which best summarizes the main movement of the glenohumeral joint that occur with contraction of the deltoid?
Answers
Flexion, abduction, medial rotation, and lateral rotation best describe the main glenohumeral joint movements that occur with deltoid contraction.
The glenohumeral joint is a diarthrodial, multiaxial joint that is structurally a ball-and-socket joint. The glenohumeral articulation is the major articulation of a shoulder girdle, involving the humeral head and the glenoid cavity of the scapula. Minor articulations of a sternoclavicular (SC), acromioclavicular (AC), and scapulothoracic joints are also included. The glenohumeral joint is the human body's most mobile joint. Static and dynamic stabilizing structures allow for extreme degrees of motion throughout multiple planes of the body, putting the joint at risk of instability.
The glenohumeral joint is a complex, dynamic articulation between the glenoid of the scapula as well as the proximal humerus. The glenoid cavity (or fossa) of a scapula is specifically contacted by the head of the humerus.
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Related Questions
The most recent group of Homo erectus fossils ever found were recovered from Java, Indonesia and date to a range of 50kya to 25kya, making them contemporaneous with modern Homo sapiens elsewhere in the Old World. These fossils are referred to as ____________ _____________.
Answers
The most recent group of Homo erectus fossils ever found from Java, Indonesia, and dated to a range of 50kya to 25kya making them contemporaneous with modern Homo sapiens elsewhere in the Old World. These fossils are referred to as "Ngandong Homo erectus" or "Java Man."
The Ngandong Homo erectus fossils are significant because they suggest that this hominin species survived much longer than previously thought and may have even overlapped with early Homo sapiens in the region.
Homo erectus is an extinct hominin species that lived in Africa and parts of Asia from around 1.9 million to about 100,000 years ago. Java Man, also known as Homo erectus erectus, is a subspecies of Homo erectus that lived in Java, Indonesia, between about 1.3 million and 50,000 years ago.
The Ngandong Homo erectus, as you mentioned in your question, is a group of fossils found in Ngandong, on the eastern side of Java Island. These fossils were first discovered in the 1930s and were originally estimated to be about 100,000 to 200,000 years old.
However, more recent dating techniques suggest that the Ngandong Homo erectus fossils are much younger than previously thought, with an estimated age range of 50,000 to 25,000 years.
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Where would you not find a cholinergic nicotinic receptor.
Answers
Answer:
You would not find a cholinergic nicotinic receptor on parasympathetic target organs
Explanation:
there are five species of beetles. species a and b have red colored wings, whereas species c and d have pale wings and species e lacks wings completely. which piece of evidence would best support the hypothesis that red wings are a synapomorphy?
Answers
The piece of evidence that would best support the hypothesis that red wings are a synapomorphy (a shared derived trait) would be if species a and b are more closely related to each other than to species c, d, or e.
In order to establish a synapomorphy, it is necessary to demonstrate that the trait (red wings in this case) is shared by a group of organisms (species a and b) and is derived from a common ancestor. If species a and b are more closely related to each other than to the other species (c, d, and e), and they both possess the trait of red wings, it suggests that the trait originated in their common ancestor and has been passed down to them.
This scenario would provide the strongest evidence for red wings being a synapomorphy, as it indicates that the trait is a shared derived characteristic that arose in a common ancestor and has been retained in the descendant species.
It is important to note that additional evidence, such as genetic data or a phylogenetic analysis, would further support the hypothesis of red wings being a synapomorphy by confirming the evolutionary relationships between these beetle species and providing more comprehensive insights into their shared ancestry.
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explain how machines can be useful if the output work is always less than the input work.
Answers
Answer:
If the output work makes the job easier in any way.
Explanation:
HEEELLPP PLSSSSSS <\3 (look at the picture) ar araraarrararaeaar ar ar ar ar ar ar ar ar ar ar ar arrrr ming jjnibgmnbh -FreddyfazNuts
Answers
Answer:
c:3 d:16 e:12 m:8 h:13 p:4
Answer:
</3 sorry i found this too late
Explanation:
hope you are doing well in science :)
Which of the following factor is associated with aquatic habitat (A) Temperature (B) light
(c) intensity (D) Gravel (E) sound
Answers
Answer: light
Explanation:most probably aquatic plants are located n areawhere light intensity can reach to photosynthesise
why are the larval stages of silk moth and honey bees voracious ? please fast answer me
Answers
Answer:
Since that stage is the stage that most of their growth occurs and nutrition is important for their growth. Thus they eat continuously to sustain the growth pattern.
Name one of the main physical features of Australia and describe where it is located in the continent?
Answers
Does every scientific method begin with an observation?explain
Answers
Answer:
It is not a rule that every scientific method should start with observing, sometimes you can predict the result of an experiment then observe if your prediction is right or wrong.
Explanation:
which term best describes how the earth's atmosphere is heated?
Answers
Answer:The sun heats earth's atmosphere unevenly. this causes convection currents to move in large circles in the atmosphere.
Explanation:
only answer if you’re 100% positive on the answer….
which biome is defined as an area or region wheee more water moves from the land to the atmosphere than falls to the ground as precipitation?
a. tundra
b. desert
c. coniferous forest
d. rainforest
Answers
Answer:
B
Explaination:
What is the BEST definition of a desert biome?
-An area or region where more water moves from the land to the atmosphere than falls to the ground as precipitation.
The answer is:
DESERT
The primary source of energy for most organisms are
Answers
Answer: The Sun
3.1 The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.
Explanation:
Answer:
The main energy source for life is the Sun
Explanation:
All of the following are examples of fixed macrophages EXCEPT:
a. Kupffer Cells
b. Alveolar Macrophages
c. Microglia
d. All of these are examples of fixed macrophages.
Answers
Answer:
Yes, all of the following are examples of fixed macrophages.
Explanation:
Fixed macrophages are those that stay fixed in a particular organ.
Kupffer cells stay in the liver.
Alveolar macrophages in the alveolar.
Microglia in the central nervous system.
All the macrophages have the duty to engulf any foreign particle that enters the body. They are the primary defence of the body.
All of these are examples of fixed macrophages.Kupffer Cells,Alveolar Macrophages,Microglia.
The innate immune system's macrophages are a kind of white blood cell that engulfs and digests pathogens including cancer cells, bacteria, cellular debris, and foreign objects that lack proteins that are particular to healthy body cells. Phagocytosis is the procedure, and it serves to protect the body from damage and infection.These larges may be found in almost all tissues, where they use amoeboid mobility to search for possible pathogens. The mononuclear phagocyte system is made up of cells that come in a variety of shapes (and go by many names) throughout the body, including histiocytes, Kupffer cells, alveolar macrophages, microglia, and others.
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According to the Red Queen Hypothesis, predators and prey evolve together to gain small advantages against one another. Give an example of a prey and predator. How might they change slightly over time together? Why?
Answers
An example of a prey and predator that co-evolve due to the Red Queen Hypothesis is the cheetah (predator) and the impala (prey) in the African savannah. The impalas evolve to become faster and more agile, enabling them to outrun cheetahs.
The impalas develop longer legs, allowing for increased stride length and higher running speeds, as well as enhanced agility through improved coordination and quick directional changes. On the other hand, cheetahs develop longer, more muscular bodies to improve their acceleration and top speed. They also possess sharper claws for better grip during high-speed chases.
These changes occur because faster impalas have a higher likelihood of escaping predation, while faster cheetahs have a better chance of catching their prey. Thus, natural selection favors individuals within each species that possess advantageous traits, leading to the co-evolutionary chase between the predator and prey.
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What does Mufasa mean by the circle of life? Make a diagram that shows the circle of life. Represent it this way: sun –> producer –> primary consumer –> secondary consumer-> decomposer
PLEASE HELP
Answers
Answer:
Sun --> carrot --> rabbit --> wolf --> earthworm
2) Eggs, which are indicators of fecundity, were counted from both genotypes of lizard in the population. Based on the data, the relative fitness of each genotype were determined: w_BB = 1, w_Bb = 1 , w_bb = 0.667 BB Bb Given these data, what can you say about how well blue belly lizards survive and reproduce compared to orange belly lizards in this environment? Circle one answer. Heterozygote lizards have the highest survival rate. Blue belly lizards have higher fitness than orange belly lizards in this population. Orange belly lizards have a higher fitness than blue belly lizards in this population. Belly color doesn't influence survival rate or fitness in these lizards.
Answers
Based on the data provided, we can say that blue-belly lizards have higher fitness than orange-belly lizards in this population.
The relative fitness of each genotype (BB, Bb, and bb) is given, and it shows that the wBB = 1 and wBb = 1, indicating that the homozygous individuals have higher fitness than the heterozygous individuals. On the other hand, the relative fitness of bb is 0.667, which is lower than the fitness of BB and Bb. Therefore, we can conclude that the blue-belly lizards have higher fitness than the orange-belly lizards in this population.
Fitness is an organism's genetic contribution to the next generation, and it is measured as the number of offspring that survive to reproduce. Fecundity refers to an organism's capacity to produce offspring. It is a fundamental demographic process that impacts population growth and is therefore critical to ecological and evolutionary theory.
According to the given data, Blue belly lizards have higher fitness than orange-belly lizards in this population. This is what can be said about how well blue-belly lizards survive and reproduce compared to orange-belly lizards in this environment.
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Which of these species would be most in danger of becoming extinct if one of their food sources became unavailable?
Answers
Answer:
Due to their being no options (possibly just an incomplete question), I will just give an answer. So for panda bears, if their food sources became unavailable, they would most likely be in danger of becoming extinct.
But one thing is, pandas do have the ability to survive with bamboo.
But since bamboo comprises 99 percent of their food, although they also consume other plants and even meat, I highly doubt they could (whose make the remaining 1 percent ).
Because the gene T1R1 mutated some 4 million years ago, causing them to lose the ability to taste umami, giant pandas have come to rely significantly on bamboo (which is what makes meat tasty for omnivores and carnivores). The availability of bamboo trunks at the time coincided with their purported food source becoming increasingly limited, thus pandas became used to them and began to rely significantly on them, as they do now.
Thank you,
Eddie
what are the four major blood vessels in the heart
Answers
The four major blood vessels in the heart are:
1. Aorta: The aorta is the largest artery in the body and carries oxygenated blood from the left ventricle of the heart to the rest of the body. It distributes oxygen-rich blood to various organs and tissues.
2. Pulmonary Arteries: The pulmonary arteries carry deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation. There are two pulmonary arteries, one for each lung.
3. Superior Vena Cava: The superior vena cava is a large vein that carries deoxygenated blood from the upper body and arms back to the right atrium of the heart. It collects blood from the head, neck, upper limbs, and upper chest.
4. Inferior Vena Cava: The inferior vena cava is another major vein that carries deoxygenated blood from the lower body and legs back to the right atrium of the heart. It collects blood from the abdomen, pelvis, and lower limbs.
These four major blood vessels play crucial roles in the circulation of blood within the heart and throughout the body, ensuring the delivery of oxygen and nutrients to various tissues and the removal of waste products.
About what percentage of the land area of South America has a growing season of over 240 days?
Answers
Answer:
75%
Explanation:
Answer:
75% of the land area in South America has a growing season of over 240 days.
Explanation:
Moving water up a plant from the roots to the leaves occurs by a combination of different processes (steps). The main process that draws water up the stem is..
a) osmosis
b) transpiration
c) diffusion
d) capillary action
Answers
Transpiration is ultimately the main driver of water movement in xylem. The cohesion-tension model works like this: Transpiration (evaporation) occurs because stomata are open to allow gas exchange for photosynthesis.
What does a cross-section of the thymus look like and why?
Answers
A cross-section of the thymus looks like a bilobed organ composed of numerous small, tightly-packed lobules separated by thin septa, with an outer cortex and inner medulla.
The thymus is a primary lymphoid organ found in the upper chest, crucial for the development and maturation of T-lymphocytes.
The outer cortex is densely packed with immature T-cells (thymocytes), while the inner medulla contains mature T-cells and specialized epithelial cells, which play a role in the elimination of self-reactive T-cells to prevent autoimmune reactions.
Summary: In a thymus cross-section, you will observe a bilobed structure with lobules, an outer cortex containing immature T-cells, and an inner medulla housing mature T-cells and specialized epithelial cells, essential for T-cell development and preventing autoimmune reactions.
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describe what is happening to the population of bacteria
Answers
Answer:
Bacterial populations employ native defenses against antibiotics that are analogous to the activity of protonophores. These mechanisms disrupt membrane electrochemical gradients that enable bacterial populations to establish subpopulations of drug-tolerant persisters
Explanation:
When we cultured in bacteria by adding growth promoting factors for rapid growth, what happened in this time. At that time bacteria growth/size are increase or both .
if a rock has a volume of 2cm3 and a mass of 12g what is its density
Answers
Answer:
If a rock has a volume of 2 cm³ and a mass of 12 gr, its density will be 6 gr/cm³.
Explanation:
Density is a parameter used in chemistry and physics, which relates the mass and volume of a solid or compound, establishing the amount of volume that occupies a given mass.
If we observe the density formula, we can see that the greater the mass, the greater the density, while the volume is inversely proportional, so the lower the volume, the greater the density. This formula is:
ρ = m/V
Therefore, according to the mass and volume of the rock
ρ = 12 grs / 2 cm³
ρ = 6 grs/cm³
Being the density of the rock equal to 6 gr/cm³.
Like the atmosphere, the
transports and distributes heat on Earth, helping to regulate climate.
-Ocean
-mountains
-beaches
Answers
Answer:
Ocean
Explanation:
Like the atmosphere, the ocean transports and distributes heat on Earth, helping to regulate climate.
The sea is divided geographically into various areas such that each of the area is known as ocean.
Mountains alter wind flow besides creating a rain shadow effect.
Beaches protect people from the high winds and waves of powerful storms.
Which of the three components that plants need do we provide?
Answers
Answer:
Plants, like all living organisms, have basic needs: a source of nutrition (food), water, space in which to live, air, and optimal temperatures in order to grow and reproduce. For most plants, these needs are summarized as light, air, water, and nutrients (known by the acronym LAWN).
What is the point of inserting needles into incorrect places?
A.
it controls for whether the insertion point influences the specific body part
B. O it controls for whether the scientist knows which patient gets the treatment
c. O it controls for whether the person can feel the needle
D.O it controls for whether needles are necessary
Answers
Answer:
Explanation:
D
how many strands of dna are copied by mrna to move genetic information from the nucleus to the cytoplasm?
Answers
Answer: One strand
Explanation: One strand of the gene's DNA is copied into RNA. In eukaryotes, the RNA transcript must undergo additional processing steps in order to become a mature messenger RNA (mRNA).
Answer:
One
Explanation:
If it wasn't for the Sun and the ___ cycle, our current atmosphere might not exist, and weather on Earth would be minimal.
A. Water
B. Carbon
C. Oxygen
D. Nitrogen
Please give an explanation
Answers
Answer:
B. Carbon cycle
Explanation:
The operation of the carbon cycle is one of the most important in this regard as it ultimately controls levels of oxygen and carbon dioxide in the atmosphere. The carbon cycle is responsive to changes in climate and oceanography and is coupled to nutrients cycles.
What is the probability of getting the same numbers on 3 dice when they are thrown simultaneously?
Answers
Answer:
So, assuming the dice are 'fair' (that each of the six numbers has a probability of 1/6 of showing up on each of the dice), there is a probability of 1/36 that all three dice will show the same number.
Explanation:
FILL IN THE BLANK. the chemical bond joining adjacent amino acids is called a(n) _____________ bond.
Answers
The chemical bond joining adjacent amino acids is called a peptide bond.
A peptide bond is a type of covalent bond that forms between the carboxyl group (-COOH) of one amino acid and the amino group (-NH2) of another amino acid.
It occurs during a process called dehydration synthesis or condensation reaction. In this reaction, a water molecule is eliminated, and the amino acids are joined together, resulting in the formation of a peptide bond.
The formation of a peptide bond involves the removal of a hydroxyl group (-OH) from the carboxyl group of one amino acid and a hydrogen atom from the amino group of another amino acid.
The remaining oxygen from the carboxyl group and the remaining nitrogen from the amino group then bond together, forming a peptide bond.
Peptide bonds are essential in the formation of proteins, which are chains of amino acids linked by peptide bonds.
The specific sequence and arrangement of amino acids in a protein determine its unique structure and function.
The peptide bonds provide stability to the protein structure, as they are relatively strong and resistant to breaking under normal physiological conditions.
The process of breaking a peptide bond is called hydrolysis, which involves the addition of a water molecule to break the bond and release the individual amino acids.
Hydrolysis is catalyzed by enzymes and is important for protein digestion and metabolism.
In summary, the peptide bond is a crucial chemical bond that connects amino acids and allows for the formation of proteins, which play fundamental roles in various biological processes.
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