Answer:
The difference between founder events and population bottlenecks is the type of event that causes them. A founder event occurs when a small group of individuals is separated from the Page 3 rest of the population, whereas a bottleneck effect occurs when most of the population is destroyed
Explanation:
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The diagram below shows a hand warmer. It uses a controlled burn of a type of lighter fluid called naphtha.
The device has a refillable reservoir that holds the naphtha liquid. The fuel moves into a glass fiber burner, which absorbs the fuel and allows it to burn slowly without producing a flame. Oxygen reaches the burner through the holes on the cap at the top of the device. As the fuel is burned, heat is conducted to the metal casing of the device.
When the hand warmer is tested, it becomes too hot and uncomfortable to hold. How could the device be modified to solve this problem?
A.
by increasing the size of the fuel reservoir so that it can store more liquid fuel
B.
by replacing the glass fiber burner with a material that does not soak up liquid fuel
C.
by attaching a covering to reduce the amount of oxygen entering the device
D.
by using a fuel that is more flammable than naphtha so that the fuel can be used faster
Answer:
c
Explanation:
by attaching a covering to reduce the amount of oxygen entering the device
can oxygen diffuse across the cell membrane?
Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion or a type of diffusion known as osmosis. diffusion is one of the principal method of movement of substances within sales, as well as the method for essential small molecules to cross the cell membrane.
Explanation:
Hope this helped Mark BRAINLIEST!!!
What makes the finding of the finding of Wooly Mammoth fossil very unique from other fossils?
Answer:
The wooly Mammoth is a animal that was once tried to be revived and it is very rare to find
Explanation:
Here is a model of Earth's yearly orbit around the Sun. In this model, the names of the seasons apply only to the northern hemisphere, Seasons in the Northern Hemisphere Equinox March 20 or 21 Solstice June 20,21, Spring Winter Summer Autumn Solstice December 21 or 22 Equinox s September 22 or 23 Examine the model, and think about how it would be different for the southern hemisphere. What causes the southern hemisphere to experience summer? A. Earth's north pole is tilted toward the Sun. B. Earth's axis and its equator are at different angles. C. Earth's axis and its orbit plane are at different angles. D. Earth's south pole is tilted toward the Sun.
Answer:
D
Explanation:
Answer:D
Explanation:
What were the sources of genetic variation in the population?
Answer:That is, the fraction 48 can be converted to decimal by dividing 4 by 8 . It can be converted to percent by multiplying the3 this is kne f3rcdwecdecfefvrgbvgrbv
Explanation:
and this is sound nba moruf nba mdidd
This makes a water molecule a ___ which allows for other water molecules to "stick" together
A . non-polar molecule
B. ionic molecule
C. polar molecule
Answer:
Polar molecule
Explanation:
<3
which two statements describe disadvantages of selective breeding? this is my 5th time asking please help me.
Answer:
A and C
Explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
pollute groundwater
Explanation:
Some areas of the world suffer from increased air pollution because they are surrounded by mountains which can trap
warm air above cold air during certain times of the year. What is this known as?
a. A temperature inversion
b. A grasshopper effect
c. Buffer zones
d. AVOC cloud
e.Industrial Ozone smog
What are the 3 main ways to creating more sustainable energy paths?
Answer:
Sustainable energy requires a balanced composition between energy security, economic development, and environmental protection [5]. It encompasses energy systems, which are based on three core dimensions: energy security, social equity, and environmental impact mitigation
Explanation:
What is human fetal development? I need simple definition
Answer:
Fetal development is when many of it's organs become fully developed.
6. What is the relationship between amino acids, and proteins,
and DNA?
Trace the pathway of blood flow beginning with superior and inferior vena cava. Also, indicate what
kind of blood is contained in each part. (no links or I'll report
Answer:
look in the photo online it shows hope it helps
Explanation:
where does respiration take place?
Answer:
Mitochondria
Example:
Respiration takes place in the mitochondria of cell in the presence of oxygen which is called aerobic respiration.
(HELP ME PLEASE!!)
Which trait would be passed on from a parent to its offspring because of natural selection?
A)one leg that is shorter than the other
B)lighter fur from repeated sun exposure
C)longer legs that avoid predators
D)bulky muscles from working out
Answer:
I think the answer will be C longer legs that avoid predators
Explanation:
This is because the long legs are natural
Answer:
C)longer legs that avoid predators
Explanation:
As, these traits of having long legs is for avoiding the predators and is the natural for them so it would pass from a parent to its offspring for its protection which is the natural selection.
How many chromosomes do people with DMD have?
Answer:
I think it's two x chromosomes.
Which of the following is a disadvantage of asexual reproduction?
3. What does natural selection favor?
O genotypes
O beneficial traits
O all offspring
O extreme phenotypes
Answer:
beneficial traits
Explanation:
Having beneficial traits leads to being more likely to survive and reproduce, which is the goal of natural selection and survival.
Answer:
I hope this helps.
Explanation:
*HELP ASAP* There are multiple lines of evidence that provide support for common ancestry and evolution. Write 3-4 paragraphs describing at least three of them in detail. Provide at least one example for each line of evidence.
Answer:
Determining a substance's physical or chemical identity. What are the two main requirements for identification? The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.
Answer:
The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.
Explanation:
16
Type the correct answer in the box.
genetic possibilities from independent assortment of its single gamete.
An organism with five pairs of chromosomes can have
A diploid organism with five pairs of chromosomes can have 2^5 = 32 possible gamete combinations. It is due to random assortment.
Gamete combinations and random assortmentA gamete is a germinal cell, which contains only one set of chromosomes in diploid organisms.
Random assortment refers to the random separation of homo-logous chromosomes during meiosis.
The random assortment is known to increase genetic variation by increasing the number of possible genetic combinations.
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Please anyone help please help ASAP ASAP please please help
Answer:
A
Explanation:
the 1st one is the answer
Research the differences that exist between mitosis and binary fission. Identify at least one difference, and explain why it is significant.
The difference between mitosis and binary fission is that while mitosis occurs in eukaryotes and binary fission occurs in prokaryotes.
Mitosis and binary fission are forms of cell division that duplicate cells. Binary fission occurs in prokaryotes which are the cells that do not contain a nucleus.
On the other hand, mitosis occurs among the eukaryotes which are the cells that have a nucleus. Also, binary fission doesn't include spindle formation in its process which makes it faster than mitosis.
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Which of the following statements is false?
A. Disruptions in an ecosystem are normal and natural changes.
B. Disruptions in an ecosystem are only caused by tornadoes, hurricanes, and floods.
C. Disruptions in an ecosystem are caused by both human activity and environmental disturbances.
D. Ecosystems are complex, interactive systems that include both biotic and abiotic components of the environment.
Answer:B
Explanation:
Common sense ♀️
Answer:
c
Explanation:
humans can also disrupt the ecosystem as well as natural causes
Which of the following would NOT be considered growth and development?
A. a single cell getting larger before dividing
B. an egg becoming multiple cells
C. an organism going through multiple stages of life
D. group of molecules that are attracted together to form a larger sheet
Group of molecules that are attracted together to form a larger sheet is not considered as growth and development. The correct option is D.
What is growth and development?Development is defined as an increase in psychomotor capacity, while growth is defined as an irreversible constant increase in size.
Both processes are heavily influenced by genetic, dietary, and environmental factors.
Growth is defined as a person's development in weight, age, size, and habits.
Development, on the other hand, is defined as the process by which a person's growth is visible in relation to physical, environmental, and social factors.
Growth simply means an increase in the size and mass of a specific organism over time.
Development is defined as the method by which a specific organism transforms itself from a solitary cell to a more complex multicellular organism.
Thus, the correct option is D.
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Energy flows into the producers of an ecosystem through the process of
Decomposition
Cellular respiration
Carbon fixation
Photosynthesis
Answer:
by the process of photosynthesis
Which of the following is NOT true of a reaction that breaks a bond?
A. It creates low-energy products
B. It is what happens in cellular respiration
C. It is an endergonic reaction
Answer:
C
Explanation:
Endergonic reactions use energy to build bonds
Exergonic reactions release energy through breaking bonds
C. It is an endergonic reaction.
Endergonic v/s Exergonic:
In the exergonic reaction, the reactants are at a higher free energy level than the products (reaction goes energetically downhill) while In the endergonic reaction reaction, the reactants are at a lower free energy level than the products (reaction goes energetically uphill). Endergonic reactions use energy to build bonds while Exergonic reactions release energy through breaking bonds.When a bond breaks, it creates low-energy products.In cellular respiration, breaking of bond happens.Therefore, the statement which is NOT true for a reaction that breaks a bond is option C.
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Which element listed in the table above has an atomic mass of 79?
Answer: selenium Hope it helps
Explanation:
During meiosis, which of the following allows for variations in alleles in the gametes
formed?
A) homologous chromosomes stay together
B)chromosome crossover
C)daughter cells identical to parent cells
D)Genetic drift
Answer: B
Explanation:
Help multiple choice
Which of the following describes a characteristie of blood viscosity
a. Blood viscosity describes how red your blood is.
b. Blood viscosity describes how thick or thin your blood is,
Blood viscosity describes amount of oxyven found in your blood,
d. Blood viscosity describes the amount of pressure your blood places on the walls of your vions and
arteries,