The Harmattan is a season in West Africa, which occurs between the end of November and the middle of March. It is characterized by the dry and dusty northeasterly trade wind, of the same name, which blows from the Sahara Desert over West Africa into the Gulf of Guinea.[1] The name is related to the word haramata in the Twi language.[2] The temperature is cold in most places, but can also be hot in certain places, depending on local circumstances.[3]
The Harmattan is a season in West Africa, which occurs between the end of November and the middle of March. It is characterized by the dry and dusty northeasterly trade wind, of the same name, which blows from the Sahara Desert over West Africa into the Gulf of Guinea.[1] The name is related to the word haramata in the Twi language.[2] The temperature is cold in most places, but can also be hot in certain places, depending on local circumstances.[3]Harmattan haze surrounding Abuja National Mosque in Abuja
The Harmattan is a season in West Africa, which occurs between the end of November and the middle of March. It is characterized by the dry and dusty northeasterly trade wind, of the same name, which blows from the Sahara Desert over West Africa into the Gulf of Guinea.[1] The name is related to the word haramata in the Twi language.[2] The temperature is cold in most places, but can also be hot in certain places, depending on local circumstances.[3]Harmattan haze surrounding Abuja National Mosque in AbujaThe Harmattan blows during the dry season, which occurs during the months with the lowest sun. In this season the subtropical ridge of high pressure stays over the central Sahara Desert and the low-pressure Intertropical Convergence Zone (ITCZ) stays over the Gulf of Guinea. On its passage over the Sahara, the harmattan picks up fine dust and sand particles (between 0.5 and 10 microns). It is also known as the "doctor wind", because of its invigorating dryness compared with humid tropical air.
Explanation:
Harmattan is a season in west Africa.
What is a working copy of DNA and is read by organelles called?
Answer:
Working copy of DNA is RNA (Ribonucleic acid)
The nucleus controls all of the cell’s activities, such as growth and metabolism, using the DNA’s genetic information.
Answer:
messenger RNA (mRNA)
Explanation:
The working copy of the DNA is called messenger RNA (mRNA). Its ready by organelles such as ribosomes to manufacture amino acids to make proteins.
number of cell that undergo meiotic division to produce a 216 gametes in gymnosperms is
meiotic devision this is the answer it might help you
In a Nitrogen metabolism study, the following data were obtained over the test period:
Nitrogen consumed 175 grams
Total Fecal N 35 grams
Metabolic Fecal N 10 grams
Total Urinary N 80 grams
Endogenous Urinary N 10 grams
Calculate:
a. Apparent Nitrogen digestibility (%)
b. True Nitrogen digestibility (%)
c. Nitrogen Balance (g)
d. Apparent Nitrogen Retention (%)
Answer:
a. 80%
b. 86%
c. 60 g
d. 34.29%
Explanation:
From the given information:
The apparent nitrogen digestibility (AD) is the ratio of the difference between the consumed nitrogen and fecal nitrogen to the consumed nitrogen.
Mathematically:
[tex]AD = \dfrac{consumed \ nitrogen - fecal \ nitrogen }{consumed \ nitrogen }[/tex]
[tex]AD = \dfrac{175 -35 }{175}[/tex]
AD = 0.8
To percentage, the apparent Nitrogen digestibility = 80%
b. True Nitrogen digestibility is calculated by the formula:
[tex]=\dfrac{consumed \ nitrogen - (fecal \ nitrogen -metabolic \ fecal)}{consumed \ nitrogen}[/tex]
[tex]= \dfrac{175 -(35-10)}{175}[/tex]
[tex]= \dfrac{175 -25}{175}[/tex]
= 0.86
= 86%
c. Nitrogen Balance = consumed Nitrogen - Fecal nitrogen - total uninary
Nitrogen Balance = (175 - 35 - 80) grams
Nitrogen Balance = 60 g
d. Apparent Nitrogen Retention (ANR) is computed as follows:
[tex]ANR = \dfrac{(consumed \ nitrogen-fecal\ nitrogen - total \ uninary )}{nitrogen \consumed }\times 100\%[/tex]
[tex]ANR = \dfrac{(175-35- 80 )}{175 }\times 100\%[/tex]
[tex]ANR = \dfrac{(60 )}{175 }\times 100\%[/tex]
ANR = 34.29%
Molecules produced in the nucleus are transported to the cytoplasm via?
Answer:
Molecules produced in the nucleus are transported to the cytoplasm via endoplasmic reticulum.
Thụ thể nào liên kết với một phân tử ngoài màng tế bào, hoạt hoá một protein kinase bên trong tế bào?
Answer:
?
Explanation:
A pea plant is heterozygous for both seed shape and seed color. S is the allele for the dominant, spherical shape characteristic; s is the allele for the recessive, dented shape characteristic. Y is the allele for the dominant, yellow color characteristic; y is the allele for the recessive, green color characteristic. A pure bred plant with green spherical shaped seeds is crossed with a pure bred plant with yellow dented shaped seeds. State the phenotype and genotype for the parent plants p1 and p2
Answer:
The correct answer is -
P1: SSyy
p2: ssYY
Explanation:
In the given question it is given that S is the allele for the dominant trait of spherical shape over s allele of dented shape and similarly Yellow pea seed is dominant over y green seed.
It is given that parent 1 or p1 is true breeding for green spherical shaped seeds which means it has two alleles of the same gene that are SSyy (S for spherical and y for green) and parent 2 or p2 is a pure bred plant with yellow dented shaped seeds that would be ssYY.
Which characteristic is unique to vertebrates?
A) they all have a well-defined skeleton
B) they have no defined organ systems
C) they have bilateral symmetry
D) they have an exoskeleton
Answer: They have well-defined skeleton.
Explanation:
This is because the vertebrates are uniquely characterised by the presence of the bones.
Answer:
Answer is A)They have a well-defined skeleton
Explanation:
most reasonable answer
Dehydration synthesis leads to WICH formation
Answer:
Polymers...........
Explanation:
Check all statements you agree with regarding the
purpose section of Proposal A.
This project will do a good job revealing the
effect of pesticides on honeybees.
It will help to establish a baseline for historical
comparison, a long-term benefit.
Society will benefit because the project will
indirectly increase the supply of honey and
other agricultural production.
The honey and agricultural industries will
benefit because bees will face fewer threats
Answer:
And will also reduce unemployment and also reduce morbidity
How does replanting trees increase the sustainability of forestland?
A. Replanting reduces the consumption of wood.
B. Replanting reduces the demand for wood.
C. Replanting increases the cost of wood.
D. Replanting increases the supply of wood.
1. Melting ice caps can result in _____.
A. a fall in sea level
B. colder temperatures
C. a rise in sea level
D. less precipitation
Answer:
C
Explanation:
if the ice caps melt it produces more water which leads to sea levels rising
Answer:
C. a rise in sea level
(depending on your stance more than one of these could be true but I'm assuming it wants the obvious one.)
H.L is a 65-year-old Caucasian male diagnosed with Hodgkin’s Lymphoma (NHL) 4 months ago. He just finished receiving his third of six chemotherapy courses 5 days ago. Yesterday morning, he was seen at his oncologist’s office for malaise, muscle weakness, and palpitations. He had splenomegaly on examination. A computerized tomography (CT) scan of the abdomen showed metastatic disease in the liver and spleen. He is admitted to the hospital with progressive disease. The physician confirms a diagnosis of acute tumor lysis syndrome (TLS) and writes a number of orders for H.J.
Required:
What major complication of TLS is H.J. at risk for and why?
Answer:
The correct answer would be - renal failure, kidney stones, uric acid neuropathy and other complications.
Explanation:
The symptoms of H.J include decreased urine output, flank pain, peripheral edema. H.J. is at risk for acute kidney injury which can result in renal failure due to elevated levels of uric acid, BUN, and creatinine.
Uric acid begins to precipitate in the kidneys and leads to conditions such as uric acid nephropathy and subsequent kidney injury. ECG shows in such patients as elevated heart rate due to hyperkalemia and hypocalcemia.
- Muscle cramps, Diarrhea, Nausea, and vomiting
- Renal failure due to kidney stones because of high uric acid.
Your bicycle has the mass of 9 Kg , you accelerate at the rate of 2 m/s2 . calculate the net force that is accelerating the bicycle. ( use the formula a= F/m) please this is urgent
Answer:
18kgm/s2
Explanation:
a=f/m
f=a.m
2m/s2 . 9kg
18kgm/s2
Complete each sentence with the correct word or phrase
a. An action potential reaches the axon terminal causing __________to open.
b. Acetylcholine diffuses across the synaptic cleft before binding to its receptor, which is located on the _____
c. When the membrane potential reaches ________an action potential spreads across the sarcolemma due to the opening of ___________
d. In response to acetylcholine binding, ________ move into the muscle fiber causing the membrane potential to rise.
Answer:
a). Voltage-gated Ca2+ channels
b). the motor end plate
c). Threshold, voltage-gated Na channels
d). sodium ions
Explanation:
a). The voltage-gated [tex]Ca^{2+}[/tex] channels are the key transducers of the membrane potential that changes into a intracellular [tex]Ca^{2+}[/tex] transients which initiates the physiological events. When the action potential makes a contact with axon terminal, the voltage-gated [tex]Ca^{2+}[/tex] channels opens.
b). The acetylcholine is the main neurotransmitter of the parasympathetic nervous system. It helps in blood vessels dilation, muscle contraction, and perform many more functions.
It diffuses with the synaptic cleft that is located on the motor end plate of the nervous system.
c). The membrane potential is also known as the membrane voltage or the transmembrane potential. When it recaches the threshold, the voltage-gated Na channels opens to spread the action potential across sarcolemma.
d). The sodium ions in case of acetylcholine binding moves to the muscle fiber due to which the membrane potential rises.
Explain the role of enzymes to living organisms
Explanation:
enzymes create chemical reaction in the body.But they actually speed up the rate of chemical reaction to help support life.. Enzymes is important to our body as it supports in building muscles and destroying toxins..
Which sensory organ would best detect the movement of a rabbit?
A.
B.
C.
D.
Give any two examples for each. 1. Floating plants 2. Underwater plants 3. Fixed plants 4. Emergent plants 5. Insectivorous plants 6. Mangroves 7. Desert plants 8. Coniferous trees 9. Deciduous trees 10. Grass 11. Evergreen trees
Answer:
awdwdadadaawdadawdawdadad
Explanation:
awdawdawdadawdawdwaawdawdawdadawdawdwda
How is the nitrogen cycle important to humans?
O It produces free nitrogen that humans can breathe.
O It converts nitrogen into a form that humans can obtain by eating other organisms.
o It produces nitrogen compounds that humang can breathe.
O It converts nitrogen into a form that humans can obtain by absorbing it through their skin.
Answer:
It converts nitrogen into a form that humans can obtain by eating other organisms.
The morphogical characteristics of plant plantain...
Answer:
gbcghhhhbhhhhhhhhhhgffggh
Which statement explains the goal of using sustainable practices in food
production?
A. It feeds a growing population without harming ecosystems or
humans.
B. It feeds a shrinking human population while still preserving
ecosystems.
C. It keeps a few populations healthy while still generating high
profits
D. It keeps farmers in business by earning them the highest profits.
Answer: A. It feeds a growing population without harming ecosystems or humans.
Explanation:
Sustainable food production refers to the method of using processes that conserve non-renewable energy, non-polluting, economically efficient, and are also safe for everyone in the society. Also, the needs of the future generation isn't compromised.
The statement explains the goal of using sustainable practices in food
production is to feed a growing population without harming ecosystems or humans. Therefore, the correct option is A.
Reactants definition
Addison's disease is characterized by which of the following symptoms?
a) Hypoglycemia
b) Weight loss
C) Swelling of the lips and nose
d) Electrolyte imbalance
e) Sensitivity to cold
Please help
Answer:
weight loss
Explanation:
bjghuuguuuiiii
The term “trisomy” means
A there are 3 sets of chromosomes.
B there are 3 of the same chromosome.
C there are 3 genes on the chromosome.
Help ASAP
Answer:
B
Explanation:
trisomy means there are 3 of the same chromosome
Bye :-)
Assignment: 04.02 The Biosphere
In this lesson, you took a tour of three of our unique aquatic biomes. In this assessment, you will take a virtual field trip to any aquatic ecosystem of your choice and learn about the biotic and abiotic factors that shape it.
A virtual field trip is a Web search of a location you are unable to visit in person. For this virtual trip, pick any sea, lake, bay, or river in the world and research the biotic and abiotic factors that make it unique. Include the following features in your virtual field trip research:
1. the location of your body of water
2. a description of the geography surrounding your body of water
3. the effects of sunlight on the aquatic life inhabiting your body of water
4. the depths and salinity of your body of water and how this shapes the types of aquatic life present
5. the effects of seasonal changes to water temperatures and aquatic life in your body of water
6. predictions or current research on the effects of climate change to your body of water
Once, you’ve gathered your research, share your virtual field trip with us. Include pictures of your aquatic ecosystem and the life within it in your presentation, but make sure to cite the sources of your pictures and research. Please review the student example and rubric for this virtual field trip before continuing.
You may share your field trip in any creative format you would like. Here are a few suggestions:
- video or media presentation
- slide show
- Web page
- illustration that includes research notes If you need would like an assessment outline
1. Which of the following reproduce using spores?
wild flowers
pine tress
vegetable plants
mosses and ferns
PLEASE HELP MEEE
ASAP
URGENT
Answer:
pine trees
Explanation:
pine trees grow in cold areas where seed cannot be placed in flowers or fruits. hence they are placed in pine cones which protect the seed from cold and harsh weathers
Answer:
Mosses and Ferns
I did the test and this was the answer, hope this helps
In the food web above, if new species of insect were introduced that fed primarily on plantains, how would the following populations be affected? Indicate your answer by increase , decrease or no change and include a brief explanation of your reasoning.
A) greenfly
B) rabbit
C) fox
Answer:
This is a 50/50 answer. I believe it would be fox, sorry if this is incorrect.
Answer:
Greenfly- no change
The greenfly would remain unaffected because it doesn’t rely on plantains.
Rabbit- decrease
The rabbit relies on plantains as food so more competition would result in a decrease in the rabbit population
Fox- decrease
Lesser food means lesser foxes. The foxes prey like the rabbit and mouse eat plantains. If the mouse and fat population goes down so would the fox population.
Hexokinase is an enzyme that catalyzes the ATP‑dependent phosphorylation of glucose to glucose‑6‑phosphate.
a. True
b. False
Answer: The statement is TRUE
Explanation:
HEXOKINASE is an enzyme that catalyzes the phosphorylation of glucose to glucose‑6‑phosphate in glycolysis. The main function of glucose is to provide energy for the tissues. The basic pathway through which energy is gotten from glucose is through GLYCOLYSIS. The glycolytic pathway is made up of enzyme catalyzed reactions that leads to the conversion of glucose to pyruvate in the presence of oxygen or lactate in the absence of oxygen.
The first step in glycolysis is catalyzed by HEXOKINASE, an enzyme with broad specificity that catalyzes the phosphorylation of six-carbon sugars. Hexokinase phosphorylates glucose using ATP as the source of the phosphate, producing glucose-6-phosphate, a more reactive form of glucose.
Therefore the above statement is TRUE.
Was there any significant difference in appearance between the two bean plants? if so, what was the difference?
Explanation:
the plant in the sunlight will receive green color due to chlorophyll and the plant in the dark will have yellow or white color due to the lack of chlorophyll
If the diploid number of a bull is 60, the chromosome number found in its sperm is
Help ASAP
Answer:
30
Explanation:
sperm cells are haploid
Answer true or false.
1._____The central nervous system consists of the brain, spinal cord, and nerves.
2._____The autonomic system is part of the nervous system that controls involuntary
actions in the body.
3._____A fish has a more highly developed brain than an ape.
4.______The spinal cord is part of the respiratory system.
5._____The three main parts of the brain in vertebrates are the cerebrum, the
cerebellum, and the brain stem.
Answer:
1. False
2. -----
3. False
4. False
5. True
I'm not sure of the 2nd question
Hope it helps:)
