Answers
Answer:
B. Photosynthesis occurs in chloroplasts.
Explanation:
Related Questions
The rate at which the concentration of a drug in the bloodstream decreases is proportional to the concentration at any time t. Initially, the concentration of the drug in the bloodstream is C0 g/mL. What is the concentration of the drug in the bloodstream any time t
Answers
Answer:
[tex]C(t) = C_oe^{-kt}[/tex]
Explanation:
From the given information:
At any given time (t), let c(t) represent the concentration of the drug present in bloodstream.
Deriving the equation:
[tex]\dfrac{dC}{dt}[/tex] decrease proportionally to Concentration C
i.e
[tex]\dfrac{dc}{dt} \alpha - C[/tex]
[tex]\dfrac{dc}{dt} = -k C[/tex]
[tex]\dfrac{dc}{c} = -k dt[/tex]
[tex]\int \dfrac{dc}{c} = -k \int dt[/tex]
㏑(C) = -kt + λ
where,
λ is the integration constant.
Integrating at t = 0, concentration of blood = Co g/mL
C(0) = Co
㏑(C₀) = 0 + λ
λ = ㏑(C₀)
From ㏑(C) = -kt + λ
㏑(C) = -kt + ㏑C₀
㏑(C) - ㏑C₀ = -kt
[tex]\dfrac{C}{C_o} = e^{-kt}[/tex]
[tex]C(t) = C_oe^{-kt}[/tex]
∴
The concentration of drug in blood at any time t is:
[tex]C(t) = C_oe^{-kt}[/tex]
What is the value of y in the equation 5x + 2y = 20, when x = 0.3? 0 2.5 2.8 O 9.25 O 10.75
Answers
Answer:
O 9.25
Explanation:
The following mathematical equation is given in this question:
5x + 2y = 20
Using this equation, we're asked to find the value of y when x = 0.3. Hence, we substitute 0.3 for x in the equation as follows:
5x + 2y = 20
5 (0.3) + 2y = 20
1.5 + 2y = 20
Collect like terms
2y = 20 - 1.5
2y = 18.5
Divide both sides by 2
y = 18.5/2
y = 9.25
Therefore, y = 9.25 when x = 0.3
What effect can groundwater have on land?
A.) Increase in ground altitude
B.) Formation if sinkholes
C.) Decrease in oil salinity
D.) Formation of wetlands
Answers
Edited response:
B) Formation of sinkholes
Explanation:
"Groundwater pumping for urban water supply and for irrigation can produce new sinkholes in sinkhole-prone areas"
8. Why are the proteins produced by a GMO crop monitored and evaluated? O A. To determine whether the organism will cause an allergic reaction O B. To evaluate whether the Bt toxin is produced O C. To measure hormones present in dairy products O D. To examine the need for additional fertilizers
Answers
Answer:
C. To evaluate whether the Bt toxin is produced
Explanation:
Mark me brainliest!!!!
To determine whether the organism will cause an allergic reaction.
Proteins have roles as toxins, anti nutrients, or allergens, which have great impact on human health.What is GMO?A genetically modified organism (GMO) is an animal, plant, or microbe whose DNA has been altered using genetic engineering techniques.Bio fortified GM crops have been adopted, increasing micronutrient availability.GMO foods are as healthful and safe to eat as their non-GMO counterparts.Genetically modified organisms (GMOs) are produced using scientific methods that include recombinant DNA technology and reproductive cloning.To know more about GMO here
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The_____
is like the ______
system of
the human body because they both_________.
Answers
Answer:
The cell wall is like the integumentary system of the human body because they both protect the interior from the external environment.
Explanation:
in a paragraph explain what effect very small pores and their diffusion rate would have on the workings and mechanism of a cell
Answers
Answer:
So if the size of the pore is small then the rate of the diffusion will be very slow as the molecules will move from high concentration to low concentration in very slow rate.
Explanation:
I hope it helps you
Chapter 1
1. Which of the following is an example of homeostasis?
a. regulation of blood CO2 level
b. regulation of blood glucose level
c. regulation of body temperature
d. all of the above
2. Which statement is a correct description of negative feedback control system?
a. It is stimulatory
b. It is inhibitory
c. It amplifies the change that is occurring
3. Positive feedback control system:
a. Are stimulatory
b. Tend to produce destabilizing effects and disrupt homeostasis
c. Produce an action that is opposite to the change that activate the same system
d. Both "a" and "b" are correct
4. The lungs are ____________ to the liver:
a. distal
b. lateral
c. inferior
d. superior
5. The heart is ___________ to the lungs:
a. superior
b. dorsal
c. medial
d. lateral
6. A vertical plane through the body dividing it into right and left is termed:
a. sagittal
b. lateral
c. transverse
d. frontal
7. A patient sustains severe blunt trauma to the left upper abdomen and requires surgery. The body organ most likely to be involved is the ____________
a. appendix
b. gallbladder
c. spleen
d. urinary bladder
8. Cytology is the study of:
a. tissues
b. organisms
c. cells
d. all of these are correct
9. A term that means nearer the attached end of a limb is:
a. medial
b. lateral
c. distal
d. proximal
10. Coronal plane:
a. Divides the body into anterior and posterior portions
b. Divides the body into upper and lower portions
c. Divides the body into left and right portions
d. Is also called horizontal plane
Answers
Answer:
homeostasis regulate body glucose
Which is the word equation for photosynthesis?
Answers
Answer:
carbon dioxide + water + sunlight + chlorophyll → glucose + oxygen
Explanation:
I hope this helps in any way :)
do roots have guard cells and therefore stomata?
Answers
Answer:
Explanation:
Besides, plastids of the root guard cells (GCs) do not differentiate into chloroplasts but function solely as amyloplasts. Root stomata have a short life span. During rapid and intense root growth, GCs cannot keep pace with the elongation of their neighbouring rhizodermal cells
Which of the following is not true regarding the establishment of a neuron's resting membrane potential?
a. Resting membrane permeability to Na+ is very low.
b. Ion pumps in the plasma membrane eject sodium ions as fast as they cross the membrane.
c. Electrical forces do not push sodium ions into the cell.
d. Chemical and electrical forces both favor sodium ions entering the cell.
e. The chemical gradient for potassium ions tends to drive them out of the cell.
Answers
Answer:
c
Explanation:
account for movement in metazoan
Answers
Answer:
They are able to move water through their bodies through the coordinated beating of flagellated cells that line their pores.
Explanation:
3. Which organs are responsible for
protecting the body? How?
Answers
Answer:
Primary lymphoid organs: These organs include the bone marrow and the thymus. They create special immune system cells called lymphocytes. Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel)
Explanation:
hope this helps
The thymus is located behind the breastbone above the heart. This gland-like organ reaches full maturity only in children, and is then slowly transformed to fatty tissue. Special types of immune system cells called thymus cell lymphocytes (T cells) mature in the thymus. Among other tasks, these cells coordinate the processes of the innate and adaptive immune systems. T cells move through the body and constantly monitor the surfaces of all cells for changes.
Lymph nodes are small bean-shaped tissues found along the lymphatic vessels. The lymph nodes act as filters. Various immune system cells trap germs in the lymph nodes and activate the creation of special antibodies in the blood. Swollen or painful lymph nodes are a sign that the immune system is active, for example to fight an infection.
The bowel plays a central role in defending the body against germs: More than half of all the body's cells that produce antibodies are found in the bowel wall, especially in the last part of the small bowel and in the appendix. These cells detect foreign substances, and then mark and destroy them. They also save information about the substances in order to be able to react more quickly the next time. The large bowel also contains harmless bacteria called gastrointestinal or gut flora. Healthy gut flora make it difficult for germs to spread and enter the body.
Mucous membranes support the immune system in other parts of the body, too, such as the respiratory and urinary tracts, and the lining of the vagina. The immune system cells are directly beneath the mucous membranes, where they prevent bacteria and viruses from attaching.
The tonsils are also part of the immune system. Because of their location at the throat and palate, they can stop germs entering the body through the mouth or the nose. The tonsils also contain a lot of white blood cells, which are responsible for killing germs. There are different types of tonsils: palatine tonsils, adenoids and the lingual tonsil. All of these tonsillar structures together are sometimes called Waldeyer's ring since they form a ring around the opening to the throat from the mouth and nose.
There is also lymphatic tissue on the side of the throat, which can perform the functions of the palatine tonsils if they are removed.
The spleen is located in the left upper abdomen, beneath the diaphragm, and is responsible for different kinds of jobs:
It stores various immune system cells. When needed, they move through the blood to other organs. Scavenger cells (phagocytes) in the spleen act as a filter for germs that get into the bloodstream.
It breaks down red blood cells (erythrocytes).
It stores and breaks down platelets (thrombocytes), which are responsible for the clotting of blood, among other things.
There is always a lot of blood flowing through the spleen tissue. At the same time this tissue is very soft. In the event of severe injury, for example in an accident, the spleen may rupture easily. Surgery is then usually necessary because otherwise there is a danger of bleeding to death. If the spleen needs to be removed completely, other immune system organs can carry out its roles.
Select all the correct answers.
Which three statements provide reasons that scientists are considering renewable sources of energy?
1. Most renewable resources are clean and nonpolluting.
2. Renewable resources can be replenished.
3. Renewable resources are conventional resources.
4. Most renewable resources are easily available in nature.
5. All renewable resources are cost effective.
Answers
The three statement related to the renewable sources of energy should be clean & non-pollutting, conventional resources, and available in nature.
What is renewable sources of energy?It is the energy that should be collected from the renewable resources that should be replenished on the timescale based on the human.
It involved the sources like the sunlight, wind, rain, etc.
Therefore, based on this, we can conclude that the option 1, option 3, and option 4 is correct.
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What would you say to a friend that says "GMOs are dangerous to human health"?
Answers
Everything have both positive and negative impacts
Gmos( genetically modified organisms ) are good and dangerous both
if we carefully practice genetic engineering then it is beneficial but if we use it only for our income source without caring about its worst effects then its very dangerous
PLEASE HELP THIS IS DUE NOW
will mark brainliest!
10 points
Answers
Answer: B, D
Explanation: BrainEList me
Please brainliest me :)
Name this tube like cavity? I think it’s the Esophagus.
Answers
Answer:
esophagus
Explanation:
your answer is right
Answer:
esophagus,
Explanation:
You are correct in your original answer.
1. Compare a positive feedback loop and negative feedback loop for homeostasis. Body temperature is an example of a negative feedback loop. Imagine that body temperature was regulated as a positive feedback loop and explain what would happen.
2. Look at the figure of the brain lobes in your textbook. Do you think the chimpanzee would have the same brain lobes as that of a human? How might the chimp brain differ from a humans? Keep in mind the chimpanzee is the humans’ closest relative.
Answers
Answer:
Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points. In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
Explanation:
Chimpanzee lobes may be smaller than human lobes
In a changing environment, which of the following would be beneficial for the survival of a species?
O offspring with a variety of phenotypes
O offspring with little variation in phenotype
O offspring that closely resemble their parents
O offspring that are adapted to a specific environment
Answers
The last one
Explanation:
Offspring that are adapted to a specific environment is the beneficial for the survival of a species.
What is species?A species is an organism's fundamental unit of classification, taxonomic rank, and biodiversity. The biggest group of organisms in which any two individuals of the right sexes or mating types can conceive a fertile offspring, usually by sexual reproduction, is referred to as a species.
A species can also be identified by its karyotype, DNA sequence, anatomy, behavior, or ecological niche. In addition, since fossil reproduction cannot be studied, paleontologists use the chronospecies idea.
There are between 8 and 8.7 million different species of eukaryotes, according to the most recent accurate estimate.
All species are given a two-part name, or "binomial," with the exception of viruses.
Therefore, Offspring that are adapted to a specific environment is the beneficial for the survival of a species.
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The reason that the nailbed appears pink is the president of a large number of Melanocytes n the underlying dermis
Answers
Answer:
paki sagot po ito hahahaha
What does a chromosome consist of?
A. Tightly wound DNA only.
B. Loosely dispersed DNA and proteins.
C. Tightly wound DNA and proteins.
D. Loosely dispersed DNA.
Answers
Answer:
C
Explanation:
So, there are 2 different forms that DNA can be found in.
The more common form, where the DNA is loosly scattered.
There is a less common form, however, only found during cell division, which is a compacted form. The DNA is tighly wound in this case.
In the case of chromosomes, DNA is tightly pakced, and not loose.
Now, do they are do they not have protiens?
Well, heres another question, how does the DNA get compacted?
It has to wrap around histone protiens.
The logn strands of DNA wrap around many histone protiens, until the full length of DNA has been compacted.
So to answer the question, yes, there are protiens found in chromosomes(specificly histone).
This means the answer must be C, since chrosomes are both tightly bound, and contain protein.
Scientists have observed many close similarities in the DNA sequences of whales and dolphins. This observation is evidence of which idea?
Answers
Dolphins, porpoises, and whales all are in the group of marine animals known as cetaceans. Scientists saw many close similarities in the DNA sequences of whales and dolphins. This observation is proof of whales and dolphins both evolved from a relatively recent common ancestor.
What is cetaceans?Cetacean are members of an aquatic group of mammals commonly known as whales, dolphins, and porpoises.
The ancient Greeks stated that cetaceans can breathe air, give birth to live young, produce milk, and have hair. These are all features of mammals.
As the scientist observed the close similarities in the DNA sequences of both the whales and the dolphins. This shows the proof that whales and dolphins both evolved from a relatively recent common ancestor.
Thus, this is the evidence to reveal the reason behind the similarities in DNA sequences in whale and dolphin.
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Which of the following are examples of natural pollution? Choose all that apply.
car exhaust
volcanoes
pesticides
trash
forest fires
floods
Answers
pesticides
trash
forest fires
The examples of natural pollution are Volcanoes, Forest fires, and floods.
What do you mean by Pollution?Pollution may be defined as the presence of any unwanted or contaminated substances in the atmosphere.
Car exhaust, pesticides, and trash are examples of artificial pollution.
Volcanoes release certain poisonous gases which are harmful to environment. Flood carries contamination like pesticides, chemicals, sewage waste, etc.
Forests fire are responsible for the increase of carbon dioxide in the environment.
Therefore, examples of natural pollution are Volcanoes, Forest fires, and floods.
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HELP! I CANT FIND THIS IN TEH INTERNET!
Answers
Answer:
Met-Ser-Lys-Val-Phe
so none of the above
Explanation:
Answer:
Ah ok. Sorry this is due to what its called, not what it is.
Explanation:
This is a table of the MRNA that is transcribed to make protiens.
The UCAG found on the graph are the different RNA bases.
A single base codes for a single part of a protien.
A codon is made up of 3 base pairs. A single codon codes for a protien.
So lets look at the first 3 bases - AUG
This looks like MET
So, let me show you how I found this:
The first base pair is A, looking at the left 4 letters, we see is the third row down.
The second base pair is U, looking at the top, we see is this first row.
Now we know its the third row down, and the first one to the left.
So now we have 4 possible protiens.
To find the exact one, use the third base pair, which is G. This is the bottom of the mini row found in the right side.
Doing this, we find that MET is the protien.
To be honest I dislike this table, so I will be using the one attached below.
Anyway, this MET protient removed option B.
Next we have Codon CUC
Looking at my graph below, I see that CUC codes for LEU.
This removes ooptions A and D, leaving C.
But now we need to check wether it is C or none of the above.
Again, I take codon AAG, and find lys. This is in anser C.
I take codon UGC, and find cys. This is in answer c.
Finally, I take codon UUC, and find PHe. This is answer c.
So C is your answer.
Hope this makes sense and helps!
I personally find my graph easier to use, and fi you agree, then I suggest you use it!
Es el nombre que se le da a un cuerpo celeste dentro de su trayectoria
Answers
aaaaaaaaaaaaaa
The development of vascular tissues helped plants become more successful
on land by
A. enabling gametes to live longer without a water supply
B. making the conversion of sunlight to sugar possible
C. causing them to become sporophytes
D. allowing water to move throughout a plant within its body
Can y’all please assist me.
Answers
Why must living organisms reproduce?
Answers
Answer:
reproduction it's important for the survival of all living organisms
Answer:
Reproduction is necessary for the continuation of the generation of particular species rather than the species extinct from the earth. It is also a source of recombination.
Explanation:
Explain how in glycolysis that the spitting of one gluclose molecule results in 4 ATP but there is only a net gain of 2 ATP
Answers
HELPPPPPP PLEASEEEEE ILL GIVE BRAINLIEST AND POINTS!!!!
(you dont need to answer them all but at least help me with a couple)
1) Explain Uganda’s ABC program in the fight against HIV/AIDS
2) Why has the Ugandan government pushed Abstinence as a means of combating the spread of HIV/AIDS?
3) What risks are involved with the use of condoms in combating the spread of HIV/AIDS?
4) On a separate piece of paper, construct a population pyramid to illustrate the current age groups infected by HIV/AIDS in Uganda.
Answers
Answer:
1. Abstain, Be faithful, or, as a last resort, use a Condom. Within a few years, Uganda had developed what researchers call a "social vaccine" against HIV: cultural norms about sexual responsibility, preached in clinics and public schools, as well as churches and mosques.
3.When used correctly every time you have sex, condoms are the best way to prevent sexually transmitted infections such as HIV. They have a very low failure rate and are effective for all forms of sex.
Fat cells are expandable. How does this structure relate to a fat cell's function?
A) Fat cells store energy for the body to use later, so being
expandable would help with storage.
B) Fat cells burn energy quickly when other food source is available, so being expandable would help with the rapid burn.
C) Fall cells protect organs, so being expandable can help with cushioning.
D) Fat cells do not expand
Answers
Fat cells burn energy quickly when other food source is available, so being expandable would help with the rapid burn.
The relationship between the expandability of fat cells and a fat cell's function is ; ( A ) Fat cells store energy for the body to use later, so being expandable would help with storage.
Fat cells specialized for the storage of energy in human body is the Adipose tissue which can expand between 60 to 70% of the weight of the human body in response to changes in the energy balance of the body.
Adipose tissues store energy in form of triglycerides and in order to store more energy for later use the Adipose would need to be expandable to accommodate the required amount of energy.
Hence we can conclude that the relationship between the expandability of fat cells and a fat cells' function is Fat cells store energy for the body to use later, so being expandable would help with storage.
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A biochemist analyzes the DNA of an organism and determines that it is composed of 28% adenine nucleotides. Using this information, determine the amount of guanine nucleotides in this organism's DNA.
A.
28%
B.
32%
C.
22%
D.
44%
E.
There is not enough information provided to answer this question.
Answers
Answer:
C. 22
Explanation:
I just studied this last week