Answer:
The villi in the small intestine provide a large surface area with an extensive network of blood capillaries. This makes the villi well adapted to absorb the products of digestion by diffusion and active transport.
Villi have a large surface area adapted to absorb glucose
What is glucose?"Glucose is a simple sugar with the molecular formula C₆H₁₂O₆."It is a monosaccharide.Different enzymes are present in human body that converts polysaccharide and disaccharides into glucose.It is transported in human body through blood.What is surface area?"The area of an outer part or uppermost layer of something."What is villi?Villi is a finger like projection present in the lumen of small intestine.It has large surface area to absorb glucose.Just below the outer surface of villi, blood vessels lie that transports glucose.
Hence, the large surface area of villi helps in absorption of glucose.
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Describe the similarities and differences between the cheek cell wet mount and dental plaque wet mount.
Answer:
Cells from the cheek are a type of epithelial cell, similar to skin. ... They can be seen faintly even at 40x (scanning power), but the most dramatic images are at 400x where the nucleus is clearly visible as a dark spot in the center of the cell.
Explanation:
Explain briefly the forces that govern the upward movement of water and dissolved
mineral salts in plants.
tom of classification.
Answer:
The continuous evaporation of water (or transpiration) from the cells of a leaf crates a kind of suction which pulls up water through the xylem vessles. Thus, transpiration helps in the upward movement of water and dissolved minerals from the roots to the leaves through the stem.
Please I really need your help.
Answer:
yes I can help you your question??
Help me please!!! I need this
Answer:
The correct answer is - option A. 1 (ovary).
Explanation:
Oocytes or egg are produced in the ovaries during the process of the female gametogenesis in female reproductive system. Ovaries are located on each side of the uterus that are oval and small in shape and size and located lower abdomen.
Among other female reproductive organs these are located above others. The ovaries produce oocytes and hormones It is the site at which primordial germ cell (PGC), become primary oocytes.
Thus, the correct answer is - option A. 1 (ovary).
Design a controlled experiment to test the effect of water temperature on goldfish. be sure to include your hypothesis, independent variable, dependent variable as well as experimental group and control group.
Answer:
In this experiment, indepedent variable will be temperature and dependent variable will be the respiratory rate of goldfish. Temperature affects the respiratory rate of goldfish, as it's respiratory rate decreases with decrease in temperature of water, the experiment is as follows:
Take two glass containers filled with water A and B and put one goldfish in each container.Measure the temperature of the water using a thermometer.Count mouth movement of both the fishes in certain time.Now put some ice in container B that will decrease the temperature of water and measure the temperature again.Now count the mouth movement of both the fishes for the same time it was counted earlier.The result will be that respiratory rate of goldfish decreases with the decrease in temperature in container B in comparison to container A goldfish.
An experiment meant to determine the cause of an effect, the effect is the independent variable, while the cause is the dependent variable
A controlled experiment to test the effect of water temperature on goldfish is designed as follows:
The experimental group are: The gold fish in a glass Jar X filled with fresh water and with the lid left open (the treatment of temperature reduction is applied to the experimental group)
The control group are: A second gold fish (selected at random) of the same size, in another glass jar Y filled to the same level with fresh water collected from the same source of the first gold fish
Independent variable: The independent variable is the temperature of the water which will be varied by placing ice cube gradually into the glass jar B
Dependent variable: The number times the gold fish gulp air by rising to the surface, and or the number of time goldfish opens its mouth, which indicates that the goldfish is breathing
The hypothesis: The breath rate of goldfish decreases with decrease in temperature because the goldfish metabolic rate decreases and the water holds more dissolved air and therefore oxygen at a reduced temperature
The Experiment Design:
The experiment is conducted by measuring the initial temperature and breathing rate of both fishes
The temperature of the fresh water in jar X is decreased gradually by adding ice cubes and recording the temperature and breathing rate of the goldfish
A similar experiment from an online source (Maryland School improvement website) the following results where obtained
[tex]\begin{array}{|c|cc|} \underline {Breathing \ rate}&&\underline {Water \ Temperature } \\&&\\ (Dependent \ Variable)&&(Independent \ Variable)\ \\&&\\103&&78.8 ^{\circ}F\\78&&68^{\circ}F\\55&&57.2^{\circ}F\\28&&46.4^{\circ}F\\4&&35.6^{\circ}F\end{array}\right][/tex]
From the experiment, it can be seen that the in the experimental group dependent variable, which is the breathing rate of the goldfish reduces as the temperature which is the dependent variable is reduced
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What’s the food chain for algae,seal lion,zooplankton,squid and salmon
Answer:
algae, zooplankton, salmon,squid, seal,lion
The food chain is algae, zooplankton, salmon,squid, seal,lion.
Foodchain provides blockchain technology to trace and digitally authenticate food products, enabling a transparent, safe and reliable supply chain ecosystem.
What are the 4 food chains?It is a way of classifying animals, plants, and fungi that eat other organisms in order to survive. The four levels in this food chain are: primary consumers, secondary consumers, tertiary consumers, and finally decomposers or phytoremediators.
Thus, algae, zooplankton, salmon,squid, seal,lion.
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Classify each of the following changes as either exothermic or endothermic. (4 points) Burning propane: ____________________ Using a chemical hand-warmer: ____________________ Photosynthesis in plants: ____________________ Lighting a laboratory burner: ____________________
Answer:
Classify each of the following changes as either exothermic or endothermic. (4 points) Burning propane: _____exothermic_____________ Using a chemical hand-warmer: __________endothermic_________ Photosynthesis in plants: _________endothermic___________ Lighting a laboratory burner: ________exothermic____________
Describe ways that water pollution occurs. Describe how greenhouse gases contribute to climate change.
Greenhouse gases are transparent to incoming (short-wave) radiation from the sun but block infrared (long-wave) radiation from leaving the earth's atmosphere. This green house effect traps radiation from the sun and the planet's surface.
Membrane-bounded vesicles that contain enzymes for oxidizing small organic molecules with the formation of hydrogen peroxide are Group of answer choices
Answer:
peroxisomes
Explanation:
The peroxisomes represent one of the organelles of the cell. They are usually small and characterized by membrane-bound vesicles that contain oxidative enzymes.
The enzymes in peroxisomes are involved in the oxidation of organic molecules - a process that leads to the formation of hydrogen peroxide. The later is further converted to water and oxygen by the constituent catalase enzyme of the peroxisomes. Fatty acids are also oxidized in peroxisomes but instead of hydrogen peroxide, acetyl groups that are utilized in other biosynthetic reactions are produced.
Soil moisture (wethess) is
important for...?
A. it is a determination of how much water the soil can
hold and how easily water moves through,
B. it is evidence of how easily the process of runoff in
which the soil is filtered can occur.
C. Both & B
D. None of the above
Explanation:
Soil moisture is a key variable in controlling the exchange of water and heat energy between the land surface and the atmosphere through evaporation and plant transpiration.
For the cells of the body to function properly, blood pH must be maintained between 7.35 and 7.45, a very narrow range. Buffer systems, the respiratory system, and the kidneys work together to help maintain acid-base balance.
a. True
b. False
Answer:
ddddddddddddddddddddddddddddddddddddddddd
Explanation:
Flowers may be solitary, as in a zinnia or dahlia, or appear in clusters or a/an _______________, as in a/an _______________. g
Answer:
The answer is "inflorescence, oak"
Explanation:
An inflorescence is a flower group, which are clustered nearby in a stalk, which is also known as the peduncle. In lily, the individual flower was found, not quite as groups. However, the flowers are set as an inflorescence in the oak tree. It refers to a group or community of a flower cluster borne on a flower, which is traditional flowers of oak are called catkins, that's why 'inflorescence, oak' is the reaction.Bree Wakefield is a 19 year old college student, living in a dormitory on the campus of her university. She started to feel poorly and began to miss classes. She was diagnosed with a disease of the CNS ?
Answer:
We don't know. Possibly not
Explanation:
CNS diseases are related to the nervous system
symptoms include memory loss or lack of coordination
which doesn't seem to be the case
she probably is feeling a mild headache
If the two chromosomes of a homologous pair carry the same allele for a particular gene, the individual is said to be:_____.
Answer
H0m0zygous
Explanation
The answer to the question is in the attachment. Please open the attachment
atch the term with the correct cellular process or definition. - A molecule containing genetic information - RNA base that pairs with adenine - Carries amino acid to ribosomes - The site of protein synthesis - DNA base that pairs with adenine - Carries the genetic code to ribosomes A. mRNA B. DNA C. tRNA D. Thymine E. Uracil F. rRNA G. Ribosome
Answer:
A molecule containing genetic information - DNA
RNA base that pairs with adenine - Uracil
Carries amino acid to ribosomes - tRNA
The site of protein synthesis - Ribosome
DNA base that pairs with adenine - Thymine
Carries the genetic code to ribosomes - mRNA
Explanation:
DNA is the molecule that is responsible for conveying genetic information in living organisms. It is made up of deoxyribose sugar, a phosphate group, and purine/pyrimidine bases. The purine bases consist of adenine and guanine while the pyrimidine bases include thymine and cytosine. As a matter of rule in the DNA, Adenine base always pairs with Thymine base while the Cytosine base always pairs with Guanine base.
RNA on the other hand is single-stranded unlike the double strands of DNA. It has all the nucleotide bases present in DNA except that the Thymine bases are usually replaced with Uracil.
There are three types of RNA:
the messenger RNA that is responsible for carrying genetic code from DNA to the ribosome for translation purpose, the transfer RNA responsible for carrying amino acids to ribosome during the translation process; and the ribosomal RNA which forms an integral part of the subunits of the ribosome itself.A group of organs working together to achieve a common function is known as:
-an embryo.
-an organ system
-multipotent.
-a tissue.
Answer:
The answer is B an Organ system
Answer:
an organ system
Explanation:
The correct answer is organ system. A tissue is a group of cells working together to achieve a common function. An embryo is a fertilized egg that has developed from a zygote. Multipotent merely refers to a type of stem cell that has limited specialization capabilities relative to the capabilities of totipotent and pluripotent cells.
Which of the following correctly describes the process of Translation?
I. tRNA anticodon bonds to mRNA codon
II. Ribosome bonds to mRNA strand
III. Ribosome reaches a STOP codon and detaches from the mRNA
IV. Each tRNA adds an Amino Acid to the chain as the Ribosome moves along the mRNA
V. Complimentary mRNA strand is made from DNA template
Answer:
I. tRNA anticodon bonds to mRNA codon
II. Ribosome bonds to mRNA strand
III. Ribosome reaches a STOP codon and detaches from the mRNA
IV. Each tRNA adds an Amino Acid to the chain as the Ribosome moves along the mRNA
Explanation:
Translation is the second process of gene expression in which a protein molecule is synthesized from the information in a mRNA strand. Translation occurs in the RIBOSOME (an organnelle for protein synthesis made up of ribosomal RNA (rRNA) and proteins). The process of translation occurs in three stages viz: Initiation, Elongation and Termination.
Initiation occurs when the ribosome binds to the mRNA strand in the cytoplasm. The mRNA sequence is then read in a group of three nucleotides called CODON by the ANTICODON of a transfer RNA (tRNA). The basis of reading is the complementary base pairing rule i.e. A-U, G-C. Options I and II describes this stage.
In the elongation stage, the tRNA carries an amino acid corresponding to what it reads in the mRNA codon to the growing polypeptide chain. The amino acids bonds to one another via a peptide bond. As each codon is being read, the mRNA gradually moves over the means sequence. Option IV describes this stage.
Elongation stage continues until any of the stop codons (UAA, UAG, and UGA) are finally encountered by the trans in the ribosome. Since, there are no corresponding anticodons that can read the stop codons, they signal the termination of the translation process. The ribosome then detaches from the mRNA sequence. Option III describes this stage.
Note, option V describes TRANSCRIPTION not TRANSLATION.
what type of molecule do plant cells use for long term energy storage
Answer:
ATP
Explanation:
In plants, energy is stored in the form of ATP and NADPH. Energy is produced in the presence of light it is in the thylakoids and mitochondria.
ATP: Adenosine triphosphate
NADPH: nicotinamide adenine dinucleotide phosphate hydrogen
all of the following are examples of organic matter soil except
This question is incomplete; here is the complete question:
All of the following are examples of organic matter soil except
A. Decaying plants
B. Bacteria
C. Fungi
D. Water
The answer to this question is D. Water
Explanation:
Organic matter derives from living beings, due to this, organic matter is considered as a biological product. In this context, materials such as decaying plants are organic matter because they derive from living organisms and contain biological molecules (most contain carbon). This category does not apply to water, which is composed of hydrogen and oxygen and does not derive from living beings. Thus, the one that is not organic matter is water.
Answer:
D. Water
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Two scientists did the same experiment but arrived at different results. The scientists most likely
Answer:
Two scientists did the same experiment but arrived at different results. The results would most likely provide new testable ideas.
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Answer:
If two scientists did the same experiment but arrived at different results it would most likely provide new testable ideas.
many endangered species are predators that belong to the higher trophic levels. Which is the process that primarily affects animals at the highest trophic levels?
Answer:
Top predators at the highest trophic levels eat lower-level predators and herbivores
Explanation:
A trophic level is defined as one group of organisms in the ecosystem occupying the same level in the food chain, which is composed of different levels (primary, secondary and higher levels). Top predators at the higher levels maintain the trophic balance by eating other species that eat on primary producers/consumers, thereby favoring the homeostasis of the ecosystem.
“Any process used to ask and answer testable questions about observations of the natural world” defines which term? scientific consensus scientific inquiry scientific conclusion scientific hypothesis
Answer:
The answer is B
Explanation:
I took the test
The way in which scientists observe, make a question or hypothesis and get the answers either by doing experiments or from available evidences is called as scientific inquiry. Thus, option B is correct.
What is scientific enquiry?Scientific inquiry refers to a diverse way where scientists aim to get answers in the form of testable explanation either based on evidence from their previous work or from other observation. This can be used of their future experiments.
It has two important functions. Firstly, it provides a descriptive idea about the process of scientific inquiry conduction in practice.
Secondly, it gives an explanation of why scientific inquiry is successful in giving a genuine and reliable knowledge.
The order of scientific inquiry involves the steps such as observing, inferring, classifying, predicting, questioning, interpreting the results from experiments. Hence option B is correct.
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Hormones perform important functions within the reproductive system. During puberty, secondary sex characteristics develop. Which hormone is responsible for the development of these characteristics in the female?
Answer:
estrogen
Explanation:
it helps in regrowth of endometrial regrowth ovulation and calcium absorption and is also responsible for breast development
Hii!! The correct answer is A. estrogen. (:
Which of the following will most likely result in anaerobic respiration? A. Running B. Walking C. Sitting D. Solving Algebra equations
Answer:
A-Running
Explanation:
Anaerobic respiration is the breakdown of glucose to produce energy in the absence of oxygen. We usually respire anaerobically when we exercise so running would be the most likely answer.
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A paleontologist finds a relatively complete skeleton but isn’t sure if it is an ape fossil or a hominid fossil. Which of the following features would NOT help distinguish between the two choices?
a. position of the opening in the skull for the spinal cord
b. design of the pelvis
c. relative length of the hind limbs
d. position of the eyes
Question 1 of 10
The picture below represents a nitrogen atom.
6
How many protons does this atom have?
Answer: 7
Answer:
where is the picture. I could understand your question
Why are G proteins found in cell membrane of the cell ?
Answer:
It is found in cell membrane because to bind extracellular substances and transmit signal.
Describe the process of action potential conduction and neurotransmission from one neuron to another, both electrically (including saltatory conduction) and chemically. Describe how a cell fires an action potential and be sure to address which structures are involved in neurotransmission. Discuss reuptake and enzymatic degradation (breakdown) in the context of the appropriate neurotransmitters.
Answer:
neurons are able to communicate through electrical impulses for example when a stimulus is detected the receptor cells transfer electrical impulses to the sensory neurons which is passed onto the relay neurons in the central nervous system and relayed to the motor neurons. the motor neurons travel with the electrical impulses which are transferred to the effectors to cause a response. However neurons travel and commu icate through synapses
1. Biochemical and differential tests can be incorporated into growth media or performed on isolated colonies after they have been cultured. Give three examples of a differential test that is incorporated into media and three examples that are applied after the colonies have been cultured.
Answer:
Biochemical and differential tests can be incorporated into growth. media or performed on isolated colonies after they have been cultured. ... Three examples of biochemical tests that are done on the colonies are catalase test, indole test, and urease test.
Match the following items.
1 .
nephrons
attachment of leg to pelvic girdle at hip
2 .
pancreas
reabsorption by the kidney of needed materials
3 .
ball and socket joint
attachment of vertebrae to skull
4 .
pivot joint
knee cap
5 .
villi
basic functioning unit of kidneys
6 .
patella
stores bile
7 .
gall bladder
muscle attachment to more movable bone of a joint
8 .
tubules
tiny sacs within the lungs
9 .
alveoli
projections inside small intestine
10 .
insertion
secretes digestive enzymes
Answer:
Nephrons - basic functioning unit of kidneys
Pancreas - secretes digestive enzymes
Ball and socket joint - attachment of leg to pelvic girdle at hip
Pivot joint - attachment of vertebrae to skull
Villi - projections inside small intestine
Patella - knee cap
Gall bladder - stores bile
Tubules - reabsorption by the kidney of needed materials
Alveoli - tiny sacs within the lungs
Insertion - muscle attachment to more movable bone of a joint
As per observation ,all the matches are correct for all options.
Nephrons - functioning unit of kidneys.pancreas - digestive enzymes. joint - attachment of leg.joint - attachment of vertebrae.Villi - projections small intestine.patella - knee cap.Gall bladder - stores bile.Tubules - through the kidney of materials.Alveoli - sacs in the lungs.Insertion - muscle to more movable bone of joint.What is a joint?
These are the joints on the knee and it has movable joints.
Thus it is clearly explained.
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