Answer:
isolation is a significant factor in adaptation and speciation
Explanation:
In the theory of evolution by natural selection proposed by Darwin, adaptation refers to the adjustment of organisms to their environments in order to increase their chances of survival in that environment. In the Galapagos Islands, Darwin observed that finches had different types of beaks adapted to the type of food they ate. From this observation, Darwin proposed that finches evolved to eat different food sources. In this case, the islands lead to an adjustment (evolutionary) process by which geographically isolated individuals accumulate genetic differences in order to adapt them to the environmental conditions in the islands, which then may also prevent breeding between individuals from different islands when they are reunited (i.e., it may also lead to speciation).
HELP!! 20 POINTS!!
Why is it more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain?
the trophic pyramid is the reason
what the trophic pyramid is: Trophic pyramid, also called an energy pyramid, showing the progression of food energy. The pyramid base contains producers, organisms that make their own food from inorganic substances. All other organisms in the pyramid are consumers
- predators get little energy from the prey they eat so they must consume multiple prey
It is more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain because the higher trophic levels have less energy than the lower ones.
The trophic levels of food chainThe food chain is defined as a feeding pathway that consists of similar organisms that are placed in the same trophic levels.
Trophic levels in a food chain are those levels that is occupied by a group of organisms that have a similar feeding mode.
The plants which are the producers are at the lower trophic level while the carnivores are at the higher trophic levels.
The carnivores eats meat from other animals but not plant or plant products which obtain direct energy from sunlight.
Therefore, It is more difficult for top carnivores to obtain sufficient energy resources than it is for animals lower on the food chain because the higher trophic levels have less energy than the lower ones.
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some _______ environmental changes can cause tge genes of an entire population to change.
Answer:
some unfavorable environmental changes can cause the genes of an entire population to change.Unfavorable
Explanation:
From fossil evidence, you know two species shared a common ancestor approximately 50 million years ago. In comparing a known neutral sequence between rats and mouse, you found 92 base differences in 1000bp. From this information, which of the following values is closest to what you would predict the mutation rate to be?
a. 1 x 10-9
b. 4 x 10-9
c. 2 x 10-9
d. 5 x 10-9
e. 5 x 10-8
f. 8 x 10-9
Answer:
Option c ([tex]2\times 10^{-9}[/tex]) is the correct alternative.
Explanation:
Given:
Common ancestor,
= 50 million years ago
Base differences,
= 92
Now,
The predicted mutation rate will be:
= [tex]\frac{92}{50\times 10^6\times 1000}[/tex]
= [tex]\frac{1.84}{10^9}[/tex]
= [tex]1.84\times 10^{-9}[/tex]
or,
= [tex]2\times 10^{-9}[/tex]
Thus the above solution is the right one.
Place the following cell types in the order they are shown to appeared on earth
Answer:
1. Prokaryotic (about 3.5 to 3.8 billion years ago)
2. Photosynthetic (about 3.4 billion years ago)
3. Eukaryotic (about 2.7 billion years ago)
4. Aerobic (about 2.5 billion years ago)
5. Anaerobic (about 2.4 billion years ago)
6. Multicellular (about 600 million years ago)
Explanation:
I am not completely sure but my research indicates the following in chronological order from the oldest to the newest:
1. Prokaryotic (about 3.5 to 3.8 billion years ago)
2. Photosynthetic (about 3.4 billion years ago)
3. Eukaryotic (about 2.7 billion years ago)
4. Aerobic (about 2.5 billion years ago)
5. Anaerobic (about 2.4 billion years ago)
6. Multicellular (about 600 million years ago)
Disclaimer: My answer may be incorrect because I am not completely sure but I think this is right.
If you are fine with it, I would appreciate if I got the brainliest answer :)
According to the question the sequence of the cell type is as follows:
Prokaryotic (Approx 3.5 to 3.8 billion years ago) Photosynthetic (Approx 3.4 billion years ago) Eukaryotic (Approx 2.7 billion years ago) Aerobic (Approx 2.5 billion years ago) Anaerobic (Approx 2.4 billion years ago) Multicellular (Approx 600 million years ago)How did life begin and evolve on Earth?Many scientists consider that RNA, or similar to RNA, was the first molecule on Earth to self-replicate and initiate the process of evolution that led to more advanced forms of life, including human beings.
Thus, the correct sequence is that.
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1. Which of the statements below best describe marketing?
A. Bringing products to the costumers' knowledge and attention
B. Bringing products to food preparation
C. Bringing products to factory owners
D. Bringing products to the packaging
2. The net income amount or money received from selling preserved foods is called
B. Dividend
C. Cost
D. Capital
A. Profit
3. It contains important information about the product like brand, address, date of
manufacture and expiration date, list of ingredients, and nutrition facts.
A. Labels B. Marketing C. Packaging D. Recording
4. This refers to a medium that disseminates printed matter/materials for the
advertisement of preserved food products like newspapers, magazines brochures
flyers, and other printed materials.
A. Product display
B. Print Media
C. Food packaging
D. Blogging
Answer:
1. A
2. D
3. A
4. B
This is the answers
How can cells store the sugar that is produced in photosynthesis?
Answer:
it is stored as starch
Explanation:
Answer: It is stored as starch.
Explanation: that's what I would say. hope this helps and I hope you have a super fantastic day:)
Need help again ASAP
What does the data reveal about the relationship(s) between the impactor's mass and crater depth?
Answer:
For each ball, the crater diameter increased as the height of the ball drop increased. My conclusion is that crater diameter increases with increasing mass. Also as the height of the ball increases, so does the crater diameter. Thus crater diameter is proportional to the mass and velocity of the impactor.
Explanation:
correct me if im wrong!:-)
What does the red at the beginning of the video represent? What does this mean about the landscape around Mount St. Helens before 1980?
Answer:
On May 18, 1980, an earthquake struck below the north face of Mount St. Helens in Washington state, triggering the largest landslide in recorded history and a major volcanic eruption that scattered ash across a dozen states
Explanation:
Where does the fixed nitrogen that enters the ocean come from?
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
The ocean absorbs nitrogen gas from the atmosphere. In open-ocean areas with low concentrations of nutrients (“oligotrophic” regions), some of this nitrogen is taken up by microbes and transformed into various chemical compounds.
ThanksHope it helpsWhich sustainable building practice does the photograph show?
A. Replacing wilderness with buildings to reduce the absorption of
carbon dioxide
B. Reusing old bottles and cans as insulating building materials
C. Using high-density housing to conserve resources
D. Reducing fossil fuel consumption and its associated pollution
SUBMIT
Answer:
The answer is C
Explanation:
Just did it
The sustainable building practice does the photograph show is to using high-density housing to conserve resources. Therefore, option (C) is correct.
The act of caring for these resources so that all living things can benefit from them now and in the future is known as conservation. Natural resources are the source of everything we require for survival, including food, water, air, and shelter.
Recycling the resource allows us to conserve it. For instance, many items can be recycled and repurposed into new ones. Recyclable materials include paper, plastic, glass, metal, and even electronic goods.
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PLEASE ANSWER ASAP
Put in order the interactions of the question
Answer:
First off it would 'attack' the immune system, the virus would attach itself to healthy cells, then continue to move through your body - your bodies first response is always going to be your immune system - it's going to fight the foreign visitor aka the virus. The virus will then move down towards your respiratory system. And given the symptoms that you may experience whilst your body is fighting the virus is how it may work with other systems (these two being the main ones) for example; diarrhea, nausea/vomiting, headaches, sore throat, etc. And it will also depend on the patients history. Hope this helps.
Explanation:
Someone please help!
Don’t send links
Please match the following terms with the appropriate definitions.
Distance
[ Choose ]
Displacement
[ Choose ]
Slope
[ Choose ]
SI unit for speed and velocity
[ Choose ]
SI unit for acceleration
[ Choose ]
Definition of respiration
a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances
Answer:
A process of oracajsjsjsjsjsjjss
Explanation:
Nithingbs lol just for poimts
Which of the following represents an abiotic factor?
O Bacteria
O Protist
O Plants
Wind
Answer:
Last one. Wind, because it is non-living which is basically what abiotic is.
Which of the following would be an example of positive feedback? thanks!
Select one:
Shivering by the muscles when temperature drops.
The attraction of platelets when a wound occurs.
Sweating due to an increase in body temperature.
The reduction of hormone production during pregnancy.
Answer:
2
Explanation:
The attraction of platelets when a wound occurs indicates a positive feedback. The correct option is B.
What is feedback mechanism?The feedback mechanism is the body's mechanism for keeping hormone levels within desired limits.
The feedback mechanism is activated by an increase or decrease in hormone levels. The body has two types of feedback mechanisms: positive feedback mechanisms and negative feedback mechanisms.
Positive feedback loops and negative feedback loops are the two types of feedback loops.
Positive feedback increases system output, causing growth or decline. Negative feedback dampens output and helps to keep the system stable around an equilibrium point.
Platelet plug formation is thought to be a positive feedback process because ADP and VWF levels rise as more platelets activate to form the plug.
Thus, the correct option is B.
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What are the benefits of being a poisonous plant in
the Rain Forest
Answer:
being poisonous plant helt a plant to not b eaten by pests
Explanation:
plants grow well without being affected
Purple flowers are a dominant trait while white flowers are a recessive trait.
Explain what this difference means in terms of the alleles for flower colour.
Answer:
the dominant trait will always over role
Which of the following statements about aquatic ecosystems IS correct?
Rivers and streams are flowing salt water ecosystems
Marine ecosystems are standing freshwater ecosystems
Ponds and lakes are flowing-water ecosystems
Estuaries are made of both fresh and salt water, where rivers meet the sea.
Which of the following statements about yeasts are true?
1) Yeasts are fungi
2) Yeasts can form pseudohyphae
3) Yeasts reproduce asexually by budding
4) Yeasts are facultatively anaerobic
5) All yeasts are pathogenic
6) All yeasts are dimorphic
Select the option below that contains the numbers referring to true statements.
NO LINKS!!!
Answer:
Yeasts are fungi, that is the answer
Explain the advantages to a plant of having its cell membranes surrounded by cell walls
Answer:
Advantage of cell walls
It protect and support the cell .
To give difinite shape for the cell.
Having cell walls surrounding cell membranes provides several advantages to plants, including structural support, protection against pathogens, regulation of water balance, and prevention of cell rupture.
The cell wall is a rigid structure located outside the cell membrane in plant cells. It is composed primarily of cellulose, a complex carbohydrate. Here are the advantages of having cell walls:
Structural Support: Cell walls provide mechanical support to plant cells and help maintain the overall shape and structure of the plant. They allow plants to stand upright and withstand environmental forces such as wind or gravity. The cell walls of adjacent plant cells are interconnected, forming a strong network that provides stability to the plant as a whole.
Pathogen Protection: The cell wall acts as a physical barrier against pathogens such as bacteria and fungi. It prevents the entry of pathogens into the plant cells, reducing the risk of infection. Additionally, the cell wall can contain antimicrobial compounds and other defense molecules that provide further protection against pathogens.
Water Regulation: The cell wall plays a crucial role in regulating water balance within plant cells. It helps maintain turgor pressure, which is essential for cell expansion and overall plant growth. The cell wall allows water to enter and exit the cell in a controlled manner, preventing excessive water uptake or loss.
Cell Rupture Prevention: The rigid cell wall helps prevent cell rupture or bursting when the internal pressure within the cell increases. It provides strength and stability to the cell, allowing it to withstand internal pressure changes without bursting.
Overall, the presence of cell walls in plant cells offers significant advantages in terms of structural support, protection against pathogens, regulation of water balance, and prevention of cell rupture. These advantages contribute to the overall health, growth, and survival of plants in diverse environmental conditions.
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Jane Goodall did some things that would probably not be done today in a scientific study. What were some things?
A. She gave the chimps names
B. She allowed them to get used to her presence
C. She gave them some food
D. All of the above
Answer:
Answer is D, all of the above
What processes and what form is carbon released from all organisms?
Which of the following is not a kingdom of
life?
Question is not complete....
How does de-icing roads with salt negatively impact the environment? a. The road salt attracts deer that are then hit by motor vehicles. b. It removes necessary salt from the local water courses. c. The high salinity of the surface runoff is harmful to freshwater ecosystems. d. The salt harbors salt eating bacteria that are toxic to animals.
Answer:
c. The high salinity of the surface runoff is harmful to freshwater ecosystems
Explanation:
Looks the most plausible!
The negative effects of deicing roads is that the high salinity of the surface runoff is harmful to freshwater ecosystems.
What is deicing of roads?Deicing refers to the process whereby certain substances are used on the road to melt ice found on the road.
Deicing of roads is usually done with salts which lowers the freezing point of water, thus melting the ice.
The negative effects of deicing roads is that the high salinity of the surface runoff is harmful to freshwater ecosystems.
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The fossil presence of anatomically modern humans in ________ demonstrates that our ancestors were capable of substantial water crossings by 40,000 years ago.
Answer:
The correct answer is - Africa.
Explanation:
Scientists found the fossils of modern humans called Mota an ancient man who lived around 40000 to 45000 years ago in Ethiopia. It was the first DNA isolated from Africa.
This DNA sample says that the Europeans have 6% of the DNA of this modern human, which suggests that there was substantial migration of people into Africa from Europe and the middle east by water crossings.
Which of the following statements best describes what happens during exercise?
(Please explain why each of the incorrect statements are wrong. Thank you!)
A.
Blood vessels in the muscles dilate to increase blood flow.
B.
Blood vessels in the heart dilate to increase blood pressure.
C.
Blood vessels in the organs dilate to increase blood oxygen.
D.
Blood vessels in the lungs dilate to increase blood volume.
Is a fish a living organism?????????????????????????
Answer:
yes a fish is a living organism
Answer:
yes
Explanation:
it can move, eat and produce
An atom has 5 electrons in its outer electron shell. To complete its outer shell it needs_____additional electrons.
-5
-3
-2
-1
-4
to complete the outer shell it needs -3 additional electrons
Flora y fauna y en clima frio??
Answer:
Explanation:
no entiendo