explain how the geologist knows that the flow is older then the intrusion
How does Klinefelter syndrome caused by nondisjunction might have occurred??
Answer:
Cause. Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes.
Explanation:
The picture below is associated with which biomolecule?
protein
carbohydrate
lipid
nucleic acid
Carbohydrates is ur answer mate
Please help me with science!
what is the difference between DNA of a stomach cell and the DNA of a brain cell?
Answer:
they have different functions
Explanation:
the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors
Since they both have the same genetic information stored in the same sequence of nucleotides, the DNA of a stomach cell and the DNA of a brain cell is practically identical. However, there may be functional distinctions between both kinds of cells depending on how some genes are expressed.
What happens during development?Cells specialize during development and differentiate into various cell types with distinct functions. According to the requirements of the cell, specific genes are turned on or off as part of the differentiation process.
For instance, a brain cell may express genes that enable it to relay messages and make connections with other cells in the nervous system, whereas a stomach cell may express genes that allow it to produce digestive enzymes and absorb nutrients.
Therefore, the DNA of a stomach cell and the DNA of a brain cell is nearly identical since they both have the same genetic information stored in the same sequence of nucleotides.
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which type of objective lens are there in compound microscope. in one line
The chromosome of a bacterium
Select one:
a. is wrapped around proteins.
b. is found within the nucleus.
c. occurs in multiple pairs within the cell.
d. has a circular shape.
slove and get brainliest!!!
Why can’t we send cactuses to Mars a plant that doesn’t need much water in a dessert environment
Answer:
Sunlight levels
Explanation:
the cacti would not get enough sunlight, as it is not close enough. Also, it does need water every month or so.
Answer:
because there's no oxygen
A tissue is a group of cells which perform essentially the same function. true or false
Answer:
True
Explanation:
A tissue is a group of cells that does the same function.
Why are individuals in many developing countries susceptible to diseases such as
polio and pertussis?
because of a lack of education
because of poor hygiene
because of genetic variation
because of a lack of vaccination
Answer:
because of lack of vaccination
Explanation:
this occur mostly in Nigeria
Answer:
I hope this helps.
Explanation:
Which statement is not an example of how the use of resources has changed?
A. More products are made from recycled materials.
B. Cars still largely rely on oil.
C. Car companies have developed hybrid cars.
D. More wind farms are present in the United States.
Answer:
B. Cars still largely rely on oil.
Explanation:
Nowadays, most countries still use transportation systems that burn fossil fuels. An example of this may be private cars that consume gasoline, which derives from fossil fuels (oil). The use of fossil fuel transportation systems increases the emission of carbon dioxide (CO2), a major greenhouse gas involved in global warming. In the near future, it is expected that fossil fuel-based vehicles can be replaced by electric cars that use energy obtained from renewable sources (e.g., solar energy, wind energy, etc).
Answer:
B is not correct. I know cause I took the test here are the correct answers!
Car companies have developed hybrid cars.
More wind farms are present in the United States.
More products are made from recycled materials.
Explanation:
I just want you to get it right and get an A
What is the next step after a hypothesis
Answer:
test hypothesis..........
I’ll mark you as brainliest
hypotonic solution is the answer
In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?
Answer:
The S phase and prophase
Explanation:
Replication: it occurs in the S phase of the cecular cycle and the condensation of the chromosomes, the phase is M.
help ASAP! Please! Ill mark brainliest
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Explanation:
b
what are two limitations in diffusion experiment ??
Answer:
Once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. Diffusion is limited by the surface area to volume ratio of the organism.
Explanation:
once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. diffusion is limited by the surface area to volume ratio of the organism.
Looking at the chart provided, the students need to develop a classification scheme to distinguish plant and animal cells. The presence of which of the following structures/organelles would be most useful for this purpose?
Answer:
The Cell Wall of plants are more geometrical, than animal cells. Plant cell wall are also stronger.
Plant cell is larger than animal cells
Plant cell have chloroplast while animal cells doesn't
Explanation:
Answer:
cell wall
Explanation:
Plant cells contain a cell wall while animal cells do not have a cell wall. By looking for the presence of a cell wall, students would be able to positively identify a cell as either plant or animal.
any good hypothesis idea?
Answer:
is plant growth affected by temperature
Explanation:
how do mutations lead to genetic diversity?
The mutation Mutations are changes to an organism's DNA and are an important driver of diversity in populations. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.
hope it helps.
What phase of mitosis is shown in the picture above?
A. Metaphase
B. Anaphase
C. Telephase
D. Prophase
The phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.
What is Mitosis?Mitosis may be defined as the type of cell division in which two daughter cells are formed from a parental cell with the exact number of chromosomes.
In metaphase, the chromosome usually lines up in one plane and forms an equatorial plate in which they are attached to the spindle fiber through their centromere.
Therefore, the phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.
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The physical appearance or the way a gene looks is known as its.... A. Gene B.Allele C.Phenotype D.genotype
Which cellular structure produces proteins using coded instructions from DNA?
a) nucleus
b) chloroplast
c) mitochondrion
d)ribosome
Essay
In a food web, energy is transferred from one level to the next. Describe what might happen in an ecosystem if the number of primary producers was dramatically reduced.
Answer:
from food web their are many eaters and subeaters so we can easily say energy will decrease when th e first one eat the other
Answer:
the primary consumers or herbivores which feed on the producers would die.
Explanation:
herbivores eat plants and if the plants reduce they will die
What would happen if the rate of evaporation reduces
Answer:
When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.
Answer:
if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.
Fossils evidence shows that ___________________were the first photosynthetic organisms on earth,about 1.2 billion years ago.
Answer:
cyanobacteria
Explanation:
How can you explain the difference in number of mitochondria in these types of cells?
Answer:
Organs which need alot of energy to function properly have a greater number of mitochondria
Explanation:
Mitochondria are sites for respiratory enzymes which yield energy for the cells thus skeletal muscles which need alot of energy have more mitochondria than liver and liver due to doing more activities than skin has more mitochondria than the skin.
Answer:
Skeletal muscle cells have a very high amount of mitochondria as well as liver cells because they need high amounts of energy to carry out their functions, whereas skin cells don't need high amounts of energy to function.
A student made a model of an ecosystem inside a sealed plastic bottle. She
placed soil, rocks, water, plants, and animals inside the bottle. How is the
model unlike a natural ecosystem?
A. The model has more consumers than a natural ecosystem.
B. The model lacks the producers found in a natural ecosystem.
C. The model has more predators than a natural ecosystem.
D. The model lacks the diversity found in a natural ecosystem.
The model lacks the diversity found in a natural ecosystem.
What is a natural ecosystem?A natural ecosystem is made up of living and non living parts. Energy is cycled in the system along the food chain from one organism to another.
Thus the model that is made by the student is unlike a natural ecosystem in the sense that the model lacks the diversity found in a natural ecosystem.
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Answer:
D. The model lacks the diversity found in a natural ecosystem.
Explanation:
Which of these is NOT a reason to take photographs of a crime scene?
A to document the relative locations and positions of evidence
B some evidence can not be collected
C some evidence does not last / is temporary
D once evidence is used in court it is thrown away, and photographs allow CSI to study evidence years later
the answer would be d hope thos helps
The one that is not a reason to take photographs of a crime scene is once evidence is used in court it is thrown away, and photographs allow CSI to study evidence years later. The correct option is d.
What is an evidence?They photograph and physically measure the scene, identify and collect forensic evidence, and keep the evidence in the proper chain of custody.
Fingerprints, footprints, blood and other bodily fluids, hairs, fibers, and fire debris are all gathered by crime scene investigators all are included.
While the most obvious goal of crime scene photography is to create a visual record of the crime scene and all of its relevant features, the best example of photography's role is the presentation of a logical story.
The one reason not to photograph a crime scene is that the evidence is used in court, it is discarded, and photographs allow CSI to study evidence years later.
Thus, the correct option is d.
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The diagram below shows a type of virus called a bacteriophage. Select the name of the structure that the virus can use inside a host cell to produce new virus particles.
Answer:
It's the DNA..........
The structure that the virus can use inside a host cell to produce new virus particles is the DNA.
Bacteriophage which literally means bacteria eater is a type of virus that has the ability to infect bacteria.
Basically all bacteriophages consist of nucleic acid molecule (DNA) which is surrounded by a protein coat( the capsid head).
It also possess a tail sheath through which it transfers it's DNA into host cell.
Eventually, new bacteriophages assemble and burst out of the bacterium in a process called lysis.
Therefore, the structure that the virus can use inside a host cell to produce new virus particles is the DNA.
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