Answer:
25 membranes
Explanation:
A light microscope makes it possible for the scientist to view and visualize structures with a minimum of 200 nm in diameter. So, if a typical membrane is about 8 nm wide, then we can divide the minimum diameter with the given width of the typical membrane to determine the number of membranes.
SO;
[tex]= \dfrac{200 \ nm}{8 \ nm / membranes}[/tex]
= 25 membranes
So, in a light microscope, there are about 25 membranes that will align side by side to view the structure.
For a particular plant, red flowers (A) are dominant over yellow flowers (a). An initial cross was made between a plant that was true-breeding for red flowers and another plant true-breeding for yellow flowers. F1 progeny, all having red flowers, were allowed to self- pollinate and form seeds, which were then planted to generate F2 progeny. Pollen from all the resulting F2 plants was pooled and used to fertilize true-breeding yellow plants. What proportion of the progeny resulting from this cross would be expected to have yellow flowers
Answer:
The correct answer would be - 1 out of 4 or 25% offspring would be expected to have yellow flowers
Explanation:
Red flowers are dominant over the yellow flower, initially, a cross was made between true-breeding red and true-breeding of yellow flowers
Red flower plant gametes, a and a and red plants gamete would be A and A.
so,
A A
a Aa Aa
a Aa Aa
in this cross, all the offspring are red as they have a heterozygous genotype. Now self-pollinating these F1 generation offsprings, gametes would be A and a for both parents:
A a
A AA Aa
a Aa aa
in the f2 generation, there is only 25% of offsprings are yellow flowers.
The fingers are_____to the wrist
a human cell has ____ chromosomes
a. 4
b. 23
c. 101
d. 46
Answer:
23
Explanation:
i learned it in bio last year so hopefully i remembered it correctly :)
which of the following does not belong to the group
a. cocci
b. bascilli
c. cilia
d. spirilla
How would the world be different if ice were more dense than water?
When water is being transported from the roots to the leaves of a plant or tree, water vapor eventually escapes through air spaces in the plant or tree. More water travels up to replace the lost water due, in part, to the ________________ of water.
Answer:
What the actual truck
Explanation:
1.Paramecium was found to occupy 20% of the FOV of a microscope at 40X magnification power. How many paramecium can be accommodated within this FOV
Answer:
Five (5)
Explanation:
A total of five (5) paramecia can be accommodated within the FOV.
The field of view of a microscope represents the area of the visible region under the ocular/eyepiece at a specific magnification. In other words, the diameter of the circular area visible through the ocular of the microscope at a specific magnification represents the field of view.
If a paramecium was found to occupy 20% of the total field of view of a microscope at X40 magnification, then the total number of paramecia that can be accommodated within the field would be:
100/20 = 5 paramecia
The number of many paramecium can be accommodated within this FOV
is Five (5)
Given that,
Paramecium was found to occupy 20% of the FOV of a microscope at 40X magnification power.Based on the above information, the calculation is as follows:
[tex]= 100\div 20[/tex]
= 5
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Sickle cell anemia and albinism are both recessive traits in humans. Imagine that a couple, already pregnant with fraternal twins, has just learned that they (the couple) are both heterozygous for both of these traits. As the couple's genetic counselor, the couple asks you what is the probability of having both of the twins be albino and have sickle-cell anemia.
Answer:
81/256
Explanation:
By doing a test cross of albinism and sickle cell anemia you'll see that the probability that one child is unaffected by either conditions will be 9/16. Both children would be 9/16 * 9/16.
Since fraternal twins are developed from two separate fertilization events the probability chance will be independent.
Winds transfer energy in the atmosphere by the process of _________.
conduction
convection
radiation
precipitation
Describe why the amount of light available to the Chlorella culture might affect the growth dynamics of the alga.
Answer:
See the answer below
Explanation:
The amount of light available to Chlorella culture might affect the growth dynamics of the alga because the light is an important factor necessary for the synthesis of carbohydrates and other important molecules in the body of the organism.
The process of synthesizing carbohydrates is termed photosynthesis and during this process, the energy of light is used to excite the photosystem of the chlorophyll of the organism, leading to the release of electrons whose energy is used to synthesize an energy molecule that is utilized in the latter part of the photosynthetic process. The entire process of photosynthesis can be summarised as an equation below:
[tex]6CO_2 + 6H_2O + light --> C_6H_1_2O_6 + 6O_2[/tex]
The manufactured carbohydrates act as food for the organism and are broken down during respiration to release energy necessary to drive metabolic processes that bring about growth and development.
Hence, the amount of light is an important factor that might affect the growth dynamics of all green plants, including the Chlorella.
The amount of light available to the Chlorella culture affect the growth dynamics of the alga because of photosynthesis.
Chlorella is an alga means it is an autotrophic organism that produce food by using the sunlight.
In the absence of light, Chlorella will not be able to survive in the culture.In presence of low light, Chlorella will grow slowly due to low production of food.In presence high intensity light, Chlorella will grow faster.Therefore, the amount of light available to the Chlorella culture affect the growth dynamics of the alga because of photosynthesis.
To know more about photosynthesis,
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PLZ HELP
Recall from the video why homeostasis is so important. What could happen if the interactions between the parts of the body did not operate properly to maintain homeostasis?
Answer:
the most frequent thing so that homeostasis does not occur is the imbalance of some of the systems, such as the respiratory or endocrine, among others ... and also the state of shock of the organism.
Explanation:
The states of shock are as follows:
hypovolemic or hypervolemic shock, hypo or hyperglycemic shock, anaphylactic shock, hypotensive or hypertensive shick.
These shocks are very difficult to reverse, they quickly deregulate homeostasis and also require a rapid medical response.
The nose is what to the mouth
Answer:
the part projecting above the mouth on the face of a person or animal, containing the nostrils and used for breathing and smelling. The mouth and Nose are like team, each help with food, or inhaling and exhaling air. :)
Compare the reactants and products in the chemical equations below. Which statement best describes the relation between matter and energy?
Answer and Explanation:
Chemical reactions are very complex processes which include the collision of molecules. During the chemical reactions, bonds between the breakdown of the atom and transformed in new ways. The chemical compounds that react together during the chemical reactions are called reactants, shown on the left side of the equation. They are broken down during the reaction and used as the reaction progresses. The chemical compounds that are formed from the rearrangement and breakdown of the reactants are called products. The products are shown on the right side of the chemical equation. As compare to the reactants, the products are more stable molecules. For example, in the reaction between H2SO4 and Zn, these two chemicals are the reactants, while ZnSO4 and H2 are the chemical reaction products.
Zn + H2SO4 ZnSO4 + H2
(Reactants) (Products)
The matter is a material that everything is made of matter. A property that matter has is known as energy. The same quantity of matter can have a diverse quantity of energy. Both energy and matter are identical. For example, if we add some energy into an ice cube, it will turn into liquid. After that, if we add more energy, liquid will turns into steam.
This question is for the quickest only first to name all Bnha character I'll give brainlest
Answer:
Characters
Izuku Midoriya
Katsuki Bakugou
Shigaraki Tomura
Ochako Uraraka
Shouto Todoroki
Momo Yaoyorozu
Tsuyu Asui
Tenya Ida
Eijirou Kirishima
All Might
Eraserhead
Mina Ashido
Hanta Sero
Denki Kaminari
Kyouka Jirou
Minoru Mineta
Fumikage Tokoyami
Dabi
Himiko Toga
Mezou Shouji
Twice
Rikidou Satou
Present Mic
Endeavor
Yuuga Aoyama
Kouji Kouda
Mashirao Ojiro
Black Mist
Spinner
Cementoss
Explanation:
Answer:
Izuku Midoriya
Katsuki Bakugou
Shigaraki Tomura
Ochako Uraraka
Shouto Todoroki
Momo Yaoyorozu
Tsuyu AsuiEraserhead
Mina Ashido
Hanta Sero
Denki Kaminari
Tenya Ida
Eijirou Kirishima
All Might
Minoru Mineta
Fumikage Tokoyami
Dabi
Himiko Toga
Present Mic
Hawks
Endeavor
Explanation:
these are the only ones ik
prepare a question aire to know about interdependence between the biotic and abiotic component
Answer: The biotic components of the environment are the living which beings that interact with the abiotic component of the environment. Abiotic components are non-living like air, water, soil, atmosphere, and others. The biotic components require abiotic components for their survival and the abiotic components get recycled due to the utilization by the living beings.
Explanation:
Questionnaire that can be related with the interdependence of the biotic and abiotic component:
1. How abiotic components are related to biotic components?
2. How abiotic components affect the functioning and survival of the biotic components?
3. What will be the impact on biotic components if all the abiotic factors are removed from their surrounding environment?
4. How water cycle gets disturbed due to deforestation?
5. How carbon cycle gets affected by the deforestation and pollution increases in the region of deforestation?
pls help. its for bio. giving 15 points
Answer:
chromosomal rearrangement
When Nepal clear-cut its mountainous forests, it created environmental disasters in other countries. Which of the following is not one of the created disasters?
A)
destabilized soil leading to landslides
B)
increased sediment load in rivers and streams
C)
flooding conditions downstream
D)
local farmers suffering from increased crop pests
Answer:
D
Explanation:
Got it right
I’ll mark brainliest if right
Answer:
b should be the correct answer
Explanation:
Answer:
i belive it is the second one TT and tt
Explanation:
i used the punnint sqaure thingy to help
Identify the muscle marked by the star (*): *
Answer:
Deltoid is a large triangular muscle that covers the glenohumeral joint, where your upper arm inserts into your shoulder socket. Pectoralis major is a large, fan-shaped muscle stretching from your collarbone to mid-chest.
Explanation:
Which of these is a way that biostimulation can be used?
I need These last answers
Answer:
67. Obligate anaerobes
68. Aerotolerant anaerobes
69. pH
70 media nutrient density
71. agar concentration
72. extremophiles
Explanation:
Anaerobes are microorganisms which do not require oxygen for their metabolic activities. The types of anaerobes based on metabolism are: obligate anaerobes; facultative anaerobes ; and aerotolerant anaerobes.
Some bacteria are anaerobes.
67. Obligate anaerobes do not require oxygen at all for their metabolism. They die in the presence of oxygen.
68. Aerotolerant anaerobes do not require oxygen as well but can also tolerate oxygen. they are unaffected by the presence or absence of oxygen
69. The pH of the medium affects the growth of bacteria. When pH becomes too low or too high, bacteria colonies begin to die.
70. when the nutrient concentration is high, growth rate of bacteria colony increases, but when it is low, bacteria colony growth decreases.
71. agar concentration limits the growth of bacteria colony. When the agar is very concentrated, that is the medium is hard, the bacteria colony is limited in their ability to move and vice versa.
72. Extremophiles is the name given to archaea that thrive in extreme conditions of temperature and pH. For example, the archaeal Methanopyrus kandleri strain 116 grows at 122 °C while the genus Picrophilus e.g., Picrophilus torridus has the ability to grow at a pH of 0.06.
The polled (hornless) condition (P) is dominant over horned (p). A certain polled bull is crossed to 3 cows.
1. With cow A, which is horned, a polled cow is produced;
2. With cow B, also horned, a horned cow is produced;
3. with cow C, with is polled, horned cow is produced.
What are the genotypes of the three calves and the four parents?
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
is Professional athletic ability inherited or acquired?
O Inherited
O Acquired
2. is color blindness inherited or acquired
A. inherited
B. Acquired
Answer:
1. Professional athletic ability is acquired
2. A
Explanation:
1. You would need to work to get to be athletic and that is not inherited
2. There is a certified gene that causes colorblindness in humans
Which of the following is not a reason why there has there been so much attention given to saving tropical rainforests?
A)
great species diversity and habitat
B)
livelihood for human inhabitants
C)
vacation possibilities
D)
the possibility of finding new drugs
Answer:
C.) vacation possibilities
Explanation:
got it right on edge 2021
Why are urine samples kept in a refrigerator before testing?
Answer:
Urine refrigeration preservation maintains the sample in the ACS chemical analysis, cellularity and bacteriuria
Explanation:
Tests with high diagnosis and prognostic importance in clinical practice include urinary irregular constituents and sediment (ACS). If it is not possible to analyze ACS within two hours of processing, the sample must be retained to prevent pre-analytical interferences. Cooling is due to its economic productivity the most commonly used technique. In comparison, relative to chemical preservation, it poses fewer discomforts.
A scientist wants to monitor the amount of acid
precipitation falling into a watershed.
Which tool would be the best Tor the scientist to use?
O A. pH meter
O B. Dissolved oxygen sensor
O C. Satellite images
O D. Bioindicators
Answer:
A. pH meter
Explanation:
This is because a pH meter measures the acidity of water.
Answer:pH meter
Explanation:
What are the conditions necessary for an annular solar eclipse?
A. Moon in perigee orbit; Moon moves a direct line between Sun and Earth; Moon in full moon phase.
B. Moon in perigee orbit; Moon moves a direct line between Sun and Earth; Moon in new moon phase.
C. Moon in apogee orbit; Moon moves a direct line between Sun and Earth; Moon in new moon phase.
D. Moon in perigee orbit; Earth a direct line between Sun and Moon; Moon in full moon phase.
Answer:
B
Explanation:
An annular eclipse occurs when the Sun and Moon are exactly in line with the Earth, but the apparent size of the Moon is smaller than that of the Sun. Hence the Sun appears as a very bright ring, or annulus, surrounding the dark disk of the Moon.
Answer:
B
Explanation:
In science, theories____?
Answer:
have limited explanatory power
activity 2
Label the parts of the female reproductive system
Answer:
See explanation
Explanation:
The female reproductive system is composed of internal and external sex organs. These organs are immature at birth but develops during puberty and enable the production of gametes or sex cells, and are also equipped with structures to carry a foetus during pregnancy.
The exterior of the female reproductive organ consists of the vagina and its associated structures. The vagina now leads to other internal structures in the female reproductive system such as uterus, fallopian tubes, cervix, and ovary.
An image of the full anatomy of the female reproductive system is shown in the image attached to this answer.
Image credit: topperlearning
In sweet pea plants, purple flower color is dominant over red flower color and long pollen grain shape is dominant over round pollen grain shape. Two sweet pea plants that we heterozygous for both flower color and pollen grain shape are crossed with one another. A geneticistis surprised to observe that there are fewer round purple offspring and long red offspring than were predicted by the 9:3:3:1 expected phenotypie ratio Which of the following statements provides the most reasonable prediction to account for the deviation from the expected results?
A) in sweet pea plants, the gene for flower color and the gene for pollen grain shape are genetically linked
B) In sweet pea plants the genes for flower color and for pollen grain shape both exhibit codominance
C) Several mutations occurred spontaneously producing a deviation from the expected phenotypic ratio of the offspring
D) The genes for flower color and pollen grain shape are inherited independently because of the law of independent assortment
Answer:
The correct answer is - option A) in sweet pea plants, the gene for flower color and the gene for pollen grain shape are genetically linked.
Explanation:
In this given case the result of phenotypes are not as expected and does not follow the law of independent assortment presented by Mendel. It appears to be the case of genetic linkage as it is not following the mendelian law by producing fewer round purple offspring and long red offspring which do not satisfy the expected mendelian ratio of 9:3:3:1. Mutation can lead to failure in producing proteins but could not affect the phenotypic ratio of the plant.
Thus, the correct answer is - option A.
Medel was the Father of Genetics, who gave the laws on independent assortment, dominance, and segregation of the genes.
However, there are some exception that violates these laws, such as genetic linkage is one of the exceptions that violates the law of independent assortment.
The correct answer is:
Option A. in sweet pea plants, the gene for flower color and the gene for pollen grain shape are genetically linked
In the given data, the results can be interpreted as:
The Law of independent assortment states that the two or more alleles of different genes are assorted independently. In the given example, the genetic linkage occurs, which does not follow the ratio of 9:3:3:1. The genetic linkage does not follow the law of independent assortment, which results in fewer purple offspring.Thus, mutation can cause the failure of Mendel laws and can affect the phenotypic traits of an organism.
Therefore, Option A is correct.
To know more about genetic linkages, refer to the following link:
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I. Tick he correct answer.
1. Linen is obtained from.
a. Jute plant b. cotton plant c. flax plant d. hemp plant
Answer:
c. Flax plant is the answer