Answer:
A
Explanation:
I took this AGES ago mate, i'm hoping ya catch up!
Answer:
A
I took the Test
which of the following is not an example of homeostasis? A. after plunging into icy cold water Gary's core body temperature rapid drops. B. while exercising Julie has heart rate and breathing increase the balance to increase oxygen used by her muscle cells. C.on a hot day Martin doesn't drink very much water heater kidneys respond by removing very little water from his blood resulting in yellow concentrated urine. D.after eating a candy bar April's pancreas secretes insulin causing extra blood sugar to be removed PLZ ANSWER QUICKKKK
All the options except A are examples of homeostasis, where the body maintains internal stability. In option A, Gary's temperature drops rapidly due to the icy water, which is a failure to maintain homeostasis.
Explanation:Homeostasis refers to the process of maintaining a stable internal environment within an organism, despite the changes in external conditions. The body's various systems engage in a constant dance of adaptation and recalibration, keeping key factors like temperature, glucose levels, and water content steady. Failure to do so can lead to detrimental health effects, or in severe cases, possibly death.
Among the options you mentioned, A. 'after plunging into icy cold water Gary's core body temperature rapid drops' is not an example of homeostasis. This is because homeostasis involves maintaining internal equilibrium. In this case, Gary's body temperature is rapidly dropping due to the icy water, rather than being maintained at a stable level.
Option B, C, D describes the body's efforts to maintain stable heart rate, hydration, and blood sugar levels respectively – all of which are examples of homeostasis.
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How are the different types of Spectra created?
Different types of spectra are created through processes like emission, absorption, and continuous radiation.
Different types of spectra are created based on how light or electromagnetic radiation interacts with matter:
Emission Spectra: Emission spectra are produced when atoms or molecules emit light as electrons transition from higher to lower energy levels. When an external energy source, such as heat or electricity, excites the electrons within an atom or molecule, they move to higher energy levels. As they return to their ground states, they release energy in the form of specific wavelengths of light. Each element or compound has a unique set of emission lines or spectral lines, allowing scientists to identify the composition of substances and their energy levels.
Absorption Spectra: Absorption spectra are generated when matter absorbs specific wavelengths of light from a continuous spectrum. When light passes through a medium, such as a gas or a liquid, atoms or molecules within that medium can absorb photons with energies that match the energy differences between their electron energy levels. As a result, dark lines or bands, known as absorption lines, appear in the spectrum where light has been absorbed. Absorption spectra help identify the elements or compounds present in a sample and provide information about their energy levels.
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Herbicides are non-selective for what type of use?
O Golf courses
O Garden
O Yards
Industrial
Answer:
this is some useful info you could use!
Explanation:
Pre-emergent herbicides are used to stop the germination of plant seeds. A non-selective herbicide tries to kill most plants while a selective herbicide is designed to kill specific types of plants, usually grasses or broad leaf weeds.
But the answer is yards:::::::::
What breaks down and provides the body with glucose?
When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose. The stomach and small intestines absorb the glucose and then release it into the bloodstream.
just FYI you can look up these answers in google
what effect would the enzyme have on the amount of product made in 3 seconds?
Answer: I believe it should be increase. If that doesn’t work, let me know and I’ll correct it.
Explanation:
The effect that an enzyme would have on the amount of product made with time would be to increase it.
Basically, what enzyme does is to the lower energy barrier that reactants need to cross in order to get to products - the activation energy.
The similitude of using enzyme in a reaction is like using a shorter route to get to a destination. You gain time as compared to someone that used a longer route. Hence, your rate of reaction is increased.
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What is heat?
A. Temperature
B. Thermal energy
C. Electricity
D. Electromagnetic energy
how do you feel about using solar panels?
Which animal is an ectotherm? eagle turtle whale kangaroo
Answer:
Turtles are ectotherms.
DNA is also a ___________ ___________, which means it is composed of thousands of subunits called ________
A scientist was studying how a specific virus infects skin cells. In a lab, the scientist exposed a group of skin cells to the virus. Over
time, the number of living skin cells in the group decreased.
Which statement explains why this change occurred?
A.
Viruses reproduce before they enter cells, and the new viruses infect these cells.
B.
Viruses eat living cells to provide energy for reproduction.
C.
Viruses reproduce inside of their host cells, eventually killing the cells.
D.
Viruses reproduce outside of cells, creating harmful chemicals that kill the cells.
Carbon cycles in nature can be balanced, so the concentration of CO2 in the atmosphere stays relatively constant. However, if the total amount of trees and other plants increased worldwide, CO2 levels in the atmosphere would decrease. Explain why.
Answer:
During Northern Hemisphere spring and summer months, plants absorb a substantial amount of carbon dioxide through photosynthesis, thus removing it from the atmosphere and change the color to blue (low carbon dioxide concentrations).
I honestly don't know if this helps or not
Which of the following best describes Earth's orbital position in our solar system?
A. Outside of the gas giants
B. An inner planet
C. An outer planet
D. Outside of three smaller planets
Answer:B: the inner planet
Explanation:
Earth as an inner planet best describe Earth's orbital position in our solar system. (Option B)
Earth's orbital position in the Solar SystemEarth is the third planet from the sun after Mercury and Venus and orbits at an average distance of 93 million miles, meaning that it takes sunlight about eight minutes to arrive. As you move outward from the sun, the planets are spaced increasingly farther apart. Jupiter is about five times as far from the sun as earth, while Neptune is some thirty times farther.
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Which adaptation would be beneficial to a desert plant?
A. Fleshy leaves that store water
B. Porous leaves that lose water easily
C. Vines that grow up tall trees
D. Flat leaves that maximize light absorption
Which two sentences describe ways that populations might be harmed by floods?
A. Organisms that thrive jn moist conditions have more places to live
B. Animals who’s shelters are on land drown while the land is under water
C. Plants that were living in soil that is washed away are killed
D. Animals that lay eggs in water have more chance to reproduce.
Answer:
I'm not sure but in my condition the answer is a
Answer:
B. Animals who’s shelters are on land drown while the land is under water
C. Plants that were living in soil that is washed away are killed
5) Why is mimicry a helpful adaptation?
6) Why might a predator stay away from an animal with warning coloration?
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why do sperm cells need energy?
Sperm cells need energy primarily to move towards and fertilize the egg. This energy is provided by ATP, produced by mitochondria densely packed in the sperm's midpiece. Sperm's functionality and survival depend on this energy, especially during the journey within the female reproductive tract.
Explanation:Sperm cells require energy for several reasons. As highly specialized cells, they are designed to travel a significant distance to reach and fertilize an egg. The midpiece of a sperm is densely packed with mitochondria, organelles known as the powerhouses of the cell, which produce adenosine triphosphate (ATP) — the energy currency of the cell. This energy is crucial for the motion of the sperm’s tail, a long flagellum, allowing it to propel itself forward effectively.
Considering that sperms are minuscule, and so many are produced daily, the speed at which they must move to reach the oocyte is comparable to a human walking briskly. This is a remarkable feat and demands vast amounts of ATP. Additionally, during capacitation, fluids in the female reproductive tract further prepare the sperm for fertilization, which also requires energy.
Which snake adaptation best helps it to survive in its community?
Why is temperature important to ocean water? HELP ASAP WILL MARK BRAINLIEST!!!!
What cell type must enter a female clams body in order for glochidia to form
Answer:
Sex cells or reproductive cells
Explaination:
Freshwater clams are hermaphrodites and produce both eggs and sperm.
So the freshwater clams reproduce by releasing their reproductive cells (sex cells or gametes) into the water column. The sex cells then enters the female clams body and undergo internal fertilization and produces glochidia. The glochidia then released in the surrounding water.
Hence, the sex cells are responsible for the reproduction of female clams.
2. If 28% of the bases in a DNA strand are guanine, what percentage are thymine?
3. DNA replication is semi-conservative. What does this mean?
4. Match the DNA replication enzyme with Its correct function:
1.__ Helicase
2.__ primase
3.__ DNA polymerase
a. Adds new DNA nucleotides
B. Unwinds the DNA strand
C. Add an RNA primer to signal where replication should begin
Answer:
2) According to Erwin Chargaff's rule:
* Purine adenine is equimolar with pyrimidine thymine
* Purine guanine is equimolar with pyrimidine cytosine
i.e. A = T & G = C
So, If G = 28% then C = 28%
Total bases = 100%
A + T + G + C = 100%
2T + 2G = 100%
2T + 56% = 100%
2T = 100% - 56%
2T = 44%
T = 22%
Percentage of thymine = 22%
3) Watson and Crick proposed a scheme for DNA replication that suggest that the two stands of DNA would separate and act as template for the synthesis of complementary strands. After the completion of replication, each DNA molecule would have one parental and one newly synthesized strand. This scheme was termed as semi-conservative DNA replication.
4) 1. Helicase - B. Unwinds the DNA strand
2. Primase - C. Add an RNA primer to signal where replication should begin
3. DNA polymerase - A. Adds new DNA nucleotides
A scientific theory can be defined as a well-supported and widely accepted explanation of nature. According to this definition, which statement describes a scientific theory.
A) The Earth is older than 100,000 years.
B) Matter cannot be created or destroyed.
C) For every action, there is an equal and opposite reaction.
D) Natural selection is one of the mechanisms by which evolution occurs.
PLEASE HELP! I AM MARKING BRAINLIEST!
Answer:
I specifically think A is the answer ur looking for. I mean take real smarts to know that right ?
UL
Virus
1. Disease can be caused by viruses, bacteria,
fungi, parasites, or toxic chemicals. Which of these
diseases is the result of toxic chemicals?
O A. Polio
B. Impetigo
O c. Malaria
D. Emphysema
A scientist has a very small sample of DNA. To analyze the DNA, which would be the MOST USEFUL first step for the scientist to follow?
A. Use restriction enzymes to make multiple copies of the DNA.
B. Use the polymerase chain reaction (PCR) to make multiple copies of the DNA.
C. Transfer the DNA into bacteria, and allow the bacteria to be replicated many times.
D. Use restriction enzymes to cut the DNA into many small pieces.
The correct answer is option (B).The most useful first step for analyzing a very small DNA sample is to use the Polymerase Chain Reaction (PCR) to make multiple copies of the DNA. PCR allows for rapid amplification of DNA, providing sufficient quantities needed for subsequent analyses like restriction enzyme digestion and gel electrophoresis.
To analyze a very small sample of DNA, the most useful first step is to use the Polymerase Chain Reaction (PCR). PCR is a widely used technique in molecular biology that permits rapid amplification in the number of copies of specific DNA sequences. This method follows the principles of DNA replication, allowing for the exponential increase of DNA in a short period to generate large quantities necessary for analysis, making it extremely useful in various applications such as research, forensic investigations, and clinical diagnostics.
Restriction enzymes are used to cut DNA into pieces based on specific sequences, which can then be analyzed using gel electrophoresis. However, without enough copies of DNA, restriction enzyme digestion is not viable. Inserting DNA into bacteria is another method of DNA amplification but is more time-consuming compared to PCR.
The picture represents a lipid before it undergoes the process of digestion. The chains that are broken during the process of digestion are known as:
sugar
fatty acid
nucleic acid
complex carbohydrate
Answer:
Fatty acid chains
Explanation:
A Triglyceride molecule is made up of 3 fatty acid chains and 1 glycerol molecule held together by ester bonds.
Digestion of lipids using lipases hydrolysed the ester bonds to release 1 molecule of glycerol and 3 molecules of fatty acid chains.
Uri tests a material and determines
that it is a mineral. Which of these
observations supports his
conclusion?
The material was found underground.
The material was not a solid.
The material was made of crystals.
The material was heavy.
Answer:
Explanation:
The properties of a mineral include
A definite chemical composition and crystal structure
Created through Inorganic processes
Solid
These are the main differences between rocks and minerals
Photosynthesis equation?
Answer:
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
Explanation:
Carbon dioxide + water + energy from light produces glucose and oxygen.
Answer:
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.
Explanation:
1. Explain, in your own words, the importance of recycling cellular material instead of
just throwing it away. In your response, relate recycling by the lysosome to
recycling plastic products.
please answer asap and with more than one sentance
Answer:
By recycling, it is possible to save a significant amount of energy that would otherwise be used to synthesize cellular structures.
Explanation:
Similarly to the function of lysosomes, the recycling process of plastic can help to save energy. The lysosomes are organelles that contain lytic enzymes that help to degrade cellular components, which is a necessary step before recycling these structures.
40 POINTS AND BRAINLIEST FOR THE FIRST RIGHT ANSWER
Which electromagnet is the strongest?
number 3 is the strongest electromagnet
Answer:
The second one
The diagram illustrates one method of genetic recombination.
A paternal and maternal gene cross-over.
Which method of genetic recombination is illustrated in the diagram?
a.)crossing over
B.)independent assortment
c.)fertilization
d.)tetrad formation
Answer:
A cross over
Explanation:
hope that helped
Answer:
A. crossing over
Explanation:
A population of ground squirrels lives in underground burrows several miles from an ocean shore. If a hurricane strikes the shore, which effect of the hurricane would probably do the most damage to the squirrel population?
Answer:
flooding
Explanation:
The hurricane brings in enormous amounts of rainfall with it, often resulting in flooding. The ground squirrels in this scenario live relatively close to the ocean shore. They live in burrows, spending big portion of their time in them, as well as having their young ones sheltered in them. The heavy rainfall and the flooding of the area will result in filling the burrows with water. The damage for the population of ground squirrels will be enormous, with their young ones all drowning for sure, and the majority of the adults getting drowned as well, or maybe even all of them. Hope this helps!!!!!