Answer:
d. alveolar ventilation rate
Explanation:
Alveolar Ventilation rate (AVR) refers to the rate of airflow that reaches the alveoli which is available for gas exchange with the blood in a given unit of time. AVR is generally calculated as the amount in millimeters of air expired that equilibrates (i.e., exchanges) with alveolar gas per min unit (ml/min). AVR is affected by breathing frequency, tidal volume ( i.e., the normal amount of air between inhalation and exhalation), and the amount of dead space in the lungs.
You accidentally stub your toe on a chair when walking in a darkened room. A ________ - Word Answer Type your answer here (pain receptor) relays this information by sensory nerves _________ - Word Answer Type your answer here Please type your answer to submit ) to the _________ - Word Answer Type your answer here , which in this case is the spinal cord. You immediately step back because the spinal cord sends a command via the _______ - Word Answer Type your answer here to your leg muscles, which are acting as the ________ - Word Answer
Answer:
1. Receptor (nociceptor).
2. Afferent neurons.
3. Spinal cord.
4. Motor neurons.
5. Efferent neuron (effector).
Explanation:
In Biology, stimulus can be defined as an obvious change in either the chemical or physical structure of an organism' environment (either external or internal). Thus, all living organisms (both animals and plants) respond to changes in their environment and consequently, an appropriate response or reaction is made. Also, stimulus arising from within the organism is known as internal stimulus while those from its environment are known as the external stimulus.
In organisms, the specialized cells that detect stimulus are generally known as sensory receptors while a group of these receptors is referred to as sense organ.
In this scenario, you accidentally stub your toe on a chair when walking in a darkened room. A receptor (nociceptor) relays this information by sensory nerves in the afferent neurons to the spinal cord, which in this case is the spinal cord. You immediately step back because the spinal cord sends a command via the motor neurons to your leg muscles, which are acting as the efferent neuron (effector).
What is positive feedback loop is also know as
Answer:
positive feedback (exacerbating feedback, self-reinforcing feedback) is a process that occurs in a feedback loop which exacerbates the effects of a small disturbance.
Melissa tested how fast sound waves travel through different media. She then ordered the speed at which the sound traveled through each medium from fastest to
slowest. Which data table represents the correct order that the sound waves traveled from fastest to slowest?
Fastest Speed
Medium Speed
Slowest Speed
steel
air
water
Fastest Speed
Medium Speed
о
Slowest Speed
water
air
steel
Fastest Speed
Medium Speed
Slowest Speed
O
steel
water
air
Fastest Speed
Medium Speed
Slowest Speed
air
steel
water
Fastest Speed: Steel
Medium Speed: Water
Slowest Speed: Air
Genes that are close enough to each other on the bacterial chromosome to be contransformed are said to be linked.
a. True
b. False
Answer: True
Explanation:
Genes are simply referred to as the unit of hereditary. It should be noted that the genes consist of DNA.
The statement that genes which are close to each other on the bacterial chromosome that is to be contransformed are said to be linked is true.
Therefore, the answer is true.
5. What gametes are produced by the following organisms: a. Genotype YyRr, if Y and R are on different chromosomes b. Genotype YyRr, if dominant Y and R are on the same chromosome, no crossing over c. Genotype YyRr, if dominant Y and recessive r are on the same chromosome, no crossing over d. Genotype YyRr, if dominant Y and R are on the same chromosome, 50% crossing over
Answer:
a) YR, Yr, yR, yr
b) YR, yr
c) Yr, yR
d) YR, yr, Yr, yR
Explanation:
Before gametes are formed, during anaphase sister chromatids separate and migrate to the poles. Following the low of segregation and independent assortment, alleles from the same trait and from different traits separate independently from each other. During this separation, there might be different gene combinations according to their position in the chromosome, the occurrence of crossing over, and the destiny of each chromatid.
a. Genotype YyRr, if Y and R are on different chromosomes
Genes are located in two different chromosomes, which means that there might be four possible gametes.
YR, Yr, yR, yrb. Genotype YyRr, if dominant Y and R are on the same chromosome, no crossing over
Genes are located in the same chromosome, which means that there might be two possible gametes.
YRyrc. Genotype YyRr, if dominant Y and recessive r are on the same chromosome, no crossing over
Genes are located in the same chromosome, which means that there might be two possible gametes.
YryRd. Genotype YyRr, if dominant Y and R are on the same chromosome, 50% crossing over
The fact that there is 50% crossing over means that these genes are not linked. There are four possible gametes
YR (parental)yr (parental)Yr (recombinant) yR (recombinant)PLEASE HELPPP!! ILL GIVE BRAINLIEST AND 10 POINTS!!
The ocean floor is not entirely flat, but has mountains and valleys. How did they get there?
Explain your answer.) (4 - 7
sentences to fully answer the
question.)
Answer:
In all kinds of storms the coriolis effect cause the movement of water in the uppermost parts of the ocean also known as the ekman layer to create hills and valleys in the ocean topography or shape. Counterclockwise winds cause surface water to move to the right and away from a central point causing a sea surface valley. Clockwise winds cause surface water to move to the right and toward the central point causing a sea surface hill. Thats all i know i hope i helped
Explanation:
Biology I Mid-Year-Assessment (2020-2021)
In hamsters, black fur (B) and white fur (W) are co-dominant. A scientist finds a record of offspring for a mated pair of
hamsters. The record shows 50% of the offspring had black and white fur and 50% of the offspring had white fur. None of
the offspring had black fur only. Which parental cross was most likely responsible for the percentages of offspring fur color
the scientist found?
A. BW x WW
B. BW x BW
C. BB x WW
D. BW x BB
Answer:A. BW x BB
Explanation:
The parental cross that was most likely responsible for the percentages of offspring fur color, the scientist found, BW x WW. The correct option is A.
What is crossing?The exchange of genetic material between non-sister chromatids of homologous chromosomes occurs during crossing over, an enzyme-mediated process. It happens during meiotic prophase I's pachytene stage.
When chromosomes of the same type are paired together during meiosis, a biological event called crossing over takes place.
Parts of the chromosome can be exchanged when two chromosomes, one from the mother and one from the father, line up. The same genes may be present on the two chromosomes in different versions.
Therefore, the correct option is A. BW x WW is the result of the crossing over of offspring for a mated pair of hamsters.
To learn more about crossing, refer to the link:
https://brainly.com/question/28974190
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When sufficient heat is applied, double-stranded DNA denatures into two single-stranded molecules as the heat breaks all of the hydrogen bonds. In an experiment, molecules of single-stranded DNA from species X are separately hybridized with supoosedly homologous single-stranded DNA molecules from five species (A-E). The hybridized DNAs are then heated, and the temperature at which complete denaturation occurs is recorded. Based on the data, which species is probably most closely related to species X
Answer and Explanation:
When sufficient heat is applied, DNA unwinds, and the hydrogen bonds that grip the strands together weaken and break. The process of breakdown of double-stranded DNA into single strands is called DNA denaturing. The temperature at which double-stranded DNA is half denatured is termed as Tm (melting temperature). By the absorbance of the DNA solution, the amount of strand melting is measured at 260nm. At this wavelength, nucleic acids absorb light. When DNA strands come together, the proximity of the bases in the DNA strands reduces some absorbance. When the DNA strands separate, the absorbance rises 30% to 40%, and quenching of the absorbance disappears. This is known as hyperchromicity. By using DNA denaturation, the sequence difference between the two DNA sequences can also be detected. When double-strand DNA is heated, it denatured into a single-stranded state. The mixture is cooled to allow the strands to re-hybridize. Hybrid molecules are formed among related sequences.
Mention two important benefits of forests.
Answer:
The benefits provided by forest ecosystems include: goods such as timber, food, fuel and bioproducts.
Answer:
1. ecosystems include
2. good such as timber
Explanation:
I hope it help
Which of the following is not true concerning the flow of energy through an ecosystem
Answer:
D. Most of the energy from photosynthesis flows out as heat
Explanation:
Energy flow is the amount of energy that moves through a food chain in a given ecosystem
Water and food are both examples of _____ factors.
A .limiting
B. abiotic
C. carrying
D. biotic
Answer:
D
Explanation:
Biotic factors-all the influences that organisms in the community have on each other
Protein markers react with specific ______, which are proteins found in the immune system.
A. antigen
B. immunity
C. antibody
D white blood cells
Protein markers react with specific antibody, which are proteins found in the immune system.
What is protein?
Proteins are large micromolecules and macromolecules that comprise one or more long chains of amino acids.
Proteins found in immune systemThe major proteins found in the immune system are cytokines, antibodies, and complement proteins.
Thus, Protein markers react with specific antibody, which are proteins found in the immune system.
Learn ore about protein here: https://brainly.com/question/10058019
Which would have the greatest potential energy?
A 4lb rat on a school desk\
B 45lb dog in an oak tree
C 14 pound platypus on a swing
D 45lb child on a bike
Answer:
B-45lb dog in an oak tree
Explanation:
Do humans have an open or closed circulatory system? Explain.
Answer:
Explanation:
Organisms have different forms of circulatory systems. Humans have a closed circulatory system, while many mollusks and other invertebrates have an open system. In a closed circulatory system, blood is enclosed within blood vessels.
How did economics delay scientists' first attempts for conservation in each story?
The correct answer to this question is the following.
Unfortunately, your question is incomplete. You did not attach the two stories. So we do not know what the topic is. You also forgot to attach a link or the title of these stories.
However, trying to help you we did some deep research and can comment on the following.
There are two stories about Conservation Activity. One is about "Using Forest Wisely" and the other is about "Community Conservation."
If that is the case, we can say that the economics delay scientists' first attempts for conservation affect the conservation study and the environment in that cutting those trees for economic purposes directly impact the wildlife and nature of the region.
Trees are the sentient beings that produce the oxygen human beings need to breathe fresh air. They clean the air because trees "breathe" carbon dioxide. The uncontrolled cutting down of trees could affect because resources could be scarce, increasing prices of goods.
One of the stories refers to the case of gorillas in places such as Rwanda or Uganda, risking the habitat of these animals and the entire environment of those forests, which also results in affecting the economy of the places.
Do you feel land is an
important resource to
govern and protect?
Answer:
Yas queen
Explanation:
OF COURSE!
WE NEED TO STOP POLLUTION PLSS
Is water dry or moist????
Answer:
moist
Explanation:
because water is a liquid and its a moisture of wet
What type of bond is formed when two atoms share one or more pairs of valence electrons?
Answer:
Covalent bond
Explanation:
When atoms share valence electrons, it is called a covalent bond. Be careful not to confuse this with an ionic bond, which is when valence electrons are transferred from one atom to another. Hope this helps!
In proteins, the initial blueprint for the amino acid order is determined by:
nitrogenous bases in RNA
there is no order in amino acids
nitrogenous bases in DNA
Answer:
In proteins, the initial blueprint for the amino acid order is determined by:
✓ nitrogenous bases in RNA
O there is no order in amino acids
O nitrogenous bases in DNA
Explanation:
Protein synthesis is the process in which cells make proteins. Translation occurs at the ribosome, which consists of rRNA and proteins. In translation, the instructions in mRNA are read, and tRNA brings the correct sequence of amino acids to the ribosome.
An atom of hydrogen consists of one
surrounded by one
proton, neutron
neutren, praten
preten, electron
neutron, electron
Answer:
Ann atom of hydrogen consists of one proton surrounded by one electron
Answer:
its C I believe
Explanation:
Which of the following statements is true?
OA. Chemical reactions can either absorb thermal energy or release thermal energy
ОВ.
Chemical reactions can only absorb thermal energy.
OC.
Chemical reactions can neither absorb thermal energy nor release thermal energy.
OD.
Chemical reactions can only release thermal energy.
Answer: Chemical reactions can either absorb thermal energy or release thermal energy.
How is atp used in the cellular process besides oxygen production
Answer:
•some examples of cellular processes that require ATP
ATP is consumed for energy in processes including ion transport, muscle contraction, nerve impulse propagation, substrate phosphorylation, and chemical synthesis. These processes, as well as others, create a high demand for ATP.
Explanation:
i hope it's help
 What are the two characteristics of areolar 
Answer:
Elasticity
Explanation:
This allows a comodating the stretch that occurs in vessels and other organs during the movents of the body
Hope it helps.
Don't forget to click the Brainliest button if you like my answer.
Plants and animals are multicellular organisms?
Which statement best describes the difference between them and other organisms?
(A) they have organelles in each cell perform function to keep the cell alive
(B) they are made of many specialized cells types that perform specific functions to keep the entire organism alive
(C) the cells that make them up are larger than cells that make up bacteria, yeast, or amoeba
(D) they can all use socialized cells to make their own food by capturing the suns energy, other organisms cannot do this
Answer:
B) they are made of many specialized cells types that perform specific functions to keep the entire organism alive
Explanation:
A multicellular organisms are organisms that possess many cells in its body system. As stated in this question, plants and animals fall under this multicellular category. These cells begin to specialize in function as they divide through a process called CELL DIFFERENTIATION.
In comparison with the number of cells of other organisms, which are unicellular (one cell), multicellular organisms are made of many specialized cells types that perform specific functions to keep the entire organism alive whereas in unicellular organisms, only the organelles in one cell performs the function.
In which situation would being genetically
identical to the parent be an advantage
for an organism?
Answer:
Explanation:
Two offspring cells with the same genetic material as the parent cell. Two offspring cells with half genetic material as the parent cell
Which physical and behavioral characteristics do you think distinguished humans from other primates?
Answer:
Give me answer choices then I can help you
Explanation:
help guyz please please please
Answer:
I think its C
Explanation:
What is a type of reaction that occurs when you burn something? (combine it with oxygen)
Answer:
Combustion is the scientific word for burning. In a combustion reaction, a substance reacts with oxygen from the air. Combustion reactions happen at high temperatures, and transfer energy to the surroundings as light and heat. This is why you see flames when things burn.
Answer:
A substance combines with oxygen and releases energy in the form of heat and light.
combustion is the best type of chemical reaction.
Explanation:
When a substance combines with oxygen and energy is emitted in the form of heat and light, this process is called combustion.
There are two types of combustion.
1) Complete Combustion : It is a type of combustion in which fuel is quickly react with high amount of oxygen forming carbondioxide, water, heat and light.
2) Incomplete combustion : It is a type of combustion in which fuel is react with low amount of oxygen forming carbonmonoxide, carbon and water.
Explanation: Combustion is a reaction in which a substance (a fuel) reacts with oxygen to produce heat energy. Another name for combustion is burning. Combustion can be complete or incomplete: complete combustion takes place in the presence of unlimited supply of oxygen in which the substance is completely oxidized leaving water and carbon dioxide as by-products. Incomplete combustion occurs in the presence of limited quantity of oxygen in which the substance is not completely oxidized. The byproducts are carbon monoxide and soot.
Create an atom with Atomic Number equal 2
Answer:
The answer would be the element helium.
Explanation:
The helium has 2 protons and 2 nuetrons in the atom, therefore giving it the atomic number of 2.
which acid is used to produce chloride salt
Answer:
Different acids make different salts.
Explanation:
a hydrochloric acid
b sulphuric acid
c nitric acid