Answer:
1) Alfred Wegener, in the first three decades of this century, and DuToit in the 1920s and 1930s gathered evidence that the continents had moved. They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.
Explanation:
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Describe an example of a plant responding to environmental stimuli
Answer:
Plants also detect and respond to the daily cycle of light and darkness. For example, some plants open their leaves during the day to collect sunlight and then close their leaves at night to prevent water loss. Environmental stimuli that indicate changing seasons trigger other responses.
Explanation:
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Can you help me with both questions
Answer:
b and c
Explanation:
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Define el consepto de fraccion
Answer:
The concept of fraction
Explanation:
What is the concept of fraction tho? Fractions are numbers that represent a part of the whole. When an object or a group of objects is divided into equal parts, then each individual part is a fraction. ... It is divided into a numerator and denominator where the denominator represents the total number of equal parts into which the whole is divided.
A fraction represents the number of parts that we take from a unit that is divided into equal parts. It is represented by two numbers separated by a fraction line.
A mutation that involves one or just a few nucleotides is known as what? A. point B. minor C. chromosomal
That would be a point mutation
Answer:
Point
Explanation:
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Answer:
2)D
3)B
4)C
5)A
6)A
7)D
8) I'm not sure
The creation of genetically identical offspring by a single parent, without the participation of sperm and egg, is called The creation of genetically identical offspring by a single parent, without the participation of sperm and egg, is called spontaneous generation. asexual reproduction. regeneration. sexual reproduction.
Answer:
Asexual reproduction.
Explanation:
The generation of genetically identical offspring from a single parent, without the fusion of sperm and egg, is called asexual reproduction. Asexual reproduction occurs when there is only one parent from which organism is produced. Budding, binary fission and fragmentation are the different types of asexual reproduction that involves only one parent and no fusion of sperm and egg cells.
When modeling fisheries: (You may choose one or more answers)
A. Fixed quota models result in multiple maximum sustainable yield population levels
B. Fixed effort models result in an inability to harvest at maximum sustainable yield
C. Fixed quota models are risky because slight miscalculations can result in fish population extinction
D .Fixed effort harvesting reduces the risk of population extinction
Answer:
Option A, Fixed quota models are risky because slight miscalculations can result in fish population extinction
Explanation:
Some of the major drawbacks of modelling fishing are as follows –
a) The fixed quota model is very risky as a miniscule change in attributes can result into extinction of fish.
b) On the other hand fixed effort harvesting can decrease the risk of fish population extinction
Hence, option A is correct
why is the cell cycle often represented as a circle
Explanation:
The cell cycle is a cycle, rather than a linear pathway, because at the end of each go-round, the two daughter cells can start the exact same process over again from the beginning.
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A lack of CO2 in the flask would have caused reduced O2 production. If O2 , ATP, and NADPH are the by-products of the light-dependent phase of photosynthesis, how does a lack of CO2 cause reduced O2 production
Answer:
Carbondioxide is a reactant of photosynthesis.
Explanation:
Carbondioxide is a reactant of the process of photosynthesis and the product of photosynthesis is oxygen, if there is no or less carbondioxide the rate of photosynthesis decreases which leads to the lower production of oxygen. The rate of photosynthesis affected by the reactants available to it. If Carbondioxide is available in large amount more photosynthesis occurs that leads to more production of glucose as well as oxygen. So we can conclude that lack of Carbondioxide results in lower production of oxygen in the process of photosynthesis.
How many and what type of people are likely to have the disorder?
Answer:
PTSD is a condition of the mind and brain that are in shock. What causes it will not matter in the end only understanding exactly in what manner are you in disorder and it’s important to realize it is you not your mine and not your brain as all is one sole integrated being. Your mind and your brain are you and there is no you with them as well.
The problem is that there are different kinds of PTSD, that’s one of the reasons people find it so hard to solve. What can work for one individual will not work for another as each case can be unique although they may all have something in common, in all cases the mind and the brain are being affected.
All psychological and emotional characteristics of human beings are associated with our mind and our brain. I am using words to simply convey an understanding so I say the mine and the brain but I am simply referring to people, human beings.
