➜ When the rate of photosynthesis is equal to rate of respiration, it is called as compensation point.
The rate of liberation of O2 during photosynthesis is equal to the rate of liberation of CO2 during respiration.Thus, there is no net uptake of gases from the environment.Compensation point is usually reached at dusk and down and on a cloudy day.Why do you think that the shape of the different types of fatty acid molecules affects how easily they solidify?
Answer:
Fats are actually a type of lipid. Lipids are a major class of biochemical compounds that includes oils as well as fats. Organisms use lipids to store energy and for many other uses.
Lipid molecules consist mainly of repeating units called fatty acids. There are two types of fatty acids: saturated fatty acids and unsaturated fatty acids. Both types consist mainly of simple chains of carbon atoms bonded to one another and to hydrogen atoms. The two types of fatty acids differ in how many hydrogen atoms they contain.
Explanation:
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The shape of the types of fatty acid molecules has an impact on their solidification.
It should be noted that in the unsaturated fatty acid, there is at least a double bond in its string. The carbon atoms that are joined by the bonds lead to the change in their shapes.
While saturated fatty acids have a linear structure, the unsaturated fatty acids kink or bend in order to form double bonds within the chemical foundation.
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Which of the following statements about cell organelles is NOT true?
A. Chloroplasts contain chlorophyll and are the site of photosynthesis.
B. Many of the same organelles are located in both plant cells and animal cells.
C. The nucleus in an animal cell has a different primary function than in a plant cell.
D. The endoplasmic reticulum has several roles, including packaging and transporting proteins.
Answer:
C. The nucleus in an animal cell has a different primary function than in a plant cell.Nucleus has the same function in a plant & animal cell.
a culture started with 5000 bacteria. after 8 hours, it grew to 6000 bacteria. predict how many bacteria will be present after 10 hours
What determine the code or information of DNA molecule?
'the fern are more terrestrially adapted 'explain this statement
Answer:
The reason for this is that both moss and fern species are relatively primitive plants that are only Imperfectly adapted to a terrestrial environment. ferns have both roots and vascular tissue and therefore, can grow larger than moss species, but like the mosses, ferns require water for reproduction.
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Answer:
A. Coal
Explanation:
Coal has the potential to generate energy
7 difference between Arteries, vain and capillaries
Answer: Hope this helps answer in explanation.
Explanation:
1) These are responsible for the transportation of blood from the heart to all parts of the body. These vessels collect blood through capillaries and transport it towards the heart. These vessels connect arteries and veins.
2. All arteries carry oxygenated blood except pulmonary arteries which carry deoxygenated blood. All veins carry deoxygenated blood except pulmonary veins which carry oxygenated blood. These carry mixed oxygenated and deoxygenated blood.
3. Arteries have no valves in them except at the base of the pulmonary trunk and aorta. Valves are present in veins. These valves prevent the backflow of blood. There are no valves in them.
4. Arteries have high blood pressure. Veins have low blood pressure. There is falling pressure in them.
5. In arteries, waves of blood pressure or pulse due to heartbeat can be detected. There is no pulse. There is no pulse.
6. Blood flows rapidly between 400-500mm per second in the aorta and decreasing in arteries and arterioles. The rate of blood flow increases from smaller to larger veins. Blood flow is slowest which is less than 1mm per second.
7. Arteries have a smaller bore and thick walls. Veins have a larger bore and thin walls. Capillaries have a larger bore and the wall is of one cell in thickness.
8. There are thick muscle layers and elastic fibers present. The elasticity helps to change the pulsating flow of blood. There are thin muscle layer and less elastic fibers present in veins. So, they are less elastic. No muscles or elastic fibers are present.
9. There is no exchange of materials. There is no exchange of materials. These are responsible for the exchange of gases and nutrients.
why does the sky looks blue in the daytime and looks red during sunset because in of brownian movement be cause of the suspense is particles the air see because the tyndall effect because the of the particles a directly
Answer:
due to the refraction of light from sea.
Explanation:
the sky looks blue in the daytime and looks red during sunset because in of brownian movement be cause of the suspense is particles the air see because the tyndall effect because the of the particles a directly
true or false the typical X shaped chromosomes is the result of DNA replication
Answer:
True
Explanation:
Truly, the typical X shaped chromosomes is the result of DNA replication. When the DNA has replicated, it then condenses and coil into the X-shaped of the chromosome. This then implies that replicated chromosomes take the X-shaped structures seen under a microscope.
When this replication occurs, the chromosome is made of two structures that are identical. They are known as the sister chromatids. These chromatids are actually joined at the centromere.
about how long ago did the first single-celled life form appear on Earth?
A. 130 million years ago
B. 1.5 billion years ago
C. 2.5 billion years ago
D. 4.1 billion years ago
Answer:
Around 4.1 billion years ago, the first single celled life form appeared on Earth
Rachel Carson published Silent Spring, which highlighted the potential dangers of _______________________.
Answer:
It highlited the potential dangers of chemicals and pesticides humans use that can negatively affect the animals.
Explanation:
the book mainly discussed the disasterous affects humans have on the world/nature.
You have purified the receptor for a hormone by affinity chromatography. During gel filtration chromatography under native conditions the receptor elutes between pyruvate decarboxylase (250 kDa) and glutamine synthetase (620 kDa). During SDS-PAGE, in the absence of reducing agents, the receptor migrates as a single band of approximately 230 kDa. When SDS-PAGE is carried out in the presence of 2-mercaptoethanol the receptor migrates as two bands of approximately 95 and 135 kDa. Explain this result.
Answer:
the hormone receptor is a heterotetramer composed of two subunits with 95 kDa and two subunits with 135 kDa
Explanation:
In this case, the heterotetramer is composed of two heterodimers, each composed of two subunits that held together by disulfide bonds. These heterodimers bind together through hydrophobic interactions in order to form a tetramer. The Sodium Dodecyl Sulfate (SDS) is a denaturing detergent that dissociates both heterodimers by interfering with hydrophobic interactions that hold heterodimers together. It is for that reason that only a single band of 230 kDa is observed (135 kDa + 95 kDa = 230 kDa). Moreover, 2-Mercaptoethanol breaks disulfide bonds, thereby separating the two subunits in the heterodimer. In consequence, after the use of this chemical compound (2-Mercaptoethanol), two different bands with 135 kDa and 95 kDa can be observed.
How would an increase in the global surface air temperature affect the
water cycle?
Answer:
The answer is b because with more air the clouds would get more water and when the clouds get full it will rain and may cause a flood
Explanation:
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Answer :
Climate change intensifies this is cycle because as air temperature increases, more water evaporates into the air. Warmer air can hold more water vapour, which can lead to more intense rainstorms, causing major problems like extreme flooding in coastal communities around the world.
1. What are the two main divisions of the nervous system? How would you separate them anatomically? Functionally
Explanation:
The anatomical divisions are the central and peripheral nervous systems. The CNS is the brain and spinal cord. The PNS is everything else and includes afferent and efferent branches with further subdivisions for somatic, visceral and autonomic function.
Answer:
1-) Central nervous system and peripheral nervous system.
Aquifer is the process of seeping of water under the ground.
Answer:
The process of seeping of water into the ground is called infiltration. The groundwater thus gets recharged by this process. At places the groundwater is stored between layers of hard rock below the water table. This is known as an aquifer.
Answer:
Explanation:
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt). Groundwater can be extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology.
which of the following is not function of the skeletal system that protects the delicate organs of the body it supports the body see its transports food to the different parts of the body the its enables the body to move please help me please
Explanation:
Option D:production of body heat: The skeleton serves six major functions: support, movement, protection, production of blood cells, storage of minerals and endocrine regulations. Hence, production of body heat is not a function of the skeletal system.
