Answer:
Water is more effective for evaporative cooling than liquid methane since, it would result in a higher temperature drop for the same mass of liquid methane.
Explanation:
Since the heat of vaporization of water is 540 calories per gram and that of liquid methane is 122 calories per gram, for each gram of the water evaporated, 540 calories is lost while for each gram of liquid methane evaporated, 122 calories is lost.
Since a higher heat loss would result in a higher temperature drop, water is more effective for evaporative cooling than liquid methane since, it would result in a higher temperature drop for the same mass of liquid methane.
PLS HELP QUICK ITS URGENT
George and Kyle were taking a quiz. This was item four:
Scientists just discovered a new kind of organism and gave it the common name blue spinner. Make one statement that must be true about the structure of a blue spinner.
George wrote, "A blue spinner is made of at least one cell."
Kyle wrote, "A blue spinner has tissues that perform specific functions."
Which of the responses is correct? Explain the error made in the incorrect response.
Answer:
George Is correct.
A blue spinner is made up of at least one cell.
Explanation:
George and Kyle took the quiz about the new kind of organism. The characteristics of this organism is not known as it has just discovered. George statement can be true about blue spinner as all living organism are made up of at least one cell. The blue spinner can be unicellular or multicellular organism which will be discovered later by scientists.
An individual way of life can be either unicellular or multicellular is called an organisms. It is a single entity that functions to live and survive.
The statement made by George is correct.
According to George blue spinner is made up of at least one cell. For an organism to be living it has to be composed of either one cell or multiple cells.As the new species discovered can be either multicellular or unicellular.Kyle's statement is incorrect as it is known whether the organism is a single or multi-celled structure as the deduction about tissues cannot be made.Therefore, George is correct and Kyle's is incorrect.
To learn more about organisms follow the link:
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A penumbral shadow is cast when the light source is smaller than the object.
True
False
Answer:
true
Explanation:
Answer:
The answer is false
Explanation:
The picture shows the internal structures of a plant leaf.
Image shows an internal structures of a plant leaf.
The survival function that occurs inside of these structures relies on which three items?
A. sunlight, oxygen, soil
B. oxygen, carbon dioxide, water
C. sunlight, carbon dioxide, water
D. water, xylem, soil
Answer:
I think the correct answer is C
1. Indicate if each of the following structures is based on actin filaments (A), microtubules
(M), or intermediate filaments (I). Your answer would be a five-letter string composed
of letters A, M, and I only; e.g. AAAMM.
( ) The cell cortex
( ) The mitotic spindle
( ) The nuclear lamina
( ) Cilia
( ) Filopodia
In corn, red kernel color (R) is dominant to yellow (r) and smooth kernel texture (W) is dominant to wrinkled (w).
Corn heterozygous for kernel color and kernel texture are interbred resulting in the following offspring.
330 red smooth
97 red wrinkled
101 yellow smooth
32 yellow wrinkled
Perform a Contingency Chi-Square analysis and determine if kernel color is independent of kernel texture.
a. Show your DF, chi square value, and p value
b. Do you reject or fail to reject the null hypothesis?
c. Is kernel color independent of kernel texture?
Answer:
a. df = 3, chi-square = 1.7333, p value = 7.815
b. we fail to reject null hypothesis
c. it is independent of kernel texture
Explanation:
h0; there is independence
h1; no independence
9:3:3:1 this is the phenotypic ratio
9+3+3+1 = 16
330 red smooth + 97 red wrinkled + 101 yellow smooth + 32 yellow wrinkled
total observed = 560
1. the degree of freedom = n-1
n =4, 4-1 = 3
to get the chi square computation
(O-E)²/E
expected value for red smooth,
9/16 x 560 = 315
chisquare = (330-315)²/315 = 0.7143
expected for red wrinkled
3/16*560 = 105
chisquare = (97-105)²/105 = 0.6095
expected for yellow smooth
3/16*560 = 105
chisquare = (101-105)²/105 = 0.1524
expected for yelow wrinkled
1/16 * 560 = 35
chisquare = (32-35)²/35 = 0.2571
total chisquare = 0.7143+0.6095+0.1524+0.2571
= 1.7333
with probability = 0.05, df = 3, the value of the chi square from x² table = 7.815
1.7333 < 7.815
so we fail to reject the null
c. we conclude that kernel color is independent of kernel texture
How do Euglena and sperm cells use flagella?
