Answer:
c. pituitary gland
Explanation:
The hypo(below) thalamus is an almond size structure located superiorly to the brainstem. it is located below the thalamus. Hence the name hypothalamus.
It is primary function is is to control the body homeostatic functions of sleeping and waking up, sex, thirst and hunger etc.
It performs these roles by serving as the primary link of the nervous system with the endocrine system. Pituitary gland is an example of endocrine gland that secrets many hormones. (they are called endocrine because the hormones are secreted directly into the blood streams.
Its activities are controlled by the nervous stimulation from hypothalamus. Therefore the instructions to secretes certain hormones to the post and anterior part of the pituitary gland depends on the hypothalamus.
Growth hormones, oestrogen, and thyroid are examples of hormones of the pituitary glands.
What might happen if the
order of expression of the
highlighted Hox gene was
disrupted, moved, or changed by mutation?
If the order of expression of the highlighted Hox gene was disrupted, moved, or changed by mutation, it would cause the replacement of a part of the body by a structure whose normal location would correspond to another site.
The differentiation of the limbs occurs during embryogenesis, thanks to the action of a group of specialized genes, called Hox gene.
This gene is involved in the developmental program that determines the location of organs along the anteroposterior axis.
These subdivide the embryo along the head-tail axis into cell fields with different developmental potentials, which will transform into limbs and other structures.
Hox gene mutations thus show that there are genes that can control the different regions of the genome that determine the structures of an organism.
These produce considerable anatomical transformations that, in the case of the fly, can consist of:
The formation of wings instead of halteres or legs.An extra pair of wings where small appendages called stabilizers would normally be.Therefore, we can conclude that if the order of expression of the Hox gene was disrupted, moved, or changed by mutation, it would cause the structures normally found in one body segment of the fly to be replaced by found in another segment.
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Is it possible for you to have traits that aren't visible in your parents? explain
What might happen to the magma convection currents if there were no radiogenic heat produced in the core?
How would this affect life on Earth?
Plz help me
Answer:
If there were no radiogenic heat produced in the core, there would be no convection currents, and life on the Earth would not be possible.
Explanation:
The convection currents are the result of heating by temperature gradients. Differences in temperature and density produce these currents. Warm materials are lighter and can ascend, while cold materials are heavier and denser, so they tend to descend. These materials movements create a circular motion pattern known as convective currents. They occur in the atmosphere, in the water, and the Earth mantle. In the last case, while the hot material emerges from the bottom areas, the cold mantle sinks, creating a circular convection current. These play a significant role in fluids circulation and might be responsible for the movements of the lithospheric plates that are over the mantle. The temperature on the surface is much inferior that the mantle´s temperature, so the lithospheric pieces sink, creating a descendent current. Near the terrestrial core, the heat might reach up to 3,500ºC, and solid materials in these areas melt and fuse. When fusing, materials lose density, becoming lighter and ascending again to the surface, creating the ascending currents. The currents of ascending materials are known as thermal feathers or plumes.
Hot ascending material keeps the surface warm, making life possible. Also, radiogenic heat produced in the core is responsible for the electromagnetic field.
The electromagnetic field protects the Earth from many particles that come forward to the surface from space, specifically from the sun. The electromagnetic field also influences the atmosphere, keeping it in its place, necessary for life on Earth.
The plate´s movement produces earthquakes and volcanic activity. Both of them also necessary for many reasons, such as keeping fertile soils and producing necessary atmospheric gasses.
Through the years, the core losses heat, and eventually, it will become solid. When this happens, convective currents will stop because there will be no heat from the bottom to make them move. The electromagnetic field will disappear, and the atmosphere will be affected as well. The Earth surface will become cold. Mantle movement will stop, and there will be no earthquakes nor volcanic activities. Every living being on Earth will be affected by this fact. Life on Earth will not be possible.
All cells come from existing cells. On top of that, they all have a cell membrane surrounding the _____ and most plants and bacterium have a cell wall.
