Reproductive isolation occurs when
A- some catastrophic event greatly reduces the size of the population
B- The gene pool of different populations have become very diversified
C-members of different populations can no longer meet successfully
D-small numbers of individual moves and starts in new population
Answer:
The correct answer is - C. members of different populations can no longer meet successfully.
Explanation:
Reproductive isolation is the process that occurs when two or more species or populations are not able to interbreed. The mechanisms or properties that are used to preventing individuals of separate species from mating called Reproductive isolation mechanisms.
The different barriers can cause this reproductive isolation such as different mating seasons. These barriers could be behavioral or temporal or ecological isolations.
What aspect of chaparral shrubs is both a part of their natural defenses and the reason many are popular in cooking?
Answer:
The answer is "aromatic oils".
Explanation:
Aromatherapy is indeed the integral therapy used only to support health and very well through the natural ingredients of plants. It's sometimes referred to as essential oil treatment. Aromatherapy top point aromatic oils in medicine to enhance body, mind, and mental fitness. This also improves fitness, both physical and emotional, that's why the Aromatic oils are also the appearance in chaparral shrubs both components of their natural protection but are popular in cooking for several reasons.
The diagram above represents the rock cycle. According to this diagram, metamorphic rock is formed by
Answer:
heat and/or pressure
Explanation:
If you can, visit a ranch! It would be best if you can create this project from what you experience on a ranch. If that is not possible, you can do your research on the Web.
If you are on or near a ranch, get permission to visit and spend time on the land, asking questions of the rancher(s) who run it. Some questions you will want to ask include:
What is the location and size of the ranch?
What kinds of ranch animals are there?
What kinds of wildlife are there?
How/where do they interact (water supplies, pastures, woods)?
What are the benefits to the land and water of the animals interacting?
How do the animals get along?
What predator problems do the ranchers face?
How do they protect from predators?
What fencing issues with wildlife are there?
What are the migration patterns of the animals?
What other things do the ranchers do with regard to wildlife management?
The finished product can be a written report (should be at least three pages, double-spaced, and include photos), or a presentation or video (make it at least four minutes long). If you can, take photos or videos (with permission).
If you are not near a ranch, do your research through videos and articles on the Web. Be sure to fully cite all your sources, and be sure that you have permission to use the information, photos, or videos. If you have personal experience with wildlife on ranchlands, add it to your report or presentation. Make it interesting, visual, and focused on how ranches and wildlife benefit each other, and include details of best-management practices that you encounter. ( DOES NOT NEED TO BE THREE PAGES, JUST ANSWER THE QUESTIONS IN A PARAGRAPH FORM PLZZZZ)
Answer:
The feasibility and profitability of game ranching have been amply demonstrated by a number of studies. The rationale behind advocating game ranching in Africa is that conditions in many parts of' the continent, whether resulting from inadequate rainfall or presence of certain disease organisms' are not appropriate for production of exotic cattle and other domestic stocks. Indigenous wild animal species on the other hand have evolved in the African ecosystem and are better adapted to the prevailing conditions and should therefore be more productive.
Game ranching is currently most developed in southern Africa (particularly South Africa Namibia and Zimbabwe), although a private game ranch, the Galana Ranch, was established in Kenya in the 1970s (King and Heath, 1975; Thresher, 1980). The ranch initially focused on three species: the fringe eared oryx, Oryx beisa callotis, the African buffalo and the eland. Reported advantages of the eland over the Boran cattle included much lower water requirement, faster breeding and growth, earlier maturity and ability to put on weight in grazing conditions under which the Boran cattle began to lose weight and approximately 14 % higher dressing out weight. In addition to these biological and physiological advantages a cost-benefit analysis of maintaining a breeding herd of 11,000 oryx and 5000 Boran on the ranch showed clearly that the financial returns on the oryx was far superior to that of cattle (Thresher, 1980).
Explanation:
I am not interested
Numerous studies have amply shown that game ranching is both feasible and profitable.
What is Argument?
The argument in favor of game ranching in Africa is that the climate in many regions of the continent, whether as a result of insufficient rainfall or the presence of specific disease organisms, is insufficient for the breeding of exotic cattle and other domestic species.
On the other hand, native wild animal species have evolved in the African ecosystem and are better adapted to the current conditions; as a result, they should be more productive.
Although a private game ranch, the Galana Ranch, was founded in Kenya in the 1970s (King and Heath, 1975; Thresher, 1980), southern Africa, particularly South Africa, Namibia, and Zimbabwe, currently has the most developed game ranching industry.
Therefore, Numerous studies have amply shown that game ranching is both feasible and profitable.
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Why is the vascular cambium important?
It absorbs oxygen.
It creates new bark.
It provides nutrients.
It allows the tree to stand erect.
heres 15 points
The following diagram represents processes and products in the carbon cycle. In this diagram of the carbon cycle, Location A is the process by which carbon in the atmosphere is converted by green plants into food. © 2011 FLVS What process is occurring at Location A? Combustion Photosynthesis Respiration Weathering
Answer:
It should be B , Photosynthesis.
Explanation:
The question says something about the process by which carbon in the atmosphere is converted by green plants into food which sounds like Photosynthesis.
So sorry If it's wrong
Answer: Respiration
Explanation: took the test
In the passage, the author explains that biodiversity allows species to have different choices for survival and strengthens an ecosystem by ensuring lots of options for hungry animals. Based on the evidence, what conclusion can be made
Answer:
The correct answer is - biodiversity is a good thing.
Explanation:
Biodiversity is the variety of types of life including all organisms present on earth or if related to a specific area then the ecosystem. Biodiversity helps in boosting the productivity of the ecosystem and each organism of the ecosystem plays an essential role in it.
The higher the biodiversity more chances of survival of organisms. Biodiversity provides oxygen, water and soil that helps to strengthen the ecosystem.
If you start with 60 chromosomes and end with 30 chromosomes
A. Neither
B. Mitosis
C. Meiosis
D. Both
Answer:
If a cell has 15 pairs of chromosomes (n = 15), it has 30 chromosomes (2n = 30). At the end of mitosis, the two daughter cells will be exact ...
Explanation:
CORRECT me if I'm wrong.
#Carryonlearninh
If at start there are 60 chromosomes and ending with 30 chromosomes, then the process is meiosis. The correct option is C.
What is meiosis?Meiosis is a type of cell division that occurs in reproducing organisms and results in a reduction in the number of chromosomes in gametes (or egg and sperm).
Body (or somatic) cells in humans are diploid, with two sets of chromosomes (one from each parent).
Meiosis is a type of cell division that produces four gamete cells while reducing the number of chromosomes in the parent cell by half.
This process is necessary for the production of egg and sperm cells for reproduction.
Without meiosis, the number of chromosomes in a species does not remain constant across generations and is duplicated every time after reproduction.
Without meiosis, an organism cannot reproduce effectively through reproduction.
As, meiosis is equational division, and the chromosome number is also getting reduced to half, it can be meiosis.
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HOW DO THE OCEANS CURRENTS AFFECT CLIMATE
Answer:
Explanation:
Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface.
Which type of reproduction involves only one parent?
Asexual
Cytokinesis
Meiosis
Sexual
Answer:
Asexual Reproduction
Explanation:
because it involves one parent
Answer:
asexual my dudes
Explanation:
do you ever get so mad that you just give up? thats me in math
How can marine mammals survive underwater for so long?
Answer:
Special properties of an oxygen-binding protein in the muscles of marine mammals, such as seals, whales and dolphins, are the reason these animals can hold their breath underwater for long periods of time, according to a new study. ... In fact, the amount was so high in the muscle that it almost looked black in color.
Explanation:
Answer:
Special properties of an oxygen-binding protein in the muscles of marine mammals, such as seals, whales and dolphins, are the reason these animals can hold their breath underwater for long periods of time, according to a new study. ... In fact, the amount was so high in the muscle that it almost looked black in color.
Explanation:
This is the site that I got the info from, just so you know. I hope this helps!
Scientists Discover How Marine Mammals Hold Their Breath ...https://blogs.voanews.com › science-world › 2013/06/14
the market price of a pendrive is Rs.650. if a discount 10% is allowed, find the selling price of the pendrive
help will give brainliest
Answer:
B
Explanation:
Describe the main function of each biomolecule and then give an example for each.
Lipid -
Carbohydrates -
Nucleic Acids -
Protein -
Describe the main function of each biomolecule and then give an example for each.
Lipid -
Carbohydrates -
Nucleic Acids -
Protein -
Answer:✰Lipids↷
Precursors of hormoneIt helps in digestionIt provides store of energyIt provides metabolic fuelCarbohydrates✰↷
Main source of energySpare protein from being burned so it can be used to build and repairDietary fiber can help lower blood cholesterol✰Nucleic Acids↷
Information storage (DNA)protein synthesis (RNA)Energy transfers (ATP and NAD)Protein✰↷
The main function of protein is to repair the bodies Tissues and cells.It's used to make enzymes & HormonesIt's mainly known for it's contribution towards building muscle as well as the repair of bone , cartilage & skin.Hope it Helps
-------☆ﾟ.･｡ﾟᵴɒƙυᴚᴀ_ƨȶäᴎ❀
Distinguish between tissue fluid and lymph
Answer:
Fluid found in the spaces around the cells. It comes from substances that leak out of blood capillaries. As new tissue fluid is made, it replaces older fluid, which drains towards lymph vessels. When it enters the lymph vessels, it is called lymph.
Explanation:
Which level of classification contains orders but is smaller than phylum?
kingdom
family
class
species
Answer:
answer is C Class
Explanation:
Class is the level of classification contains orders but is smaller than phylum.
What is biological hierarchy?Biological hierarchy refers to the organization of living organisms into a series of levels, each level being more complex than the one below it. The biological hierarchy begins with the smallest unit of life, which is the cell, and progresses upward to include tissues, organs, organ systems, organisms, populations, communities, ecosystems, and ultimately the biosphere.
Each level of the biological hierarchy is characterized by different properties and interactions. For example, cells are the basic unit of life and perform all the essential functions of an organism. Tissues are groups of cells that work together to perform a specific function, such as muscle tissue, which is responsible for movement. Organs are structures made up of tissues that work together to perform a specific function, such as the heart, which pumps blood throughout the body.
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Two humans mate who are heterozygous for earlobe shape where attached earlobes (A) are dominant to free earlobes (a), and earwax quality where dry earwax (e) is recessive to wet earwax (E ). What is the probability that their first child will have dry earwax and attached earlobes
Answer:
3/16
Explanation:
This question involves two different genes coding for earlobe shape and earwax quality. The alleles for attached earlobes (A) and wet earwax (E) are dominant over the alleles for free earlobes (a) and dry earwax (e).
According to this question, two humans mate who are heterozygous for both genes i.e. AaEe × AeEe. Each parent will produce the following gametes: AE, Ae, aE, ae.
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
* Attached earlobe, wet earwax (A_E_) = 9/16
* Attached earlobe, dry earwax (A_ee) = 3/16
* Free earlobe, wet earwax (aaE_) = 3/16
* Free earlobe, dry earwax (aaee) = 1/16
Hence, the probability of these parents having their first child with dry earwax (ee) and attached earlobes (A_) i.e. genotype A_ee is 3/16.
who created the naming system
Answer:
Carl Linnaeus
Explanation:
Carl Linnaeus
Explanation:Answer:
Carl Linnaeus
In truth, Linnaeus adopted their work and is responsible for the formal introduction of the naming system into the scientific world through his 1735 publication Systema Naturae which listed around 10,000 species consisting of 6,000 plants and 4,236 animals.
good luck!
inorganic chemicals definition
which of the following are fossil fuels (choose all that apply)
•natural gas
•petroleum
•coal
•ethanol
Answer:
Natural Gas
Petroleum
Coal
Explanation:
1) Ethanol is not a fossil fuel
2) 94% of ethanol is produced from the starch in corn grain
3) fossil fuel definition: a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
4) fossil fuels are usually found in the earth's crust... not made from corn grain
Answer:
•natural gas
•petroleum
•coal
Explanation:
Gaseous emissions are released from the exhausts of cars and trucks or anytime fossil fuels are burned.
What makes an organism fit for its environment is any trait that helps it survive the longest, even if it doesn't reproduce.
Answer: A cactus has needles to prevent animals from eating the water out from it.
Explanation:
A graduated cylinder containing 40 mL of water has a total mass of 60 g. A solid object carefully lowered into the graduated cylinder. The level of the water rises to 70 mL. The total mass of the cylinder, water and object is now 95 g what is the mass? volume? and density
Answer:
The correct answer is -
A) 35 g
B)30 mL
C)1.66666666666667g/ml3
Explanation:
Given:
mass of graduated cylinder containing 40 mL = 60 g
volume of water = 40 ml
increase in the level of water = 70 ml
increase in mass = 95
Solution:
A) mass of object -
increased mass - initial mass
90 - 60 = 35 g
B) volume of object
increased volume - initial volume
70 - 40 = 30 mL
C) density d=m/v
d=35/30
d=1.66666666666667
Why is the research on plant material mentioned in the article important to Rohit Karnik’s work on membranes?
Answer: The plant tissues act as a filter to remove harmful bacteria. Rohit Karnik designs membranes used in fraction system.
Explanation: Like wood, these membranes allow water to pass through, but not bacteria. Mr. Karnak might be able to apply the research on the wood to his designs.
Answer:
The plant tissues act as a filter to remove harmful bacteria. Rohit Karnik designs membranes used in filtration systems. Like the wood, these membranes allow water to pass through, but not bacteria. Mr. Karnik might be able to apply the research on the wood to his designs.
Explanation:PLATO
What is Temperature. in your own words but be more detailed about what you say.
Answer:
Hey mate......
Explanation:
This is ur answer.....
--> Temperature is a measure of how hot or cold something.
Temperature is specifically, a measure of the average kinetic energy of the particles in an object, which is a type of energy associated with motion. ... To answer that question, a physical scientist would measure the temperature of the liquid metal.
Hope it helps!
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Organisms are classified as producers or consumers according to the way they *
(1) obtain energy
(2) release wastes
(3) produce offspring
(4) move from place to place
5. On the rock shoreline, how was biodiversity affected by the removal of starfish?
Answer:
When the starfish have been removed experimentally, the mussel populations have expanded rapidly and covered the rocky intertidal shores so exclusively that other species cannot establish themselves.
Explanation:
Sulfuric and nitric acids are ___ pollutants that form acid precipitation.
Answer:
ozone is bad because it can damage living tissue ... Sulfuric and nitric acids are ___ pollutants that form acid precipitation. secondary.
Explain how a single fertilized egg can develop into a multicellular organism.
Answer:
The fertilized egg goes through mitosis to create many identical copies of the original cell then those cells will differentiate into specialized cells of different tissues.
Explanation:
A building project caused many small mammals and insects to leave an area. What effect could this have on plant reproduction in that area?
a. less pollination and less seed dispersal
b. more pollination and more seed dispersal
c. more fertilization but less seed dispersal
d. less fertilization and more seed dispersal
A geneticist is mapping the chromosomes of the newly captured gremlin. Stripe is heterozygous for three linked genes with alleles Bb, Ee, and Hh that determine if gremlins have biting teeth (B), are evil (E), and have hair (H). In order to determine if the three genes are linked, a standard testcross was done, and the 1000 offspring had the following genotypes: 48 bb ee Hh 36 Bb ee hh 400 Bb ee Hh 4 Bb Ee Hh 426 bb Ee hh 46 Bb Ee hh 38 bb Ee Hh 2 bb ee hh What is the recombination frequency between genes E and B
Answer:
The recombination frequency between genes E and B is 0.1 = 10%
Explanation:
Available data:
Cross: BbEeHh x bbeehh
F1) 1000 individuals in total
48 bb ee Hh 36 Bb ee hh 400 Bb ee Hh 4 Bb Ee Hh 426 bb Ee hh 46 Bb Ee hh 38 bb Ee Hh 2 bb ee hhTo know if two genes are linked, we must observe the progeny distribution. In a tri-hybrid cross, If individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1:1:1:1:1. If we observe a different distribution, that is that phenotypes appear in different proportions, we can assume that genes are linked in the heterozygote parent.
In the present example, the phenotypic ratio shows different proportions than the expected ones if they were not linked.
We can recognize the parental gametes in the descendants because their phenotypes are the most frequent, while the double recombinants are the less frequent. And simple recombinant gametes produced by the cross, which frequencies are intermediate.
Parentals:
400 Bb ee Hh 426 bb Ee hhDouble recombinants:
4 Bb Ee Hh2 bb ee hhSimple recombinant
48 bb ee Hh 36 Bb ee hh 46 Bb Ee hh 38 bb Ee HhComparing the parental and the double recombinant we will realize that they only change in the position of the alleles E/e. This suggests that the position of the gene E is in the middle of the other two genes, B and H, because in a double recombinant only the central gene changes position in the chromatid.
B------E------H
Now we will call Region I to the area between B and E and Region II to the area between E and H.
Once established the order of the genes we can calculate distances between them, and we will do it from the central gene to the genes on each side. First We will calculate the recombination frequencies, and we will do it by region. We will call P1 to the recombination frequency between B and E genes, and P2 to the recombination frequency between E and H.
P1 = (R + DR) / N
P2 = (R + DR)/ N
Where: R is the number of recombinants in each region, DR is the number of double recombinants in each region, and N is the total number of individuals. To calculate the recombination frequency, we have to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.
So:
• P1 = (R + DR) / N = 48 + 46 + 4 + 2 / 1000 = 100/1000 = 0.1
• P2 = (R + DR)/ N = 36 + 38 + 4 + 2 / 1000 = 80/1000= 0.08
Now, to calculate the recombination frequency between the two extreme genes, B and H, we can just perform addition or a sum:
P1 + P2 = Pt
0.1 + 0.08 = Pt
0.18 = Pt
The genetic distance will result from multiplying that frequency by 100 and expressing it in map units (MU). One centiMorgan (cM) equals one map unit (MU). The map unit is the distance between the pair of genes for which one of every 100 meiotic products results in a recombinant product.
• P1 = 0.1 x 100 = 10%
• P2 = 0.08 x 100 = 8%
• Pt = 0.18 x 100 = 18 %