A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for an
extended period of time. This information suggests that the reproductive cycle of the HIV virus is —
1. lysogenic, because the virus develops over a long period of time
2. lytic, because the virus causes an autoimmune disease and eventually death
3. lysogenic, because the virus primarily affects older people
4. lytic, because of the quick onset of symptoms after infection
Why is water important for living organisms?
Answer:
. ... . ....
What is the role of deoxyribonucleic acid (DNA) in organisms?
Answer:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.
Explanation:
hope you like my answer
Answer:
The DNA carries your "information" about yourself and contains the biological instructions that make each species unique in their own ways
Explanation:
I really dont know if this will help but let me know
what happens in the metaphase
Answer: Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. ... During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. During this stage in human cells, the chromosomes then become visible under the microscope.
which enzyme is responsible for creating a primer that allows the DNA replication process to start
Answer:
Primase
Explanation:
Primase: the enzyme responsible for initiating synthesis of RNA primers on the lagging strand during DNA replication.
Answer:
Primase
Explanation:
What's a energy pyramid
Answer:
it's the way energy moves up through the trophic levels. the higher the level you are the less energy there is.
Explanation:
List down 5 evidence of exogenic processes and show how it affects or how it is affected by human activities.
Answer:
Mass wasting has drastic effects on human and animals life in the form of landsliding , earthquakes . Deposition is the pres in which sediments , rocks and soil are added land mass . A positive effect of deposition is that it creates new land . And negative effect is it takes away new lands .
The five (5) evidence of exogenic processes on Earth's surface include the following:
1. Weathering.
2. Stripping.
3. Erosion.
4. Mass wasting.
5. Deposition.
Exogenic processes can be defined as the processes that occur at or near the surface of planet Earth due to the action (influence) of exogenic forces or geomorphic agents.
The five (5) evidence of exogenic processes on Earth's surface include the following:
1. Weathering: the removal of various minerals from rocks causes depletion in oil and gas reserves that may be available for human consumption.
2. Stripping: it involves the removal of essential chemical elements and components from precious stones and landform such as a mountain.
3. Erosion: this causes flooding and washing away of various soil nutrients and as such affects agriculture.
4. Mass wasting: it moves rock debris, soil nutrients, and regolith downward, which are substances that are useful for certain human activities such as during mining.
5. Deposition: it is a consequence of erosion and it result in the laying down of sediment on a landform or landmass.
This sometimes make the foundation of buildings stronger to withstand stress.
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Living in or produced by the ocean
. Purification
. Recycling
. Biodiversity
. Oceanic
. Terrestrial
The leaves of a plant absorb sunlight in order to help the plant undergo photosynthesis.
A plant with large, broad leaves would likely be able to absorb more sunlight than a plant with small, narrow leaves. The broad-leafed plant would therefore be better suited for living in an area that does not receive much sunlight.
Which plant would likely live in a shady area which only receives sunlight for a small portion of the day?
A.
none of these
B.
plant Z
C.
plant Y
D.
plant X
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Explanation:
you're probably bored huh!
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what's your name?
age?
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3. Which of the following is the reactant of photosynthesis?
Answer: i dont see a question but The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll,
Explanation:
im not sure if you need this but while the products are glucose (sugar), oxygen and water.
 The tool that measures air pressure is called what?
Answer: A barometer !
Explanation:
Hoped this helped ! :)
what if living cells released all their energy at once
Answer:
they will lose their energy and die
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Akshay decides one day to run a marathon without any training. After 10 minutes your lapsed and akashay, has run half a mile, he begins to get cramps in his thigh he's also breathing very rapidly what is causing the cramps on his legs?
Answer:
Lactic acid accumulation in the leg muscles
Explanation:
Muscle cramps are painful feelings caused by sudden contractions of the muscle. Cramps are caused by several reasons, however, based on the description of Akashay's activity, it is caused by ACCUMULATION OF LACTIC ACID in the leg muscles due to strenuous exercise.
According to this question, Akashay decided to run a marathon without any prior training. However, he started to get cramps on his thigh coupled with rapid breathing. There is a lack of oxygen in his cells, hence, anaerobic respiration was used leading to the formation of lactic acid. The buildup of lactic acid is what causes the painful sensation called CRAMP.
Demonstrate the process of osmosis in a living plant material
Answer:
To demonstrate osmosis by this experiment an egg is taken. On the pointed side of the egg a small hole is formed and all the white and yellow matter of the egg is taken out through this hole. Now the empty egg is placed in the dilute solution of hydrochloric acid (HCl), so that the hard shell of the egg constituted of calcium carbonate is dissolved in it
Explanation:
.
Could you help me figure this out?
The cilia serve to transport dust and other foreign particles, trapped inmucous, to the back of the nasal cavity and to the pharynx. There the mucus iseither coughed out, or swallowed and digested by powerful stomach acids. After passing through the nasal cavity, the air flows down the pharynx to thelarynx.
Describe one advantage prokaryote have over eukaryote cells?
Answer:
Prokaryotes have the most primitive and simplest form of the cellular structure. This advantage the prokaryotes advantages over the eukaryotes in quick reproduction and easy adaptation to any new environment. ... An advantage of eukaryotic cells over prokaryotic cells include compartmentalization in the form of organelles.
Which coastline should have the largest waves? The arrow represents wind direction.
A.
B.
C.
D.
What was the name of the supercontinent 2million years ago?
What is so special about the Cooper's hawk nucleus.
Answer:
Cooper's hawk is a medium-sized hawk and largish for an Accipiter. Compared to related species, they tend to have moderate-length wings, a long, often graduated or even wedge-shaped tail and long though fairly thick legs and toes.
Make a claim about whether the sun's rays are mechanical or electromagnetic waves. Summarize evidence to support this claim and explain your reasoning.
Answer:
Se explanation
Explanation:
Mechanical waves are waves that require a material medium for propagation e.g sound waves and waves on a spiral spring.
Electromagnetic waves do not require a material medium for propagation. They can travel through space.
The light and heat of the sun are far away in outer space yet they reach us on earth. There is no intervening medium between the earth and the sun that conducts its rays to the earth. As a result of this, we can conclude that the rays from the sun are electromagnetic waves.
For this cell division, you can see that 4 daughter cells are made that have half the genetic information as the original. What type of cell division is this?
a) Diffusion
b) Mitosis
c) Meiosis
d) Photosynthesis
Answer:
The cell division where 4 daughter cells with half of the genetic information of the original are obtained is meiosis (option c).
Explanation:
Meiosis is a type of cell division through which sex cells or gametes are obtained. It is a reductive division, since the daughter cells resulting from the process contain half of the chromosomal charge with respect to the original one.
In the process of meiosis, four haploid cells are obtained from a diploid cell, each of which is involved in the reproduction of the species. This mechanism of division occurs in two stages, called meiosis I and II.
The other options are not correct because:
a) Diffusion: it is a passive trans-membrane transport mechanism.
b) Mitosis: is the cellular division of somatic cells, where the result is two daughter cells identical to the original.
d) Photosynthesis: is the mechanism by which plants obtain energy and nutrients, from solar energy.
10 POINTS QUESTION: Objects of different masses are suspended from a height. Which combination of features will have the greatest gravitational potential energy?
A. high mass and high height
B. high mass and low height
C. low mass and low height
D. low mass and high height
Answer: high mass and high height
Explanation:
The gravitational potential energy is refered as the potential energy that has to do with the energy in a particular object due to the height of that object.
With the above explanation, when objects that have different masses are suspended from a height, the one that will have the greatest gravitational potential energy will be the one with a high mass and high height.
Therefore, the correct option is A.
how does water get into the aquifer? i will mark branliest if you answer correct!
Answer:
Water gets into an aquifer from the land surface
Answer:
Water gets into an aquifer from the land surface. Typically, precipitation falling onto the Earth's surface soaks into the ground and flows down to the water table.
Explanation:
Most wells do not get their water from underground rivers, but instead get the water from aquifers. Aquifers are layers of rock and soil with water flowing through their small pores. ... New water, such as from rain or melting snow, drips down into the ground through the pores and cracks in the rocks and soil. Groundwater is transported through aquifers because of two main reasons: gravity and pressure. In unconfined aquifers, which we concentrate on because they are more likely to be contaminated, water always flows from high points to low points because of gravity.
What happens as changing global temperatures affect polar ice?
Answer: OMG THIS IS SOMETHING I KNOW ABOUT!! OKAYYY. When the global temperatures affect the polar ice, the ice start to melt. If the ice melts then the polar bears could loose their home, and would not have any other place to live. Polar bears need a very cold place to live, because it's suitable for them. Umm also The polar ice could eventually flood some parts of the earth causing a global flood!!
Explanation: Also if they have any left, sign the petition to save the polar bears.... they need help fastt! also, they (trump) want to drill into the ice to get some type of "oil" out the ice!! Please they need help!
Which of these changes to fuel consumption would lessen human
impacts on global climate?
Select one:
A) Decreasing research of all wind or water-based electricity generation technologies
B) Switching from coal to natural gas or nuclear energy to generate electricity
C) Increasing electricity production from coal
D) Banning any form of carbon emissions trading programs
Switching from coal to natural gas or nuclear energy to generate electricity will lessen human impacts on the global climate.
What is climate change?It is the changes to climate brought about by anthropological emission of greenhouse gases.
Greenhouse gases are emitted from human actions such as the burning of coal, removal and burning of forest layers, etc.
Thus, in order to lower human impacts on climate, replacing activities such as the burning of coal with clean technology such as nuclear energy to generate electricity would go a long way.
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Determine the amino acid chain that would result from the sequence AUG-CCC-GGA-UUA-UAG.
Answer:
methionine-proline-glycine-leucine-stop
Explanation:
Using an amino acids chart, you can line up the 3 bases in each section to find the protein chain that corresponds. The stop at the end marks the end of protein synthesis, which ends the sequence.
The compound comprising carboxylic and amino groups is called amino acids. They are vital for the formation of proteins in the cells.
Sequences are read in the three pairs of codons in the form of triplets to form a form an amino acids sequence.
The amino acid sequence that will be formed from the given sequence AUG-CCC-GGA-UUA-UAG will be:
methionine-proline-glycine-leucine-amber
AUG is the start codon which also codes for the amino acid methionine.CCC codes for the amino acid proline and its one-letter code will be P.GGA is glycine and is abbreviated as G.UUA codes for leucine and is represented by U.UAG is the amber or the stop codon which is responsible for terminating the sequence.Therefore, Met-Pro- Gly- Leu- Amber is the amino acid sequence.
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how does climate and vegetation vary with latitude and elevation?
Answer:
Climate and vegetation vary with latitude and altitude of an area. Latitude measures distance from the equator; altitude measures elevation above sea level. ... Deserts have little precipitation and little vegetation. They are found in tropical, temperate, and Polar Regions.
The climate and vegetation may significantly vary with the latitude and elevation. This is because as elevation increases the temperature decreases gradually that do not favor the actual growth of vegetation.
What is Climate?Climate may be defined as a type of weather conditions that are persuading in any geographical location for a long period of time. In a more simple sense, it is characterized as the long-term pattern of weather in a particular area.
Latitude estimates the distance from the equator part of the earth and goes through the tropical, temperate, and colder regions of the earth. The vegetation is typically reduced with increasing the altitude or elevation with respect to the sea level.
It may also be noticed that the vegetation may alter with respect to the geographical location of the whole earth. It was never found to be completely absent.
Therefore, the climate and vegetation may significantly vary with the latitude and elevation.
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Which of the following is an example of a negative tropism?
A. stems and leaves growing upward
B. leaves curling when touched
C. roots growing downward
D. leaves turning toward the light
Please help ASAP
Answer: B because leaves curling when touched is a negative tropism
Explanation: