(06.03 LC) Which of the following is an example of how HIV can be transmitted from one person to another? Contact between infected blood and a mucus membrane Contact between infected saliva and an open wound Contact between infected blood and skin Contact between infected saliva and lining of mouth

Answers

Answer 1

Answer:

i believe the answer is contact between a infected blood and a mucus membrane

Explanation:


Related Questions

Draw a cross section of a peach, and label the structures. What parts of the flower give rise to these structures

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Answer:

exocarpo  is synonymous with exocarp

endocarpo is synonymous with endocarp

mesocarpo is synonymous with mesocarp

semilla is synonymous with seed

Explanation:

In phase one, the plant's ovary begins to grow abruptly, this is where the embryo and endosperm affect their size, but if this ovarian growth is interrupted by an external factor, it determines the size of the future.

Then, the embryo and the endosperm could grow and undergo a process called sclerification, which is the hardening of the interior of the fruit, that is to say, the future formation of the seed or vulgarly called "pit". .

After this, the mesocarp, which is what is called the fleshy body or subglobose edible drupe, begins to grow.

The growth of the mesocarp is what gives the volume, weight and body to the fruit, so that after maturation it exceeds the strength of the branch and it falls from the tree.

Would you expect ribozymes in organisms that grow in very hot environments , such as hot springs or deep - sea vents , to have a high or low GC content ?

Answers

Answer:

yes I expect ribozymes in organisms that grow in very hot environments , such as hot springs or deep - sea vents.

root (b) A sugarcane is monocotyledon; therefore it has _______________________ root​

Answers

Answer:

it has fibrious roots

Explanation:

it has fibrious root because it has monocot leaf so, if there was decot leaf then it will be tap root

During the Paleocene-Eocene Thermal Maximum, when global surface temperatures spiked, we observe temperate forests ____________________, insect herbivory of temperature.

Answers

Answer:

The overview of the problem concerned is listed below.

Explanation:

Mostly during Paleocene Eocene Temperature Optimum, we consider temperate vegetation momentarily relocated towards the poles whenever global average surface temperature jumped, bug harvesting temporarily escalated, as well as coral reef crashed.The level of variations in climate or temperature was as sluggish as it is today, which suggests that such past occurrences are likely to overestimate the effects of rising temperatures nowadays.

Increase occur in the insect's population due to increase occur in global surface temperature.

During the Paleocene-Eocene Thermal Maximum, when global surface temperatures increase, we observe temperate forests having more population of insects due to favourable temperature for the growth of insects.

The productivity and distribution of forests could be affected due to change occur in the temperature, precipitation and the amount of carbon dioxide in the air. As the temperature increases the population of insects also increases which leads to increase in biodiversity of forest so we can conclude that increase occur in the insect's population due to increase occur in global surface temperature.

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. Buffer solution resists change to its pH when small amounts of an acid or an alkali are added to it. Buffer solutions can be used to keep the pH of a substance constant during an experiment. For example, if pH 5.5 buffer solution is added to a mixture of amylase and starch solution, the pH of the mixture will remain constant at 5.5. The student has the following buffer solutions available: 5.5, 6.0, 6.5, 7.0, 7.5 and 8.0. Describe how the student can adapt the tube experiment to investigate the effect of pH on the action of amylase.

Answers

Answer:

hey

Explanation:

what is adaptation give any four characters of aquatic plants​

Answers

Explanation:

Animals have special features that help them to live in a particular place. Therefore this features is called adaptation.

1] Aquatic plants have leaves that float on the surface of water.

2] Thier leaves are rarely have stomata.

3] Thier leaves can perform all the work without xylem.

4] They are usually lack cuticle layer in order to avoid excessive dryness.

Answer:

The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floating leaves and finely dissected leaves are also common. Aquatic plants can only grow in water or in soil that is frequently saturated with water.

Four characters of aquatic plants are as given below:

1) most aquatic plants donot need culticles or have thin culticles as cuticles prevent loss of water.

2) aquatic plants keep their stomata always open for they do not need to retain water.

3) on each side of their leaves are a number of stomata.

4) aquatic plants have less rigid structure since water pressure supports them.

Explanation:

I hope this answer help you.

What term is used to describe a retrograde flow of urine from the urinary bladder into the ureters that is the cause of recurrent urinary tract infections (UTIs)?

Answers

Answer:

Vesicoureteral reflux (VUR)

Explanation:

Answer:

The condition is known as Vesicoureteral reflux (VUR)

Explanation:

Vesicoureteral reflux (VUR) is a pathological condition caused by Urinary Tract Infections (UTIs) where urine flows back from the bladder into one or both ureters, and sometimes back into the kidneys. The condition is commonly seen in young children under 2 years of age, and infants.

Most children with primary VUR were born with an abnormal ureter, which is mainly seen as a defective valve between the kidneys and the ureters that does not close well, hence resulting in refluxes. Secondary VUR develops due to some pathological conditions affecting the urinary tract, like blockage of the urethra, causing reflux of urine. Defective bladder nerves can also lead to VUR.

Which of these sentences is true with respect to species?

Answers

where are you choices

This food web reveals that, as matter flows
through trophic levels,
A. matter from consumers, such as the green lynx
spider, is eventually recycled by decomposers,
such as a fungus.
B.matter from producers, such as the cutleaf daisy,
is immediately recycled by decomposers, such
as a bacterium.
C. matters from all organisms, such as the Bald
eagle, is dissipated at each level and none of it
is recycled.
D. matter from the Sun is recycled after many years
by consumers, such as a Bachman's sparrow.

Answers

Answer:

There is no food web attached to this question but it can be answered because matter flows uniformly through trophic levels in all food webs.

The correct answer is;

A. matter from consumers, such as the green lynx spider, is eventually recycled by decomposers, such as a fungus.

Explanation:

A food web is an interconnected series of food chain showing how organisms feed on one another to obtain energy. A food web always start with a unique set of autotrophic organisms i.e. capable of producing their own food called PRODUCERS. Producers such as the cutleaf daisy in this question create the organic matter via the process of photosynthesis, which gets transferred to organisms that feed on them called CONSUMERS e.g green lynx spider

Consumers are heterotrophic i.e rely on other organisms for source of energy. As they feed on other organisms and get fed on, the matter gets transferred until the last consumer dies. The dead matter in the dead organism gets decomposed by organisms called decomposers e.g fungi and it gets recycled back into the soil as nutrients for use by plants.

Therefore, dead matter from consumers, such as the green lynx spider, is eventually recycled by decomposers, such as a fungus.

Which enzyme is used in gluconeogenesis, but NOT in glycolysis? Group of answer choices PEP carboxykinase enolase (interconverts 2-phosphoglycerate and phosphoenolpyruvate)

Answers

Answer:

PEP carboxykinase

Explanation:

PEP carboxykinase is also known as Phosphoenolpyruvate carboxykinase. It is an enzyme which is used for the production of glucose from non-carbohydrate carbon substrates. This enzyme is used only in gluconeogenesis not in glycolysis because this enzyme helps in the production of glucose while glycolysis is a process in which the glucose  break down into pyruvate and ATP molecules.

Human actions often break large areas if forest or grassland into small remnant parcels that support fewer individuals and ae far apart from one another. Predict how gene flow, genetic drift, and extinction risk would differ between the original and the remnant populations.

Answers

Answer:

Gene flow will be restricted

Gene drift will be higher than in larger populations

Extinction rate will be increased due to the reduction in genetic diversity

Explanation:

Gene flow is defined as the transference of genetic material among populations. In isolated populations, the gene low is null and thereby they have different allelic frequencies, while populations that share genetic material tend to have the same allelic frequencies.

Genetic drift is the change in the allelic frequencies in a population as a result of random sampling. In small populations such as those living in parcels, the genetic drift is higher than in larger populations.

Extinction is the continuous declination in the number of organisms of a particular group (for example, a population or a species), that inevitably leads to the disappearance of this group. In small populations, the likelihood of extinction will be higher than in larger populations, due to the lesser genetic variation and higher genetic drift.

write down the effects of gravitational force ​

Answers

Answer:

The effects of gravitational force are :

i) The Sun's gravitational pull keeps our planet orbiting the Sun.

ii)The motion of the Moon is affected by the gravity of the Sun AND the Earth.

iii) The Moon's gravity pulls on the Earth and makes the tides rise and fall every.

iv) The Earth's gravitational force accelerates objects when they fall.

The free-energy changes of the individual steps in a pathway are summed to determine the overall free-energy change.
A. True
B. False

Answers

The answer is A. True

Studies of the relative efficacy or nonefficacy of a drug based on specific genotypes would be considered part of the field of

Answers

Answer:

Personalized genomic medicine  

Explanation:

Personalized genomic medicine is a field that uses genomics data to develop personalized technologies and therapies for clinical care. All people share a sequence homology level higher than 99%; however a very small fraction of the genome (lesser than 1%) contains genetic polymorphisms among individuals, and this variation is associated with the likelihood of suffering diseases, either by increasing or by reducing disease susceptibility. Personalized genomic medicine first identifies genetic variations and then develops new strategies and personalized drugs to treat genetic disorders.

Jeremiah is on a school trip to a forest preserve. According to the urban heat island effect, as Jeremiah leaves the city and heads toward the nature preserve, the temperature should (first drop-down) . That's because large cities (second drop-down) more heat than rural areas. When Jeremiah arrives at the preserve, he immediately notices the effects of solar radiation. The blacktop in the parking lot feels (third drop-down) the green grass where his class will eat their picnic lunch. →First drop -down options 1. Remain the same 2. decrease 3. increase Second drop-down options 1. absorb 2. transmit 3. reflect third drop-down options 1. hotter than 2. cooler than 3. same temperature as←

Answers

Answer:

2. decrease

3. reflect

1. hotter than

Explanation:

As Jeremiah will move towards nature preserve the temperature will decrease because heat once absorbed as energy is reflected by a temperature rise and large cities reflect more heat than rural areas. It is so because large cities have buildings and other structures that absorb fore heat and reflect more heat.

The blacktop will be hotter than the green grass because blacktop reflects more heat in comparison to green grass.

Hence, the correct answer is:

2. decrease

3. reflect

1. hotter than

Answer:

decrease

reflect

hotter than

Explanation:

fur color in mice is affected by a single gene the gene for fur color has two alleles: b that causes dark brown fur and b that causes light brown fur. What is or could be the genotyes of a mouse with dark brown fur

Answers

Answer:

(BB) or (Bb)

Explanation:

Given that (B) allele , is responsible for fur that is dark brown, and (b) allele is responsible for fur color that is light brown, the dominant allele is (B) allele for dark brown fur. Dark brown fur allele would always express itself over the recessive allele, (b).

For a mouse that has dark brown fur, the possible genotype it could have is either (BB) => 2 dominant allele, or (Bb) => 1 dominant allele and a recessive allele. The dominant allele would always express itself even in the presence of the recessive allele.

Most physical characteristics are inherited. Scientists have discovered several genes that contribute to human fatness, particularly genes that regulate the production of specific ____________ , such as ____________ , which stimulates hunger, and ____________ , which reduces hunger.

Answers

Answer:

hormones; ghrelin; leptin.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

Heredity refers to the transfer of traits (specific physical characteristics) from the parent of a living organism to her offspring through sexual reproduction or asexual production. Some examples of hereditary traits are dimples, tongue rolling, baldness, handedness, freckles, curly hair, color blindness, height, etc.

A gene can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).

Over the years, scientists have discovered several genes that are known to contribute to human fatness (body weight), especially genes that are saddled with the responsibility of regulating the production of specific hormones, such as ghrelin, which stimulates hunger, and leptin, which reduces hunger.

Explain why succession allows an ecosystem to recover after a primary disturbance.

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Answer:

succession allows an ecosystem to recover from a primary disturbance because theorganisms that moves in helps to rebuild the soil that may have been affected.

A bird species is known for its unusual mating behavior. Not much is known about the cause of this behavior. What could you study to better understand the proximate basis of this behavior

Answers

Answer:

check all that apply brain structure mating behavior in related species hormones

Those species that can fly is known as a bird. The bird has these special features:-

Pneumatic boneskneeled sternum

The mating of the two different species of bird is called mating. Many birds have different and unusual behavior of the species. They do these behaviors in order to survive in nature.

For example- kokoo bird lays its egg in a crow nest for a hatching period.

These behavior are not inherited or genetic. we could study why the bird is doing this strange behavior. what is the natural condition in which they are doing it.

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What processes can change igneous rock into sedimentary rock?

Answers

Answer: Erosion

Explanation:The process of erosion and depositing rock grains (also known as sedimentation) can change igneous rock into sedimentary rock.

You cross a plant with red flowers with a plant with white flowers. Both plants are pure-breeding. All the offspring have pink flowers. What allele relationship does this display? codominance multiple alleles incomplete dominance pleiotropy

Answers

C. Incomplete dominance.

Explanation:

Incomplete dominance is the blending of alleles. If a plant with red flowers and a plant with white flowers produce offspring, then the flowers will be pink. Red and white mixed together will be pink, the alleles blended.

Codominance is where both traits are present, no blending occurs. If a plant with red flowers and a plant with white flowers produce offspring, the flowers will be both white and red. The flower may be white with red spots, or vice versa. Both alleles are present in the flower.

In this case, it is incomplete dominance, as the offspring is a mix of the parents. The alleles blend and the offspring is pink.

Answer:

incomplete dominance

Explanation:

gradpoint

Assume that you have an antimicrobial agent specific for each of the targets listed below. Indicate which type of microbe would be most susceptible to the agent.
A. All bacteria
B. Gram-positive bact.
C. Gram-negative bact.
D. Viruses
E. All bact. and viruses

Answers

Answer is given below

Explanation:

If you have an antimicrobial agent specific for each of the targets listed below

all bacteria -                     glycolytic enzymes and membrane proteinsgram-positive bacteria -   peptidoglycanGram-negative bacteria   ceftiaxon, cefpodoximeviruses -                             envelope proteinsall bacteria and viruses -   nucleic acids

Old meristematic cells lose the capacity to divide and transform into ______ .

Answers

Answer:

Permanent Tissues

Explanation:

Permanent tissues: are derived from meristematic tissue once they lose the ability to divide. They are classified as simple and complex tissues.

"I can be single celled or multicelled. I can reproduce sexually or asexually. I can be heterotrophic or autotrophic. I am Eukaryotic. What am I?"

Answers

Answer:

The correct answer is a protist.

Explanation:

A eukaryotic organism, which cannot be categorized as an animal, plant, or fungus is known as protists. They are majorly unicellular, however, some of them are multicellular like algae. Some of the protists can attain energy for living by consuming other organisms, that is, they are heterotrophic. While some obtain energy from the surroundings via the process of photosynthesis, that is, they are also autotrophic.  

The protists are mainly found in water, however, some of them also thrive in moist soil. These species can be seen anywhere on the Earth, where there is liquid, even within human beings. The reproduction is some of the protists takes place sexually, that is, with the help of gametes, while in some of the protists asexual reproduction also takes place, that is, by the process of binary fission.  

Which type of gene is only expressed if there are two genes of that type? (1 point)
O recessive gene
O Co-dominant gene
O dominant gene
O inactivated gene

Answers

The recessive gene is only expressed if there are two alleles

You put 10ul (one loopful - the loop is calibrated for this volume) of a 0.03 ug/ul pGLO solution into the DNA tube. Calculate the ug of DNA you put into the tube.

Answers

Answer:

The µg of DNA put into the tube is 0.3 µg.

Explanation:

Here in this question, we are interested in calculating the µg of DNA put into the DNA tube.

This can be calculated using a mathematical formula.

Mathematically;

Total amount of DNA in µg = concentration in µg/ µl X volume in µl

= 10 µg/µl X 0.03µl = 0.3 µg.

Which area of the respiratory system is vascularized with the richest capillary network in the body?​

Answers

Answer:

There are from 200-500 million alveoli (mean diameter = 200 micrometers) in adult human lungs

Explanation:

The epithelial cells of the alveolar septum are markedly thinned and the capillary network immediately beneath the epithelium is the richest in the body.hope this helps you :)

Answer:

The answer is alveoli

A scientist examines a cell using a microscope and notes that the cell has a large number of mitochondria and ribosomes. Within the cell are proteins that can contract. Which of the following is the most likely cell type?

Answers

Muscle cells can contract in response to stimuli. Moreover, muscle cells also have a large number of mitochondria and ribosomes for energy requirements and protein synthesis, respectively.

All muscle cells can contract by the interaction of myosin and actin proteins, which form myofibrils, the repeating molecular structure of sarcomeres (the sarcomeres are the functional and structural unit for contraction).  

The globular heads of myosin bind to actin filaments, forming cross-bridges that cause the muscle cells to contract and expand.

Ribosomes are organelles required for protein synthesis. Muscle cells have a lot of proteins, especially actin and myosin myofibrillar proteins, which are responsible for muscle fiber structure.

Mitochondria are the energetic centers of the cell. In consequence, thousands of mitochondria can be observed in cells with high energy requirements such as muscle cells, which release a large amount of energy quickly for movement.

Mitochondria, using oxygen available within the cells and metabolize food biomolecules to generate ATP (the energy coin of the cells) that power up the cell.

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An element has an atomic mass number of 16 and an atomic number of 7. The element has protons and neutrons. Reset Next

Answers

the answer of this question is answer b

a grass hopper movE from place to place when it muscles

Answers

Grasshopper contract and relax itz muscles to move

Answer:

Explanation:

A grasshopper's hind legs function like miniature catapults. In preparation for a jump, the grasshopper contracts its large flexor muscles slowly, bending its hind legs at the knee joint. ... The grasshopper then relaxes its leg muscles, allowing the spring to release its energy and fling the insect into the air

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