Answer:
genetics and hereditary inheritance
Help meeeee plssssss
What is the amount of heat energy needed to raise the temperature of
200 g of water from 10°C to 40°C? (water = 4.18 J/g°C)
Answer:
25116 J
Explanation:
Q = m × c × ΔT
c = 4.186 J/g°C
M=200 g
So,
Q = 200 × 4.186 × (40-10)
=200 × 4.186 × 30
=25116 J
You’ve found some fossil bones while digging in your backyard. could they be dinosaur bones? using carbon dating, you determine that 3% of the original radioactive carbon-14 is still radioactive. (the rest has decayed into nitrogen-14.) how many half-life cycles has it gone through? approximately half-life cycles.
Since 3% of the original radioactive carbon-14 is still radioactive, the carbon-14 radioisotope has undergone five half-lives.
What is Half-Life?Half-life of a substance is the time it takes for half the original amount of the substance to decay.
Radioactive elements decay spontaneously according to their half-lives.
Since 3% of the original radioactive carbon-14 is still radioactive, the number of half-lives undergone is determined as follows:
After one Half-Life, 50% remains
After two half-lives, 25% remains
After three half-lives, 12.5% remains
After four half-lives, 6. 25% remains
After five half-lives, 3.125 % remains.
Therefore, the carbon-14 radioisotope has undergone five half-lives.
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Answer: 5 Half Life Cycles
Explanation: edg 2023
Which statement correctly describes the pH of water?
A. The pH of water increases as its temperature increases.
B.The pH of water is neutral.
C.Water contains more hydrogen ions, giving it a higher pH.
D.water is neutral and has a pH of 0.
What is the function of the acetone used in paper chromatography to separate photosynthetic pigments
Answer:
It dissolves pigments, allowing them to travel up the paper strip.
what materials are organisms made of?
Explanation:
Living organisms are made of a mixture of carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorous. ....
could anyone please make me a educational comic about the carbon cycle?
you can do phosphorus or nitrogen too, just choose one of the three
please and thank you!!
This is how a SIM medium looks after 24 hours and the addition of indole reagent. Is the unknown bacterium positive or negative for H2S production, indole production, and motility
In the test tube pink colour shows that it is indole positive and H2S positive bacteria and it is non motile.
What is the indole positive?Within seconds of introducing the reagent, a pink color appears in the reagent layer on top of the agar deep, indicating a positive indole test. The reagent layer will stay yellow or slightly hazy if the culture is indole negative.
When an organism converts sulfur to hydrogen sulfide, the hydrogen sulfide reacts with iron to generate ferric sulfide, a black precipitate. The presence of blackening in the medium suggests a reduction in sulfur, which is a +ve sign.
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Which of the following is true of the first trophic level of all ecosystems?
how does one type of rock is transformed to another type of rock?
Answer:
This can happen through the rock cycle. But there are 3 processes which are crystalization, erosion and sedimentation, and metamorphism.
Explanation:
There are several types of rocks, but only one large furnace in which parts of a single large rock are cooked and changed into the various types of rocks. Our planet is a massive rock and a massive furnace. All rocks are divided into three categories, or classes. They're classified as sedimentary, metamorphic, or igneous, with variances in how they're generated.
I'll show you a schematic of the Rock Cycle instead of a detailed answer. It shows how one type of rock may be converted (metamorphic) into another under certain conditions. Just bear in mind that some types of rocks, such as sedimentary rocks, may form in a matter of hours, while others, such as metamorphic rocks, take millions of years to create.
A population of pigs lives on an island together with burrowing termites. Pigs that have the longest snouts tend to survive more frequently than those with shorter snouts. Over time, most of the pig population is made up of individuals that have very long snouts. This is an example of which type of selection?
Answer:
heredity?????
Explanation:
Cytokinesis is when the cell
separates into two identical
daughter cells. Cytokinesis is
which phase of cell division?
Answer:
D.) Last
Explanation:
If cytokinesis is when the cell separates into two identical daughter cells, this means that DNA replication and mitosis must have already occurred. The duplication of the parent cell's DNA and organelles is what makes the daughter cells identical. These processes must occur before the cell literally divides.
3. Describe how nutrient cycles can interact in the cycling of matter:
Nutrients and matter in a biogeochemical cycle move through various spheres including the atmosphere, biosphere, hydrosphere and lithosphere.
What is nutrient cycles?Nutrients move through the ecosystem in the nutrient cycle or biogeochemical cycles. This cycle is a pathway by which a chemical element moves or recycles through the biotic and abiotic factors of an ecosystem.
It is inclusive of the biotic factors, or living organisms such as plants animals, and others, as well as abiotic or nonliving such as air, soil, and water.
it moves through abiotic and biotic elements such as water moves through water body to the atmosphere by evaporation and moves back to earth and hydrosphere by rain and also used by living organisms.
Thus, Nutrients and matter in a biogeochemical cycle move through various spheres including the atmosphere, biosphere, hydrosphere and lithosphere.
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What is resource partitioning?
A. dividing up resources among organisms in an
ecosystem
B. pushing a species out of an ecosystem due to a
lack of resources
C. competing with another species until they
become extinct
D. moving of organisms to find new food
resources
Answer:
A. dividing up resources among organisms in an ecosystem.
explain how root hairs help plants to absorb a lot of water in a short time
explain human digestive system
Answer:
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion.
Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
HELP ASP
Looking at the picture, describe the biotic and abiotic factors you see.
Answer:
abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organismsBiotic and abiotic factors are what make up ecosystems. Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere. The way these components interact is critical in an ecosystem
0)“If Jupiter was not there, there could be more terrestrial planets”. Explain how
what would happen if there was no Jupiter?
There would be minor changes in the planets' orbits about the Sun, but very little else. However, Jupiter does a great job of shepherding and absorbing small objects in the Solar System. With Jupiter gone, the main effect on Earth would be an increase in the rate of impacts from asteroids and other space flotsam.
How do you think our bodies process food?
Define the term resolving power
How are Glucose, Proteins, and Fats used to make new molecules? And what types of molecules are made?
Answer:
Sometimes known as glycans, there are three common and principal types of polysaccharide, cellulose, starch and glycogen, all made by joining together molecules of glucose in different ways. It has been estimated that 50% of the world's organic carbon is found in one molecule; cellulose.
Imagine a balloon is made from a membrane that's permeable to water but not sucrose molecules. If the balloon is filled with a pure water and then placed in a beaker of 50% sucrose solution, then the balloon will
The size of the balloon would increase.
me animation on constructing the water cycle. Once you have completed a correct water cycle, include a paragraph of the process, and how certain steps of the process may affect you.
A population of plants growing in a field is examined over a period of years. The plants have either white or yellow flowers.
What best explains the observations?
A. White flowers increase the plant's fitness, so the population is under directional selection.
B.Yellow flowers increase the plant's fitness, so the population is under directional selection.
C.Yellow flowers increase the plant's fitness, so the population is under disruptive selection.
D.White flowers increase the plant's fitness, so the population is under disruptive selection.
Thebest explanation for the observation is that white flowers increase the plant's fitness, so the population is under directional selection.
What is genetic variation?Genetic variation refers to the differences that exists in the genes of organisms of the same species or different species.
The gene for flower color in the plants has two alleles for yellow and white flower color.
Over time, the proportion plants with white-colored flower increased while that of yellow decreased.
Therefore, the best explanation for the observation is that white flowers increase the plant's fitness, so the population is under directional selection.
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Bison grazing on grasses growing in a meadow represent Group of answer choices a consumer eating a producer. two producers exchanging energy. anaerobic metabolism. a predator eating a consumer.
Which of the following does NOT
cause the urban heat island
effect?
A. impervious surfaces
B. air conditioning units
C. fuel combustion
D. lots of vegetation
Answer:
D. Lots of vegetation
Explanation:
Urban heat islands form when cities replace natural land cover with dense concentrations of heat-absorbing pavement, buildings, and other surfaces. This has the impact of raising energy prices (for example, air conditioning), air pollution levels, and heat-related sickness and mortality.
Explanation:
it's d lots of vegetarian
What are the two sub kingdoms of kingdom plantae?
Answer:
The answer is Cryptogams and Phanerogams.
Explanation:
The kingdom Plantae is divided into two subkingdoms: Cryptogamae and PhanerogamaeKingdom plantar is the kingdom of plants
It is divided into two sub kingdoms
Cryptogamae PhanerogamaeCryptogamae are flowerless and seed less where less phanerogamae are not
Which are ethical concerns related to editing the genes of germline cells?
Select all that apply.
The risk of unknown side effects if we allow it.
The cost of human suffering if we don’t allow it.
The effects on future generations if we allow it.
The risk that genes will not end up in future generations if we allow it.
The ethical concerns related to editing the genes of germline cells include the risk of unknown side effects and effects on future generations.
What is gene editing?Gene editing refers to the genetic engineering technologies aimed at modifying the content of genes.
Germinal gene editing assumes the edition of the germinal line and therefore it affects the gene content of future generations.
In conclusion, the ethical concerns related to editing the genes of germline cells include the risk of unknown side effects and effects on future generations.
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Scientists at the university of florida recently said they had grown a plant related to mustard greens in what kind of soil, though the plant was less healthy than local crops?.
The type of soil in which the scientists had grown a plant related to mustard greens is : Moon soil
What is moon soil ?Moon soil is the type of soil which is found in the moon. scientists at the university have discovered that plants can grow in moon soil after they had successfully grown a plant related to mustard greens although with slight differences in quality in moon soil after almost a decade of research been carried.
Hence we can conclude that The type of soil in which the scientists had grown a plant related to mustard greens is Moon soil.
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A bird-watcher sees a small yellow bird in a tree. explain to the bird-watcher how he can use a dichotomous key to identify the bird. assume he does not know anything about dichotomous keys. then, write two steps of a dichotomous key that would be helpful for the bird-watcher.(2 points)
At each step, a dichotomous key divides proof of identity into two mutually preferential options. To use the key, the scientist begins at the top and determines which of the two options applies to their organism. The key directs them to a new question based on their response.
What is dichotomous key?This key aids in the identification of organisms by directing the attention to identify the organisms.
The steps to use a dichotomous key are:
Organize the characteristic of the organism.Divide the specimen.Draw a dichotomous key either text-based or graphical.Check out for the unknown organism.Thus, these are the steps that the bird-watcher can use for identifying the bird.
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