The brain is the control center of regulating body temperature. In humans, our temperature is nearly 37 degrees Celcius which is the setpoint, when our brain detects that our body temperature is above the set point -pertains to stimulus, the receptors which is usually a nerve, receive and transfer signal to the brain. Now, the brain (control center) activates the warming mechanism, and the effectors will respond by dilation of blood vessels, sweating of the person, and decreasing the metabolic rate. Finally, the body temperature lowers as a response to this process.
Read the section "Seeds." Which sentence from the section states the main idea about seeds? A The life cycle of flowering plants begins with a seed. B The outside of a seed is called a shell. C The wind blows some, and others float on water. D The next phase starts when a seed gets someplace it can start growing.
Answer:
A The life cycle of flowering plants begins with a seed.
Explanation:
Seeds are structures found only in a group of plants called higher plants, comprising of gymnosperms and angiosperms. Seeds are the developed/fertilized ovules of a plant.
Seeds are basically the reproductive unit of the angiosperms, also called FLOWERING PLANTS i.e. plants that produce flowers (reproductive structures). This means that the life cycle of flowering plants begins with the germination of the EMBRYO in a SEED.
What does this timeline suggest about the feminist movement?
Answer:
B
Explanation:
Why do you think it’s difficult to measure the melting point of a substance?
Answer:
Explanation:
It is difficult to find a melting point because very small amounts of impurity can cause the melting point to spread out over a range of several degrees. Impurities also lower the melting point of a substance; this explains why we put salt on icy sidewalks and roadways.
Answer:
It is difficult to measure the melting point of a substance because very small amounts of impurity can cause the melting point to spread out over a range of several degrees.
Explanation:
List down the female reproductive organs. Describe any three
of them in short.
Answer:
uterus , ovaries , fallopian tubes.
Explanation:
All of the following are ways that animals maintain homeostasis and cool down except
flapping their wings.
sweating.
panting their tongues.
the production of goosebumps.
Answer:
flapping their wings
Explanation:
Homeostasis is a phenomenon which involves the ability for an organism to maintain a stable internal environment despite fluctuations in the external environment. Homeostasis is important for the survival of living organisms as their cellular functions depend on it.
One of these environmental conditions is heat/hot temperature. Animals need to maintain a stable internal internal temperature despite the change in environment's. Animals do this by cooling down via various ways which include the following:
- Animals like apes, primates possess sweat glands like humans and hence cool down by SWEATING
- Animals like dog quickly exhale hot air and bring in cool air in a process called PANTING to cool down.
- Production of GOOSEBUMPS in animals help their hairs to stand in adverse weather conditions
Note that bird flap their wings in order to support flight and not perform an homeostatic process like cooling down.
How can local environmental changes have global effects? a. Organisms can move from one environment to another. b. Air and water move from region to region. Increased carbon dioxide in one location can cause increased temperatures in other locations. d. All of the above are true.
Professor Dunn-Square is explaining the importance of ______, or the level and variety of loudness in our voice. She says the key is ______.
Professor Dunn-Square is explaining the importance of volume, or the level and variety of loudness in our voice. She says the key is proper voice projection.
Volume is an essential indicator in technical evaluation due to the fact it's far used to degree the relative importance of any marketplace move. If the marketplace makes movements a huge quantity for the duration of a given period, then the power of that motion both profits credibility or is considered with skepticism primarily based totally at the extent for that period. Strophic form is a music in which the song verses, stanzas or chorus are repeated throughout the songs.
To learn more about volume check the link below:
https://brainly.com/question/28091025
#SPJ4
Which traits are shared by all eukaryotic cells, and what are the three major lines of evidence that mitochondria arose from endosymbiosis with proteobacteria?
(Penn Foster)
The plant cell, like the animal, is eukaryotic, that is, it has a nucleus delimited by a nuclear membrane (karyotheca). In addition to this characteristic, these cells have a plasma membrane and cytoplasm, structures common to any cell.
What are the three main lines of evidence that mitochondria arose from endosymbiosis with proteobacteria?"Some organelles (mitochondria and chloroplasts) existing in eukaryotic cells emerged thanks to a symbiotic association. It is believed that mitochondria and chloroplasts are descendants of prokaryotic organisms that were captured and adopted by some cell, thus living in symbiosis."
With this information, we can conclude that After engulfing the cell, it remained maintained in the cytoplasm of the host cell without degradation. The two organisms then began to live in symbiosis and were later unable to live in isolation. The prokaryote likely benefited the host cell with the process of respiration (mitochondria) and photosynthesis (chloroplast), and the host cell provided protection and nutrients.
Learn more about eukaryotic in brainly.com/question/4644590
#SPJ1
PLZ HELP ITS A BIG GRADE AND I DON'T KNOW IT
Which of these has kinetic energy?
A. a book sitting on a shelf
B. hat and gloves on a table
C. cars parked in a parking lot
D. a child kicking a soccer ball
Answer:
D. A child kicking a soccer ball
Explain why "SYNTHESIS" makes sense as the "root word" for making sugar.
I need number 8 please!!! Thank youuu❤️
Answer:
through water
Explanation:
it just makes sense
Which of the following liquids causes heartburn?
chyme
cecum
stomach acid
bile
The liquid that causes heartburn is stomach acid.
Prompt
Explain at least three ways trees assist in keeping high water quality.
Answer:
Trees improve water quality by slowing rain as it falls to the Earth, and helping it soak into the soil. They also prevent soil from eroding into our waterways, reduce storm water runoff, and lessen flood damage. They serve as natural filters to protect our streams, rivers and lakes.
Giving BRIANLIEST PLZ HELP AND ANSWER ASAP!
Blake is using a screw to hang a picture in his room. Which of the these is the best description of a screw?
A screw allows you to use less force because a screw acts like a pulley.
A screw allows you to use less force because a screw acts like an inclined plane.
A screw allows you to do less work because a screw acts like a lever.
A screw allows you to do less work because a screw acts like an inclined plane.
A screw allows you to use less force because a screw acts like an inclined plane is the best description of a screw.
What are the functions of screw?A screw is a similar types of fastener typically made of metal and characterized by a helical ridge, called a male thread. Screws and bolts are used to fasten materials by the engagement of the screw thread with a similar female thread in a matching part.
Typically, screws and bolts are made from steel due to its strength and relatively inexpensive cost. However, screws and fasteners can also be produced from stainless steel, brass, titanium.
To measure the diameter of screws and bolts, you measure the distance from the outer thread on one side to the outer thread on the other side. This is called the major diameter and will usually be the proper size of the bolt.
Learn more about screw:
https://brainly.com/question/19552791
#SPJ2
PLS HELP ME WILL MARK BRAINLYEST: Why is it important that people use fewer non-renewable resources and more renewable resources?
Your Opinion
State your opinion on the question above.
Evidence
What evidence or reasons can you gather to support your opinion?
subject: sciences
pls give long answer
Answer: First off, this makes us dependent on something that is finite. Non-renewable resources such as fossil fuels will eventually run out due to the fact that the dead organisms that have been undergoing the process of becoming carbon (more or less) for millions of years won't have anything to replenish them. Along with that, environmental problems occur like we all are seeing in the United Kingdom and even in the US.
Explanation:
Oppopwhvrosvaofvskxie
Explanation:
what's the question though? lol
biology can be organized into a hierarchy which of the following represents the lowest level in such a scheme tissues nucleus cells organisms
Biology can be organized into a hierarchy which of the following represents the lowest level in such a scheme tissues nucleus cells organisms by nucleus.
The genetic material is housed in a double-membrane organelle called a nucleus that is present in eukaryotic cells. As was previously said, eukaryotic cells can only be found in eukaryotes and have a nucleus as their defining characteristic. However, some cells, like RBCs, lack a nucleus despite deriving from eukaryotic organisms. Usually, the cell organelle is the one that is the easiest to observe. Membranes surround and fully enclose the nucleus. The nuclear envelope is the structure that surrounds it. The membrane separates the contents of the nucleus from the cytoplasm. The cell's chromosomes are also included within it. The chromosomes, which contain DNA, supply the genetic data necessary for the synthesis of various cell components as well as for the reproduction of life.
Learn more about nucleus
brainly.com/question/17704494
#SPJ4
An amino acid's unique characteristics is defined by the ________.
When the hilum of the kidney faces anteriorly, posteriorly, or laterally instead of medially, it is called
Answer:
Answer: skeletal system. When the hilum of the kidney faces anteriorly, posteriorly, or laterally instead of medially, it is called. a malrotated kidney.
Explanation:
Global climate change is the term we use when we discuss how global warming has impacted the climates all over the world. Many in the public however know the term “global warming” instead of “global climate change”. Do you feel that we should be focusing more on climate change or warming? Do you feel that we should be focusing more on climate change or warming?
Answer:
we should focus on the global warming. i t cause a number of problems to the humanity, animals, plants and the whole world.
What is the complementary DNA strand from the following DNA template GGTACTAGCCATATCG
Answer:
CCATGATCGGTATAGC
Explanation:
A pairs with T
C pairs with G
14. What are two cell surface modifications that we can expect to see on the external side of the plasma
membrane? In what type of cells (1 plant cell modification and 1 animal cell modification) would we
expect to see each type of modification?
The two cell surface modifications we can expect to see on the outside of the plasma membrane is a signaling molecule, or ligand.
What is Receptors and ligands?Receptors and ligands come in many forms, but they all have one thing in common: they exist in closely aligned pairs, with a receptor recognizing only one (or a few) specific ligands, and a ligand binding to only one (or a few) target receptors. Binding of a ligand to a receptor changes its shape or activity, allowing it to transmit a signal or directly produce a change within the cell.
Plasma membrane receptors are membrane-anchored proteins that bind ligands on the outer surface of the cell. In this type of signaling, the ligand does not need to cross the plasma membrane. Therefore, many different types of molecules (including large, hydrophilic or "water-attracted" ones) can act as ligands.
Learn more about plasma membrane in brainly.com/question/14727404
#SPJ1
Which argument is BEST supported by the
information given?
A. The earthworm and lizard evolved at the same
time because of the absence of legs and hair.
B. The lizard and humans share a common
ancestor because of the presence of a
backbone and legs.
C. The trout and humans share a common
ancestor because of the presence of a
backbone.
D. Earthworms were the most recent to evolve
because of the absence of the derived
characteristics.
Answer:
B
Explanation:
It tells us a lot about why the argument is correct.
1. The (incorrect) belief that life is produced by a mysterious spirit or force is called: a. spiritualism b. recidivism C. vitalism d. hoodoo-voodooism
Answer:
it has the word spirit in it. Spiritualism
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. Allele D produces tall plants and is dominant to d for short plants, and allele R produces round fruit and is dominant to r for oval fruit. The expected percentages of progeny phenotypes are listed below:
tall oval = 41%
short round = 41%
tall round = 9%
short oval = 9%
(a) What proportion are expected to be tall and produce round fruit?
In a diploid plant species, the proportion of progeny expected to be tall and produce round fruit is 32%.
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. The expected percentages of progeny phenotypes are tall oval = 41%, short round = 41%, tall round = 9%, and short oval = 9%.To determine the proportion of progeny expected to be tall and produce round fruit, we need to consider the alleles for each trait. Allele D produces tall plants (dominant) and allele d produces short plants (recessive). Allele R produces round fruit (dominant) and allele r produces oval fruit (recessive).From the given percentages, we can deduce that tall ovals and short ovals combined make up 9%. Since tall oval is 41% and short oval is 9%, the proportion of progeny expected to be tall and produce round fruit is 41% - 9% = 32%.Therefore, the proportion of progeny expected to be tall and produce round fruit is 32%.For more questions on diploid plant
https://brainly.com/question/9217496
#SPJ8
How Can Regulation be Accomplished? Chemotaxis by Pseudomonas aeruginosa requires regulation of macromolecules in response to signals. Protein regulation is very important and can be grouped into two categories: those that are based on protein activity and those that are based on the amount of protein present ,write the type of regulation described that does not affect the amount of protein present.
