Answer:
Option B
Explanation:
Polysaccharides play the role of storing sugar and providing structures in living organisms.
Polysaccharides are carbohydrates that give 10 to thousands of monosaccharide units on hydrolysis.
For Example, Starch and Cellulose
What are molecular clocks used for
A- to cure hereditary disease
B- to classify
C- to locate fossils under water
D- to compare homologous structures
Answer:
D
Explanation:
What systems supply food and oxygen needed for respiration?
Answer:
I think its white blood cells or something like that sorry!
Explanation:
The respiratory and circulatory systems deliver oxygen and eliminate metabolic waste. It controls blood pH. Respiration exchanges oxygen and carbon dioxide between the atmosphere and bodily cells.
What is respiration?The passage of oxygen from the outside environment into the cells of the tissues is what is referred to as respiration in the field of physiology. At the same time, carbon dioxide is removed from the tissues and released back into the environment.
Together with the circulatory system, the respiratory system is responsible for supplying the body with oxygen and removing waste products from the metabolic process. Additionally, it helps to maintain a healthy pH level in the blood. The process by which oxygen and carbon dioxide are transported from the outside environment into the cells of the body is called respiration. During this process, oxygen and carbon dioxide are exchanged.
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Vocalizations enable primates to Group of answer choices communicate as humans do. name resources and monitor the social group. communicate, but only between members of the same hierarchy. solve distressing situations among primate groups.
Answer:
name resources and monitor the social group.
Explanation:
Vocalisation is use as a medium of communication in primates. It is an important feature of primates social life. It is use to facilitate social interaction among them selves and this help to establish and endorse relationship that lead to reproductive success.
Vocalisation is use to name resources and monitor the social group because it is use as medium of communication where information is ttransfer among the primates and it's can be use monitor the social group through interaction between members of the group by establishing social bonds and increasing reproductive success.
abstract excretion in animals
Given that,
Abstract excretion in animal,
Excretion in animal :
Excretion in animal is defined as the elimination of metabolic,or nitrogenous waste products from the body of an organism.
Type of excretion are,
(I). Ammonotelism
In this type of excretion the excretory product is ammonia.
(II). Ureotelism
In this type of excretion the excretory product is urea.
(III). Uricotelism
In this type of excretion the excretory product is uric acid.
(IV). Aminotelism
In this type of excretion the excretory product is amino acid.
(V). Guanotelism
In this type of excretion the excretory product is guanine.
why Reproduction is necessary for the survival of a species on this earth?
Answer:
Reproduction is vital to the success of a species. For a species to survive it must be able to produce more offspring than it loses though old age, disease, and predation.
Explanation:
Living things can reproduce in different ways – asexual reproduction and sexual reproduction.
Hope it helps.
I will give the brainliest answer to someone who tells me what friction is
Answer:
friction is the force which comes against our force when we push a object
Which description refers to fog? burns off when it gets dark extends up to 10 miles into the sky is found in areas near bodies of water forms when the ground warms at night after a cool, dry day
Answer:
forms when the ground warms at night after a cool, dry day
Explanation:
fog forms when the ground is cooler then the air around it
Answer:
[tex]\large \boxed{\mathrm{is \ found \ in \ areas \ near \ bodies \ of \ water}}[/tex]
Explanation:
Fog forms when water vapor condenses to tiny droplets of water. The moisture that creates fog is produced from nearby or at bodies of water.
Which of the following is true? Seminal fluid is composed of semen and sperm. Sperm are composed of seminal fluid within a cell membrane. The three ingredients of ejaculate are sperm, semen, and prostate-specific antigen. Semen is composed of seminal fluid and sperm.
Answer:
The correct option is D: "Semen is composed of seminal fluid and sperm"
Explanation:
The semen is ejaculated from the male reproductive organ. It contains sperm cells and seminal fluid. The seminal fluid provides the energy source (fructose sugar) for the sperm to be able to swim towards the female's egg in order to fertilize it.
Some flowers are pollinated by wind or water. How do you think the petals of these flowers will be different from the petals on flowers pollinated by animals? How does cross pollination differ from self pollination?
for self pollination, pollen grains are transferred to the stigma of another plant on the same species while on cross pollination is transferred to the stigma of another plant on a different species of plant.
How are vertebrates different from invertebrates?
Answer:
Vertebrates are those that have backbones or vertebral column, and invertebrates are those that do not have backbones or vertebral column.
Answer:
Vertebrates are those that have backbones or vertebral column and they dont
Explanation:
Fill in the blanks below with apropriate words:
a. Mentalis
b. Masseter
c. Frontalis
d. Sternocleidomastoid
e. Stylohyoid
f. Zygomaticus major
g. Digastric
h. Orbicularis oris
i. Hyoglossus
1. ____________elevates and protrudes lower lip.
2. _____________is a major chewing muscle.
3. _____________ raises the eyebrows. Sternohyoid .
4. _____________originates on the sternum and clavicle.
5. _____________one of the smiling muscles.
6. _____________consists of two bellies.
7. _____________depresses the tongue.
Answer:
1. Mentalis
2.Masseter
3. Frontalis
4. Sternocleidomastoid
5. Zygomaticus major
6. Digastric
7. Hyoglossus
Explanation:
1. Mentalis is a muscle which elevates and protrudes lower lip.
2. Masseter is a major chewing muscle. It is essential for mastication of substances in the mouth.
3. Frontalis raises the eyebrows.
4. Sternocleidomastoid originates on the sternum and clavicle.
5. Zygomaticus major is known as one of the smiling muscles. It is responsible for smiling and facial expressions.
6. Digastric consists of two bellies which are muscle masses and it is found between the jaw and skull.
7. Hyoglossus originates from the hyoid bone and it depresses the tongue.
For a species with a haploid number of 23 chromosomes, how many different combinations of maternal and paternal chromosomes are possible for the gametes based on the independent assortment of chromosomes during meiosis
Answer:
About 8 million
Answer:
About 8 million
Explanation:
importance of science in everyday life
Explanation:
Science is very important in every activities of our daily life. some of them are,
It is used for cooking as the cooking materials are made with various science ideas.It is used for buying and selling purposes such as measuring amounts of quantities.It is used for lightning our house and also run various type of electronic devices to make our life effective through electricity. We use science in medical sector as all the requirements in medical sector needs the knowledge and skill of science from medicine to surgery. when we make compost manure, there should be bacteria todecompose it.hope it helps..
Answer:
sicience is in our everyday life. It is important to understand how science is incouprated in our every day life.
The tides come in and out every day like clockwork. The flowing in and out is called Select one: a. ebb and flow. b. coming and going. c. internal movement and external movement. d. entering and leaving.
Answer:
a. ebb and flow.
Explanation:
Hope it helps.
The flowing in and out of tides is called ebb and flow. Details about tides can be found below.
What is a tide?A tide is the periodic change of the sea level, particularly when caused by the gravitational influence of the sun and the moon.
According to this question, a tide comes in and out every day like clockwork.
The in-flowing tide is called flow while the out-flowing tide is called ebb. Therefore, the flowing in and out of tides is called ebb and flow.
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The tail portion of an individual phospholipid molecule: Please choose the correct answer from the following choices, and then select the submit answer button. is hydrophobic and nonpolar. is hydrophilic and nonpolar. is hydrophobic and polar. is hydrophilic and polar. contains bonds with unequal sharing of electrons.
Answer:
The correct answer is - hydrophobic and nonpolar.
Explanation:
Phospholipids are amphipathic molecules which means they show the both hydrophobic and hydrophilic properties. This property is due to the fact that they have a phosphate head that is hydrophilic, and polar while there are also two hydrophobic nonpolar fatty acid tails.
The fatty acid chains have a cis double bond and are the uncharged, nonpolar tails, which are hydrophobic.
Thus, the correct answer is - hydrophobic and nonpolar.
In good-quality surface soil, approximately what percentage of the volume is made of mineral and organic matter?
Answer:
The chemical composition of the soil, the topography, and the presence of living organisms determines the quality of soil. In general, soil contains 40-45% inorganic matter, 5% organic matter, 25% water, and 25% air.
Explanation:
Answer:
50 percent
Explanation:
The composition of soils varies from place to place. But in good-quality surface soil, mineral and organic matter make up about half the volume. The other half is made of pore spaces that are filled with air and water.
Even after Timon read "Psychedelics for Dummies," he was unable to produce LSD in the lab. He decided he would have to find a hallucinogen naturally. Therefore, he should look for which naturally occurring hallucinogen?
Answer:
The correct answer is - Psilocybin , Mescaline and LSD
Explanation:
Hallucinogens are various drugs or medications that change an individual's awareness with their environmental factors just as their own contemplations and emotions.
A hallucinogen is a psychoactive medication or drug that regularly or normally causes hallucination, perceptual peculiarities, and other significant subject changes in thought, feeling, and cognizance that are not ordinarily experienced to such degrees with different classes of medications. these could be synthetic or naturally occurring. The natural occurring hallucinogens are Psilocybin , Mescaline and LSD and other
Thus, the correct answer is - Psilocybin , Mescaline and LSD
What is a ‘control’ in an experiment
Answer:all the things that you keep the same in the experiment
Explanation:
Four importance of farm record
Explanations.
Farming record is a document that is used
to keep account different activities,event and materials regarding the farming records.
What is the correct chronological order of important evolutionary events? Group of answer choices Evolution of bipedalism; regular use of stone tools; enlargement of brain to around 1,450 cc; increase in enamel thickness.
Answer:
evolution of bidepadlism,
increase in enamel thickness,
regular use of stone tools, enlargement of brain to around 1,450 cc
Explanation:
10.La respiración vegetal involucra un conjunto de reacciones celulares por las cuales carbohidratos sintetizados por la fotosíntesis son oxidados a C02 y H20. En este proceso, la energía liberada se transforma en Su mayoría en ATP y compuestos de carbono intermediarios precursores de la síntesis de aminoáci- dos y compuestos nitrogenados derivados, entre otros. Podemos deducir de lo anterior que en el proceso de crecimiento de las plantas, la fotosíntesis y la respiración A. Se complementan en beneficio del crecimiento de la planta. B. Son procesos independientes para asegurar la subsistencia de la planta. C. Se alternan para garantizar que la planta tenga energía en todo mo- D. Ocurren simultáneamente para que permanentemente.
Answer:
La opcion mas correcta seria : "Se complementan en beneficio del crecimiento de la planta"
Explanation:
En la respiracion de los vegetales o plantas, obtienen como resultado dioxido de carbono y agua, estos dos productos luego son utilizados en la fotosintesis para poder formar la unidad energetica que es la glucosa y asi generar el autoabastecimiento alimenticio.
Glycoproteins:___________.
a. contain unbranched oligosaccharides.
b. are a small fraction of the total number of proteins in a human cell.
c. are many of the cell surface and extracellular proteins.
d. have oligosaccharides covalently attached to aspartate residues.
Answer:
[tex]\boxed{Option \ D}[/tex]
Explanation:
Glycoproteins have oligosaccharides covalently attached to aspartate residues (type of amino acids) . They are not unbranched oligosaccharides.
Answer:
[tex]\boxed{\mathrm{Option \: D}}[/tex]
Explanation:
Glycoproteins have oligosaccharides covalently attached to aspartate residues.
They are proteins which contain oligosaccharide chains that are covalently attached to the amino acid side-chains.
When taking a person's blood pressure, after proper inflation of the cuff, the first pulse sound that is heard through the stethoscope indicates that blood is flowing through the artery past the cuff. The reading on the pressure gauge at this point represents:_________.
Answer:
Diastolic pressure
Explanation:
The reading on the pressure gauge at this point represents the Diastolic pressure. In a medical context, this is the pressure of the blood in the arteries when the heart is filling. In the numerical readings, this is represented by the lower end of the two blood pressure measurements. For example, if the individual's blood pressure is taken and the measurement of 120/80 is taken, then 80 is the diastolic pressure in this scenario.
Planets near the Sun are composed of mainly rock and iron. How does the Solar Nebula theory account for this? Select one: a. The planets that today are near the Sun were captured. b. The forming Sun’s heat prevented substances such as ices from condensing in the inner Solar System. c. The Sun’s magnetic field attracted all of the iron in the nebula into the inner Solar System. d. As the planets were captured, denser ones were pulled closer to the Sun by gravity. e. The planets that today are far from the Sun were captured. Clear my choice
Answer:
B
Explanation:
which following pairs of body functions are normally involuntary actions but can be controlled voluntary for a short periods of time
Explanation:
Medulla oblongata controls consciousness and arousal (the reticular formation) and its three vital reflex centers control the blood vessels diameter, heartbeat and breathing rate (the involuntary actions). This makes option D correct. The lower part of brain stem forms the hind brain which comprises of medulla oblongata, pons and cerebellum. This makes option C incorrect as medulla is not part of forebrain. Cerebellum is the convoluted subdivision of brain stem and is associated with coordination of muscular movement, muscle tone and balance i.e. the voluntary actions. Option B is incorrect. Spinal cord, along with brain, forms central nervous system which serves to integrate the sensory inputs from internal and external environment as received by sensory neurons and process and finally transmit the nerve impulses to effectors (muscles and glands). This makes option A incorrect.
A blood lactic acid sample was collected in a gray-top tube that was drawn after sequentially filling red-top, green-top, and purple-top tubes. The lactate level was 30 mg/dL. A second lactic acid sample was ordered 1 hour later and drawn in a gray-top tube without filling any other tubes. The result was 20 mg/dL. What is the most likely explanation of this result
Answer:
Homeostasis has been established for a very long time. This must have affected the result of the first reading, which has become high.
Explanation:
Homeostasis refers to the state of equilibrium in the chemical and physical conditions of a system. The time it takes to establish, as well as the time it remains active within a system, provides different results, which are totally related to the homostatic forms presented.
The time between homeostasis in the blood lactic acid samples shown in the question above was what allowed the difference between the two reading results. The first result was high, because it was the result of an extended period of homeostasis.
The number and location of transmembrane segments in an integral membrane protein can be inferred from the amino acid sequence of the protein by a:__________.
a. computer-generated DNA sequence.
b. freeze-fracture replica.
c. prediction of glycosylation sites.
d. Western blot.
e. hydropathy plot.
Answer:
The number and location of transmembrane segments in an integral membrane protein can be inferred from the amino acid sequence of the protein by a computer-generated hydropathy plot (which is actually a combination of option A and E)
Explanation:
The hydropathi plot is something that enable us to measure the hydrophilicity or hydrophobicity of amino acids in a protein. The computer-generated hydropathy plot identifies the number and location of transmembrane segments. There are plenty of proteins in cells membranes that play different roles and functions. Some of them react to different ph, others with different minerals and other react to water.
Protein molecules are found in the lipid bilayer structure of the plasma membrane. The proteins are found as integral or peripheral proteins.
The location and the number of transmembrane segments can be given by:
Option e. Hydropathy plot
The technique can be explained as:
The hydropathy plots are capable of determining the position and the quantity of the integral membrane protein.It enables measuring the hydrophobic and hydrophilic sides of amino acids of proteins. This enables in identifying the property of the side chain amino acid.Therefore, a hydropathy plot should be used.
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Consider this animal cell.
The organelles in an animal cell are labeled. Part F is a network of hollow tubes, flattened sheets, and round sacs.
What is the function of the organelles that are labeled F?
to temporarily store water, waste products, food, and other cellular material
to produce proteins for the cell
to move proteins and other substances through the cell
to contain digestive enzymes that break down waste material and debris in the cell
Answer:
Part F is endoplasmic reticulum ( ER).
To move proteins and other substances through the cell.
Explanation:
Which are three requirements for forming petroleum?
Answer:
i think it is oxygen, heat, steam heat.
Explanation:
What happens when organisms populate a new area and are isolated geographically from other populations of the same species?
Answer:
The geographically isolated population will acquire genetic differences that eventually will lead to its speciation
Explanation:
Geographic isolation is a biological process produced by the physical separation between organisms of the same species, which may be caused by different types of geographical barriers such as, among others, mountains, earthquakes, rivers, etc. Geographic Isolation produces genetic differences between the separated groups. Over time, these genetic differences will lead to the reproductive isolation of the new population, thereby leading to the formation of a new species in the course of evolution, in a mechanism referred to as speciation.