Answer:
d.class
Explanation:
All living organisms were grouped into a system of classification comprising of 7 levels i.e. Kingdom, Phylum/Division, Class, Order, Family, Genus, and Species. Organisms grouped into the same level of classification has something in common.
In this question, a snake, frog or toad are different species of organisms. They all belong to the same Kingdom, which is Animalia. Snakes, toads and frogs are also commonly grouped into the Phylum Chordata because they all possess a backbone.
However, the next level of classification, which is CLASS, is the first to differentiate the snake from a toad or frog. Snakes belong to the class: Reptilia while toads and frogs belong to the class: Amphibia i.e. animals that can live on both land and water.
Answer:
The classification level that would first differentiate snakes from a frog or a toad is the Class.
Both animals belong to the Animal Kingdom, both also belong to the Phylum of Chordata.
However, when it comes to Class, the snakes belong to the Reptilia, while the frogs belong to the Amphibia.
Kindly note that when it comes to levels of classification in the animal kingdom, there are 7 levels namely
Kingdom Phylum or division ClassOrderFamilyGenus, and Species. The largest group is the Kingdom while and Species is the smallest.Cheers!
Question 8 of 10
The term carbon footprint refers to the amount of carbon dioxide:
A. broken down due to a person's activities.
B. given off due to a person's activities.
C. stored by a person.
O D. consumed by a person.
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Answer:
1 B carbon footprint refers to the amount of carbon dioxide given off due to the activities of particular individuals, organization or community
Which structure of a paramecium is analogous to a “reserve copy” of all the cell’s genes
Answer:
micro nucleus
Explanation:
Slowing Down Global Warming As Hite and Seitz (2016) discuss in Chapter 5: Climate Change, reputable scientific studies continue to show that the Earth is warming at an unsustainable rate because of a rise in the release of CO2 and methane gases. What is the relationship between population increases and climate change
Answer:
The increasing level of all the facilities like transportation, production, human waste, and developing new spaces for human beings among others are some of the most essential features of climate change. Thus, the demand for novel products, space, and facilities would also enhance with the increase in the population. This signifies that with the enhancement in the facilities, the environment would get influenced, which would eventually influence the climate.
There would be more emission of carbon dioxide and thus more pollution would develop with the increase in the population of human beings, this further would add up in climate change and global warming. Thus, there is a need in the control of the human population, however, technology is also important in helping humans to sustain a better life. This technology should be advanced and well-equipped so that our climate and environment exhibits no deleterious effects.
Novel technologies like the use of renewable energy, green building, prudent application of resources, and others would also assist the humans in sustaining the environment.
In cell biology, what does the word queue describe?
Answer:
In cell biology, the word Queue describes the long arm of a chromosome.
Explanation:
The long arm of a chromosome is termed the q arm. All human chromosomes have two arms; the p arm which is the short arm and the q arm which is the long arm. The two are separated from each other only by primary constriction at the center called the centromere, the point at which the chromosomes is attached to the spindle fibers during cell division.
Which activity involves a chemical change?
A. Ice melting into liquid water
B. A metal rod being bent into a ring
C. Colorless egg becoming a white solid
D. Salt dissolving in water
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option C is correct........
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The Law of Overcompensation and Overload allows for which of the following in regards to intensity?
A. Progressively increase over a period to time
B. Progressively decrease over a period of time
C. Remain the same
D. Acute decrease over a period of time
Answer:
A. Progressively increase over a period to time
Explanation:
The law of overcompensation states that the environment compensates for any factor by twice the amount and the overload theory states that challenges should be increased while working on a certain task to improve the results.
The laws allow for the following:
Option A. Progressively increase over some time.
The laws can be explained as:
In fitness and sports, the laws of overload and overcompensation are widely used. The overload principle says that the intensity and exercise duration should be increased gradually to see an improvement in endurance, strength and muscles.According to the overcompensation theory, the body recovers from any injury or harm the body does not quit there and will be stronger compared to before.Thus, overcompensation and overload increase over time.
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Implanting an electrode that supplies a weak electrical current to specific brain areas is called _____. It is useful in the treatment of _____
Answer:
Deep Brain Stimulation (DBS)
Depression, Uncoordinated body movements such as in Parkinson's disease
Explanation:
Deep brain stimulation is a surgical procedure in which a device that sends electrical impulses to the brain by means of lead wires connected to electrodes placed in the specific areas of the brain, is implanted in the body, typically the chest region.
This surgical procedure is usually required to treat diseases in which there is irregular and improper nervous stimulation of the brain resulting in various nervous disorders such as irregular muscle movements as in Parkinson's disease as well as depression.
