Answer: The correct answer to the question is option C
CELLS MUST FIRST ESCAPE THE BASEMENT MEMBRANE OF TISSUES.
Explanation: For any tumour cell to be able to gain entry into the lymphatic circulation or into the blood,there must first be an escape of the tumour cell from the basement membrane of the tissue it originated from,when the tumor first moves out if the basement membrane,it further moves through the extracellular space and then finds its way to the basement membrane of the vessel.
Spread of the tumour cells from it's point of origin (metastasis) is thought to involve the loss of cell to cell adhesion proteases and collagenases digestion of the basement membrane.
The basement membrane of the vessel can only be penetrated only if and after the basement membrane of the affected organ has been affected/breached.
to test a hypothesis, a scientist could...
a- make observations
b- perform experiments
c- look to the scientific literature to find data
d- all of the above
Answer:
see below
Explanation:
without doubt it is D
Answer:
may be right ans is d
Explanation:
all of above I think because to text hypothesis,a scientist could do all above
Eye color is an example of (20 Points)
translational control.
gene regulation.
transcriptional control.
gene expression.
eye color is an example of Gene expression
If you have a density of 100 kg/L, and a mass of 1000 units, tell me the following:
First what are the mass units?
Answer:
100KL
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Answer:
density = mass/volume = 100 kg/L
the mass = 1000 kg
volume = mass/density = 1000/100 = 10 L
hope this helps you
This long muscle lies obliquely across the anterior thigh.It allows you to sit in a crossed-leg (lotus)position.It flexes the leg at the knee and abducts and laterally rotates the thigh at the hip.
A) Hamstrings
B) Quadriceps femoris
C) Sartorius
D) Gastrocnemius
Answer: it's C
Explanation:
The sartorius muscle is the longest muscle in the human body. It is a long, thin, superficial muscle that runs down the length of the thigh in the anterior compartment. The name Sartorius comes from the Latin word sartor, meaning tailor, and it is sometimes called the tailor's muscle.
Each orientation of chromosomes produces gametes with the same genetic information from each parent.
a) true
b) false
Answer: a) true
Explanation:
The goal of mitosis is to produce daughter cells that are genetically identical to the mother cell, without a single extra or missing chromosome. Meiosis, on the other hand, is only used for one purpose in the human body: the production of gametes or sex cells, i.e. sperm and eggs. The question is oriented to mitosis, in which prior to this cell division, the cell duplicates its DNA so that each daughter cell then inherits the genetic material. That is, the cell originally possesses 23 chromosomes, they duplicate to a total of 46 so that then each daughter cell receives 23.
The metaphase is the second phase of mitosis and meiosis that occurs after prophase where the envelope is lost and microtubules of the achromatic spindle (also called meiotic or mitotic) appear.
During metaphase, the chromosomes align themselves in the middle of the cell and this balanced midline spindle alignment is due to the equal and opposing forces generated by the kinetochore brothers.
Then during metaphase, the chromosomes will line up in the center of the cell to be separated and go each to a different daughter cell. But the moment they're found there, each orientation of chromosomes produces gametes with the same genetic information from each parent. Because because there have been no changes or mutations in the chromosomes, they have duplicated and have the same genetic information.
WHAT İS THE CELL MEMBRANE
Answer:
the semipermeable membrane surrounding the cytoplasm of a cell.
Please give brainliest
Explanation:
The diagram shows a type of lipid.
Which type of lipid is shown?
A.) a saturated phospholipid
B.) a saturated triglyceride
C.) an unsaturated phospholipid
D.)an unsaturated triglyceride
Answer:B
Explanation:
What is NOT a function of the endocrine system? Select one: a. Production of white blood cells b. Influencing fluid absorption c. Assisting with sperm production d. Influencing body’s energy level and metabolism
Answer:
Option a. Production of white blood cells
Explanation:
The endocrine system is the system that involves the organs and glands that produce and secretes the hormones that acts on various other activity to regulate responses or activity.
Major function and examples of endocrine system are :
Aldosterone helps in fluid absorption in kidney
Thyroxine helps in regulating body metabolism and energy
Testosterone is responsible for sperm production is regulated
But, WBC formation is not regulated by hormones.
Thus, the correct answer is: option a. Production of white blood cells
Is aprons preventative or emergency
Answer:
Hey there!
Aprons are preventative. You where an apron while cooking or working in the kitchen, to prevent unclean food or liquids from touching your clothes.
Let me know if this helps :)
Create a sentence explaining how animo acids from proteins
Amino acids are joined together by peptide bonds, in which the amino or NH2 of one amino acid bonds to the carboxyl (acid) or COOH group of another amino acid to form Proteins.
Amino acids are monomers that combine to form polymers called proteins.
One of the most crucial factors in the development of fatigue appears to be a depletion of ATP.
a. True
b. False
Answer:
Option A
True
Explanation:
Adenosine triphosphate (ATP) is the molecule in the cells that carry energy. They help to trap the energy that is obtained during respiration and the breaking down of food, in order to release it to the cells of the living organisms when the need arises.
Once the ATP levels deplete in the body, cellular fatigue begins to occur, as the cells do not have the required energy to perform their necessary functions.
This makes the correct option to be A: True. The depletion of the ATP levels in the body causes fatigue
is the basic unit of life.
organ
o cell
Answer:
Cell!
Explanation:
Which of the following best describe(s) the function of the 5' mRNA cap?
a) Termination of transcription
b) To provide a binding site for poly(A) polymerase
c) It provides a site for ribosome binding in the cytoplasm
d) To protect the transcript from degradation
Answer:
c) It provides a site for ribosome binding in the cytoplasm
d) To protect the transcript from degradation
Explanation:
Transcription is the very first stage of gene expression, which involves the synthesis of a mRNA molecule from a DNA template. The mRNA transcript produced is referred to as a pre-mRNA until it undergoes further processing in the nucleus. This processing makes it matured and ready to be translated (form protein).
The mRNA processing involves three main processes viz: 5' capping, 3' polyadenylation and splicing. The capping of the 5' of the mRNA involves the addition of a 7-methyl guanosine molecule to the 5' of the mRNA molecule. This capping helps protect the mRNA transcript from being degraded by nucleases (digestive enzymes in the nucleus). In addition to this function, the added CAP also provides a recognition site for ribosome to bind to during translation initiation.
What prevents organisms from reproducing an unlimited number of offspring?
The primary reason living organisms cannot produce an unlimited number of offspring is senescence, otherwise known as old age.
Cells of the reproductive organs divide and continually make it possible for organisms to reproduce. As time goes on, the old cell dies and new cells replace them through mitotic or meiotic cell division of young cells that still has the ability to divide.
However, as programmed cell deaths occur with old age, the reproductive cells start losing the ability to divide, and when this happens, the ability for organisms to reproduce becomes limited.
More on reproduction can be found here: https://brainly.com/question/7464705
(science) ill pick brainiest :) Scientists have discovered convection currents inside Earth. Explain how these convection currents move and what layer(s) they occur in.
Answer:
não sei sua pergunta novamente
_______ are the small sacs that are the site of gas exchange in the lungs. In addition to being an airway, the _______ is the location of the human vocal cords. Cilia in cells along the trachea and nasal passages secrete _______ which traps dirt and particles from the air. Air is only approximately 21% oxygen. The majority of air is ______. The medulla oblongata controls the contraction and relaxation of the _______, causing the lungs to inflate and deflate during breathing. Explain the process of breathing. Begin with inhalation and describe the route that the air takes to the lungs, and what happens when the air reaches the lungs. Include in your description the terms: mouth, nose, pharynx, larynx, trachea, bronchi, lungs, alveoli, carbon dioxide, oxygen, and capillaries
1. D
2. C
3. B
4. A
5. Alveoli
6. larynx
7. mucus
8. nitrogen
9. diaphragm
10. Air enters the body through the mouth or nose and passes through the pharynx and larynx. Then it travels down the trachea and branches through the bronchi into the two lungs. In the lungs, small alveoli are the site of gas exchange where carbon dioxide diffuses into the lungs for exhalation, while oxygen from the air diffuses into the capillaries surrounding the alveoli to be pumped throughout the body.
PENNFOSTER.
add me as brainliest hehe <3
Answer:
1. d
2. c
3. b
4. a
5. Alveoli
6. larynx
7. mucus
8. nitrogen
9. diaphragm
10. Air enters the body through the mouth or nose and passes through the pharynx and larynx. Then it travels down the trachea and branches through the bronchi into the two lungs. In the lungs, small alveoli are the site of gas exchange where carbon dioxide diffuses into the lungs for exhalation, while oxygen from the air diffuses into the capillaries surrounding the alveoli to be pumped throughout the body.
Explanation:
Which factor in the Southwestern desert ecosystem is abiotic?
what is transpiration
Answer:
Exhalation of water vapor through the stomata.
Answer:
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flower
"When the body is relying on internal energy reserves to continue meeting its energy demands, it is in the ________ state."
Answer:
Postabsorptive state
Explanation:
This is the state where food has been digested, absorbed, and stored. While in this state, the body relies on the stored glycogen in the body. This state is also known as the "fasting state."
What does absorption mean? A. breakdown of molecules B. enzyme activity on nutrients C. network of chemical reactions that occur in the body D. process of assimilating
Answer:
It is B
Explanation:
Because absorption occurs when the simple nutrient molecules that result from digestion are absorbed into blood or lymph.
Answer:
process of assimilating
Explanation:
I think it is right! I don't know.
Can star positions be used to determine the future
Answer:
Since stars basically move freely through space, we can use their proper motions to predict where they will be in the future. A star can also move toward us or away from us, following what is known as radial motion. The combination of radial motion and proper motion determines a star's true motion relative to us.
Hoped I helped
use what you've learned to match the earths inner layers to their correct descriptions
Answer:
Outer core- is made of liquified metal
Asthenosphere- has a tarry consistency
Inner core- is under great pressure and solid
Lower mantle- is under the asthenosphere
Explanation:
1). Outer core - is made of liquified metal, 2)The asthenosphere - has a tarry consistency, 3). Inner core - is under great pressure and solid, 4). Lower mantle - is under the asthenosphere.
What are the layers of the earth?The four main layers of the Earth are the solid outer crust, the mantle, and the core, which is divided into an outer core and an inner core.
Everything in the crust that we can immediately observe and analyze. The average thickness of the Earth's crust is 40 kilometers, ranging from 3 to 44 miles to 5 to 70 kilometers.
On a global scale, however, that is smaller than the skin of an apple. The mantle is the planet's thickest layer, reaching a depth of 2,890 km. It makes up approximately 84% of the total volume of the Earth.
The earth's structure is divided into four major components: the crust, mantle, outer core, and inner core. Each layer has its own chemical composition and physical state, and it can have an impact on life on Earth's surface.
To learn more about layers of the earth, refer to:
brainly.com/question/7786540
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A population of finches experiences a drought where all of the normal food types disappear leaving only ant hills that certain finches with thin beaks can access. Over time, almost all of the population has a similar long sharp beak. This is an example of:
Answer:
This question lacks options; the options are:
A) Artificial selection
B) Stabilizing selection
C) Disruptive selection
D) Directional selection
The answer is D) Directional selection
Explanation:
Changes in the environmenal condition affects the distribution of organisms phenotypes. Via this change, organisms with certain traits are naturally selected. The types of natural selection are; stabilizing, disruptive and directional.
Based on the description of the selection in this question, the type of selection is DIRECTIONAL. Directional mutation is that in which one of the two extreme phenotypes in a population is selected against while the other is favored by the occurrence of a natural environmental hazard. The distribution gradually shifts to favour one extreme over the other until the other unselected extreme gets extincted.
This is the case regarding a population of finches affected by drought caused by flood causing all their food source to disappear leaving only ant hills that certain finches with thin beaks can access. This environmental change favorably selects one extreme phenotype (finches with long thin beaks). Hence, a type of DIRECTIONAL selection
Which examples are ways that models can help scientists solve problems?
Check all that apply.
A model can represent something very large.
A model can represent something very small.
A model can represent something very complex.
A model can represent something that cannot be seen or touched.
A model can represent every aspect of a complex system.
Answer:
ABCD
a model can represent every aspect of a complex system is the only wrong one.
Explanation:
Which particles do plants absorb to obtain energy
Answer:The molecules of chlorophyll contained in the chloroplasts absorb energy in the form of light from the sun. Some plants need more sunlight than others, but all need at least a little. Instead of taking in oxygen and breathing out carbon dioxide like animals do, plants take in carbon dioxide from the atmosphere......thank you.have a great day
what tools should a scientist use to measure grams
Explanation:
you can use a scale or a balance
Answer:
Balance/scale
Explanation:
why blood is classified as tissue in cellular organization?
Answer:
Blood is considered as a connective tissue .
Connective tissues have cells scattered throughout an extracellular matrix. They connect different body systems. Blood is considered as a type of connective tissue because of two reasons.
(i) Like the other connective tissues, blood is mesodermal in origin.
(ii) It connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes the waste products. Blood has an extra-cellular matrix called plasma, with red blood cells, white blood cells, and platelets floating in it.
Answer:
Connective tissues have cells scattered throughout an extracellular matrix. They connect different body systems. Blood is considered as a type of connective tissue because It connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes the waste products
hope this helps you
what is the most important responsibility of individual in creating a safe environment especially on public health.
Answer:deacreaing pollution on the behalf of own is the best soon of it...
Explanation:
What are the two defining characteristics found in organisms that are grouped in the clade Lophotrochozoa
Answer:
A protostome creatures’ clade categorized within the Spiralia is known as Lophotrochozoa. Based on the molecular proof, the taxon was recognized as a monophyletic group. The two illustrating features of lophotrochozoans found in various members are the presence of a small, translucent top-shaped ciliated larvae or trochophores, and the existence of a horseshoe-shaped ciliated tentacles crown known as iophophores.
Energy receipt is highest between 0° and 23.5° N and S as this is where the sun moves overhead. What would happen if instead the sun moved overhead across a much larger region, such that it was traveling overhead between 0° and 60° N and S? Think about how think might impact certain, major wind patterns.
Answer:
Energy receipt is most noteworthy between the tropics. Had the sun gone up to 60 N and S and back forward, this would have prompted total decimation in significant wind pattern, numerous biomes, for example, Mediterranean biome.
Be that as it may, the most vital effect would have been on the wind patterns since worldwide wind pattern (mainly first order wind) are to a great extent reliant on the weight belt which are constantly influenced by the development of the sun to and fro.
Taking into account that Sun begins its excursion up to 60 N and S, at that point for a day, the Sun would be overhead on this scope. This would imply that during summer solstice (in northern half of the globe), all the weight belts and likewise wind belts would be reached out up to the 60. Thus, the proportionate region under the exchange winds that streams between the equator and the sub-tropical high-pressure belt would increment and the locale under Westerlies effect would additionally build toward the north.