Answers
Answer:
protons is 7 neutrons should be 9
Explanation:
protons number is its atomic number
the number of protons and the number of neutrons determine an element's mass number.
Related Questions
Check each of the following statements that are true with regard to Griffith’s experiments.a. ______ Griffith discovered transformation in bacteria.b. ______ Mice injected with smooth bacteria quickly became sick and died.c. ______ Encapsulated bacteria can become "naked" bacteria.d. ______ Bacteria that do not have capsules tend to be harmless.e. ______ Smooth bacteria develop a capsule only after exposure to the DNA of encapsulated (rough) bacteria.f. ______ Griffith’s transforming factor was the protein in the capsule.g. ______ Transformation allows bacteria to acquire new genes.h. ______ Enzymes that destroyed DNA would prevent transformation.
Answers
Answer:
The correct answer is - a, d, e, h, i.
Explanation:
Frederick Griffith performed an experiment of 1928 known as Griffith's experiment and showed that bacteria can get genetic material through a process called transformation.
The following statements are true:
Griffith found out transformation in bacteria.
Bacteria that are naked or smooth tend to be harmless.
Enzymes treated bacteria that destroyed DNA would prevent transformation.
Transformation allows bacteria to acquire new genes.
Naked or smooth bacteria can make them self encapsulated only after exposure to the DNA of encapsulated bacteria.
which organ systems work together to remove waste products from all cells of the body
Answers
Answer:
It is the respiratory system, your excretory system, and your skin that together eliminate waste products from the cells of your body!
Explanation:
Answer:
respinatory system, your excretory system, and your skin
The graphs here show the distribution of beak depths for the ground
finches on Daphne Major, an island in the Galapagos. The bird beaks were
measured over a multi-year study, including a time period before and after
a drought. The drought reduced the supply of seeds and left most of the
seeds as thick-walled nuts that survived the drought. Analyze the data and
select the claim about natural selection and genetic diversity that is
supported by the data.
Natural selection tends to reduce genetic variation, as there was a smaller distribution
of beak depths, but it tends to select for the most fit phenotypes, as there was an
increase in average beak depth after the drought.
Natural selection tends to increase genetic variation, as there were more ground
finches after the drought, and it tends to select for the most fit phenotypes, as there
was an increase in average beak depth after the drought.
Natural selection tends to reduce genetic variation, as there was a smaller distribution
of beak depths, but it tends to select against the most fit phenotypes, as there was an
increase in average beak depth after the drought.
Natural selection tends to increase genetic variation, as the average beak size
increased after the drought, but it tends to select against the most fit phenotypes, as
there was a decrease in population size for the finches after the drought
Answers
Answer: (A) Natural selection tend to reduce genetic variation as there was a smaller distribution of beak depths, but it tends to select for the most fit phenotypes, as there was an increase in average beak depth after the drought.
Explanation: The picture below shows proof if needed. On USATP
Natural selection tend to reduce genetic variation as a smaller allocation of beak depths, but it tends to select for the most fit phenotypes, as an increase in average beak depth after the drought.
How does natural selection affect genetic variation?Genetic variations that vary gene and protein role.
If a trait is favourable and helps the someone survive and breed, the genetic variation is more likely to be passed to the next generation.
Thus, option "A" is correct by selecting for or against a specific gene.
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Which two stages are part of the cell cycle but not part of mitosis?
Answers
Answer:
Interphase is one of the two
Explanation:
Interphase is often included in discussions of mitosis, but interphase is technically not part of mitosis
The mitotic phase and inter phase are the two primary stages of the cell cycle. The cell develops and DNA replication occurs during interphase. The duplicated DNA and cytoplasmic components are segregated and the cell splits during the mitotic phase.
What are the different phases of the cell cycle?The four stages of mitosis are prophase (sometimes known as early prophase and prometaphase), metaphase, anaphase, and telophase. The mitosis movie contains more information about these phases. In cytokinesis, the cell's cytoplasm splits in two to create two new cells.A cell cycle is the sequence of events that occur in a cell as it grows and divides. A cell spends the majority of its time in what is known as interphase, where it grows, replicates its chromosomes, and prepares for cell division. The cell then exits interphase, goes through mitosis, and divides completely. Prophase, prometaphase, metaphase, anaphase, and telophase are the stages. Cytokinesis is the final physical cell division that occurs after telophase and is thus sometimes considered a sixth mitotic phase.To learn more about phase of cell refer to:
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Which of the following explains the conservation of mass during cellular respiration? (4 points) a The total number of atoms when carbon dioxide and oxygen react stays the same when glucose and water are produced. b The total number of atoms when water and oxygen react stays the same when glucose and water are produced. c The total number of atoms when carbon dioxide and water react stays the same when glucose and oxygen are produced. d The total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced.
Answers
Answer:
D- The total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced.
Explanation:
The conservation of mass during cellular respiration can be explained by the fact that after cellular respiration which occurs due to the oxidation of glucose to produce carbon dioxide and water, the number of atoms on the right hand side (RHS) of the reaction remain same as of left hand side (LHS) of the reaction.
The balanced chemical equation is mentioned as under:
C₆H₁₂O₆ + 6 O₂ -> 6 CO₂ + 6H₂O + Energy.
(Glucose) (Oxygen) (Carbon (Water)
dioxide)
If we will see carefully, the number of atoms of each element on RHS & LHS of the equation are same i.e. there are 6 atoms of C, 18 atoms of O and 12 atoms of H on both the sides.
Freshwater plants that have adapted to very moist conditions live in which type of biome?
an estuary
coral reefs
the ocean
a wetland
Answers
Answer:
A wetland
Explanation:
All the others are salt water
Answer:
wetland
Explanation:
5 importance of animal protein in ration
Answers
Answer:
Proteins are important building blocks of animal tissues. The majority of animal tissues and organs need proteins and other elements as their building blocks. Therefore, proteins in animal nutrition are needed for the growth and regeneration of tissues.
Explanation:
Which of the following answer choices best describes the image shown above?
Choose 1 answer:
It depicts sexual reproduction occurring through the fusion of gametes, a process that leads to
genetic variation.
It depicts sexual reproduction occurring through parthenogenesis, a process that leads to genetic
variation
It depicts asexual reproduction occurring through binary fission, a process that does not lead to
genetic variation
It depicts asexual reproduction occurring through budding, a process that does not lead to genetic
variation
Answers
Answer:it depicts asexual reproduction occurring through binary fission, a process that does not lead to genetic variation
Explanation:
The choice that best describes the image shown above is it depicts asexual reproduction occurring through binary fission, a process that does not lead to genetic variation. The correct option is C.
What is asexual reproduction?Asexual reproduction is a mode of reproduction in which only one parent is needed. There are different types of asexual reproduction, like budding, vegetative reproduction, fragmentation, and binary fission.
This reproduction does not require the fusion of sperm and egg. The offspring is exactly identical to the parent. Many organisms reproduce in asexual reproduction, hydra, paramecium, starfish, etc.
Thus, the correct option is C. it depicts asexual reproduction occurring through binary fission, a process that does not lead to genetic variation.
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Birds are the main predators of these beetles; they hunt the beetles by sight and pick them off the tree bark where they feed. A logging company clears trees off an island and plants younger trees as a replacement. Trees with light bark are planted on one side of the island, and trees with dark bark are planted on the other side of the island. What do you predict would happen to the range of coloration in the population of beetles living on the light-colored trees of the island
Answers
Complete question:
1. The graph below depicts the frequency of expression of the coloration of beetles on an island:
Graph is the 1st Pic --> Attached files
Birds are the main predators of these beetles; they hunt the beetles by sight and pick them up off of the tree bark where they feed. A logging company clears the trees off of the island and plants younger trees as a replacement. Trees with light bark are planted on one side of the island and trees with dark bark are planted on the other side of the island. What do you predict would happen to the range of coloration in the populations of beetles on each side of the island?
Select TWO answers, one to represent the beetles living on the light colored trees and one to represent the beetles living on the dark colored trees. (2 points)
A. graph 2 below
B. graph 3 below
C. graph 4 below
D. graph 5 below
Answer:
B. graph 3 below
D. graph 5 below
Explanation:
The original population of beetles (Graph 1) shows that most individuals had an intermediate phenotype between dark and light color. The graph expresses its highest point in the middle of the phenotypic ax, while the curve´s tails coincide with light and dark colors.
Probably, most of the trees inhabiting the whole island had some darkish color tone, which beetles used to camouflage and avoid predation.
When the company cleared the area and reforested, they planted light trees on one half and dark trees on the other half of the island. This change in the environment modeled the beetled phenotype, together with predation pressure.
