Answer:
A. Green after being placed in the light because the plant would remove CO2 by photosynthesis; yellow after being placed in the dark because the plant would release CO2 by respiration.
Explanation:
According to this question, Bromothymol blue (BTB) is a chemical that can be used as an indicator of the pH of a solution. The presence or absence of CO2 in a solution decreases or increases the pH of the solution respectively.
- BTB appears green in a neutral pH i.e. little CO2
- BTB turns yellow in a low pH i.e. high CO2
Plants, in the presence of light, will perform photosynthesis and use CO3 as a reactant while in the dark, will perform cellular respiration and release CO2 as a waste product. Hence, in this case where an aquatic plant was placed into a test tube and covered it to keep it air tight.
- When placed under light for 24 hours, the aquatic plant will undergo photosynthesis and remove CO2 from the solution to make the solution appear GREEN due to neutral pH.
- When placed in the dark for 24 hours, the aquatic plant will undergo cellular respiration and release CO2 into the solution making the solution appear YELLOW due to low pH.
HELP PLZZZ!!!......Which feature is created by wave erosion?
A)loess
B)delta
C)rill
D)stack
Answer:
the answer is d stack
Explanation:
A feature which is created by wave erosion is Stack. Thus, the correct option is D.
What is Wave erosion?Wave erosion can be defined as the waves which are creating a variety of landforms along with a shoreline. Sea cliffs generally occur when the waves erode rock, resulting in the high slopes formation. Wave energy results into production of erosional formations such as cliffs, wave cut platforms, sea arches, and the sea stacks. These all are features of wave erosion.
Sea wave erosion is accomplished primarily by the hydraulic pressure, the impact of waves that are striking the seashore, and through the abrasion that is wearing, grinding, or rubbing away by the friction by sand and pebbles that are agitated incessantly by the water and wave-cut platform.
Therefore, the correct option is D.
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What's the biggest animal in the world?
True or False? Many marine organisms depend on estuaries during at least some point of their life.
Answer:
False
Explanation:
It is false because it is not true.
Pls mark brainlist
Cellular respiration involves a reaction between glucose and oxygen to form_____
1: carbon dioxide
2: water
3: all of these
4: energy
Answer:
3. All of these
Explanation:
When the reaction of cellular respiration occurs, carbon dioxide and water is created while energy gets released.
Answer:
3: all of these
Explanation:
They actually form ATP, which is essentially energy. Byproducts are water and carbon dioxide. I would say all of these answers are true! Remember though, ATP (energy) is the main product while water and carbon dioxide are byproducts.
2. What information did Watson and Crick use for their model ?
Is there a scientific discovery in today’s world that has been overshadowed by popular belief? Explain.
What role do you think popular belief has on scientific discoveries?
GIVING BRAINLIEST TO THE PERSON WHO HELPS ME!
Answer: The history of science is also a history of people resisting new discoveries that conflict with conventional wisdom.
Explanation: When Galileo promoted Copernicus’ theory that the Earth revolves around the sun – counter to church doctrine about the Earth being the center of the universe – he wound up condemned by the Roman Inquisition in 1633. Charles Darwin’s theory of evolution – that new species develop as a result of natural selection on inherited traits – ran into opposition because it contradicted long-held scientific, political and religious beliefs. Alfred Wegener’s 1912 proposal that Earth’s continents move relative to each other – the theory of continental drift – was rejected for decades, in part because scientists held fast to the traditional theories they’d spent careers developing.
(sorry if i'm wrong )
:(
Which of the following is a natural resource that could be used up someday?
OA. sunlight
ОВ.
gas
OC. wind
D.
water
Answer:
gas
Explanation:
gas is a limited source that one day we might run out of so that's why tesla made cars that run on electricity
what are the cells that divide to produce gametes ?
Answer:
cells needed for sexual reproduction
Explanation:
so that during fertilization,the total number of chromosomes will be 46..
What are the cells that divide to produce gametes? germ cells
What is a gamete?It is the reproductive cell of an organism. They are haploid in nature.
How many types of gametes are there?There is a male gamete that is termed sperm (animals) or pollen grain (plants) and a female gamete that is termed ovum (animals) or egg (plants).
What kind of division occurs prior to gamete formation?Meiosis, or reductional division, occurs prior to gamete formation.
What is its significance?It ensures that after fertilization, the normal diploid number is maintained.
What kinds of cells undergo this division to produce gametes?Germ cells are the cells that produce gametes.
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For the Hill Reaction, you used DCIP dye at a concentration of 1x10-4 M. Our lab technicians have stock solution at a concentration of 100mM. Explain how you would make 100mL of the DCIP for you to use in a Hill Reaction lab.
Answer:
by diluting the DCIP dye stock solution 1000 times. It can be done by diluting 0.1 ml of the DCIP dye stock solution with 99.9 ml of distilled water
Explanation:
1 millimolar (mM) = 0.001 M
1.0 × 10⁻⁴ Molar (M) = 0.0001 M = 0.1 mM
Stock solution = 100 mM = 0.1 M
100 mM DCIP dye solution diluited 1000 times >> 0.1 mM = 1 x 10⁻⁴ M
- Which molecule synthesized by plants is a major source of chemical energy for
cellular processes in both plants and animals?
Answer:
I think Glucose
Explanation:
The picture shows a 3-D model of a virus called a bacteriophage. Bacteriophages can infect In what way are the bactenophage and E. coli alike? F. They contain antibodies. che produce by tutosis. H They have idenbekl genomes, The lack membrane-bound organelles. Students, dawanywhere on this slide!
Bacteriophage and E.coli are alike in the sense that they both lack membrane-bound organelles.
What are bacteriophage?Viruses that infect bacteria are called bacteriophage. The words bacteriophage mean "bacteria eater". Bacteriophages take over the machinery of host cells to produce copies of themselves and then destroy the host cell in the process.
Bacteriophages are composed of a supercoiled nucleic acid which is surrounded by a protein capsid.
A bacteriophage adheres to the surface the susceptible bacteria and injects its genetic material. This way they occupy the genetic machinery of the host and produce several copies of their own nucleic acid and also the protein capsid to surround it.
The result is the lysis of bacterial cell and release of thousands of bacteriophage viruses which are capable of infecting more bacteria in the same manner.
Bacteriophage are acellular structures lacking any membrane bound cell organelles. E.coli is a kind of prokaryotic bacteria which also lack membrane bound organelles.
Therefore, the correct option is D.
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When the partial pressure of O2 in venous blood is 30 Torr, the saturation of myoglobin with O2 is _______, while the saturation of hemoglobin with O2 is ______.
Answer:
0.91, 0.55
Explanation:
When the partial pressure of O2 in venous blood is 30 Torr, the saturation of myoglobin with O2 is 0.91 while the saturation of hemoglobin with O2 is 0.55
1) What is a sphincter muscle?
2)Name TWO places in the alimentary canal where sphincter muscles are found?
Answer:
1-A ring-shaped muscle that relaxes or tightens to open or close a passage or opening in the body.
2-Sphincters are specialized muscles that are located at the upper esophagus (upper esophageal sphincter (UES) and the gastroesophageal junction
Explanation:
Which characteristic of life distinguishes a fire and a flowering plant?
Answer:
crytaExplanation:
Answer:
The use of energy is a life characteristic that distinguishes fire from a flowering plant
Explanation:
When fire is put on, it makes use of oxygen and releases carbon dioxide and other gases. Burning of fire makes use of heat energy
Name a storage protein in our bodies.
Explain the function of this storage protein in our bodies.
Where is this storage protein found?
please help
Answer:
Storage proteins serve as biological reserves of metal ions and amino acids, used by organisms. They are found in plant seeds, egg whites, and milk. Ferritin is an example of a storage protein that stores iron. Iron is a component of heme, which is contained in the transport protein, hemoglobin and in cytochromes.
Explanation:
Hope this helps.
A Punnett square showing a cross between two cats is shown below.
HH x hh
h
h
H
H
In cats, short hair (H) is dominant to long hair (h).
Using the punnett square above, what is the probability the offspring from this cross
would have long hair (hh)?
0/4
O 1/4
2/4
Answer:
0/4
Explanation:
All offspring will have the presence of the dominant trait in their genes, which will make them have short hair.
They will all have the geneotype Hh.
They would need hh to have long hair.
What is the material that allows plants to capture energy from the sun? How many different types of this material are there? (site 1)
Answer: The molecules of chlorophyll contained in the chloroplasts absorb energy in the form of light from the sun. This is the process called Photosynthesis, by which plants convert energy from the sun. It is the process that allows plants to create organic molecules that they use as fuel.
Explanation:
During the process of photosynthesis, plants capture light energy and use it to convert water, carbon dioxide, and minerals into oxygen (released into the air) and glucose (stored in the plant and used as food). The photosynthesis process occurs in all plants and algae, as well as in some bacteria species.
1) Jupiter, mars, and_______ have wind
2) ______ means to wear away
3) at a wind farm they harvest_______ energy
Answer:
1)Earth
2)disappear
3)Solar energy
Explanation:
I am not sure but hope it helps let me know if its correct.
GOOD LUCK!
Woodpeckers peck trees to find food and make nests. What would happen if
most of the trees are cut down?
Answer:
the wood packers wouldnt have a home to live in anymore. the effect of this means that the habitat for them and other animals is destroyed and they could start to die and become endangered species. this is my opinion
Explanation:
This is from what I have learned so far
The crust of the earth sometimes will move along fractures called
fissures
earthquakes
faults
folds
Answer:
fault
Explanation:
the other ones dont even make sense
Question:
The crust of the earth sometimes will move along fractures called?
Answer:
Faults.
Living cells cannot use heat to provide the activation energy for biochemical reactions because
Do you believe that all of our actions can be attributed to the nervous system? Does your memory of an event trigger your responses? Why or why not?
Answer:
The nervous system is made up of all the nerve cells in your body. It is through the nervous system that we communicate with the outside world and, at the same time, many mechanisms inside our body are controlled. The nervous system takes in information through our senses, processes the information and triggers reactions, such as making your muscles move or causing you to feel pain. For example, if you touch a hot plate, you reflexively pull back your hand and your nerves simultaneously send pain signals to your brain. Metabolic processes are also controlled by the nervous system.
Explanation:
what is the role of the grana in chloroplast?
Answer:
Grana are the structures formed of coin like structures called thyllakoids that encloses chlorophyll for absorbtion of light essential for photosynthesis.And grana also give green colour to chloroplast.
Explanation:
What does geological time have to do with rocks?
Answer: Measuring the amounts of radioactive elements in rocks let scientists useabsolute dating to give ages to each chunk of time on the geologic time scale. For example, they are now able to state that the Jurassic began about 200 million years ago and that it lasted for about 55 million years.
Explanation:
Regarding the General Adaptation Syndrome, a short term response to stress in which glycogen is broken down to glucose is characteristic of the
The complete question is as follows:
Regarding the General Adaptation Syndrome, a short term response to stress in which glycogen is broken down to glucose is characteristic of the stage. 1) Alarm reaction 2) Stage of resistance 3) Stage of exhaustion
Answer:
The General Adaptation Syndrome or GAS explains the pattern of responses that body experinces in response to prompted by a stressor. There are three phases of this syndrome:-
1. Alarm reaction:
Sympathetic system and Hypothalamopituitary axis activated by the stress result in reaction by body.
2. Stage of resistance:
The hormone that is releases continusoly in this stage by the zona fasciculata layer of adrenal cortex is cortisol to maintain arousal.
3. Stage of exhaustion:
In abscence of enough blood sugar or glucose in the body, the body initiates breakdown of the glycogen (stored sugar in muscles mosty) with the help of hormone known as glucagon to covert it to glucose so that it can be used by the cellular respiration.
Automatic, or simple reflex, behavior is commonly referred to as
a. conditioned response.
b. spatial motivation.
c. unconditioned response.
d. operant conditioning.
Nietzsche believes that aesthetics is not as promising as religion.
true or false
Answer:
True
Explanation:
Believe in me
The belief of Nietzsche that aesthetics is not as promising as religion is definitely true.
What is Aesthetics?Aesthetics may be defined as a branch of philosophy that deals with the nature of beauty, art, and taste and with the creation and appreciation of beauty.
Religion is significantly a part of life that is different from the aspects of aesthetics, eating items, and thought processes.
Religion is something that deals with the concept of peace, joy, and prosperity among the people of the same or different religions.
Therefore, the belief of Nietzsche that aesthetics is not as promising as religion is definitely true.
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At which type of boundary do rocks react to tectonic stress and pull away leading to the formation of new crust?
Answer:
Divergent boundary.
Explanation:
At divergent plate boundaries, plates react to tectonic stress and move away from each other. Magma from the mantle hardens on the edge of each plate, forming new crust. I hope this helps!
How do human sex chromosomes keep the numbers of males and females roughly equal?
Answer:
It is simple mathematics , because sex chromosome XX are found in female and XY in male the remaining 22 pairs are the same in both.
Explanation:
I looked it up. I'm sorry if it's wrong.
Mutations leading to changes that can be inherited by the next generation have to be introduced at the _______ level.
Answer:
same
Explanation: