___________________ are colored chemical compounds that absorb light.
The chloroplasts are colored chemical compounds that absorb light.
Where Chloroplast present?The chloroplasts present in an organelle of plant cell and certain algae.
What is function of Chloroplasts?The function of chloroplasts is to convert light energy into chemical energy through photosynthesis process.
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10. Systematists categorize all living creatures into what three domains?
a. Bacteria, Euglena, Eukarya
b. Bacteria, Archaea, Eukarya
c. Archaea, Plantae, Eukarya
d. Protista, Plantae, Eukarya
e. Prokaryota, Eukarya, Plantae
10. Systematists categorize all living creatures into what three domains?
a. Bacteria, Euglena, Eukarya
b. Bacteria, Archaea, Eukarya
c. Archaea, Plantae, Eukarya
d. Protista, Plantae, Eukarya
e. Prokaryota, Eukarya, Plantae
What encodes genetic information?
The double membrane around the nucleus is called the
If a reaction in one direction releases energywhat is the reaction in the opposite direction
Answer:
absorbs energy
Explanation:
Q; A nucleotide consists of ?
A: A sugar, a protein and uracil
B: A phosphate, a sugar and a nitrogen base
C: A phosphate, an amino acid and a nitrogen base
D: A sugar and a nitrogen base
Answer:
Option B, A phosphate, a sugar and a nitrogen base
Explanation:
Nucleotide is a basic building unit of DNA. Each nucleotide comprises of three major constituents – a) A sugar, b) A phosphate and c) a nitrogenous base.
While forming a DNA molecule, deoxyribose acts as a specific sugar. When the nucleotides are linked together, they are supported by the phosphate bond and sugar as backbone. The two strands of DNA attaches to each other through the nitrogenous bases in a way that nitrogenous base of one nucleotide attached to the nitrogenous base of other nucleotide through hydrogen bonds.
Hence, option B is correct
What is the genotype ration between the cross YyRr x YyRr?
YYRR:2YYRr:2Yyrr:4YyRr:YYrr:2YyRR:yyRR:yyRr:yyrr
2YYRR:2YYRr:2Yyrr:4YyRr:YYrr:2YyRR:yyRR:yyRr:yyrr
YYRR:2YYRr:2Yyrr:4YyRr:YYrr:2YyRR:yyRR:yyRr:2yyrr
YYRR:2YYRr:2Yyrr:4YyRr:YYrr:2YyRR:yyRR:2yyRr:yyrr
Answer:
Option D
1 YYRR: 2 YYRr: 2 Yyrr: 4 YyRr : 1 YYrr : 2 YyRR : 1 yyRR : 2 yyRr: 1 yyrr
Explanation:
The genotype of the cross between dihybrid cross will be as follows
YR
Yr
yR
yr
So the punnet square for this cross will be as follows -
YR Yr yR yr
YR YYRR YYRr YyRR YrRr
Yr YYRr YYrr YyRr Yyrr
yR YyRR YyRr yyRR yyRr
yr YyRr Yyrr yyRr yyrr
The genotypic ratio is as follows -
1 YYRR: 2 YYRr: 2 Yyrr: 4 YyRr : 1 YYrr : 2 YyRR : 1 yyRR : 2 yyRr: 1 yyrr
Hence,option D is the correct answer
A biologist is in the process of classifying a newly discovered fungus. The fungus is a decomposer and has saclike structures. To which group does the organism most likely belong?
fungi that are rusts
fungi that are associated with bread mold
fungi that makes blue cheese
fungi that are autotrophic decomposers
Answer:
B: Fungi that are associated with bread mold
Explanation:
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Which best describes the different features of plant life cycles?
A. A spore is a diploid cell that is produced by mitosis.
B. A zygote is a diploid cell that is produced by fertilization.
C. A spore is a haploid cell that is produced by fertilization.
D. A zygote is a haploid cell that is produced by meiosis.
Answer:
(A) A spore is a diploid cell that is produced by mitosis.
Explanation:
It best describes the different features of plant life cycles.
:)
A spore is a diploid cell that is produced by mitosis describe the different feature of plant life cycles.
What is mitosis?Mitosis, a process of cell duplication, or reproduction, during which one cell gives rise to two genetically identical daughter cells.
Spore, a reproductive cell capable of developing into a new individual without fusion with another reproductive cell. Diploid sporophyte cells undergo meiosis to produce haploid spores. Each spore goes through mitotic divisions to yield a multicellular, haploid gametophyte. Mitotic divisions within the gametophyte are required to produce the gametes.
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What are four examples of cells that go through mitosis?
Mitosis is the process of cell division that produces two identical daughter cells and involves skin, epithelial, and blood cells, as well as cells involved in regeneration, such as those in starfish. It consists of four phases: prophase, metaphase, anaphase, and telophase followed by cytokinesis.
Four examples of cells that go through mitosis include:
Skin cells - Constantly regenerated to replace dead or damaged skin.Epithelial cells - These line the surfaces inside and outside of the body (like the gut) and are frequently renewed.Blood cells - Specifically red blood cells are replaced every four months, maintaining the necessary count in the bloodstream.Regeneration cells in organisms - For instance, starfish regenerate lost arms through the process of mitosis.Mitosis is a process that consists of four phases:
Prophase - Chromosomes condense and the nuclear envelope breaks down.Metaphase - Chromosomes line up along the metaphase plate in the center of the cell.Anaphase - Sister chromatids separate and move to opposite poles of the cell.Telophase and Cytokinesis - Chromosomes decondense, nuclear envelopes form around each set of chromosomes, and the cell divides its cytoplasm to form two daughter cells.The division of eukaryotic cells (cells with a nucleus and more than one chromosome) includes both mitosis and cytokinesis, resulting in the formation of two genetically identical daughter cells.
Select the best description for each cycle:
1.Hydrologic A. photosynthesis and respiration
2.Rock B. erosion, deposition, metamorphism
3.Tectonic C. housed mostly in rock material
4.Carbon D. it's all about water
5.Nitrogen E. subduction, uplift, and mantle convection
6.Phosphorus F. it's all about special bacteria
The right matches are:
1.Hydrologic is matched with D. it's all about water
Hydrology is the science of the earth which is interested in the terrestrial branch of the water cycle, that is to say in the exchanges between the atmosphere, the terrestrial surface and its subsoil. We speak of hydrosphere to designate the part of the planet in which water is located.
2.Rock is matched with B. erosion, deposition, metamorphism
Rocks are natural materials generally solid and formed, essentially or entirely, by an assemblage of minerals, sometimes including fossils (especially in sedimentary rocks), glass resulting from the rapid cooling of a liquid (volcanism, friction .. .) or aggregates of other rocks. The rocks can be formed of a single mineral species (monomeral rocks) or of several (polymineral rocks):
3.Tectonic is matched with E. subduction, uplift, and mantle convection
Tectonics is the study of geological structures of kilometric scale and more, such as mountain ranges or sedimentary basins, and mechanisms that are responsible. This discipline is directly related to plate tectonics.
The lithosphere, the rigid outer shell of the Earth consisting of the crust and part of the upper mantle, is subdivided into plates, called tectonic or lithospheric plates.
4.Carbon is matched with A. photosynthesis and respiration
The 2 main carbon "reservoirs" most directly involved in this cycle are the atmospheric CO2 and the carbon constitutfs of living beings. During photosynthesis, CO2 and water combine (reduction reaction) under the effect of light energy (sun) to form carbohydrates.
Then, in all organisms, these carbohydrates are oxidized to reform water and CO2 during breathing. Part of the energy contained in carbohydrates is converted into ATP. Up to 35% of the CO2 fixed during photosynthesis is released during leaf respiration.
5.Nitrogen is matched with F. it's all about special bacteria
Special bacteria pick up nitrogen and release it in a form that can be assimilated by the plant
To be absorbed by the plant, the nitrogen present in the atmosphere in N2 form must undergo biological transformation processes carried out by microorganisms called nitrogen-fixing bacteria. These nitrogen-fixing bacteria have the main function of capturing the nitrogen present in the air, but also in the soil (thus limiting the losses in the aquifers), and to return it to the plant in an available and assimilable form. Nitrogen in soil is in NO3- form (soil nitrate) and nitrogen in air is in N2 form (atmospheric nitrogen).
6.Phosphorus is matched with C. housed mostly in rock material
Global phosphate mineral resources are estimated at more than 300 billion tonnes in 2014 (US Geological Survey). The largest sedimentary deposits are found in North Africa (Morocco), China, the Middle East and the United States. The exploited phosphorus deposits come mainly from sedimentary or marine deposits, but also magmatic deposits or guano from exotic marine birds.
What are some biotic and abiotic factors of a grizzly bear?
Where would the majority of fresh water on earth be found?
Walking and running both have low impact on joints. True or False The answer is False. Walking is a low impact activity and is potentially less damaging to the joints.
Answer: False
Walking and running are two physical activities performed by living beings. Both of these actions are performed by combination of skeletal and muscular systems. The skeletal system involves bones and joints. The fusion of bones is facilitated by joints. While walking or running the entire mass of the body is exerted on the lower joints of legs which facilitates their movements.
Walking is a low impact activity and is potentially less damaging to the joints whereas running can be dangerous if not maintained in a proper posture.
Further Explanation:
Joint pain is one of the common issues which refers to discomfort, aches, as well as soreness in the body’s joints. This results due to illness or injury. In the case of running and walking, the body mainly engages large muscle groups of hamstrings, gluteals, and quadriceps. When walking, the foot contacts the ground in the heel strike and while running, the people land either on the middle of the foot or on the ball of the foot. Due to this, running has more impact on the joints as compared to walking.
Walking is beneficial and may aid in reducing the inflammation as well as stiffness. It will not make chronic knee worse. Walking is preferred by the individuals having arthritis and may also aid in improving their condition.
Walking mainly strengthens the muscles and aids in shifting the pressure of the body from the joints and also helps in lowering the pain. This elevates the strength well as balance and also aids in improvising the overall health of the individual. This also aids in attaining as well as maintaining a healthy weight, thereby, lessens the body on the joints and also helps in improving the symptoms of arthritis.
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Answer Details:
Grade: High school
Subject: Biology
Chapter: Human skeleton and locomotion
Keywords:
Walking, running, joint pain, joint injury, body, hamstrings, body, quadriceps, arthritis.
An organism has the following characteristics: cell wall, autotrophic, unicellular, and eukaryotic. What kingdom does it most likely belong in?
Animalia
Protista
Plantae
Eubacteria
Answer: Its Protista
Explanation:
The correct answer is Protista as it has a cell wall, autotrophic, unicellular, and eukaryotic.
An organism has the subsequent characteristics: molecular wall, autotrophic, unicellular, and eukaryotic.
The organism belongs to the Protista.Hence the proper solution is B. Protista.The Protist is eukaryotic with the aid of using its capabilities and differs from the fungus, plant life, or animals.These organisms are grouped collectively for convenience.Seaweed belongs to the dominion protist.What are protists?Protists are a collection of all of the eukaryotes that aren't fungi, animals, or plants. As a result, it's far a completely numerous institution of organisms. The eukaryotes that make up this kingdom, Kingdom Protista, do now no longer have lots in not unusual places except an exceptionally easy organization.
Hence clear it is that Protista has the following characteristics: cell wall, autotrophic, unicellular, and eukaryotic.
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Before 1800, most peppered moths in England were light–colored. During the Industrial Revolution, soot and industrial wastes darkened tree trunks. Gradually, the light–colored moths became rare, and the dark–colored ones became abundant. What role did natural selection play?
Answer:
Natural selection allowed physically fit dark colored moths to survive and mate to produce more physically fit offspring.
Explanation:
Due to their dark color, the dark colored moths were not identified by their predators easily. However, the light colored moths were easily identified and preyed upon.
In this way the population of light colored moths reduced largely, thereby allowing more and more mating of light colored moth with dark colored moth or mating of dark colored moth with another dark colored moth so that environmentally fit offspring could be produced which have the capability to save themselves from the predator or any other harm.
In this way natural selection allowed a shift in color of moth from lighter shade to a darker shade.
In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall?
The probability that the resulting offspring will be tall is [tex]$\boxed{\frac{1}{2}}$[/tex] or 50%.
In pea plants, the allele for tallness (T) is dominant over the allele for shortness (t). When a tall pea plant, which can either be homozygous dominant (TT) or heterozygous (Tt), is crossed with a short pea plant, which is homozygous recessive (tt), the resulting offspring will have one allele for tallness and one for shortness (Tt).
Here is the Punnett square for the cross between a tall (Tt) and a short (tt) pea plant:
```
T t
T | TT Tt
t | Tt tt
```
Since the tall parent can be either TT or Tt and the short parent is tt, the possible gametes for the tall parent are T and t, and the only possible gamete for the short parent is t. This results in two possible genotypes for the offspring: Tt and tt.
However, since the allele for tallness (T) is dominant, the genotype Tt will result in a tall phenotype. The genotype tt will result in a short phenotype. Therefore, there is a 50% chance of getting a tall offspring (Tt) and a 50% chance of getting a short offspring (tt).
Thus, the probability of the offspring being tall is [tex]$\boxed{\frac{1}{2}}$[/tex].
When is mitosis complete?
A. When two nuclei have formed
B. When spindle fibers form
C. When chromatids are produced
D. When organelles are produced
A cellular process of the dividing cell and its content from the original cell is called mitosis and it generally occurs in all the somatic cells.
When mitosis is complete then two nuclei are produced.
What is the process of mitosis?When the original parent undergoes replication and splits to produce identical cells with the same ploidy are called mitosis.In this step of cell division, the nuclear genetic and cytoplasmic material of the previous cells splits in such a way that it divides and separates equally into two cells.Therefore, option A. two nuclei are produced is correct.
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Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. Because of this, we would expect osteoblasts to contain numerous?
Given their role in protein and hormone production, osteoblasts are expected to contain numerous ribosomes and endoplasmic reticulum. These organelles are essential in protein synthesis and folding.
Explanation:Osteoblasts, which are immature bone cells, primarily work to produce the protein known as osteoid and some hormones. Because of these functions, we would expect osteoblasts to have many ribosomes and endoplasmic reticulum.
Ribosomes are responsible for creating proteins, while the endoplasmic reticulum plays a vital role in the production and folding of proteins, including hormones. Therefore, it's crucial for osteoblasts, which are highly active in protein synthesis, to have an abundance of these organelles to carry out their functions efficiently.
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A molecule of water is made from.
Answer:
H2O
Explanation:
Water molecule is made of 2 hydrogen atoms bonded with covalent union (sharing electrons) with 1 oxigen molecule
Match the descriptions to the processes.
A) Ice cream starts dripping down the sides of an ice cream cone.
B) Fog is created by using dry ice.
C) Frost forms on trees on a very cold day.
D) The mirror gets fogged up when you breathe on it.
E) Your wet hair dries after a few minutes.
F) Liquid glass cools and hardens.
1) sublimation
2) deposition
3) condensation
4) melting
5)evaporation
6)freezing
Answer:
A) Ice cream starts dripping down the sides of an ice cream cone: melting
B) Fog is created by using dry ice: sublimation
C) Frost forms on trees on a very cold day: deposition
D) The mirror gets fogged up when you breathe on it: condensation
E) Your wet hair dries after a few minutes: evaporation
F) Liquid glass cools and hardens : freezing
Explanation:
Sublimation process where solid state changes to gaseous state by escaping liquid state.
Deposition process where gaseous state changes to solid state by escaping liquid state.
Condensation process where gaseous state changes to liquid state.
Melting is the process where solid state changes to liquid state.
Evaporation process is a process where liquid state changes to gaseous state.
Freezing is the process in which liquid changes to solid state.
Due to human activity, the temperature of the ocean has increased to above normal conditions, causing coral bleaching to occur. What consequence on ocean ecosystems will this event most likely have?
Larger animals, like marine mammals, must adapt to new sources of food.
More sediment in the water blocks sunlight from reaching the reef system.
Reef food webs are being disrupted and significantly losing biodiversity.
The water is becoming more acidic, causing shells of plankton to weaken.
Answer:
The answer is C - Reef food webs are being disrupted and significantly losing biodiversity.
Explanation:
Which organelles are found in both plant and animal cells?
A caterpiller eats the leaf and a bird eats the caterpiller in this interaction the bird is a?
Final answer:
In the described interaction, the bird preying on the caterpillar is a carnivore and a secondary consumer in the food web.
Explanation:
In the interaction where a caterpillar eats a leaf and a bird eats the caterpillar, the bird is acting as a consumer. Specifically, the bird is a type of consumer known as a carnivore because it eats other animals. In this case, since the bird consumes the caterpillar, which is itself an herbivore-consuming plant material, the bird falls into the category of a secondary consumer in the food web.
Compare neap and spring tides. Give two comparisons in your answer.
Which of these statements most likely describes what happens if DNA is not duplicated during interphase?
A.
The new cells would be more numerous.
B.
The new cells would have an incorrect number of chromosomes.
C.
The new cells would have too many chromosomes.
D.
The new cells would have too many or too few nuclei.
1. In two to three paragraphs, name your ecosystem, tell where it is (including state and nearest town), state its limits, discuss why defining limits is important, and include any data you collected during your study of the physical limits of the ecosystem. Explain why this ecosystem is an open system. You may include a photograph or map of your ecosystem, but these are not mandatory. Be clear, thorough, and scientifically accurate.
The Amazon rainforest in Brazil is used as an example of an ecosystem. Defining the physical limits of an ecosystem is essential to understand the interactions between organisms and their environments. This ecosystem is considered an open system because it exchanges energy and matter with its surroundings.
Explanation:The ecosystem under consideration in this response is the tropical rainforest located in the Amazon in Brazil. The nearest town to this ecosystem is Manaus, a city in the heart of the Amazon rainforest. The physical limits of this ecosystem are determined by geographical factors such as the Amazon River and changing climate conditions.
Defining the physical limits of an ecosystem is crucial to understand the interactions between organisms and their environment, both biotic (living) and abiotic (non-living) elements. Data collected showed how nutrients and energy flow from one organism to another, and between organisms and the abiotic components like air, water, soil, and sunlight. This Amazon rainforest is an open system because it exchanges energy and matter with its surroundings.
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a mushroom and a humpback whale are alike because both are
Enzymes affect the reactions in living cells by changing the
Select one:
a. products of the reaction.
b. speed of the reaction.
c. temperature of the reaction.
d. pH of the reaction
The peripheral nervous system connects the body to the