Answer:
Over-watering severely limits, even cuts off the supply of oxygen that roots depend on to function properly, meaning that plants do not get adequate oxygen to survive. Furthermore, too much water can also lead to root rotting and the irreversible decay of roots.
Explanation:
A sample of peptide of unknown sequence was treated with trypsin to produce the following smaller peptides:
1) Met-Val-Ser-Thr-Lys
2) Val-Ile-Trp-Thr-Leu-Met-Ile
3) Leu-Phe-Asn-Glu-Ser-Arg
Another sample of the same peptide was treated with chymotrypsin and gave the following smaller peptides:
1) Asn-Glu-Ser-Arg-Val-Ile-Trp
2) Thr-Leu-Met-Ile
3) Met-Val-Ser-Thr-Lys-Leu-Phe
What is the sequence of the original peptide?
Answer:
The sequence is >> Met-Val-Ser-Thr-Lys-Leu-Phe-Asn-Glu-Ser-Arg-Val-Ile-Trp-Thr-Leu-Met-Ile, or abbreviated M-V-S-T-K-L-F-N-E-S-R-V-I-W-T-L-M-I
Explanation:
Trypsin is a serine protease enzyme capable of hydrolyzing different types of proteins. This enzyme is used in biotechnology and molecular biology to hydrolyze at the carboxyl side of arginine or lysine residues. Moreover, chymotrypsin is another digestive protease that also catalyzes the breakdown of proteins into small polypeptide chains. This enzyme cuts the C-terminal side of aromatic amino acids such as tryptophan (W), tyrosine (Y) and phenylalanine (F) on peptide chains.
How does cell volume affect nutrient exchange between the cell and its external environment?
a. Cells with a large volume and small surface area are well-adapted for nutrient
exchange.
b. Very large cells are the best adapted for nutrient exchange.
c. The ratio of cell volume to surface area determines the efficiency of nutrient
exchange.
d. Very small cells are the best adapted for nutrient exchange.
e. Nutrient exchange is not impacted by cell volume.
Answer:
d. Very small cells are the best adapted for nutrient exchange.
Explanation:
The need to be able to pass nutrients and other substances into and out of the cell limits how big cells can get. The larger a cell is, the more difficult it is for nutrients and gases to move in and out of the cell because the volume is larger than the surface area. Smaller cells can exchange nutrients with the external environment more quickly.
the article says the forest and savanna "could degenerate into chaotic mutual encroachment." What does encroachment mean?
A.to become filled with roaches
B.to hide behind something else
C.to dig a trench around something
D.to advance beyond the usual limits
Answer:
D.to advance beyond the usual limits
Explanation:
According to the article, it says that the forest and savanna "could degenerate into chaotic mutual encroachment." and the term "encroachment" as used in the sentence means to advance beyond usual limits.
For a thing to encroach, it means it has overstepped its boundary.
: Research coal and natural gas as a source of energy.
Answer:
Its fossil energy non renewable source
Explanation:
Answer:
Coal vs Natural Gas Coal is a sedimentary rock with a high concentration of hydrocarbons and carbon. Given that it takes millions of years for coal to develop, it is categorized as a nonrenewable energy source. Coal is combustible and typically black or brownish black in color. Natural gas is a naturally occurring mixture of gaseous hydrocarbons, mostly methane, with small traces of other higher alkanes. Coal and natural gas have different benefits, effects on the Earth, and impacts on human health. Natural gas is a fossil fuel; however its global warming emissions are significantly smaller compared to those from coal or oil. When combusted in a modern, efficient natural gas-power plant, natural gas releases between 50 and 60 percent less carbon dioxide (CO2) than pollution from an average modern coal plant. The impacts of human health due to air pollution from both coal and natural gas can lead to asthma and breathing issues, brain damage, heart problems, cancer, neurological disorders, and early mortality. These conditions are from the releasing of mercury, lead, sulfur dioxide, nitrogen oxides, particulates, and other heavy metals in to the air. In 2021, electricity producers in the United States paid roughly $4.98 per million British thermal units for natural gas. Coal power plant operators, on the other hand, paid an average of 1.98 US dollars; in simpler terms, the cost of generating electricity is cheaper using coal. Coal is a reliable, cheap source of power. It is easy to store, reduces dependence on oil, and creates many jobs. On the other hand, when burned to create power, natural gas produces roughly half the carbon dioxide (CO2) and one-tenth the air pollutants produced by coal. By using gas instead of coal, there is significant potential to cut near-term CO2 emissions and air pollution by using gas over coal. It is adaptive. A gas-fired power plant starts and stops much faster than a coal-fired unit. Both gas and coal have plentiful pros and cons however gas is the better one to use. Gas is more abundant and pollutes more than coal. Though coal is cheaper, the effects on the environment and human health are not worth the gamble. https://www.shell.com/energy-and-innovation/natural-gas/natural-gas-and-its-advantages.html http://groundtruthtrekking.org/Reports/Coal-Electricity-Prices-Externalities-Analysis/1/Coal-Electricity-Prices-Externalities-Levelized-Cost/ https://www.statista.com/statistics/189180/natural-gas-vis-a-vis-coal-prices/
difin spinale cord ? state its function
Answer:
Spinal cord is a colon of nerve tissue that runs from the base of the skull to the center of the back.
Its function is to act as a highway communication between the body and the brain.
Explanation:
chart should have an informative title that describes what was plotted. (1pt)
Table 2
PNP concentration (umole/ml)
Absorbance at peak absorbance wavelength
0.00
0.0
0.02
0.53
0.04
0.82
0.06
1.47
0.08
1.82
6. Type out the equation of the linear trendline of your standard curve. (0.5 pt)
7. Based on the standard curve, what is the extinction coefficient of PNP? Do not
forget to include units. (1 pt)
Electrical signals are sent through the body by the ______ tissue
A. Nervous
B. Connective
C. Epithelial
D. Muscle
Answer: A. Nervous tissue
Explanation: google
how do villi help to increase the absorption of digested food in to the blood stream
Answer:
The cells of the villi and another part of the small intestine, known as the crypts, transport food from the digestive tract into the bloodstream, where they can be used by the body. The villi aid in absorption by increasing the surface area of the intestine and contain specialized cells which transport different types of nutrients into the blood.
Explanation:
A group of cattle moving as herd Maintains _ with each other
Answer: eye contact
Explanation:
www.grandin.com
Which of the following best describes energy transformations in ecosystems?
a.
Most energy in a lower trophic level is passed to higher trophic levels.
b.
Heat is not a significant waste product as energy passes between trophic levels.
c.
Most of the energy collected by an organism is not passed on to other organisms.
d.
Tertiary consumers collect the most energy in an ecosystem.
Answer: C - Most of the energy collected by an organism is not passed on to other organisms.
Explanation:
right on edge 2020
also only 10% of energy is transferred to the next trophic level
The best description of energy transformation in an ecosystem is most of the energy collected by an organism is not passed on to the other organisms. Thus, the correct option is C.
What is Energy transformation in an ecosystem?Energy is transferred between different organisms in a food web from producers to different consumers. The energy is used by the organisms to carry out most of the complex tasks in the food web. The vast majority of energy which exists in a food web originates from the sun and is transformed into chemical energy by the process of photosynthesis in the plants.
Energy transformation in an ecosystem follows 10% law, where only 10% of the energy is transferred to the next trophic level in an ecosystem. Thus, most of the energy collected by an organism is not passed on to other organisms.
Therefore, the correct option is C.
Learn more about Energy transformation here:
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Molecules that are ___
and ____
membrane easily.
pass through the cell
Which of the following characteristics least relates to prokaryotic cells?
1.cells that do not have a nucleus or membrane bound organelles
2.cells that have a nucleus and membrane bound organelles
3. bacteria
4. Archaea
Answer:
2
Explanation:
Prokaryotic cells don't have a nucleus or membrane bound organelles
Cells that have a nucleus and membrane bound organelles are least relates to prokaryotic cells.
A prokaryote is a single celled organism that lacks a nucleus, and other membrane bound organelles.What are eukaryotes?Eukaryotes are organisms whose cells contain a nucleus and other membrane-bound organelles. There is a wide range of eukaryotic organisms, including all animals, plants, fungi, and protists, as well as most algae. Eukaryotes may be either single-celled or multicellular.To know more about cells here
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I HAVE 2 QUESTIONS!!!
1. Organisms that get energy by consuming other organisms are??
2. An organism acts to a stimulus with a(n) ???
Answer:
1.heterotrophs or consumers
2. An organism reacts to a stimulus with a response- an action or change in behavior. ... Another characteristic of organisms is the ability to reproduce, or produce offspring that are similar to the parents.
Idk what it is so I jus bubbled it but I still need help
Who won the French and Indian War? Question 4 options: The Spanish The British The French The Indians
Answer: The British
Explanation:
The British had more training and supplies.
I'm dropping out
I'm tired of University, I'm sick of all my professors for treating me harshly especially during these hard times, and I hate taking midterms.
I'm currently a college freshman in the middle of the semester, and things have been pretty tough. I've been procrastinating the whole week because I had everything going on and I couldn't keep up. I'm a biology major (pre-med) and I have to take two science classes. I suck at managing time and I suck at studying. I feel like I cannot do this. Also, whenever I do my assignments, my professors grade so friggen harshly & give me unfair grades even though I work all the way through midnight finishing it.
I'm a good student, it's just that you know some people can be burned out. I am burned out and college has just been draining my soul each day. Should I drop out?
Answer:
Hey do you want to talk about it? Its going to be okay.
Explanation:
Nutrition Facts
Serving Size----8 oz.
Servings---------2
Amount Per Serving
Calories---------150
% Daily Value*
Total Fat---------0g---------0%
Sodium----------70 mg----3%
Total Carb.-----46g-------15%
Protein-----------0g---------0%
*Percent Daily Values are based on a 2,000 calorie diet
8
The table above shows the nutritional information in a bottle of pop. Drinking 16 oz of this beverage would provide which of the following?
A.
30% of the total carbohydrates for a person on a 1,000 calorie diet
B.
15% of the total carbohydrates for a person on a 1,000 diet
C.
15% of the total carbohydrates for a person on a 2,000 calorie diet
D.
30% of the total carbohydrates for a person on a 2,000 calorie diet
Answer:
d 30%/2,000
Explanation:
table is based on 2000 calories, and one serving is 8 oz. thus question is for 2 servings. which equals 30% carb of 2k calorie diet
Answer:
D
Explanation:
The first known bird fossils date to which era of time.
Answer: Jurassic era
Explanation:
Hope this helps
Rapid erosion in the desert is caused by:
hot temperatures
humid weather
loose soil
dense vegetation
Answer:
losse soil
Explanation:
I am homeschooled and this is the answer for my school
NEED HELP ASAP *
Because of its polar nature, water is extremely effective
A)at forming ionic bonds
B)at sending electrical impulses through the body
C)as a solvent of many materials
D)as an organic compound *
Answer:
C
Explanation:
What 2 processes that use a channel protein that transport substances in or out the cell.
A.osmosis
B. Facilliated diffusion
C. Endocytosis
D. Molecular Pumps?
Answer:
The answer is Fallicitated Diffusion. Also Osmosis, because it requires an input of energy and is accomplished through carrier proteins and channels. I'm really sorry if I'm wrong. I might be wrong :( sorry in advance if i am.