The ratio of the offspring with white petals to the total number of offspring Is 1:4 or 25%.
Heterozygous is different forms of a particular gene that is inherited from parent. e.g Gene A has form of A and a
A cross between two heterozygous pea plants
Pea plant A is Aa
Pea plant B is Aa
Therefore, a cross between the 2 plants will give
Aa×Aa
I
AA Aa Aa aa ,The total number of offspring is 4 (AA, Aa,Aa,Aa)
where AA,Aa and Aa are Purple pea plant and aa is a white pea plant. Since the number of pea plant is 4, the ratio of the offspring with white petals will be 1:4 in the number of offspring in % will be
1/4*100= 25% of the total population.
Therefore, The ratio of the offspring with white petals to the total number of offspring is 1:4 and the express this in a percentage is 25%.
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Fossil fuel dependence has an impact on which of the following?
A)
the environment
B)
economics
C)
poverty
D)
international security
E)
all of the above
Which is used to make cell walls
Answer:

Figure 3 : Plant plasma membrane and cell-wall structure
A plant cell wall is arranged in layers and contains cellulose microfibrils, hemicellulose, pectin, lignin, and soluble protein. These components are organized into three major layers: the primary cell wall, the middle lamella, and the secondary cell wall (not pictured). The cell wall surrounds the plasma membrane and provides the cell tensile strength and protection.
© 2008 Nature Publishing Group Sticklen, M. B. Plant genetic engineering for biofuel production: towards affordable cellulosic ethanol. Nature Reviews Genetics 9, 433-443 (2008). All rights reserved. 
Figure Detail
Besides the presence of chloroplasts, another major difference between plant and animal cells is the presence of a cell wall. The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall. Plant cells have high concentrations of molecules dissolved in their cytoplasm, which causes water to come into the cell under normal conditions and makes the cell's central vacuole swell and press against the cell wall. With a healthy supply of water, turgor pressure keeps a plant from wilting. In drought, a plant may wilt, but its cell walls help maintain the structural integrity of its stems, leaves, and other structures, despite a shrinking, less turgid vacuole.
Plant cell walls are primarily made of cellulose, which is the most abundant macromolecule on Earth. Cellulose fibers are long, linear polymers of hundreds of glucose molecules. These fibers aggregate into bundles of about 40, which are called microfibrils. Microfibrils are embedded in a hydrated network of other polysaccharides. The cell wall is assembled in place. Precursor components are synthesized inside the cell and then assembled by enzymes associated with the cell membrane (Figure 3).
What Are Vacuoles?
Plant cells additionally possess large, fluid-filled vesicles called vacuoles within their cytoplasm. Vacuoles typically compose about 30 percent of a cell's volume, but they can fill as much as 90 percent of the intracellular space. Plant cells use vacuoles to adjust their size and turgor pressure. Vacuoles usually account for changes in cell size when the cytoplasmic volume stays constant.
Some vacuoles have specialized functions, and plant cells can have more than one type of vacuole. Vacuoles are related to lysosomes and share some functions with these structures; for instance, both contain degradative enzymes for breaking down macromolecules. Vacuoles can also serve as storage compartments for nutrients and metabolites. For instance, proteins are stored in the vacuoles of seeds, and rubber and opium are metabolites that are stored in plant vacuoles.
Conclusion
Plant cells have certain distinguishing features, including chloroplasts, cell walls, and intracellular vacuoles. Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help reg
How is the lower respiratory system related to the
circulatory system?
The lower respiratory system moves oxygen
into the blood; the circulatory system delivers
blood to the body.
The lower respiratory system delivers blood
to the body; the circulatory system moves
oxygen into the blood.
The lower respiratory system moves oxygen
into the blood; the circulatory system delivers
air into the lungs.
Answer:
b
Explanation:
Answer:
It's A
Explanation:
What is a nucleotide?
O A matched pair of amino acids
O A building block of the nucleus
O A single "letter" of DNA
An entire strand of DNA
Answer:
A single letter of DNA.
Explanation:
a. If you were designing a pigment to maximize light capture in a new kind of solar array what light absorbing properties would have?
b. what molecule in the sumary equation for photosynthesis ends up in the sugars made by photosynthesis?
c. When Jasmine was a baby, her parents planted a jasmine plant weighing 1 kg in a container in their yard with 50 kg of soil. When Jasmine was 18, the plant was estimated to weigh 75 kg. Then it was time to transplant the plant into the family yard so it could continue growing. When the soil in the container was weighed, its mass was 50 kg. Over the years Jasmine's parents neither added nor removed soil from the container with the plant in it. How did the plant increase in mass by 74 kg while the soil did not change in mass and never needed adding to over the years?
Answer:
Following are the solution to the given points:
Explanation:
In point a:
When a light absorption dye was to be introduced to optimize the plant's absorbing capacity, the paint could absorb wide different wavelengths besides the observable light spectrum. It must also absorb the UV only at IR light rate to maximize the fluorescence intensity.
In point b:
Its molecule in the production of pentose sugar is the nitrogen and hydrogen atoms of carbon dioxide and water ions of air. Its water oxygen atoms are emitted through oxygen atoms during this phase.
In point c:
Its plant increased with weight while decreasing the weight of the earth, so because manufactured goods needed for plant growth are carbon dioxide from water and air, provided to a plant every day and nitrogen extracted from of the atmosphere through means of microbial materials into nitrogen. So, even if the plant raised its weight, the soil does not change the weight.
PLEASE HELP ME!!!! I'M ALMOST OUT OF TIME!!
Answer:
Impact metamorphism-3
Dynamic metamorphism-2
contact metamorphism-1
regional metamorphism-4
Many scientists are worried that the increased amount of carbon dioxide in Earth's atmosphere will _____
A. make it harder for animals to breathe
B. use up all our fossil fuels
c. cause Earth to warm up unnaturally
D. make green plants grow too fast
How are photosynthesis and cellular respiration connected as a cycle?
Answer:
Photosynthesis is when energy, carbon dioxide and water react to produce glucose and oxygen. It is an endothermic reaction (takes in more energy than it gives off).
glucose + oxygen + (energy) → carbon dioxide + water
C 6 H 12 O 6 + 6 O 2 → 6 CO 2 + 6 H 2 O
Respiration is the process of producing energy from glucose. It uses glucose and oxygen to give water, carbon dioxide and energy (thus making it exothermic).
carbon dioxide + water + energy → glucose + oxygen
6 CO 2 + 6 H 2 O → C 6 H 12 O 6 + 6 O 2
As you can see from the equations, they are essentially the reverse of each other.
Another difference is how they are used. Respiration occurs in the mitochondria of all living cells, whereas only plants photosynthesize.
In plants, they make their own glucose using the sun's energy, then respire to allow them to use the glucose for the energy they can use. The glucose can also be stored and used in many other ways other than in respiration.
Humans have 46 chromosomes in each of their body cells. Jason has a small cut on his right arm and his body cells are undergoing mitosis to repair the damage. How many chromosomes will be in each new body cell after cell division?
Answer:
23
Explanation:
Identify the kind of response to the following argument: Argument: In nature, a species is more likely to survive when its weak members die out, so we should let the weak in our society die out. Response: In nature, a species is more likely to survive when it lives in its natural habitat, so we should live in our natural habitat. A. refutation by parallel reasoning B. refutation by reduction to absurdity C. refutation by counterexample D. not a refutation
Answer:
A. refutation by parallel reasoning
Explanation:
A refutation by parallel reasoning is an analogical inference between two arguments. This type of refutation occurs when an argument is invalidated by showing that the argument's conclusion is not supported by its premises, thereby the structure of the argument is incorrect. The parallel argument should demonstrate that the premises of the target argument are founded in a fallacy or don't provide a strong enough rationale to support/accept its conclusion.
The elephant reproduces
sexually. If the parent cells
have 38 chromosomes, how
many chromosomes do the
elephant sex cells have?
Answer:
5 sex cells
Explanation:
During which stage of the cell cycle do Mitosis and Cytokinesis occur? (I will give brainliest?
Answer:
Mitosis occurs in Interphase and cytokinesis occurs in Anaphase
Explanation:
What is the name for all the plants and animals that live together in a habitat?
Answer:
Biotic community
Explanation:
Definition of biotic :living organisms in the ecosystem .Example Frog,fish,and etc.
Definition of Abiotic: Nonliving things in the ecosystem. Examples wind,water,and etc.
Flowers are the ______________ structures of plants.
A. meiosis
B. reproductive
C. motosis
Answer:
B. reproductive
Explanation:
Answer: reproductive
Explanation: flowers contain the reproductive organs of a plant, the stamen (male) and/or pistil, (female)
What are the yellow arrows showing . Please no links :) ill mark brainlest if you give correct answer
Answer:i am not 100 percent sure but i think the yellow arrows are showing the wasted carbon
How are physical properties of matter observed?
Using your five senses.
Through experiments.
Only using a microscope.
Only using a telescope.
When tectonic plates are colliding, what is the geological event that will NOT occur at a convergent boundary?
Question 2 options:
Mountains
Volcanoes
Volcanic Island
Rift valley
The thin outer shell of Earth is broken into large pieces which is called as tectonic plates. Rift valley is not the event of collision between tectonic plates.
What is rift valley?Rift valley is the low land between highlands and mountain ranges created by geographical rift.
These can be formed on both land and deep oceans, where they are made by seafloor spreading process.
It is caused when two tectonic plates moves apart from each other.
Thus, the correct option is D.
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Suppose you are a politician representing the interest of a small community whose economic health depends on the fishing industry. How would you approach the problem of the overfishing of nearby species?
Answer:
To create more jobs in other fields.
Explanation:
As a politician, more jobs has to be created in other fields such as industries, education sector etc in order to avoid overfishing in the areas because the people related to fish industry will move to join other jobs that gives good pay as compared to fishing. If there are more jobs in other fields then more people will leave the fish industry and join jobs in other fields. In this way, we can avoid overfishing problems in the region that causes decrease in the population of fish species in water.
What do you think accounts for the higher risk of earthquakes in Los Angeles than in Chicago?
Answer:
Los Angeles, California, rests on a major (and active) fault line known as the San Andreas Fault. It's the line between the Pacific and North American tectonic plates, and more seismic activity is measured daily than on the New Madrid Fault, which runs through New Madrid, Missouri, and around the mid-west. Chicago is still at risk, of course, but not nearly as much, given the small activity of the fault line.
The San Andreas Fault, a significant (and active) fault line, runs through Los Angeles, California.
Why is a higher risk of earthquakes in Los Angeles?There is more seismic activity recorded there every day than on the New Madrid Fault, which passes through New Madrid, Missouri, and other midwestern cities.
It is the boundary between the Pacific and North American tectonic plates. Chicago is still in danger, of course, but not nearly as much as before due to the fault line's low level of activity.
Therefore, movement along the San Andreas Fault and its numerous accompanying faults, which define the tectonic border between the Pacific and North American tectonic plates, is what causes earthquakes in California.
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Can someone please correct me or tell me if I’m correct please that will be lovely
Answer:
A
Explanation:
Destruction of habitat is not going to preserve the habitat.
Below shows a process that occurs in cells. The type of building blocks represented by the letters A, B, and C in this process are:
A: Nucleotides
B: Codons
C: Amino Acids
D: Nitrogen bases
Study the image, and then choose the statement that best describes the image.
Answer:
The nitrogen system aka what we have
Explanation:
Two ramps of equal height are placed 1 m apart, and balls of equal mass are released from the top of each ramp. What happens to the motion of the balls when they meet in the middle?
The balls will move in a random direction.
The balls will stop.
The balls will continue moving forward.
Answer:
The ball will stop
Explanation:
I don't know much about it.
Answer:
the balls will continue moving forward
How does nectar increase the ability of plants to reproduce?
Answer:
nectar is very sweet juice which attracts insects.
when those insects suck the nectar the pollen grains sticks to the body of those insects and then when they fly and sit on the other flowers and then those pollen grains are then transferred to the stigma of that flower which then forms a zygote and then forms a new flower.
and this is how nectar helps to reproduce
Can raccoons eat Newts and salamanders?
Answer:
yes
Explanation:
Most non-vascular plants are small because they-
A. Can only transport water short distances
B. Have thick leaves
C. Usually grow in deserts
D. Are unable to perform photosynthesis
PLEASE HELP I NEED THIS ASAP!!!
Answer:
A. Can only transport water short distances
Explanation:
Nonvascular plants are very short because they cannot move nutrients and water up a stem
Hope this helps! =w=
endocrine glands are called ductless gland give scientific reason
Answer:
their secretions reach the blood directly without ducts
Plsssss help meh ASAP
Answer:
Cost
Explanation:
Answer:
The answer Is D = Cost
Explanation:
Characteristics such as melting point, boiling point, density, solubility, color, odor, etc. are physical properties. So the only one left is D. Cost :)
Help me please!
What information can be gained about the structure and function of plants by ring barking?
Answer:
About its different layers and their functions in the plant body.
Explanation:
By studying the structure and function of the plants by ring barking, we find out that the ring barking is very important for the plant because it provides support as well as protection to the inner part of the stem against environmental conditions such as temperature and intense light etc. These barks are responsible for the storage of water which can be used during drought conditions. This ring barking provides information about different layers of stems such as periderm, cortical and phloem tissue that has a specific function in the plant body.
How do viruses reproduce during the lysogenic cycle?