Answer:
The correct answer would be option B.
Explanation:
Coniferous trees carry both male and female sporophylls cones on the same mature sporophyte mostly. Conifers are monoecious plants because the bear both male and female cones such as pines. Pines, generating 2 different types of spores: female megaspores and male microspores.
Male cones are smaller in comparison of female cones. Scale present in a male cone contains the pollen that can reach to a female cone to make a egg or seed.
Thus, the correct answer is option b.
Answer:
Most coniferous trees have both male and female cones.
Explanation:
Your welcome.
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
#SPJ3
In an experiment, some magnesium ribbon is weighed and its mass is recorded. It is then placed in a crucible and heated. Once hot enough, it combines with oxygen to form magnesium oxide (MgO). Observe the data table provided. Why does the law of conservation of mass appear violated?
Answer:
B) Some of the product escaped as a vapor from the crucible.
Explanation:
Impurities and magnesium not reacting completely would not lead to less product necessarily. Nitrogen gas getting into the crucible would lead to a larger product mass.
The perceived violation of the law of conservation of mass in the experiment is due to the absorption of oxygen from the surroundings. This makes the final product's mass greater than the original magnesium, but it does not violate the law as total mass before and after the reaction is the same.
Explanation:The reason it may appear that the law of conservation of mass is 'violated' in this experiment could be due to the absorption of oxygen from the air to form magnesium oxide. The original mass was just the magnesium ribbon, but after heating, the resulting compound included both the mass of magnesium and the mass of the oxygen it combined with from the air, which made it appear as though the mass had increased. However, this doesn't violate the law of conservation of mass because the mass of the magnesium plus the mass of the oxygen combined equals the mass of the magnesium oxide product. The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction, and this principle still holds true in this scenario.
Learn more about law of conservation of mass here:https://brainly.com/question/9391940
#SPJ3
To what conclusions did Redi and Pasteur's experiments lead?
Maggots spontaneously generate from meat.
Life can spontaneously generate.
Microbes spontaneously generate from broth
Life does not spontaneously generate.
Answer:
A. Maggots spontaneously generate from meat.
Experiments by Redi and Pasteur's disproved spontaneous generation, showing maggots come from flies and microorganisms from existing life, summarizing that 'Life only comes from life'.
Explanation:Experiments Disproving Spontaneous GenerationThe experiments conducted by Francesco Redi and Louis Pasteur led to the conclusion that life does not spontaneously generate. Redi's experiment involving meat, maggots, and flies demonstrated that maggots are the offspring of flies and do not spontaneously appear from meat. Similarly, Pasteur's swan-neck flask experiment showed that microorganisms did not appear in a sterilized broth unless it was exposed to air, indicating that microbial life comes from existing life and not from non-living matter. Pasteur concluded, "Omne vivum ex vivo" (Life only comes from life). These experiments were pivotal in debunking the long-held theory of spontaneous generation.
Which wave will probably be diffracted the most?
a. the wave with the longest wavelength
b. the wave with the highest amplitude
c. a longitudinal wave
d. the wave that strikes a solid barrier with the slowest speed.
15 points answer!
Answer:
A
Explanation: bc it has more stuff to hit
The wave with the longest wavelength will probably be diffracted the most. This is because diffraction, or the bending of waves around obstacles, is closely related to the wavelength of the wave. The longer the wavelength, the more a wave tends to diffract.
Explanation:The wave that will probably be diffracted the most is a. the wave with the longest wavelength. Diffraction is the bending or spreading of waves as they encounter an obstacle or gap. This concept is closely related to the wavelength of a wave, which is the distance between one wave crest and the next. The longer the wavelength, the more a wave tends to spread out or diffract around obstacles. This is why low-frequency sound waves (which have long wavelengths) can easily be heard around corners, but high-frequency light waves (with their shorter wavelengths) are largely blocked by obstacles.
Learn more about Wave Diffraction here:https://brainly.com/question/10582210
#SPJ3
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.
Drag the tiles to the boxes to form correct pairs. Match the air masses with their corresponding characteristics
Answer:
cold and dry-- continental polar
cold and moist-- maritime polar
warm and moist-- maritime tropical
hot and dry-- continental tropical
very cold and dry-- continental arctic
Explanation:
Answer:
Cold and dry -Continental Polar
Cold and moist- Maritime polar
Warm and moist-Maritime tropical
Hot and dry- Continental tropical
Very cold and dry- Continental arctic.
Explanation:
Continental tropical :It is defined as that air mass which is warm and dry form over land in tropical region.
Maritime tropical :It is defined as that air mass which is warm and moist form over the ocean in tropical region.
Continental polar:It is defined as that air mass which is cold and dry form over land in polar regions.
Maritime polar : It is defined as that air mass which is cold and moist form over ocean in polar regions.
Continental arctic: It is defined as that air mass which is very cold and dry and originate from the snow covered regions of northern Canada.
Therefore,
Cold and dry -Continental Polar
Cold and moist- Maritime polar
Warm and moist-Maritime tropical
Hot and dry- Continental tropical
Very cold and dry- Continental arctic.
Ethan asked Jamal why he placed the two alleles from each parent into separate rows and columns, instead of keeping each parents two alleles together. Ethan made the following Punnett square to show Jamal how he thought the Punnett square should be set up instead
Answer: I think your punnett square is incorrect because it has 4 letters in one box. There must only be two letters in each box since your punnett square doesn't not contain four squares in a row or column.
Explanation:
It is perhaps Rr, Rr, Rr , and Rr again since they all start with a capital letter. The dominant allele takes over.
What happens to the nitrogen in a rabbits body
when it dies
Answer:
When rabbit dies, the nitrogen in the rabbits body is released into the soil by decomposition.
Explanation:
When rabbit dies its body is decomposition takes place. Decomposition is process of breaking down of the dead remains of the plants, animals and insects into tiny pieces by free living bacteria, fungi and worms present in the environment .
During the decomposition process the nitrogen present in the dead rabbit body is released into the soil in the form of ammonia. The bacteria(nitrifying bacteria) present in the soil converts this ammonia into nitrates so that it can be again used by the plants. Now plants intakes this nitrates for photosynthesis process. This process of fixing nitrogen back into the atmosphere is called nitrogen cycle.
Final answer:
When a rabbit dies, the nitrogen in its body undergoes catabolism, or breakdown, along with other macromolecules. Mammals like rabbits convert the toxic ammonia into urea through the urea cycle, which is then excreted in their urine.
Explanation:
When a rabbit dies, the nitrogen in its body undergoes catabolism, or breakdown, along with other macromolecules. During this breakdown, carbon, hydrogen, and oxygen are extracted and stored in the form of carbohydrates and fats, while excess nitrogen is excreted from the body. To detoxify the nitrogenous waste, mammals like rabbits convert the toxic ammonia into urea through the urea cycle. Urea is then excreted in their urine.
In what ways are fats and steroids similar to each other, and in what ways are they different?
Answer:fats and steroids are both lipids and are both hydrophobic. Fats store energy for molecules and steroids function as a messenger around the cell membrane.
Explanation:
Answer:
Both fats and steroids are a form of lipids with different structure and functions.
Explanation:
Both fats and steroids are a form of lipids with different structure and functions.
The structure of fats consists of fatty acid (which is a long chain of carbons with a carboxyl group attached to its one end) and glycerol while steroid has four fused ring structure with base of carbon. Out of the four fused ring , three are six membered ring while one is five membered ring.
Steroid is very essential for the metabolic processes and immunity within the body while fats store energy and protect vital body organ
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).
What is 123,000,000,000,000,000,000,000in light years
Answer:20923258787.859886169
Explanation: google miles (presumably that is your unit, but if not, let me know what the original unit was to light years and type in that number
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.
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
His muscle cells have experienced ______________ that led to production of _______________.
Answer:
Anaerobic respiration; lactate
Explanation:
By utilizing the previous knowledge about respiration i am answering the question in one of the possible ways.
Anaerobic respiration is considered to be the process in which cells respire in absence of oxygen. During this, glucose molecules are broken down to produce energy along with the production of lactic acid. This process is used by small organisms as well as eukaryotic cells at the time of need such a s strenuous exercise (when oxygen supply is low )to produce energy. When the production of lactic acid is high during anaerobic respiration, this leads to production of more energy in form of ATP which side by side causes pain in muscles and a condition called muscle cramps.
Hope it helps!
Answer:
anaerobic respiration; lactate
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 （╹◡╹）
Need help with 17. - 21
Answer:
False ,true,true, false ,true,false,
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.
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:
A particular plant bears large-sized fruits. Another variety of the same plant is resistant to pests. What process should be adopted to combine the traits of the two varieties of plants?
A) Inbreeding
B) Pure breeding
C) Hybridization
D) Line breeding
Hybridization is the process of interbreeding between the plants belonging to different species (interspecific hybridization) or genetically distinct individuals of same species (intraspecific hybridization). The offspring produce by this method is called as hybrid. The hybridization allows the breeding between parent plants that have desired characteristics, which results in production of hybrid having desired characteristics of both of the parents.
Therefore, in the given situation hybridization is the process that should be adopted to combine the traits of the two varieties of plants.
I deeply apologize if this is not what you meant.
Answer:
C Hybridization
Explanation:
through which of the following media can sound waves travel ?
A)air,water,and solids
B)air and solids only
C) air and water only
D)water and solids only
I believe the answer is A
Answer:
A) Air, Water, And Solids
Explanation:
Sound energy is transferred by wave-like disturbances that spread away from the source through a medium.
Sound waves can travel through a variety of media including air, water, and solids.
Sound cannot travel in a vacuum.
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.
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:
food webs and food chains related
Explanation:
Food webs are made of many food chains
I hope this helps
Which of the following is a volatile organic compound?
industrial smog
methane
nitrogen oxide
carbon dioxide
it's environmental science
Answer:
Nitrogen Oxide
Explanation:
Volatile organic compounds (VOCs) are compounds that easily become vapors or gases.
Nitrogen Oxides are gases and compounds composed of nitrogen and oxygen. They are emitted from the burning of coal, oil, gas, cigarettes, stoves, wood burning, etc. They have a high photochemical reactivity, and when they do react with sunlight, they create smog, one of the most visible signs of poor air quality.
https://foobot.io/guides/list-of-all-volatile-organic-compounds.php
What's the middle layer of the ocean known as?
Answer:
The middle layer is known as pycnocline
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!
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 determines the inherited traits of an organism
A) The proteins produced by a cell
B) The number of chromosomes in a cell
C) The size of the chromosomes
D) The genes of its chromosomes
Answer:
D) The genes of its chromosomes
Explanation:
Mitosis
I think it could be b or d...prob d though
Consider the classification levels of a honey bee.
Eukarya
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Apis
mellifera
To which class do honey bees belong?
Arthropoda
Insecta
Hymenoptera
Apidae
The answer would be insecta
Answer: Insecta
Explanation:
Bee belongs to class insecta and they have segmented body, exoskeleton and joined legs.
Bees are the flying insects that are closely related to the wasps and ants. They help in the pollination as they carry pollen grains from one place to another.
They are adapted for feeding on nectar and pollen, that derives energy for the metabolism of the body.
the first planet to be discovered using mathematical prediction was
Answer:
the planet is Neptune
Explanation:
it was discovered in 1781
Answer:
Neptune
Explanation:
the niche of an animal is best defined as?
A. all the way an animal fits into its environment
B. the number of individuals of the species the environment will support
C. the same as its lifespan
Answer:
A. all the way an animal fits into its environment.
Explanation:
The niche of an animal encompasses all the ways it fits into its environment, including its role and interactions with biotic and abiotic factors. It also involves the habitat or physical environment to which the species is adapted.
The niche of an animal is best defined as all the ways an animal fits into its environment. This multi-dimensional space details the role and position of a species within its ecosystem and includes several key parameters such as the essential resource limits, and the species' interactions with both biotic and abiotic factors. Another critical aspect of a species' niche is its habitat, which is the physical environment to which it has become adapted and where it can survive. This environment is generally described by abiotic factors like sunlight, temperature, and precipitation, all of which play a role in the survival and characteristics of the species.
A species' niche involves a range of environmental factors that allow it to survive and reproduce, which may include specific climate conditions, interactions with other species, and access to resources. For instance, a particular tree species' niche may include the ability to live within a certain temperature range, receive a minimum amount of precipitation, and rely on certain fungi for root health. Therefore, the function or occupation of a life-form within a community that is a niche combines an organism's physical, chemical, and biological interactions within its environment.