Answer:
1-Those diseases which can be transferred from one person to another person are called communicable diseases . Examples-Common cold ,HIV,chicken pox
2-Algae- spirogyra,volvox
fungi-yeast,mushroom
protozoa-plasmodium,amoeba
3-pasteurization, heat-treatment process that destroys pathogenic microorganisms in certain foods and beverages.
Which function involves the circulatory system working with the respiratory system?
A. Lowering body temperature
B. Enabling cellular respiration
C. Stopping bacterial infection
D. Maintaining liver function
The function involves the circulatory system working with the respiratory system is Enabling cellular respiration. Thus, option "B" is correct.
What are circulatory and Respiratory system?Respiratory system is a set of organs which help in the exchange of gases in the body. They bring oxygen from outside into the body and release carbon dioxide from inside the body to the outside world. The exchange of the gases takes place at the alveolar site (or gills in aquatic animals).
The circulatory system then carries this oxygen (mixed in blood) from gas exchange site to all the cells of the body. In addition, it also brings carbon dioxide (waste product of cellular respiration) from all the cells to the gas exchange site (respiratory system).
Thus, option "B" is correct.
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which of the following best describes what happens during a crossover event
a. tetrads change orientation as a lineup along the center of the cell
b. chromatids of homologous chromosomes exchange corresponding segments
c. X and Y sex chromosomes overlap and combine together during metaphase
d. spindle fibers overlap and attach to the wrong chromosomes during anaphase
Answer:
tetrads change orientation as a lineup along the center of the cell
Describe the political actions that led to successful conservation in the forest industry. Think about ORGANIZATIONS from each article.
flvs for 4.01 and forests wisely
The political acts that sparked discussion about success in the woodland industry are What they refer to as a company obtaining a production facility, which can make the forestry business successful and real.
What societal challenges are political parties helping with?Social issues including poverty, a lack of awareness, the inability to meet basic needs, etc. had an impact on the problem or the solution in the stories, such as How to Use Timberlands Wisely and Local Area Protection.
Due to the fact that these problems forced people to indiscriminately use the land and cut down trees in order to meet their basic needs, which improved the general public's economic well-being.
People in the backwoods chopped trees because they were in need and offered them to bring in money to buy food and other essentials for their families.
There is no need to cut down trees or use land, assuming that these social issues are resolved.
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How does radioactive dating provide support for the biological theory of evolution?
A. It allows biologists to organize a series of fossils by their age.
B. It allows scientists to determine where a species evolved.
C. It helps biologists to piece together strands of DNA.
D. It helps scientists to identify the chemicals in organisms.
Explanation:
A. It allows biologists to organize a series of fossils by their age
What is the purose of using multiple control groups in an experiment?
Answer:
well the answer is yellow
Explanation:
Which of the following is not true about capitalism?
Group of answer choices
all costs and benefits are internal
focused on wealth and job creation
growth is essential for capitalism to thrive
Resources are finite
Answer:
I think it is D. sry if i'm wrong
I need help with this plsss!:)
Answer:
D
Explanation:
The other options are illogical and D is the only one relating to plants.
Lawmakers discuss methods of preventing pollutants that could directly start a positive feedback loop in the area shown in the picture.
Which of these actions should they take?
A. Pass laws to help decrease soil erosion and fertilizer runoff.
B. Ban the composting of food waste and paper products.
C. Increase funding for coal and natural gas technology.
D. Regulate the number of jets flying in the upper troposphere.
Answer:
D. Regulate the number of jets flying in the upper troposphere.
Develop a mind map representing the narrative of the historical development of technology and the impact of IKS throughout the history of humanity.
Indigenous Information System (IKS) is the body of knowledge that communities have accumulated over many generations as a result of their interactions with the environment.
Indigenous Knowledge System (IKS): What is it?The technological, economic, philosophical, educational, and governing systems are all included in the indigenous knowledge system.
Prior to the development of the contemporary scientific knowledge system, indigenous societies established their own knowledge, which is included in indigenous knowledge systems (IKS).
Acupuncture from China is an illustration of IKS. Through the preservation and wise use of biodiversity, it may significantly advance sustainable development.
There is a definite need to preserve these systems, acknowledge their worth, and stop their destruction in order to strengthen indigenous knowledge practices and cultures.
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this element was poisonous to the first forms of life on earth until they evolved to tale advantage of it by using cellular respiration. What is it?
Answer:
Oxygen
Explanation
Cellular respiration means taking Oxygen and using it to "breathe" and also be used in many other processes.
. Conduction of heat takes place only in .......
a Solids
b) Liquids
c) Gaseous
d) air
Answer:
Option A: Solids
Explanation:
Due to the fact that heat is transported from a hotter body to a cooler body when two objects are kept in thermal contact, conduction only occurs in solids and not in liquids or gases. Conduction is the term for this mechanism, which uses the same body temperature. When two bodies remain together during conduction to transfer heat In order to transmit heat energy quickly and more efficiently, the molecules of both entities vibrate and collide with one another. Since solids have compactly packed molecules, this allows the molecules to vibrate more and transfer heat more effectively than liquids and gases. When molecules in close proximity to one another clash, energy is transferred. Due to the molecules' near closeness and, in the case of crystals, their clearly defined structure, this occurs very readily in a solid. A few things alter when heat transport in liquids and gases is taken into account. The molecules are not as close together, and gravity has a particular, confusing influence. Heat is transferred through collisions of nearby particles in a process known as convection. The metal surface particles are transmitting heat to the liquid through conduction at the metal-water interface if convection is occurring between a solid that is hotter than the liquid adjacent to it, such as a pan on the stove. But when that occurs, the water's density begins to alter. The water molecules at the surface move faster, contain more energy, and occupy more space per mass (they are less dense). Because water molecules may pass one another and gravity makes this easier, the less dense water near the metal surface is replaced by the more dense water above it. Natural convection is the mechanism through which a liquid or gas moves in this manner as a result of variations in density. Conduction is no longer possible unless you can prevent the effect of fluid density on the flow of gases or liquids. Fundamentally, in both liquids and gases as well as solids, molecules continue to exchange energy through collisions. Conduction, however, performs this considerably more effectively in liquids at the metal-liquid contact and less so as you travel away from the interface and upward through the liquid. Convection is the movement of particles to transfer heat.
Bottom Line: Conduction may occur in gases and liquids, but you must be able to reduce the impact of gravity. These are known as "stagnant fluids." Convection is the term used to describe fluid movement caused by density variations when they are not prevented.
Question 18 of 25
Which of these natural events is most likely to cause a primary disturbance in
an ecosystem?
A. Immigration of an invasive species
OB. Extended drought
OC. Tropical storm
OD. Volcanic eruption
How would our interaction with the suns energy differ if our magnetosphere disappeared?
Answer:
Enveloping our planet and protecting us from the fury of the Sun is a giant bubble of magnetism called the magnetosphere. It deflects most of the solar material sweeping towards us from our star at 1 million miles per hour or more. Without the magnetosphere, the relentless action of these solar particles could strip the Earth of its protective layers, which shield us from the Sun’s ultraviolet radiation. It’s clear that this magnetic bubble was key to helping Earth develop into a habitable planet.
What kind of organ is this? And what structures are seen?
Answer: Liver.
Explanation:
Chronic Passive Congestion.
two different groups of scientists predicted regional climate changes for California and came up with contradictory (different and opposing) results. Explain how this could happen...
Two different groups of scientists came up with contradictory regional climate changes as there are many climate zones in California based on latitude, altitude, and distance from the coast.
What climate zones are in California?Depending on latitude, height, and distance from the coast, the climate in California varies greatly, ranging from sweltering desert to alpine tundra. The coastal areas of California, the foothills of the Sierra Nevada, and a large portion of the Central Valley have a Mediterranean climate, which features warmer, drier summers and cooler, wetter winters. In coastal places, the influence of the ocean often moderates temperature extremes, resulting in milder winters and noticeably cooler summers.
The reason for this is the geographic location of the state, which stretches roughly between 32° and 42° north latitude.
Unique topographical features as well as a variety of bedrock and soil types have been produced as a result of glaciation, sedimentary and volcanic deposits, movement along fault zones, the uplift of subsurface rock and sediment layers, and progressive erosion. The topography and geography of the state have produced several local climates.
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Water bends light. This type of bending is called refraction. The drawing tool shows a penny submerged in water, but only part of the path of the light ray is shown. How could the light ray bend as it enters and leaves the water so that you can see the penny at position B? Draw the missing parts of the light ray so the penny is visible at position B.
Water makes the penny visible by bending the light rays towards the normal.
What is refraction of light?Refraction is the bending of light rays as it crosses the boundary of media of different densities.
The ability of water to to bend light is employed in making a penny visible when water is added to container container a penny which was not visible initially.
Therefore, water makes the penny visible by bending the light rays towards the normal.
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define plasma osmolality
A scientist wants to test the effect of water temperature on the success of developing frog embryos. The scientist monitors developing embryos in different water temperatures and counts the number of embryos that mature into tadpoles.
Why should the scientist keep all variables except water temperature constant?
to ensure at least some embryos develop into tadpoles
to protect the developing embryos
to test multiple variables at once
to ensure that the results only reflect changing temperature
The scientist should eep all variables except water temperature constant because to ensure that the results only reflect changing temperature. Thus, the correct option is D.
What is Embryo?An embryo may be defined as an unborn or unhatched offspring in the process of development. It is also characterized as the early stage of the development of multicellular organisms.
Here, scientists should keep all the variables except water temperature constant because they are analyzing the effect of only water temperature on the growth and maturation of a frog's embryo into mature tadpoles.
Therefore, it is well described above.
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what will happen to the length of the day if the earth didnt have a tilt.
5 Renwable energy resources will . . . . . . . . . run our. (eenvr
Renwable energy resources will never run out .
View attachment.
Select the TRUE statement(s)
- K.C was unable to recognize his family and usually forgot his name
-K.C’s bilateral hippocampal damage probably accounts for his anterograde declarative amnesia
-K.C’s case suggests that NO declarative memories are stored in the cortex
Helppp match the definitions :)
Answer:
1. Amino acid
7. RNA
5. Nucleic acid
3. DNA
6. Protein
2. Catalyst
8. Substrate
Explanation:
1. AMINO ACIDS are the basic building block of proteins; they contain a carboxyl group (-COOH) and an amino group (-NH 2) in their structure. 2. A CATALYST is any substance that accelerates a chemical reaction without being used up in the reaction. They do this by lowering the activation energy of the reaction. 3. Deoxyribose nucleic acid (DNA) is a complex molecule containing the genetic code. It carries all the genetic information of living organisms. 4. AN ENZYME is a protein molecule that is specialized to speed up a specific chemical reaction in biological systems. It is referred to as a biological catalyst because it speeds up a chemical reaction in living systems. 5. NUCLEIC ACID is a sequence of sugars, phosphates, and nitrogenous organic bases. A nucleic acid (DNA and RNA) is a polymer of nucleotides, which are composed of the three molecules mentioned above. A sequence of nucleotides forms a NUCLEIC ACID. 6. PROTEIN is a large, complex organic molecule consisting of a large number of amino acids linked together by peptide bonds. The amino acid building blocks are linked together in a condensation reaction and catalyzed by Peptidyl transferase enzyme. 7. Ribonucleic acid (RNA) is a type of nucleic acid that participates in the synthesis of proteins. RNA is of three types viz: mRNA, rRNA and tRNA. They all play a role in the process of protein synthesis. 8. A SUBSTRATE is a compound that is involved in a chemical reaction and is chemically changed by the reaction. The substrate usually forms part of the reactant that yields the product.
(see attached)
A student, who is studying two different cells A and B in cell cycle, notices that cell A has 5 picograms of DNA while cell B has 10 picograms of DNA. Both cells are from the same organism. Which of the following is the best description of the cell cycle stage of each cell?
A. Cell A is in prophase of mitosis; Cell B is in metaphase of mitosis.
B. Cell A is in G1 phase; Cell B is in G2 phase.
C. Cell A is in G1 phase; Cell B is in between G1 and S phase.
D. Cell A is in G2 phase; Cell B is in G1 phase.
Answer:
As the cell enters meiosis 1, it's DNA replicates in S phase and then reduces to half when the cell splits into two. Hence, the amount of DNA remains 10 pg.
During meiosis 2, there is no DNA replication but only division between cells, leading to 5 pg of DNA in all four daughter cells.
So, the correct option is '10 pg and 5 pg respectively'
What is located in your upper arm
Answer:
the humerus
Explanation:
Which indicates how evidence of climate change supports the theory of continental drift?
O coal fields in several continents
O volcano formation
O glacial evidence found in South Africa
O folded mountains in Africa and South America
Glacial evidence discovered in South America demonstrates how climate change evidence has bolstered the notion of continental drift. Folded mountains in Africa and South America. Thus, the correct option is D.
Climate change is happening all across the planet on a daily basis. This is primarily due to human activities that have had an impact on the atmosphere and the earth.
What is continental drift?Continental drift is basically the hypothesis that the continents once constituted a single landmass, disintegrated, and drifted to their current places.
The discovery of glacial evidence in South America has led to a greater acceptance of the continental drift idea.
Finally, we can conclude that glacial evidence discovered in South America demonstrates how climatic change evidence supports the hypothesis of continental drift.
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Answer:
option d is the correct awnser
Explanation:
O folded mountains in Africa and South America
What is the cause of lightning?
A. The different elevations of a cloud and the ground
B. Airflow between a cloud and the ground
C. Varying air pressure underneath a cloud
D. Different charges on the ground and the bottom of a cloud
Answer:
The different elevations of a cloud and the ground
Two related populations separated by a mountain range for many generations eventually become different species providing an example of what type of speciation
Two related populations separated by a mountain range for many generations eventually become different species is an example of Allopatric type of speciation.
What is Allopatric speciation?Allopatric speciation is a type of speciation that occurs when a species separates into two separate groups which are isolated by a physical barrier from one another.
So we can conclude that two related populations separated by a mountain range for many generations eventually become different species is an example of Allopatric type of speciation.
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The island biogeography model explains
A. the amount of water that surrounds an island
B. the effect the mainland has on the surrounding islands
C. factors affecting the number of different species in a region
D. geographical features of an island
Question 7 of 10
The description below is about a community in a poor country in need of
certain basic necessities.
A village is without electricity and running water but is far from the ocean in a
warm climate. Food is limited and farming is close to non-existent because
there is no access to a water supply. The only nearby water is deep
underground.
Given the problems of the village, which technology is best for quickly
improving its carrying capacity?
A. Building a plant that takes salt out of water
OB. Drilling for water
OC. Designing a plant that uses water to make electricity
OD. Farming using vertical buildings
4
SUBMIT
Answer:
OB
Explanation:
the people in the village has a only one option to drill a place where the water well is deep and connects submissive pump in the well and connects a PVC to where ever you want to send water
Term Definition
7. Independent variable a. The number of unpopped popcorn kernels
8. Controlled variable b. The brand of popcorn
9. Responding variable c. The time the popcorn is cooked
The terms with respect to their definitions are matched below:
Independent variable: The time the popcorn is cooked. Controlled variable: The brand of popcorn. Responding variable: The number of unpopped popcorn kernels. What is an Independent variable?An independent variable may be defined as a variable that stands isolated and isn't altered by the other variables you are trying to measure in your experiments.
A controlled variable may be defined as a variable that remains unchanged during the course of whole experiments.
A responding variable may be defined as a variable that responds according to the effect of controlled and independent variables.
Therefore, it is well described above.
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