Answer:
Explanation:
Eee
Help me please thanks the first one
Answer:
7683.2 Joules
Explanation:
We can calculate potential energy using the equation that is used to calculate the work done by a conservative force, in this case, gravity.
U(x)gravity = mgy
U represents potential energy, m is mass, g is gravity, and y is the height.
U(x) = (80 kg)(9.8 m/s^2)(9.8m)
Potential Energy = 7683.2 Joules
Can DNA leave the nucleus ?
Yes
Or
No
No it never leaves the nucleus, that's wear it is located
in guinea pigs short hair is dominant over long hair. a female guinea pig with short hair but whose father had long hair is mated with a male whose parents were both short haired, but who has long hair. using a punnett square, predict the genotypic and phenotypic ratios of their offspring?
Giving points and brainliest to the first person
how does asexual reproduction limit variation in species?
Answer:
less of a chance for mutations
Explanation:
Answer:
Asexual reproduction is a cheap and fast method for producing large numbers of propagules having little diversity. The method of cell division is mitosis, which produces identical daughter cells. This is largely advantageous when survival of offspring is dependent, more upon explosive population growth, than on the diversity of each individual. Plankton species are such an example, where to survive they mostly just need to out produce predation.
Most organisms engage in sexual reproduction at some point in their life cycle to introduce diversity when survival is dependent on susceptibility to parasites. Host — parasite coevolution is an arms race accelerated by diversity.
In sexual reproduction, the method of cell division is meiosis, where diversity is introduced through crossing over, independent assortment, and also, random fertilization.
Explanation:
ALOT OF POINTS PLEASE HELP :)
How did humankind discover the presence of DNA?
Answer:
The real breakthrough in understanding DNA, however, came with the discovery of its structure in 1953. The discovery of the structure of DNA is often credited to James Watson and Francis Crick.
Explanation:
A botanist finds that when compared to pink flowers, the population of purple flowers is very high. Ten years later, the population of purple flowers is nearly gone, and the number of pink flowers has tripled. Why would this be?
Answer:
Because of the reduction or near extinction of the purple flowers noticed by the botanist Ten years after it was in abundance, this fall in the population could be caused by the unfavorable change in the plant's environment. While the pink flowers tripled because some factors in the environment were favorable for its growth.
Explanation:
From the question, it was mention that the botanist noticed at first purple flowers had more population than the pink flowers and that changed after 10 years when the population of the pink flowers tripled and purple flowers were nearly gone. Some of the causes that could be responsible are:
1. Disease and pest attack on the purple flowers.
2. The pink flowers developed a good survival mechanism even in adverse conditions.
3. Environmental stress could also come into play on the purple flowers.
4. Climate which initially supported the growth of the purple flowers had changed. Because variations exist in plants and the ideal conditions necessary for plant growths and proliferation varies among plants.
.
In which experimental set up shown would you expect the Elodia plant inside a test tube to produce the least amount of oxygen
Answer:
Due to less concentration of carbondioxide gas.
Explanation:
Elodia plant inside a test tube produces the least amount of oxygen due to limited carbondioxide gas that is necessary for photosynthesis process. If a test tube has less amount of carbondioxide gas which is a reactant in photosynthesis so in the end the Elodia plant generates less amount of glucose as well as oxygen while on the other hand, if there is more carbondioxide gas is available to Elodia plant, more oxygen as well as glucose is produced.
how did advancements in technology help scientists better understand process of cell division?
Answer:
As is true for many fields of research, cell biology has always been ... Thanks to these advances we now have access to microscopes and ... You might then also realize that the new method, at least on paper, may have additional applications. ... which makes the technology attractive to yet more scientists.
Explanation:
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With the creation of the microscope, humans were able to observe plant and animal cells, and as technology advanced, scientists were able to learn more about these various types of cells.
What is a microscope?A microscope is a device that can be used to examine small objects, including cells. The image of an object is magnified in the microscope by at least one lens.
In most cases, the light is focused on the sample by passing it through a condenser.
After passing through the sample, the light passes through the objective lens, which magnifies the image of the sample, and then to the oculars, where the enlarged image is viewed.
The discovery of the green fluorescent protein (GFP), the development of increasingly sophisticated microscopes, and the development of in vitro assays that faithfully reproduce cellular functions are just a few examples of technological advances that have fueled many areas of cell biology.
Thus, it can be concluded that the advancements in technology help scientists better understand process of cell division.
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If two hybrid tall pea plants are crossed what is the probability that the offspring will have the tall phenotype?
Answer:
There is a high probability that the Pea plant will have a High phenotype!
Explanation:
Because both "parent plants" are tall, this will cause the offspring to also be tall, this will be because it in it's genes or in other words DNA too be strong.
John had two different colored rabbits that were brothers, one grey rabbit, and one that was white with black spots. Both of these rabbits' parents were only white and black. Explain the terminology and reasoning for these color differences the brothers compared to their parents.
Answer:
They recombine in the offspring, bringing the total gene count back up to two per trait per animal. This recombination of genetic material from parents into children is why we have such diversity among both people and rabbits.
Explanation:
I majored in Biology
I need someone to do a very big task for me in biology..I will give brainlist. The teask i need is the first one in my profile. Thankyou
Answer:
Explanation:
i'll try
Most of a cell's growth and activity occurs in the__
phase.
Answer:
The mitachondria.
Explanation:
it is a place in the cells proteins which build and replace each other to fix cells or make new ones.
does anyone know this pls help
Answer:
A person standing on the ground is barely affected by surface gravity
look at the picture
Which of the following is an incorrect match? a. endocytosis – substances taken into the cell b. exocytosis – substances secreted from the cell c. pinocytosis – liquids secreted from the cell d. phagocytosis – large particles taken into the cell
Answer:
The correct answer is c.pinocytosis – liquids secreted from the cell
Explanation:
Pinocytosis is a type of endocytosis in which substances are internalized into the cell from the celullar exterior. The components are not secreted from the cell but are uptaken into the cell. This internalization process is characterized by the formation of an invagination of the cell membrane where then is formed a vesicle surrounding the component to be uptaken.
plzzzzzzzzzzz help lol
Answer:
litter
Explanation:
Precipitation falls to the ground and eventually ends up in the ocean. Which of the following is the most direct way for the water to get from the soil to the ocean? A. By way of a recharge zone with a low percolation rate B. By way of a closed watershed C. By way of an open watershed D. By way of thermohaline circulation within an aquifer
Answer: D. By way of thermohaline circulation within an aquifer
Explanation: The most direct way for the water to get from the soil to the ocean is by way of a recharge zone with a low percolation rate. Human activity in the recharge zone can limit the amount water that reaches the aquifer.
Enzymes lower the activation energy for a chemical reaction to proceed.
Answer:
The statement is true since one of the main functions of the enzyme is to lower the activation energy so that a chemical reaction to proceed.
Explanation:
Enzymes are specialized protein molecules that contribute to faster chemical reactions. One of the functional characteristics of an enzyme is that it reduces the activation energy for a reaction to occur.
Activation energy is the amount of net energy required for a reaction to occur. By lowering the activation energy, a reaction occurs faster, which is achieved with a biocatalyst such as enzyme.
Which molecule is split apart during the light reactions in photosynthesis?
A. Water
O B. Carbon dioxide
ООО
C. Glucose
D. ATP
Because _________
is not a reason to reject frozen food.
A. ice crystals appear on the product or package
B. fluids or frozen liquids appear in case bottoms
C. there are water stains on the package
D. a similar or identical product is available in freeze-dried form
Answer:
D a similar or identical product is available in freeze-dried form
Answer:
D just took the test
Explanation:
The parietal pleura lines the
Answer:
Uh im confused so here is the defination The parietal pleura is the outer membrane that attaches to and lines the inner surface of the thoracic cavity, covers the upper surface of the diaphragm and is reflected over structures within the middle of the thorax. It separates the pleural cavity from the mediastinum.
Explanation:
Using the data in Figure 13.2, translate the following DNA segment into an amino acid sequence: -TTTAGCGAGTCTCGA-
Which statement is best represented by the diagram?
All carbon is in the form of carbon dioxide,
Carbon can exist in many forms, but the total amount of carbon stays the same.
The amount of carbon in the cycle can increase or decrease based on the number of factories present.
Only living things release carbon dioxide into the atmosphere.
Answer:
All carbon is in the form of carbon dioxide
What are the three blood types? Explain how there could be an AB blood type.
Answer:
AB
O
A
B
the AB blood type is created (mostly) by someone with A blood type making a baby with someone with B blood.
Explanation:
The human blood group is classified into four major classes which are A, B, AB, and O. This is possible due to multiple allelism and codominance which are found in the alleles A and B.
What is blood typing?A blood type is the classification of blood into different groups, based on the presence or absence of antibodies and inherited antigenic substances on the surface of the red blood cells which are present in the blood. These antigens may be proteins, carbohydrates, glycoproteins, or the glycolipids, depending up on the blood group system.
In humans, the blood typing is of four types that is A, B, AB, and O. This is because, the blood typing is an example of multiple allelism and codominance. A and B alleles are codominant and O is recessive.
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what do microbiologist do? why are their contributions imported to science? pls help!
During the cell cycle, (1)_______ is the stage when the cell is performing
its functions and/or resting, whereas _(2)______ is the stage when the
cell is actively dividing.
Answer:
A is correct happy new year
Prokaryotes are structurally simple creatures that have existed for over a billion years. Which of the following are prokaryotes?
A Protists
B Bacteria
C Fungi
D Plants
Answer:
B. Bacteria
Explanation:
Trust me It's correct
Which statement provides accurate evidence for how humans are affecting the carbon cycle?
a. "This increased amount of carbon dioxide and other greenhouse gases are changing our planet's
climate patterns."
b. "Environmental policies protecting endangered species are being legislated"
c. "forest are becoming more common because of increased global temperatures"
d. "When we as humans burn fossil fuels, we are disrupting the natural cycling of carbón
In which stage do vertebrate embryos or offspring show the most similarities?
Answer: Middle stages
Explanation:
Answer:
Earliest stages
Expation: