Answer:
A: Discovery of DNA as the genetic material
Explanation:
DNA is the genetic material and stretch of DNA that codes for a specific protein is called as gene. Discovery of DNA as genetic material provided the physical proof of Mendel's factors that were responsible for transmission of genetic traits in his experiment.
Discovery of DNA as genetic material also established that genetic variations among individuals of the species as described by Darwin are due to minor differences in their DNA molecules.
Hence, discovery of DNA as genetic material led to acceptance of both Mendel's law and Darwin's theory.
Which statement is the most reasonable testable prediction for the hypothesis: All birds can fly?
-observe all the birds outside your home for a week to see if they all can fly
-examine the list of all known species of birds and determine if any species cannot fly -Take a random sampling of five birds from around the world to verify that they can all fly
Answer:
"Examine the list of all known species of birds and determine if any species cannot fly" would be the most reasonable answer.
Where is the lower quartile located in this box plot?
A.
14
B.
15.5
C.
16.5
D.
17
E.
20
Answer:
B
Explanation:
The lower quartile will be at the left side so the end of it is 15.5 or B
In this box plot, the lower quartile is located at point 15.5. Thus, the correct option is B.
What is the Lower quartile?A lower quartile may be defined as the value beneath which 25% of the data attributes are located when they are positioned in increasing order.
Looking at the box, under the value 15.5, almost 25% of the data attributes are positioned.
Therefore, the correct option for this question is B.
To learn more about the Lower quartile, refer to the link:
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Directions: Complete a Punnett square for the following genetics problems and provide genotypic and phenotypic ratios of offspring.
In rabbits, short hair (S) is dominant over long hair (s). What genotype and phenotype ratios are expected from a cross between two heterozygous shorthaired rabbits?
In sheep, white wool (W) is dominant over black wool (w). What genotype and phenotype ratios are expected from a cross between a heterozygous sheep with white wool and sheep with black wool?
In some plants, green pod color (G) is dominant to yellow pod color (g). If an individual that was heterozygous for green pods were crossed with one that was homozygous for green pods, identify the genotype and phenotype ratios of the offspring.
In some plants, having brown seeds (B) is dominant to having white seeds (b). What are the genotype and phenotype ratios that would be expected from a cross between an individual that is homozygous for brown seeds and one that has white seeds?
Work sheet below ^^
Thank you!! Will give Brainliest if possible!
Answer:
Sorry I couldn't draw the punnett squares. Also I'm not sure if you need to reduce the ratios or change them into percents but hopefully this helps
1. S s
S SS Ss
s Ss ss
Genotypic ratio- 1 SS: 2 Ss: 1 ss
Phenotypic ratio- 3 short haired: 1 long haired
2. W w
w Ww ww
w Ww ww
Genotypic ratio- 2 Ww: 2 ww
Phenotypic ratio- 2 white wool: 2 black wool
3. G g
G GG Gg
G GG Gg
Genotypic ratio- 2 GG: 2 Gg
Phenotypic ratio- 4 green pods: 0 yellow pods
4. B B
b Bb Bb
b Bb Bb
Genotypic ratio- 4 Bb: 0 bb: 0 BB
Phenotypic ratio- 4 brown seeds: 0 white seeds
Using Punnett squares for various genetic traits in animals and plants, you can predict the genotypic and phenotypic ratios of the offspring. In each case, allele dominance determines the phenotypic outcome.
Explanation:Let's complete the Punnett squares for the given genetic problems to determine the genotypic and phenotypic ratios of the offspring.
1. Short Hair (S) vs Long Hair (s) in Rabbits:
Heterozygous short-haired rabbits have a genotype of Ss. When we cross two Ss rabbits, the Punnett square yields the following genotypes: SS, Ss, Ss and ss. This results in a genotypic ratio of 1 SS : 2 Ss : 1 ss. Because the short hair gene (S) is dominant, the phenotypic ratio will be 3 short-haired to 1 long-haired.
2. White Wool (W) vs Black Wool (w) in Sheep:
When we cross a heterozygous white wool sheep (Ww) with a black wool sheep (ww), the Punnett square yields genotypes: Ww and ww. Therefore, the genotypic ratio is 1 Ww : 1 ww. Since white wool is dominant, the phenotypic ratio is 1 white : 1 black.
3. Green Pod (G) vs Yellow Pod (g) in Plants:
Your cross is between a heterozygous green pod plant (Gg) and a homozygous green pod plant (GG). This yields genotypes: GG and Gg, hence a genotypic ratio of 1 GG : 1 Gg. As green is dominant, all offspring should be green in phenotype.
4. Brown Seeds (B) vs White Seeds (b) in Plants:
The cross is between a homozygous brown seed plant (BB) and a white seed plant (bb), resulting in all offspring being heterozygous (Bb). Therefore, the genotypic ratio is 1 Bb, and as brown is dominant, all offspring will have brown seeds.
Learn more about Genetic Crosses here:https://brainly.com/question/16991762
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Which of these is a characteristic of index fossils?
A/Found in the topmost rock layer.
B/Found in many layers of the same rock.
C/Have already established relative age.
D/Are limited to a particular geographic location. (Hurrrryyyy)
Answer:
c is the right answer
Explanation:
What does this device do
measures a person's blood pressure when the heart contracts and relaxes
hope this helps
The device in the image is called a sphygmomanometer.
What is a sphygmomanometer?A sphygmomanometer is a device that is used to check and measure blood pressure levels.
A scientist named Von Basch created the sphygmomanometer.This instrument consists of a blood pressure meter or a gauge that is used to measure blood pressure.This instrument has to always be started with a conjunction meaning to determine the pressure at which the blood flow starts to at what point the pressure is unimpeded.To learn more about sphygmomanometer, refer to:
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Which statement below is most accurate about the processes of mitosis and meiosis?
Question 6 options:
In mitosis, a cell divides 4 times and in meiosis a cell divides twice.
In mitosis a cell divides once and in meiosis a cell divides twice.
In mitosis a cell does not divide, but in meiosis cells divide.
In mitosis a cell divides but in meiosis cells do not divide.
The second one . In mitiosis a cell divides once and in meiosis a cell divides twice
Answer:THE ANSWER is B :3
Essays need as least 5 or more sentences .
1 imagine you are an assistance for one of the ancient astronomers. You are present when the astronomer makes an important discovery. Write a firsthand account describing the discovery and its impact on science.
2 Scientists are continuously searching the Milky Way Galaxy for other stars that may have planets. What types of stars would most like have a planet or planets suitable for life as we know it? Write a paragraph describing these stars.
2) The stars that will most likely be habitable or suitable for life are stars similar to the sun, a main sequence star like a yellow dwarf. In astronomy and astrobiology, the circumstellar habitable zone (CHZ), or simply the habitable zone, is the range of orbits around a star within which a planetary surface can support liquid water given sufficient atmospheric pressure.
Hope this helps （╹◡╹）
Charles has decided to eat nothing but cereal with milk for a whole day. Based on the above chart, which nutrient will Charles get the most of?
Vitamin A because of the nutrient value per serving is 40% (the highest).
Ice is placed in hot water. What happens to the temperature of the ice and the water?
A.
The ice and the water both get cooler.
B.
The ice gets cooler, and the water gets warmer.
C.
The ice gets warmer, and the water gets cooler.
D.
The ice gets warmer, and the water stays the same.
Answer:
the ice get warmer, the water gets cooler
Explanation:
Answer:
the ice get warmer, the water gets cooler
what is the farthest sun in the galaxy?
Answer:Farthest Known Galaxy in the Universe Discovered. The galaxy MACS0647-JD (inset) appears very young and is only a fraction of the size of our own Milky Way. The galaxy is about 13.3 billion light-years from Earth, the farthest galaxy yet known, and formed 420 million years after the Big Bang.
Explanation:
When reproducing a plant by _____, you can use the stem, root, or leaf.
Answer:
when reproducing a plant by ____, you can use the stem, root, or leaf.
Explanation:
* cutting
I believe you are referring to propagation (also known as cutting). This is where a piece of a plant, like the stem or leaf, is cut from the "mother" plant. Then from the cut plant piece a new plant will grow.
Hope this is what you were looking for, and hope this helped!
PLEASE HELP ME !’
When a solvent equally disperses throughout a solution, what type of transport is this?
A. Facilitated diffusion
B. Active transport
C. Osmosis
D. Diffusion
The correct answer to the question is D. Diffusion, which is the process by which solutes spread from an area of higher concentration to an area of lower concentration until equilibrium is reached, without the need for external energy.
When a solvent equally disperses throughout a solution without the need for external energy and without the help of transport proteins, this process is known as diffusion. Diffusion is the movement of solute molecules from an area of higher concentration to an area of lower concentration until the concentrations are equal on both sides of the membrane. This process does not require energy, making it a form of passive transport. Facilitated diffusion, on the other hand, involves transport proteins but is still considered passive transport as it moves solutes down their concentration gradient. Therefore, the correct answer is D. Diffusion.
How is an increase in carbon in the atmosphere likely to affect coastal areas such as those in North Carolina?
Answer:
The tides will rise
Explanation:
Answer:
It is likely to cause an increase in erosion.
Explanation:
What is a possible explanation for why we have these extra teeth?
Answer:
Explanation:
A long time ago while we were evolving the species before us must have needed more teeth because the first pair of teeth could be destroyed.
Hummingbirds drink nectar from flowers robins eat plant seeds what does this reduce : a. Interspecific competition , be intraspecific competition ,c. cooperation ,d.mutualism
Answer:
Interspecific competition
Explanation:
Hummingbirds and robins are different species, so it is interspecific competition
Answer: a. Interspecific competition
Explanation:
The hummingbird drink the nectar from the flowers and robins eat plant seeds is the example of reduction of interspecific competition. The ecological niche of both of the species is different. An ecological niche can be define as the functional role an organism plays in an ecosystem.
In an interspecific competition, the individuals of distinct species compete for the same resource. This will lead to the extinction of any one of the species or decline in the members of the either of the species.
As the species of hummingbird is dependent upon the nectar and the robins are dependent upon the seeds as food therefore their will not be any interspecific competition among these species.
which sentence describes a possible impact of early hunter – gatherer societies on the environment?
a. cultivating too many plants drained the land of water.
b. introducing non-native species led to the extinction of some plants.
c. overhunting led to the extinction of large herbivores species.
d. reliance on fossil fuels polluted air, water, and land.
Answer:
Hi,
The correct answer is option (C) Overhunting led to the extinction of large herbivores species
Explanation:
Herbivores are those animal species that eat plants only.Hunters and gatherers depended on their hunting skills to obtain meat as a source of protein/food for their families.Most of the animals that were hunted were herbivores.Overhunting reduced the number of these species because the process was not controlled thus there was no time for the animals to increase in numbers in the natural process
Best of Luck!
Answer:
c
Explanation:
Need help with 17. - 21
Answer:
False ,true,true, false ,true,false,
Explanation:
Choose ALL the answers that apply.
Invasive species:
A) Can increase competition
B) Help prevent extinction
C) Reduce disease in a population
D) Are not native to the environment
Answer:
I think that the answers are A and D.
For option A, we can come to the conclusion by thinking about the effects of invasive species. For example, when an invasive species appears in a specific environment and unfortunately feed on the same kind of plant as the native species, it will lead to the fact that they have to compete more in order to survive.
For option B, we can clearly see that it's wrong. From the point above, we can also predict that there is a high chance the invasive species will win the competition, resulting in the decrease population of the native specices that couldn't compete.
For option C, it is also impossible, instead the opposite is more likely to happen, because as we know, the native species, after a long period of evolution, became almost perfectly adapted to the environment, the appearance of invasive species may help the diseases that the native species weren't immune to spread faster, decreasing the population.
And I guess option D is obviously correct, no need to explain.
How does Earth's distance from the sun and the tilt of its axis promote diversity of life? Answer as soon as possible plz! thank you !
Answer:
It produces our seasons ( spring, summer, fall, winter) as well as the enviroments around the world. If Earth was tilted just a tiny bit more towards the sun half of the world might be on fire but Earth is tilted enough to create the perfect atmosphere for rain forest and deserts
Explanation:
In cities, the area in which rainwater can seep into the ground is reduced. Water flows over roads, then the runoff is carried out to sea through drainage systems. How does the runoff from cities affect ocean systems?
A. Ocean systems are damaged with the loss of sediments.
B. Ocean systems are improved by receiving more water.
C. Ocean systems are improved by the addition of nutrients.
D. Ocean systems are damaged with more pollutants.
Answer:
D Ocean systems are damaged with more pollutants is your answer
Explanation:
I learned this last year
It's D, I just got it right on Study Island
Heat is the transfer of energy. It makes things warmer. Some materials allow heat to flow through them more easily than others. Which statement is correct about insulators and conductors?
A) Both insulators and conductors allow heat to flow easily through them.
B) Neither insulators nor conductors allow heat to flow easily through them.
C) Insulators allow heat to flow easily and conductors do not allow heat to flow easily.
D) Insulators do not allow heat to flow easily and conductors do allow heat to flow easily.
insulators do not allow heat flow easily & conductors allow heat to flow easily
Answer:
Insulators do not allow heat to flow easily and conductors do allow heat to flow easily.
Explanation:
i got it off my quiz i got everything right
Plant roots can be fibrous or a taproot. When there is not enough water in
the environment some plants send their taproot further down into the soil in
search for water, while some with fibrous roots increase the density of their
root systems. What does this demonstrate?
OA) genetic mutation induced by the environment
OB) differentiation of vascular tissue in plants
OC) structural response to the environment
OD) alternation of generations in plants
Answer: i beleive you answer would be D hope this helps :)
Answer:
The best response to this question: What does this demonstrates, regarding two different types of plants, one with a taproot system and the other with a fibrous root system, who alter their aleady existing root system in order to respond to the changes in their environment, would be: C: structural response to the environment.
Explanation:
When talking about plants, and their roots, there are two great categories: the dicot plants, whose root system is known as a taproot, and the monocots, whose root system is fibrous. Each of these systems is separate and particular to each type of plants. They do not combine, and they are unique to each of the categories of plants (dicots, and monocots). However, according to the question, the plants are encountering a climate change, and water has become scarcer. In response to this change, each of the plants, the one with the taproot, and the one with the fibrous root, respond structurally by either enlarging their root further into the soil (taproot), or by sprouting further filaments in the original root system (fibrous root). This, then, shows a structural change and it can happen in plants when environmental changes, not necessarily constant, happen. The plant will only alter its genetic makeup if the changes in environment are continuous and they need deeper changes in the plant, in order to survive.
what is the function of a central vacuole
Answer:The central vacuole is a cellular organelle found in plant cells. It is often the largest organelle in the cell. It is surrounded by a membrane and functions to hold materials and wastes. It also functions to maintain the proper pressure within the plant cells to provide structure and support for the growing plant. (wiki.com) Hope this helps Hon!!
In plant cells, the central vacuole controls the concentration of water, maintains turgor pressure, and stores various substances.
In plant cells, the central vacuole has a number of important functions. It directs the cell's grouping of water in light of changing natural circumstances, chiefly through the upkeep of turgor pressure. The fluid inside the vacuole exerts this pressure, which helps keep the plant cell rigid and upright. For instance, if a plant is not watered, the concentration of water in the soil decreases, allowing water to enter the soil from the cytoplasm and central vacuole. The plant wilts as the cell wall is left unsupported as the central vacuole shrinks. Additionally, the bitter taste of the fluid within the central vacuole deters insects and other animals from eating the plant. In addition, the central vacuole stores pigments that can be used to color flowers and proteins that are found in the developing seed cells.The outer planets-jupiter,Saturn,Uranus,and Neptune-are made up of which gases ?
Answer:
The outer planets—Jupiter, Saturn, Uranus, and Neptune—are made up of mainly hydrogen, helium and nitrogen. Jupiter and Saturn are primarily made up of hydrogen and helium. However, while Uranus and Neptune are primarily composed of hydrogen and helium also, they consist of more ices and methane than Jupiter and Saturn.
Explanation:
Answer:
hydrogen, helium, and ammonia
Explanation:
Hydrogen and helium are mentioned by other answer-givers here, and they are correct. But if you are asking this based off of Gradpoint, the only answer that provides these two gases is combined with ammonia.
what is the rate at which vibrations are produced
Answer:
the rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second. the SI unit of frequency, equal to one cycle per second.
A mouse with curled whiskers migrates from one forest community to another. She mates with other mice in the new community and passes the gene for curled whiskers to her offspring. This is an example of _____.
genetic drift
mutation
gene flow
natural selection
Answer:
Option C: Gene flow
Explanation:
Gene flow is the transfer of genetic variation from one population to another. It is the movement of genes from one population to another population. If the rate of gene flow is high enough, then two populations are considered to have equivalent allele frequencies.
Sometimes gene pools within populations can change because individuals leave that population or new individuals come in. Like water flowing in a river, genes can also 'flow' from one place to another.
For example:
A honey bee carrying pollen from one flower population to another.A caribou from one herd mating with members of another herd A blonde haired, blue-eyed family from Sweden moves to some Asian country where the children grow up, marry and produce offspring who now have the blonde-haired, blue-eyed alleles.Answer:
Gene Flow
Explanation:
Gene flow is the transfer of genetic variation from one population to another. It is the movement of genes from one population to another population. If the rate of gene flow is high enough, then two populations are considered to have equivalent allele frequencies.
Sometimes gene pools within populations can change because individuals leave that population or new individuals come in. Like water flowing in a river, genes can also 'flow' from one place to another.
For Example: A honey bee carrying pollen from one flower population to another.A caribou from one herd mating with members of another herdA blonde haired, blue-eyed family from Sweden moves to some Asian country where the children grow up, marry and produce offspring who now have the blonde-haired, blue-eyed alleles.Winston is most likely using the map for which purpose???
Recreational use for camping, hiking fishing, etc
Answer:
Recreation.
Explanation:
Topography map explain the topographic features of a particular location by using the contour lines. Topography shows the 2D representation of the natural resources and man made feature on the earth's surface.
Winston can do recreation by trecking, camping and hiking. During recreation, topography map is required to know the hydrographic features, terrain features and recreation sites of a particular area.
Thus, the correct answer is option (4).
How are food chains and food webs related
Answer:
A food web consists of many food chains. A food chain only follows just one path as animals find food. eg: A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. A food web shows the many different paths plants and animals are connected.
Explanation:
Answer:
The food webs is formed by several food chains. This is the relationship between the two systems.
Explanation:
Food web is a set of interconnected food chains. The food web represents the many relationships between organisms in an ecosystem.
Ecosystem is the place or environment in which mutual relations between all beings that inhabit it develop. The same living being inserted in an ecosystem can belong to different food chains, playing different roles.
It can feed another living being or serve as food. In the process, the food chains end up meeting and forming a food web.
Food chain is a sequence of living beings that are divided into producers, consumers and decomposers. In the food sequence, living beings feed on those who go before them in the chain, to then be eaten by those who are following, according to the hierarchy.
why do the more complex sugar disaccharides store more energy than monosaccharides
Answer: Because Disaccharides have more chemical bonds
Explanation:
Answer: Because they have more bonds in them
Explanation:
More complex sugars have more bonds available that can be broken down into more simpler form.
When more complex carbohydrates are broken down into simpler carbohydrates then energy is released from the breaking of complex bonds into simpler form.
This is the reason why disaccharides have more energy as compared to that of monosaccharides.
CAN ANYONE HELP THANK YOU VERY MUCH. Btw another Question is : How are low pressure and high pressure systems different?
"A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. As the air rises, the water vapor within it condenses forming clouds and often precipitation too. ... Wind blows away from high pressure."