The impulses sent from the stimulator device to the electrodes in the brain through the wires, serves to stabilize and normalize nerve signals sent to the brain.
the clean water act ___
set maximum contaminant levels for drinking water
required industries to reduce or eliminate point source pollution in surface waters
established national ambient air quality standards
requires that pollution control devices be installed on cars and trucks and at factories
Answer: The Clean Water Act required industries to reduce or eliminate point source pollution in surface waters
Large-scale fires can lead to a decrease in atmospheric carbon dioxide,
Please select the best answer from the choices provided
ОТ
OF
Answer:
False
Explanation:
Fires produce carbon dioxide
Why is it difficult to establish rules, regulations and laws to protect sea turtles over their entire range
Answer:
The reason why it is difficult to create rules, regulations and laws to protect sea turtles over their entire range is that, it would take a concerted effort on a global scale to achieve that. The logistics and administration of such efforts of would take some years to work out.
Explanation:
Answer:
The reason why it is difficult to create rules, regulations and laws to protect sea turtles over their entire range is that, it would take a concerted effort on a global scale to achieve that. The logistics and administration of such efforts of would take some years to work out.
Explanation:
Sea turtles can be found around the world. The efforts described above, therefore, would require that many different countries and cultures would have to cooperate as well as own their share of the responsibility required to make it so.
Legislation with regard to the efforts would need to be executed if not simultaneously, at least over approximately the same block of time.
Not only that, it would require tons of research as the peculiarity of each geographical location would be considered.
Cheers!
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The graph below shows the temperature of ocean water at different depths. Which part of the graph represents the thermocline? a. AB b. BC c. CD d. DE
Answer:
C
Explanation:
Generally temperature changes rapidly with the dept in aquatic bodies especially the oceans.The thin distinct or transition layer where the variation in temperature with depth is most significant is called Thermocline.
Its represents the gaps which separate the upper mixed layer from the lower deeper water bed below,it therefore represent the layer of mixture of the upper surface warmer water (C) below 200 meters, with the cooler water layer(E) below,from 1000 meters check the attachment.
It is caused by variation in intensity of sunlight.The latter hits the surface water layer and therefore raises the temperature.But,because of decrease in sunlight penetration,with increasing dept, the temperature of the lower water dept decreases.
Which activity is part of managing water resources?
studying water to see whether it is polluted
taking a long hot bath to stay warm
drinking water and using it for swimmig and boating
transporting water to areas where it is needed
First and Last ones I think. Not sure.
Answer: D
Explanation: Studying water isn’t managing it, and taking a long bath isn’t either. Drinking water isn't really saving or managing so D.
what happens when we eat a lots of fried food
Answer:
Eating a lot of fried food can cause a greater risk of developing heart disease, chronic disease, and obesity.
The high rate of diversification of HIV strains inside a host is a result of (SELECT ALL THAT APPLY):
Question:
The high rate of diversification of HIV strains inside a host is a result of (SELECT ALL THAT APPLY):
1. High mutation rates in the HIV itself.
2. Strong and varying selection forces caused by hypermutation of antibody genes in the lymphocytes.
3. Errors in transcribing the viral RNA from the host DNA.
Answer:
All the above options are correct.
Explanation:
According to research, Retroviral cultures evolve rapidly to fit the dynamic nature of their environs.
It is also established that errors in replication can provide the basis for diversity.
Cheers!
Huntington's disease, which causes degeneration of neurons, runs in Mark's family. Huntington's is a heritable autosomal dominant genetic disease, in an autosomal dominant disease, only one abnormal allele is required to cause the disease in offspring. However, it is possible not all offspring will receive the abnormal allele from an affected heterozygous parent.
Family members that have the disease include Mark's maternal grandfather and Mark's maternal aunts. Mark's maternal grandmother does not have the disease.
Because symptoms of Huntington's disease do not appear until later in life, genetic testing is necessary to determine whether a younger individual possesses the allele for the disease. These tests determined that Mark's mother does not carry the allele for Huntington's disease.
Mark's paternal aunt suggested that Mark create a pedigree to track the disease in his family. Use the symbols provided to complete the pedigree. Each symbol may be used more than once.
Answer:
As it is given that Mark's paternal grandmother and grandfather does not carry the disease. The symbols on the right side of the Punnett represent Mark's paternal family. If both his paternal grandparents are unaffected then his father and paternal aunt are also not affected by the disease.
His maternal grandfather is affected as mentioned and also his maternal aunts are affected. Mark's mother is unaffected as she does not have the disease-causing alleles determined by genetic testing.
Both of the marks parents are unaffected which indicates that marks also do not carry the allele of the disease.
Huntington's disease is an autosomal dominant disorder in which the presence of even one dominant allele can cause the disorder.
The autosomal disorder can not skip a generation, have to be present in every generation.
Condition Given:
Affected Member: Mark's Maternal grandfather and Maternal aunts.
Normal: Mark's Maternal grandmother and Mark's Mother.
As MArk's Maternal Grandfather is affected then his genotype must be Aa because Mark's Maternal grandmother is unaffected (aa), this is the only condition where Mark's mother will be normal.
A- Dominant (Huntington)
a- Recessive
Maternal means on the mother's side and paternal means on the father's side.
The diagram is attached below.
I-1: Mark's maternal Grandmother
I-2: Mark's maternal Grandfather
I-3&4: Mark's Paternal Grandparents
II-1&2: Mark's Maternal aunts
II-5: Mark's paternal aunt
II-3&4: Mark's mother and father respectively will not have the disease as both father and mother of Mark are normal.
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The specialized soft tissue manipulation technique used to ease the pain of conditions such as fibromyalgia, movement restrictions, and temporomandibular joint (TMJ) disorders is known as _____.
Answer:
myofascial release
Explanation:
If there are 12 chromosomes in an animal cell in the G 1 stage of the cell cycle, what is the diploid number of chromosomes for this organism?
Answer:
The gametes are haploid, having half the number of cells as compared to somatic cells. The gametes or sex cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes
Explanation:
who is the father of genetics
Answer:
The father of genetics is Gregor Mendel. Gregor Mendel was considered the father of genetics during the 19th century.
Hope this helps! :)
the period during which blood is being pumped past the semilunar valves into the elastic arteries
Answer: ejection
Explanation:
What does swelling of the Lymph nodes indicate
Answer:
Swelling of the lymph nodes is a sign that they are being overworked.
Explanation:
Unnecessary waste could be building up in your lymph nodes and this can also signal that you may have an infection.
Hope this helped! :)
The beginning of life for human beings is different from the biological beginnings of other mammals in that it involves the creation of a body and a _______.
Answer:
The beginning of life of human beings is different from the biological beginning of other mammals, since it involves the creation of a body and a brain with the power of reason.
Explanation:
The human being, unlike other animals, his brain has the ability to reason, that is, to be able to manage with an intelligence center.
There are some animals that have developed feelings and that is what makes them be able to look more like humans, but in simple words the rest of the mammals are guided by their natural instinct while man also uses the rational weapon of life. .
The study of changes in phenotype that are not related to changes in the DNA and that may result from the interaction between the genotype and the environment:
Answer:
Epigenetics.
Explanation:
Epigenetics is the study of phenotypic changes which are heritable but not related to changes in the DNA sequence. It is influenced by several factors including the environment.
An example of epigenetics is DNA methylation: addition of methyl group to some part of the DNA that prevents that part from being expressed. Other examples include history modifications.
In summary, Epigenetics describes inheritance through other mechanisms than through the DNA sequence.
1. How many bands did you detect in the lane with undigested plasmid? What size(s) were they? Explain each band. a. We detected there to be one band in the lane with the undigested plasmid.
Answer:
The aim is to eliminate organic matter by disintegrating it with said chemical compound
Explanation:
There are chemical compounds that clean the inorganic layers and others the organic ones.
In the case of sodium hydroxide, this hydroxide is capable of breaking down organic material by removing and removing it from surfaces.
The order Primates includes Group of answer choices monkeys, prosimians, humans and apes. only monkeys. only humans. only apes. only monkeys, apes and humans.
Answer:
monkeys, prosimians, humans and apes
Explanation:
The correct answer would be monkeys, prosimians, humans and apes.
Primate represents an order within the Mammalian class. The group consists of animals that fall into two sub-orders - the strepsirrhines which consist of lemurs, lorisoids, etc, and the haplorhines which consist of monkeys, apes, and humans.
Collectively, the apes and the monkeys are categorized as simians while all other animals primates are referred to as the prosimians.
Hence, monkey, prosimimians, humans, and apes tend to cover all the groups under the primate order.
Answer:
monkeys, prosimians, humans and apes
Explanation:
AMSCO
Why is DNA called a macromolecule by scientists? A.)because the nucleotide bases in DNA contain nitrogen atoms which make it large B.)because DNA is a massive polymer that contains many different parts C.)because DNA is made of one large, complex molecule of sugar D.)because purines and pyrimidines connect in DNA to make it a large molecule
Answer:
B.)because DNA is a massive polymer that contains many different parts
Explanation:
DNA is also called Deoxyribonucleic acid and it is important in knowing the genetic composition of organisms. The DNA comprises of phosphate, a sugar called deoxyribose, and four nitrogenous base which are adenine, guanine, cytosine, and thymine.
