Answer:
D
Explanation:
no antigens
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Beetles come in a wide variety of shapes, feeding habits, and live in a variety of habitats. Classifying beetles can be quite difficult given their sheer numbers. Within the Ground Beetles in Genus Notiophilus alone there are 15 different species. If you were to choose a group of organisms the LEAST related to individuals in this genus, you would look in which of the following taxa? In the same Kingdom, but not the same Phylum In the same Domain, but not the same Kingdom In the same Class, but not the same Order In the same Family, but not the same Genus
Answer:
In the same Domain, but not the same Kingdom
Explanation:
The taxonomic classification is organized in the following taxes, following the order of greatest kinship to the order of lowest biological kinship: species, genus, family, order, class, phylum, kingdom and domain. Therefore, if you want to study organisms that are less genetically similar to the organisms that make up the genus Notiophilus, you should observe the individuals that make up the domain where this genus is inserted, since they have very little genetic and morphological similarities.
Explain why the tree which does not move away is also considered a living thing
Answer:
Because it grows. Anything having to do with growth is alive.
Describe how replacing diesel/petrol fueled vehicle to electric-operated vehicles may change the environment
Answer:
By reducing the amount of carbon dioxide emissions contributing to global warming
Explanation:
Global warming is an arising problem caused by the emission of gases called GREENHOUSE GASES into the Earth's atmosphere. The greenhouse gases include Carbon dioxide, methane etc.
Carbon dioxide as the principal cause of global warming is emitted when fossil fuels like petroleum products like diesel or petrol are burned. Therefore, the use of automobiles like cars releases CO2 into the atmosphere. Therefore, replacing diesel/petrol fueled vehicle to electric-operated vehicles may change the environment by reducing the amount of greenhouse gases (CO2) emitted into the atmosphere, ultimately helping to reduce global warming.
In DNA replication, the RNA primers are removed and replaced with DNA by:__________.
Answer:
DNA polymerase
Explanation:
RNA primers are removed and replaced with DNA by DNA polymerase I. The gaps between DNA fragments are sealed by DNA ligase.
TRUE OR FALSE
The atmosphere is a relatively thin layer of gases that form Earth’s outermost layer.
Mountains are an example of the biosphere.
The crust is less than 1% of the Earth’s mass.
Ponds are an example of the geosphere.
Earth’s four systems include: geosphere, atmosphere, biosphere, and lithosphere.
Answer:
true, true, false (15%), false, true
In amphibians, air is forced into the lungs, not drawn into the lungs; this is called:___________.
Answer:
The options are
A) negative pressure breathing
B) forced air breathing
C) positive pressure breathing
D) terrestrial breathing
E) none of the above
The answer is C) positive pressure breathing
Explanation:
Mammals such as humans and goats possess diaphragms . The muscles of the diaphragm create a type of pressure which helps in pulling air into the lungs. This process is called Negative pressure breathing.
Amphibians lack diaphragms so they lack pressure to draw air into the lungs , it is forced into the lungs instead in a process known as positive pressure breathing.
An RNA molecule is made up of long chains of nucleotides. An RNA nucleotide consists of a _______________, a
_______________, and a nitrogenous base.
The comparatively brief, single-stranded adenine, cytosine, guanine, and uracil-based mRNA molecules are bound together by a sugar phosphate backbone. Two thirds RNA and one third protein make up the enormous and intricate ribosome.
What are the composition of RNA molecule?Ribonucleic acid is a substance that is present in the majority of living things, including viruses (RNA). The building blocks of DNA are nucleotides, which are ribose sugars bound to nitrogenous bases and phosphate groups.Adenine, guanine, uracil, and cytosine are among the nitrogenous bases.
Similar to our prior findings for bacteria, we discover that each gene typically only has a small number of mRNA molecules present in the cell at any given time.
Therefore, An RNA molecule is made up of long chains of nucleotides. An RNA nucleotide consists of a (five carbon ribose sugar) , a( phosphate molecule ) and a nitrogenous base.
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What is it called when scientists examine how well other scientists follow the scientific method? O A. A peer review OB. A new experiment O C. A prediction O D. A journal
Answer:
peer review
Explanation:
Answer:
peer review
Explanation:
Which of the following characteristics is not shared between Kingdom Protista and Kingdom Animalia?
A mobile
B Photosynthetic
C Eukaryotic
D Reproduce sexually
Answer:
B. Photosynthetic
Explanation:
Kingdom animalia and protista are two of the seven classification of kingdoms. Kingdom Animalia is characterized by their eukaryotic multicellular cell and heterotrophic nature of nutrition i.e. depend on other organisms for energy source.
Kingdom protista, on the other hand, are grouped because they do not fit into any other kingdom. Protists can be autotrophic or heterotrophic, single celled or multicellular. Some protists are capable of autotrophic nutrition via photosynthesis e.g algae.
This photosynthetic process is the difference between the protists and animals. Animals can never be autotrophic.
The following characteristics is not shared between Kingdom Protista and Kingdom Animalia is option B. Photosynthetic
Kingdom Protista & Animalia:Kingdom Animalia and Protista should be two of the seven classifications of kingdoms. Kingdom Animalia should be characterized by their eukaryotic multicellular cell And heterotrophic nature of nutrition based on other organisms for an energy source.
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Select the correct answer from each drop-down menu. The male red-winged blackbird has a bright-red patch on its shoulder. This adaptation increases its chances of mating with the female blackbird. Some of the birds underwent mutation, and their offspring didn’t have the red-colored patch. This mutation increases the birds’ _______. Individuals with this mutation have____chance of being sexually selected. !st sentence answers. A.Ability to adapt B.Genetic Variation C.Sexual Selection 2nd sentence answer. A.A higher chance B.A lower C.The same
Answer:
B.Genetic Variation
B. A lower
genetic variation and a lower chance
Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after the objects collide and bounce apart?
velocity
mass
momentum
direction
Answer:
mass
Explanation:
The law of conservation of momentum states that within an isolated system, one of the quantities must be conserved no matter what happens. In the case of the question above, when two objects collide and separate from each other. Because of the collision and the removal of objects, it is not possible to keep the direction and speed that they assume constant. However, the mass of the bodies will be maintained at all times, before, during and after the collision; steadily.
The only parameter Jerome should keep constant is mass of the object.
Law of conservation of momentumThe law of conservation of momentum states that, the total momentum of an isolated system is always constant.
The formula for law of conservation of momentum is written as;
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
where;
m is mass u is initial velocityv is final velocityThus, the only parameter Jerome should keep constant is mass of the object.
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Simplify the expression 2(3) +26–3).
2(3) +26–3)
The simplified answer is 29
g A graduate student ran a gel filtration column and determined that a specific protein has a molecular mass of 400 kDa. The student then ran an SDS-PAGE gel of the protein under non-reducing conditions and found the presence of three bands: 180, 160, and 60 kDa. The student then ran SDS-PAGE under reducing conditions and still found three bands but the sizes were: 160, 90, and 60 kDa. Explain (1) the subunit composition of the protein, (2) the number of unique and identical polypeptides present in a single protein, (3) and why the discrepancies occur in the molecular weights.
Answer:
1) The protein is a tetramer, i.e., it has 4 subunits
2) The protein has two identical subunits with a molecular weight of 90 kDa
3) Because this protein contains two subunits with identical molecular weight (90 + 90= 180)
Explanation:
160 kDa + 90 kDa + 60 kDa = 310 kDa >>
Subunit X = 400 kDa - 310 kDa = 90 kDa >> Two subunits with a weight of 90 kDa likely linked by disulfide bonds (i.e., non-reducing conditions can break all bonds except sulfide interactions)
Which group contains only organs in a human body?
3
heart, brain, skin
skin, blood, neuron
neuron, heart, stomach
stomach, blood, brain
heart, brain, skin are the group contains only organs in a human body. Thus option A is correct.
what is role of heart ?
The major function of heart in our body is to pumping blood from the lungs to different the body parts.
In the initial step the de-oxygenated blood collected in the right atrium and pumped to the lungs via the right ventricle through a valve called tricuspid valve.
After carbon dioxide exhalation, the pure re-oxygenated blood is collected in the left atrium moved to the left ventricle via the mitral valve then transfers to the body parts.
The transportation of blood from the right atrium to the right ventricle occurs via the pulmonary semilunar valve.
Now the pulmonary vein carries the oxygenated blood and reach the left atrium transported to left ventricle followed by aortic semilunar valve transports this blood from the left ventricle to the aorta then to capillaries.
Thus option A is correct.
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going from superficial to deep the layers of the skin would be?
Answer:
Skin that has four layers of cells is referred to as “thin skin.” From deep to superficial, these layers are the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum. ... It has a fifth layer, called the stratum lucidum, located between the stratum corneum and the stratum granulosum (Figure).
create a flowchart of the negative feedback mechanism that controls your body’s temperature
Answer:b) Body temperature is regulated by negative feedback. The stimulus is when the body temperature exceeds 37 degrees Celsius, the sensors are the nerve cells with endings in the skin and brain, the control is the temperature regulatory center in the brain, and the effector is the sweat glands throughout the body.In negative feedback, the body works to correct a deviation from a set point, it tries to get back to normal. ... In positive feedback, the body changes from the normal point and amplifies it. Examples include blood clot formation, lactation, contractions during childbirth, and fever.In positive feedback mechanisms, the response to a stimulus does not stop or reverse it but instead keeps the sequence of events going up. ... A positive feedback mechanism can be harmful, as in case of fever that causes metabolic changes pushing it to be higher.xamples of processes that utilise negative feedback loops include homeostatic systems, such as:
Thermoregulation (if body temperature changes, mechanisms are induced to restore normal levels)
Blood sugar regulation (insulin lowers blood glucose when levels are high ; glucagon raises blood glucose when levels are low)
Explanation:
eok
Which biomolecule is the genetic codle for life?
Answer: nucleic acids
Explanation: Among biomolecules, nucleic acids, namely DNA and RNA, have the unique function of storing an organism's genetic code—the sequence of nucleotides that determines the amino acid sequence of proteins, which are of critical importance to life on Earth.
Which three of the statements are true? Amphipathic (amphiphilic) lipids are the structural basis of biological bilayer membranes. The tendency of water to minimize its contact with nonpolar substances is called the hydrophobic effect. Hydrophobic molecules do not readily dissolve in water in part because water molecules involved in hydration cannot participate in normal hydrogen bonding with one another. Hydrophobic molecules are individually hydrated in water, increasing the entropy of the system. Nonpolar molecules are capable of forming micelles.
Answer:
- Amphipathic (amphiphilic) lipids are the structural basis of biological bilayer membranes.
- The tendency of water to minimize its contact with nonpolar substances is called the hydrophobic effect.
- Hydrophobic molecules do not readily dissolve in water in part because water molecules involved in hydration cannot participate in normal hydrogen bonding with one another.
Explanation:
The cellular membranes consist of amphipathic lipids arranged in a bilayer, which maximizes both hydrophobic and hydrophilic interactions. The hydrophobic effect can be defined as the propensity of non-polar substances to aggregate themselves and thus exclude water molecules in a solution. Thus, water molecules around non-polar residues form an arrangement that reduces the entropy. Non-polar molecules are repelled and do not dissolve in water, thereby maximizing hydrogen bonding between water molecules and minimizing the contact area between water and nonpolar molecules.
Calculate Density: Mass = 79.4g
Volume = 29.8 cm
Density = ?
Answer:
2.66 g/cm
Explanation:
Mass=100g
Volume=100mL
[tex]\\ \rm\longmapsto Density=\dfrac{Mass}{Volume}[/tex]
[tex]\\ \rm\longmapsto Density=\dfrac{79.4}{29.8}[/tex]
[tex]\\ \rm\longmapsto Density=2.66g/mL[/tex]
A rapid change in temperature with depth is known as a
A. thermocline
B. halocline
C. temperocline
D. pycnocline
2. Determine the phenotype for each genotype using the information provided about the Simpson family. Write the phenotype in The space provided.
Yellow (Y) hair color is dominant to blue (y)
YY ₋₋₋₋₋₋₋₋₋₋₋₋₋ Yy ₋₋₋₋₋₋₋₋₋₋₋₋₋ yy ₋₋₋₋₋₋₋₋₋
Baldness (b) is recessive to a full head of hair (B)
Bb ₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ Bb ₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ bb₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ BB ₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ .
Explanation:
YY_yellow hair
Yy_yellow hair
yy_blue hair
Bb_full head of hair
Bb_full head of hair
bb_bladness
BB_full head of hair
Type your response in the box.
How would you define the term energy? Why do living things need energy?
Answer:
Energy is the potential for causing changes. Energy helps organisms perform tasks; such as maintaining homeostasis and responding to stimuli. Energy is essential to life because it helps organisms perform essential activities for survival.
:
Answer:
Sample Answer
Hope this helps!
Explanation:
Energy is the ability to do work. Living things need energy to grow, develop, move, and perform voluntary and involuntary body processes.
Who observed variations in the characteristics A.James Hutton , B.Charles Lyell , C.Charles Darwin, D.Thomas Malthus
Answer:b
Explanation:
Which of these molecules might be found in a molecule that catalyzes a chemical
reaction?
a) glucose, a sugar
b) lard, a fat
c) valine, an amino acid
d) DNA, a nucleic acid
Answer:
The correct answer is - option C and option D).
Explanation:
In biology, Molecules that catalyze a chemical reaction known as enzymes, and these catalyst helps in chemical reactions by lowering their activation energy. Enzymes are mainly made up of proteins that contain one or more than one amino acid chain linked together by peptide bonds.
Deoxyribozymes or DNA enzymes are the catalytic DNA that performs various catalytic reactions often but not always.
Thus, the correct answer would be - option C and option D).
Answer:
c
Explanation:
valine, an amino acid
3. Los conductos linfáticos, a medida que se alejan de los tejidos corporales:
a- Se hacen más angostos.
b- Se hacen más anchos.
c- Permanecen del mismo tamaño.
d- Se pierden.
Answer:
b- Se hacen más anchos.
Explanation:
Los conductos o vasos linfáticos son tubos que transporta tanto al líquido linfático (linfa) como glóbulos blancos que fluyen a través del sistema linfático. Estos conductos se inician en el intersticio y terminan en conductos de mayor tamaño que desembocan en la base del cuello, entre las venas yugular interna y la subclavia. A medida que va entrando en los tejidos, los conductos linfáticos se van haciendo cada vez más angostos y finos, convirtiéndose finalmente en capilares linfáticos, donde las sustancias que no pueden penetrar los vasos sanguíneos son recogidas por estos capilares.
Which animal does not need gall bladder and why
ANSWER THIS QUESTION PLLZZZZ I NEED HELPPPPPPPPP
Answer:
Explanation:
what does it say
The Atmosphere is the shell of gasses that surround the Earth and is layered
into zones.
True or false
Answer:
I would say true, because
Explanation:
Earth's atmosphere has a layered structure. From the ground toward the sky, the layers are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Another layer, called the ionosphere, extends from the mesosphere to the exosphere. Beyond the exosphere is outer space.
Which of the following things is a product of science?
A. Singing
B. Modern bananas
C. Astrology
D. Basket weaving
Answer:
b. modern bananas
Explanation:
Science is a discipline which is based upon the study of the natural world on the basis of the facts and data obtain after the experimental trials and associated observations. Fields of scientific study includes biology, physics and chemistry.
Modern bananas is the product of science as it can be composed or constructed by using the knowledge of science and associated technology.
B. Modern bananas are a product of science.
Are modern bananas man-made?The modern-day, not unusual banana is a person-made hybrid of the wild Musa acuminata and Musa balbisiana banana species. Musa acuminata has a fleshy inside, however, it has a very unsightly flavor. Musa balbisiana has a nice-tasting inside but consists of too many seeds. each banana is naturally crossbred in the forests of South Asia.
Much like human beings, bananas are dealing with a pandemic. Nearly all the bananas bought globally are just one type known as the Cavendish, that's at risk of a deadly fungus called Tropical Race 4, or Panama disease. If not stopped, Tropical Race 4 ought to wipe out the $25 billion banana enterprise.
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According to the excerpt above from a health journal, what decision can an athlete make regarding his diet?
A. His diet should include foods such as eggs, nuts, and fish.
B. He should eat a diet high in carbohydrates to form large muscles.
C. He should increase the amount of time he works out to produce red blood cells.
D. He should get an extra hour of sleep each night to increase protein production.
The correct answer is A. His diet should include foods such as eggs, nuts, and fish.
Explanation:
The excerpt from the journal explains the importance of protein intake for athletes as this contributes to many body functions such as "enzyme production" or "growth and repair of tissues". In this context, athletes will need to have an appropriate protein intake, which is essential to growth muscles or repair them if there is a lesion. Moreover, this can be obtained through the intake of foods such as eggs, nuts, fish, grains, among others. In this context, the best decision is expressed in option A.
