Answer:b) Body temperature is regulated by negative feedback. The stimulus is when the body temperature exceeds 37 degrees Celsius, the sensors are the nerve cells with endings in the skin and brain, the control is the temperature regulatory center in the brain, and the effector is the sweat glands throughout the body.In negative feedback, the body works to correct a deviation from a set point, it tries to get back to normal. ... In positive feedback, the body changes from the normal point and amplifies it. Examples include blood clot formation, lactation, contractions during childbirth, and fever.In positive feedback mechanisms, the response to a stimulus does not stop or reverse it but instead keeps the sequence of events going up. ... A positive feedback mechanism can be harmful, as in case of fever that causes metabolic changes pushing it to be higher.xamples of processes that utilise negative feedback loops include homeostatic systems, such as:
Thermoregulation (if body temperature changes, mechanisms are induced to restore normal levels)
Blood sugar regulation (insulin lowers blood glucose when levels are high ; glucagon raises blood glucose when levels are low)
Explanation:
A steel pin has a mass of 8.8grams and a volume of 1.1cubic centimeters.
Answer:
8 g/cm is the densiry
Explanation: mass/volume
Part I: Layers of the Epidermis
A. The following diagram of the epidermis has four distinct layers. In areas of the body
with thick skin, such as fingertips, palms, and soles, there is an additional layer
called the stratum lucidum. This layer consists of flattened, clear, dead cells, located
beneath the stratum corneum. To help you learn the layers of the epidermis, label
Figure 9-1 with the terms provided below.
6. The house sparrow was first introduced to
New York in 1851. It is now distributed
across most of North America. As the
species expanded its range, it began to live
in environments that were different from
its original habitat. The birds now vary in
size, depending on their geographic
location. The map shows the distribution of
house sparrows by size.
Answer:
The answer is "Cold temperatures in the North favor the survival of populations of larger sparrows over populations of smaller sparrows"
Explanation:
I hope this helps!!
Please as brainliest if correct. ;-)
What global climatic change gave gymnosperms an advantage over ferns?
A) Increased fluctuations in global climate
B) the climate becoming hotter and wetter
C) the climate becoming cooler and drier
D) the climate becoming hotter and drier
Answer:
it is D
What global climatic change gave gymnosperms an advantage over ferns?
A) Increased fluctuations in global climate
B) the climate becoming hotter and wetter
C) the climate becoming cooler and drier
D) the climate becoming hotter and drier
The climate becoming hotter and drier which is the global climatic change gave gymnosperms an advantage over ferns. So, the correct option is D.
What are Gymnosperms?In contrast to angiosperms, or blooming plants, whose seeds are enclosed by fully developed ovaries, or fruits, gymnosperms are described as any vascular plant that reproduces by an exposed seed, or ovule. Many gymnosperms bear their seeds in cones, which are known as "uncovered seeds" because they are not visible until they are fully developed.
Pinophyta, Cycadophyta, Ginkgophyta, and Gnetophyta are the four classes of gymnospermous plants, having 88 genera and more than 1,000 species among them. Gymnosperms have an advantage over ferns as a result of the temperature growing hotter and drier as a result of global climate change.
Therefore, the correct option is D.
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What is a bad outcome of technology
HELP PLEASE!!!!!!!!!!!!!!!!!!!
Answer:
I believe it is d because it has zero fat calories and zero fat but im not sure
Explanation:
An atom with 18 protons, 22 neutrons and 18 electrons would be chemically
How is Earth a System with interacting parts?
Please help ASAP! <3
The tool in the photograph is a ___
a. satellite
b. spacecraft
c. telescope
It is used for ____
a. magnifying distant objects
b. transporting humans or goods
c. traveling in space
Answer:
A,A
Explanation:
I think !!!
based on the picture it looks like a satellite
Answer:
C)Telescope
A) Magnifying distant objects.
What was one long-term effect of laws that banned?
factories from polluting American waterways?
А
Individuals and families ended up polluting more than
factories.
Water pollution disappeared almost entirely.
C
Factories started polluting Mexican and Canadian waters
instead
D Anaerobic bacteria became endangered species.
Answer:
A. Individuals and families ended up polluting more than factories
Explanation:
fewer living organisms are found at a desert, deep ocean or high mountain?
Answer:
High mountains
Explanation:
Because they are high up in the air
Aloe vera plants do not contain compounds that may have health benefits.
True
False
Answer:
false
Explanation:
it contains componets to help fight bacteria
what is the name for an organized group of organisms
Which of these is an example of a chemical change?
O A. Dissolving salt in water
OB. Burning a plece of wood
O C. Melting ice
O D. Breaking a tree branch
Answer:
A.Dissolving salt in water
Explanation:
Hope it helps
Is the monocercomonoides considered a life form
Answer:
yes
Explanation:
Name 5 plants that seem to be native to your area. For each plant. list one reason why it is
important to humans. For example, can these plants be used as a source of food? Are they used in
landscaping?
Answer:
A butterfly weed, flowering dogwood, the red maple, the orange day lily, and the Chinese privet.
Explanation: I did the test.
Why would water not count as a limiting factor in the forest for trees?
Answer:
Because there is no limit to the water cycle
Living things should not be viewed under a(n) _____ because the preparation process would kill them.
Answer:
Electron Microscope
Explanation:
In contrast to light microscopes, electron microscopes use a beam of electrons instead of a beam of light. Not only does this allow for higher magnification and, thus, more detail, it also provides higher resolving power. The method used to prepare the specimen for viewing with an electron microscope kills the specimen. Electrons have short wavelengths (shorter than photons) that move best in a vacuum, so living cells cannot be viewed with an electron microscope.
Answer:
Electron microscope
Explanation:
" Living things cannot be viewed with an electron microscope because the process to prepare them for viewing would kill them! " in the paragraph it says this , and i just took the unit 1 test . Its 100% electron microscope .
caleb has a double row of eyelashes that he inherited from his mother as a dominant trait. His maternal grandfather is the only other relative to have the trait . veronica, a women with normal lashes, falls madly in love with Caleb, and they marry. Their first child , molly, has normal eyelashes. Now veronica is pregnant again and hopes they will have a child with double eyelashes. what chance does their child have of inheriting a double row of eyelashes
Answer:
1/2 or 50%
Explanation:
From the illustration, the double row of eyelashes is a dominant trait.
Caleb inherited his double row eyelashes from his mother, meaning that Caleb is heterozygous.
Assuming that the allele for double eyelashes is represented by D, Caleb's genotype would be Dd.
Veronica has normal eyelashes, her genotype would be dd.
Dd x dd
Progeny Dd Dd dd dd
Probability of double eyelashes = 1/2 or 50%
Probability of normal eyelashes = 1/2 or 50%
Hence, the chance of their child inheriting a double row of eyelashes is 1/2 or 50%.
Personal eyeglasses provide as much protection as a none of the above. b splashproof chemical goggles c a face shield. d safety glasses.
Answer:
the answer is b. safety glasses
8. How might chemical weathering make it easy for mechanical weathering to occur?
Answer:
Chemical weathering softens rock making it easier to break by mechanical weathering.
Explanation:
Some snakes have special sensory organs that detect the infrared region of the electromagnetic spectrum. Compared with human vision, these snakes can sense electromagnetic waves that have:
a lower frequency and a shorter wavelength.
a higher frequency and a longer wavelength.
a lower frequency and a longer wavelength.
a higher frequency and a shorter wavelength.
Answer:
The correct answer is - a lower frequency and a longer wavelength.
Explanation:
According to the question and generally, some snakes have special organs that can sense or detect the Infrared region of the electromagnetic spectrum. However, human eys can not see or detect the infrared region.
Infrared waves have a longer wavelength and lower frequency in comparison of visible light, visible light can be seen by human eyes.
Thus, the correct answer is - a lower frequency and a longer wavelength.
Answer:
a lower frequency and a longer wavelength.
Explanation:
For certain medical procedures, body parts (such as organs and tissues) may require transportation over great distances. Certain procedures must be followed in order for the body parts to remain usable for the patient. During a pancreatic transfer, specialists have to be mindful of trypsin (an enzyme located in the pancreas). If the trypsin is functioning normally during such transfers, early decay of the pancreas will occur. If the pancreas decays, the transplant will be unsuccessful. Examine the graph below. Which of the following procedures would be necessary for a team of clinical specialists to follow in order to ensure a successful transplant?
Answer:
Hello. You did not add the necessary graphics for this question to be answered. However, I can help you by showing that one of the procedures that a medical team can do to inhibit the action of trypsin in the deorization of the pancreas is the use of ulinastine.
Explanation:
During the process of isolating a pancreas to be transported, the use of ulinastine is shown to be efficient for inhibiting trypsin, which promotes deterioration of the pancreas. Unilastine is also an anti-inflammatory, which will bring even more benefits with its use.
Thus, with the use of a ulinastine solution, the pancreas has more time to reach the transplant site and promote successful surgery.
What are sunspots?
A. storms on Earth’s surface
B. storms on the Sun’s surface
C. hot gases on the Sun
D. holes in the Sun
If i´m incorrect please correct me, Thank you!
The area that appears dark on the surface of the Sun is called sunspots. These are storms on the Sun's surface.
What is the cause of sunspots?Sunspots are caused due to disturbance in Sun's magnetic field heading up to the photo-sphere.
Sunspots can last from few days to few months and eventually decay. They can expand or contract as they move across the Sun's surface.
Thus, the correct option is B.
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Which of the following is a function of a carbohydrate
Answer:
One of the primary functions of carbohydrates is to provide your body with energy. Most of the carbohydrates in the foods you eat are digested and broken down into glucose before entering the bloodstream.
10 In a solution of 10% sugar and 90% water, I have placed a cell that contains 30% sugar and 70 % water. Which of the following describes OSMOSIS in this situation? A. Water moves into the cell B. Water moves out of the cell C. Water moves in and out equally D. Water does not move in the above situation. 11 Which of the following terms would best describe the effects on that cell? A. Apoptosis B. Crenation C. Lysis D. No effect of the cell
Answer:
A. Water moves into the cell
C. Lysis
Explanation:
Water moves into the cell due to high concentration of solutes i. e. sugar. If a cell has low concentration of solute than outside environment so the water moves outside toward more solutes while when the concentration of cell has more solute than external environment so water moves inside the cell towards more solute through the process of osmosis. Due to more diffusion of water into the cell, the Lysis will occurs in which the cell will burst due to expansion of its area.
In garden pea plants, purple flowers (P) are dominant to white flowers (p), and full pod shape (F) is dominant to constricted pod shape (f). If two heterozygous plants (PpFf) are crossed, what are the potential genotypes and phenotypes that can be expected in the offspring? What is the genotype of the parents? _________________ X ____________________ What are the gametes for each p
Answer:
The phenotypes are as follows
Purple, full- 9
Purple, constricted- 3
White, full- 3
White, constricted- 1
Genotype of parents are PpFf, each produce the following gametes: PF, Pf, pF and pf.
Explanation:
This is a dihybrid cross involving two distinct genes. One coding for flower color and the other for pod shape. The allele for purple color (P) is dominant over the allele for white color (p) while the allele for full pod (F) is dominant over the allele for constricted pod (f).
In a cross between two heterozygote parents i.e. PpFf × PpFf, each parent will produce the following gametes: PF, Pf, pF and pf. Using these gametes in a punnet square (see attached image) the following 16 offsprings will be produced in a phenotypic ratio: 9:3:3:1
Purple color, full pod- 9
Purple color, constricted pod- 3
White flower, full pod- 3
White flower, constricted pod- 1
What is the definition of a protein-binding site?Choose one:A. the region of the cell where proteins are assembled based on information from the genetic codeB. a pocket on a protein where a small molecule can be covalently attached and thus modify the proteinC. the portion of a protein that attaches to the cell membrane and tethers the protein as a peripheral membrane proteinD. any region on a protein’s surface that interacts with another molecule through noncovalent bonding
Answer: I think this is C
Explanation:
Plasma protein binding refers to the degree to which medications attach to proteins within the blood. A drug's efficiency may be affected by the degree to which it binds. The less bound a drug is, the more efficiently it can traverse cell membranes or diffuse.
The protein-binding site is any region on a protein’s surface that interacts with another molecule through noncovalent bonding. The correct option is D.
Why is protein-binding site important?A binding site is any region of a protein's surface that can interact with another molecule via noncovalent bonds. A protein can have binding sites for many different molecules, both large and small.
Protein binding is most clinically important in antimicrobial therapy, where a high degree of protein binding acts as a drug "depot,".
It allow for a longer duration of time the drug concentration remains above the bacterial minimum inhibitory concentration, thereby increasing antimicrobial efficacy.
Ligand binding sites are involved in a variety of protein biological processes, including signal transduction and enzymatic activity.
Understanding the properties of binding sites is critical in drug development and protein engineering.
Thus, the correct option is D.
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Babies with very low or very high birth weight are less likely to survive. The graph shows the percentage of babies born at different weights.Which statement is a valid claim that could be made using the data in the graph
Answer:
most babies are born at 8 -8.5 pounds
Which contribution to the body of scientific knowledge is most recent?
the development of the lever
the discovery of the structure of DNA
the discovery of electricity
the theory of evolution
Answer:
Hi there!
Your answer is B. The discovery of the DNA structure
Explanation:
In 1953 James Watson and Francis Crick discovered the double helix structure to DNA!
Answer:
B. The discovery of the DNA structure
Explanation:
