Answer:CD4, or helper, T cells coordinate the immune response. These are the primary targets of HIV. As the virus destroys CD4 cells, people become susceptible to opportunistic infections and cancers
Explanation:
13)
The bacteria that cause tetanus can survive in a puncture wound that has healed on the outer
surface of the skin in an environment without oxygen present. Through what process do these
bacteria acquire the energy they need to survive?
A)
Aerobic respiration
B)
Anaerobic respiration
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1:29
C)
Photosynthesis
D)
Homeostasis
Answer:
B)
Anaerobic respiration
Explanation:
All living organisms require energy for survival. They obtain this energy via the process of cellular respiration, where they breakdown the energy in their ingested food. However, the process of cellular respiration can either be aerobic (with oxygen) or anaerobic (without oxygen).
Anaerobic respiration is carried out by organisms who do not require OXYGEN for the process. This is the case of the bacteria described in this question which survive in a puncture wound that has healed on the outer surface of the skin in an environment without oxygen present. The type of respiration carried out by this bacteria is ANAEROBIC RESPIRATION.
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION THANK YOU !!!
about what percent of americans get their water from wells?
a)100%
b)50%
c)0%
d)5%
Private wells are the main source of water for about 5% of Americans. These wells often draw water from underground aquifers and are located on private land. Therefore, the correct option is D.
In different parts of the United States, the use of wells may vary, with rural communities more likely to rely on wells for their water supply. Drilling or digging are common methods for obtaining water from a well, and maintaining water quality and safety is the responsibility of homeowners. The choice of using wells is influenced by factors such as location, access to public water systems, and local laws. Well owners must frequently test their water to ensure that it complies with health and safety requirements.
Therefore, the correct option is D.
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Which fearured listed is not part of the growndwater system
A. Confined aquifer
B. Underground spring
C. Lake
Answer:
its B underground spring
Toby is a 16 year-old, pimple-faced boy, who has been working after school at a local pizzeria trying to make a little money for his new guitar.
2 days ago, Toby was working in the kitchen, shredding pounds and pounds of cheese for pizza. The cheese was used to prepare pizzas for many customers.
Today, the pizzeria got many phone calls with complaints from customers experiencing nausea, vomiting, and diarrhea, blaming their symptoms on the pizza they ate yesterday.
Explain, what could have happened here. Which bacteria do you think, caused these symptoms, how, and why?
The largest organism of the prokaryotic system is the free-living cells called bacteria. They are microscopic and cannot be seen with barred eyes. They have diverse living conditions in which they can survive.
The bacteria that caused the symptom is Cutibacterium acnes.
Cutibacterium acnes or Propionibacterium are bacteria that flourish on the skin cells and causes acne.There is a possibility that one of his acne could have burst or he might have touched the popped acne and sprinkled the cheese with the same hands.The bacteria would have started replicating on the cheese and made the customers sick.Therefore Cutibacterium acnes are the reason for these symptoms.
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A bottle of water left open for several days is now empty. Why? A. The particles lost enough energy to turn to liquid. B. The particles lost enough energy to turn to gas. C. The particles gained enough energy to turn to liquid. D. The particles gained enough energy to turn to gas.
Answer:
D
Explanation:
diagram the genotypes of the P1 pea plants from the previous four questions by placing the correct on the correct place
Answer:
Hope this helps!
Explanation:
This rock was formed by smaller pieces of rock that settled at the bottom of the lake millions of years ago. what type of rock is this?
Answer:
sedimentary rock
Explanation:
Answer:it would be a igneous rock.
Explanation:cause i just took a test and it was on there
This climate is considered tropical wet with temperatures between 68°F to 93°F and an annual precipitation of 50-260 inches. There is often a short season of less rain, or sometimes in areas with monsoon seasons, a short period of no rain. The soil contains very little nutrients because the trees quickly absorb all the nutrition out of the ground. A great amount of sunlight reaches the upper canopies, but very little sunlight filters down to the understory and forest floor. These are all characteristics of the _______ biome. a. deciduous forest b. alpine forest c. rainforest d. savanna
Answer:
C
Explanation:
edge2020
what is respiration
Answer:
process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
At certain steps along the electron transport chain, electron transfer causes protein complexes to move H from the mitochondrial matrix (in eukaryotes) to the intermembrane space, storing energy as a proton-motive force (H gradient). As H diffuses back into the matrix through ATP synthase, its passage drives the phosphorylation of ADP.
What is the name of this process?
Answer:
hum let me think about this one ok here's the answer to you question Answer:
Electron transport chain and chemiosmosis/ oxidative phosphorylation
Explanation:
Two stores sell CDs in packages, as shown in the table below.
CD Prices at Store A
Number of CDs in Package
1
12
20
45
Cost
$0.70
$8.40
?
$31.50
CD Prices at Store B
Number of CDs in Package
1
20
30
65
Cost
$0.60
?
$18.00
$39.00
Answer:
10. 50 ehaisnenhsiwolen br isiwokneb
please help meee
3. Atoms are composed of
A. protons, neutrons and negatons
B. positons, neutrons and electrons
C. protons, notrons and electrons
D. protons, neutrons and electrons
Answer:
D.
Explanation:
protons and neutrons are located in the center and electrons are located a bit further away but still is a part of the atom as it revolves around it
BabyGrl32 Answer quick pls
Answer:
OK I SEE A TRUE XXXTENTACION FAN
RIP X
Explanation:
Answer:
b
Explanation:
What day does summer begin in the southern hemisphere
answer options:
A. June 21
B. March 21
C. December 21
D. September 21
Answer:
The answer is C December 21
Explanation:
Answer:
June 21 trust me i got it right on edge
Explanation:
Which of these explain why Landon has his fathers fathers curly hair and his mother nose?
A: He is prokaryotic
B: He is the product of sexual reproduction
C: His father is older than his mother
D: He was formed by binary fission?
The statement that best explains why Landon has his father's curly hair and his mother's nose is that he is the product of sexual reproduction. Thus, the correct option for this question is B.
What is Sexual reproduction?Sexual reproduction may be defined as a type of reproduction through which the production of new organisms by the combination of genetic information of two individuals of different sexes.
The mechanism of sexual reproduction is observed in most species in which the genetic information is carried on chromosomes in the nucleus of reproductive cells called gametes, which then fuse to form a diploid zygote.
Sexual reproduction leads to genetic variations in which the phenotypes and genotypes of the offspring vary a lot.
Therefore, the statement that best explains why Landon has his father's curly hair and his mother's nose is that he is the product of sexual reproduction. Thus, the correct option for this question is B.
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Explain why energy transfer between trophic levels are not vwry efficient (around 10%)?
Explanation:
The energy transfer between trophic levels are not vwry efficient (around 10 %) energy is lost when one trophic level goes to a level higher. This is due to the fact that organism is not fully decomposed and also heat is lost in the conversion from the organism to energy to the consumers.
Can anyone please help with these three questions? Thanks! The first and correct answer will receive brainliest!!! Please please help
Which human activity has the most impact on the quality of water of a stream?
A: Increasing the chemical we throw in the water.
B: Releasing laundry detergent into our streams.
C: Not using fertilizers near the stream
D: Water that has been heated and cooled.
Which human activity affects the quality of drinking water?
A: cutting down trees
B: allowing chemical plants to burn fossil fuels in the air
C:leaving trash outside for animals to eat
D: runoff containing fertilizers and pesticides that will seep through our soil.
How does the industrial and agricultural activities affect our watersheds?
A: By allowing the water cycle to evaporate the water.
B: By allowing pollutants to seep through our soil to our groundwater.
C: By burning fossil fuels
D: All of the above.
How does the industrial and agricultural activities affect our watersheds?
A: By allowing the water cycle to evaporate the water.
B: By allowing pollutants to seep through our soil to our groundwater.
C: By burning fossil fuels
D: All of the above.
Answer:
for the last one its d
Explanation:
How does Molecular Determinants of Scouting Behavior in Honey bees relate to our discussion about juncos in our last class?
We cant answer this because we are missing the information of what was talked about in your last class, sorry mate
How is the absorption of ultraviolet light by DNA and RNA important in the analysis of nucleic acids? A. Nucleic acids absord UV licht maximaly at wavelengths of 247 to 250 m Using this phenomenon one can oftendermine the presence and concentration of nucleic acids in a mixture, since proteins absorb UV light maximally a 200 m B. Nucleic acids absorb UV light maximaly at wavelengths of 254 to 260 proteins absorb UV maximally at 200 mm m. Using this phenomenon, one can to determine the presence and concentration of nucleic acids in a mixture, since C. Nucleic acids absorb UV light maximalyal Wavelengths of 254 to 280 nm. Using this phenomenon one can hen determine the presence and concentration of nucleic acids in a since proteins absorb UV light maximally at 270 mm D. Nucleic acids absorb UV light maximally at wavelengths of 247 10 250 nm. Using this phenomenon, one can often farmine the presence and concentration of nucleic acids in a mixture, since proteins absorb UV light maximally at 270 nm
Answer:
B. Nucleic acids absorb UV light maximally at wavelengths of 254 to 260. Proteins absorb UV maximally at 200 nm. Using this phenomenon, one can to determine the presence and concentration of nucleic acids in a mixture.
Explanation:
The concentration of a solution of nucleic acid can be determined by measuring the absorbance at 260 nm, using a spectrophotometer. An A260 of 1.0 is equivalent to a concentration of 50 μg/mL for double-stranded DNA, or 40 μg/mL for single-stranded DNA or RNA. If the A280 is also determined, the A260/A280 ratio indicates if there are contaminants present, such as residual phenol or protein. The A260/A280 ratio should be around 1.8 for pure DNA and 2.0 for pure RNA preparations.
Which of the following is not a concern associated with fossil fuel dependence?
a. global warming
b. rising prices
c. increased competition
d. increased development
Please select the best answer from the choices provided
А
Ο Ο Ο
B
Answer: increased devolopment
Explanation: right on ed2021 just took the quiz
The one that is not a concern associated with fossil fuel dependence is increased development. The correct option is d.
What are fossil fuels?The components of fossil fuels are decaying plants and animals. These fuels may be burned to provide energy and can be found in the crust of the Earth. An example of a fossil fuel is coal, as well as oil and natural gas.
Fossil fuels are resources that resemble rocks, gases, or liquids that are burned to produce electricity.
They are employed as energy sources in the electrical and transportation industries and include coal, natural gas, and oil. They are also a major contributor to the pollution that causes global warming.
Dependence on fossil fuels can raise issues such as global warming, price increases, greater competitiveness, and many others.
Thus, the correct option is d.
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the molecules made by living cells are mainly assembled around which element?
A. calcium
B. carbon
C. hydrogen
D. oxygen
Answer:
Carbon atoms B.
Explanation:
The atoms of an organic molecule are typically organized around chains of carbon atoms. Inorganic compounds make up 1%–1.5% of a living cell's mass. They are small, simple compounds that play important roles in the cell, although they do not form cell structures
6. Significant mass extinctions occurred during which of the following epochs?
O A. Triassic, Permian, and Cretaceous
B. Triassic, Permian, Cretaceous, Pleistocene, Ordovician, and Devonian
O C. Pleistocene, Ordovician, and Triassic
D. Ordovician, Triassic, Jurassic, Silurian, Eocene, and Oligocene
A scientist took notes on how a population of roseate spoonbills, a type of bird, adapted to a new environment. Which of her observations is a personal opinion
А This population of roseate spoonbills is eating about 100 fish a day.
B
This population of roseate spoonbills is less friendly than other populations
С
This population of roseate spoonbills is competing with a nearby population of green herons.
D
This population of roseate spoonbills is not building as many nests as it did in the other environment.
Answer:
B is the ANSWER!
Explanation:
Woo yeah thats the answer for ya'
Because the others are facts and that little guy is an opinion!
;)
Have a radical day dude bro!
Answer:
B I did this question befroe
b
What happened to the sun as the solar system was forming?
Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula.
With the rise of the sun, the remaining material began to clump together. Small particles drew together, bound by the force of gravity, into larger particles. The solar wind swept away lighter elements, such as hydrogen and helium, from the closer regions, leaving only heavy, rocky materials to create terrestrial worlds. But farther away, the solar winds had less impact on lighter elements, allowing them to coalesce into gas giants. In this way, asteroids, comets, planets and moons were created.
explain how it shows both and individual and a community
Answer:
The relation between individual and society is very close. Essentially, “society” is the regularities, customs and ground rules of antihuman behavior. These practices are tremendously important to know how humans act and interact with each other. Society does not exist independently without individual.
PLS ANSWER ASAP Which of the following would most likely cause a mutation?
The placement of ribosomes on the endoplasmic reticulum
The insertion of a nucleotide into DNA
The movement of tRNA out of the nucleus
The release of mRNA from DNA
Answer:
The insertion of a nucleotide into DNA
Answer:Acquired (or somatic)
Explanation:mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.
What is a all the interacting populations that live in the same
geographic location at the same time called? *
Organism
Population
Community
Ecosystem
Biome
Biosphere
Answer:
Community
Explanation:
In Ecology, a COMMUNITY refers to the collection of all populations of organisms living in the same habitat at a particular time. A community consists of the different population of organisms interacting in an area. For example, a community will include the population of lizards, termites, plants, fungi, trees species in an ecosystem.
Based on this, the interacting populations that live in the same geographic location at the same time is called a COMMUNITY.
Answer:
bioloical community or just community.
Explanation:
Community = A collection of several (or all of the) interacting populations that inhabit a common environment. Ecosystem = The interactions among populations in a community.
The answer is C I just wanted to answer it for you Let me explain why
Food provides glucose. This is because glucose is a type of sugar that we gain from the food we eat. It is also one of the two reactants in the cellular respiration equation. The two are glucose and oxygen. Therefore glucose would be the the answer because it is a reactant of the equations and therefore a part of cellular respiration.
Which explains why it is important to eat a full healthy meal before an afternoon of playing sports?
Food provides the carbon dioxide that is a product of cellular respiration.
Food provides the oxygen that is a product of cellular respiration.
Food provides the glucose that is a reactant in cellular respiration.
Food provides the energy that is a reactant in cellular respiration.
Answer:
thank you for explaining this it is very helpful :)
Answer:
this is correct i saw your comment. i got it correct tysm almost failed.
Explanation:
Many features distinguish modern humans from the nonhuman apes. However, only bipedalism and non-honing canines define hominins as a group. Identify the reasons why?
1) The proper taxonomic groups are most times always defined by the traits,these traits are the ones that are shared among members of the group eventhough they aren't found in species that are closely related.
2) The two traits are all common as they arise in the ancestors of all the hominins, however,they are not found in the nonhominins apes
3) The evolution of these hominins involved several changes that are different and that happened at different times,and only two of these features,out of all that we have evolved early enough to actually apply to all the hominins.
I’ll give brainiest if you’re correct
A key difference between daughter cells resulting from mitosis and meiosis is that:
A. After meiosis, cells are diploid. After mitosis, cells are haploid.
B. After meiosis, there are 4 daughter cells. After mitosis, is 1 daughter cell.
C. After meiosis, cells are haploid. After mitosis, cells are diploid.
D. After meiosis, there are 2 daugher cells. After mitosis, there are 4 daughter cells.
Answer:
i think it's C
Explanation:
meiosis is with sex cells and the resulting cells don't have paired chromosomes, making them haploid, and other cells have a complete set of chromosomes after mitosis, making them diploid.