If we consider the whole original population, we should say that it went under a disruptive selection. But if we think about the sides of the island separately, we could say that the population living on each side went under directional selection. We are not thinking about the whole population of beetled inhabiting the whole island, but two groups inhabiting each side of the island.
Graph 3 represents the beetles inhabiting the part of the land with dark trees. The population went under directional selection, and most of them turned into dark-colored to camouflage with the substrate in which they live.Graph 5 represents the beetles inhabiting the other part of the land with light trees. The population went under directional selection, and most of them became light-colored to camouflage with the substrate in which they live.Which is true about the tundra biome?
a. It receives less direct sunlight than any other biome on earth.
b. It has more trees than any other biome on earth.
c. It can be found at low elevations all over the earth.
d. It has more types of plants and animals than any other biome on earth.
Answers
Answer:
It receives less direct sunlight than any other biome on earth.
Explanation:
The tundra biome is a cold, frozen landscape. This biome has a short growing season, followed by harsh conditions that the plants and animals in the region need special adaptations to survive. Tundra form in two distinct cold and dry regions.
The Tundra biome is a frozen landscape that has a dark and cold environment. It receives less sunlight compared to other biomes. Thus, option a is correct.
What are the characteristics of the Tundra biome?The Tundra biome is the biogeographical region that has the coldest atmosphere of all the other biomes and is marked by little precipitation, low temperatures, long winters, and short seasons for agricultural growth.
They are present in the Arctic circle as the temperature reaches below zero degrees celsius which can last up to ten months. It is mostly barren land and is majorly covered with willow trees, and birch trees. They receive very less amount of sunlight as they have a long winter season.
Therefore, Tundra receives less sunlight.
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What is the original biosphere, sometimes referred to as Blosphere 1?
O
a greenhouse on the Mir space station
the planet Earth
a sealed environment in Arizona
the human body
Answers
Answer:
The correct answer is - the planet Earth.
Explanation:
Biosphere 2 is the second self-sufficient biosphere that is a research center of America that is built to study, teach and research the purpose of the earth and its biosphere. It is termed biosphere 2 because the original biosphere is the primary biosphere that self-sufficient which is called biosphere 1.
Biosphere 1 is changed altered so much since it formed in various manners including the hydrosphere, atmosphere and different matter cycles.
Freshwater ecosystems can be grouped as those that are still, those that are flowing, and those that contain salt.
Answers
Answer:
true
Explanation:
What is the distinctive feature of entrepreneurship?
A.
An entrepreneur gets funds from the government.
B.
An entrepreneur raises capital from the market.
C.
An entrepreneur only invests capital in the venture and has no decision-making power.
D.
An entrepreneur enjoys all the profits and absorbs the losses.
Answers
Answer: Option D.
An entrepreneur enjoys all the profits and absorbs the losses
Explanation:
An entrepreneur is someone who set up a business and also enjoy all the profits and bear its lose. An entrepreneur is an initiator of new things and procedures. He creates a new business using his on creative ideas, innovations and the proceedings to the involved. He is the sole contributor of ideas and capital involved.
Hard corals have a symbiotic relationship with species of microalgae that give the corals their color and provide up to 95% of the corals' energy needs by photosynthesis. Corals get the rest of their food by consuming plankton. The microalgae are damaged by changes in water temperature 2-3C lasting five weeks or more, causing a phenomenon called coral bleaching. What will most likely be the result of increased global temperature on the diversity of hard coral species?
Question 1 options:
The hard corals will make all of their own food.
The rate of photosynthesis in hard corals will increase.
The number of different hard coral species will decrease.
The hard corals will migrate to warmer waters.
Answers
Answer:
The hard corals will make all of their own food
Explanation:
your welcome...
The most likely result with increased global temperature would be ; ( A )
The hard corals will make their own food
Given that the relationship between the corals and the microalgae is symbiotic and not parasitic therefore when the microalgae are damaged the hard corals will most likely look for an alternative food source in order to continue surviving since they do not rely 100% on the plankton for their food. which is The hard corals will be able to make their own food by capturing preys like critters.
Hence we can conclude that the most likely result with increased global temperature would be The hard corals will make their own food
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According to the endosymbiotic theory, why was it adaptive for the larger (host) cell to keep the engulfed cell alive, rather than digesting it as food select all that apply
Answers
Answer:
It provides ATP.
Explanation:
It is adaptive for the larger host cell to keep the engulfed cell alive, instead of digesting it as food because the engulfed cell provides energy in the form of adenosine triphosphate (ATP) to the host cell. The larger host cell is able to survive in anaerobic conditions with the help of engulfed cell alive so that's why we can conclude that the larger host cell keep the engulfed cell alive instead of killing it and used as a food source.
Please select the word from the list that best fits the definition
plants that require short nights to flower
long-day plants
gibberellins
stimulus
cytokinins
day-neutral plants
photoperiodism
short-day plants
abscisic acid
tropism auxin
photosynthesis
respiration
Answers
Answer:
long-day plants
gibberellins
stimulus
cytokinins
day-neutral plants
photoperiodism
short-day plants
abscisic acid
tropism auxin
photosynthesis
respiration
What are possible effects warming the atmosphere?
Answers
2. The diagram below represents a food web composed of producers, consumers, and
decomposers.
A
B
D
Which group would represent the decomposer organisms?
1) A
2) B
3) C
4) D
Answers
Answer:
B
Explanation:
because that is the 2nd decompers
B group would represent the decomposer organisms. Therefore, the correct option is B.
What are Decomposers?Decomposers are organisms that convert decaying organic matter into more basic components. They are an important component of the nutrition cycle because they convert complex chemical substances, such as nitrogen and carbon, into direct nutrients that can be absorbed by plants and other living things.
Some species of bacteria, fungi and insects are specialized decomposers. These organisms are essential to maintaining healthy soil because they aid in the recycling of nutrients and the breakdown of organic matter, which would otherwise build up and cause nutrient imbalances. Decomposers, which break down dead organisms and aid in the containment of pathogens, may be important in disease prevention.
Therefore, the correct option is B.
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What is the pressure of a gas if the volume is 96.2 L, the temperature is 25⁰C and there are 1.24 moles?
Answers
P(96.2 L)= (1.24 mol)(8.314)(298 K)
P = 96.2/3072.18
P = 31.93 Pa or 0.031 kPa
Which agent is most likely the cause of chemical weathering to the tombstones in the cemetery? a)acid precipitation b)oxidation c)gravity
Answers
Which of the following represents an abiotic factor?
O Bacteria
O Protist
O Plants
Wind
Answers
Answer:
Last one. Wind, because it is non-living which is basically what abiotic is.
How does Botox reduce the appearance of wrinkles?
Answers
Let us check your knowledge with the previous lesson hazard and risk.
Direction: Read the statement properly and write the correct type of hazard in
the space provided.
1. Burn out, fatigue and verbal abuse from dissatisfied clients are result from being
exposed to ______________ hazard.
2. Caregivers who are sensitive to solutions may cause skin irritation, illness or breathing
problems because of ________________ hazard.
3. _____________________is the common occurrence in the workplace. It may result to
bone dislocation, bruises or fracture.
4. Exposure to blood or bodily fluids when changing diapers, performing first aid is
_____________________hazard.
5. _____________________ occur when a caregiver’s body position and working
conditions put pressure on his/her body
Answers
Answer:
1. Phychological
2. Dermatis
3. Dislocations
4. Biohazard or Biological Hazard
5. Ergonomic hazard
Explanation:
1. Burn out, fatigue and verbal abuse from dissatisfied clients are result from being exposed to psychosocial hazard.
2. Caregivers who are sensitive to solutions may cause skin irritation, illness or breathing problems because of chemical hazard.
3. Physical hazard is the common occurrence in the workplace. It may result to bone dislocation, bruises or fracture.
4. Exposure to blood or bodily fluids when changing diapers, performing first aid is biological hazard.
5. Ergonomic hazard occur when a caregiver’s body position and working conditions put pressure on his/her body.
What do you mean by hazard?"A hazard is any source of potential damage, harm or adverse health effects on something or someone."The hazards can be categorized into 5 parts: biological, physical, chemical, psychosocial and ergonomic hazard.Biological hazards- caused due to microorganisms, body fluids, poor sanitation, etc.Physical hazard-cause due to working environment, using tools and machines, etc.Chemical hazard- caused due to chemicals.Psychosocial hazard-cause due to poor social context.Ergonomic hazard-cause due to poor working posture, stress, etc.Hence, the answers are: 1.psychosocial, 2.chemical, 3.physical, 4.biological and 5.ergonomic hazard.
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Where is the best place to live to avoid the problems caused by
climate change and why?
Answers
outside the us- Denmark because the country has continued to make strides forward, in air quality in particular. On the previous report, 78.8% of the population was exposed to unsafe levels of fine particle air pollution; now, the figure has dropped to 56.9%. Denmark tops the list of countries doing the most to protect the environment, among them having at least half its energy consumption come from renewables by 2030 and to be independent of fossil fuels by 2050.
Non vascular plants are quite commin in the forests along the coast of Norther California but are relatively rare in the ecosystems around Davis in the Central Valley. What aspects of the life cycle of these plants make it difficult for them to reproduce on our area
Answers
Answer:
The Central Valley of northern California is a region where there is little water supply, while nonvascular plants cannot efficiently store water and they have primitive traits that are dependent on water for reproduction.
Explanation:
The Central Valley of northern California is characterized to have little natural precipitation/snowmelt during the dry summer months. In addition, California's climate also has extended periods of drought. On the other hand, non-vascular plants such as mosses and liverworts, are a type of plant that lacks vascular tissues (xylem and phloem), and they also lack true roots, stems, or leaves. These plants cannot efficiently absorb and store water (which fundamental for survival), and thereby the success of these plants in establishing and reproducing in the ecosystems of the Central Valley is limited to their physiological tolerance to desiccation. Moreover, non-vascular plants may also exhibit primitive traits related to their reproductive cycle (e.g., a flagellated sperm) that are dependent on water for reproduction.
From fossil evidence, you know two species shared a common ancestor approximately 50 million years ago. In comparing a known neutral sequence between rats and mouse, you found 92 base differences in 1000bp. From this information, which of the following values is closest to what you would predict the mutation rate to be?
a. 1 x 10-9
b. 4 x 10-9
c. 2 x 10-9
d. 5 x 10-9
e. 5 x 10-8
f. 8 x 10-9
Answers
Answer:
Option c ([tex]2\times 10^{-9}[/tex]) is the correct alternative.
Explanation:
Given:
Common ancestor,
= 50 million years ago
Base differences,
= 92
Now,
The predicted mutation rate will be:
= [tex]\frac{92}{50\times 10^6\times 1000}[/tex]
= [tex]\frac{1.84}{10^9}[/tex]
= [tex]1.84\times 10^{-9}[/tex]
or,
= [tex]2\times 10^{-9}[/tex]
Thus the above solution is the right one.
Which scientist devised tests that helped confirm that bacteria and other microorganisms cause a variety of diseases?
Robert Koch
Anton van Leeuwenhoek
Louis Pasteur
Alexander Fleming
Answers
Answer:
A. Robert Koch
Explanation:
I got a 100 on the pre-test (Edgen2021)
Robert Koch made tests that helped confirm that bacteria and other microorganisms cause a variety of diseases.
Who was Robert Koch?Robert Koch was a scientist that work to identify many pathogenic microorganisms (e.g., bacteria and fungi).
Nowadays, Robert Koch is considered the father of modern bacteriology. Robert Koch identified many pathogenic microorganisms including Mycobacterium tuberculosis (tuberculosis) and Vibrio cholera (cholera).In conclusion, Robert Koch made tests that helped confirm that bacteria and other microorganisms cause a variety of diseases.
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In 1980, Mt. St. Helens erupted. The resulting lahar flowed over a wide area of the Cascade Mountains. Which of these statements DOES NOT describe the effect of the volcanic eruption?
A. It affected the living and nonliving components of the ecosystem.
B. It removed populations of mammals from the mountainside.
C. It led to succession on the mountainside.
D. It affected only nonliving components of the ecosystem.
Answers
Correct answer is C
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According to the map, which oceans surround Antarctica? From what central point do international claims originate?
Answers
Answer:
The oceans that surround it are, the atlantic ocean, the indian ocean, the pacific ocean
Explanation:
What kingdom is made of organisms that are eukaryotic, plant-like, do not move, and do not carry on photosynthesis?
Answers
Answer:
protists
Explanation:
Answer:
Protists are organisms that are part of the biological kingdom called the protista. These organisms are not plants, animals, bacteria, or fungi. Protists are a very diverse group of organisms. They are basically all the organisms that don't fit into the other groups.
Explanation: