Question 1 of 10
Due to an unusually high concentration of particles inside the cell, the
membrane starts to expand and burst. Which problem is the cell most likely
having?
A. The cell is unable to produce water molecules inside the cell.
B. The cell is unable get more water into the cell.
C. The cell is unable to build more protein molecules.
O D. The cell is unable to maintain a stable internal environment.
SUBMIT
Answer:
D. the cell burst because there was too much water in the cell and it wasn't able to maintain a safe pressure
Immunological memory accounts for: Group of answer choices the observation that some strains of the pathogen that causes dengue fever cause more severe disease than others the ancient observation that someone who had recovered from the plague could safely care for those newly diseased the human body's ability to distinguish self from non-self the ability of a helper T cell to signal B cells via cytokines
Answer:
The correct answer is - the ancient observation that someone who had recovered from the plague could safely care for those newly diseased.
Explanation:
Immunological memory is the ability of the body to recognize or identify and kill or remove the antigen, very quickly and faster, the body has previously encountered and developed an immunological response.
These memories are developed due to memory B cells or, memory CD8+ T cells and memory CD4+ cells developed by the first-time immune response. If someone who had recovered from the plague must have developed memory cells for the antigen and safer than those newly diseased.
Woolly mammoths became extinct thousands of years ago, while other species of mammals that existed at that time still exist today. The woolly mammoths became extinct, unlike the other species, because the woolly mammoths *
1 point
produced offspring that all had identical inheritable characteristics
faced a struggle for survival
learned to migrate to new environments
had certain inheritable traits that enabled them to survive
Answer:
had certain inheritable traits that enabled them to survive
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What are the consequences of populations that are getting smaller and are
unable to recover?
Answer:
The government wants to maintain the liveability of areas where the population is shrinking or where decline is forecast. The provincial and ...
URGENT!!!
There is a population of one horned horses in Pangea, and the original
population is 1000 individuals. If their birth rate is 10/1000 and their
death rate is 50/1000, there is an immgration rate of 10 per year from
Islandea, and an emigration rate of 20 per year to Mystique Island.
How long until the populaiton goes extinct? years
(Hint - divide the original population by the rate of change)
Answer:
i need the same thing
Explanation:
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Which of the following is an example of the bottleneck effect?
A. A severe flood kills 98% of a successful cricket population leaving only a very small percentage to rebuild the population.
B. Female peacocks only select males with the most impressive plumes.
C. White peppered mothers are favored and black moths are selected aginst.
D. Seagulls easily move between two different island populations.
E. A small group of frogs moves to an open pond in another ecosystem to start a new population.
Answer:
A. A severe flood kills 98% of a successful cricket population leaving only a very small percentage to rebuild the population.
Explanation:
A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts or human activities such as specicide and human population planning.
Question 3 (1 point)
Bacteria populations display genetic variation such as antibiotic resistance due to
mutation. Which is the likely source of mutation?
A.Because bacteria reproduce sexually, their mutations would most likely arise from
errors in crossing over during meiosis.
B.Because bacteria reproduce asexually, their mutations would most likely be a
replication error and improper proofreading.
C.Because bacteria reproduce sexually, their mutations would most likely arise from
an environmental factor such as prolonged exposure to UV radiation.
D.Because bacteria reproduce asexually, their mutations would most likely arise
from an environmental factor such as prolonged exposure to extreme
temperatures.
Answer:
b. option Is the correct answer right
A cylindrical tin full of engine oil has a diameter of 12cm and a height of 14cm.The oil is poured into a rectangular tin 16cm long and 11cm wide. What is the depth of the oil in the tin?
Answer:
Depth = 9 cm
Explanation:
First, calculate the volume of the cylindrical tin.
Mathematically, that would be the following:
[tex]V = \pi * r^{2} * h[/tex]
Now, r = d/2 = 12/2 = 6 cm
h = 9 cm
Therefore, the volume will be:
V = 22/7 * 14 * 6^2 =1,584 cm^3
Now, to find the the depth of the tin, we have to realize that the content of the cylinder should fill in the tin to a particular height.
As we don't have the height of the tin so let's suppose it x, now it means that
l * b * h = 16 * 11 * x = 176x
Therefore, the depth would be:
176x = 1584
x = 1584 / 176 = 9 cm
An organism made up of many cells is called...
A. unicellular
B. multicellular
Answer:
B. multicellular
Explanation:
An organism made up of many cells is known as the multicellular organism.
Un organismo que solo come plantas es un (a)
Answer:
Herbívoros
Explanation:
Son animales que se alimentan exclusivamente de plantas, pastos, hierbas y vegetales en general. Hay muchos herbívoros que comen huevos y a veces otras proteínas provenientes de animales. Ejemplos de herbívoros: caballo.
Herbivores: They are animals that eat plants,grasses,herbs and vegetables,.Examples of herbivores: cows, deer, or rabbits.
what type of gas is released in landfills
Which structure is found in the cytoplasm of
a typical plant cell?
A.vacuole
B. cell wall
C.chloroplast
D.cell membrane
Answer:
Explanation:
D
The structure that is found in the cytoplasm of plant cell is vacuole. The correct option is A.
What is vacuole?A vacuole is a cell organelle that is membrane-bound. Vacuoles are relatively tiny in animal cells and help to sequester waste material.
Vacuoles in plant cells aid in keeping water balance. A single vacuole can sometimes take up the majority of the interior space of a plant cell.
Within the cytoplasm of plant cells, there are also large, fluid-filled vesicles known as vacuoles.
Vacuoles typically make up about 30% of the volume of a cell, but they can fill up to 90% of the intracellular compartment.
Vacuoles are used by plant cells to regulate their size as well as turgor pressure.
Vacuole is a structure found within the cytoplasm of plant cells.
Thus, the correct option is A.
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long necked giraffes are dominant to short necks , the giraffe is heterozygous
what is his genotype?
what is his phenotype?
let's say were representing neck length with L,
the genotype of a heterozygous giraffe would be Ll
the phenotype, or physical appearance would be long neck
Living organisms must be able to obtain materials, change the materials into new forms, remove poisons, and move needed material from one place to another. Many of these activities directly require
Answer:
These activities require energy released from the ATP.
Explanation:
What would you expect to occur if you were to repeatedly lift 25 pounds over your head for 1 minute, rest for 1 minute, and then repeat the exercise?
Refer to the following information to answer the questions below. A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was 6 feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. They have a daughter who is a dwarf with normal color vision. What is the probability that she is heterozygous for both genes
Answer:
Considering the whole progeny ⇒ the probability of having a girl heterozygous for both genes is 4/16 = 1/4 Considering only girls ⇒ the probability of having a girl heterozygous for both genes is 4/8 = 1/2Considering only dwarf girls with normal color vision ⇒ the probability of having a girl heterozygous for both genes is 4/4 = 1Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Question is on the image
Answer:
Skates have whip-like and flat pectoral fins.
Explanation:
The tails of Ray and Skates are different from other fishes because Ray and Skates have whip-like tails that helps their kite shaped body in movement from one place to another. Both Skates and rays have pectoral fins that are flat and expanded, as well as fused to the head of both organism while on the other hand, fishes have different shape of pectoral fins that are not flat which helps to change the direction of the fish during its movement..
what do you mean by photo synthesis?
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Explanation:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.
PLEASE HELP ME WITH THIS BIO QUESTION!
Answer:
Option 1: XnY
Explanation:
X-linked recessive traits can occur in both males and females. Since its recessive it needs both XnXn in females to show up but for males who are hemizygous (XY) they only need a defective copy of Xn for the disease to show up thus option 1 is correct.
I have added a helpful illustration below where we are talking about another x-linked recessive condition in humans: hemophilia.
Answer:
X"n"YPlease leave a Thanks and 5-star rating!
which one of the following did not constitute the seven contrasting pairs studied by mendel in pea plant?
A.shape of the leaves
B.height of the plants
C.colour of the flower
D.position of the flower
Answer:
A. Shape of the leaves
Explanation:
Mendel chose seven characters of the pea plant to study.
They are:
1. Flower colour
2. Flower position
3. Stem length
4. Pod shape
5. Pod colour
6. Seed shape
7. Seed colour
Shape of leaves was not observed by Mendel.
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based on the graph below, from 1900 to 2000, humas have been experiencing what type of population growth?
A) Stagant
B) Logistic
C) Continuous
D) Exponential
Answer:
Exponential
Explanation:
reference the shape of the graph
From the bar graph generated in the virtual lab (see below), how do the dewlap colors of the
two species compare?
Answer:
What bar graph? I don't see anything
Explanation:
Cells with a full set of chromosomes are referred to as diploid or 2n, whereas cells with half the chromosomes are haploid or n. At which stage(s) of meiosis I are the cells diploid and at which stage(s) are they haploid
Answer:
Diploid → Prophase, metaphase, and anaphaseHaploid → TelophaseExplanation:
During prophase I, chromosomes get condensed. Each of the chromosomes gets in pair with its homologous one. They do so to make the crossing-over possible, a stage where they interchange their parts → 2n
During metaphase I, each of the homologous pairs is driven to the equatorial plane, where they randomly line up → 2n
During anaphase I, occurs the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells. There are two alternatives per homologous pair → 2n
In telophase I, half of the chromosomes are already in one of the poles, while the other half is on the other pole. Each group of chromosomes has now half the number of the original cell. The nuclear membrane forms again in each pole → n
Finally, occurs cytokinesis, which involves the invagination of the cell membrane and cytoplasmic division.
The two new cells are ready for meiosis II.
Mitosis and Meiosis are the two types of cell division, in which the genetic material is replicated and transferred to the daughter cells.
The stages of meiosis in which chromosomes are diploid are prophase, metaphase, and anaphase. The haploid chromosomes are observed in telophase.
Meiosis is a reduction division in which genetic material is halved, such that a reduction in which diploid parent cells give rise to haploid daughter cells.
The stages of meiosis at which chromosomes are diploid and haploid are:
1. Prophase I is the first phase of meiosis I. The chromosomes are condensed and pair with the homologous chromosomes.
2. Metaphase I is characterized by the homologous pairs aligning at the equatorial plane.
3. Anaphase I is the independent separation of chromosomes, which migrate to opposite poles.
4. Telophase I is represented by the separation of chromosomes having a haploid number of chromosomes, which are now segregated into daughter cells.
Therefore, telophase I am the phase in which chromosomes are present in haploid numbers.
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2. Which of the following best describes the genetic material a person receives from his or her father?
- 22 pairs of homologous chromosomes and an X and Y chromosome
- 22 haploid cells and an X or Y chromosome
- 23 diploid cells and an X and Y chromosome
- 22 autosomes and an X or Y chromosome
Answer:
22 autsomes and an X or y chromosome
Explanation:
Humans have 46 chromosomes. 23 from the mother and 23 from the father. The father has x and y chromosome. While the mother has two x chromosomes. 22 chromosomes each are given from both parents And the other chromosome (the 23rd) are the chromosomes for sex genes. Autosomes are all chromosomes that are not sex chromosomes. Therefore 22 autosomes are given from each parent. With reference to this questions 22 autsomes and one x or y chromosome will be given from the father.
HELP When dissolved in water, BLANK
produce solutions of ions.
1.ions
2. electrolytes
3. nonpolar compounds
4. nonelectrolytes
Answer: what are the choices
Explanation: hi
When dissolved in water, electrolytes produce solutions of ions. The correct option is 2.
What are electrolytes?When electrolytes are dissolved in water or other solvents, they produce ion solutions that conduct electricity.
These ions, which can be positively or negatively charged (cations or anions), form when the electrolyte dissociates into its constituent atoms or molecules in the presence of a solvent.
Electrolytes include ions such as sodium, potassium, calcium, magnesium, chloride, bicarbonate, and phosphate.
These electrolytes are important in many physiological processes in the body, including fluid balance, nerve impulse transmission, and muscle function.
Food and drink, supplements, and intravenous fluids are all sources of electrolytes.
Thus, the correct option is 2.
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Is the following chemical equation balanced?
2Li + 2H2O → H2 + 2LIOH
Why or why not?
identify and tick on the aromatic medicinal herb.
A) Aloevera
B) Neem
C) Holy basil
D) Harro
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Answer:
agitated option is correct
Explanation:
because tectonic plates
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State how the TR4 fungus threatens homeostasis within the banana plant
Answer: The Panama illness is a contagious illness that TR4, or Tropical Race 4, is a Fusarium wilt strain that kills banana plants. According to the ICA, the fungus “forms resistant structures that allow it to persist for more than 30 years,” making it tough to confine.
Explanation:
knowledge!
Blood leaving the right ventricle will move through pulmonary arteries, then 1 point
to the lungs for gas exchange, and then back to the left atrium. Which
blood vessel was omitted?
superior vena cava
The blood vessel that is omitted in this given situation is the superior vena cava.
What is the function of superior vena cava?The function of the superior vena cava is to carry the oxygen-poor blood from various parts of the upper body like the head, arm, chest, neck, etc.
In the process of blood migration from the heart to the lungs and then from the lungs back to the heart is carried out by pulmonary arteries.
Therefore, in this process superior vena cava is not involved.
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