when you extend your elbow to put down a heavy object (e.g. placing a heavy textbook on a table), your biceps is being lengthened, but it is still contracting to control the downward movement. what type of contraction is this?
Answers
Your biceps are stretched when you extend your arm to set down a heavy object (such a large book on a table), but they are still contracting to regulate the downward movement. Isometric contraction is a form of contraction.
When tension is applied, an isometric contraction happens because the length of the muscle remains mostly unchanged. Isometric contraction, for instance, occurs while doing a biceps curl while holding the weight stationary rather than actively raising or lowering it. Isometric contraction include tightening (contracting) a specific biceps muscle or group of muscles. Isometric exercises do not considerably change the muscle's length. Furthermore, the injured joint is immovable. Isometric exercises help to maintain strength.
learn more about Isometric contraction here:
https://brainly.com/question/14643272
#SPJ4
Related Questions
What do these two changes have in common?
newly poured concrete becoming hard
sauce burning on a stove
Select all that apply.
They both only change physically
Both conserve mass
Both are chemical changes
Both are caused by heating
Answers
The following is what these two modifications share in common: they both preserve mass and are chemical modifications.
Option B and C are correct .
What are chemical alterations?Chemical changes occur when a new product is produced and the molecular makeup is completely altered. New products are made by changing chemicals. Changes in chemicals can't be reversed and last forever. It demonstrates that chemical change cannot be reversed by altering or adjusting the experimental adjustments.
The concrete's transformation into hardness is a chemical one because of the water in the freshly poured concrete, which makes it possible for the concrete to harden through a chemical process called hydration. During the concrete hardening process, there is a chemical change as cement and hydrates are formed. Instead of drying, concrete hardens through a chemical shift. It maintains a constant mass. Concrete solidifies from a liquid state.
Incomplete question :
What do these two changes have in common?newly poured concrete becoming hard ,sauce burning on a stove
Select all that apply.
A.They both only change physically
B.Both conserve mass
C.Both are chemical changes
D.Both are caused by heating
Learn more about chemical changes :
brainly.com/question/11231920
#SPJ1
Kepler correctly proposed that the planets orbited the sun in _____ orbits. a. circular c. linear b. elliptical d. spherical Please select the best answer from the choices provided
Answers
Answer:
Elliptical. Hope this helps!
What is the percentage of recorded pulse rate (62-69)
Answers
Answer:
A normal resting heart rate can range anywhere from 40 to 100 beats per minute. Below is a chart relating resting heart rate and fitness level.
Explanation:
Answer:
40 to 100 beats per minute
Explanation:
Health class in college is how I know
eventually chromatin will supercoil into these x-shaped structures called
Answers
Eventually, chromatin will supercoil into structures called chromosomes. Chromosomes are X-shaped structures that form during the process of cell division.
Prior to cell division, the chromatin fibers condense and coil tightly, resulting in the formation of distinct chromosomes.
These chromosomes are visible under a microscope and contain the genetic material of an organism.
To know more about chromatin refer here
brainly.com/question/691971#
#SPJ11
________ Is the nitrogen base found only in RNA
Answers
Answer:
Uracil
Explanation:
How is the equilibrium constant calculated?
Answers
why are neurotransmitters necessary at the neuromuscular junction
Answers
Neurotransmitters are required at the neuromuscular junction to initiate a new nerve impulse along the membrane of the muscle fiber and therefore make the muscles contract.
Neurotransmitters are the chemical messengers that help in transmitting electrical impulses to and from the brain by means of nerve cells. The electrical impulse is transmitted from one neuron to another by conversion into the chemical form by means of neurotransmitters.
Muscles are the loose masses of tissues that provide a definite shape to the body and also support the organs inside the body. The human body is composed of three types of muscles: skeletal muscles, smooth muscles and cardiac muscles.
To know more about neurotransmitters, here
brainly.com/question/28101943
#SPJ4
Give several reasons why nutrition has become a national concern.
Answers
Answer: A healthy diet prevents malnutrition and protects from diseases like obesity, heart disease, diabetes, cancer and stroke. Today, many people's diets consist of more saturated fat, trans fats, sugars, and more sodium than fruits, vegetables and dietary fiber. Your body's health reflects what you put into it.
The robust varieties of australopithecus have pronounced ridges on their cranium, flaring cheek bones, and small molars?
Answers
The "robust" australopiths are a set of hominins with massive cheek teeth and strongly built jaws that lived along the earliest participants of our personal genus, Homo, approximately 2.five-1.four million years ago.
Robust species like Paranthropus robustus had big teeth in addition to a ridge on the pinnacle of the cranium, wherein robust chewing muscle mass connected. those functions allowed people to weigh down and grind hard foods along with nuts, seeds, roots, and tubers inside the back of the jaw; however, P.
Consequently, sturdy species had been herbivores that fed on a heavy and gritty diet. Therefore, the principle difference between gracile and strong is the facial and cranial functions, which caused their kind of diet in Australopithecus.
Learn more about diet here: https://brainly.com/question/25117749
#SPJ4
What kind of rock is this?
igneous
Where would this rock most likely be formed?
To which group of rocks would this rock belong?
Rocks can be classified based on texture. The
size of the grains in a rock affects its texture.
Coarse-grained rocks have large grains, and fine-
grained rocks have small grains.
Rocks formed from magma under Earth's surface
have larger grains than rocks formed from lava
on Earth's surface. This is because magma cools
slower underneath the ground than it does above
ground.
Answers
Metamorphic Rock Isua
Metamorphic rock, estimated to be as old as 3.8 billion years, located near Isua at Qorqut Sound, Greenland.
Answer:
What kind of rock is this?
✔ igneous
Where would this rock most likely be formed?
✔ underneath Earth’s surface
To which group of rocks would this rock belong?
✔ coarse-grained rocks
Explanation:
Just worked on this assignment
What are some examples of negative feedback?
Select all that apply.
The body produces a protein. In turn, the protein triggers the body to make more of the protein.
Pupils getting smaller to reduce the amount of light reaching the eye when the light is very bright.
Cells increasing their activity to produce more heat when it is cold.
The kidneys reducing the water level in the body when a person drinks a lot of fluids.
WILL GIVE BRAINLIEST
Answers
Answer
Cells increasing their activity to produce more heat when it is cold
Explanation
Negative feedback is a strategy of the body to maintain homeostasis, that is, to maintain the dynamic balance of the body. It can be defined as a situation where the body causes a negative change, contrary to the factor that is causing the body to become unbalanced.
Cells increasing their activity to produce more heat when it is cold.
What is Negative feedback?Negative feedback is a strategy of the body to maintain homeostasis, that is, to maintain the dynamic balance of the body. It can be defined as a situation where the body causes a negative change, contrary to the factor that is causing the body to become unbalanced.
When a system's outputs are subsequently fed back into it, the influence of successive iterations is minimized or reduced. This situation is known as negative feedback.
Negative feedback loops in markets can thereby lessen volatility, for instance through contrarian or value investment.
Therefore, Cells increasing their activity to produce more heat when it is cold.
To learn more about Negative feedback, refer to the link:
https://brainly.com/question/11312580
#SPJ2
Which of the following is the effect to contractile vacuole when Amoeba sp is placed in salt water?
A. Burst and die
B. Stop contracting
C. Contract at fast rate
D. Contract at slow rate
Answers
which enzyme is crucial for transfer of electrons from cytosolic nadh into the mitochondrial matrix in muscle cells?
Answers
Answer: The enzyme that is crucial for the transfer of electrons from cytosolic NADH into the mitochondrial matrix in muscle cells is called the "malate-aspartate shuttle." This shuttle system utilizes two enzymes, malate dehydrogenase and aspartate aminotransferase, to transfer electrons from NADH in the cytosol to the mitochondrial matrix.
What are the five main functions of nematodes in soil? (Site 1).
Answers
Answer:
Bacterial feeders, fungal-feeders, plant parasites, omnivores, and food for predators
Explanation:
Nematodes help distribute bacteria and fungi through the soil and along roots by carrying live and dormant microbes on their surfaces and in their digestive systems. Nematodes are food for higher level predators, including predatory nematodes, soil microarthropods, and soil insects.
Answer: Nematodes play an important role in nutrient cycling. In particular, they play a key role in the nitrogen cycle. Nematodes take in nitrogen and excrete it in a form that plants and bacteria can use.
Nematodes graze on bacteria, plants, and other soil organisms. In ecosystems, nematodes play a major role in regulating the populations of their prey organisms.
Nematodes carry fungi and bacteria in and on their bodies. As nematodes move through the ecosystem, they disperse the bacteria and fungi.
Nematodes are a part of food chains and food webs. They are an important food source in many ecosystems.
Nematodes impact the health of other organisms. Some help prevent, or suppress, disease by eating other disease-causing organisms. Other nematodes cause disease in plants and animals.
True or false. An ecosystem is only a collection of biotic and abiotic factors.
I've learned about biotic and abiotic and how they work and live however is there anything else in the ecosystem or is that it? This is purely out of my curiosity
Answers
Answer:
\(\boxed{\textbf{True}}\)
Explanation:
⇒These abiotic and biotic factors interact with each other, keeping the ecosystem and environment moving along. The biotic and abiotic components are linked together through nutrient cycles and energy flows.
\(-TheAnimeGirl-\)
Why are bacteria both consumers and decomposers?
Answers
Answer:
Bacteria are both consumers and decomposers because they are capable of obtaining their energy and nutrients either by consuming other living organisms or by breaking down dead organic matter. Some bacteria are able to break down complex compounds in dead organic matter, such as cellulose or lignin, which other organisms are unable to digest. Other bacteria act as consumers and obtain their energy and nutrients by feeding on other organisms, either by parasitizing them or by consuming them as prey. Additionally, some bacteria are capable of photosynthesis and can produce their own energy, similar to plants. This versatility in obtaining nutrients allows bacteria to thrive in a wide range of environments, from soil to water to the human body.
Bacteria are both consumers and decomposers because they have the ability to obtain energy and nutrients from a variety of organic materials.
Explain Bacteria as consumers and decomposers.As consumers, bacteria can directly consume other organisms for their nutrients, such as when they feed on dead or decaying matter.
As decomposers, they break down organic matter into simpler compounds, such as carbon dioxide and water, which can then be used by other organisms.
Bacteria are able to perform these dual roles because of their unique metabolic processes. Many bacteria are capable of aerobic respiration, which allows them to use oxygen to break down glucose and other organic compounds to obtain energy.
Some bacteria are also capable of anaerobic respiration, which allows them to obtain energy in the absence of oxygen.
In addition, some bacteria have the ability to break down complex organic compounds through the process of fermentation.
Fermentation involves the conversion of sugars into simpler compounds such as lactic acid, ethanol, and carbon dioxide, which can then be used as an energy source by the bacteria.
To know more about Decomposers:
https://brainly.com/question/28896356
#SPJ2
PLEASE NO LINKS!! Just tell me the answer
1. What percentage of the offspring will have Type O blood?
A. 0%
B.50%
C.25%
D.75%
Answers
Answer:
I will say 50%
Explanation:
A sequence is defined recursively by the formula f(n + 1) = –2f(n). The first term of the sequence is –1.5. What is the next term in the sequence?
Answers
Answer:
3
Explanation:
n = - 1.5
f(n+1) = -2f(n)
f(n+1) = -2 * -1.5
f(1+1) = 3
f(2) = 3
explain how gene therapy can impact the future of humans as it relates to curing diseases and gene selection.
Answers
Gene therapy has been proposed by scientists as a potential treatment for a variety of illnesses, including AIDS, cancer, diabetes, heart disease, hemophilia, and diseases like cystic fibrosis and cancer.
How will gene therapy affect society and human health in the future, in your opinion?Gene disorders are the cause of about 4,000 different medical conditions. If some of these genetic issues can be resolved through gene replacement or manipulation, those who have these diseases may live longer, healthier lives free from the symptoms and costs of related medical care.
How gene therapy functions
They can take the place of a gene that is absent or causing an issue.
In order to treat disease, they can add genes to the body.
Alternately, they can disable the problematic genes.
To know more about gene therapy visit:
https://brainly.com/question/13022890
#SPJ4
The process where new oceanic crust is formed by volcanic activity what evidence supports this
Answers
The process of new oceanic crust formation is known as seafloor spreading, and there is evidence to support this theory. One of the most significant pieces of evidence is the pattern of magnetic striping observed on the ocean floor.
As magma rises from the mantle and solidifies to form new crust, it records the direction of the Earth's magnetic field at the time of solidification. Over time, the Earth's magnetic field reverses, so the stripes on either side of the mid-ocean ridge will have different magnetic orientations. By studying these patterns, scientists have been able to determine the rate of seafloor spreading and the age of the oceanic crust.
Additionally, seismic studies have revealed the existence of a long, continuous mountain range, called the mid-ocean ridge, which runs through the center of all the world's oceans. This ridge is characterized by volcanic activity, where magma from the mantle rises to the surface and solidifies to form new oceanic crust. Overall, the evidence supports the theory of seafloor spreading and the ongoing formation of new oceanic crust.
To know more about seafloor spreading,
https://brainly.com/question/27795595
#SPJ11
Ferns, such as the one in the picture, can be found today. They are usually found
growing in warmer climates. However, fossils of ferns have been found in places with
cold climates where it often snows today. What can we conclude about the places
where the fossils of ferns have been found?
A. Ferns used to live in cold climates.
B. These places once had a warmer climate.
C. Someone tried to grow ferns in cold climates.
D. These places once had a colder climate.
Answers
Answer:
B. These places once had a warmer climate.
Explanation:
They're fossils meaning they're extremely old therefore the climate they once grew in was suitable for its needs until the climate changed causing them to die.
Why do grasshoppers blend with the grass or bush?
Answers
A 1-year-old underwent hypospadias repair yesterday; he has a urethral catheter in place and an IV. Which rationale is appropriate for administering propantheline on an as-needed basis
Answers
Administering propantheline on an as-needed basis to a 1-year-old who underwent hypospadias repair with a urethral catheter and an IV can be appropriate to help manage postoperative pain and discomfort.
Propantheline is an anticholinergic medication that can help relax smooth muscles and reduce spasms in the urinary tract, potentially alleviating discomfort associated with the catheter and surgical procedure.
Hypospadias repair is a surgical procedure to correct a congenital condition where the opening of the urethra is located on the underside of the instead of at the tip. Following the surgery, it is common for the patient, especially young children, to experience occluded IV discomfort or pain, particularly in relation to the presence of a urethral catheter.
Administering propantheline on an as-needed basis allows healthcare providers to tailor the medication administration to the patient's specific needs. If the patient experiences pain or discomfort related to the urethral catheter, propantheline can be given to help alleviate these symptoms. The healthcare team will assess the patient's condition and administer propantheline when deemed necessary, ensuring the patient's comfort and promoting a smooth recovery from hypospadias repair.
Learn more about occluded IV here
https://brainly.com/question/31194775
#SPJ11
Q. what will happen to a plant if its xylem is removed ?
Q. In which chamber of heart is oxygenated and deoxygenated blood found ?
Pls mate ans fast, hurry up
Answers
➜ The xylem tissue transports water and minerals from the soil to the leaves of a plant for photosynthesis. If xylem is removed, upward movement of water will stop leading to wilting of leaves and ultimately causes death of that plant.
➜ Oxygenated blood ⇢ It is found in left auricle and left ventricle.
Deoxygenated blood ⇢ It is found in right auricle and right ventricle.
How does the shape of vomerine teeth help it preform its function?(holding prey) This question is about frogs in case there is any confusion
Answers
Answer:
The shape in V of the vomerine teeth is useful to hook the prey and hold it until the frog can swallow it.
Explanation:
In frogs, we can distinguish maxillary teeth, premaxillary teeth, and Vomerine teeth.
Vomerine teeth are projections of the vomer bone, located in the anterior part of the paladar and between the internal nares.
Vomerine teeth are specialized structures that help frogs catch and hold their prey. They are not involved in chewing or killing (frogs swallow the entire prey alive), just holding the creature before swallowing it.
These projections are covered by soft tissue. When the frog catches the prey, presses the tongue against the roof of your mouth. The vomerine teeth hook the prey and prevent it from slipping or wandering away.
The shape in V of the vomerine teeth is useful to hook the prey and hold it until the frog can swallow it.
Which evolutionary forces a. cause an increase in genetic variation both within and between populations? b. cause a decrease in genetic variation both within and between populations? c. cause an increase in genetic variation within populations but cause a decrease in genetic variation between populations?
Answers
These evolutionary forces interact to shape the genetic variation within and betwen populations, which in turn affects the evolution of species over time.
The evolutionary forces that cause an increase in genetic variation both within and between populations are mutation, gene flow, and recombination. Mutation is a spontaneous change in DNA sequence that creates new alleles.
Gene flow is the movement of genes between populations through migration or interbreeding, which introduces new alleles into a population. Recombination occurs during sexual reproduction when genes from two parents are combined, creating new combinations of alleles.
The evolutionary forces that cause a decrease in genetic variation both within and between populations are genetic drift and natural selection. Genetic drift is the random fluctuation of allele frequencies in small populations, leading to the loss of genetic diversity. Natural selection eliminates alleles that are less fit for survival and reproduction, reducing genetic variation over time.
The evolutionary force that causes an increase in genetic variation within populations but causes a decrease in genetic variation between populations is genetic differentiation. Genetic differentiation occurs when different populations become genetically isolated from each other, leading to the accumulation of unique alleles in each population.
However, this process can also lead to a reduction in gene flow between populations, resulting in a decrease in genetic variation between populations.
Learn more about genetic variation brainly.com/question/848479
#SPJ11
what is the relationship between transpiration and stomata
Answers
Answer:
Stomata are pores in the leaf that allow gas exchange where water vapor leaves the plant and carbon dioxide enters. Special cells called guard cells control each pore's opening or closing. When stomata are open, transpiration rates increase; when they are closed, transpiration rates decrease.
Explanation:
Two scientists do not agree on which type of grocery bag is better for the environment. The Outcome of their disagreement is most likely to be:
Answer my question , ty .
Answers
Answer:
answer is D
Explanation:
A dwarf planet is a?
Answers
Answer:
A dwarf planet is a planetary-mass object. It must be in orbit around the sun (which means it cannot be a moon). It does not dominate its location in space and is not a satellite.
Explanation:
Answer:
a planet that has not "cleared the neighborhood" which means it could not have a moon, nor could it be a moon itself
Explanation:
the study of the distribution of plants and animals, the diverse spatial patterns they create, and the physical and biological processes that produce earth's species richness is called
Answers
The study of the distribution of plants and animals, the diverse spatial patterns they create, and the physical and biological processes that produce earth's species richness is called Biogeography.
Species are the lowermost level of classification in the hierarchy of classification of organisms. It consists of similar type of organisms that occupy the same habitat and require same resources. The most important criteria to be called as the same species is the ability to breed among themselves and produce an offspring similar to them.
Biogeography enables to study the distribution as well as the reason for distribution of the organisms on different parts of the earth. There are three main fields of biogeography. They are: 1) historical, 2) ecological, and 3) conservation.
To know more about biogeography, here
brainly.com/question/14917759
#SPJ4