Mechanical digestion means breaking down food mechanically. By chewing and tearing with teeth, food breaks down into smaller parts and no enzymes are used.
What is the first step in mechanical digestion?The complex pieces of food that are eaten have to be split into simpler particles that can be acted upon by different enzymes.
This is mechanical digestion, which starts in the mouth with chewing or mastication and continues with churning and combining actions in the stomach.
Thus, this could be the answer.
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A blood sample containing erythrocytes with only surface antigen B on the plasma membrane is ABO blood type ______.
Answer:
ABO blood type B
Explanation:
The blood sample only contains B as a surface antigen (simplified as the sugars clinging to the blood embedded halfway inside) making any other blood type unviable. B would be the only option.
if the bars are held close to one another, why will the hanging bar move toward the held bar
Answer:
Bar 2 is made of rubber and has been rubbed with fur. If the bars are held close to one another, why will the hanging bar move toward the held bar? The bars have opposite charges. Both bars have an increase in negatively-charged particles.
Where did the Vernon war take place?
Explanation:
nayarghat
ashok seven live in Chitwan
Answer:
battle of Vernon is in Florida correct me if I'm wrong
I need help with 45-49!! Please help..
Can taller people hold their breath longer than shorter people?
Answer:
it depends on like if they're doing any sport or no
True or false: Within a myofibril, each I band is bisected by a Z line to which the thin filaments are attached.
Answer:True
Explanation:This statement is true. Because the I band is bisected by a Z line which then anchors thin elements.
The release of neurotransmitter from the presynaptic cell is an example of:
Exocytosis is highly specialized in secretory cells and neurons, is highly regulated, and constitutes the main cellular mechanism for neurotransmitter secretion.
What is exocytosis?It involves the fusion of the vesicular membrane to the plasma membrane, in a calcium-dependent manner that releases molecules that perform specific functions in the body.
Neurotransmitter exocytosis is an essential part of presynaptic transmission and, by extension, of the functioning of the nervous system.
Therefore, we can conclude that exocytosis is highly specialized in secretory cells and neurons, is highly regulated, and constitutes the main cellular mechanism for neurotransmitter secretion.
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The release of neurotransmitters from the presynaptic cell is an example of exocytosis.
What is exocytosis?Neurotransmitter is saved interior small sacs known as synaptic vesicles and is launched into the synaptic cleft of the synapse while a vesicle fuses with the cell membrane.
When a movement capability depolarizes the presynaptic plasma membrane, Ca2+-channels open, and Ca2+ flows into the nerve terminal to cause the exocytosis of synaptic vesicles, thereby freeing their neurotransmitters into the synaptic cleft.
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Which of the following statements is a blaming message?.
Answer:
"You've messed up everything!"
Explanation:
I have actually no clue what you meant by this but that's a blaming message so yeah.
According to the Frank-Starling Law of the heart, as contraction strength increases the stroke volume ________. Group of answer choices decreases shows no change increases
We can confirm that this law tells us that both stroke volume and contraction strength increase at the same time.
What is the Frank-Starling Law of the heart?This law indicates the relationship between the volume of the ventricle, specifically the left ventricle, and the strength of its contractions. It follows the logical approach that if there is more volume in the ventricle, the cardiac muscles will have to stretch to allow for the space, which in turn causes a much stronger contraction when these muscles activate.
Therefore, we can confirm that this law tells us that both stroke volume and contraction strength increase at the same time.
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Research and list the costs and benefits of using uranium as an energy resource. do the
benefits outweigh the costs for the united states?
_________________________ are the most reflective substances on the surface of Earth.
Answer:
The answer is snow
The answer is Gold. Gold has the best reflectivity in the infrared spectrum, and has high resistance to oxidation and corrosion. It is used as reflective material on infrared instruments. Silver has the best initial front-surface reflectivity in the visible spectrum.
Dna is found coiled up into chromosomes within what cellular structure?.
Answer:
Your answer is the nucleus!
Explanation:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. DNA and histone proteins are packaged into structures called chromosomes.
Hope this answers your question!!!
Which of these sources would be most appropriate to use for a research project investigating the effects of antibiotics on the disease-causing organism, E. coli?
The Evening Report - a national television news program
The Daily News - a local newspaper
The World Today - a weekly magazine of important events
The Journal of Bacteriology - a national professional journal
The Journal of Bacteriology - a national professional journal would be most appropriate to use for a research project investigating the effects of antibiotics.
What is a Journal?This is defined as a newspaper or magazine that deals with a particular subject or professional activity.
Option D was chosen as the most appropriate choice because the journal deals with Bacteriology which is related to effects of antibiotics on pathogens.
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A segmented worm seen below is an invertebrate with what type of body symmetry? Question 19 options: Radial Bilateral Asymmetrical.
A segmented worm seen below is an invertebrate body have Bilateral symmetry.
What are the 3 types of symmetry of invertebrates?
At a very basic level of category, true animals can be largely divided into three levels based on the type of symmetry of their body plan:
radially symmetrical, bilaterally symmetrical, and asymmetricalThus, Bilateral symmetry is correct.
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A decrease in the activity of the antidiuretic hormone produced by the posterior lobe of the pituitary gland results in
A decrease in the activity of the antidiuretic hormone produced by the posterior lobe of the pituitary gland results in diabetes insipidus.
What is diabetes insipidus?The term diabetes insipidus makes reference to an imbalance of different fluids inside the body.
Diabetes insipidus leads to the unnormal production of urine, which is associated with several health problems.
In diabetes insipidus, the uncommon generation of urine is colorless, insipid, and/or odorless.
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Explain the structure and function of the eye as a sensory receptor including the role of;
A) The cornea and lens
B) The iris
C) Rod and cone cells in the retina
NOTE - the letters listed are NOT answers, they are separate points that need clarifying.
Answer:
A) The cornea is the transparent outer covering of the eye,The lens is a curved structure in the eye that that bends light and focuses it for the retina to help you see images clearly.The lens works together with the cornea to focus light correctly on the retina. When light hits the retina (a light-sensitive layer of tissue at the back of the eye), special cells called photoreceptors turn the light into electrical signals.
B)The iris is the part of the eye that makes up your eye color. A circular muscle with a hole in the middle.The iris controls the amount of light that enters the eye by opening and closing the pupil. The iris uses muscles to change the size of the pupil. These muscles can control the amount of light entering the eye by making the pupil larger or smaller.
C)Rod cells are highly sensitive to light and function in nightvision, whereas cone cells are capable of detecting a wide spectrum of light photons and are responsible for colour vision.
Note - hope this is accurate :)
How can failing to conserve water contribute to greater water contamination? a. overirrigating fields causes an increase in pollution that results from runoff. b. natural water filters are depleted by the overuse of water. c. sewage systems are more likely to fail due to greater demand, causing higher chances of water contamination. d. all of the above please select the best answer from the choices provided a b c d
Due to scarcity of water, humans will take any way to get to the water as it's miles crucial for survival. The correct solution desire is :D) All of the above.
The Safe Drinking Water Act describes a contaminant as any physical, chemical, organic, or radiological fabric that relies on water. Some contaminants can be poisonous if used at numerous stages in consuming water. Waterborne infections are caused with the aid of using consuming infected or grimy water.
What is contaminate water effect?Contaminated water could make many varieties of diarrheal syndromes, which include Cholera, and different excessive sicknesses consisting of Guinea malicious program infection, Typhoid, and Dysentery. Water-associated ailments make 3. four million deaths every year.
Thus it is clear that d is all answers are correct.
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During the systole phase of the cardiac cycle, the left ventricle contracts and blood is pumped into the aorta. Which of these valves prevents a backflow of blood into the left atrium?
What are some specialized structures that help marine fishes live and reproduce in the ocean?
Some of the specialized structures that help marine fishes live and reproduce in the ocean are as follows:
FinsSwim bladderGillsWhat are specialized structures?Specialized structures are those structures possessed by certain organisms that enable them adapt to their environment.
Fishes are known to adapt to aquatic environments whether marine or freshwater ecosystem.
Therefore, some of the specialized structures that help marine fishes live and reproduce in the ocean are as follows:
Fins - for swimming and changing directionSwim bladder - for buoyancy in waterGills - for breathingLearn more about specialized structures at: https://brainly.com/question/25039796
1. On what type of land does a primary succession first begin to occur?
DNA is located in the ____________________________of eukaryotic cells.
Answer:
DNA is located in the nucleus of eukaryotic cells.
Explanation:
Answer:
The nucleus
Explanation:
Eukaryotic DNA is stored in a nucleus, whereas prokaryotic DNA is in the cytoplasm in the form of a nucleoid.
Image listed below!————-
Answer:
if i'm not mistaken it would be 4/4 because Hmzygous dominant with hmzygous dominant will only produce Hmzygous dominant offspring
How do I get rid of these when watching a video
Answer:
Thats the thing you cant the creator of the video put that there for you to watch other videos
Explanation:
Hello, I don't mean much, but what are the signs and symptoms of cholera?????
Answer:
Diarrhea (Stool appears pale and milky)
Fatigue and weakness
Nausea and vomiting
Dehydration
Electrolyte Imbalance
Low blood pressure
Loose skin and dry mouth
Rapid heart beat
Weight loss
Explanation:
Which question about a soil sample can be answered using the sense of touch?(1 point) What color is the soil? What color is the soil? Is the soil grainy? Is the soil grainy? How quickly does water flow through the soil? How quickly does water flow through the soil? Does the soil smell good or bad? Does the soil smell good or bad?
The question that can be answered using the sense of touch is : ( B ) is the soil grainy
Sense of touch
The graininess of the soil can be felt by the touch of the hands because it is a physical attribute of the soil that can be seen and touched as well. the color of the soil and how quickly water flows through the soil can only be examined with the physical eyes but cannot be felt.
Hence we can conclude that the question that can be answered using the sense of touch is the soil grainy.
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Proteins that use energy from ATP hydrolysis to change the locations and compositions of nucleosomes are called ATP-dependent___complexes.
Answer:
Chromatin-remodeling
Explanation:
In eukaryotes, DNA is tightly wound into a complex called chromatin. Thanks to the process of chromatin remodeling.
Chromatin-remodeling complexes use energy from ATP hydrolysis to alter the arrangement of nucleosomes, making the DNA more accessible to other proteins.
How many types of hydro mimics can the oceanid summon in total?.
Mimics of water. The Oceanid summons a variety of aquatic creatures that must be fought and defeated in order to harm the boss. Oceanid has the ability to spawn eight different types of mimics.
What type of epithelial tissue is found in the proximal and distal convoluted tubules
Answer:
simple cuboidal epithelium
Explanation:
The type of epithelial tissue found in the proximal and distal convoluted tubules is the simple cuboidal epithelium.
What do you mean by Epithelial tissues?The epithelial tissues may be defined as a kind of body tissue that constitutes the surface on all internal and external surfaces of your body, lines body cavities and hollow organs, and is the major tissue in glands.
Proximal convoluted tubules (PCT) are formed by the simple cuboidal tissues in a brush-like border of microvilli to enhance the area of absorption of water and nutrients.
Distal convoluted tubules (DCT) are simply formed by simple cuboidal epithelium. It is found in the cortex and corticomedullary junction.
Therefore, the type of epithelial tissue found in the proximal and distal convoluted tubules is the simple cuboidal epithelium.
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You are sailing in the South Pacific Ocean, far from any plate boundary. Looming lion the horizon is a dark braid, rounded island with sparse vegetation. A few thin flows of orange lava drip into the sea. Some smoky vapor unfurls fork the center of the island. What kind of volcano is this? Explain.
The kind of volcano in this scenario is referred to as a shield volcano.
What is a Shield volcano?
This is the type of volcano whose appearance is like that of a warrior's shield and is formed by the eruption of highly fluid lava.
The lava however becomes thinner as it travels further such that it sometimes drips into neighboring sea.
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which
group is correct?
a. ringworm, mycotic infection, treatment by anthelmintic drug
ne
b. syphilis, lues, treponema pallidum
c. gonorrhea, neisseria, virus
d.trichinae, filariasis, helminthes, penicillin
Answer:
a
Explanation:
because they all cause infections