The major functions of the skeletal system are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and blood cell formation
A news article discussed a genetically engineered medicine that is used to enhance the production of antibodies that are used against disease. Which medicine is this
Answer:
the sun
Explanation:
Which group is allowed to unionize but NOT strike? *
farmers
federal employees
factory workers
professional athletes
Answer: The answer is federal employees
Explanation:
What is the function of a chromosome
A. To tightly package a single amino acid
B. To tightly package a single protein
C. To tightly package a single molecule of DNA
D. To tightly package a single gene
Answer:
C
Explanation:
A chromosome is a dna strand wrapped around a histone and coiling to give the signature chromosome shape
Answer:
C. To tightly package a single molecule of DNA
Explanation:
how do water and living things interact?
How can humans mitigate the effects of human development on biodiversity?
Through proper education, and by demanding that governments make decisions to preserve biodiversity, the human population will be able to sustain life on earth longer.
What are the Negative impacts of genetically modified crops
answer:
the use of some gm crops can have negative impacts on non-target organisms and on soil and water ecosystems.
explanation:
for example, the expansion of gm herbicide-tolerant corn and soy, which are twinned with herbicides, has destroyed much of the habitat of the monarch butterfly in na.
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1. Mitosis is a nuclear division that ?
the chromosome number
As water temperature __________ the amount of O2 dissolved in water _____.
Answer:
Explanation:
As water temperature increases, the amount of O2 dissolved in water decreases.
The graph looks something like this (though not exactly. It just has the same sort of shape.)
A cell approaches a large macromolecule. To consume it for food, the cell extends two pseudopods that surround and pull the macromolecule in as shown above. Which of the following terms describes this type of transport?
A. pinocytosis
B. endocytosis
C. exocytosis
D. phagocytosis
E. receptor-mediated endocytosis
Answer:
B. phagocytosis
Explanation:
Taking the Study Island lesson as I type this.
23. What event most likely took place after photosynthetic organisms were introduced on earth? a. The atmosphere content changed from highly oxygenated to CO2 b. Mitochondria began converting glucose into ATP at a higher rate c. Oxygen was introduced into the environment allowing for many other organisms to survive d. The water cycle was thrown off causing super storms
Answer:
C. Oxygen was introduced into the environment allowing for many other organisms to survive
Explanation:
A is not correct because that is the opposite of what photogenic organisms do.
B is not correct because ATP and glucose do not apply.
D is not correct because photosynthesis does not have a direct affect on the water cycle itself.
Which of the following statements is true of a gene that is active (expressed)?
A.The DNA corresponding to the gene is tightly wound around histones.
Answer:
There are many acetyl molecules attached to the histones associated with the gene.
Explanation:
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what types of interactions regulate gene expressions
Answer: Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm. Further regulation may occur through post-translational modifications of proteins.
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Explanation:
Answer: Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm. Further regulation may occur through post-translational modifications of proteins.
Explanation:
Mercury is often used in thermometers. The mercury sits in a bulb on the bottom of the thermometer and rises up a thin capillary tube as the temperature rises. Suppose a mercury thermometer contains 3.380g of mercury and has a capillary that is 0.200mm in diameter. How far does the mercury rise in the capillary when the temperature changes from 0.0 0C to 25.0 0C
Answer:
3.5 cm
Explanation:
Mass of mercury = 3.380
Diameter = 0.200
At t = 0 and 25 degrees we have 13.596 and 13.543 as density
At 0 degree = v = 3.380/13.596 = 0.2485
At 25 degrees = 3.380/13.534 = 0.2497
We use volume of cylinder to get height
At 0⁰ height = 7.91
At 25⁰ = 7.944
The difference in height = 0.035
Multiply by 100 = 0.35 x100
= 3.5cm
how much is 14 pennies?
Answer:
14 cent
Hope this helps :)
Answer:
14 cents
Explanation:
$0.14