As Following:
Euglena move by a flagella , which is a elongated whip-like network that functions like a little engine. The flagella is located on the front part , and twirls in such a way as to drag the cell through the water. It is connected at an inward pocket called the pool.In sperm cells its help in movement.What is purpose of flagella in eukaryotic cell?Flagella in eukaryotes are used not only for Locomotion, but also for helping in phagocytosis and eukaryotic reproduction.
Thus, this is how Euglena and sperm cells use flagella.
To learn more about flagella click here:
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Mutations help in evolution because:
*
Enzyme and substrate concentration
4.
*RECALL: What is a substrate?
Explanation:
base on which an organism lives the soil is the substrate of most seed plants. .A substance acted upon (as by an enzyme)
Which word does not directly tie to the spindle apparatus?
1.nuclei
2.centromere
3.aster fibers
4.chromatid
Please Helppppppp!!!!! Squirrels exhibit altruistic behavior. This occurs when one member of the species squeals to alert the other members of the population of a predator entering the arwa. The squealing member of the population is more likely to be noticed and killed by the predator. Infer how this behavior likely evolved as an adaptation.
A) Populations that exhibit altruism in its members likely allowed more members of the group to survive and reproduce.
B) Only the youngest or weakest members of the population exhibit altruism in squirrels.
C) Only the male member of the population exhibit altruism in squirrels.
D) Squirrels who exhibit altruism are able to scare the predators away
Answer:
A. Populations that exhibit altruism in its members likely allowed more members of the group to survive and reproduce.
What is the answer to this?
Answer:
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An infection with a tropical parasite may block a lymphatic vessel. ?
Answer:
Blood would not flow to the left arm and brain
Explanation:
This is because the left subclavian trunk or artery supply blood to the left arm and brain. It is located in the thoracic and a blockage of it will cause blood not to flow to the arm and brain and this can cause blood buildup in the arteries, resulting in chest pain, heart diseases and so on.
Daryl learns that millions of years ago, Earth's climate went through a
rapid change and experienced an ice age. This rapid climate change put a
lot of stress on the plant life of Earth. How would plant life most likely
react to this stress? *
Plants that adapted to the cooler conditions would survive and rapidly evolve into a
new species.
O All plant life would become extinct, and the new plants would evolve very slowly.
The plants would gradually change over time and produce new species.
All plants would evolve into new species and survive the climate change.
Answer:
Plants that adapted to the cooler conditions would survive and rapidly evolve into a new species.
Explanation:
The plants will react by evolving through natural selection.
The plant species that do not have the genes to adapt to the rapid change in climate would become extinct while those with adaptive genes will survive, reproduce, and contribute rapidly to the development of future generations.
In other words, natural selection selects for individuals with adaptive genes and ensures that such individuals reproduce more and give rise to future generations with the adaptive gene while individuals that are poorly adapted to the change in climate gradually fade off the population.
Hence, the plants that adapted to the cooler conditions would survive and rapidly evolve into new species.
Select the correct answer.
Which of the following characterizes DNA?
A.
Noncoding sequences that get deleted in the course of evolution
B.
Coding sequences that regulate gene expression
C.
Noncoding sequences that are expressed in different cell types
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What structure must develop before a frog cab live on land?
Answer:
legs and loss of tail
Explanation:
What leads to competition in an ecosystem ?
Answer:
preguntale a jesus el lo sabe todo
Explanation:
porq siue
Which statement DOES NOT describe a possible function of chromosomes?
How to calculate net force
Answer:
Consider all forces acting in the body. Resolved them in x-y-z axes. On every axis, take one direction to be positive and subtract the force of opposite direction from that force.
Explanation:
A worm is shown in the picture. What kind of worm is it? a planarian a leech a fluke a tapeworm
Answer:
Planarian
Explanation:
The design of the planarian is gentle, flat, and saddle, and it can be jewish, grey, blue, grey, or white. Two alleviation eyespot pigmented zones light intensity, are located on the flippant, triangle curvy head.
Answer:
A(planarian)
Explanation:
I did the test on edg 2021
short note on occurrence of water in different source and state
Answer:
Water circulates in nature through a continuous and permanent process called the hydrological cycle or the water cycle. In this process the physical and biological elements of nature intervene, atmosphere, rain, water from lakes, rivers and seas, soil and vegetation. Water is in several states: solid state, which is ice. Liquid state, includes groundwater, which is found in the deep layers of the soil, and surface water, which includes innumerable rivers, and a gaseous state, which is found in air and clouds.
Explanation:
Water covers 71% of the earth's surface. The water cycle comprises three phases: Evaporation, filling the atmosphere with large amounts of water vapor (gaseous state). Condensation, forming water droplets in the form of a cloud or mist. Precipitation: the water vapor that is the clouds cools and precipitates in the form of rain, hail or snow. When the rain falls, some of the water is retained in the dense foliage and branches of the trees. Another seeps into the ground, forming the layers of underground water and the other part drains superficially forming streams, rivers or increasing their flow. All water, through evaporation, can change back to the gaseous state, restarting the water cycle. On our planet, water is located mainly in the oceans where 96.5% of total water is concentrated, glaciers and polar caps have 1.74%, underground deposits in (aquifers), and continental glaciers represent the 1.72% and the remaining 0.04% is distributed in decreasing order between lakes, soil moisture, atmosphere, reservoirs, rivers and living beings. Water is found in nature in three different forms or states in: solid state, such as ice, hail or snow, liquid state, such as the water we consume and the water of the seas, rivers and lakes and in the gaseous, when it forms clouds or steam that comes out of boiling water.
Part I: Explain Ways to Improve Your Design
Imagine that you have unlimited funding and space to build your home. Describe four ways you can modify your design to improve your home’s impact on carbon dioxide emissions or biodiversity.
There are actually a lot of ways to improve your home’s impact on carbon dioxide emissions or biodiversity and I’d to give this four (4) best ways to reduce ecological footprints. Add Energy-Saving Features – like for instance install any energy-saving into your home (e.g. lamps) or you may you like to choose energy efficient appliance Encourage Energy-Saving Habits – one example is when turning off any appliances, do not just turn off the appliance but instead unplug it because all electronics used up energy even if it is a plug. Save/Conserve Buy carbon offset – these carbon offsets mitigates owner’s greenhouse gas emissions. In these ways, we can help our mother Earth.
Who benefits from globalization easy answers pls
What affects the shape of a molecule?
A) The types of subatomic particles in the molecule
B) The number of subatomic particles in a nucleus
C) The number of electrons in the molecule
D) The composition of atoms in the molecule
Answer: C : The number of electrons in the molecule
Explanation:
it is affected by the arrangement of electrons, but doesn't describe it's arrangement. The shape of a molecule is how the outside atoms are arranged around the central atom. The lone pairs of electrons affect this arrangement, but is not part of it.
Excess fertilizer runoff into the ocean can lead to excess plant growth and algal bloom, and eventually lead to dead zones caused by ______
water.
Answer:
Hypoxic= answer
Explanation:
Edge 3/2021
Describe the types of fission.
Answer:
Binary fission, Nuclear fission, and Multiple fission
Explanation:
Nuclear fission is when a neutron collides with a radioactive atom and breaks it in half, resulting in energy and radiation. BInary fission and Multiple fission has to do with biology.
escribe en cual de los organos anteriores tienen lugar estos procesos . se filtran las sustancias de desechos que ha recogido la sangre
Answer:
Riñones.
Explanation:
Los riñones son dos órganos ubicados en la cavidad abdominal detrás del peritoneo, a la izquierda y derecha de la columna. Los riñones tienen la función de mantener constante la composición de la sangre, eliminando así las sustancias no deseadas disueltas, como los productos de desecho del metabolismo y los venenos y medicamentos absorbidos a través de los alimentos. El riñón también mantiene el equilibrio ácido del cuerpo a largo plazo, mediante el transporte de carbonato de hidrógeno e iones de hidrógeno. El producto que producen los riñones, una solución de sustancias que el cuerpo ya no puede usar, se llama orina.
While exploring a snag, a biologist discovers a single cell organism. Which statement BEST indicates the first thing the scientist should do to identify and classify the organism into the proper domain?
Answer:
Determine if the organism has membrane-bound organelles.
Explanation:
Other answer choices that are shown are wrong because they dont show the beginning of an organism or it's domain. As you can determine that by searching for membrane-bound organelles, while wondering is it a eukaryote or prokaryote.
which organ of our body works the most?
Answer:
heart and brain of our body work most
Earthworms improve the texture and composition of the soil, aerating compacted earth, adding nitrogen to the soil, and helping form small clusters
of soil, called (blank)
which their slime helps hold together.
Answer: i think its soil structures
Explanation:
Worms dig hols and hold the soil togetyer with slime and make pockets for air and water. Im not 100% sure but i think it is.
Answer:
soil structure
Explanation:
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Describe the founder effect.
Answer: founder effect is the reduction in genetic variation that results when a small subset of a large population is used to establish a new colony. The new population may be very different from the original population, both in terms of its genotypes and phenotypes.
Explanation: