Answer:
sympatric speciation
Explanation:
Different sympatric species have the same closest ancestor and live in the same area but inhabiting different niches.
The steps for sympatric speciation are:
An ancestral species inhabit a geographic area.With time, different populations of the same species occupy different niches or microhabitats in this general area. As the microhabitats are different, they have different environmental pressures that are acting on each population.These pressures lead to the origin of differences between groups, which need to adapt to each environmentEach population suffers genetic changes due to environmental conditions. These changes are inheritable.With time, these differences drive to the final complete divergence of populations, becoming different species and reproductively isolated.In sympatric speciation, the interruption of genetic flow must be fast, and there must be differences in niches so no species can compete and displace the other species. Speciation occurs in the same distribution area of the original species. The new species originate in a place with no physical barriers but different environmental pressures.
In the exposed example,
The introduced Cichlid fishes 200 years ago → Original species and the common ancestor between the new derivated speciesThe lake → general geographic areaThe main lake and the streams → Microhabitats or niches with different pressures eachThe groups are splitting into two genetically and physically different types of fishes. They do not mate. There is no genetic flow between groups. → Speciation process.how might abnormalities in an animal’s anatomy or Physiology have a negative impact on its health and well-being
lab activity blood type pedigree mystery Joseph and rita
Animals use energy from their food to do all of the following , except
A. move
B. complete photosynthesis
C. repair their bodies
D. grow
how do the kidneys maintain homeostasis in the body?
PLZ I NEED HELP ASAP
where was the first European church located
corinth
thessalonica
colosse
Philippi
Answer: Philippi
Explanation:
Trust
12. Individuals with Type O blood are able to produce both Anti-A and Anti-B antibodies, while individuals with Type AB blood produce neither of these antibodies. Explain why this is the case. How does this relate to the idea that people with Type AB blood are often referred to as universal recipients for transfusions
Answer: Blood group O individuals are able to produce Anti- A and Anti- B and are often referred to as UNIVERSAL DONORS, while blood group AB individuals produces none and are often referred to as UNIVERSAL RECIPIENTS
Explanation:
Two antigens, type A and type B, occur on the surfaces of the red blood cells in a large proportion of human beings. These antigens are referred to as agglutinogens because they often cause blood cell agglutination during blood transfusion. Because of the way these antigens are inherited, people may have neither of them on their cells , they may have one or they may have both simultaneously.
When type A antigen and type B antigen is not present in an individuals reb blood cell as seen in blood group O, antibodies known as Anti-A and Anti- B develops in the plasma. This is because small amounts of type A and type B antigens enter the body through food, bacteria and other ways and they initiate the development of anti A and Anti- B antibodies in their plasma.
Furthermore, individuals with blood type AB has antigen A and B on their red blood cells and therefore do not develop antibodies A and B in their plasma. This makes them universal recipient as their blood do not discriminate any ABO blood group during blood transfusion.
In summer squash, white fruit (H) is dominant over yellow (h), and the flattened disc-shaped fruit (D) is dominant over the spherical fruit (d). Examine this cross: HHdd x hhRD, and answer the following questions. (You can use a Punnett square to answer the questions, but you do not need to include it on this worksheet. If you do, it will not be graded.)
a) Does this cross represent a monohybrid cross or a dihybrid cross?
b) What percentage of the offspring from this cross are expected to have the HHDD genotype?
c) What percentage of the offspring from this cross are expected to have the hhDD genotype?
d) What percentage of the offspring from this cross are expected to have the HhDd genotype?
e) What percentage of the offspring from this cross are expected to produce white and disc-shaped fruits?
f) What percentage of the offspring from this cross are expected to produce white and spherical fruits?
g) What percentage of the offspring from this cross are expected to produce yellow and disc-shaped?
Answer:
a. It is a dihybrid cross
b. 0%
c. 0%
d. 0%
e. 100%
f. 0%
g. 0%
Note: Answers are given assuming that hhRD = hhDD
Explanation:
a. The cross, HHdd x hhDD is a dihybrid cross involving two traits: fruit colour and fruit shape
2. Gametes produced in the cross are given below:
for HHdd= Hd and Hd
For hhDD = hD and hD
Offspring produced in the cross:
All HhDd, which represents white and the flattened disc-shaped fruit white since They are both dominant characters.
b. Percentage of the offspring from this cross expected to have the HHDD genotype = 0%
c. Percentage of the offspring from this cros expected to have the hhDD genotype = 0%
d. Percentage of the offspring from this cross expected to have the HhDd genotype = 0%
e. Percentage of the offspring from this cross are expected to produce white and disc-shaped fruits (HHDD or HhDD or HhDd) = 100%
f. Percentage of the offspring from this cross expected to produce white and spherical fruits (HHdd or Hhdd) = 0%
g. Percentage of the offspring from this cross expected to produce yellow and disc-shape (hhDD or hhDd) = 0%
What volume will 1.2 mol of N, occupy at 17°C
and 2.0 atm?
Answer:
14.284
Explanation:
Know parameters from the problem are: the amount of the substance/ gas molecule is 1.20 mol, the Temperature of the gas is 17 Celsius degrees (i.e. 290.15 K [17 Celsius degrees plus 273.15 K]), the pressure exerted on the container by the gas is 2.0 atm.
The unknown ( what you are asked to find) is the volume that the gas would occupy in its container under those conditions above; V=?.
We use the ideal gas equation here; PV=nRT. R in this equation is called the molar gas constant or Ideal has constant. There are many values for R given different circumstances. For the condition of this problem, R's value is 0.08205 L atm/mol K.
Make V the mathematical subject of the equation PV=nRT.
V=(nRT)/P
V=(1.20 mol x 0.08205 L atm per mol per K x 290.15 K)/ 2.0 arm
V= (28.568169 L atm mol per mol per K)/ 2.0 atm
V= 14.284 [(L atm mol K)/(atm mol K) atm mol K is in the numerator and the denominator would be canceled. Leaving only L.
Therefore, V= 14.284 L of N
A red flowered plant (RR) is crossed with a white flowered plant (WW) and produces plants with pink flowers (RW). If two pink flowered plants are crossed, what color offspring could be produced
Answer:
It would be 100 % pink.
Explanation:
Pink and Pink make Pink. Just as Red and White make Pink.
Due to incomplete dominance, when two pink flowered plants are crossed, the color of offspring could be 1Red: 2Pink :1White.
What is incomplete dominance?In some cases it happens that a certain characteristics does not match with either of their parents, rather it shows new traits.For example: snapdragon.When parent generation of red flowered plant (RR) is crossed with a white flowered plant (WW), F1 produces plants with pink flowers (RW). it does not resembles either of their parents.And when F1 was self pollinated: RW x RW, it produces 1 RR: 2RW: 1WW.Hence, the offspring will be 1 Red flowered plant: 2 Pink flowered plant :1 White flowered plant.
To know more about incomplete dominance here
https://brainly.com/question/14053639
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What do motor neurons do? URGENT FOR SCIENCE 20 POINTS!!!!!!!!!!!!!! BRAINLIEST
Answer:
neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements
I think...............
Answer:
"Motor neurons of the spinal cord are part of the central nervous system (CNS) and connect to muscles, glands and organs throughout the body. These neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements."
Explanation:
G o o g l e helped me answer your question, I hope this helps with your science.
Describe how water is recycled from the atmosphere back to the root
Answer:
Explanation:
when the water is in the atmoshere clouds will create and when it falls it rains over plants and etc so it goes into the roots of plants.
List 5 reasons why earth is under populated
Answer:
The earth is unpopulated by natural causes yet many causes in people all over the earth some personal reasons could be do to: infertility, still -born births, misc arriage, and health problems. But as proved and seen today there are many natural causes such as: kill ings, police bru tality , life- threa tening diseases, dome stic viole nce, suic ide, and many things that go unnoticed in communities around us that causes earth to be unpopulated.
Explanation:
Which of the following best describes the role of cells in living organisms
Answer:
l
Explanation:
Why are people who go to strip clubs generally NOT considered to be voyeurs?
Group of answer choices
The nudity of the performers is not complete.
There is no sense that people who go there are doing something frowned on by society.
The performers are consenting to being seen by the audience.
The performers are exhibitionists and it's impossible for someone to simultaneously be an exhibitionist and a voyeur.
Answer:
The performers are consenting to being seen by the audience.
Explanation:
A voyeurist experiences pleasure from observing someone else having sexual relations, undressing, or performing any sexual activity. The voyeurist does not have the person's consent to watch, and they find ways to do it from a distance or with discrepancy. Part of their pleasure is from observing the person without consent, and another part is from observing the person engage in sexual activities. They do not desire to be in a sexual relationship with the observed person; they want to watch.
People who go to strip clubs do not observe from afar and hiding from the performer. They have the consent of the performers, which is the opposite of what attracts a voyeurist.
All blood vessels containing oxygenated blood are colored red EXCEPT for ?
Answer:
deoxygenated blood i think
Explanation:
why should the ureter be less robust than the vas deferens
Answer:
The vas deferens, also called ductus deferens, is part of the male reproductive system of many vertebrates; these ducts transport sperm from the epididymis to the ejaculatory ducts in anticipation of ejaculation. It is a partially coiled tube which exits the abdominal cavity through the inguinal canal.
Explanation:
explain how all the layers of earth are necessary to create life on the surface
Answer:
The layers of Earth provide geologists and geophysicists clues to how Earth formed, the layers that make up other planetary bodies, the source of Earth's resources, and much more.
Explanation:
Hope it helped!
I had a room full of 666 cockroaches which included 24 albinos. These albinos were so scary looking that I squashed them with a heavy piece of metal over and over again until they were a pile of left over exoskeleton and fluid and let the remaining cockroaches breed. The next generation of these horrid little baby cockroaches totaled 13,485. Assuming that the allele for albinism is recessive and we are still in equilibrium, how many recessive alleles are there in the population. (round to the nearest WHOLE number... 1.234 rounds to 2... there is no such thing as .234 of an organism)
Answer:
Number of albino cockroaches = 486 cockroaches
Explanation:
Assuming that the population is in Hardy-Weinberg equilibrium and that albinism is recessive, the Hardy-Weinberg equation is used to determine the frequencies ofnthe different alleles in the population
According to the Hardy-Weinberg equation : p² + 2pq + q² = 1
Also p + q = 1
Where p² is the frequency of cockroaches having similar alleles for the dominant trait;
2pq is the frequency of individuals with the heterozygous allele, while q² is the frequency of the individuals having similar allele the recessive trait, albinism.
q² = 24/666
q² = 0.036
Since, the frequency of albinism in the population 0.036, number of individuals with the recessive allele, that is albino cockroaches in the next generation is obtained by multiplying the frequency with the number of individuals in the next generation.
Number of albino cockroaches = 0.036 × 13485
Number of albino cockroaches = 486 cockroaches
Organisms that produce
Answer:
Autotroph or producers
Explanation:
An organism that produces its own food is a autotroph
What type of pollination creates hybrids?
Answer:
Cross-pollination
Explanation:
3. What is the main cause of acid rain?
*
a. decrease in ozone levels
O b. burning of fossil fuels
c. changes in the atmosphere
O d. changes in the climate
Vocabulary: amino acid, anticodon, codon, gene, messenger RNA, nucleotide, ribosome, RNA, RNA polymerase, transcription, transfer RNA, translation Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Suppose you want to design and build a house. How would you communicate your design plans with the construction crew that would work on the house
Answer:
Provide designs in the written form.
Explanation:
You will communicate with your design plans with the construction crew through designs or layout on the paper which they follow during building of the house. The best way to tell about the designs of your house is to made the design on the paper correctly. This design in the written form helps and guide the workers to build the house just like you wanted to be. Orally telling about the designs sometimes causes mistakes in the building of house so written form is the best way.
Cell homeosyasis virtual lab
Answer:
ok where's the lab and how can i help?
Explanation:
Plz help fast!!!
Which of the following is most likely the reason why there are more long beaked woodpeckers than short-beaked woodpeckers in an environment?
The long-beaked woodpeckers are more attractive to predators.
The long-beaked woodpeckers have more flight stability.
The long-beaked woodpeckers can reach more insects in tree bark.
The long-beaked woodpeckers reproduce in smaller numbers.
Answer:the answer is c
Explanation:as having a longer beak allows the woodpecker to reach more bugs within the tree meaning they can survive and also provide for the offspring with the more insects it can reach
Villi and microvilli help to absorb nutrients in your small intestine.
True
False
Answer:
True
Explanation:
Microvilli: The cells on the villi are packed full of tiny hairlike structures called microvilli. This helps increase the surface of each individual cell, meaning that each cell can absorb more nutrients.
Answer: TRUE
Explanation: Villi are folds on the small intestine lining that increase the surface area to facilitate the absorption of nutrients. Absorptive cells that line the small intestine have microvilli, small projections that increase surface area and aid in the absorption of food.
So, the correct option is 'True'.
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Quick question. I am trying to cite my sources for my biology research project and the website that I used is a rare disease informational center with different topics. For example there is a summary section, a symptoms section etc.... I need to cite my sources however each section has a different publication date because they don’t update the entire article at once. I am currently trying to use an in text citation for the summary because I used a quote from the summary so do I just use the summary publication? But I did use other sections of this website for other parts of my essay so when it comes time to making my bibliography what do I do
Answer:
For your bibliography, you need to put the website but also put the sections you got your examples from. Also, don't forget to put the person who published the summary down as well. Hope this helped
Explanation:
I may be in high school but from time to time I'm in the same situation at school when it comes to things like this.
In Mendel’s experiments, what proportion of the purebred tall and short pea plants when they were fertilized were all tall?
Answer:
the ratio of 3:1
3 Stimuli Plants that adapt to
Answer:
-light
-gravity
-water
If there's a higher concentration of solutes outside of the cell what will happen
Answer:
If there's a higher concentration of solutes outside of the cell (the solution is known as hypotonic solution) then the cell will swell up as the solutes will flow into the water through the process of osmosis. The cell may also swell up & burst (if it's an animal cell).
A squirrel has 40 chromosomes in a somatic cell.
a. How many homologous pairs are found in a diploid cell?
b. How many single chromosomes (unreplicated) are found after the Sphase?
c. How many chromosomes are present in one cell at the end of meiosis II?
d. How many chromatids will be found at the beginning of meiosis I?
e. How many cells will be produced at the end of meiosis II?
f. How many tetrads will form in mitosis?
Answer:
How many homologous pairs are found in a diploid cell? 22 pairs
b. How many single chromosomes (unreplicated) are found after the Sphase? 46 chromosomes
c. How many chromosomes are present in one cell at the end of meiosis II? 15 chromosomes
d. How many chromatids will be found at the beginning of meiosis I? 92 chromatids
e. How many cells will be produced at the end of meiosis II? four
f. How many tetrads will form in mitosis? 23 different tetrads
Explanation:
hope this helps! make me brainest please