Answer:
Explanation:
C ạ
The toxins responsible for botulism are proteins that inhibit the release of acetylcholine, which in turn can cause muscle paralysis. In extreme cases the paralysis can involve the respiratory muscles, and people can die of respiratory failure. This mechanisms of action indicates that the toxins are
Answer:
Poisonous substance.
Explanation:
This mechanisms of action indicates that the toxins are the poisonous substance which attacks on the respiratory system of the body that leads to the respiratory failure. Acetylcholine is the main neurotransmitter of the parasympathetic nervous system which is the part of the autonomic nervous system that contracts smooth muscles so inhibition of the release of Acetylcholine is the main cause of paralysis.
I need help pls answer 30 points i need correct. answer. Fi its wrong i will report.
Draw a diagran to explain filtration. Label the residue and filtrated
Answer:
Filtration is technically defined as the process of separating suspended solid matter from a liquid, by causing the latter to pass through the pores of a membrane, called a filter. The most common example is making of tea. While preparing tea, a filter or a sieve is used to separate tea leaves from the water.
What is the structure of the middle ear?
Answer:
The middle ear is a narrow air-filled cavity in the temporal bone. It is spanned by a chain of three tiny bones—the malleus (hammer), incus (anvil), and stapes (stirrup), collectively called the auditory ossicles.
Explanation:
Hope this helps!;)
Sophia
Which of the following represents the correct flow of information during
homeostasis?
Home
a.) Integrator - Sensor - Effector
O b.) Sensor - Integrator - Effector
Hi
WHAT'S
oc.) Sensor - Effector - Integrator
Welcome to
allows your
o d.) Effector + Integrator + Sensor
1. Homeo
2 Sensors
Answer:
b.) Sensor - Integrator - Effector
Explanation:
During homeostasis, our body sense change that occur in the external environment through sensors. These sensors sends the information to integrator or the control center where the information is analyzed. After analysis, the instructions are send to the effectors to take action against the change which is occur in the external environment of our body so the correct order of homeostasis is Sensor - Integrator - Effector.
When using a scientific calculator, what is the the correct order of buttons to
press to enter the number 3.5 x 1015?
O A. [EE] [1] [5] [3] [] [5]
B. [1] [5] [3] [5] [EE]
C. [3] [.] [5] [EE] [1] [5]
O D. [1] [5] [3] [] [5] [EE]
SUBMIT
An ecologist counted the number of eggs in randomly selected nests in a population of birds. To test the hypothesis that the number of eggs per nest follows a Poisson distribution at the 5% level of significance, you will need to compare a calculated value with a critical value.
Eggs Number of nests Prob Expected
nest, xi per fi
0 15 0.2845 19.9
1 29 0.3576 25.0
2 19 0.2248 15.7
23 7 0.1331 9.3
SUM: 70 1.0000 70.0
What are the calculated and critical values for this test?
a. calculated = 45.6; critical = 5.991.
b. calculated = 3.10; critical = 5.991.
c. calculated = 5.89; critical = 5.991.
d. calculated = 3.10; critical = 7.815.
Answer:
d. calculated = 3.10; critical = 7.815.
Explanation:
To test the hypothesis Given in the question above, we use the Chisquare goodness of fit :
The test statistic is defined as :
χ² = Σ(Observed - Expected)² / Expected
Observed = number of nests
χ² = ((15 - 19.9)^2 / 19.9) + ((29 - 25)^2 / 25) + ((19 - 15.7)^2 / 15.7) + ((7 - 9.3)^2 / 9.3)
χ² = 3.1089
The critical value :
df = n - 1 = 4 - 1 = 3
The critical value ;P(χ² at 0.05, df = 3 ) = 7.815
Nutrient Food source Role in the body Vitamin A Iron Iodine Vitamin D Protein
Answer:
There are seven main classes of nutrients that the body needs. These are carbohydrates, proteins, fats, vitamins, minerals, fibre and water. It is important that everyone consumes these seven nutrients on a daily basis to help them build their bodies and maintain their health.
these are the 7 main classes of Nutrition that the body needs hope it will help you
The Cell-mediated response is a chain reaction of antigens and Interleukins that results in:
A. The swelling of fluid and clotting elements to a damaged area.
B. The differentiation of helper T cells into cytotoxic T cells to destroy pathogens.
C. The production of macrophages to use phagocytosis on pathogens.
D. The differentiation of effector B cells into plasma cells to make antibodies.
The Cell-mediated response results in the production of macrophages to use phagocytosis on pathogens. The correct option is C.
Cell mediated immune response occurs when an invading antigen causes the release of cytokines (Interleukins), differentiation of T cells and production of macrophages.
Macrophages are produced through the differenciation of monocytes. They are further activated during an infection through the macrophage-activating cytokine (Interleukins).
Phagocytosis is the process used by immune cells such as macrophages which involves ingesting and eliminating pathogenic microorganisms.
Cell-mediated response dosent result to differenciation of helper T cells into cytotoxic T cells rather it leads to the activation of cytotoxic T cells. Therefore B is wrong.
Cell-mediated response dosen't lead to the production of antibodies therefore option D is wrong.
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How do simple organisms exchange substances?
O A. Directly across the alveoli.
OB. Through spiracles.
C. Directly across the external membranes.
D. Through specialized gas exchange systems.
what is adaptation give any four characters of aquatic plants
Explanation:
Animals have special features that help them to live in a particular place. Therefore this features is called adaptation.
1] Aquatic plants have leaves that float on the surface of water.
2] Thier leaves are rarely have stomata.
3] Thier leaves can perform all the work without xylem.
4] They are usually lack cuticle layer in order to avoid excessive dryness.
Answer:
The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floating leaves and finely dissected leaves are also common. Aquatic plants can only grow in water or in soil that is frequently saturated with water.
Four characters of aquatic plants are as given below:
1) most aquatic plants donot need culticles or have thin culticles as cuticles prevent loss of water.
2) aquatic plants keep their stomata always open for they do not need to retain water.
3) on each side of their leaves are a number of stomata.
4) aquatic plants have less rigid structure since water pressure supports them.
Explanation:
I hope this answer help you.
Como harías para ver microorganismos del suelo con plantas y del suelo sin plantas
Answer:
i didn't understand what you told
what is the formula for net primary productivity
Gross Primary Production or GPP minus the carbon that is lost to respiration
Explanation:
NP = GPP - RESPIRATORY LOSS
The nucleus of the cell is similar to the_______ system of the body.
The nucleus of the cell is similar to the Neurological system of the body.
What is Nucleus?According to the Cell Biology, nucleus may be a membrane found in organism cells.
The nucleus contain all of the cell's ordering except mitochondrial DNA and in plant cell, Plastid DNA.
Nuclear DNA is organized as multiple long linear molecules in a very complex form with a large variety of proteins, like histones, to make chromosomes.
The nucleus maintains the integrity of sequences and controls the activities of the cell by regulation gene expression—the nucleus is, therefore, the control center of the cell
The nucleus contains nearly all of the cell's polymer, enclosed by a network of fibrous intermediate filaments and enveloped in an exceedingly double membrane referred to as the "nuclear envelope".
The nuclear envelope separates the fluid within the nucleus, referred to as the living substance, from the remainder of the cell. The scale of the nucleus depends on the scale of the cell it's contained in, with a nucleus usually occupying 8% of the whole cell volume.
The nucleus is the largest organelle in animal cells.
For example- In mammalian cells, the average diameter of the nucleus is approximately 6 micrometers (µm).
What is Neurological System or Nervous System of the body?The Nervous system could be a extremely advanced a part of associate degree animal that coordinates its actions and sensory data by sending signals to and from completely different components of its body.
In vertebrates it consists of 2 main components, the central system (CNS) and therefore the peripheral system (PNS). The CNS consists of the brain and neural structure.
The function of the system is to send signals from one cell to others, or from one a part of the body to others and to manage the body.
It will this by extracting data from the setting exploitation sensory receptors, causing signals that encrypt this data into the central system, process the data to work out associate degree applicable response, and causing output signals to muscles or glands to activate the response.
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Eukaryotes are different than Prokaryotes, because only eukaryotes have:
A. DNA
B. Capsule
C. Organelles
D. Plasma membrane
Answer:
D
Explanation:
Have a nice day
Eukaryotes are different from prokaryotes because only eukaryotes have Organelles. The correct option is C.
What are prokaryotes?Prokaryotes are primitive organism that is single-celled and their cell contains a capsule and flagella or cilia for locomotion and finding food. These organisms lack true organelles.
Eukaryotes are organisms that can be single-celled or multi-celled. They contain the true nucleus and organelle in the cell and the cell is covered with a cell membrane and a nucleus is present that contains the DNA or the organism.
Prokaryotic and eukaryotic cells, both contain DNA, a plasma membrane. But in prokaryotes, an organelle is absent, and they are covered by a capsule.
Thus, the correct option is C. Organelles.
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state 6 importance of respiration
Answer
Respiration is important because it produces energy that is essential for the normal functioning of the body.Respiration provides cells with oxygen and expels toxic carbon dioxide.It provides pure oxygen to alive and for proper functions.It is very important to live alive.It supply and remove oxygen and carbon dioxide. It has a leading role in functioning in the human body.Transmission of microbes by direct contact includes: a.drinking contaminated water. b.touching a contaminated countertop. c.inhaling dust-borne microbes. d.sexual intercourse.
Answer:
B is correct
Explanation:
__________Are the subunits making up nucleic acids
Answer:
Nucleotides.
Explanation:
Nucleic acids (DNA, RNA) are large polymers, made out of monomer building blocks called nucleotides. The nucleotides have a similar structure with three 'subunits': A phosphate group
What type of system is used to move the body?
A group of organs working together to achieve a common function is known as:
-an embryo.
-an organ system
-multipotent.
-a tissue.
Answer:
The answer is B an Organ system
Answer:
an organ system
Explanation:
The correct answer is organ system. A tissue is a group of cells working together to achieve a common function. An embryo is a fertilized egg that has developed from a zygote. Multipotent merely refers to a type of stem cell that has limited specialization capabilities relative to the capabilities of totipotent and pluripotent cells.
Explain why fabrics made with elastic fibre with the trade name “lycra’ are extensively used in foundation garment industry today. You may use their special characteristics and properties.
Answer:
Fabric name
Lycra
Fabric also known as
Spandex, elastane
Fabric composition
Polyether-polyurea copolymer
Fabric breathabilityn
High breathability
Moisture-wicking abilities
High
Heat retention abilities
Low
Stretchability (give)
Extraordinarily high
Prone to pilling/bubbling
High
Country where fabric was first produced
United States
Biggest exporting/producing country today
China
Recommended washing temperatures
Warm or cold
Commonly used in
Underwear, socks, bras, sports bras, bike shorts, yoga pants, hiking apparel, motion capture suits
#hope this helps u some #
What is the name of lipids building blocks?
Answer:
Glycerol and fatty acids are the basic building blocks of fats (lipids).
Explanation:
What are the features of Nuclear Receptor Screening Services?
Nuclear receptors (NRs) are a class of proteins responsible for thyroid hormones and sensing steroid and certain other molecules. There are 48 genes in the human genome that code for the NRs. As the largest family of eukaryotic transcription factors, NRs control numerous processes involved in development, cell cycle, and important metabolic pathways.
https://dda.creative-bioarray.com/nuclear-receptor-screening.html
Answer:
The nuclear receptor superfamily comprises a large group of transcription factors that play a key regulatory role in development and homeostasis of multicellular organisms. A special feature of nuclear receptors is their ability to bind to condensed chromatin templates, which makes them important initiators of gene transcription. Moreover, the ability of nuclear receptors to sequentially recruit a variety of transcription factors and coregulators to target promoters and to orchestrate the whole process of gene transcription confirms their biological significance and stimulates intensive research and a high level of scientific interest in this field. In this review, we summarise current knowledge regarding the structure and function of nuclear receptors as principal regulators of gene expression. Emphasis is given to the molecular mechanisms of nuclear receptor-mediated transcriptional activation and repression including recent progress made in this area.
Using the field of view calculated in Exercise 1 for the high power lens, what is the approximate diameter of each of the cells in the Bacteria Coccus Form slide in Photo 10? Show your calculations.
400x Magnification
0.4 mm field view
Answer:
i thinks
Explanation:
400x
0.4mm
lens
Which of the following statements about continuous variables is
A. continuous variables must lie between a clearly defined interval
B. continuous variables may be restricted to positive values
C. continuous variables will never be nonzero
D. continuous variables must always be restricted to positive values
Answer:
I think it's A
must lie btn a clearly defined interval
Continues variable must be between a clearly defined the interval about continuous variables. Thus,option A is correct.
What is continuous variables?A continuous variables is define as a function which continuous varies in a given interval for instance, if a variable over a non-empty range of the real numbers is continuous, then it can take on any value in that range.
Types of continuous variables:
There are two types of continuous variables which are mentioned below:-
1:- Instant variable
2:- Ratio variable
Instant variable
A variable can be defined as the distance or level which are varies between given interval.
Ratio variable
Ratio variable is another type of continuous variables which has only one variation in given interval.
Therefore, continues variable must be between a clearly defined the interval about continuous variables. Thus, option A is correct.
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With increases in CO2 in the atmosphere, _______ are expected to experience the largest temperature increases, while __________ are expected to experience the least.
Answer choices
high latitude oceans; high latitude land surfaces
high latitude land surfaces; low latitude oceans
low latitude oceans; high latitude oceans
low latitude land surfaces; high latitude landsurface
Answer:
The first option would be the best.
Explanation:
The oceans heat up first before the atmosphere does.
Different between sinking and floating
Answer:
⬇ See below ⬇
Explanation:
Sinking is where an object/human/animal goes under a type of surface, normally water. Floating, on the other hand, is where an object is at the surface of a liquid, normally water. (Hope this helps!)
I want answers please
Explanation:
1.arm&base
2.a shutter controlled by a lever
3.Nosepiece,objective lenses,stage clips
6. 100X.....(this means that the image being viewed will appear to be 100 times its actual size
Which of the following are the three areas of the tundra biome? (Choose all that apply.)
Arctic
Asian
Antarctic
alpine
Answer:
The three areas of the tundra biome are artic, antarctic and alpine.
HELP PLEASE ASAP FAST
Answer: Adenine hope this helps...
Solid waste material from waste water is called
Answer:
sewage sludge
Explanation:
The solid material waste from waste water is called sewage
sludge
Explanation:
Sewage sludge is the solid, semisolid, or slurry residual material that is produced as a by-product of wastewater treatment processes.