burn fuel.
C. The API established units of measurement for oil.
D. Ancient algae and plankton were buried and crushed.
3.According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how have humans impacted the Amazon rain forest in the last 50 years?
1. 20% of the rain forest is gone (Correct)
2. There are more roads and people there (correct)
3. Over half of the rain forest is protected (correct)
4. Extinct species have been reintroduced (NOT correct)
A. 1, 3 and 4
B. 1, 2 and 3 "correct answer" (ITS THIS ONE. B OR 1,2 and 3!!!)
C. 2, 3 and 4
D. 1. 2 and 4
4. According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how is the Amazon rain forest connected to climate change?
A. Trees of the Amazon remove carbon dioxide from the air.
B. People of the Amazon produce most of the carbon dioxide that causes climate change.
C.Soil in the Amazon absorbs carbon dioxide.
D. Water in the Amazon River produces carbon dioxide, adding to climate change.
5. Which selection from the article "Scientists study Persian Gulf reefs for coral survival clues" identifies the biggest threat to coral reefs?
A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
B. The researchers demonstrated that this new organism was the most commonly found algae throughout the gulf's coral reefs. They say it probably adapted as a result of the gulf's harsh conditions.
Answer:a d. c on second?
Explanation: United States produces more oil than most country's the states use more oil than iran
Question 1 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. The cell works better when it contains fewer proteins.
B. It helps the cell absorb as many different molecules as possible.
C. Transport proteins allow only enzymes to pass through the
membrane
D. It is better for the cell if most molecules are prevented from
entering
Answer:
D. It is better for the cell if most molecules are prevented from
entering
Explanation:
The published data for the map distance between the gene and the centromere is 26 map units. You just calculated the map distance as 17 map units. What is the best explanation for this disparity
Linkage maps and physical maps are NOT the same. A linkage map measures the number of recombination events in a given chromosome fragment.
A linkage map is based on the frequency of recombination events between genes or molecular markers.
This frequency indicates the number of events in which a single chromosomal fragment recombines between two or more genes or molecular markers during meiosis.
Conversely, a physical DNA map indicates the physical locations of genes (molecular markers) and nucleotide (DNA) sequences of interest, which is useful to identify genes by positional cloning.
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What is the linear momentum of an object with a mass of 10 kg and velocity of 100 m/s?
Here,
Mass of the object = 10 kg
Linear momentum of the object=100kg m/s
And , we have to find it’s velocity??
But we do know that linear momentum (p) is mass(m)× velocity (v)
P=m×v
V=p/m
Substituting the value here we get,
V= 10/100
Therefore, v= 0.1m/s.
PLEASE HELP WHAT IS THIS BUG
Answer:
i dont know
Explanation:
can some one answer this questions please
11. All living things __________ waste. (REXETEC)
unscramble the word.
Answer:
All living things excrete waste, word unscrambled
Which statements describe the Sun? Check all that apply.
It is the center of the solar system.
It is made up mostly of gases, not solids.
It is ancient, at over 10 billion years old.
It is the most massive object in the solar system.
It is composed mostly of oxygen and nitrogen.
Please no links. Doing it on edge 2021
Answer:
It is the center of the solar system.
It is made up mostly of gases, not solids.
It is the most massive object in the solar system.
Explanation: The sun is only about 4 billion years old so the 3rd one is incorrect, and the last one is incorrect because the Sun is made up of mostly hydrogen
Pigments
Pigments are molecules that can absorb certain _______________ of ___________
The primary pigment of photosynthesis is chlorophyll
Chlorophyll is green in colour because it _____________ green light while it ______________ red and blue colours
Additional pigments called __________________ pigments absorb most colours of the visible spectrum to some extent
Most leaves appear green because chlorophyll is much more ________________ than the accessory pigments
Answer:
wavelengths of light
reflects green light and absorb red and blue light
accessory pigments absorb...etc.
... (don't know the ast one) ...
describe evidence from biogeography that species evolve adaptations to their environment
Answer:
Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved. Fossils provide evidence of long-term evolutionary changes, documenting the past existence of species that are now extinct.
To give one classic example, the forelimbs of whales, humans, and birds look quite different on the outside. That's because they're adapted to function in different environments. However, if you look at the bone structure of the forelimbs, you'll find that the organization of the bones is remarkably similar across species. It's unlikely that such similar structures would have evolved independently in each species, and more likely that the basic layout of bones was already present in a common ancestor of whales, humans, and birds.
how did the evolution of species change the atmosphere
Answer:
rising temperatures, droughts, shifting patterns of precipitation and longer growing seasons, plants and animals are evolving to keep pace. Biologists have observed squirrels and salmon developing at an accelerated pace, causing them to reproduce at a younger age.
1) The stomach is an organ of the digestive system. It is made up of several types of tissue that work together. What kinds of tissue make up the stomach? Choose ALL that apply.
A) nervous
B) smooth muscle
C) dense connective
D) simple columnar epithelial
E) stratified squamous epithelial
Answer:
c)dense connective
Explanation:
Answer:
c) dense connective
Explanation:
list five traportance of science to men
1. Science is the greatest collective endeavor. It contributes to ensuring a longer and healthier life, monitors our health, provides medicine to cure our diseases, alleviates aches and pains, helps us to provide water for our basic needs – including our food, provides energy and makes life more fun, including sports, music, entertainment and the latest communication technology. Last but not least, it nourishes our spirit.
2. Science generates solutions for everyday life and helps us to answer the great mysteries of the universe. In other words, science is one of the most important channels of knowledge. It has a specific role, as well as a variety of functions for the benefit of our society: creating new knowledge, improving education, and increasing the quality of our lives.
3. Science must respond to societal needs and global challenges. Public understanding and engagement with science, and citizen participation including through the popularization of science are essential to equip citizens to make informed personal and professional choices. Governments need to make decisions based on quality scientific information on issues such as health and agriculture, and parliaments need to legislate on societal issues which necessitate the latest scientific knowledge. National governments need to understand the science behind major global challenges such as climate change, ocean health, biodiversity loss and freshwater security.
4. To face sustainable development challenges, governments and citizens alike must understand the language of science and must become scientifically literate. On the other hand, scientists must understand the problems policy-makers face and endeavor to make the results of their research relevant and comprehensible to society.
5. Challenges today cut across the traditional boundaries of disciplines and stretch across the lifecycle of innovation -- from research to knowledge development and its application. Science, technology and innovation must drive our pursuit of more equitable and sustainable development.
Use complete sentences to explain how global wind patterns such as the polar easterlies in the southern hemisphere would be impacted if Earth stops spinning.
Answer:
Atmospheric patterns are also tied to the planets rotation
It would greatly change the way air currents move
Where has the population reached the carrying capacity in the graph shown
above?
A. Point A
B. Point D
C. Point B
D. Point C
Answer: the correct answer is D
Explanation:Carrying capacity is characterized as the maximum populace size that a domain can continue inconclusively. For most species, there are four factors that factor into figuring the carrying capacity of an individual population: food accessibility, water resources, habitat, and ecological conditions.
In a graph representation of population size in a time period increases until it reaches carrying capacity, carrying capacity is representing in the graph where the increase in curve becomes stable and makes a plateau.
Compare and contrast an active solar heating system with a radiator system.
Answer:
A system that uses the sun's energy without requiring mechanical devices (pumps or fans) to distribute the collected heat are called solar system while radiator system uses fuel to heat the water. in active solar heating system, the SUN's energy used to heat water.
The comparison of an active solar heating system with a radiator system gives; Solar systems use the sun's energy to heat water without the need for mechanical equipment to disperse the heat, where radiator systems require fuel to heat the water.
What is an active solar heating system?Active solar heating systems employ solar energy to heat a fluid (liquid or air), which is then transferred to the interior area or stored for later use.
In conclusion, an active solar heating system and a radiator system are all subs of heat energy
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Assume for the purposes of this problem that the order of and distances between three linked genes are the following: unc-32 10mu vab-7 20mu dpy-17 What is the probability of obtaining a phenotypic unc-32 vab-7 offspring from a cross between a heterozygous fly(unc-32 vab-7 dpy-17/ ) and the triple recessive nematode
From the distances between genes and their order, it is possible to get recombination frequencies per region (simple and double recombination frequencies). The probability of obtaining a unc-32 vab-7 + offspring is 0.09 = 9%.
---------------------
We are usually asked to get the order of genes in a chromosome. To do so, we need to get the distances between genes. And to get distances between genes, we need to get their recombination frequency.
When three genes are involved, we get the distances by taking the recombination frequency, P, per region.
We talk about regions, R, when we are making reference to the space between two genes.
