Answer:
YOUR ANSWER IS
Explanation:
to use a hand on method to develop an understanding of the mechanisim of meiosis using an organisum
extinction occurs when the environment changes and
Answer:
a population dies out
Explanation:
when the environment changes causes the animals or living specimens to die out
A plant cell is placed in a freshwater solution. When it swells with water, filling it's vacuole,
we say that it has
A)crenated
B)plasmolyzed
C)lysed
D)become turgid
Answer:
D. The plant becomes turgid
Explanation:
in order to survive in its environment a single celled organism uses a contractile vacuole to remove excess water that diffuses into its cell. Another species a hydra also excretes excess water. Both processes involve the use of energy. Based on this information, state whether these two organisms live in fresh water or salt water support your answer
Answer:
They would live in salt water.
Explanation:
Salt water is a hypertonic solution where water needs to move outside of the cell because there is too much solute outside. Because the 2 organisms are removing excess water, it shows that they are living in salt water where water flows outside instead of inside the cell.
Based on the available information, these two organisms would:
Live in salt waterAccording to the given question, we can see that there is a need for survival which makes a single celled organism to make use of the vacuole to remove the excess water which it diffuses into its cell.
As a result of this, we can see that another specie, a hydra also excretes excess water which involves the use of energy.
Therefore, the conclusion we can reach about them is that they are living in salt water because it is a hyper tonic solution which allows water to move freely outside the cell because of the excess solute outside the cell wall.
Read more here:
https://brainly.com/question/15887615
2. Assume that crossing over does not occur in the region of each chromosome that is associated with the centromere. You have 46 centromeric regions in each cell, 23 that are copies of the DNA in your mother’s egg and 23 that are copies of the DNA father’s sperm. Show your work for A,B,C a. For any given gamete, what is the probability that all the centromeric regions (chromosomes) will be copies of the same ones that you received from your mother? b. It has been estimated that the average person is heterozygous for at least 2,000 protein forming genes. How many different kinds of gametes is it theoretically possible for each person to produce? c. Considering the maternal and paternal origin of the centromeric regions alone, how many different kinds of gametes can you produce?
Answer:
See below
Explanation:
A. centromeric regions from mother in one cell: 23
total number of centromeric regions in one cell: 46
for every centromeric region that is inherited by the gamete, there is a 0.5 probability that it is from the mother. Hence, if all are from the mother:
0.5 ^ 23 = 1.19 x 10^(-7)
B. Heterozygous for 2000 genes means 4000 possible alleles.
2 ^ 4000 = 1.3 x 10^(1204)
C. 2 ^ 46 = 7.03 x 10^(13)
Which statement best describes the kinds of questions science can answer ?
Answer:
option A
Science can answer only questions about the natural world
Explanation:
Science is a discipline which on the basis of implementation of experimentation procedure that can mimic the experimental setup resembling that of natural world. Therefore, is capable of answer questions about the natural phenomenas occurring in the natural world.
Answer:
option A.
Explanation:
That's because Science mainly deals with the study of the structure and behaviour of the physical and natural world through observation and experiments.
what is the point called where the retina is connected to the eye?
Answer:
Nervo óptico
Explanation:
responsável por dar ao ser humano a capacidade de ver e processar informações visuais rapidamente quando totalmente desenvolvido
Answer:
Optical nerve.
Explanation:
The point called where the retina is connected to the eye is called the Optical Nerve.
What are the inputs and outputs of cellular respiration and photosynthesis?
energy
water
oxygen
sugar
carbon
dioxide
Photosynthesis
Cellular Respiration
Inputs
Outputs
Photosynthesis
inputs : water , carbondioxide,
outputs: oxygen, sugar
Cellular respiration
inputs : sugar, oxygen
outputs: water, carbon dioxide
Pre-Test
Active
TIME REMAININ
1
2
46:50
Chan Hee is inflating a basketball using an air pump. He notices that the pump gets warm as he uses it. What is a good
hypothesis that could lead to new experimentation?
If there is no air in a basketball, then it is hard to play the game.
A basketball that is inflated bounces better than one that is not inflated.
If air in a pump is squeezed more, then the air gets hotter because energy is added to it.
Basketball is more fun to play than baseball because you have to move a lot more.
Answer:
If air in a pump is squeezed more, then the air gets hotter because energy is added to it.
Explanation:
A good hypothesis in the given case is that inflating basketball is getting warmer, the more it is pumped, and as a result, it would possess more heat or more friction due to all the air being pumped into the basketball at a single time.
hope this helped!
FALLING OF STONE
○ FAST CHANGE
○NATURAL DESIRABLE CHANGE
○NATURAL UNDESIRABLE CHANGE
○SLOW CHANGE
Answer:
answer is fast change due to free fall of object in air.
hi how old am i What is the dominant religion in North and South America? A. Islam B. Judaism C. Hinduism D. Christianity Please select the best answer from the choices provided
Answer:
D. Christianity
Explanation:
experiment to show transpiration takes place in plants
Explanation:
experiment to demonstrate transpiration phenomenon with the Bell jar method
Select the correct answer from the drop-down menu.
When multiple glaciers start their downward flow from a single point, they create a .
Answer:
They create a Mountain Peak
When multiple glaciers start their downward flow from a single point, they create a Mountain peak. So, the correct option is B.
What are Glaciers?A glacier is a sizable, slowly moving mass of ice that develops over a considerable amount of time as a result of the buildup of snow and ice. In areas where the average temperature is below freezing and there is enough snowfall to offset the melting that takes place during the summer, glaciers can be discovered. They can occur at lower elevations in some places, although they are mainly found at high altitudes or in the polar regions.
When several glaciers begin to flow downward, they build something resembling a pyramid. The mountain peak is created as a result of the glacier's movement from a single location. Due to the simultaneous movement of several glaciers to the ground, a pointed structure has recently created.
Therefore, the correct option is B.
Learn more about Glaciers, here:
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Your question is incomplete, most probably the complete question is:
when multiple glaciers start their downward flow from a single point, they create a [mountain cliff] or [mountain peak]
step 1: bacteria through nitrogen fixation and nitrification convert nitrogen into a usable form
Answer:
Bacteria through nitrogen fixation and nitrification convert nitrogen into a usable form to be taken up by plants.Which type of nonvascular plant grows in new or disturbed environments?
A. mosses
B. ferns
C. hornworts
Answer:
A.mosses
Option A is the right answer
About 500,000 tons of sediment are eroded from the Grand Canyon every day.
Wind, water, and gravity are constantly widening the canyon. What is making
the canyon deeper?
A. Mass movements
B. Coastal erosion
C. Wind erosion
D. River action
Is the greenhouse effect good or bad
In the text area below describe the function of the
cell wall.
DONE
Answer:
The cell wall supports and protects the cell, determines the shape of the cell, assists cells in communication, stores carbohydrates, and allows water and smaller particles to enter the selectively permeable structure of the cell.
Roots may store nutrients and then pass them on to nearby _________ aiding in the growth of new plants and roots
Answer:
i think its nearby PLANTS
Explanation:
plz mark brainliest
Answer:
Roots
Explanation:
Plants love to feed their friends! Their roots have many jobs and one of those is finding out information, and where to eat. It will pass this information to its fellow plants, and if they are not feeling so well, the fellow plants nourish it.
1 pc
If
you are given a quadrat of 1.5 square meters and you count the
dandelions in 10 quadrats and find an average of 2 dandelions per quadrat
area. Use this information to estimate the population density of dandelions
per square meter in a 4500 square meter open field. (make your answer
just the number, round to the nearest 2 decimal places) *
Your answer
In a stable population of rabbits and wolves a government agency enacts a 1 point
Answer:
1.33 dandelions per square meters
Explanation:
The correct answer would be 1.33 dandelions per square meter of land.
Size of quadrat = 1.5 square meters
Average number of dandelions per quadrat = 2
Total study area = 4500 square meter
Population density = number of organisms per unit area
There were 2 dandelions per 1.5 square meters
How many would be per square meter?
= 2 x 1/1.5 = 1.3333 dandelion per square meters
To 2 decimal places = 1.33 per square meters
What part of your brain controls all mental activities?
brain stem
medulla
cerebellum
cerebrum
Answer:
cerebrum
Explanation:
cerebrum controls reading, thinking, learning, speech and emotions
______________ surround each stoma and control its size.
A. Spongy Layer
B. Guard Cells
C. Palisade Layer
Answer:
The answer is B.
Explanation:
Guard cells is nearest to stomata which surround each stomata and control the size of stomata.
A goal of using animal models is to explain the molecular detail of specific behaviors encoded in the human brain. How would you compare the developmental biology experiments on memory and learning using the fruit fly, drosophila melanogaster, as evidence about the evolution of a human behavior?
Answer:
It is possible to compare the expression of homologous genes in the brain of D. melanoganster and humans, because the expression levels of conserved genes may be associated with the evolution of cognitive features such as complex learning and memory.
Explanation:
Model organisms can be used to understand the patterns and processes that affect human evolution. Drosophila melanogaster is a model organism that has been used to study expression patterns of conserved genes in the course of evolution. This model organism has also been used to develop genetic mutant lines in order to examine the role of genes evolutionarily conserved in animals, including those involved in neurocognitive development.
In genetic research, an experiment as the above described is framed in a research field named 'Behavioral Genetics', which is a discipline that studies how evolutionarily conserved gene networks may be associated with neurocognitive tasks during brain evolution.
Definition: In ecosystems, this is the breakdown of organic matter to its basic chemical components.
Answer:
Decomposition :)
Explanation:
Answer:
It is decomposition
Explanation:
what statement did louis pasteur confirm with his broth e
Answer:
Pasteur observed that the broth in the straight-neck flask was discolored and cloudy, while the broth in the curved-neck flask had not changed.
Explanation:
He concluded that germs in the air were able to fall unobstructed down the straight-necked flask and contaminate the broth. The other flask, however, trapped germs in its curved neck, preventing them from reaching the broth, which never changed color or became cloudy.
Hope this helps.
Answer:
Pasteur observed that the broth in the straight-neck flask was discolored and cloudy, while the broth in the curved-neck flask had not changed.
Can you think of other factor besides genes that might affect the growth and development of plants and other organisms
Answer:
the environmentthe food we takeExplanation:
hope it helps .
how do electrons gain energy in photosystem 1?
Answer: they absorb photons from sunlight.
Explanation:
Answer:
They absorb photons
How Are We Able to See the Moon?
Answer:
We can see the Moon as the sunlight reflects to us on the Earth from its surface.
Explanation:
We can see the Moon as the sunlight reflects to us on the Earth from its surface. The surface of the moon is very rocky and fairly dark. However, it provides enough light at night as it is so close to the earth. Everyone see the Moon at different positions at the same time.
The Moon also circles once around the Earth during a month.
Please help! 100 points!
What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?
Are any of these interactions between the cycles positive?
Are any negative?
What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it?
How can that influence the oxygen and carbon cycles?
Are there other cycles involved that have not been mentioned in this question?
What does this discussion suggest about the nature of the Earth as one large system?
Answer:
1.Nitrification happens when soil organisms change over ammonium into nitrate. Much of the cover between the carbon cycle and the nitrogen cycle happens within the soil, in forms conducted by soil organisms. Organisms break down supplements, construct modern compounds for their possess development, and inevitably pass on.
The second question im not sure sorry- the positive and negative one ;(
3. Many human activities have a significant impact on the nitrogen cycle. Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem. As nitrogen makes up 78% of the atmosphere, there is no shortage of it – it just isn't in a form plants and animals can use.
4. Carbon makes its way through living things as carbon-based compounds, like vitality particles, fats and proteins, in the long run cycling its way back into the environment. Nitrogen is basically found within the air as well and enters the environments as supplements for plants. Water, nitrogen and carbon cycles. Carbon moves from the air and back by means of creatures and plants. Nitrogen moves from the environment and back by means of living beings. Water moves on, over, or underneath the surface of the Soil.
5. Carbon cycle, Nitrogen cycle, Nutrient cycle, Oxygen cycle, Phosphorus cycle, Sulfur cycle, Rock cycle, Water cycle.
6. Wind, water, and ice disintegrate and shape the arrive. Volcanic movement and seismic tremors change the scene in a sensational and frequently savage way. And on a much longer timescale, the development of earth's plates gradually reconfigures seas and landmasses. Each one of these forms plays a part within the Cold and Antarctica.
People affect the physical environment in numerous ways: overpopulation, contamination, burning fossil powers, and deforestation. Changes like these have activated climate alter, soil disintegration, destitute discuss quality, and undrinkable water. Earth's surface is the as it were territory accessible to the human race. Understanding the forms by which that environment has been made and persistently changed is critical to decide the causes of natural degradation.
Convert 16.45 m into Kilometers
Answer:
0.01645 KM
Explanation:
1000 M = 1 KM
16.45 / 1000 = 0.01645
Hope this helps!
_______ is a primary developmental goal underlying the 10 principles on which the textbook is based.
A. Security and trust
B. Quantity of development
C. Directive opportunity
D. Teaching behavior