These constituents named above form a long chain which could be in millions and billions. This is why it is regarded to as a macromolecule because it is a massive polymer that contains many different parts .
Answer:
because DNA is a massive polymer that contains many different parts
Explanation:
What was the population density of the original sample? What would have happened if you had inoculated an agar plate with 1 mL of the original sample?
Answer:
The sample was at a population density of 8.75x10^4 CFU/mL originally.
Explanation:
Had it been inoculated in the way as described in the question statement, the bacterial growth would have covered all of the agar plate and we would not have been able to distinguish individual colonies of bacteria. 1 mL is too much of a sample volume to use in cases like these.
Which of the following statements is true?
-Diffusion describes the concentration gradient in a solution.
-Diffusion regulates which molecules can and can't pass through a plasma membrane.
-Diffusion is the movement of water across a selectively permeable membrane.
-Diffusion does not require energy and is therefore a form of passive transport.
Answer:
Diffusion is the movement of water across a selectively permeable membrane.
Explanation:
Hope it helps.
The statement which is true about diffusion is as follows:
Diffusion does not require energy and is therefore a form of passive transport.Thus, the correct option is D.
What is Diffusion?Diffusion may be defined as the movement of substances from a region of higher concentration gradient to a region of lower concentration gradient through a semipermeable membrane.
Diffusion not only facilitated the movement of water across a selectively permeable membrane but also other substances as well. Diffusion only regulates the movement of those molecules which can pass through a plasma membrane.
It is the means of movement of substances that do not require any form of energy. And thus, diffusion is significantly a form of passive transport.
Therefore, the correct option for this question is D.
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A circular double-stranded DNA molecule contains 4200 base pairs. In solution, DNA is in a B-form helix, with about 10.5 base pairs/turn. The DNA has 12 superhelical turns. What is its superhelix density
Answer:
The correct answer is - 3 × 10⁻²
Explanation:
first find LKo = length of BDNA/ 10.5 bp/turn
= 4200/10.5
= 400
now calculate Δ LK= LK - LKo
ΔLK = 412-400
ΔLK = 12
now, superhelix density = ΔLK/LKo
⇒ 12/400 = 0.03
= 3×10⁻²
Thus, the correct answer is - 3 × 10⁻²
Which of the following statements indicates the way in which the body's natural defenses protect the skin from the effects of UV damage?
Answer:
Prolonged exposure to the sun induces melanin dispersion, which in turn acts as a natural sunscreen
Explanation:
The statement that indicates the way in which the body's natural defense protect the skin from UV damage is "Prolonged exposure to the sun induces melanin dispersion, which in turn acts as a natural sunscreen." The correct option is D.
What are the effects of UV rays on skin?Psoriasis can be caused by UV rays emitted by the sun or contrived references such as sunbeds.
UV rays can lead to premature skin ageing process and sun damage symptoms such as age spots, bristly skin, liver spots, actinic keratosis, and solar elastosis. UV rays could also harm the eyes.
Ultraviolet radiation has an impact on both humans and wildlife. UV-B radiation hinders the cellular activities including almost all green plants.
There is concern that ozone depletion will result in the extinction of plant species and a reduction in global food supply.
Thus, the correct option is D.
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Your question seems incomplete. The probable missing options may be:
A)The skin is protected by increasing the number of epidermal dendritic cells, which help to activate the immune system.B)Carotene, which accumulates in the stratum corneum and hypodermal adipose tissue, is synthesized in large amounts in the presence of sunlight.C)The skin is protected by the synthesis of three pigments that contribute to the skin's color.D)Prolonged exposure to the sun induces melanin dispersion, which in turn acts as a natural sunscreen.1. List five processes that are regulated by the hypothalamus: A. __________________________________________ B. __________________________________________ C. __________________________________________ D. __________________________________________ E. __________________________________________
Answer:
Answered below
Explanation:
The hypothalamus is a small part of the brain located at it's base near the pituitary gland. It has three main regions and each region contains different nuclei. These neurons perform different important functions in controlling the many physiological processes and in the maintenance of homeostasis in the body. Five of such processes that are regulated by the hypothalamus include;
1) The hypothalamus regulates the release of hormones by producing hormone releasing factors which trigger or inhibit the release of hormones form other parts of the body.
2) Regulation of body temperature.
3) Regulation of blood pressure and heart rate.
4) Regulation of appetite and weight control.
5) Regulation of the volume of body fluids.