Answer:
The oesophagus (gullet) is part of the digestive system, which is sometimes called the gastro-intestinal tract (GI tract). The oesophagus is a muscular tube. It connects your mouth to your stomach.
Answer:
the part of the alimentary canal which connects the throat to the stomach. In humans and other vertebrates it is a muscular tube lined with mucous membrane
Why are G proteins found in cell membrane of the cell ?
Answer:
It is found in cell membrane because to bind extracellular substances and transmit signal.
In the quest to understand the basis of infertility in humans, researchers have identified a mutation in a gene associated with chiasmata. This protein normally acts to promote homologous recombination.Why might a defect in homologous recombination have consequences for fertility?A. The chiasmata halts the whole process of meiosis, if crossover do not form properly.B. Crossover formation is a necessary step in meiosis I to ensure proper chromosome segregationC. A checkpoint requires a certain level of genetic variability for meiosis to proceed.D. Chiasmata are the connections between the centromeres and the centromeres that pull them to each pole of the daughter cells.
Answer:
B. Crossover formation is a necessary step in meiosis I to ensure proper chromosome segregation
Explanation:
Crossing-over is a unique phenomenon that occurs in the prophase I stage of meiosis I, where non-sister chromatids of homologous chromosomes exchange their chromosomal segment. The physical point where this exchange occurs is called CHIASMATA. Hence, a mutation that affects the gene associated with the chiasmata will affect the occurrence of crossing over or homologous recombination.
Crossing-over, through the formation of the chiasmata, is responsible for the physical alignment and proper segregation of chromosomes into gametes. Naturally, the chiasmata formed as a result of recombination during meiosis helps ensure that the chromosomes stay together until it is the right time to separate. This way, any chromosomal defect in the resulting gamete is prevented.
However, an error or defect in homologous recombination might give rise to gametes with chromosomal disorder, a condition known as ANEUPLOIDY i.e. missing or additional chromosomes in gametes. This can affect the fertility of the involved human.
How do vaccines act on germs?
Answer:
a vacine work by traning the immune system by reconize and combine either virus or bacteria.
Why do you think premenopausal women need more iron than
men of the same age?
Answer:
Women need more iron than men to make up for the amount of iron they lose in their menstrual period.
Explanation:
Answer:
Premenopausal women shed blood as part of menstruation every month, which lowers the level of iron in the body. So, they need more iron than men and are also at a greater risk for this nutritional deficiency.
PLATO
Explanation:
The period of female fertility during each Month is short For fextilization to take place intercouce must occur each
a) A few hours before ovalation up to 4-5 days after avulation
b) Around 24 hours before ovulation up to around. 24 hours after ovulation
C) Sometimes between 2-3 days before ovulation upto 2-3 days after ovulation
d) Around 4-5 days before ovulation upto a few hours after ovulation
E) Around 4-5 days before ovulation upto 4-5. after ovulation.
Answer:
The so called fertility window is the days in the menstrual cycle when conception is ... Ovulation usually occurs 14 days prior to your period starting.
Explanation:
It isn't any of your selections but I hope it helped for the choices to decide which one would go to the paragraph I have given
Why are G proteins known as guanine nucleotide-binding protein?
Answer:
G proteins, also known as guanine nucleotide-binding proteins, are a family of proteins that act as molecular switches inside cells, and are involved in transmitting signals from a variety of stimuli outside a cell to its interior. ... G proteins belong to the larger group of enzymes called GTPases.
What are similarities and differences between insects that go through complete metamorphosis and incomplete metamorphosis?
There are two types of metamorphosis-incomplete and complete.
In incomplete metamorphosis, an adult insect lays an egg. The egg hatches into a nymph, which is like a mini adult. This nymph then grows into an adult. As the nymph grows, it molts several times. Grasshoppers are examples of insects that undergo incomplete metamorphosis.
Explanation:
Hope it helps you and don't forget to rate-my answer down below. Plus push the brainiest button and have a good day!Your Best,
Edwin
he most common source of osteomyelitis is an infection that migrates via the bloodstream. direct invasion from a fracture. surgical contamination. a joint prosthesis.
The correct answer is A. An infection that migrates via the bloodstream
Explanation:
Osteomyelitis is a serious condition, in which an infection develops in bones. This causes symptoms such as pain, inflammation, and can lead to the spread of the infection to other tissues or bone necrosis if it is not treated. In terms of causes, this condition develops when the bone is exposed to bacteria or similar that causes the infection, this can occur during surgeries or fractures. However, the most common source of infection is via bloodstream this means the bacteria or germ is in the blood and it enters the bone through the bloodstream. Also, once the bacteria or germ is in the bone it causes the infection.
g In humans and higher primates, _____ is the final product of purine base catabolism and is excreted in urine. However, its inadequate excretion is a cause of a disease called ______
Answer: Humans and greater primates excrete water, broken down proteins and Urea. Many things cause unusual urine, Urea gives urine its yellow color a lack of urea can mean kidney failure. however it's hard to tell a lack of urea by just looking at urine as drinking excessive amounts of water turns the color clear and drinking caffeine turns the color reddish or brown so lab testing must be done
Which of the following groups could be identified using the biological species concept? Select all that apply. Select all that apply. bacteria living today extinct dinosaurs sunflower species living today lizard species living today
Answer:
Bacteria, Sunflowers, Lizards.
Explanation:
They are all biological species due to being apart of flora and fauna. It wouldn't be dinosaurs since biologists study living things, dinosaurs are extinct.
The groups 'sunflower species living today' and 'lizard species living today' could be identified using the biological species concept.
The biological species concept defines a species as a special group of interfertile individuals.These individuals can then cross in order to produce fertile offspring and thus perpetuate the species.The biological species concept was developed by the biologist Ernst Mayr.In conclusion, the groups 'sunflower species living today' and 'lizard species living today' could be identified using the biological species concept.
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https://brainly.com/question/2634533
what is erythrocytopenia?
Answer:
Medical Definition of erythrocytopenia
: deficiency of red blood cells. — called also erythropenia.
Explanation:
If you like my answer than please mark me brainliest thanks
Explanation:
erythrocytopenia is deficiency of RBCs
what will you do to climb faster on pole
Answer:
Explanation:
Aim for Consistency. The quickest and easiest way to get better is simply to climb everything you can, everywhere you can, in every different style. ...
Climb Intentionally. ...
Challenge Yourself. ...
Don't Let Fear Get in Your Way. ...
Learn the Art of the Redpoint. ...
Forget About Grades.
Aalge are called autotrophs why give reason
Flowers may be solitary, as in a zinnia or dahlia, or appear in clusters or a/an _______________, as in a/an _______________. g
Answer:
The answer is "inflorescence, oak"
Explanation:
An inflorescence is a flower group, which are clustered nearby in a stalk, which is also known as the peduncle. In lily, the individual flower was found, not quite as groups. However, the flowers are set as an inflorescence in the oak tree. It refers to a group or community of a flower cluster borne on a flower, which is traditional flowers of oak are called catkins, that's why 'inflorescence, oak' is the reaction.PLEASE HELP ASAP FAST
Answer:
B.UAA is correct answer
Which of the following will most likely result in anaerobic respiration? A. Running B. Walking C. Sitting D. Solving Algebra equations
Answer:
A-Running
Explanation:
Anaerobic respiration is the breakdown of glucose to produce energy in the absence of oxygen. We usually respire anaerobically when we exercise so running would be the most likely answer.
Hope it helps...
Soil moisture (wethess) is
important for...?
A. it is a determination of how much water the soil can
hold and how easily water moves through,
B. it is evidence of how easily the process of runoff in
which the soil is filtered can occur.
C. Both & B
D. None of the above
Explanation:
Soil moisture is a key variable in controlling the exchange of water and heat energy between the land surface and the atmosphere through evaporation and plant transpiration.
what type of molecule do plant cells use for long term energy storage
Answer:
ATP
Explanation:
In plants, energy is stored in the form of ATP and NADPH. Energy is produced in the presence of light it is in the thylakoids and mitochondria.
ATP: Adenosine triphosphate
NADPH: nicotinamide adenine dinucleotide phosphate hydrogen
Bree Wakefield is a 19 year old college student, living in a dormitory on the campus of her university. She started to feel poorly and began to miss classes. She was diagnosed with a disease of the CNS ?
Answer:
We don't know. Possibly not
Explanation:
CNS diseases are related to the nervous system
symptoms include memory loss or lack of coordination
which doesn't seem to be the case
she probably is feeling a mild headache
Terminologies used in cattle
Answer:
Like.. naming types of cattle?
Explanation:
Names for cattle ? or names.. for things used on cattle, or things done to cattle... elaborate and i can help!!!
Where does that air go as a result?
Answer:
Air go from one place to another due to difference in temperature of land and sea.
Explanation:
Air go as a result of wind from one place to another. Air moves from land to sea is called land breeze and from sea to land is known as sea breeze. This will occur when there is difference in temperature between sea and land. Sea breeze occurs at afternoon while land breeze occurs at night till morning. Warm air produces low pressure and cold air produces high pressure so when warm air rises, cold air takes its place and this cycle continues.
which particles is the fundamental unit of all matter in both living and nonliving
Answer:
atoms
Explanation:
all things in the universe are made of atoms and they are considered the fundamental unit of matter.
non-living things are composed of different compounds and molecules.
living things are made of cells, and cells themselves are made of different molecules. So living things are also made of atoms.
Acidification of the stomach uses all of the following types of transport EXCEPT: A. channels. B. pumps. C. antiporters. AND. symporters. E. All of these are used by parietal cells.
Answer: Option E.
All of these are used by parietal cells.
Explanation:
Parietal cells are found in the stomach and they produced gastric acid(Hcl)..
HCl is produced when water mixed with carbondioxide in the parietal cell to produced carbonic acid which is catalyses by carbonic anhydrase. The carbonic acid then dissociates into hydrogen ion and carbonate ion.
Parietal cell produce HCl due to histamine (via H2 receptors), acetylcholine (M3 receptors) and gastrin (gastrin receptors).
Therefore it uses channels, pumps, antiporter.
Help me please!!! I need this
Answer:
The correct answer is - option A. 1 (ovary).
Explanation:
Oocytes or egg are produced in the ovaries during the process of the female gametogenesis in female reproductive system. Ovaries are located on each side of the uterus that are oval and small in shape and size and located lower abdomen.
Among other female reproductive organs these are located above others. The ovaries produce oocytes and hormones It is the site at which primordial germ cell (PGC), become primary oocytes.
Thus, the correct answer is - option A. 1 (ovary).
What is the name of lipids building blocks?
Answer:
Glycerol and fatty acids are the basic building blocks of fats (lipids).
Explanation:
Explain briefly the forces that govern the upward movement of water and dissolved
mineral salts in plants.
tom of classification.
Answer:
The continuous evaporation of water (or transpiration) from the cells of a leaf crates a kind of suction which pulls up water through the xylem vessles. Thus, transpiration helps in the upward movement of water and dissolved minerals from the roots to the leaves through the stem.
A group of organs working together to achieve a common function is known as:
-an embryo.
-an organ system
-multipotent.
-a tissue.
Answer:
The answer is B an Organ system
Answer:
an organ system
Explanation:
The correct answer is organ system. A tissue is a group of cells working together to achieve a common function. An embryo is a fertilized egg that has developed from a zygote. Multipotent merely refers to a type of stem cell that has limited specialization capabilities relative to the capabilities of totipotent and pluripotent cells.
What percentage of the nation’s demand for electricity could be produced in the future by wind energy?
Answer:
5-10%
hope this is helpful
which of Earth's systems was most affected by fossilized dinosaurs
Answer:
C. Lithosphere
Explanation:
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Answer:
yes I can help you your question??