Answer:
Mutation is a source of genetic variation
Answer:
Mutations
Explanation:
Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms. Finally, genetic variation can be a result of sexual reproduction, which leads to the creation of new combinations of genes.
Which statement is not a part of the cell theory
Answer:
cells part such as chloroplasts are self-replicating.
Answer:
the answer is C hope this helps :) Please brainliest
Explanation:
After nitrogen becomes part of the lithosphere, the next change the nitrogen will under go is it will be
A used as a nutrient by plants
B fix by bacteria in the soil
C absorbed into the atmosphere by lightning
After nitrogen becomes part of the lithosphere, the next change the nitrogen will under go is it will be:-
A. used as a nutrient by plants
B. fix by bacteria in the soil
C. absorbed into the atmosphere by lightning
Answer:-B. fix by bacteria in the soil
Explanation:-These bacteria are known as nitrogen-fixing bacteria. These nitrogen-fixing bacteria convert nitrogen in the soil to ammonia. Ammonia can be taken up by plants.what three things are produced during the light reaction
The fish shown here is normally found in a pond but is being studied in an aquarium. The amount of water and salt intake and excretion is measured as the fish maintains homeostasis. What scientific
question is most likely being asked based on the information in the model?
Based on the information in the question, we can infer that the question being asked is most likely "What mechanisms do fish use to maintain homeostasis in salt-water environments?".
What is homeostasis?Homeostasis is a series of regulatory processes by which an organism maintains core values (or range of values) necessary for everyday life.How to test the questionThe question is in the form of a hypothesis.This means that the scientist must first propose a possible solution to the question.Then, the scientist will make observations based on this question. In this case, it would seem the scientist has placed the fish into an environment that differs from its natural habitat, in order to observe how the fish maintains homeostasis.
Therefore, we can infer that the most likely question being asked is in regards to the way in which fish maintain homeostasis.
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Answer:
Im not sure but from the answer is D)
Explanation:
Since the experient is about salt, a water that is hypertonic, thus A and C are out and the question states that they are testing it on a pond, meaning it is in fresh water. Thus B are out and there is only D in this question
Which energy technology is more sustainable long term?
Answer:
Wind power
Harnessing power from the wind is one of the cleanest and most sustainable ways to generate electricity as it produces no toxic pollution or global warming emissions. Wind is also abundant, inexhaustible, and affordable, which makes it a viable and large-scale alternative to fossil fuels.
Explanation:
I hope it's help :)
Answer:
Wind power
Explanation:
getting power from the wind is one of the cleanest and most sustainable ways to generate electricity.
PLEASE HELP WILL GIVE BRAINLIST!
this year there were 32 ants born in an ant hive. Due to the new pesticide that was used in the area, 32 died. With an overall population of 1000 ants in the hive, what is the change in population? Do you have a positive, negative, or zero change in population? How many members are in the new population?
Answer should contain the following information: work for calculating the change in population positive, negative, or zero change in population. Work for calculating the new population.
Answer:
0 change in population. I think.
Explanation:
first we are adding 32 ants to the total because 32 ants were born so 1000+32 = 1032.
Next we are subtracting 32 ants from the new total because a pesticinde was used in the area. So 1032 - 32 is 1000. 1000 was the original total so there was not a decrease in popualtion or an increase.
the protein that carries oxygen in our blood is known as
Iron is a component of hemoglobin, which enables it to absorb oxygen from the air we breathe and transport it throughout the body.
What is Hemoglobin?The iron-containing oxygen-transporting metalloprotein known as hemoglobin, often known by the abbreviations Hb or Hgb, is found in the red blood cells of almost all vertebrates as well as some invertebrate organs. The oxygen from the respiratory organs is transported to the rest of the body by hemoglobin in the blood.
The normal ranges for haemoglobin are different for males and females, and they also vary depending on the ethnicity of the population. Additionally, age is a factor, particularly for women.
When you have anemia, your body doesn't produce enough healthy red blood cells to supply your tissues with enough oxygen. Anemia, commonly known as low hemoglobin, can make you feel exhausted and frail.
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what were the conditions during the 1600s and 1700s?
Answer:
Crop failure and disease was a constant threat to life. Wheat bread was the favorite staple, but most peasants lived on Rye and Barley in the form of bread and beer. These grains were cheaper and higher yield, though less tasty.
why are there earthquakes
Answer:
Earthquakes are usually caused when underground rock suddenly breaks and there is rapid motion along a fault. This sudden release of energy causes the seismic waves that make the ground shake. The earthquake starts at the focus, with slip continuing along the fault. The earthquake is over when the fault stops moving.
Carry learning!
Stay safe!
Study hard!
100 points, help yo boi out in Science, Giving brainy to best answer!!!!
Question 1 :
In one to two sentences, explain why low-pressure systems are associated with bad weather?
Question 2:
In 1–2 sentences, explain what biome comprises most of Antarctica and why the continent is described as being part of this biome.
Answer:
question 1
Low-pressure areas are places where the atmosphere is relatively thin. Winds blow inward toward these areas. This causes air to rise, producing clouds and condensation. Low-pressure areas tend to be well-organized storms
question 2
Scientists that work in Antarctica mostly refer to the majority of the continent as being cold desert or polar desert. The difference between cold and polar desert is very technical, mainly dealing with mineral salt chemistry.
Explanation:
hope this helps!
Which substance acts as a buffer in natural water?
O A. A pH indicator
O B. Distilled water
O c. Decaying plant matter
O D. Sulfuric acid
Answer:
i think Decaying plant matter is answer
animals of the same general body types have the same anatomy true or false
Animals of the same general body types having the same anatomy is True.
Anatomy is the study of the body parts, structures and functions of
organisms.
In situations where animals have the same general body type , then it means
they also have the same anatomy. A good example is mammals which have
the same structure of body parts and the same anatomy.
Organisms with different body structures however have an entirely different
anatomy which is why True is the most appropriate choice.
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in an El nino event, surface temperatures of the pacific oceans are above average for at least a year. what effect, if any, would warmer temperatures have on the growth of a kelp forest ecosystem on the california coast?
El Niño is a phenomenon that impedes warm water to move westward and upwellings events. The kelp forest ecosystem is negatively affected by the rise in water temperature, lack of nutrients, and consequent effects.
-------------------------------
kelp forestThe kelp forest is a large population of brown algae that live in marine cool and relatively shallow waters rich in nutrients.
The population density is so high that they are considered to be marine forests, accomplishing many ecosystemic services, such as
absorbing CO₂, releasing a significant amount of O₂, protecting the coasts from waves erosion, and decreasing acidification.They are shelter and source of food for many different species, becoming one of the most diverse and productive habitats.
El Niño Event
The El Nino Southern Oscillation -ENSO- phenomenon occurs due to a complex system of climatic oscillations between the ocean and the atmosphere.
This phenomenon causes significant perturbations in the usual pluvial regimens in the tropics. It provokes
• dry seasons in areas where it usually rains
• rainy seasons in desertic regions.
ENSO phenomenon is dominant in the global climate system.
Under El Niño conditions
A tropical and weak stream in the Pacific acquires strength while the opposite streams debilitate. This change impedes warm water go westward, remaining on America's west coasts. Upwelling does not occur on the America's coasts. In some regions, temperatures rise, and unusual precipitations occur in desertic or dry areas -Atacama desert-. Other affected areas are Eastsouth Asia, Australia, and New Zealand, where there are fewer precipitations and cooler temperatures. Rainfall drops below the average, affecting crops and livestock. Effect of warmer temperatures on the kelp forest
The kelp forest is very sensitive to temperature changes. As a fact, the forest distribution depends on temperature as a limiting factor.
El Niño event has a damaging influence on these forests, not only because they reduce the availability of nutrients but also because they produce a significant change in water temperature.
Ocean warming negatively impacts algae reproduction, growth, and survivorship.
Algae are damaged by the temperature rise to the point of being eliminated.
Associated species composing the marine ecosystem are affected too since they have no refuge, food and live in environments with a higher concentration of CO₂, lower O₂, and more acidification.
---------------------------------
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how long does it take for a cockatiel egg to hatch
Answer:
18-23 days
Explanation:
18-23 days
18-23 days
18-23 days
18-23 days
18-23 days
18-23 days
Answer :
Incubation is 18 days from the time cockatiels sit in earnest, therefore, count a few extra days if sitting is delayed. Allow the female to abandon the eggs of her own accord rather than removing them even if incubation time is over, because your cockatiel will only lay additional eggs if she reacts to their absence.
Explanation:
hope this helped... have a good day!
How has vehicle fuel consumption in comparison to miles traveled changed since 1960? What is the likely cause for this change?
Answer:
After World War II, economic growth, population growth, rapid suburbanization, and the closing of some public transit systems led to more reliance on personal vehicles for transportation. The number of cars and trucks in the United States increased dramatically, as did the number of highways. One result of the rapid increase of motor vehicles was air pollution, especially in cities, that had serious impacts on public health and the environment.
Plants can synthesize energy rich in sugar molecules using photosynthesis and later break it down into energy for performing life processes using cellular respiration. These two processes require direct interaction between what organelles?
Which of the following cognitive skills have not been displayed by animals? A. Using tools B. Forming concepts C. Transmitting culture D. Using syntax.
A cognitive skill which have not been displayed by animals is: D. Using syntax.
A cognitive skill is also referred to as cognitive ability and it can be defined as a brain-based skill that is required by a living organism for the manipulation of information, acquisition of knowledge, reasoning and performance of various tasks from the simplest to the most complex.
Some examples of the cognitive skills that have been displayed by animals include the following:
The use of tools.The transmission of culture.The formation of concepts.However, animals do not speak words or have a spoken language and as such they do not have the cognitive skill to use syntax.
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Answer:
It’s D
Explanation:
On edge 2022
Which statement best describes the use of a catalyst in a fuel cell? It reduces waste. It lowers energy requirements. It reduces toxic exhaust. It increases reaction rates.
The statement that best describes the use of a catalyst in a fuel cell is : ( D ) It increases reaction rate
A catalyst in a fuel cell speeds up/facilitates the rate of reaction of oxygen and hydrogen especially at the oxygen electrode of the fuel cell.
Generally catalyst is any substance that increases the rate of a chemical reaction without been used up in the process, while lowering the activation energy required to kickoff the reaction.
Hence we can conclude that the statement that best describes the use of a catalyst is that it increases the reaction rate
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Answer:
The answer is D
Explanation:
EDGE2022
I need a paragraph explaining what dna and rna is
plssshelp fast
Answer:
DNA is the 33 chromosomes. RNA is the protein that exists in viruses... that's All what I know.
Answer:
don't cheat
Explanation:
do it yourself
the lysosomal enzymes show optimal activity in ------------ph.
the lysosomal enzymes show optimal activity in White blood cells
What are some characteristics of scientific thinking?
Answer:
Open-mindedness. Capable of accepting new and different ideas.
Skepticism. Having an attitude of doubt.
Honesty. Scientists report results truthfully.
curiosity. leads to new scientific knowledge.
creativity. involves coming up with new sources and ways to solve problems or produce things.
Which stage is labeled E in the diagram?
Answer:
can you show the diagram?
An organism that inherits two alleles of the same type is known as:
_ _ _ _ _ _ _ _ _ _ _
Hope this helps :)
MULTIPLE CHOICE QUESTION
Which statement best describes the
location of Australia?:
Southern & Western Hemispheres
Northern & Western Hemispheres
Southern & Eastern Hemispheres
Northern & Eastern Hemisphere. (Please I only have two minutes to answer)?
Answer:
south eastern hemisphere
Explanation:
it's found on easternmost and southernmost side of asia although it's called oceania it's generally south east
Eukaryotes are __________________ and include __________________________.
Answer: Eukaryotes are the cells of animals, plants, and fungi and include membrane-bound organelles such as a nucleus and mitochondria.
Explanation: Hoped this helped! :D
What is a population?
a. a group of organisms that occupy the same general area at different times
b. a group of individuals of a single species that occupy the same general area at the same time
c. the growth rate of individuals of a single species that occupy the same general area at the same time
d. the growth rate of individuals of a single species that occupy the same general area at different times
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Functional groups
Answer: I don't have a definitive answer for this question but I do have a helpful explanation.
Explanation: Try to find out what each letter means and organize the elements by how they connect to each other. If you don't know you can research to find a diagram that can help show you how to connect these functional elements. You could try searching how do you find the elements of HOH in a diagram.
what is mauna loa volcano intensity?
Answer:
And over time, volcanoes made from low lava viscosity are wide and have a shallow slope; these are known as shield volcanoes. Classic examples of shield volcanoes are Mauna Kea and Mauna Loa in Hawaii, as well as Olympus Mons on Mars. When lava has a high viscosity, it's very thick and doesn't flow very well at all.
9,600 cubic miles
Mauna Loa is the largest volcano on Earth with an estimated volume of 9,600 cubic miles (40,000 cubic kilometers). It makes half of the area of the Island of Hawaii. Mauna Loa began to form nearly a million years ago. There is a caldera, Mokuaweoweo, at the summit and rift zones extend to the northeast and southwest.
Explanation:
What protein facilitates transmission of nerve signals between neurons?
a. neurotransmitters
b. interneurons
c. axons
d. myelin
Shown below are 4 stages (A,B,C,D) (not in sequence) of a certain kind of cell division.
The diagram below shows a cell undergoing mitosis (cell division). The correct order of the stages is B, C, D and A.
Mitosis is a type of cell division in which a parental cell divides to produce two genetically identical daughter cells.
In this case, an animal cell is undergone mitosis because the cell exhibits centrioles (only found in animal cells) and lacks cell walls (only present in plant cells).
The stages of mitosis include prophase, prometaphase, metaphase, anaphase, and telophase.
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