12. Study the image of a chromosome. Which of the following statements about
the chromosome is true?*
chromosome
A. Each half of the chromosome is genetically identical.
B. Once formed, a chromosome always stays in this X shape.
C Each half of the chromosome contains genetically different material
D. The pinched middle of the chromosome is what allows it to split during mitosis.
Answer:
A. Each half of the chromosome is genetically identical.
Answer:
C
Explanation:
I would say it is C.
Each cell has 23 chromosome (46 in total). 23 is from our mother, 23 from our father. So this would mean the chromosomes are not genetically identical, hence we have variation.
Hope this helps!
Why do cells need to replicate their DNA?
Answer:
Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell. ... Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.
Explanation:
DNA is the genetic material, which is found in every living cell. The DNA is made up of a pentose sugar, nitrogenous base, and phosphate backbone.
DNA is a genetic material that transmits the information from parent cell to daughter cell using DNA replication.
DNA replication is an essential process in which the daughter cells inherit information from the parent cell.
Cell division is a process through which a DNA copies its genetic material and delivers it to the newly forming daughter cells.
The genetic information in the daughter cell must contain the same set of rules and instructions to carry out the vital processes. The information is present in the original copied form of DNA from the parent.
Thus, DNA replication is necessary for the continuity of life and similar genetic information presents the daughter cells.
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What is the promoter?
What are periods of rapid reproduction of phytoplankton ?
Describe the function of the tissue of the vascular bundle.
WILL GIVE BRAINLIEST
The vascular tissue is a type of plant tissue that serves to move dissolved nutrients throughout the body. The walls of the vascular elements have pores and holes that facilitate the movement of substances from cell to cell. The vascular tissue forms a continuous branched network in the body of the plant, connecting all its organs including roots, shoots, buds, and leaves into a single system. The conductive tissue of plants includes xylem and phloem. Xylem provides an upward flow from the root to the stem transporting water with dissolved mineral salts. Phloem provides a weaker and slower flow of water and organic substances mainly from leaves to other organs. As a result, the vascular tissues provides the transport of water, nutrients, minerals, hormones, and other substances in plants connecting all plant tissues and organs.
HOPE IT HELPS !!!! STAY BLESSED !!!!Answer:
vascular tissue includes xylem and phloem. xylem helps in transportation of water in the plant. phloem transports various proteins and nutrients required for the growth of plants.
_____________ show the evolutionary relationships of organisms, showing a common ancestor that is based on their genetic information.
Answer:
cladogram
Explanation:
built different
A brick is lifted above the ground and then dropped,
What is the main energy change while the brick is falling?
A kinetic to heat
Ο Ο Ο
B. kinetic to potential
C. gravitational potential to kinetic
D. chemical to gravitational potential
Due to climate change, places that used to be colder are now warming up, allowing new invasive species to establish themselves. What is one way that warming conditions are beneficial to invasive species?(1 point)
Warm weather allows animals to travel farther and longer because they do not need to hibernate for winter.
Warming leads to longer life spans for the animals because none die due to exposure to the cold.
There is more food and shelter available since the growing season is year round.
If the location used to be too cold for non-native species, it is now warm enough to allow them to exist.
(Q1)An introduced species is not necessarily harmful to the environment; an invasive species has a negative effect.
(Q2) the number of species in a community
(Q3) If the location used to be too cold for non-native species, it is now warm enough to allow them to exist.
(Q4) It reduces biodiversity by reducing successful mating in native species.
(Q5) Large because it has led to several significant changes, including new invasive species and loss of natives.
Explanation:
i just did the quick check
Warming conditions are beneficial to invasive species because if the location used to be too cold for non-native species, it is now warm enough to allow them to exist. Option D is correct.
What are invasive species?When species move and establish in a new area, out of their original distribution range, they might be considered exotic or invasive, according to their
• reproductive rate,
• population growth, and
• interaction with native species.
When a new species stablishes and overgrow in a new area, negatively affecting native ecosystems dinamics, they are considered invasive species.
The introduction of invasive species has ecological, economic, socio-cultural consequences.
In the new areas, these species have less environmental pressure and better conditions than in their origin area -fewer predators, more resources, better nitches-.
These factors favor their establishment because they are adapted to surviving under harder conditions.
They interact with native species by
Competing for resources such -water, place, radiation, exposure, shelter, food, etcetera-.Predating on native species, consuming a wide diversity of prey items, and in many cases, there are no native species that may prey on them.They provoke significant damages in the structure of native ecosystems, causing severe damage in endemic species.
They produce ecological imbalances in the trophic chains and the dynamics of communities. Invasive species are uncontrollable.
Areas that get warmer due to climate change provide a propicious environment for invasive species to stablish and overgrow.
Temperature is not a limmiting factor any more for these species, so they can move and stablish in these areas.
Warming conditions are beneficial to invasive species because if the location used to be too cold for non-native species, it is now warm enough to allow them to exist.
Option D is correct.
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please answer i don’t understand please answer all
Answer and i will give brainly
Answer:
Correct answer: Top Left
Use the drop-down menus to match each part of the scenario to the correct scientific practice.
Kiran records the height of each plant―those with a colored filter and those without.
Kiran explores the growth of a plant in natural light, then repeats the experiment with the same plant type but different colored filters.
Kiran turns in a written lab report to her science teacher.
Kiran wonders, “Will colored light affect the growth of a plant?”
Kiran writes in her notes that adding a colored filter over a plant affects its growth because the heights of the plants under the colored filters were less than the height of the plant with no filter.
Use the drop-down menus to match each part of the scenario to the correct scientific practice.
Kiran records the height of each plant―those with a colored filter and those without.
Kiran explores the growth of a plant in natural light, then repeats the experiment with the same plant type but different colored filters.
Kiran turns in a written lab report to her science teacher.
Kiran wonders, “Will colored light affect the growth of a plant?”
Kiran writes in her notes that adding a colored filter over a plant affects its growth because the heights of the plants under the colored filters were less than the height of the plant with no filter.
This part of the nucleus is the "noodle soup" form of DNA.
helppp
Answer:
I think it's chromosome.
Explanation:
A chromosome looks roughly like an X, but it does not maintain it's form. IT floats around and stuff. That's why I think it's chromosome.
Which of the statement about thermal pollution is not true?
a.
Its effect can be sudden or long term.
b.
It is caused by human activities and natural processes.
c.
It increases the oxygen holding capacity of water.
d.
It alters the natural conditions of aquatic habitats.
Answer: C
Explanation:
got a 90 on the quiz but correct if wrong
Answer:
It’s C. It increases the oxygen holding capacity of water
Explanation:
A, B, and D are all true
Adult stem cells found in the bone marrow produce...
red blood cells
white blood cells
platelets
all of the above
Answer:
all of the above
Explanation:
Can someone help me pleasee:(
Answer:
Add some iodine to a beaker containing the sample. If starch is present, the colour of the solution will turn blue-black.
Explanation:
What does the word "Ecological Balance" mean?
Answer:
what does it mean?????????????????
Answer:
so like the ecological balance is the equilibrium between, and harmonious coexistence of, organisms and their environment.
Explanation:
which of the following joint is the most freely movable joint in the body
Answer:
Knee joint.
Explanation:
The knee joint is a freely movable joint in the body. Usually allows a slight degree of movement.
The illustrations below show the creation of two different mixtures. Based on this information,decide which conclusion is supported by the evidence you have been given. Only Mixture A resulted in a chemical reaction.Only Mixture B resulted in a chemical reaction.Both Mixture A and Mixture B resulted in chemical reactions.Neither Mixture A nor Mixture B resulted in a chemical reaction.
Answer:
Explanation:
A restaurant makes three batches of tomato soup using the recipe shown.
Each batch contains a different amount of soup.
Drag numbers to show how much of each ingredient should be used in each batch of tomato soup.
18 of the soup is chicken stock.
14 of the soup is cream.
58 of the soup is tomato puree.
CLEAR CHEC
Iodine solution ..............in the presence of starch.
produce starch
turns off bunsen burner
turns blue black
lowers boiling point than the water
Answer:
it turns blue and black
Explanation:
sorry if im wrong...
Potential energy is energy that results from the ______ or ________ of an object.
Answer:
Gravitational potential energy
Explanation:
Gravitational energy is the an object has depend on its height and mass.....
Which of the following best describes the relationship between light intensity and photosynthetic rate?
a)As light intensity increases, the rate of photosynthesis decreases.
b)As temperature increases, photosynthetic rate also increases.
c)As light intensity decreases, the rate of photosynthesis increases.
d)As light intensity increases, the rate of photosynthesis increases
Answer:
D) As light intensity increases, the rate of photosynthesis increases
Explanation:
when light intensity increases so does the rate of photosynthesis. It is directly proportional until another factor is limiting
Delta and Alpha are the same distance from the equator, and they are both near the ocean. Using the information in the map, how does the air temperature of Delta compare to the air temperature of Alpha? Why?
The image of this question is missing, so i have attached it.
Answer:
Explained below.
Explanation:
From the image attached, we can deduce that;
- The air temperature of Delta will be warmer than Alpha.
- The reason is because the wind will push ocean water that's turning and following the coasts and thereby making energy to be transferred from the ocean to the air at Delta and also from the air to the ocean at Alpha.
Answer:
I am doing the same test as you, so it is D. warmer than Alpha. The winds push ocean water that turns and follows the coasts. A lot of energy is transferred from the ocean to the air at Delta, and only a little energy is transferred from the ocean to the air at Alpha.
Explanation:
Which question can most help a writer revise an argumentative essay?
Answer:
Do details provide support for the claim?
Explanation:
Your claim is the biggest part of your essay, it sets the tone for what is to be written and the details need to support the claim to back it up, to show the background of the claim. These details need to be precise to the claim because if not, the essay will not nor ever be near considered a good essay and that goes for all essays that have a thesis or claim in general.
AP English Language and Composition and 2007 Scoring Guidelines Question 2
In your journal, complete a PASAFE + TEAR paragraph analyzing the student writer's use of refutation to build his/her own argument.
ANSWER:
In response to the essay by Scott Russel Sanders, “the belief that movement is inherently good” (Sanders). The genre is this essay is an opinionated essay throughout the essay he haves a natural tone against Rushdie even towards the end. He claims that we should root ourselves in places rather than ideas, that we should care for the earth rather than our own selfish desires. In quoting Rushdie directly and repeating his words and syntax, Sanders not only assures the reader of his careful thoughtfulness on the issue but also states his own belief that moving does nothing to rid us of the unfortunate aspects of the humanity of which we all wish to be free. Sanders and Rushdie have agreement and disagreement quotes that they want to share with others, but maybe more to themselves. But still, there is no argument in this essay, and is still respectful. The audience is for all people, as one that we all should hold as a fundamental belief of society. How can one create a new relationship with the world when they are constantly altering their place in it? The gradual movement from agreement to complete disagreement reinforces Sander’s point and respectfully refutes Rishdie’s point consequently. Yet he is still respectful towards Rushdie and admits that even though he disagrees completely with him, Rushdie articulated his views “as eloquently as anyone” (Sanders). He finishes by asserting that we must root ourselves to a specific place in order to “pay enough head and respect to where are are” (Sanders).
In 1898 Friedrich Loeffler and Paul Frosch found evidence that the cause of the highly contagious hoof-and-mouth disease in livestock was a microscopic infectious particle. It was discovered that this particle requires a host cell to reproduce. Which pathogen is most likely responsible for causing hoof-and-mouth disease in livestock?
Answer:
Enteroviruses.
Explanation:
Enteroviruses is the pathogen that is responsible for causing hoof-and-mouth disease in livestock. Infection of this virus causes a vesicular eruption on the hands, feet, and oral mucosa in the livestock animals which greatly damaged the health of animals. These viruses needs a host cell to reproduce because it is a virus which is non-living outside the living cell.
What is species richness?(1 point)
the combined total of all individuals of each species in an ecosystem
the number of species in a community
the different types of species in an ecosystem
the population size of each species in a community
(Q1)An introduced species is not necessarily harmful to the environment; an invasive species has a negative effect.
(Q2) the number of species in a community
(Q3) If the location used to be too cold for non-native species, it is now warm enough to allow them to exist.
(Q4) It reduces biodiversity by reducing successful mating in native species.
(Q5) Large because it has led to several significant changes, including new invasive species and loss of natives.
Explanation:
i just did the quick check UwU
Species richness refers to the number of species in a community.
A community is a group of species living in a given ecosystem.An ecosystem refers to a particular geographic area where biotic factors (living things) and abiotic factors interact together.Species richness makes reference to the number of different species living in the same ecosystem.In conclusion, species richness refers to the number of species in a community.
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4.
is a single stranded RNA molecule that is a copy
of a gene from DNA.
I
Answer:
I think the Correct Answer is Messenger RNA or mRNA
Explanation:
Sorry if im wrong!
Which compound has the highest fuel value ? Why?
Answer:
Hydrogen gas has the highest calorific value of 150 KJ/g among all the fuels. So, hydrogen gas is considered to be an extremely good fuel.
Explanation:
Answer:
Hydrogen has the highest fuel value. I hope I helped
explain the water cycle in polar regions
Ice, Snow, and Glaciers and the Water Cycle
A dam is built in a remote area to provide electricity to nearby towns.
What is an unlikely effect of the dam? help!!!
Answer: option D decreased aquatic life upstream from warmer temperatures.
Explanation:
Answer:
increased fertility of the land downstream
Explanation:
I did the test