Gene 1 -----(R1)----- Gene 2 --------(R2)------ Gene 3
P1 P2
P1 = recombination frequency between Gene 1 and Gene 2P2 = recombination frequency between Gene 2 and Gene 3⇒ P1 = (SR + DR) / N
⇒ P2 = (SR + DR)/ N
Where:
SR is the number of simple recombinants in each region, DR is the number of double recombinants in each region, and N is the total number of individuals.The genetic distance will result from multiplying that frequency by 100 and expressing it in map units (MU). One centiMorgan (cM) equals one map unit (MU).
In the exposed problem, we need to do the inverse way. We already have the order and distances between genes, and we need to get the recombination frequency, P.
We know that the order of genes is as follows,
unc-32 ------------- vab-7----------------- dpy-17
Distances are:
Region 1 = 10 MURegion 2 = 20 MUWe need to get the probability of obtaining a phenotypic unc-32 vab-7 + offspring from a cross between a heter0zyg0us fly (unc-32 vab-7 dpy-17/ + + + ) and the triple recessive nematode (unc-32 vab-7 dpy-17 / unc-32 vab-7 dpy-17).
Cross:
unc-32 vab-7 dpy-17 / + + + x unc-32 vab-7 dpy-17 / unc-32 vab-7 dpy-17
To get the genotype unc-32 vab-7 + , a simple recombination, SR, must occur in region 2.
So we need to get the simple recombination frequency in Region 2.
To do so, first we need to clear the following equation
Distance between vab-7 dpy-17 = P2 x 100 = 20 MU
20MU = P2 x 100
P2 = 20 / 100
P2 = 0.2
The recombination frequency in region 2 (P2) is 0.2.
Now, we need to get the simple recombination frequency in this region.
P2 = (SR + DR) / N
P2 = Simple recombinants Frequency + Double recombinants Frequency
R1 = 10 MUR2 = 20 MUDouble recombinants Frequency = 10% x 20% = 0.1 x 0.2 = 0.02P2 = Simple recombinants Frequency + Double recombinants Frequency
0.2 = Simple recombinants Frequency + 0.02
Clearing the equation,
Simple recombinants Frequency = 0.2 - 0.02 = 0.18
Simple recombinant frequency in region 2 will produce the following two chromosomes,
unc-32 vab-7 ++ + dpy-17So half of this frequency will produce one chromosome, and the other half will produce the other chromosome.
unc-32 vab-7 + ⇒ 0.09+ + dpy-17 ⇒ 0.09So, the probability of obtaining a phenotypic unc-32 vab-7 + offspring is 0.09 = 9%.
---------------------------------
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pls I need answers ASAP,thank you
air is made of ____and ____
Answer:
Air is made up of:
Nitrogen (78%)Oxygen (21%)Other gases (1%)Explanation:
Hoped this helped.
Ribosomes are produced in an area of the nucleus known as the
• Nucleolus
• Adenosine triphosphate
• Golgi apparatus
• Endoplasmic reticulum
list the steps of reasoning that Darwin gave to explain the process of natural selection
Answer:
variation,inheritance,high rate of populations growth,differential survival and reproduction
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In the bacterial CRISPR system, the crRNA performs which of the following functions?
The CRISPR-Cas system is a genome engineering tool to edit the genome of any species. The crRNA is a sequence complementary to the target DNA of this genome editing system.
The CRISPR-Cas genome editing system is a recently developed genome engineering tool, which can be used to edit the genome of virtually any species.
This genome editing system consists of a nuclease (Cas) protein that cuts the DNA at the targeted regions, and a single guide RNA (sgRNA), which contains a crRNA (17-20 nt) sequence complementary to the target DNA.
In consequence, the sgRNA guides to the Cas protein in order to cleave the genome at targeted nucleotide sequences.
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geoligest in egypt and ethiopia are comparing rock samples from rocks founf in two contries
What do you think happened to the light from the lightbulb as it passed through the spectroscopy telescope?
Answer:
through a tiny hole or slit in a metal plate to isolate light from a single area or object.
The light from the lightbulb, as it passed through the spectroscopy telescope, underwent a process of dispersion. This resulted in the separation of the light into its component colors, forming a spectrum.
When light from a source like a lightbulb passes through a spectroscopy telescope, it encounters a prism or a diffraction grating. These optical components disperse the light based on its wavelengths. As a result of dispersion, different colors that make up the light are bent by varying amounts, causing them to spread out.
This separation of colors forms a spectrum, known as a continuous spectrum. This spectrum acts as a fingerprint, revealing the unique composition of the source's light, enabling scientists to analyze the elements or molecules present in the source material.
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