Whats the missing word?
A. DNA
B. Cytoplasm
C. Mitochondrion
Answer:
b
Explanation:
cytoplasm
hope this helps and is right :)
All cells have a cell membrane surrounding their cytoplasms.
What are cell membranes?They are organelles of cells that surrounds the cytoplasm.
They delimit cells and act as a selectively permeable membrane that allows the passage of some materials in and out of the cell and limits the passage of others.
Cell membrane composition varies depending on the type of cell.
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Why does milk have to be kept in refrigerator? Choices:
1-The reactions that cause milk to spoil are slower at lower temps
2- Physical changes that cause milk to spoil are slower at lower temps
3- no chemical or physical changes can occur at lower temps
what is the disciplines?
Discipline Means to Teach — Not to Punish or Control
Through discipline. ... Discipline shares the root with the word “disciple.” It means to teach or to guide. It does not mean to control or punish.
5 Clear Mark for Review Sacculina carcini is a barnacle that attaches to the underside of the green crab. The barnacle finds a hole in the green crab's exoskeleton, then uses microscopic hairs to feed on nutrients from the green crab's blood. The barnacle also lays its eggs in the green crab reproductive system, which sterilizes the green crab. Which term describes the role of S. carcini in this relationship?
Answer:
S. carcini is a parasitic barnacle species
Explanation:
Parasitism: In this case, one of the species is beneficiated, while the other suffers a consequence, reducing its fitness. These interactions are mostly about nutrition, although there might be other benefits too. Some parasite species might coexist with their host, while some others might get them ill to the point of causing death. Parasitic attacks might be very nocive, and even though they are not lethal in a short period of time, they might slowly kill the host.
Parasitic species consume part of the host, but not the whole body. They develop an intimate relationship with their host.
The Host increases the fitness of the parasite speciesThe parasitic species decreases the fitness of the host.By taking the nutrients from the green crab's blood and sterilizing it, the barnacle causes a decrease in the fitness of the crab. The crab becomes weaker and its survival chances decrease, and they have no opportunity to reproduce. Meanwhile, the barnacle gets stronger and reproduces normally.
when the astronaut took this photo of earth, what moon phase would have been visible in view from earth?
A student is studying the levels of organization in living things and creates a table to give examples of the different levels.
Which of these should the student write as an example of the organism level of organization?
A. sparrow
B. stomach
C. muscle tissue
D. culture of bacteria
Answer:A. sparrow
Explanation:
Naomi’s allowance is $2.00 per week. If she convinces her parents to double her allowance each week for two months, what will her weekly allowance be at the end of the second month (week 8)?
Answer:
512
Explanation:
2x2 4x2 8x2 16x2 exc, exc
True or False: During asexual reproduction, the organism that is produced is genetically identical to the parent organism. (If your answer is false, then correct the statement to make it true.)
True
Hope this helps!
Answer:
True.
Explanation:
Asexual reproduction, the simplest and most primitive method of reproduction, involves a single parent and produces a clone , an organism that is genetically identical to the parent.
Explain why the resistance of the current path through the extracellular fluid is much smaller than the resistance of the current path through the axoplasm?
Answer:
The correct answer is - the large cross-sectional area and greater length of the cytoplasmic core get less resistance than the smaller cross-sectional area.
Explanation:
The greater length and the large cross-sectional area of the cytoplasmic path or core get less resistance than the resistance of the current path which is the small cross-sectional area of axoplasm. This leads it to greater resistance than the resistance of the current path through the extracellular fluid.
Other than this there is also an unequal distribution of the ions that leads to the increase in potential difference as higher Na+ ions present in cytoplasm and high amount of K+ ion present in axoplasm.
By studying footprints, skin prints and feather prints, many paleontologists now believe dinosaurs are most
closely related to
A reptiles
B. amphibians
C. mammals
D. birds
Which graphic organizer is commonly used to compare and contrast ideas?
Venn diagram
mind map
word web
problem-solution chart
Answer:
Venn diagram
Explanation:
The Venn diagram is a graphical organizer which is commonly used to compare and contrast ideas.
The Venn diagram is represented by several number of circle that represents different areas in order to compare one area to another. If the circles are overlapping it shows commonality or similarity between those both areas are. The Venn diagram makes easy to understand the difference or similarity between two areas.
Hence, the correct answer is "Venn diagram".
Answer:
A- Venn diagram
Explanation:
Edge22' <3
Use your knowledge of amino acids for energy metabolism to select the term that best completes each description. Glucose cannot be made when amino acids are converted to_________ . In the TCA cycle, some amino acids enter directly and, therefore, can continue in the cycle to generate energy and_______ . When is available, the body can use and glycerol to make some non-essential amino acids.
Answer:
Acetyl CoA; glucose
Explanation:
Acetyl-CoA is a molecule known to be part of different reactions during carbohydrate, protein, and lipid metabolism. Pyruvate (also known as pyruvic acid) is a molecule whose decarboxylation produces acetyl-CoA. Glucose cannot be synthesized when amino acids are converted to Acetyl CoA because this molecule (Acetyl CoA) cannot be converted back to pyruvate. The citric acid cycle (CAC), also known as the tricarboxylic acid (TCA) cycle, is a group of biochemical reactions that release energy by oxidation of acetyl-CoA obtained from sources such as proteins, carbohydrates and fats. During amino acid metabolism, glucogenic amino acids and TCA intermediates can be converted into glucose through gluconeogenesis.
Which of the following would be an example of osmosis?
A) the smell of ammonia spreading through the room
B) the shriveling of a small after salt is poured on it
C) water being poured into a glass
D) the absorption of water by a sponge
Answer:
D
Explanation:
An example of osmosis occurs when a sugar solution and water, top, are separated by a semipermeable membrane. The solution's large sugar molecules cannot pass through the membrane into the water. Another good example of osmosis would be dipping a sponge into water, because there is a higher concentration outside, so the water goes in and makes the sponge expand
Answer:
B) the shriveling of a cell after salt is poured on it
Explanation:
During osmosis, water moves from a low concentration to a high concentration. Since the salt is outside the cell membrane, it makes the outside have a higher concentration than the inside of the cell; causing the water to move from the cell and the cell shriveling.
Which of the following is not a chemical reaction that decomposes rock
O oxidation
O hydrolysis
O carbonation
O replacement
Answer:
replacement
Explanation:
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Although scientists are unable to explore the Sun's layers directly with instruments, they can measure the change in the speeds of the surface layers and the temperature of those layers from Earth Using this data, scientists have created models of the Sun and we
now know that the sunspots that form on the surface are the areas of coolest temperature for this stat. At the sunspots, temperatures are merely 3700 Kelvin (1) What does this indirect information about the Sun confirm?
A- The Sun has a structure similar to Earth's structure
B- Storms form on the surface of the Sun, similar to the atmosphere of Earth
C-The Sun's photosphere has properties of a solid, similar to the crust of Earth.
D-Convection occurs in parts of the Sun, similar to convection in the mantie of Earth
Answer:
I d k really but my educated guess is A- The Sun has a structure similar to Earth's structure * even tho the suns structure is completely gaseous is similar to earth w the layers ii don't know
Explanation:
Hope it Helped !
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Where do plants access the nutrients they need?
WARNING: This answer is NOT technical! ⚠
Plants can get their nutrients from the ground and dirt. But they grow using the carbon around them (Like the carbon dixiode we breathe out).
identify the organism that is being neither harmed or helped in Finding Nemo
Answer:
Some have lifelong relationships with other organisms, called symbiotic relationships. There are three different types of symbiotic relationships: mutualism, commensalism, and parasitism. Commensalism: only one species benefits while the other is neither helped nor harmed
One of the primary advantages of cell culture is the ability to isolate a single type of cell from a multicellular organism. How has this advance changed the study of biology?
Single-type cultures are easier and cheaper to maintain than cultures made of mixed cell types.
Scientists can completely avoid using animal or human test subjects during their experiments.
Cultures with single cell types behave in culture exactly as they would behave in a tissue or organ.
Scientists know that any response during an experiment is associated only with that cell type.
Answer:
Scientists know that any response during an experiment is associated only with that cell type.
Explanation:
A cell culture is a group of cells that develops from a single original cell. Biologists can use cell cultures to test cell responses under controlled environmental conditions in order to study interactions between cells, and different processes occurs in it. Cell culture is one of the major tools used in the study of physiology and effect of toxic substances on the cells.
Answer: The answer is D.
Explanation:
Please fast i need an answer!
Answer:
B
Explanation:
the nerve endings are exposed
identify the organism that is being neither harmed or helped in Finding Nemo
Answer:
Some have lifelong relationships with other organisms, called symbiotic relationships. There are three different types of symbiotic relationships: mutualism, commensalism, and parasitism. Commensalism: only one species benefits while the other is neither helped nor harmed
se the information from the article to answer the question.
NEOs
When scientists discuss objects that might hit Earth, what term do they use to describe them as a group?
near-Earth objects
asteroids and comets
Shoemaker-Levy 9
celestial bodies
Answer:
A. near-Earth objects.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.
When scientists discuss objects that might hit Earth, the term which they use to describe them as a group is near-Earth objects.
A near-Earth objects can be defined as a small solar system body such as comets and asteroids whose orbit draws it close or in proximity to the earth's orbit due to the gravitational force of attraction of nearby planetary bodies.
Basically, if the closest approach of a planetary body to the Sun is less than 1.3 AU it is considered to be a near-Earth objects.
Hence, near-Earth objects may pose a collision danger to planet earth.
Answer: A Near Earth objects
Explanation:
Use the information from the article to answer the question.
NEOs
When scientists discuss objects that might hit Earth, what term do they use to describe them as a group?
near-Earth objects
asteroids and comets
Shoemaker-Levy 9
celestial bodies
Give the genotypes of the pure-breeding parental flies, and the genotype(s) and phenotype(s) of the F1F1 progeny they produce. Give the genotypes of the pure-breeding parental flies, and the genotype(s) and phenotype(s) of the progeny they produce. Parental: cd /c d , cd /c d ; progeny: c d/c d . Parental: cd /c d , cd /c d ; progeny: cd /cd . Parental: cd /c d , cd /cd ; progeny: cd /c d. Parental: c d/c d, cd /cd ; progeny: cd /c d.
Complete question, Answer and Explanation:
Due to technical problems, you will find the complete question, the answer, and explanation in the attached file
Know what atomic mass and atomic number represent
The function of mitosis is
1. Why is California at hingher for earthquakes than North Dakota
Answer:
because California is located on the San Andreas Fault
Explanation:
California is one of the states that have higher seismic activity because it lies on an individual fault known as the San Andreas Fault. Faults are regions where two tectonic plates are moving with respect to one another, thereby they are prone to suffer earthquakes. The San Andreas Fault is a continental fault that extends approximately 800 miles (1,200 kilometers) through the US state. Conversely, earthquakes in North Dakota are uncommon because this state is located in the middle of a tectonic plate. The last earthquake in North Dakota had a magnitude of 3.3 (Richter Scale) and it happened almost 10 years ago (2012), in Williston.
Using genetic code table translate this mRNA sequence. AUG CUU AAG GGU CGU CAU UAG.
Answer:
Explanation: g
Question 4
Place the following in correct developmental sequence:
1. reticulocyte
2. Proerythroblast
3. hemocytoblast
4. erythroblast
3.2.4.1.
3.1.4.2.
2.3.4.1.
2.1.3.4.
.3.1.4.2
-3. hemocytoblast
-1. reticulocyte
-4. erythroblast
-2. Proerythroblast