n a classic example of this type of trait: the arms of a human, the legs of a cat, the flippers of a whale, and the wings of a bat, all have similar structures as seen in the picture above. Each of the structures serves a unique purpose for the different organisms and their lifestyles. However the similarity between the structures implies that they were derived from a common ancestor. What kind of trait is being described in this example
Answer:
Scientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic. In general, organisms that share similar physical features and genomes tend to be more closely related than those that do not. Such features that overlap both morphologically (in form) and genetically are referred to as homologous structures; they stem from developmental similarities that are based on evolution. For example, the bones in the wings of bats and birds have homologous structures (Figure 1).
Figure 1. Bat and bird wings are homologous structures, indicating that bats and birds share a common evolutionary past. (credit a: modification of work by Steve Hillebrand, USFWS; credit b: modification of work by U.S. DOI BLM)
Notice it is not simply a single bone, but rather a grouping of several bones arranged in a similar way. The more complex the feature, the more likely any kind of overlap is due to a common evolutionary past. Imagine two people from different countries both inventing a car with all the same parts and in exactly the same arrangement without any previous or shared knowledge. That outcome would be highly improbable. However, if two people both invented a hammer, we can reasonably conclude that both could have the original idea without the help of the other. The same relationship between complexity and shared evolutionary history is true for homologous structures in organisms.
Physiologists work to understand how the body operates under normal conditions and how the body adapts to survive under unstable conditions.
Question 3 options:
True
False
Plz
what is the value y ？
Answer:
[tex] {3}^{y} \times {3}^{8} = {3}^{12} \\ {3}^{y + 8} = {3}^{12} \\ y + 8 = 12 \\ y = 12 - 8 \\ y = 4 \\ thank \: you[/tex]
Disease-causing bacteria need oxygen to survive. True or False
I WILL GIVE BRAINLIEST
Describe how the structure of xylem is adapted to it's function.
Answer:
The cells that make up the xylem are adapted to their function: They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.
Hope it helps you.Can the world run out of carbon? no
COMPLETE
Explain why you answered the way you did.
RETRY
NEED ASAP
Why is Dr. Elizabeth Cochran’s sensor important to earthquake research? How can it help develop an earthquake warning system?
Answer:
According to Cochran, these sensors become temporary seismic stations, enabling scientists to automatically monitor and retrieve data from six months to a year after an earthquake. Therefore, scientist can detect earthquake through information collected from the last earthquake.
Explanation:
Answer:
Dr. Cochran has invented a device to use on any laptop to detect an earthquake. This device can warn people about earthquakes immediately. These detectors are inexpensive and work on any computer. Scientists can create more of these sensors and distribute them to all residents in earthquake-prone areas. The sensors would let people know about earthquakes so they could go somewhere safe without wasting time.
Explanation:
Edmentum answer (:
Where does the wise person place his or her faith.
science or the Bible?
Answer:
Bible.
Explanation:
If this person was wise, they would turn to the Bible.
Answer:
Bible
Explanation:
Your faith goes into the bible because faith is about trusting and believing in yourself and believing that you can do whatever you put your mind to such as chasing a dream just like as God has faith in us because he knows that we can do anything we put our mind our faith in mine too
Disadvantages of asexual reproduction are _____.
it does not lead to genetic variation in a population.
the species may only be suited to one habitat.
disease may affect all the individuals in a population.
Answer:
The major disadvantages of asexual reproduction are: Lack of diversity. Since the offsprings are genetically identical to the parent they are more susceptible to the same diseases and nutrient deficiencies as the parent. All the negative mutations persist for generations.
Explanation:
Since the offsprings are genetically identical to the parent they are more susceptible to the same diseases and nutrient deficiencies as the parent. All the negative mutations persist for generations.
what could a human living millions of years ago have in common
What are your options, kid?
cual es el recorrido del aire al inspirar?
Questions:
1.
What is the goal of the Delta tunnels project?
Answer:
California Water Fix and Eco Restore, formerly known as the Bay Delta Conservation Plan, is a $15 billion plan proposed by Governor Jerry Brown and the California Department of Water Resources to build two large, four-story tall tunnels to carry fresh water from the Sacramento River under the Sacramento-San Joaquin
Explanation:
he plan, now called the Delta Conveyance Project, is an attempt to shore up the reliability of critically needed water deliveries to the south state while improving the fragile ecosystem of the Sacramento-San Joaquin Delta
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What is the name of tissue A
Answer:
connective tissue.
Hope it helps you.Hi,
Tissue A is connective tissue. It helps in bonding of microcells in all tissues.
Hope it helps you...
A skateboarder drops in off the top of one side of the half pipe shown below. She does not push off and starts from rest. She stands straight as she skates down one side and up the other. She expected to get to the top of other side but didn’t make it. The skateboarder recalled the law of conservation of energy from science and didn’t understand why she didn’t make it to the top of the other side.
Which of the following actions would help the skater reach the top of the other side of the half pipe?
Lubricate the wheels in order to reduce frictional force that is causing the skateboard to lose velocity and bend down while skating off the side and bottom of the half pipe.
Hold a weight in order to increase her mass and cause the skateboard to move with a greater velocity down the half pipe.
Sit on the skateboard in order to lower her center of mass and increase the potential energy of the skateboard.
Push off at the bottom of the half pipe in order to replace lost energy and add kinetic energy to the skateboard.
The actions that will help the skater reach the top of the other side of the half pipe is to lubricate the wheels in order to reduce frictional force that is causing the skateboard to lose velocity and bend down while skating off the side and bottom of the half pipe.
The law of conservation of energy from science states that energy can neither be created nor destroyed but can be transformed from one form to another.
The skateboarder couldn't make it to the top of one side of the half pipe because the kinetic energy that was generated was converted to heat energy through friction.
As the heat energy is lost to the surrounding environment, the skateboard loses velocity.
Bending down by the skateboarder will provide additional energy to make up for the lost energy.
Therefore, in order for the skateboarder to reach the top of the other side of the half pipe, she has to lubricate the wheels in order to reduce frictional force that is causing her to lose velocity and bend down while skating off the side and bottom of the half pipe.
Learn more here:
https://brainly.com/question/1299704
Answer:
Lubricate the wheels in order to reduce frictional force that is causing the skateboard to lose velocity and bend down while skating off the side and bottom of the half pipe.
Explanation:
Got the answer right on a quiz and reducing frictional force leads to many other contributing factors that makes the skateboarder reach the other side of the half pipe.
What is the equation for the average?
NAME OR PAS
an, carefully.
A. Average = (sum of target data values) / (sum of all data values)
B. Average = (sum of all data values) / (total number of data values)
C. Average = (total number of data values)/ (sum of all data values)
D. Average = (sum of target data values)/ (total number of data values)
100 rond
Explanation:
Option B is the answer.
hope it helps.
the scientific name of frog is Rana trigina. Is it correct?
Answer:
Yes,the scientific name of frog is Rana trigina.
Answer:
It is correct but it is also called Anura
I think it will help you
What is the WIFI password for Daniel Boone High School?
Answer:
Id-k............. y?
....Explanation:
WHAT IS VACUOLE MEANING
Answer:
a space or vesicle within the cytoplasm of a cell.
the bond which is found between water molecules
Answer:
Polar covalent bond
What if anything on Mars can be used as a potential energy source? How does this compare to the various energy sources found on Earth?
Answer:
http://large.stanford.edu/courses/2017/ph240/black1/
Explanation:
Bacillus anthracis is the causative agent of anthrax.
a.True
b. False
which part of the body regulates sex hormones
Answer:
The main glands that produce sex hormones are the adrenal glands and the gonads, which include the ovaries in females and testes in males. Sex hormones are also important for a range of bodily functions and a person's general health.
Explanation:
adrenal glands and the gonqds pqrt of the body regulate sex hormones .
what are 3 characteristics that adenoviruses, tv virus, and papilloma viruses have in common
Answer:
The three characteristics that adenoviruses, T7 viruses and papillomaviruses have in common include the following:
1. The three types of viruses possess icosahedral structures.
2. The viruses possess DNA.
3. Their DNA is double stranded.
Adenoviruses are naked (non enveloped) icosahedral nucleocapsid viruses, which has double stranded DNA genome. They are specific to vertebrate hosts and cause different types of diseases. T7 virus is a bacteriophage that infect bacterial cells. Most strain of E.coli are susceptible to this virus. Humanpapilloma viruses are small,naked icosahedral viruses which infect higher vertebrates.
nitrogen fixing organisms in aquatic ecosystems are a. plants b. large fish c. zooplankton d. cyanobacteria
Answer:
Cyanobacteria
Explanation:
Which term defines a well tested,scientifically supported statement that describes how something happens
Answer:
The term would be: Theory
Explanation:
A theory is a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained. It is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts.
Answer:
theory
Explanation:
Use the following Karyotype to identify any genetic abnormalities in the subject.
A. Inversion mutation
B. Trisomy 21
C. Trisomy 18
D. No abnormalities
Answer:
D:No abnormalities ...... .............. sorry the words were not enough.......
define term photoautotrophs
Answer:
Photoautotroph are organisms that carry out photosynthesis. Using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.
Answer:
Hᴇʀᴇ ɪs ᴀɴsᴡᴇʀ
Explanation:
Photoautotroph are organisms that carry out photosynthesis. Using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration. - Mɪsʜᴀɴ Mᴀɢᴀʀ
Hᴏᴘᴇ ɪᴛ ʜᴇʟᴘ ʏᴏᴜシ︎
Bacillus anthracis is the causative agent of anthrax.
a. True
b. False
True or False? If the results of an experiment do not support your hypothesis, you did something wrong.
Answer:
false
Explanation:
a hypothesis is just an estimation and not the exact answer so it's possible for the experiment results not to match it.
Answer:
false
Explanation:
An hypothesis is an estimation and not an exact answer
Trout (fish) raised in cold water weigh more than trout raised in warm
wator.
What is the independent variable and the dependent variable
O Water temperature
O Weight of trout
O Amount of food