Answer: Rougher surfaces have more friction between them than smoother surfaces. That's why we put sand on icy sidewalks and roads. You can't slide as far across ice with shoes as you can on the blades of skates (see Figure below). The rougher surface of the soles of the shoes causes more friction and slows you down.
Explanation:
Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force.
Hope it helps you if not sorry
While preparing for her examination, Jenny has been reading late into the night. What is one precaution that she can take to prevent damage to her eyes?
Answer:
Taking breaks outside every half hour to reduce eye stress.
Explanation:
Answer:
she should have proper lighting in the room.keep the book at a proper distance from the eyes. Not too close and not too far. Take breaks in between and splash water on the eyes. This is important especially if she is reading from a screen.Please mark me as brainliest.
Blackheads differ from whiteheads because whiteheads are covered by skin, whereas blackheads are open to the air. What causes the dark coloration
Answer:
Lipids within the sebum react with air, resulting in chemical oxidation and the formation of the black color.
Explanation:
This is the answer. I hope it helps you out.
What's the importance of sun in power supply??
Answer:
It provides solar energy to supply power through solar panels
Answer:
The sun provides more than enough energy to meet the whole world's energy needs, and unlike fossil fuels, it won't run out anytime soon. As a renewable energy source, the only limitation of solar power is our ability to turn it into electricity in an efficient and cost-effective way.
Explanation:
Follow me, thank you.
The picture shows an organ system in the human body.
Kidney
A
Bladder
What is a function of the organ system shown?
Protein digestion begins in the ________; fat digestion begins in the ________. Stomach; small intestine Mouth; stomach Esophagus; stomach Small intestine; small intestine Small intestine; large intestine
Answer:
Protein digestion begins in the mouth
Fat digestion begins in the stomach
Once a protein supply reaches your stomach, hydrochloric acid and enzymes referred to as proteases spoil it down into smaller chains of amino acids. Amino acids are joined collectively through peptides, that are damaged through proteases.
Fat digestion starts offevolved withinside the stomach. Some of the byproducts of fats digestion may be immediately absorbed withinside the stomach. When the fats enters the small intestine, the gallbladder and pancreas secrete materials to in addition spoil down the fats.
What is digestion?The approaches of digestion encompass six activities: ingestion, propulsion, mechanical or bodily digestion, chemical digestion, absorption, and defecation. The first of those approaches, ingestion, refers back to the access of meals into the alimentary canal thru the mouth.
Thus it is well explained.
To know more about the Esophagus refer to link :
https://brainly.com/question/1284374
f Write any functions of collenchyma tissue
Answer:
ChollenchymaServe as the cells that support photosynthesis.Explanation:
The chollenchyma are parenchymal cells that contain chloroplasts.In these cell synthesis of carbohydrate is at its maximum, including the pallisade cells for distribution around the plant.
hope it helps much
by: johnglenleemahusay
Inhalation and exhalation move air into and out of the lungs. What happens when you inhale and exhale
According to the body-cover theory of phonation, which part of the vocal fold is not considered to be a portion of the cover
Answer: B. Thyroarytenoid muscle
Explanation:
The options include:
A. Epithelium
B. Thyroarytenoid muscle
C. Superficial layer of the lamina propria
D. Intermediate layer of the lamina propria
The cover-body theory of vocal fold vibration was published by Hurano in 1974 and he described the morphological structure of the vocal folds. He also divided them into the body and cover layer biomechanically.
The main substance of the vocal fold is regarded as the thyroarytenoid muscle. The muscle provides most of the mass of the vocal cord.
ang pogon na yari sa luwad ano ang ibig sabihin ng pugon
Answer:
use English language please
Answer:
switch country to philippines so filipinos can help you..
cuz this is USA server brainly..
lactase and carbonic annhydrase are examples of what type of substances
Answer:
i dont know
Explanation:
but good luck
Answer:
Enzyme
Explanation:
Lactase and carbonic are examples of enzyme. By definition, an enzyme is a chemical substance found in plants and animals that aids in the production of natural processes. Lactase is a galactoside hydrolyzing enzyme found in the intestines of young mammals and yeasts.
The direct source of energy for the production of oxygen by phytoplankton is
A. sunlight
B. heat
C. shrimp
D. water
Sunlight is the correct answer. Hope this helps; have a great day.
In the nephron, the highest concentration of salt is found surrounding the
Select one:
a. loop of Henle.
b. Bowman's capsule.
c. distal convoluted tubule.
d. proximal convoluted tubule.
Answer:
The correct answer is - distal convoluted tubule.
Explanation:
Proximal convoluted has the maximum amount of reabsorption and the least amount of salt reabsorption. There will be the maximum amount of salt inside the proximal convoluted tubule as it absorbs most of the salt concentration. Whereas distal proximal tubules have more salt concentration in the surrounding area as they are not able to absorb salt in comparison to the other parts of the nephron.
The correct answer is - distal convoluted tubule.
list any 10 common good honey flora.
Answer:
spring vegetation. such as hazel snow drops,primroses,saffron willow,hellsbore,Heather, wild cherry,dandelion,fruit tree,
Explanation:
under the classification
Importance of the water cycle
Answer:
because it ensure the availability of water for all livings, 95% of our world is covered with water but most of them are either forzen or under ground and also purifies water which can be ready for reuse.
Why do only certain cells respond to particular signaling molecules that are sent throughout the body
Answer:
The presence of appropriate receptor dictates which cells will be receptive to a particular signal.
Explanation:
Some cells only respond to certain molecules because they have receptors to accept those molecules. Hence, due to this, only some molecules can be accepted by the cells.
How does a particular cell accept the molecules?Hormones are secreted by endocrine glands into the blood. The endocrine glands, such as the pituitary gland, secrete their hormones directly into the blood, but not all cells of the body can bind to the molecule and perform the cellular functions.
The cells' surface has receptors for molecules such as peptide molecules or polar hormones that can't directly enter the cell. Hence, they bind to the cell surface receptors and send signals with respect to those hormones.
A hydrophobic hormone can directly enter the cell as it can easily pass the plasma membrane. After entering the cell, it has some receptors in the nucleus or in the cytoplasm. This hormone can perform functions such as gene activation after binding with them.
Hence, after binding with receptors, they show their performance, and not every cell has the same receptors for a single molecule.
To learn more about the cell, refer here.
https://brainly.com/question/11985070
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why is there a rich capillary network around all endocrine glands
the hormones secreted by the endocrine glands enter the circulation and are carried throughout the body to act upon target cells located far away from the secreting glands. Thus, endocrine glands are highly vascularized with many small capillaries among the nests of endocrine cells.
Answer:
the hormones secreted by endocrine gland enter the circulation and are carried throughout the body to act apon targeted cells located far away from the secreting gland. that's the reason why endocrine glands are vascularized with small many capillaries amongst the nest of their cells
True or false? Recent genetic evidence indicates that there may be—in the roots of some plants—a response stimulated by the concentration of water in the soil.
Group of answer choices
False
True
I think it will be false only as I have readed in my sister book FALSE
Answer:
I think the answer is false.
Explanation:
I hope this helps
Scientists base many of their investigations on questions that test accepted theories. Which outcome of an investigation would cause a scientist to ask a different question? A) The observed results are different from the expected results
B) The investigation had many sources of error. C) Another scientist proposed the same theory.
D) The expected results could be explained in different ways.
Answer:
A scientist would ask a different question when he or she founds that the observed results are different from the expected results.
Explanation:
When one expects something and gets something else, then one is having a big enough cause to ask for new questions and initiate a new investigation. Scientific investigation is the process by which the researchers and scientists use a planned approach to answer questions regarding the world around us.Describe two pieces of evidence that show that plants cannot make their own food without light
Explanation:
Plants that are denied sufficient light will eventually lose their color and die. Plants deprived of light will grow upward, stretching their stems more rapidly that usual, searching for light. This process is known as etiolation and is a survival mechanism that maximizes the plant's chances of getting to light.
19
Select the correct answer from each drop-down menu,
Albert is a fraud examiner at a bank. He is investigating an employee. What steps should Albert follow when investigating a potential crime?
Albert first checks the employee's ______
for evidence of financial difficulties. Then he finds out that the employee works
in the_____
department where there is greater opportunity for financial crimes. Albert's last step is to simultaneously
interview the suspect's manager, vendors, and clients, who may be_____
the employee
Answer:
Social status, finance and interact.
Explanation:
Albert first checks the employee's social status and family background for evidence of financial difficulties and hardships. Then he finds out that the employee works in the finance department where there is greater opportunity for doing financial crimes. Albert's last step is to simultaneously interview the suspect's manager, vendors, and clients, who may be know and interact with the employee.
how is the structure of endoplasmic reticulum related to its function?
Answer:
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
What bone marking found on the second cervical vertebra projects superiorly into the anterior portion of the vertebral foramen of the atlas
Answer:
Odontoid Process
Explanation:
The Axis has a protuberance (process or projection) called the odontoid process. Where it joins the main body of the vertebra, it has a slight constriction or neck. It has an oval or nearly circular facet on its anterior surface for articulation with the anterior arch of the atlas.
Answer:
odontoid process that articulate with concave facet
Explanation:
the concave facet on the anterior arch or C1 to form the atlantoaxial articulation
Identify the structures in the cell pictured on the right:
Label A
Label B
Label C
Label D
Label E
Options:
1.DNA
2.Nucleus
3.Cytoplasm
4.Cell Membrane
5.Ribosomes
Answer:
1d
2a
3b
4e
5c
is the correct answer for questions
Answer:
B
C
E
A
D
Explanation:
correct edg 2021
An ecosystem is classified as:
A. All animal life in a specific area.
B. All plant and animal life in a specific area
. C. The living and nonliving parts of a specific area.
D. The total of all life on Earth.
the total of all life on earth
What are limiting factors for plant growth
Answer:
factors are;extremely hotdrought gravity ( I suppose ) the amount of minerals in the soilHAVE A NİCE DAY
Explanation:
greeetings from Turkey ツ
Carbon dioxide molecules cannot cling to water molecules.
True
False
Answer:
False
Explanation:
because water molecules are polar and carbon dioxide molecules are nonpolar. Water molecules have a weaker attraction than carbon dioxide molecules.
Regarding the planes of axes, a joint that is capable of moving through all three anatomical planes is called
Answer:
Multiaxial joint
Explanation:
Joint is understood as the set of structures that allow the union of two or more bones and / or cartilage with each other. The synovial joint is a union that is established between bones that have different articular surfaces. There are factors that determine the axes of space in which a joint can be mobilized, in such a way that uniaxial, biaxial or multiaxial joints are identified. The multiaxial joint is movements in around three axes or three degrees of freedom. These joints can perform any movement. This movement that is carried out in the three axes is called circumduction movement (in a circle). The movements that a synovial joint can carry out are sliding, extension, flexion, abduction, adduction, medial rotation, lateral rotation, circumduction, protrusion, retrusion, diduction, pronation, supination, inversion, eversion, among others.
list few points on the importance of sun in power supply.
Answer:
The sun provides more than enough energy to meet the whole world's energy needs, and unlike fossil fuels, it won't run out anytime soon. As a renewable energy source, the only limitation of solar power is our ability to turn it into electricity in an efficient and cost-effective way.
Answer:
Nothing is more important to us on Earth than the Sun. Without the Sun's heat and light, the Earth would be a lifeless ball of ice-coated rock. The Sun warms our seas, stirs our atmosphere, generates our weather patterns, and gives energy to the growing green plants that provide the food and oxygen for life on Earth.
What are substances needed for photosynthesis and what are substances are produced during photosynthesis
Answer:
light
Explanation:
Light is the bedrock of photosynthesis the light here is from the sun.
Chlorophyll
carbon dioxide
water
Now the substances produced during photosynthesis are; ATP( Energy),sugar,oxygen.
Answer: The substances needed are Light and carbon dyoxide
Explanation: The plants take in carbon dyoxide, and emit oxygen for animals and humans, and the plant take in light.
Choose all the right answers.
When the leaf of a fern touches the ground, it may produce a new plant:
by budding from its stem
by growing roots at the point of contact
by planting a spore
by vegetative reproduction
Answer:
I think it is by planting a spore
