(50 points)The picture is a cross section of a bone.
A cross sectional view of bone. X points to the inner layer. Y points to the middle layer.
Which structures of the bone are indicated by the arrows?
A. X-compact; Y-spongy
B. X-spongy; Y-marrow
C. X-spongy; Y-compact
D. X-marrow; Y-spongy
Answers
Answer:
it is b X-spongy; Y-marrow, i am doing the test, and the other person is correct.
Explanation:
The arrows point to the bone formations called X-marrow and Y-spongy. So, the correct option is D.
What are Compact and spongy bones?Osteons or haversian systems are tightly packed together to form compact bone. The osteon is made up of concentric circles (lamellae) of matrix surrounding a central canal known as the osteonic (haversian) canal. The bone cells (osteocytes), which are situated between both the rings of matrix, are found in regions known as lacunae.
The bone marrow stores fat and produces blood cells. Spongy bone, also known as cancellous bone, is composed of tiny, needle-like bone fragments organized in a honeycomb pattern. Bones that are more flexible can still be strong while weighing less. In the given example, the arrows indicate to a X-marrow and Y-spongy bone structures.
Therefore, the correct option is D.
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Related Questions
do potential energy increase as they get closer?
Answers
Answer:
yes they increase the rate that the are working normally
Humans, lions and cows would all be examples of which of the following?
Question 8 options:
biotroph
homeotroph
autotroph
heterotroph
Answers
Answer:
Heterotroph
Explanation:
Humans, lions, and cows, as well as all other organisms that gather energy by consuming other organisms can be considered heterotrophs!
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Based on the article, which statement accurately describes garlic mustard and trillium in the forest? 1.)Trillium and garlic mustard are both native plants. 2.)Trillium is a native plant, and garlic mustard is an invasive plant. 3.)Trillium is an invasive plant, and garlic mustard is a native plant. 4.)Trillium and garlic mustard are both invasive plants.
Answers
Answer:
Its 2 or B
Explanation:
I just took the Assignment on edge
Answer:
It's............B!Explanation:
In case no one believes the person and I got it right!
Describe the fungi reproduction process.
Please I really need this answer ASAP.
Answers
Fungi reproduce asexually by fragmentation, budding, or producing spores. Fragments of hyphae can grow new colonies. Mycelial fragmentation occurs when a fungal mycelium separates into pieces with each component growing into a separate mycelium. There are many types of asexual spores.
Answer:
hello!
Explanation:
Following a period of intensive growth, fungi enter a reproductive phase by forming and releasing vast quantities of spores. Spores are usually single cells produced by fragmentation of the mycelium or within specialized structures (sporangia, gametangia, sporophores, etc.). Spores may be produced either directly by asexual methods or indirectly by sexual reproduction. Sexual reproduction in fungi, as in other living organisms, involves the fusion of two nuclei that are brought together when two sex cells (gametes) unite. Asexual reproduction, which is simpler and more direct, may be accomplished by various methods.
Asexual reproduction
Typically in asexual reproduction, a single individual gives rise to a genetic duplicate of the progenitor without a genetic contribution from another individual. Perhaps the simplest method of reproduction of fungi is by fragmentation of the thallus, the body of a fungus. Some yeasts, which are single-celled fungi, reproduce by simple cell division, or fission, in which one cell undergoes nuclear division and splits into two daughter cells; after some growth, these cells divide, and eventually a population of cells forms. In filamentous fungi the mycelium may fragment into a number of segments, each of which is capable of growing into a new individual. In the laboratory, fungi are commonly propagated on a layer of solid nutrient agar inoculated either with spores or with fragments of mycelium.
Budding, which is another method of asexual reproduction, occurs in most yeasts and in some filamentous fungi. In this process, a bud develops on the surface of either the yeast cell or the hypha, with the cytoplasm of the bud being continuous with that of the parent cell. The nucleus of the parent cell then divides; one of the daughter nuclei migrates into the bud, and the other remains in the parent cell. The parent cell is capable of producing many buds over its surface by continuous synthesis of cytoplasm and repeated nuclear divisions. After a bud develops to a certain point and even before it is severed from the parent cell, it is itself capable of budding by the same process. In this way, a chain of cells may be produced. Eventually, the individual buds pinch off the parent cell and become individual yeast cells. Buds that are pinched off a hypha of a filamentous fungus behave as spores; that is, they germinate, each giving rise to a structure called a germ tube, which develops into a new hypha.
Although fragmentation, fission, and budding are methods of asexual reproduction in a number of fungi, the majority reproduce asexually by the formation of spores. Spores that are produced asexually are often termed mitospores, and such spores are produced in a variety of ways.
Describe the two processes necessary for sediments to lithify into sedimentary rock.
Answers
Sediments are squeezed together by the weight of overlying sediments on top of them. This is called compaction. Cemented, non-organic sediments become clastic rocks. If organic material is included, they are bioclastic rocks.
(2)
Fluids fill in the spaces between the loose particles of sediment and crystallize to create a rock by cementation.
Answer:
Sedimentary Rock Formation
Two important steps are needed for sediments to lithify. Sediments are squeezed together by the weight of overlying sediments on top of them. ... Cemented, non-organic sediments become clastic rocks. If organic material is included, they are bioclastic rocks.
The fact that whales have a pelvis is which type of evolutionary evidence?
Answers
Answer:
Anatomical Evidence
Explanation:
The pelvic bones in whales are a good example of evolutionary anatomical evidence shown by vestigial evolution where whales evolved from four-legged land mammals and secondarily lost their hind legs.
what is a probable source of earth's magnetic field
a. earths iron core
b. the sun
c. the moon
d. earths tides
Answers
hope this helps :)
it makes sense that a huge thing of metal is what causes it
Reaction: C6H120, + 6
A -> 6
B + 6 H2O + energy
What molecules does letter B represent in the reaction above?
02
O CO2
ОАТР
O H2O
Answers
The reaction of cellular respiration involves the use of the glucose molecule in presence of oxygen to produce energy and carbon dioxide. Thus, option B is correct, as molecule B is carbon dioxide.
What is cellular respiration?Cellular respiration is a chemical method that involves the inhaled oxygen and use of the food molecules to release energy along with the water and carbon dioxide molecules.
Cellular respiration can be depicted by the reaction:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy
Therefore, molecule B is carbon dioxide.
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is glucose completely broken down in anaerobic respiration (animal)
Answers
Answer:
Glucose is not completely broken down
Explanation:
So much less energy is released than during aerobic respiration. There is a build-up of lactic acid in the muscles during vigorous exercise.
3. Why does the order of amino acids affect the structure of a protein?
Answers
Answer:
The order of amino acids determines protein shape, since the chemical properties of each amino acid are forces that give rise to intermolecular interactions to begin to create secondary structures
Explanation:
Question 5 of 10 Match each measurement tool with what it measures. Hygrometer ? Humidity Wind sock ? Air Pressure Barometer ? Wind speed and direction Anemometer ? Wind speed
Answers
Answer:
hygrometer measures humidity
barometer measures air pressure
wind sock measures wind speed and Direction
anemometer measures wind speed
The terms with their respective measurable device can be matched as:
1. Hygrometer is a type of device used to measure the content of water vapor or moisture in air or soil.
2. Barometer is a scientific instrument that is used for the measurement of air pressure. Temperature, wind patterns, and the earth's rotation affect the air pressure.
3. Windsock is a type of conical tube that is used to understand the direction of the wind. Windsocks are easily observed at airports and beaches.
4. Anemometer is a type of device, which consists of three spherical plates. The plates are used to measure the speed of the wind.
Thus, the quantities like air, moisture, and speed can be calculated by various instruments.
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What theory’s/ideas challenge natural selection? In other words, what disproves natural selection?
Answers
Answer:
Natural selection needs some starting material, and that starting material is heritable variation. For natural selection to act on a feature, there must already be variation (differences among individuals) for that feature. Also, the differences have to be heritable, determined by the organisms' genes.
What is natural selection?
-compare natural selection to evolution
Answers
Answer:
its when certain organisms are better suited for certain enviornments or they have genes that allow them to live in a enviornment without struggle
Explanation:
Answer: Natural selection is where the strongest survives. And the weak dies.
Natural selection is where strongest survives, evolution is where the most liked feature survives. (Example, NS, finches in the Galapagos. Ex of Evo, birds with preferences of colors for their nest)
Explanation:
The exchange of carbon dioxide and oxygen in the alveoli of the lungs is an example of what?
C)passive transport
Answers
Answer:
Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs.
What is the charge of the outside of the DNA molecule?
Answers
Answer:
It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
Explanation:
Which statement accurately describes how species change through natural selection?Immersive Reader
Organisms that survive will die off.
Changes to the environment cause organisms to change.
Organisms who can survive will reproduce.
Answers
Answer:
organism that will die off
Explanation:
because
Suppose that a patient is diagnosed with a new disease caused by the buildup of waste material in the body's cells.
Which organelle is most likely malfunctioning in the patient's cells?
O Golgi apparatus
O lysosome
o ribosome
O endoplasmic reticulum
Answers
how does an amoeba cell function differently from a human nerve cell?
Answers
Answer:
Answer. It means amoeba has single cell,unicellular. ... Amoeba will functions every thing with the help of that single cell. Humans have many cells which functions multiple functions ( nerve cells,muscle cells,brain cells).
Explanation:
Answer:
Hi E 16
Amoeba are unicellular organisms where as humans are multi cellular organisms
It means amoeba has single cell,unicellular. we has multi cells means more than 2 cells.
Amoeba will functions every thing with the help of that single cell.
Humans have many cells which functions multiple functions (nerve cells,muscle cells, brain cells).
Shoot the Golgi Apparatus. Fill in the blanks: Golgi receives ANSWER containing ANSWER that were sent by the ANSWER Then it modifies ANSWER and send them where they need to go.
Answers
Answer:
Golgi receives a vesicle containing newly synthesized proteins that were sent by the endoplasmatic reticulum. Then it modifies the proteins and sends them where they need to go.
Explanation:
Protein synthesis is initiated in the cytoplasm when mRNA meets a free ribosome, which is the primary structure for protein synthesis. They read the mRNA code and add the correct amino acid using transference RNA to build the protein. The synthesizing protein is driven to the rough endoplasmic reticulum and translocated to the lumen. Once there, the protein suffers a few modifications, one of them is folding to become functional. Once membrane proteins are folded in the interior of the endoplasmic reticulum, they are packaged into vesicles and sent to the Golgi complex, where it occurs the final association of carbohydrates with proteins. The Golgi complex sends proteins to their different destinies. Proteins destined to a certain place are packaged all together in the same vesicle and sent to the target organ. In the case of membrane proteins, they are packaged in vesicles and sent to the cell membrane where they get incrusted.
What is the primary role of decomposers in an ecosystem
Answers
Answer:
Decomposers feed on dead things: dead plant materials such as leaf litter and wood, animal carcasses, and feces. They perform a valuable service as Earth's cleanup crew. Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere.
Explanation:
Hehe hope it helps
b. What food molecules are created?
Answers
Answer:
Instead, let's start applying what we learned so far by looking at the most common groups of molecules in food: carbohydrates, proteins and fats. These molecules are also called 'macronutrients' and are essential for us from a nutritional point of view.
1. During mitosis, a single cell divides to produce two daughter cells. What must happen in the original cell so that each of the daughter cells has a complete set of chromosomes?
Answers
Mitosis is the cell division which occurs in all types of cells in the body. This results into formation of daughter cells with same set of genetic material as the parent cell.
What is Mitosis?
Mitosis is a type of cell division which occurs in all types of cells. This division is also called as Equational division as the genetic content remains constant from the parents to offspring. This process results into formation of two daughter cells which are similar to the parent cell.
In mitosis, a cell divides to form two identical daughter cells with same genetic material. It is important that the daughter cells have a copy of every chromosome in their nucleuc, so the process involves copying of the chromosomes first and then carefully separating the chromosomes copies to give each new cell a full set of genetic material.
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What is the structure of DNA?
Triple Helix
Double stringed
Double Helix
Answers
Answer:
Double Helix
Explanation:
Triple-stranded DNA is a DNA structure in which three oligonucleotides wind around each other and form a triple helix. In triple-stranded DNA, the third strand binds to a B-form DNA (via Watson–Crick base-pairing) double helix
A species has a better chance of surviving if it has greater variation in its
A
mutations.
B
golgi bodies.
C
mitochondria.
D
genes.
Answers
Answer:
The answer is D.
Explanation:
Answer:
d
Explanation:
can someone pls help 6th grade science
Answers
Answer: stove-pot=conduction, pot-egg=convection
What conditions are needed to create a sound wave?
Answers
Answer:
The waves must be coherent and monochromatic
On what day did the Paramecium aurelia population reach the carrying capacity of the environment? How do you know?
Answers
4. One coach of an Olympic rowing team makes his athletes warm up by doing 30 minutes of
stretching and jogging in place before practicing each day. Another coach suggests that
resting before practicing will result in better performance by her team. They decide to
conduct an experiment to see which practice is correct. One team rests before practice, the
other team warms up for thirty minutes, and then each team records the time that it takes
them to row a specific distance, Identify the dependent variable in this experiment. [1]
Illuminate Education, Inc.
Answers
Answer: The team that warms up will have there muscles warm and will do a better job during rowing and after theu are done they should stretch again.
Explanation:
The team warms up for thirty minutes and has better results in Olympics.
Why stretching is good before any strenuous activity?Stretching prior to exercise allows the muscles to loosen up and become resistant to the impact they are about to undergo, thereby reducing the chance of injury.
Your muscles and tendons will loosen as a result of proper stretching. During your workout, this will improve your flexibility and range of motion. Performance has improved. Stretching before a workout improves blood flow, suppleness, and range of motion, which boosts overall performance.
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( please, do not comment if you do not know the answer, I will give Brianlist ) Please complete the following:
1. You and Tim, who is larger than you are outside with a wagon. Tim (the bigger person) gets in the wagon and you (the smaller one) pull it. As you pull
it, you accelerate until you reach a comfortable velocity. Then you stop and switch places with Tim. Tim now pulls you in the wagon, accelerating
from a stop to a comfortable velocity. Now, Tim may be bigger than you, but you have been working out and are just as strong as Tim, so the force
that Tim uses to pull the wagon is the same force that you used. You both pull with the exact same amount of force. Who was riding in the wagon
when it had the greatest acceleration during start up? Why? Use Newton's second law to explain.
2. Now Sara comes along, and she is the exact same size as you. However, she is even stronger than you! When she pulls you in the wagon, she pulls
with a greater force than when you pull her. Now who is in the wagon when it has the greatest acceleration? Explain, using Newton's second law.
Answers
Answer:
2. Sarah
Explanation:
because she is stronger, she is able to pull faster and easier because of the amount of weight she can carry vs the amount of weight you can carry. Although you are the same height, she has more muscle.
Energy conversion within an animal cell would be severely limited by removal of the cell's --
F .mitochondria
G .chloroplasts
H .plastids
J .lysosomes
Answers
because the most important energy reactions of an eukaryote cell take place in mitochondria. oxygen and energetic molecules take part in reactions which catalyze by mitochondrial enzymes and make energy for the cell. Hope this helps
Answer:
The answer is F.
Explanation:
The reason why is the Mitochondria converts glucose to energy. If it were to be removed, protein production would stop, normal functions would cease, homeostasis would be off balance. also because activities going towards the Nucleus. No control center, no protein production since ribosomes are made there. Thus, destroying that cell completely.