Answer:
The answer is option B.
Smooth muscleHope this helps you
Answer:
Smooth muscle
Explanation:
Smooth muscle cells often only contain a single nucleus and their movements are involuntary, such as their movement during swallowing. Skeletal muscle is ordinarily striated and voluntary, with many nuclei involved in their cells. Cardiac muscles have fewer nuclei that skeletal muscles cells, but are also involuntary in their movement, which keeps the heart beating.
What is the function of premolars and molars? Write the number of both teeth in each jaw
Answer:
The function of the molars and premolars is to chew the food. There is 4 premolars and 6 molars in each jaw. I hope it helps you....
What are gyres?
1.Large plants that move in circles in the ocean.
2.Large circulating parts of the ocean
3.Large animals in the ocean that move in circles in the ocean.
Answer:
A gyre is a circular ocean current formed by the Earth's wind patterns and the forces created by the rotation of the planet..
Explanation:
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The result of mitosis is that the daughter cells end up with the same number of chromosomes that the parent cell had. Another way to maintain the number of chromosomes would be to carry out cell division first and then duplicate the chromosomes in each daughter cell. Do you think this would be an equally good way of organizing the cell cycle? Why do you suppose that evolution has not led to this alternative?
Answer:
No, it will not be good way of organizing the cell cycle, as cell division would occur first and duplicate the chromosomes later, it would lead to unequal distribution of chromosomes in the offspring.
E.g. let the parent cell has chromosomes A, B, C, D so when the cell will divide the chromosomes will be divided in two sets as: (A, B) and (C, D), the daughter cells will have one of these sets each. Later it will be duplicated then the result will be (A, A, B, B) and (C, C, D, D). But ideally it should be A, B, C, D, as this had not happened in the above case so the offspring or daughter cells would have half of the genetic code missing hence they could not survive in nature. That's why natural evolution had not led to this alternative.
Blood is vital for transporting substances through the body. When a person bleeds, that person is hemorrhaging. Blood loss over 30% can be fatal if not replaced by a blood transfusion.
A. A person with type AB- blood could receive type B- blood, type A- blood, type AB- blood, or type O- blood.
B. A person with type O+ blood could receive type O+ blood or type O- blood.
C. A person with type A- blood could receive type A- blood or type O- blood.
D. A person with type B+ blood could receive type B+ blood, type B- blood, type O- blood, or type O+ blood.
Answer:
A and C
Explanation:
The signs for blood (positive or negative) from the donor always has to match the blood for the patient.
Type A- blood can only donate to A- blood or AB- blood.
Type B- blood can only donate to B- blood or AB- blood.
Type AB- blood can only donate to AB- blood.
Type O- blood can only donate to O- blood, AB- blood, A- blood, or B- blood.
Type A+ blood can only donate to A+ blood or AB+ blood.
Type B+ blood can only donate to B+ blood or AB+ blood.
Type AB+ blood can only donate to AB+ blood.
Type O+ blood can only donate to O+ blood, AB+ blood, A+ blood, or B+ blood.
describe some of the basic trends in hominid evolution (brain size, jaw size, language, and manufacturer tools) using at least five sentences.
Jose Salazar has been hospitalized following a motor vehicle accident. He has several broken bones, including his left jaw, two ribs on the left side, and a compound fracture of his left leg. According to his medical record, he is 47 years old, his height is 5'9", and his weight is 171 pounds. During the course of his hospital stay, he was diagnosed with a heart arrhythmia. His current medications include lovastatin to lower his cholesterol, an MAO inhibitor to treat depression, and an analgesic to treat his pain. Mr. Salazar's wife also reports that he takes several herbal products including yohimbe, kava, valerian, and St. John's wort. Which herbal product taken by Mr. Salazar may be causing his heart arrhythmia?a. yohimbeb. kava kava onlyc. St. John's wortd. valerian onlye. both valerian and kava kava
Answer:
a. yohimbeb
Explanation:
Heart arrhythmia is a heart disease in which the heart does not work properly. The main cause of heart arrhythmia is yohimbeb which is used as a medicine for increasing sexual desires but this herbal product also has side effects such as causing heart problems such as heart arrhythmia and kidney diseases. So the Jose Salazar should avoid the consumption of yohimbeb in order to control the heart disease.
What is the savanna hypothesis? Group of answer choices Bipedalism was selectively favored because it helped our ancestors to stay cool in their warm environment. Bipedalism evolved in early humans that were monogamous, specifically to allow male human fathers to provision food and resources to human female partners.
Answer:
Both options are valid, since in the hypothesis of the savanna it was argued that humans acquired bipedalism to be able to self-supply their food more effectively, and to have less body surface area exposed to the sun.
Explanation:
The saban hypothesis is believed to have originated in the saban, with the Austrolopitecus africanus being forced to affect this domain, which is why it acquired this adaptation mechanism.
The savanna had high grasslands, which also led to collaboration in this regard since they could be better camouflaged.
In addition, the human began to defend with the limbs of the upper limb, triggering the canines to decrease in size since it is not used as a defense mechanism.
The canine is a tooth that helps to tear carnivorous food, that is why the human also begins to have a more varied diet of fruits and seeds and that it can reach and take the bones of the tree to increase its height due to bipedalism.
Consider the following DNA molecule: 5' TTC CAT GGA 3' 3' AAG GTA CCT 5' If this molecule were transcribed, what would be the resulting RNA molecule
Answer:
DNA strand: 5' TTC CAT GGA 3'
RNA strand: 3' AAG GUA CCU 5'
Explanation:
From the DNA template, an RNA molecule will be transcribed that is single stranded. So, it will read off the code from the 5' to 3' strand of DNA to create the RNA molecule made of complementary bases, in triplet codons. The enzyme that carries out this function is RNA polymerase.
You are working as an intern in a small biotechnology company that is trying to develop genetic engineering approaches to improve the ability of humans to swim under water without SCUBA equipment or other sources of oxygen. As a physiologist, you realize that this problem has already been solved by marine mammals and birds who are able to function under water for extended periods of time. You decide to do some background research on diving mammals and birds and prepare a list of possible strategies to present at the next research staff meeting.State two possible strategies for enhancing the ability of humans to function under water without access to additional oxygen and briefly discuss why you think each strategy would be effective.
Answer:
1- By eating a supplement that enhances the ability of red blood cells to transport oxygen, thereby reducing the oxygen dependence
2- By developing structures that help to support high pressures, thus improving the ability to breathe in deeper marine habitats
Explanation:
Recently, it has been shown that beneficial mutations provided to marine mammals a biological adaptation associated with a higher ability to transport oxygen in red blood cells when compared to terrestrial mammals. This adaptation enables marine mammals to breathe less frequently to obtain the same amount of oxygen.
In birds, the airflow is unidirectional (i.e., inhalation and exhalation are complete), rather than mammals where the air in and out of the lungs. This mode of respiration helps the birds to tolerate the high pressures during flight.
The strategies for enhancing the ability of humans to function under water without access to additional oxygen will be:
Increased positively charged proteins known as myoglobin.Controlled breathing.It should be noted that one of the strategies for enhancing the ability of humans to function under water without access to additional oxygen will be controlled breathing.
Another factor that can be used is the increased level of haemoglobin content. Lastly, increase in myoglobin can be vital for this procedure too.
Read related link on:
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What is enzyme specificity?
Answer:
This is the tendency of enzymes to catalyse a specific set of chemical reactions.
Explanation:
This is enzyme specificity.
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Which step of desalination must be done before water is condensed and collected?
Water is heated until it evaporates.
Water is frozen, so it becomes ice.
Water is transported from one area to another area that has little water.
Water is collected and salt is allowed to settle at the bottom.
Answer:
Water is transported from one area to another area that has little water. Water is collected and salt allowed to settle at the bottom.
Explanation:
Desalination of water is a process of the removal of salts and minerals from the water. This process is used for the production of water suitable for human consumption or irrigation.
Natural desalination occurs trough the hydrologic cycle when seawater evaporates. On the other hand, manipulated desalinization is an energy expensive alternative to natural desalination.
Answer:
A. Water is heated until it evaporates.
Explanation:
Traditionally, the best way of taking salt out of water has been through vacuum distillation. The salt water is enclosed at a low pressure to reduce its boiling point, making it easier to vaporize to separate the salt from the water.
complete 9 additional base pairs. Remember there is no thymine in RNA
Answer:
Instead of Left to Right, I'll be doing them in top to bottom,indicating that the 9th pair is on the bottom
Thymine = Adenine
Adenine = Uracil
Thymine = Adenine
Guanine = Cytosine
Cytosine = Guanine
Thymine = Adenine
Guanine = Cytosine
Cytosine = Guanine
Adenine = Uracil
Thymine = Adenine
If there is no thymine in the RNA than instead of Left to Right, I'll be doing them in top to bottom,indicating that the 9th pair is on the bottom and these are as follow:
Thymine = Adenine
Adenine = Uracil
Thymine = Adenine
Guanine = Cytosine
Cytosine = Guanine
Thymine = Adenine
Guanine = Cytosine
Cytosine = Guanine
Adenine = Uracil
Thymine = Adenine
What is RNA?RNA is refers to ribonucleic acid and it is a much more rudimentary system with only one stand. RNA have most ancient bacteria. All life has some form of RNA in it but not everyone has DNA. Attached to each sugar is one of four bases: adenine (A), uracil (U), cytosine (C) or guanine (G).
Ribonucleic acid (abbreviated RNA) has a nucleic acid present in all living cells that has structural similarities to DNA. Unlike DNA, however, RNA has been considered as the most often single-stranded. An RNA molecule has a backbone made of alternating phosphate groups and the sugar ribose, rather than the deoxyribose found in DNA.
Therefore, If there is no thymine in the RNA than instead of Left to Right, I'll be doing them in top to bottom,indicating that the 9th pair is on the bottom and these are as follow:
Thymine = Adenine
Adenine = Uracil
Thymine = Adenine
Guanine = Cytosine
Cytosine = Guanine
Thymine = Adenine
Guanine = Cytosine
Cytosine = Guanine
Adenine = Uracil
Thymine = Adenine
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The highlighted structure contains part of the brain system that maintains cortical alertness. What is the name given to this brain system
Answer:
Reticular formation
Explanation:
The Reticular formation consists of nuclei which are connected together. They are found in the Brain Stem. The Brain stem and Reticular formation are also both found in the Medulla Oblongata.
They however contain rich volume of cells which helps in the cortical alertness and they also help in the control of the activities of the skeletal and some parts of the muscular system.
Question 21 (5 points)
Which of the following terms describes a collection of hollow cells that implants on
the uterus wall after fertilization, but is not yet differentiated (in other words, all cells
are the same type of cell still)?
Fetus
Haploid
Mitosis
Blastocyst
Answer:
The answer is option D.
Blastocyst
Hope this helps
Answer:
Blastocyst
Explanation:
Once an egg is fertilized by a sperm, it begins to divide by mitosis into a 2, 4, and then 8 celled structure. Eventually, this large collection of cells keeps dividing and becomes a hallow collection of undifferentiated cells called a blastocyst. The blastocyst will implant on the wall of the uterus where it will begin to grow and develop during pregnancy into a fetus.
the area around a cell has a high concentration of sodium ions as a result the cell membrane expands and burst which problem was the cell most likely having
Answer:
Cell can't fix their internal osmotic state
Explanation:
Due to which it bursts and there is also another problem that water moves from hypotonic to hypertonic so water from cell move outside cell shrinks and die
What kind of information does the nutrition facts give about requirements for essential nutrients?
Answer:
the percent of various nutirents in one serving.
Explanation:
If you look on the back of a food item you can read the different percentages of vitamins and other nutrients in the product.
3. Why are cilia and flagella important?
Answer:
Involved in the movement of body and capturing of food
Explanation:
Which is the best hypothesis for the scientific question "How does light intensity affect the rate of photosynthesis ?"
O Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis.
O Light intensity has no effect on the rate of photosynthesis.
If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
O Light intensity has an impact on the rate of photosynthesis.
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If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
Answer:
(C) If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
Explanation:
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The “somatic” cells are different from the “gametes” in one specific way. What do somatic cells do that Gametes dont? A. Divide B. Get passed to offspring C.build the body D. Grow inflexible walls
Answer:
option B
Explanation:
Gametes are haploid because a sperm and an egg fuse during fertilization to create a new organism with diploid cells. Mutations in somatic cells can affect an individual organism, but they do not affect the offspring since they are not passed on during reproduction.
a) _____ is used to find the gene that codes for a protein by matching amino acid sequences to codons, mRNA to cDNA, and cDNA to natural DNA. (1 point) g
Answer:
mRNA
Explanation:
Messenger RNA (mRNA) is a single-strand RNA derived from the process of transcription, in which one strand of DNA serves as template to synthesize this molecule. The mRNA has an identical sequence to the gene, with the exception of thymine nucleotides that are replaced by uracils. During this process, the RNA polymerase synthesizes a precursor mRNA molecule (pre-mRNA), which contains both intronic and exonic regions. Subsequently, the introns are eliminated by RNA processing enzymes in a process known as RNA splicing, thereby resulting in a mature mRNA. Finally, this mature mRNA is decoded by the ribosome during the synthesis of proteins in a process named translation. The translation involves another type of RNA molecule: the transfer RNAs (tRNAs), which recognize codons in the mRNA and act as adaptors by the incorporation of specific amino acids in the protein sequence.
Answer:
mRNA is the answer
Explanation:
A.p.e.x.
In the intrinsic pathway, the reaction begins with clotting factors from the _.
Answer:
Clotting factors are circulating in the blood.
Explanation:
In the intrinsic pathway, the body is responding intravascular damage through binding of platelets, exposure of chemicals or even collagen from endothelial membranes. The most of the clotting factors are synthesized by the liver and circulate around the blood stream until they are needed or until they are degraded based off their half lives.
When the platelets start to aggregate they release chemicals and have proteins that can attract the clotting factors. In the intrinsic pathway, clotting Factor XII starts off the cascade. Hope that helped :)
The Hadza and the Datog are both groups of tribes in Africa. Which of these has the traditionally higher-starch diet?
Answer:
The Datog has the traditionally higher-starch diet.
Explanation:
The Datog has traditionally consume higher-starch diet than the Hadza. The people of Hadza tribe take their food from the forest including berries, fiber-rich tubers, honey and meat etc. They search the forest in order to obtain food for themselves and their families while the Datog people obtain food by planting starch rich crops such as maize, beans and millet. so we can say that the Datog people consume higher-starch diet.
The nebular hypothesis suggest that our solar system evolved from a huge
Answer:
The correct answer is - Rotating Cloud.
Explanation:
According to the nebular hypothesis presented by the Swedish philosopher Emanuel Swedenborg in 1734 that says that the Sun and all the other planets of our Solar System evolved from a giant cloud of molecular gas and dust. This huge cloud could have been the result of a shock waves from a supernova or any passing star, but the end result was a gravitational collapse at the center of the cloud.
Thus, the correct answer is - our solar system evolved from a huge Rotating cloud.
what is the diffrence between first cousins and second cousin?
Convert 9.75 millimeters to centimeters. centimeters
Answer:
here,
10mm = 1cm
or, 1 mm=1/10 cm
or, 9.75mm=1/10×9.75cm
=0.975 ..........is the answer
hope it helps..
Answer:
.975
Explanation:
my brain:)
Cellular respiration and fermentation both --- A. begin with the breakdown of glucose in glycolysis B. produce the same number of ATP molecules C. only occur in animal cells D. require oxygen molecules as a reactant
Answer:
B
Explanation:
Question 6 (5 points)
Which of the following is not a type of neuron found in the body?
Sensory neurons
Endocrine neurons
Motor neurons
Interneurons
Answer:
The answer is Endocrine neurons
Hope this helps
Answer:
Endocrine neurons
Explanation:
Sensory neurons carry signals from organs to the central nervous system. Motor neurons carry impulses from the central nervous system to muscles to control movement. Interneurons process information going between the other two types of neurons. Endocrine neurons do not exist.
Caffeine prolongs and intensifies the effects of epinephrine. Which of the following potential mechanisms of action of caffeine is consistent with this effect?
a. inhibits cAMP phosphodiesterase, the enzyme that converts cAMP to AMP.
b. a competitive antagonist of cAMP binding to PKA.
c. stimulates phospholipase Cb.
d. inhibits sarcoplasmic/endoplasmic reticulum Ca 2 + - ATPase.
e. activates PKC.
Answer:
a. inhibits cAMP phosphodiesterase, the enzyme that converts cAMP to AMP.
Explanation:
The phosphodiesterases are a group of enzymes that are capable of breaking phosphodiester bonds such as those between nucleotides in nucleic acids. The Cyclic adenosine monophosphate (cAMP) is a second messenger involved in intracellular signaling pathways. This molecule (cAMP) is hydrolyzed by the cAMP-dependent phosphodiesterase, which catalyzes the enzymatic breakdown of phosphodiester bonds (i.e., hydrolyzing cAMP to 5-AMP). The cAMP levels are modulated by the balance between its generation and the degradation via cyclic nucleotide phosphodiesterase.
In a normal-sighted individual, the ________ will focus images perfectly on a small indentation in the back of the eye known as the ________.
Answer:
Lens
Ratina
Explanation:
In the eye the lense refeacts the light coming in through the pupil and then focus it on the small indentation opposite to the lense called Ratina.
4. In the background, the presence of naturally occurring enzymes in fruits and vegetables was discussed. Using your results from this exercise as a basis to guide your thoughts, do you think that cooked, frozen, or raw fruits and vegetables would contain the most active enzymes?
Answer:
The fruits inside do not have enzymes, but if our body when digesting them, if these fruits are cooked they are much easier to digest by our digestive enzymes and if they are raw, digestion will be more laborious since it will have to break more masses chemicals that were not destroyed by cooking.
Regarding freezing, it does not intervene in digestion.
Explanation:
The cooking of vegetables or fruits like meats generates that some chemical unions are destroyed, thus exposing the most internal structures in enzyme activity.