1. regulating amount of mRNA made
2. catabolite repression
3. post-translational modification small RNA (sRNA) regulation regulation of transcription
4. attenuation controlling whether mRNA is translated
Answer:
3. post-translational modification small RNA (sRNA) regulation regulation of transcription
Explanation:
The post-translational modification does not affect the amount of protein present because this type of change is only done to the protein when the translation process has finished, and there is a protein as a result. After the translation, the final product can suffer modifications such as the addition of different components, or enzymatic modifications. In other words, they are chemical changes that the protein experiences that do not affect the amount of protein present.
what is an example of mitosis at work is a leaf?
\The data in the table were recorded during an investigation in which a paramecium was placed in a hypertonic salt solution.
A 2-column table labeled Paramecium Contractile Vacuole Contractions has 5 rows. The first column is labeled salt concentration outside paramecium with entries very high, high, medium, low, very low. The second column is labeled contractions per minute with entries 2, 8, 15, 22, 30.
Which statement correctly describes the bars on a bar graph representing the data?
The graph has five bars of equal height.
The bars range from tallest for very high concentration to shortest for very low concentration.
The bar for very low concentration is twice the height of the bar for medium concentration.
The bar for very high concentration is five times the height of the bar for very low concentration.
The table Paramecium Contractile Vacuole Contractions which correctly describes the bars on a bar graph representing the data is the bars range from tallest for very high concentration to shortest for very low concentration.
The data in the table records the number of contractions per minute of a paramecium's contractile vacuole in response to different salt concentrations in the surrounding environment.
A bar graph representing this data would have five bars, one for each level of salt concentration.
The bars would vary in height according to the number of contractions per minute, with the tallest bar representing the highest salt concentration and the shortest bar representing the lowest salt concentration.
Therefore, the correct statement describing the bars on the bar graph would be: "The bars range from tallest for very high concentration to shortest for very low concentration."
This statement accurately describes how the height of the bars would vary based on the data in the table.
The other statements do not accurately represent the data or the trends observed in the table.
For more questions on Paramecium Contractile Vacuole Contractions
https://brainly.com/question/30438288
#SPJ8
Associate specific relationships between science and/or technology and human population growth.
The relationship between population growth and technological change has been debated since the end of the eighteenth century a debate whose main configuration has proved remarkably persistent. During the ensuing 200 years, historically unprecedented rates of change have been observed in both variables: in industrial, commercial, and communications revolutions spreading out from Europe, North America, and Japan; in parallel (though spatially and temporally uneven) revolutions in the technological base of agricultural production; and in a demographic transition–in which mortality decreased and fertility first increased, then decreased that is still underway in many developing countries. Interconnections there must be, yet the attribution of primacy and direction of causation among these variables, not to mention the nature of the mechanisms involved and means of influencing outcomes in the interest of meeting social goals, remain controversial. Meanwhile, a new awareness of the emergence of complex social-environmental systems, whether at local or global levels, has extended the debate beyond the discipline of economics, and broadened its emphasis from the welfare of the human race to that of the planet.
What are the two main differences between capillaries in the periphery and capillaries surrounding the brain
Answer:
The options are not given but they are gotten from another websites.
A. Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells.
B. Capillaries surrounding the brain have pores and are surrounded by membranes of astrocyte cells.
C. Capillaries surrounding the brain have no pores and are not surrounded by membranes of astrocyte cells.
D. Capillaries surrounding the brain have pores and are not surrounded by membranes of astrocyte cells.
The correct answer is option A.
Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells.
Explanation:
Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells because
Capillaries are tiny blood vessels in the circulatory system that connect aterioles to venules. They are the most abundant or they are much blood vessels. They can penetrate the tissues of the body which allow passage of food nutrients, oxygen in the body thereby allowing exchange of nutrients and oxygen between the body tissues and the blood.
Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells while capillaries in the periphery Capillaries surrounding the brain have pores and are not surrounded by membranes of astrocyte cells.