When the huge polar caps on mars form every winter, they are made chiefly of ________?

Answers

Answer 1

When the huge polar caps on mars form every winter, they are made chiefly of dry ice, also known as frozen carbon dioxide.
There are two permanent polar caps on Mars, one in the north of the planet, and one in the south. During the summer, however, these polar caps sublimate, which means that they turn directly to gas and go into the atmosphere.

Related Questions

When a child is born with a chromosomal mutation, when did the mutation occur?

Answers

The mutation occurs during meiosis that produces sperm cell and egg cell or possibly both. The chromosomal mutation when a child is born it involves the long segments of DNA that can cause not likely good to the child it may be a deletion, insertion, and inversion of the DNA.

Apex answer is During Meiosis

The term andropause, or male menopause, is sometimes used to refer to _____.

Answers

The answer is the gradual decrease in sexual activity in some males as a result of illnesses and losses. Male menopause involves a drop in testosterone making in men who are age 50 or older. It’s often associated with hypogonadism. Both conditions involve lowered testosterone levels and similar symptoms.

Human blood type AB is an example of which pattern of inheritance?

incomplete dominance

dominant/recessive

heterozygous

codominance

Answers

The correct answer would be Dominant/Recessive.

Blood type AB exemplifies codominance, where both IA and IB alleles are equally expressed. The ABO system is also a case of multiple alleles inheritance, with three alleles involved. This differs from incomplete dominance, which is not exhibited in blood type AB.

Human blood type AB is an example of codominance. In the ABO blood group system, alleles IA (encoding antigen A) and IB (encoding antigen B) are both expressed equally in the phenotype of the heterozygote, resulting in blood type AB which displays both A and B antigens on the surface of red blood cells. This is different from incomplete dominance, where the phenotype is a blend between the two alleles. Additionally, the ABO blood types are an example of a multiple alleles inheritance pattern since there are three alleles involved (IA, IB, and i), which increases the possible blood types.

The ABO blood group antigens are an example of the complexity of genetic inheritance, showing both codominance and a multiple allele system, but not incomplete dominance. It is important to understand these concepts in genetics to grasp how different traits are passed from parents to offspring.

A patient undergoing chemotherapy for lymphoma (cancer) was advised to get rid of the house plants in her home. what is the possible reasoning behind this suggestion?

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Chemotherapy patients are advised against gardening, planting or any form of contact with soil. The soil in the pots is a huge source of bacteria and mold, which presents an unnecessary danger to the patient. Removing indoor houseplants and flowers are also advised because these items tend to shed mold in the air and can be a source of infection. It is also important to not keep cut flowers inside the house because the water in the vases can harbor infectious bacteria and can evaporate in the air and spread to the patient.

Explain how poaching can contribute to the over utilisation of a species

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Poaching refers to the illegal taking of wildlife, in violations of laws that regulate wildlife hunting. Examples of poaching includes; killing an animal out of season, hunting without appropriate licensing, using prohibited weapons to hunt animals, etc.
Over utilization of a specie refers to the near-extinction or extinction of a particular species as a result of incessant killing. Poaching can lead to a situation where a particular animal specie will be completely wipe out as a result of excessive, inconsiderate killing. The extinction of a particular animal specie may have negative effects on the local environment.

A client is receiving total parenteral nutrition (tpn) through a central venous access device. the nurse discovers that the tpn bag is empty and the next bag has not been received yet from the pharmacy. what is the most appropriate action for the nurse to take?

Answers

When the nurse notices the TPN bag is empty and the bag needs to be changed, she needs to call the pharmacy right away. While waiting for the pharmacy or her supervisor to deliver a new bag, she will hang a different solution that will work until until the new bag is delivered. She will use a bag of 10% dextrose in water. This can be used as a temporary solution.

Answer:Miguel is a Mexican citizen and Javier is a Cuban citizen. Both Mexico and Cuba are holding elections soon. How will Miguel's experience be different from Javier's?

Explanation:

If a patient's mechanical ventilator malfunctions, you should remove the patient from the ventilator and:

Answers

When a patient's mechanical ventilator malfunctions, you should take out the patient from the ventilator and “begin ventilations with a bag-mask device”. If ever a mechanical ventilator malfunctions, you should start ventilations with a bag-mask device or also known as bag-valve masks. While, you are ventilating a patient, ask help from others to seek medical control, to control the situation properly.

What was Mendel trying to determine?

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Mendel tried to determine the 10 Laws of Conservation

The method for determining exercise intensity by estimating it without measuring it is called

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The method for determining exercise intensity by estimating it without measuring it is called rating of perceived exertion(RPE). In this method, you will estimate a number from a scale of 6(no exertion) until up to 20 (maximal exertion).

You can also try talk test but it more qualitative. In this method, if you can sing that means the exercise is light, talking is medium, if it just word is high intensity.

Because minerals and vitamins have no energy value, they can be disregarded when calculating a day's total energy intake.

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The statement above is TRUE.
They can be disregarded because they do not have energy value that they can contribute to the summation of the total daily intake. But this does not mean that they will not be taken in the diet.
Although minerals and vitamins have no energy value, they are very important parts of balanced diet and a diet which lack these components can not be properly handle by the body, this is because, most times, these components are needed in the body for maximum utilization of the energy foods.

Name the surfaces of the body where friction or papillary ridges are found.

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Papillary ridges or friction ridges are the arcs, whirls and loops found on the outer dermis of the skin. In lay man's term, these are your fingerprints. Papillary ridges in the body are found in your palms, fingertips, soles of your feet and your toes, as well.

A more or less circular ring of mushrooms appears in your yard, apparently overnight. the circle is several yards in diameter. the most likely explanation for this circle of mushrooms is that:

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The mushrooms are actually all part of the same organism. They have mycelium, which is the vegetative part of the fungus consisting of branching hyphae, connected to and radiating from a single germinated spore.

An alcohol-related illness for infants born to mothers who drink during pregnancy is

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The answer is fetal alcohol syndrome. It is a condition that an infant could experience when the mother who is pregnant is ingesting alcohol during her pregnancy. It could cause defects and disorder to the infant that it will make the infant to be born in a normal way. This could be classified as to mild or severe depending on the situation.

why can a wolf be considered both secondary consumer and tertiary consumer

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A wolf can be considered as both a secondary and primary consumer because they feed on both primary and primary and secondary consumers. As a secondary consumer, wolves can feed on plant eaters [primary consumers] such as elk which is an herbivore. As a tertiary consumer, wolf feed on secondary consumers such as deer.

Reflexes that activate muscles on the opposite side of the body as the stimulus are called

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The answer is contralateral. It means that the reflex happens on the contradictory side of the body from the stimulus. To produce this reflex, divisions of the afferent nerve fibers cross from the stimulated side of the body to the contralateral side of the spinal cord. There, they synapse with interneurons, which, in turn, excite or prevent alpha motor neurons to the muscles of the contralateral limb.

Goldenrod gall flies lay their eggs in the goldenrod plant. the fly larvae cause the plant to form a gall, a swollen growth of plant tissue. large galls tend to be pecked open and their larvae eaten by birds. small galls are more frequently parasitized by tiny wasps, whose larvae eat the fly larva and take over the gall. this complex situation implies that __________ is acting on gall size.

Answers

Goldenrod gall flies are also known as goldenrod ball gall maker, these flies live their entire life on goldenrod plants. It is a species of fly native to North America.

Goldenrod gall flies lay their eggs in the goldenrod plant. The fly larvae cause the plant to form a gall, a swollen growth of plant tissue. Large galls tend to be pecked open and their larvae eaten by birds. Small galls are more frequently parasitized by tiny wasps, whose larvae eat the fly larva and take over the gall. This complex situation implies that Stabilizing selection causes no change in the average of the population; extremes (large and small galls) become less common is acting on gall size.

Drug-resistant populations of microbes arise when

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There is variation within the population, due to a mutation. The selection pressure is the drug. The microbes that have the advantageous gene which makes them resistant to the drug are selected for, and reproduce passing on the gene, increasing its allele frequency within the population over time. However, the microbes that do not have the advantageous gene, cannot survive and their number decreases within the popullation.

Final answer:

Drug-resistant microbes arise from the survival and reproduction of microbes that have developed resistance to antibiotics, often due to an incomplete course of treatment. They then create new populations of resistant microbes.

Explanation:

Drug-resistant populations of microbes arise when those microbes are exposed to antibiotics but are not completely killed off. This can happen when a course of antibiotics is not fully completed, allowing some bacteria to survive and develop resistance. When those resistant bacteria reproduce, the resulting offspring also carry the resistance, leading to a whole population of bacteria that cannot be killed by that specific drug. This is why it is essential to always complete a full course of antibiotics.

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A client states that she wishes to use the calendar method of birth control. the nurse concludes that the client understands how to calculate the beginning of the fertile period when she states, "i will:

Answers

The correct answer is "I will subtract 18 days from the length of my shortest cycle."
If you want to calculate when your fertile period will begin, the best way to do that is just to subtract 18 days from the length of your shortest cycle. If you subtract 11 days from your longest cycle, you will get the last day, and not the first one.

Caladium (elephant ears) plants, if eaten, inhibit salivary amylase because they produce a chemical that binds to the active site of amylase. this is an example of

Answers

The inhibition of enzymes can occur in three ways: competitive, noncompetitive and substrate inhibition. The enzyme here is the amylase. The substrate could be the chemical and the nutrients that could be broken down from the plants. In this case, the chemical is a competitive inhibitor, since it 'overtakes' the nutrients in the active site of the enzyme. Then, the enzyme could not do its job of digesting the plant.

The study of the properties of matter and how matter changes is called

Answers

Chemistry is the study of properties of matter and how matter changes .

Final answer:

Chemistry is the study of the properties of matter and how matter changes. This study includes the concepts of chemical changes, which refers to the transformation of one kind of matter into another, and chemical properties, which describe the behavior of matter in relation to changes it undergoes when it transforms.

Explanation:

The study of the properties of matter and how matter changes is referred to as Chemistry. Chemistry is a physical science that deals with the structure, composition, properties, and reactions of matter. Furthermore, it also encompasses the concepts of chemical changes and chemical properties. A chemical change refers to a process that changes one kind of matter into another kind, producing a different kind of matter from the original. Chemical properties, on the other hand, describe the behavior of matter related to changes it undergoes when it transforms to another kind of matter.

For instance, if you heat sugar, it undergoes a chemical change and transforms into caramel. The change in taste, color, and other properties from sugar to caramel is part of the chemical properties involved in the chemical change.

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F a finch population with heritable, variable beak size and shape arrived on an island on which only large seeds were available as a source of food, describe the natural selection process that would follow.

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the populations of finches with the larger beaks would thrive and therefore be naturally selected for

The role of the coronary arteries is to __________.

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is to manage the blood circulation to the heart muscle. The Left main coronary artery (LMCA) distributes blood to the left side of your heart muscle and the Right coronary artery (RCA) distributes blood to the right atrium, right ventricle, sinoatrial (SA) and atrioventicular (AV) nodes, which controls your heart rhythm.

Glycoproteins on the cell membrane would prevent someone with type a blood from accepting type b blood.
a. True
b. False

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I believe the statement is true. Glycoproteins on the cell membrane would prevent someone with type A blood from accepting type B blood. Glycoproteins are type of proteins that has an oligosaccharide chain or glycol that is covalently bonded to a polypeptide side-chain. This molecule is involved in almost all of the processes in a cell. It functions in the reproductive system, immune system, protection of the body and communication of the cells. It is also important for the red blood cells. Our blood types are named according to the type of glycoprotein that is present in our red blood cells. With this, it helps the body identify that your blood cells are yours and are not foreign cells.

Mesenchymal cells are most commonly found in ________ connective tissue.

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We have that the Mesenchymal cells are most commonly found in ____Embryonic connective tissue.____ connective tissue.

Embryonic connective tissue.

Mesenchymal cells

Generally, these are cells from sources like the bone marrow and amniotic fluid, in adult stem cells that can differentiate into other types of cells.

Hence, The reply to this query is what we known as the Embryonic connective tissue.

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Final answer:

Mesenchymal cells are most commonly found in embryonic connective tissue. They are multipotent stem cells that can differentiate into any type of connective tissue cells. These cells play a vital role in the formation of diverse body tissues, such as bones, cartilage, and fibrous connective tissues.

Explanation:

Mesenchymal cells, a type of multipotent adult stem cell, are most commonly found in embryonic connective tissue. These cells can differentiate into any kind of connective tissue cells required to restore and heal damaged tissue. They originate from the mesenchymal stem cell line, the first connective tissue to develop in the embryo. Clusters of these cells are scattered throughout adult tissues.

Moreover, mesenchymal cells contribute to the formation of diverse types of connective tissues. They originate withinside the mesodermal germ layer and differentiate from mesenchyme and hematopoietic tissue in the bone marrow. They are involved in the formation of bones, cartilage, and fibrous connective tissues, playing a vital role in bodily growth and development.

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When an olfactory receptor is stimulated, what type of change must happen before it signals the brain that a change has occurred?

Answers

When an olfactory receptor is stimulated, a generator potential must be produced by the receptor before it signals the brain that a change has occurred.

In order to reach the threshold of the cell, a graded potential must be generated by the neuron of the olfactory receptor. At threshold, an action potential will be generated, referred to as the generator potential. The brain then receives this generator potential in order to decode it.

A client who just returned from a cardiac catheterization reports to the nurse that the pressure bandage on the right groin is tight. what action should the nurse take?

Answers

The nurse should assess the pulses that are distal to the dressing. This is necessary in order to assess the regularity, strength and rate of the pulses. A strong pulse reflects a good perfusion status. If the pulse is weak, that means that circulation is been hindered.

An injection of a concentrated salt solution into the circulatory system would result in __________.

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An injection of a concentrated salt solution into the circulatory system would result in crenation of the red blood cells.
Crenation is a feature of red blood cells. A normal human red blood cells are round, with an indented center, crenation of red blood cells happens as the result of the process of Osmosis. After that the shape of red blood cells shrink, have notched appearance.

What body cavity contains the organs of the reproductive and excretory systems?

Answers

The answer is Pelvic cavity.

Upon assessment of a patient with myasthenia gravis, the nurse observes drooping of the upper eyelids. what is this finding is known as?

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The finding is ptosis. Ptosis is an abnormal finding because it is usually observed with drooping of upper lids. The inward turning of the lower lid is called as entropion while the outward turning of the lower lid is termed ectropion. The constriction of the pupil is called miosis that is often caused by medications.

The initial organisms on earth were essentially prokaryotic heterotrophs. how did they obtain their energy?

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The initial organisms on earth were essentially prokaryotic heterotrophs. They obtained their energies through organic molecules' breakdown.

The translation of protein in these creatures could start while the process of transcription is still happening.

These creatures invested no energy in the off springs. They reproduced really fast.

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