Answer:
welp
Explanation:
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Descrlbe the relationshlp among the agents of disease, the Infectious dose, and the health of
a host.
Answer:
The number of pathogens that are required to infect a host, termed infective dose, varies dramatically across pathogen species. It has recently been predicted that infective dose will depend upon the mode of action of the molecules that pathogens use to facilitate their infection. Specifically, pathogens which use locally acting molecules will require a lower infective dose than pathogens that use distantly acting molecules. Furthermore, it has also been predicted that pathogens with distantly acting immune modulators may be more virulent because they have a large number of cells in the inoculums, which will cause more harm to host cells. We formally test these predictions for the first time using data on 43 different human pathogens from a range of taxonomic groups with diverse life-histories. We found that pathogens using local action do have lower infective doses, but are not less virulent than those using distant action. Instead, we found that virulence was negatively correlated with infective dose, and higher in pathogens infecting wounded skin, compared with those ingested or inhaled. More generally, our results show that broad-scale comparative analyses can explain variation in parasite traits such as infective dose and virulence, whilst highlighting the importance of mechanistic details.
Explanation:
:)
What is the diploid of the zygote produced by fertilization—haploid or diploid?
Answer:
"Haploid" refers to any cell that has 23 chromosomes (half of the total 46). "Gametes" are specifically sex cells that have 23 chromosomes. "Diploid" refers to any cell that has all 46 chromosomes. "Zygote" is the result of two gamete (haploid) cells fusing, and becoming a diploid cell.
hope this helps!!:)
Explanation:
What happens within the cell of a
eukaryotic organism when an
organelle is no longer functioning
properly?
A. The organism will die.
B. The cell will die.
C. The organelle will be replaced with a
functioning one.
(GIVING BRAINLIEST!!)
Describe the planets with just a few sentences.
Answer:
A planet is a celestial body that is in orbit around the sun.
It has sufficient mass for it's self gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium shape.
It has cleared the neighborhood around its orbit.
An example of planet is the earth
true or false: the fossils record cannot help us understand the transition between organisms
Answer:
False
Explanation:
Because it was correct
7. (10 pts) Main principles behind natural selection…
Principle Notes Examples
Populations evolve,
individuals do not.
Populations are groups of
individuals belonging to the
Same species and living
in the same area
Artificial Selection
When Darwin got back from the voyage, he continued his studies. He looked at changes produced by plant/animal __
____. Breeders know that the _______ of individuals within a species _____. The breeders could _______ the species
over many ________ by selecting the individuals with the desired traits to mate together. This is called: __ _____. (If
changes can occur through artificial selection, then it would make sense that the same thing could happen naturally as
well).
Give an example of a crop that is bred through artificial selection:
5.02 Evolutionary Relationships
a _________________ is the
smallest group that can evolve.
Inherited Variation individuals within a population
have natural ________________
that can be inherited (they are
genetic)
Overproduction of
offspring
ability to produce more
_____________________ than can
survive
Adaptations help
individuals compete
successfully for survival
and therefore beneficial
adaptations will become
more common in a
population.
since more individuals are
produced than can survive, they
must ___________________ for
food, space, etc.
"survival of the fittest."- Survival,
in evolutionary terms, means living
long enough to successfully
___________.
Any inherited trait that increases an
organism’s ability to survive is
called an _________________.
3 types of adaptations:
Over many generations, more
beneficial traits will become more
_______________ since the
organisms with those traits are
better able to survive and
_________________.
Species can evolve into
new species over many
generations of successful
adaptations.
New species can eventually emerge
with all of these new adaptations
over generations
-all living species descended with
___________________ from common
ancestors over a very long period of
time
Answer:
population evolve
Explanation:
Muscular dystrophy is a sex-linked recessive disorder that causes the muscles to slowly weaken. Which of the following circumstances would a male child most likely show the trait coded for by the recessive allele?
Group of answer choices
A recessive allele is located on a autosomal chromosome.
A dominant allele is found on the Y chromosome.
A dominant allele is inherited from the father.
A recessive allele is inherited on the X gamete.
For a se_x-linked recessive disorder such a s muscular dystrophy to occur in a male child, a recessive allele is inherited on the X gamete
What are se_x-linked recessive disorders?Se_x-linked recessive disorders are disorders which occurs as a result of a defective gene found on the X chromosomes.
Se_x-linked recessive disorders are usually present on the X-chromosomes and affects mostly boys because they receive their X-chromosomes from their mothers.
For a se_x-linked recessive disorder such a s muscular dystrophy to occur in a male child, a recessive allele is inherited on the X gamete.
Learn more about se_x-linked recessive disorders at: https://brainly.com/question/9418183
Crust is destroyed:
A. At the lithosphere.
B. Near ocean trenches.
C. Near ocean ridges.
D. Near a divergent boundary.
What’s the answer?
Answer:
its
Explanation:
Near ocean trenches A p e
what is photosynthesis - short answer only plz
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
Ariana is trying to complete her flashcards for an upcoming quiz on photosynthesis and cellular respiration. On the front of each card she has written the reactants, and on the back she is writing the products. Her photosynthesis card is complete, but she is missing the back of her cellular respiration card. She asks her teacher what infomation she is missing. Which statement explains where Ariana's teacher will direct her to for help? The teacher will direct her to the anaerobic respiration card because they have identical products. The teacher will direct her to the back of the photosynthesis card because the two processes are identical. The teacher will direct her to the front of the cellular respiration card because cellular respiration has the same products and reactants. The teacher will direct her to the front of the photosynthesis card because photosynthesis reactants are the products of cellular respiration.
Answer:
The teacher will direct her to the front of the photosynthesis card because photosynthesis reactants are the products of cellular respiration.
Explanation:
Cellular respiration is an aerobic process in which energy is released by breaking down glucose ( C6H12O6 ) and other molecules.
Photosynthesis is the process in which plants make their own food in the presence of sunlight by utilizing water (H2O) and carbon dioxide (CO2) and convert it into oxygen (O2) and glucose (C6H12O6 ).
equation of cellular respiration is: C6H12O6 (glucose) + 6O2 (oxygen) => 6CO2 (carbon dioxide) + 6H2O (water) + energy
equation of Photosynthesis: 6CO2 (carbon dioxide) + 6H2O (water) +energy => C6H12O6 (glucose) + 6O2 (oxygen)
Hence, cellular respiration is a reverse reaction of photosynthesis and the photosynthesis reactants are the products of cellular respiration.
the process of freezing is occurring at which number?
Answer:
8-its turning back into a solid by looking at the arrow
Explanation:
Need help...
Describe two problems a plant might encounter during reproduction
Answer:
During reproduction plant might experience absence of pollinators or presence of low temperature
Explanation:
Following can be the problems a plant might encounter during reproduction
Presence of Low temperature for long time: Due to presence of low temperature during the reproduction of plants for long period of time it will break its dormancy and freeze the blossom or developing fruitAbsence of pollinators: As e know pollinators play a vital role in reproduction. In the absence of Pollinators (i.e., beans) plants are not able to exchange the nectar carryingPlant reproduction takes place through the asexual and sexual process called pollination. They can either self-pollinate or cross-pollinate.
Reproduction needs the fusing of both the male and female gametes and fuse to male the seed that bear the fruit. During reproduction, the plants may face a lack of pollen grains and the presence of low temperature.Learn more about the two problems a plant might encounter during reproduction.
brainly.com/question/18597682.
What type of erosion is this?
Answer: Erosion is the process where rocks are broken down by natural forces such as wind or water. There are two main types of erosion: chemical and physical. Chemical erosion occurs when a rock's chemical composition changes, such as when iron rusts or when limestone dissolves due to carbonation.
Explanation:
what is a polygon with 12 angles called
Answer:
Properties. Convex, cyclic, equilateral, isogonal, isotoxal. In geometry, a dodecagon or 12-gon is any twelve-sided polygon.
Explanation:
What is the process called that breaks apart the the phosphate bond in ATP?
Hydrolysis
Water bond
Hydrolostisosis
If a whole number is divisible by 2, 3, 4, and 5, then it
must be divisible by which number?
Answer: 6 and/or 10
it should be either 6 or 10 because you have to find the leas common multiple that all these numbers share. the largest number here is 5, so i found all the multiples of 5. the first number i found that has factors of all these numbers is 60.
Answer: 10 !
Explanation:
Which is an important difference between light-dependent (L-D) and light-independent (L-IND) reactions in photosynthesis?
The L-D reactions need CO2 and light energy, and the L-IND reactions needs water and O2.
The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH, and CO2.
The L-D reactions can only occur during daylight, and the L-IND reactions can only occur during the night.
The L-D reactions need water and CO2, and the L-IND reactions need CO2 and light.
Answer:
B. The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH and C02.
Explanation:
I majored in Biology
Answer:
The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH and CO2.
Explanation: edge2020-21
Identify 2 more terms that are relevant to DNA Fingerprinting.
I need help plz
Answer:
pcr,strs
Explanation:
4. What are the major causes of erosion and deposition?
Answer:
Hope the above picture might help you:)
What is the nucleus and nuclear membrane?
Answer:
A nucleus is the control center of the cell.The nuclear membrane is a double wall that surrounds the nucleus.
Explanation:
Calculate the average maximum height for all three trials when the speed of the bottle is 2 m/s, 3 m/s, 4 m/s, 5 m/s, and 6 m/s.
Record your calculations in Table B of your Student Guide.
When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is
m.
When the speed of the bottle is 3 m/s, the average maximum height of the beanbag is
m.
When the speed of the bottle is 4 m/s, the average maximum height of the beanbag is
m.
When the speed of the bottle is 5 m/s, the average maximum height of the beanbag is
m.
When the speed of the bottle is 6 m/s, the average maximum height of the beanbag is
m.
Answer:
When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is
✔ 0.10
m.
When the speed of the bottle is 3 m/s, the average maximum height of the beanbag is
✔ 0.43
m.
When the speed of the bottle is 4 m/s, the average maximum height of the beanbag is
✔ 0.87
m.
When the speed of the bottle is 5 m/s, the average maximum height of the beanbag is
✔ 1.25
m.
When the speed of the bottle is 6 m/s, the average maximum height of the beanbag is
✔ 1.86
m.
Explanation:
Answer:
When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is
✔ 0.10
When the speed of the bottle is 3 m/s, the average maximum height of the beanbag is
✔ 0.43
When the speed of the bottle is 4 m/s, the average maximum height of the beanbag is
✔ 0.87
When the speed of the bottle is 5 m/s, the average maximum height of the beanbag is
✔ 1.25
When the speed of the bottle is 6 m/s, the average maximum height of the beanbag is
✔ 1.86
Matter can exist in different phases or states. What are three common states of matter? OA. earth, air, and water ОВ. . atoms, elements, and compounds OC. solids, liquids, and gases
Answer: Solids, liquids and gases
Explanation: :)
Energy in our food is released as ________________ energy.
A) chemical energy
B) chemical potential energy
Answer:
b chemical potential energy
Explain why transboundary environmental threats like pollution are a problem for both parties, even if one community is principally responsible for the pollution.
Answer:
Due to its spreading nature.
Explanation:
Transboundary environmental threats like pollution is a problem for both parties i. e. one that is producing pollution and the other which is not producing it, because pollution can't remain at one place and spread from one part to another part of the earth due to open environment. So due to its spreading, it affected both the producing and non-producing parties.
Answer:
Even when pollution originates on one side of a border, it often spreads through the environment beyond the point of origin, becoming a shared problem. It is important to track the sources of pollution to identify the policies and sources for prevention efforts, but regardless of the source of pollution, once a border area becomes polluted, the pollution is a health threat for all individuals on either side of the border.
Explanation
sample answer on edge 21
can i have brainliest please
what part of the muscle cell most closely regulates protein synthesis?
1) Endoplasmic Retriculum
2)Lysosome
3)Nucleus
4)DNA
Answer:
ENDOPLASMIC RETRICULUMExplanation:
Thank uhh!!!!!!!!❤
Muscle cell most closely regulates protein synthesis it follows that ribosomes, which are found in the cytoplasm and rough endoplasmic reticulum, are where protein synthesis or translation of m-RNA to protein occurs, hence option 1 is correct.
What is the endoplasmic reticulum?Sarcoplasmic reticulum is a specific type of ER found in skeletal muscle (SR). The SR is essential for both the contraction of muscles and the preservation of muscle homeostasis because it serves as a calcium storage depot and controls the release of calcium during myofibrillar contraction.
Ribosomes: Ribosomes are crucial cell organelles involved in the production of proteins. Proteins and RNA found in ribosomes assist in translating genetic instructions into proteins.
Therefore, the endoplasmic reticulum part of the muscle cell most closely regulates protein synthesis.
Learn more about the endoplasmic reticulum, here:
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What happens as a result of convection currents in the earth's mantals
Answer:
Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.
Explanation:
Answer: Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.
Explanation: Think of paper on top of a flat plate. If you move the plate in various directions. The paper will also move, but it could be in the same, side to side or opposite direction the current is moving. When the crust or mantle moves. Stress is released causing earthquakes and volcanos erupting with magma from below the very ground you walk on.
Which two biomolecules aid in energy storage?
Make a claim explaining why it is important for gametes to be haploid. What
would happen if gametes were diploid? Use evidence to support your claim
Somatic cells are diploid(they have 2n chromosomes) while gametes are haploid(they have n chromosomes). During fertilization two gametes fuse to form a diploid cell(n+n=2n). If gametes were diploid(2n chromosomes) every generation the number of chromosomes would double (2n+2n=4n)
Somatic cells are diploid(they have 2n chromosomes) while gametes are haploid(they have n chromosomes).
What are Somatic cells?During fertilization two gametes fuse to form a diploid cell(n+n=2n). If gametes were diploid(2n chromosomes) every generation the number of chromosomes would double (2n+2n=4n).
The body's somatic cells are those that are neither sperm or egg cells (which are called germ cells).
Somatic cells in humans are diploid, which means they have two sets of chromosomes, one from each parent. Somatic cell DNA mutations can have an impact on an individual, but they cannot be passed on to the individual's progeny.
Therefore, Somatic cells are diploid(they have 2n chromosomes) while gametes are haploid(they have n chromosomes).
To learn more about somatic cells, refer to the link:
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Does a xylem
Hold on to the soil and absorb water or is a tube yo move water up to the plant?
Answer: As a plant you have roots to absorb water. The xylem of a plant is the system of tubes and transport cells that circulates water and dissolved materials.
Explanation:
Which best describes absolute dating?
comparing fossils found in rock layers
using radioactivity to find the age of a rock in years
placing events in the correct sequence or order
using the law of superposition