Answer:
B
Explanation:
A soursop belongs to the fruit-bearing trees
Fill in the blanks :-The electric charge generated by __________ is called frictional electricity.
Answer:
The electric charge generated by rubbing two suitable bodies and the transfer of electrons from one body to other
is called frictional electricity.
Sometimes, you can look at a baby and say things like, “She has her mother’s eyes and her father’s nose.” Why is this only possible with organisms that reproduce sexually?
Answer:
Because through fertilization, we have the union of half of the paternal and maternal patrimony. In asexual reproduction, on the other hand, the child organisms will be the same as the organism that generated them
Answer:
what she said or he
Explanation:
Sickle cell anemia (SCA) is a human genetic disorder known to be caused by a recessive allele. A couple plans to marry and wants to know the probability that they will have an affected child.
In the following scenarios, use your knowledge of Mendelian inheritance to give the families the probabilities of having a child with SCA.
The man and woman do not have SCA. However, each has one parent with the disorder.
The man is affected by the disorder.
The woman has no family history of SCA.
Answer:
25% probability of the child to be affected. 0% chances to be affected.Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
The probability of having a child having sickle cell anemia can be obtained form Mendelian genetics.
Sickle cell anemia (SCA) is a human genetic disorder that causes the red blood cells to be sickle shaped leading to the clotting of blood in the sufferers and frequent health crisis.
If one parents do not have the disorder but each has one parent that has the disorder, then it follows that each parent has the recessive allele and there is a 25% percent chance that their child could have the disorder.
If the man is affected by the disorder and the woman has no family history of the disorder, then there is a zero percent chance of having a child with the disorder.
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Order these to fastest to slowest in heating.
Rock, Water, Sand.
Answer:
Water, Sand, Rock
Explanation:
All of the following is correct about decomposers except *
decomposers help complete cycles of matter in all ecosystems.
decomposers release the nutrients in remains and wastes.
decomposers use cellular respiration to get energy from the waste and dead tissues they consume.
decomposers use cellular respiration to get energy from the organisms they consume.
Answer:
C
Explanation:
cellular respiration is when cells are restores so this is incorrect
How can mutations be harmful?
Answer:
It can be harmful in many ways
Explanation:
When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder. In some cases, gene mutations are so severe that they prevent an embryo from surviving until birth.
Answer:
Mutations could be harmful if they change the codes for protein synthesis in such a way that a particular protein will not be able to conduct its routine function and will cause ailment. However not all mutations are harmful, there are very few number of mutations that actually can change the codes for a better functioning protein.
Explanation:
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What are the pistillate and staminate
of the wild rice plant?
Answer:
The lower branches of the panicle bear only staminate (“male”) flowers, while the upper, more erect branches bear only pistillate (“female”) flowers, and of course it's these pistillate flowers from which the grains will develop
Explanation:
Which of the following scientists influenced Darwin as he developed his ideas about evolution? Choose all that apply.
A. Lyell.
B.Malthus.
C.Mendel.
D. Schwann.
Choose all that apply
Lyell and Malthus influenced Darwin as he developed his ideas about evolution
Darwin believed there would have been plenty of time for evolution to occur. Darwin didn’t develop his theory completely on his own. He was influenced by the ideas of earlier thinkers.
Some of the early thinkers include Jean Baptiste Lamarck (idea of the inheritance of acquired characteristics), Charles Lyell ( Principles of Geology), Thomas Malthus (on population).
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i. Identify an environmental problem associated with large-scale intensive agriculture on soil.
Intensive agriculture is resulting in the loss of ecosystem and is contributing to global warming.
• An agricultural mechanization and intensification system, whose main objective is to increase the productivity from the accessible land via several means like heavy use of chemical fertilizers and pesticides is known as intensive agriculture.
• The intensive agriculture is generally aimed to feed large population of humans, however, the method has contributed as one of the biggest threat to global environment, as it is resulting in the loss of ecosystem and global warming.
• It is accountable for the 80 percent of the tropical deforestation and emergence of novel parasites and reemergence of the parasites, which were under control at one time.
• The intensive farming hampers the beneficial plants and insects, and depletes and degrades the soil it relies upon.
• It is resulting in soil erosion and is resulting in the genetic erosion of the livestock species and crops around the globe.
Thus, intensive farming in order to feed large populations is eradicating the world agriculture slowly and gradually.
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A number of studies are carried out in order to verify if there is a relation between the death rate by cardiac diseases ánd the cholesterol level in the blood.The results are shoen in the adjacent graph..
1) explain the relation between the level of blood cholesterol and the risk of cardiac accident
2) firmulate the hypothesis tested in this study
3) what do you conclude concerning the formulated hypothesis?
Answer:
The correct answer is :
1. increase in cholesterol level leads to more death due to cardiac disease.
2. Hypothesis: "if the cholesterol level is high in an individual, then the risk of death due to cardiac disease is high"
3. Everyone should limit or control their cholesterol level to avoid cardiac disease or it might be lethal.
Explanation:
In this graph, it is represented that there is an increase in the deaths due to cardiac disease with the increase in the cholesterol in the body. The death increase slowly up to 2.5 gL and after that, there is a huge spike in death, which explains that the higher the cholesterol level higher the chances or risk of death due to cardiac disease.
Hypothesis: "if the cholesterol level is high in an individual, then the risk of death due to cardiac disease is high"
On the basis of this one should control its body cholesterol to avoid the chances of cardiac disease as it may lead to death.
A 44 year old man was admitted to the hospital following a 2 week history of low grade fever, malaise, and anorexia. Examination of a Giemsa stained blood film revealed many intraerythrocytic parasites. Further history revealed frequent camping trips near Martha's Vineyard and Nantucket Island, but no travel outside the continental United States. This parasite could easily be confused with:_________.
a. Babesia microti
b. Leishmania donovani
c. Plasmodium ovale
d. Toxoplasma gondii
e. none of these
Answer: OPTION C (Plasmodium ovale)
Explanation: The symptoms of the infection is also seen in the listed intraerythrocytic protozoans in the options. However, the travel history of the man establishes that the man wasn't exposed to an intraerythrocytic protozoans which isn't endemic in the United States, and considering the man's trip around vineyard and island which can serve as breeding site of mosquitoes (vector of Plasmodium spp) makes this parasite easily confused with Plasmodium ovale.
Which characteristic can be used to determine if an organism is living?
A- size of the organism
B- ability to breathe oxygen
C- ability to respond to environmental changes
D- ability to move at various speeds
Answer:
C
Explanation:
not all living things breathe oxygen, move, and are not all the same size, the only answer that makes sense is responding to environmental changes
There are some exceptions to how the genetic code is read in organisms. Which organelle found in
vertebrates reads some codons differently from the rest of the cell?
O vacuole
O flagellum
O membrane
O mitochondrion
Answer:
mitochondrion
Explanation:
After determining the question or problem to be answered you should
A- construst a hypothesis
B- do background research
C- communicate the results
D- collect data
Need help with this
MATCHING - CULTURING TECHNIQUES
Agar Incubator
Media (medium)
Colony Inoculation
Mixed culture
Petri dish
Pure culture
1
Culture plate used to grow microorganisms
2
Derivative of seaweed; dissolves in hot water and
solidifies in cooling; substance on which bacteria grow
Food source for bacteria
3
4.
5
Transfer of microorganism to sterile quantity of
nutrients
Thermostatically controlled chamber which maintains
media at constant optimal temperature
Microbiological habitat that possesses two or more
types of organisms
Collection of one specific type of microorganism
6
7
8
Large cluster of microorganism visible to the naked
eye
Answer:
1 is petri dish and 3 is agar
The process in which the cultures of the world slowly become more and more alike, merging into
one global culture is called
Answer: Acculturation.
Explanation: Acculturation is a process of social, psychological, and cultural change that stems from the balancing of two cultures while adapting to the prevailing culture of the society.
8) The proper technique for “streaking for isolation” on an agar plate Creates ___ quadrants.
A) 1
B) 2
C) 3
D) 4
Answer:
4 quadrants are created to pick up or isolate pure colonies of microbes.
HELP BRAINLIEST! 25 POINTS
Humans take longer to change the earth's surface than plants take.
True
False
Answer:
true .......... hopefully
Answer:
False
Explanation:
Humans have technology and alot of other stuff while plants are only have natural resources
facts about nitrogen
Answer:
Nitrogen is the chemical element with the symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. Although Carl Wilhelm Scheele and Henry Cavendish had independently done so at about the same time, Rutherford is generally accorded the credit because his work was published first. The name nitrogène was suggested by French chemist Jean-Antoine-Claude Chaptal in 1790 when it was found that nitrogen was present in nitric acid and nitrates. Antoine Lavoisier suggested instead the name azote, from the Greek"no life", as it is an asphyxiant gas; this name is instead used in many languages, such as French, Italian, Russian, Romanian, Portuguese and Turkish, and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds.
Explanation:
8. Describe sexual selection. How can it lead to evolution?
Answer:How does sexual selection affect evolution?
Explanation:
Sexual selection, theory in postulating that the evolution of certain conspicuous physical traits—such as pronounced coloration, increased size, or striking adornments—in animals may grant the possessors of these traits greater success in obtaining mates.
Each kidney contains more than 1 million filtering structions called nephrons. The nephron is made up of cells that work together. Based on the information, which statement is true?
A. The nephron can be defined as an organ.
B. The kidney can be defined as an organ system.
C. The nephron can be defined as in organ system.
D. The nephron can be defined as a tissue.
Answer:
letra c
Explanation:
What does cell theory refer to
Answer:
Cell theory refers to the idea that cells are the basic unit of structure in every living thing. Development of this theory during the mid 17th century was made possible by advances in microscopy. This theory is one of the foundations of biology.
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A heterozygous female with long whiskers mates with a heterozygous male with long
whiskers... W=long whiskers w=short whiskers
What is the PHENOTYPIC RATIO of the offsprings?
Answer:
3 long whiskers: 1 short whiskers
Explanation:
This question involves a single gene coding for whiskers length in a certain animal. The allele for long whiskers (W) is dominant over the allele for short whiskers (w). This means that a heterozygous individual (Ww) will possess a long whisker.
According to this question, a heterozygous female with long whiskers (Ww) mates with a heterozygous male with long whiskers (Ww). The proportion of offsprings that will be produced from this cross (see punnet square) is as follows:
WW, Ww, Ww, ww
WW, Ww, Ww offsprings will possess a long whisker while 'ww' offspring will possess a short whisker. Hence, the phenotypic ratio will be 3 long whiskers: 1 short whiskers
What does measles cause by
Answer:Measles is a highly contagious virus that lives in the nose and throat mucus of an infected person. It can spread to others through coughing and sneezing. If other people breathe the contaminated air or touch the infected surface, then touch their eyes, noses, or mouths, they can become infected.Measles is caused by a virus in the paramyxovirus family and it is normally passed through direct contact and through the air. The virus infects the respiratory tract, then spreads throughout the body. Measles is a human disease and is not known to occur in animals.
It usually begins as flat red spots that appear on the face at the hairline and spread downward to the neck, trunk, arms, legs, and feet. Small raised bumps may also appear on top of the flat red spots. The spots may become joined together as they spread from the head to the rest of the body.
Explanation:
Answer: GoodMorning: ) ✨ Measles is a highly contagious virus that lives in the nose and throat mucus of an infected person. It can spread to others through coughing and sneezing. If other people breathe the contaminated air or touch the infected surface, then touch their eyes, noses, or mouths, they can become infected.Measles is caused by a virus in the paramyxovirus family and it is normally passed through direct contact and through the air. The virus infects the respiratory tract, then spreads throughout the body. Measles is a human disease and is not known to occur in animals.
It usually begins as flat red spots that appear on the face at the hairline and spread downward to the neck, trunk, arms, legs, and feet. Small raised bumps may also appear on top of the flat red spots. The spots may become joined together as they spread from the head to the rest of the body.
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plzz help me to do this please
Answer:
idek
Explanation:
during what part of the mitosis process does the dna replicate
Answer:
In the interphase
Explanation:
Bacteria that can live in extreme environments.
thermophiles
halophiles
methanogen
all of the above
Which type of bond connects the amino acids?
4. Do you think that adding more enzymes to a solution would increase the rate of reaction? Why or why not?
Answer:
By increasing the enzyme concentration, the maximum reaction rate greatly increases. Conclusions: The rate of a chemical reaction increases as the substrate concentration increases. Enzymes can greatly speed up the rate of a reaction.
Refer to the food web above to answer the following: hunting has significantly reduced the snake population. Explain at least two possible effects this will have on the ecosystem.
Answer:
I would need to see the food web to provide accurate answers; but,
mouse, rat, small animals, herbivores population would increase.
Anything that the snake eats would increase in population.
Explanation:
Anything that eats the snake would decrease.
The reduction of the snake population due to hunting in the food web can result in an increase in the population of prey species and a disruption in the energy flow of the ecosystem.
Explain how an increase in the population of prey species can reduce snake population?Snakes are predators and they play an important role in regulating the population of their prey species, such as rodents and insects. With the reduction in the snake population, the number of prey species may increase, leading to a possible imbalance in the ecosystem.
This can lead to an increase in the population of other predators or a decrease in the population of prey species that are lower in the food web.
Disruption in energy flow: Snakes occupy an important trophic level in the food web, and their removal can disrupt the flow of energy and nutrients in the ecosystem.
This can lead to a cascading effect on other species in the food web, as their food sources and predators may be affected. For example, if the snake population declines, the population of the animals they prey on may increase, leading to overgrazing or competition for resources.
Additionally, if snakes are a food source for other predators, the decline in the snake population can affect the survival and reproduction of these predators.
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