What’s the answer hurry it’s a test ?
Answer:
A: maintains genetic continuity from one generation to the next
Explanation:
I think A is correct because it mains genetic continuity from one generation of cells to the next. So all you cells in skin that are dead are replaced by the exact replica of next skin cells that arose from mitosis.
Gametes undergo meiosis and not mitosis.
An enhancer consists of a group of control elements controlling the same gene.
True
False
Answer:
True
Explanation:
Describe the path a fatty acid molecule (from being on a piece of buttered toast) can end up being in a plaque on a coronary artery. Explain what possible structures it could have passed through in the body and what possible organs may have had a role in its journey.
PLEASE HELP
Answer:
A juggly fat chunges that can't move without stepping on his own toes. He is fat and needs more before he falls on his stomach and farts in a random person face and falls down the drain
Explanation:
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You are touring several ecosystems, including an icy coastline in the Arctic, and a dry desert in the southwest United States. Do you predict that you will observe equal numbers of ectotherms and endotherms in all ecosystems? Explain your prediction.
Answer:
No.
Explanation:
No, we observe different number of ectotherms and endotherms in Arctic, and a dry desert ecosystems because there is difference in the temperature of both the environment. Due to difference in temperature of the external environment, the number of ectotherms and endotherms are present in that ecosystem. More number of ectoderms are present in the desert ecosystem where the ectoderms survive better than endotherms so we can say that number or population is different.
An ecological footprint A) is a means of determining increases in populations that lived in the past. B) is a means of understanding resource availability and usage. C) measures dispersion and adaptability. D) will estimate population movements.
Answer: An ecological footprint is a means of understanding resource availability and usage. The correct option is B.
Explanation:
The ecological footprint is a method which is used to measure the rate as which humans use natural resources in their environment and generate waste from them compared with how fast nature can absorb these wastes and generate the used resources again. The productive areas which are measured through this means are:
--> cropland,
--> grazing land,
--> fishing grounds,
--> built-up land,
--> forest area, and carbon demand on land.
The importance of ecological footprint to the environment should no the over emphasizes. When properly observed, different environmental pollution would be dealt with. Generally, there would be:
--> decreased desertification,
--> decreased global warming
--> availability of fresh unpolluted air and
--> decreased carbon emissions.
Which of the following is true of Meiosis?
A. Meiosis does not require interphase to occur.
B. Meiosis requires DNA to copy itself twice
C. Meiosis produces haploid cells
D. Meiosis contains only one cell cell division
E. Meiosis occurs in all cells
Answer:
my true answer require is B
Describe the technology that enabled filmmakers to capture detailed footage of honey bees in flight.
Answer:
A feathered penis destined to die In a single flight, the queen can mate with up to 20 drones and store material would describe how Imhoff and his team succeeded to film bees for 36 stunning seconds of increased macro video... Information about cookies.
Explanation:
Which of the following is released during cellular respiration?
A. Carbon dioxide
B. Glucose
C. Mitochondria
D. Oxygen
Answer:
A.) Carbon Dioxide
Explanation:
The main purpose of cellular respiration is to produce ATP. However, one of the byproducts is carbon dioxide. We use the process of cellular respiration when we take in oxygen (so oxygen isn't the answer) and breathe out CO2. Cellular respiration takes place in the mitochondria, but that's not what's released.
Hope this helps!
Answer:
Carbon Dioxide
Explanation:
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The shift in the stream was caused by movement at a __ boundary
A. converging
B. diverging
C. transform
Biodiversity decreases the stability of an ecosystem and decreases the
health of the biosphere
true
or
False
Answer: false
because Biodiversity is the biological variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Which of the following statements is true about nitrogen fixation?
a. It is done only by plants.
b. It is done mostly by bacteria.
c. It is how animals make proteins.
d. It is a form of decomposition.
Explanation:
option B is the correct one as it is done by nitrogen fixing bacteria.
It is absorbed by bacteria from the atmosphere as a gas and released to the soil, mostly as ammonia. Thus, option B is correct.
What is role of bacteria in nitrogen fixation?The purpose of nitrogen-fixing bacteria is to provide plants with a crucial nutrient that they are unable to receive naturally from the air. Microorganisms that fix nitrogen can obtain assimilate N for plants in a way that crops cannot.
More than 90% of all nitrogen is fixed by nitrogen-fixing bacteria, which makes them crucial players in the nitrogen cycle.
The majority of nitrogen fixation is done spontaneously by bacteria in the soil. In the soil, nitrogen is fixed and changed in form.
Some bacteria form symbiotic relationships with plant roots that are advantageous to both the plant and the bacteria.
Therefore, It is done mostly by bacteria.
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cell like this has just left the lungs. What colour will it be?
Answer:
Within your blood, red blood cells have a specialized task. ... Your blood then transports carbon dioxide back to the lungs where you can ... They extend like tree branches into the lung.
Explanation:
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The upper chambers of the heart are the
A) ventricles
B) atria
C) myocardia
D) coronary artery
Answer:
atria
Solution
the atria i believe is the upper chambers of the heart..
What is the underground portion of the mushroom called?
mycellium
hyphae
stalk
spores
Answer:
mycellium
Explanation:
Select all that apply.
Which statements about Archaea are true?
Archaea are able to live in high concentrations of salt water.
n Archaea are commonly found in your body, your food, and your home.
If you get food poisoning, you can most likely blame Archaea.
Archaea can be found at the bottom of the sea.
How can extinctions and expansions occur in the same habitat? Explain your answer.
When a habitat is destroyed, the carrying capacity for indigenous plants, animals, and other organisms is reduced so that populations decline, sometimes up to the level of extinction. Habitat loss is perhaps the greatest threat to organisms and biodiversity.Extinction happens when environmental factors or evolutionary problems cause a species to die out. The disappearance of species from Earth is ongoing, and rates have varied over time.
Extinctions are associated with biodiversity changes, thereby affecting species expansion.
What is extinction?Extinction refers to the disappearance of a given taxonomic group (e.g. species-level extinction).
This process of disappearance (extinction) modifies the trophic relationships in the ecosystem.The modification may lead to the expansion of a given species (e.g., prey in the case of predator extinction).In conclusion, extinctions are associated with biodiversity changes, thereby affecting species expansion.
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Which of the following is not a strategy for reducing health risks from chemicals?
a.
eliminate the use of leaded gasoline
b.
reduce the sulfur content of fuel
c.
increase production of industrial chemicals
d.
limit worker exposure to chemicals
Answer:
c
Explanation:
If you wanted to reduce health risks, why make more?
Answer:
c
Explanation:
bc I said so
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The models below represent nuclear reactions. The atoms on the left of the equal sign are present before the reaction, and the atoms on the right of the equal sign are produced after the reaction. Model 1: Atom 1 + Atom 2 = Atom 3 + energy Model 2: Atom 4 = Atom 5 + Atom 6 + energy Which of these statements is most likely correct about the two models? Both models show reactions which produce energy in the sun. Both models show reactions which use up energy in the sun. Model 1 shows reactions in the nuclear power plants and Model 2 shows reactions in the sun. Model 1 shows reactions in the sun and Model 2 shows reactions in a nuclear power plant.
Answer:There are two kind of nuclear ractions: fusion and fission reactions.
Both release a huge amount of energy in different ways.
Fusion reactions are nuclear reations in which two smaller (lighter) atoms combine into a larger (heavier) atom, with the respective release of energy.
That is what model 1 shows:
Model 1: Atom 1 + Atom 2 = Atom 3 + energy
That is the process that happens and is responsible for the huge amount of heat produced in and released by the Sun.
In the Sun two atoms of hydrogen fuse into a larger atom of helium.
That is represented by the nuclear reaction:
Explanation:
What does DNA have to do with variation of a species?
Answer:
dna affects the physical appearence and also how our body works. changes in our dna can cause one to look different and have different functions from what a normal organism of that species has. as that organism with a mutation reproduces, its offspring will end up having similar features causing a variation in the species
Explanation: