Answer:
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
1. What do you notice about the angle of Earth?
2. How do you think this affects the seasons in different hemispheres (halves) of the world?
Answer:
1. Today instead of rotating upright, The earth's axis is tilted 23.5 degrees. The angle varies a little over time, but the gravitational pull of the moon prevents it from shifting by more than a degree so. This tilt is what gives us seasons.
2.The cooling effects of more indirect sunlight cause autumn and winter. Because of the earth's approximately 23.5° tilt, the season in the northern and southern hemispheres reversed, about six months apart from each other.
Suggest and explain what will happen to the population of
zooplankton in March and April.
During primary succession, an ecosystem cannot 're-build' with large trees and bushes. Explain.
How is the flow of energy within food webs interconnected with the cycling of
matter?
Answer:
Dead producers and consumers and their waste products provide matter and energy to decomposers. Decomposers transform matter back into inorganic forms that can be recycled within the ecosystem. So, the energy that enters an ecosystem as sunlight eventually flows out of the ecosystem in the form of heat.
what are regenerative cells ???
Regenerative cells are specific types of cells that can be activated in order to restore organs and tissues back to a pre-existing normal state.
Stem cells are specific cells capable of generating new specialized types of cells, thereby allowing the regeneration of damaged tissues.For example, hematopoietic stem cells can be used to generate new red blood cells whose function is to transport oxygen in the bloodstream.Regenerative cells can be used in tissue engineering in order to restore the function and structure of damaged organs.In conclusion, regenerative cells are specific types of cells that can be activated in order to restore organs and tissues back to a pre-existing normal state.
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What kind of selection occurs in many birds when males that build strong nests and help care for young are chosen by females and mates
consuming ____________will help supply the phytochemicals that enhance the repair process when dna has been damaged.
Consuming fruits and vegetables will help supply the phytochemicals that
enhance the repair process when DNA has been damaged.
Phytochemicals such as flavonoids are produced by plants and they acts as
antioxidants in elimination of free radicals and in the repair process when
DNA has been damaged.
Fruits and vegetables are the primary sources of flavonoids which aids
DNA repair which is why it's the most appropriate option.
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When was a control used in the investigation of the amphipods and sea butterflies? Why was a control necessary?
pteropods or sea snails, also called sea angels, produce chemical deterrents to ward off predators, and some species of amphipods take advantage of this by carrying pteropods piggyback to gain protection from their voracious predators.
Why was progress in science interrupted during the dark ages? The Roman Empire fell in the 5th century thus advancements in science came to a halt. As science halted in Europe, where else did it advance? Science advanced in other areas of the world like China, Polynesia, and Arab nations.
why does exposure to high temperatures cause an enzyme to lose its biological properties?
Answer:
Shape of active site changes that's why
Enzymes are affected by temperature. So, as temperature increases, enzymes activities also increases, till optimum temperature is reached. If it goes above the optimum temp, the enzymes becomes denatured or can't function anymore due to change in its active site.
Which is a function of melosis?
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction
Explanation:
yeah <3
1) The by-products of cellular respiration include
A) energy and oxygen
B) glucose and oxygen.
C)carbon dioxide and water.
D) glucose and carbon dioxide.
water and carbon dioxide
what part does chlorophyll play in photosynthesis?
Answer:
Explanation:
Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar
what process can lead to an individual having too many or two few chromosomes?
The process which can lead to an individual having too many or two few
chromosome is as a result of mutation which occurs during meiosis.
Meiosis is the type of cell division which occurs in reproduction and the
production of sex cells such as sperm and egg. This process results in the
production of four unique daughter cells.
The homologous chromosomes not being properly distributed in the
process could lead to such types of error.
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Which of the following is an inherited trait
A. Having freckles
C. Being a good reader
C. Having a tattoo
D. Being a good dancer
Is born as a twin consider as disorder?
[tex]Hiya![/tex]
Sokka is here to help!!
I don't believe so, because I have twin sister and usually the time not everybody gets twins. I'm not saying that it isn't rare. I'm just saying your lucky if you have twins. Also, it can be from genesis if you have twins.
Hopefully, this helps you!!
[tex]Sokka[/tex]
What protein facilitates transmission of nerve signals between neurons?
a. neurotransmitters
b. interneurons
c. axons
d. myelin
chemicals in the body that transmit nerve impulses are:
what type of light (energy) does each light start out as?
which microscope would be best to look at the wings of two different butterflies to determine which is a monarch butterfly and which is a viceroy butterfly?
To determine the difference between a monarch butterfly and a viceroy butterfly, it would be best to use a microscope that has high magnification and resolution, such as a compound light microscope or an electron microscope.
What is a microscope?A microscope is an optical instrument that is used to magnify small objects or details, such as cells or tissues, so that they can be studied or observed more closely. There are various types of microscopes available, including compound light microscopes, scanning electron microscopes, and transmission electron microscopes, which use different principles to produce magnified images of the objects being examined.
A compound light microscope would allow you to see the structures of the wings in detail, while an electron microscope would provide even higher resolution images, but would require the wings to be coated in a thin layer of gold or other metal in order to be viewed. Both of these types of microscopes would allow you to see the fine details of the wings and compare them to determine which is a monarch butterfly and which is a viceroy butterfly.
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which means of particle transport requires energy from the cell
Answer:
Active transport requires energy input from the cell.
the principal gas in the biogas produced in a landfill is
Answer:
Biogas is composed mostly of methane (CH4), the same compound in natural gas, and carbon dioxide (CO2).
Explanation:
Do you think their ideas are enough to describe who a human person is? do you think there are other ways to describe the human person?
Answer: yes
Explanation: a person has a meaning, a meaning to live a reason
Summary about DNA , Genes , Traits , Chromosomes. (Explain & let me know about all 4 words. Summarize all these words.) Write about how all 4 things work together.
Answer:
Genes are segments of DNA that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus. And a trait is a gene-determined characteristic.
The illustration below represents____,
which is responsible for genetic diversity.
Answer: Crossing over
Explanation: This is what a crossing over gene looks like it starts together and separates here is evidence below ⬇️
The illustration below represents the crossing over stage in meiotic cell division which is responsible for the genetic diversity in organisms. Thus, the correct option is B.
What is Crossing over?Meiosis is the type of cell division during which the chromosome number in the daughter cells become half of that present in the parent cells from which they are produced. From one parent cell four daughter cells are formed in meiosis.
Chromosomes forms the chromatids in the cell which form tetravalent with the non-sister chromatids of the homologous chromosomes. This stage is called crossing over where the genetic material present in each of the chromatids are exchanged which results into genetic diversity in a species. After the crossing over stage, the chromatids separate from each other and goes to different daughter cells.
Therefore, the correct option is B.
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the organ that provides mechanical protection and nutritional support for the developing embryo is the
Answer:
uterus
Explanation:
match the definitions to the appropriate terms that describe the number of chromosomes.
Chen draws a diagram to show water changing from a liquid to water vapor. Complete the sentences. _______All the water molecules in the liquid are moving. ________ Some of the molecules have more .________ These molecules move enough to escape the surface of the liquid. This is called . ________ This makes the liquid become
kinetic energy is needed by the molecules in order to escape from the surface.
All the water molecules in the liquid are moving randomly due to the presence of some energy in it. Some of the molecules have more kinetic energy due to absorption of heat energy from the surrounding environment.
Due to high kinetic energy, these molecules move enough to escape the surface of the liquid. This is called boiling point. This makes the liquid become gas so we can conclude that kinetic energy is needed by the molecules in order to escape from the surface.
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2. What substances travel in the Xylem of flowering plants?
Answer:
I think water is the substances
what is the main product or purpose of photosynthesis?
Answer:
Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.
Hope that helps. x
the 5 physical factors that scientists use to develop ocean and seafloor
zones are
1
2
3
4
5
Answer:
1. Light penetration
2. Distance from shore
3. Depth of water
4. Temperature
5. Amount of nutrients/salt
Explanation:
Oceanographers use various methods to determine vertical and horizontal zones in the ocean. First and foremost are the distance from the land and the depth of the water. These contribute to the other factors, such as temperature and light penetration. They also measure how much salt or nutrients are available at that zone, which plays a role in how much life is discovered in the location.
The photic and mesopelagic zones are mainly grouped by light penetration, while mesopelagic, abyssopelagic, hadalpelagic, benthic, and bathyal zone are categorized by depth and temperature. When looking at the pelagic zone, the neritic and the oceanic sections are differentiated by the distance from the land.