Answer:
The group which would be the least affected by air pollution are C. teenagers. This is because their respiratory systems have already been established and are quite strong because they are still young and healthy. People with asthma already have troubles breathing, so obviously air pollution is going to be a problem.
Explanation:
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experiment yeast fermentation ，what is the purpose of boiling the glucose solution earlier？
Answer:
The correct answer is - to sterilize it and remove any oxygen.
Explanation:
Boil the glucose solution to sterilize it and remove any oxygen, leaving behind the glucose needed for anaerobic respiration. High temperature kills all the microbes and sterilizes the solution.
Boiling the glucose solution earlier also helps in removing the oxygen from the solution for preparing the anaerobic respiration in the experiment desired. Sterilization of the solution also helps it in avoiding any microbes to present in the solution and affect the experiment.
1. Which of the following best explains how
behaviors, such as swarming and flocking, help
protect organisms?
a. Individuals in swarms or flocks act as decoys
to distract predators.
b. The movement and size of the swarm
or flock confuses predators.
c. Working together in swarms or flocks
requires less energy
d.The size of most swarms and flocks
can overtake larger predators.
The female gametes are called__________. *
sperm
ova
Answer:
Woman's gametes are called Ova. Sperm is what a mans gamete is.
Explanation:
When the ocean absorbs CO2 it leads to what?
Explanation:
Each liquid falls somewhere along a scale with acid at one end and alkaline at the other. Normally, ocean water is less acidic than fresh water. Unfortunately, as the ocean absorbs more and more carbon dioxide from the atmosphere, it becomes more acidic. Lemon juice is an example of an acidic liquid.
Answer:
If the ocean absorbs a lot of CO2 it is most likely to become acidic
Which of the following is one way that humans can protect biodiversity?
What changes when a cell divides into two daugther cells to make it easier for the cells to exchange materials across the surface of the cell? A. Cell division does not make it easier to transfer materials across the cell surface. B. The new cells move materials faster. C. Each new cell has an increased surface area to volume ratio
The new cell has an increased surface area to volume ratio is a process that makes easier the exchange of materials across the surface of the cell (Option C).
What is cell division?Cell division is the process by which cells generate new daughter cells, which may be due to mitosis or meiosis in higher organisms.
Cell division is able to increase the surface/volume ratio and therefore it facilitates the movement of materials in the resulting cells.
In conclusion, news cell has an increased surface area to volume ratioand it makes easier the exchange of materials (Option C).
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Please helppp
Answer:
“Hard limits” to population growth are things like food, water, energy, technology, living space, other basic needs and economic factors which limit people’s ability to access these things.
“Soft limits” to population growth are things like education, birth control, the desire for a better life individually and a better global future for humanity, religious celibacy or chastity or abstinence, female empowerment and economic participation, the suffering already caused by overpopulation and the desire to avoid further suffering, malnutrition or non-lethal starvation which reduces sexual libido, pollution and other man made causes of involuntary sterility or low sperm count or low fertility, desire to save the environment, aversion to pain and suffering when understood that population growth causes both.
Countries with better quality of life and access to food and basic needs often have lower birth rates and lower population growth. This shows that soft limits can actually be more effective than hard limits to stop population growth. You have plenty of countries in Africa running into hard limits and having some of the highest fertility and population growth rates at the same time. They also suffer massive problems like war, poverty, disease and low standard of living. This goes to show that running into the hard limits will pretty much let things get as bad as they can get before it stops population growth. The hard limits won’t stop all the suffering caused by overpopulation but will make enough people suffer TO DEATH that the population doesn’t grow. People fear pain, thus the soft limits are more effective when they understand that population growth was responsible for pain or suffering and avoid it.
Absorbe nutrientes por medio de micro vellosidades que recubren y aumentan la superficie de absorción
Sobre la pregunta:
Cucigrama. Pregunta 1 vertical. Absorbe nutrientes por medio de micro vellosidades que recubren y aumentan la superficie de absorción
Answer:
Intestino delgado
Explanation:
El intestino delgado es el organi mas largo del tubo digestivo, pudiendo medir 7 metros de longitud y 3 cm de diametro. Se caracteriza por estar sumamente plegado sobre si mismo. La primera porcion, llamada duodeno, recibe secresiones de glándulas biliar y pancreática, y las mezcla con enzimas digestivas. Esta mezcla se encarga de degradar la comida y transformarla en sustancias solubles, como amino ácidos.
Es en el intestino delgado donde ocurre la absorción de nutrientes. Las paredes intestinales estas cubiertas por microvellosidades que aumentan la superficie de absorción.
Las microvellosidades son células que componene el epitelio columnar, y que extienden proyecciones hacia el lumen del organo.
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For the compound C₆H₁₂O₆, what type of bond would join the elements and why?
1. covalent because an electron is transferred from a C atom and O atom to a H atom.
2. covalent because electrons are shared between the C, H, and O atoms
3. ionic because an electron is transferred from a C atom and O atom to a H atom.
4. ionic because electrons are shared between the C, H, and O atoms
Answer:
4. Ionic bond because electrons are shared between the C,H and O atoms.
Explanation:
The atomic no. of carbon=6
Electronic configuration=2,4
The atomic no of H=1
E.C=1
The atomic no of O=8
E.C= 2,6
Therefore to attain octate state, they will share electrons
Answer:
4. Ionic bond because electrons are shared between the C,H and O atoms.
Explanation:
Took the test.
Which of the following is NOT a type of wetland?
a: marsh
b: bog
c: swamp
d: pelagic
Explanation:
i have no clue, but good luck, hopefully you pass the test
Underground water is an example of
A) a hidden water source
B) a untapped water
source
C) an unusable water source
D) a high salinity water source
Answer:
i think its a hidden water source
In order for water to collect in earths atmosphere and form clouds it must first undergo what process?
A) condensation
B) convection
C) evaporation
D precipitation
Answer:
The answer is D: Precipitation
_______________________ is an animal's ability to blend into its surroundings.
a
artificial selection
b
evolution
c
natural selection
d
camouflage
[tex] \huge \color{magenta}{ \boxed{ \large \sf \color{blue}{d. \: Camouflage}}}[/tex]
Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid's wings.Biology - Genetics
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Answer:
what type of question it is
Describe the scales that scientists use to measure the magnitude of an earthquake
Answer:
the ritcher scale the mercalli scale magnitude scale
blue, light blue, yellow, or red
HURRY
Answer:blue
Explanation:
Which organisms break down decaying organisms and produce an inorganic nutrient pool in ecosystems?
Group of answer choices
secondary consumer
decomposers
primary consumer
producers
Answer:
Decomposers
Explanation:
Decomposers eat decaying or dead organisms to produce the nutrients.
What is the purpose of the digestive system?
1. Create energy
2. Swallow food
3. Break down food so nutrients can be absorbed
Answer:
3. Break down food so nutrients can be absorbed
Explanation:
the reasoning is when you digest something your body is breaking down the food into small chuncks so that the nutrients can be absorbed easier
what is the name of the fluid found in the gall bladder
Answer:
"Bile" is what that fluid is called
Cuando se excita una neurona con estímulos de intensidad creciente se obtiene, a partir del umbral, la misma respuesta eléctrica. En esta situación se pone de manifiesto la característica de: *
A) ley del todo o nada.
B) período refractario relativo.
C) período refractario absoluto.
D) excitabilidad.
E) umbral de excitación.
Answer:
d) excitabilidad
Explanation:
creo que seria esa no lo sé
no se mucho de eso
me dices si sale buena o mala
Which of the following best describes what carrying capacity is?
A
The quantity of marine life a limited water resource can sustain.
B
The maximum number of a population that an ecosystem can sustain.
C
The total amount of greenhouse gases a specific ecosystem can sustain.
D
The minimum number of predators a specific geographic area needs to sustain itself.
B. The maximum number of a population that an ecosystem can sustain.
Como se chama a transferencia de enrgia termica flui de um corpo com maior temperatura quando ao outro de menor temperatura quando ha diferença de temperatura entre ambos
Answer:
Conduction.
Explanation:
Conduction is the process in which heat energy is transferred from the hotter body towards colder body because of temperature difference between two bodies. Conduction occurs only due to physical contact between two bodies. In the conduction process, the thermal energy flows from a body with a higher temperature to the other body having lower temperature until both bodies having same temperature.
Organisms of either extreme characteristic dying out while organisms with the medium characteristic have a higher fitness is identified as?
Answer: Stabilization selection
Explanation:
Natural selection involves the differential survival and growth of organisms which have suitable traits to survive in unfavorable or adverse environment. Such traits are passed on to the next generation. Stabilization selection is a type of natural selection in which the nature selects the non-extreme phenotypic traits. Middle traits are selected and such organisms grow and reproduce. Example can be given that of human babies in which babies with low weight lose more heat and babies with high weight are difficult to be delivered from the pelvis. Therefore, babies with middle weight are expected to survive more than that of low or middle weight.
which is the method of estimating fish in a pond
Explanation:
There is a popular sampling method called capture – recapture or 'Lincoln Index' or 'Pieterson's Method' which is used to estimate the size of an animal or human population.
Which gas is used by humans in the process of cellular respiration?
Answer: Oxygen
Explanation:
During the process of cellular respiration, carbon dioxide is given off as a waste product. This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates. Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.
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Answer:
oxygen
Explanation:
we breathe it in during cellular respiration
_____________________________ is famous for his work on natural selection.
a
Charles Darwin
b
Henry Cavendish
c
Babe Ruth
d
Isaac Newton
Answer:
a
Charles Darwin
Explanation:
Explain how advancements in engineering and technology over the years have allowed scientist to learn about mars and earths moon.
Telescopes on Earth and in orbit around Earth provide scientists with information about our solar system. That information is used to plan where spacecraft fly and where they “point their cameras.” NASA and other agencies send robotic spacecraft to fly by, orbit, or land on other planets and moons.
The cell cycle is the life of the cell from the time it is first formed from a dividing parent cell until its own division into two cells
Explanation:
cell cycle is made up of three main parts: interphase, mitosis, and cytokinesis. Most biologists agree that interphase makes up the period of time that a cell would be preparing for cell division. Cells spend the majority of their lives in this stage. During interphase a cell is going to be growing, replicating its genetic material and essentials to carry out cell division, and proofreading the genetic material to ensure replication has occurred correctly. This doesn’t sound like much, but it’s actually the longest part of the cell cycle. Once this is complete, the cell will then go through cell division and, theoretically, split into two new cells (cytokinesis).
How cytokinesis works will depend upon the type of cell that is dividing. Here is an image that summarizes the differences in cytokinesis in plant cells and animal cells, which is the classic example used in many introductory biology courses:
A scientist is examining cells under a microscope. Which would best help the scientist identify the tissue as plant or animal?
A. The presence or absence of a cell wall
B. the presence or absence of DNA
C. Plant cells would be green
D. Animal cells would contain a nucleus
SORRY FOR THE LITTLE POINT PLEASE ANSWER ITS DUE IN 2 MINUTES
Answer:
I think the answer is A
Explanation:
The presence or absence of a cell wall is examining cells under a microscope.
What is Cell wall?Cell walls are a specific type of extracellular matrix that cover every plant cell. Many of the traits that set plant cells apart from animal cells are caused by the cell wall.
The cell wall serves a variety of activities that are essential to plant life, despite being frequently thought of as an inert product used only for mechanical and structural purposes.
These include: giving the living cell mechanical defense and a chemically insulated environment; offering a porous medium for the circulation and distribution of water, minerals, and other small nutrient molecules.
Therefore, The presence or absence of a cell wall is examining cells under a microscope.
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For recessive trait to be expressed you need to receive the allele from both parents. True or false
Answer:
When a trait is recessive, an individual must have two copies of a recessive allele to express the trait.