Answer:
All the four given factors favored the appearance of trait of larger beak size in the finches population
Explanation:
The following factors led to the evolution of finches with large beak sizes in the following ways -
a) the potential for the finches to reproduce - The finches ability to reproduce helped them acquiring traits that would increase their fitness for survival
b) the existence of genetic variation related to beak size in the population - Gene pool with respect to beak size having genes for large beak size allowed finches to acquire this traits through mating. If there were no genes of large beak size in the gene pool, then this trait would not have appeared ever in the future generation of finches
c) the competition for limited resources - There is a huge possibility that large beaks are useful in acquiring food as compared to other size of beaks and hence, this trait evolved in finches
d) the differential reproductive success of the individuals that survive - Finches with large beak size have better fitness and hence are able to survive and extreme condition. This characteristics of fitness allowed them to evolve
Who was the first person to connect a patient's symptoms to their actual autopsy findings?
In the Animals cladogram, which trait evolved two different times?
have wings.
For example, both
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4.
Think and discuss: What could cause similar traits to eval
Correct question:
In the Animals cladogram, which trait evolved two different times?Think and discuss: What could cause similar traits to evolve independently in different species?You will find the cladogram in the attached files.
Answer:
Bipedalism is the trait that evolved two different timesDifferent organisms in different spaces and times face the need to adapt to a similar environment. They manage to solve a problem from that particular ecological niche by developing the same traits, even when the involved groups are not closely related.Explanation:
Through the process of Convergent evolution, two phylogenetically independent organisms get to develop similar structures. These structures make possible a better performance in a similar environment. These organisms are morphologically or ethologically similar in their whole bodies or just in parts.
Convergent evolution occurs in different phylogenetic branches independently from each other. It results from the need for different organisms to adapt to a similar environment and to solve a problem from that particular ecological niche. Ecological pressures acting on them might be similar, modeling the organisms´ phenotype. Each evolutive branch ends by developing the same structures, which they both find effective in their environment.
In the given cladogram, the trait that evolved twice in evolution is bipedalism, reflecting the same need for chickens and humans to adapt to their environment in the same way and according to their habits.
what is your personal responsibility towards the environment? give 100 words
Answer:
My personal responsibility to the environment, as cataloged in the Brundtland report, is sustainability, I mean, ensuring that future generations will be able to enjoy the same quality and quantity of resources that I can have at this time, to I plan to make efficient use of services such as drinking water and electricity, make a correct separation at the source of solid waste so that the reusable material can be used and not cause unnecessary pressure on the earth's mantle, on the other hand, make a more continuous use of reusable or biodegradable material, in order not to increase pollution by waste that usually has as its final destination, in many cases, water sources such as the oceans, as well as reduce my consumption and that of my family of meat products, and products with chlorofluorocarbon gases, thus reducing the amount of gases that are deployed to the atmosphere and could destroy it.
Explanation:
The environmental commitment is something extremely important to allow there to be a true environmental sustainability beyond an advertising attractor, for this it is required that each person identify activities in which they can reduce the generation of pollutants, either through solid waste, dumping or gases. that affect the ozone layer such as methane or chlorofluorocarbon gases, these activities can regularly be carried out from our own homes and, although they may involve additional work, they will allow future generations to enjoy an environment with a quality similar to or better than the one we have currently.
Guys helpppppp please and I hope y’all have a great day
Answer:
Ok so
Explanation:
1. DNA
2.A , G , C and T
3.The 3-dimensional double helix structure of DNA, correctly elucidated by James Watson and Francis Crick. Complementary bases are held together as a pair by hydrogen bonds.
4.Chargaff's realization that A = T and C = G, combined with some crucially important X-ray crystallography work by English researchers Rosalind Franklin and Maurice Wilkins, contributed to Watson and Crick's derivation of the three-dimensional, double-helical model for the structure of DNA.
5.Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things.
6. 1869
7.The double helix of DNA is, like its name implies, in the shape of a helix which is essentially a three dimensional spiral. The double comes from the fact that the helix is made of two long strands of DNA that are intertwined—sort of like a twisted ladder.
8. In DNA, the code letters are A, T, G, and C, which stand for the chemicals adenine, thymine, guanine, and cytosine, respectively. In base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine.
9. A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. ... Every person has two copies of each gene, one inherited from each parent.
10. 20
11. A group of disorders that cause red blood cells to become misshapen and break down.
With sickle cell disease, an inherited group of disorders, red blood cells contort into a sickle shape. The cells die early, leaving a shortage of healthy red blood cells (sickle cell anaemia) and can block blood flow causing pain (sickle cell crisis).
12. Sickle cell anemia is caused by a mutation in the gene that tells your body to make the iron-rich compound that makes blood red and enables red blood cells to carry oxygen from your lungs throughout your body (hemoglobin).
13. The Human Genome Project was an international scientific research project with the goal of determining the base pairs that make up human DNA, and of identifying and mapping all of the genes of the human genome from both a physical and a functional standpoint.
I'm so absolutely sorry if this is long. Good lucj with ur work ;D
Which factors increase the heat absorbed by a land surface? Select the two correct answers. (1
becoming paler
becoming smoother
removing plants
removing snow
becoming wetter
The heat absorbed by the land and oceans is swapped with the atmosphere by the means of conduction, radiation, and latent heat. By removing plants, and removing snow increase the heat absorbed by a land surface, i.e., option C and D.
What are the means of heat transfer?Heat transfer is a mechanism of conveying energy and entropy from one location to another.
It can be done by either of the following:
Conduction.Convection.Radiation.Factors increase the heat absorbed by a land surface are by removing snow and by removing plants.
Thus, the correct options are C and D.
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Answer: The correct options would be C) removing plants and D) removing snow.
Hope this helps ^_^
Evidence from molecular biology supports the theory of evolution by showing_______.
Answer:
Evidence from molecular biology supports the theory of evolution by showing
Explanation:
What is the solution to the equation log2 (3x − 4) = 5?
Answer:
The correct answer is - 12.
Explanation:
Given:
log2 (3x − 4) = 5
Solution:
log2 (3x − 4) = 5
3x-4 = 2^5 (∵ lognx = b ⇔ x = a^b)
3x - 4 = 32
3x = 32+4
3x= 36
x= 36/3
x = 12
Your student is trying to create a "Gene X" knockout mouse by introducing a recombinant construct into embryonic stem (ES) cells, selecting transformants, and introducing the transformed cells into mouse blastocysts. He designed his construct as follows: NeoR region of homology to Gene X---HSV tk--- region of homology to Gene X where Neo is the neomycin-resistance gene and HSV tk is the Herpes Simplex virus thymidine kinase gene. He transforms the ES cells and exposes them to G418 and ganciclovir. Explain to your student why he failed to recover transformed ES cells. Choose the two correct statements. a. His construct incorporated into the mouse DNA by illegitimate recombination. These cells would be sensitive to ganciclovir and neomycin, and would die.
b. His construct incorporated into the mouse DNA by illegitimate recombination. These cells would be resistant to ganciclovir, but sensitive to neomycin, and would die.
c. His construct incorporated into the mouse DNA by homologous recombination. These cells would be sensitive to ganciclovir, but resistant to neomycin, and would die.
d. His construct incorporated into the mouse DNA by homologous recombination. These cells would be sensitive to neomycin and ganciclovir, and would die.
e. His construct incorporated into the mouse DNA by homologous recombination. These cells would be sensitive to neomycin, but resistant to ganciclovir, and would die.
f. His construct incorporated into the mouse DNA by illegitimate recombination. These cells would be resistant to neomycin, but sensitive to ganciclovir, and would die.
What is the molality of a solution made with 5 moles of KCl in 10 kg of water?
1 m
0.005 m
0.05 m
0.5 m
What is a by-product of the photosynthetic light reaction?
Answer:
co2+water--> glucose + o2
pleas help me !!!
Which activity would you predict is most likely to have the smallest impact on ecosystem services?
a. building a dam for energy production
b. building new housing in an area far from a city
c. using land to create a national park
d.using more land to grow corn that is used to produce fuel
Answer:
I think it's
c. using land to create a national park
which two statements about composite materials are true?
A. they're made up of more than one substance
B. they have the same or similar properties as the materials used to make them
C. they're always made of metal
D. they're readily available in nature
PLEASE HELP QUICKL!!!
The YELLOW arrows in the
diagram point to what?
A. The templates for new DNA strands
B. The new DNA strands
C. The location of the RNA
D. The location of the hydrogen bonds
Answer:
The template for New DNA strands
Endangered species are ?
1. Resources that are limited in supply because they are used faster than can be replaced
2. The variety of organisms in an ecosystem
3. Resources that are replaced as quickly as they are used
4. species that have been identified as likely to become extinct
Create a balanced ecosystem with primary consumers, secondary consumers, tertiary consumers and decomposers
Answer:
The answer is below
Explanation:
1. Primary Producers: they are usually plants or organisms that consume carbon dioxide, water, and solar energy. Examples are Cactus, phytoplankton, algae, etc.
2. Primary consumers: these are usually known as herbivores as they mainly feed on plants or primary producers. Examples are butterflies, zooplankton, and grasshoppers, etc.
3. Secondary consumers: these are usually known as carnivores that feed on animals alone or omnivores that feed on animals and plants. Examples are lizards, minnows, fish, etc.
4. Tertiary consumers: these mainly feed on secondary consumers. Examples are Snake, Frog, seal, etc
5. Decomposers: these are organisms that break down the dead cells of animals and plants. Examples are fungi and bacteria.
A modification of a gene or chromosome that occurs during gamete formation or early development that permanently alters the expression of that gene for the lifetime of the individual is called:____.
a. epigenetic inheritance.
b. maternal effect.
c. sex-linked inheritance.
d. extra nuclear inheritance.
e. epistasis.
Answer:
Explanation:
Epigenetic inheritance is deals with the
study of the chemical modification of some genes or gene that are associated with proteins of an organism. An example of epigenetic is
Methylation it can either change rapidly during the life span of an organism or can be permanent if set early in the development of the embryo.
Epigenetic modifications are heritable, and can be passed from parents to offspring through genetic inheritance or passed down through multiple generations via transgenerational epigenetic inheritance.
Monitoring the Food Supply
The USDA, EPA, and FDA are the three government agencies responsible for oversight of food safety in the United States. Determine which agency is responsible for each component of the food supply
Food additives Use of pesticides Grain products Organic standards Bottled juice Vegetables Municipal water supply Packaged snacks Meat I Eggs I Frut I Poultry
USDA EPA FDA
Answer:
The correct answer is -
USDA EPA FDA
Fruit Municipal Water Supply Bottled Juice
Grain Products Use of Pesticides Eggs
Meat Food Additives
Organic standards Packaged Snacks
Poultry
Vegetables
Eggs
Explanation:
USDA, FDA, and EPA are government agencies. The detailed account of these agencies are as follows:
USDA - The United States Department of Agriculture (USDA) regulates, manages, certifies, and supports various organic products and programs related to agriculture. It also regulates raw fruits and vegetables. It ensures that the agricultural products are nutritious and safe. USDA also regulates meat products, with the poultry, the egg products.
FDA - The Food and Drug Administration (FDA) is responsibility is to protect public health by ensuring safe and secure drugs, biological products, food supply, cosmetics and many more such as packaged foods, bottled water or juices.
EPA - The Environmental Protection Agency (EPA) conserves the natural environment in order to improve human health by putting mandatory limits on the usage of pesticides, drinking water and air quality.
USDA EPA FDA
Fruit Municipal Water Supply Bottled Juice
Grain Products Use of Pesticides Eggs
Meat Food Additives
Organic standards Packaged Snacks
Poultry
Vegetables
Eggs
In the beginning man was born from creatures of a different kind; because other creatures are soon self-supporting, but man alone needs prolonged nursing.
a. True
b. False
Answer: True
Explanation:
The statement that "In the beginning, man was born from creatures of a different kind; because other creatures are soon self-supporting, but man alone needs prolonged nursing" is true.
The creatures that were different from man became self supporting soon. If the present form had been the original form of man, he won't have survived.
Which of these conclusions is most likely correct about the organisms found in the layers of rocks? (4 points)
The organism in Layer C is a modern form of the organism in Layer B.
The organism in Layer A is more complex than the organism in Layer B.
O The organism in Layer A is a modern form of the organism in Layer B.
The organism in Layer B is more complex than the organism in Layer C.
c
Explanation:
the answer is c I think .
..
........
Which of the following could be a hypothesis for the function of the thick,
waxy coating on a pine needle?
A. If the thick, waxy coating is destroyed, the pine needle will turn
brown.
B. The thick, waxy coating prevents water loss.
C. What happens to the needle if the thick, waxy coating is
destroyed?
D. The tree would feel cold without the thick, waxy coating.
Answer:
B. The thick, waxy coating prevents water loss.
Explanation:
This is because the thick waxy coating needle refer to structure posses by plants or mostly xerophites plants to adapt to their environment. Plants that grow in area where there is no abundance of water for use normally posses these structures which will reduce evapotranspiration and conserve water. These plants normally have extensive roots to draw water.
Question 6 of 10
Why is it important for scientists to state a conclusion?
A. To compare their hypothesis to the data that they observed
B. To appear reliable to other scientists
C. To make an educated guess about an event
D. To clearly state why the experiment was performed
SUBMIT
Explanation:
to compare their hypothesis to the data they observed
Answer:
A because that represents it
How can a change to Earth's orbit affect Earth's climate?
A. Moving closer to the sun can cause large ice sheets to form.
B. Moving closer to the sun can cool down the planet.
C. Moving farther away from the sun can cause polar ice caps to
melt.
D. Moving farther away from the sun can cool down the planet.
Explain how climate change connects to a common resource?
Explanation:
The evidences of climate change abound. However, its explanation to ordinary farmers for better understanding should involve a historical comparison of the past and present climates in their respective localities especially as it relates to their farming activities. For instance, inception and duration of rainfall in the past and present, the past and present trend in temperatures, in their localities can be used to illustrate evidences.
Climate change has both direct and indirect effects on productivity of agricultural productions which include changing drought, and the geographical redistribution of pests, flooding, rainfall pattern and diseases.
What are the factors affecting the climate?There are several natural or man-made factors that can lead to changes in climatic conditions and hence change the common resources.
The factors that affect climatic conditions are:
Elevation or altitude.Topography.Geography.Global warming, etc.As the climate changes it starts affecting the common resources. It affects agricultural productivity. It can also alter the energy needs and energy generation potential.
Thus, this is the connection between climate change and common resources.
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Which of the following statements about planetary satellites is true?
Answer:
C
Explanation:
Why do so many more people have brown eyes then blue eyes
Psittacines are what type of animal?
Snakes
Turtles
Parrots
Cockatiels
Answer:
Snakes
Explanation:
because they are dangerous
Which statement provides the best description of a food web?
A. Food webs list all of the animals and plants in an ecosystem.
B. Food webs show how all the consumers compete for food resources in an ecosystem.
C. Food webs show the transfer of energy among producers, consumers, and decomposers.
D. Food webs show how many producers, consumers, and decomposers there are in an ecosystem.
What are two ways in which ultrasound technology produces images?
A. By the absorption of sound waves in the body
B. By detecting the frequencies of emitted sound waves
C. By using sound in frequencies that reflect off body tissues
D. By measuring the time it takes for reflected sound waves to be
detected
C and D
Hope this helps have a great day!!
The ultrasound images are produced by using the sound frequencies that reflect off body tissues and by measuring the time it takes for reflected sound waves to be detected. So the correct options are C and D.
What is ultrasound imaging?High-frequency sound waves are used in ultrasound imaging, also known as sonography, to look within the body.
Real-time ultrasound imaging allows for the display of blood flowing via blood vessels as well as the activity of the body's interior organs.
Contrary to X-ray imaging, ultrasonic imaging does not expose patients to ionizing radiation. A transducer (probe) is positioned either on the skin or within a bodily orifice during an ultrasonic examination.
To allow the ultrasonic waves from the transducer to pass through the gel and into the body, a small coating of gel is placed on the skin.
The ultrasound picture is created as a result of the waves' reflection off the body's structures. The information required to create a picture is provided by the intensity (amplitude) of the acoustic signals and the duration of the wave's passage through the body. Therefore the correct options are C and D.
Read more about ultrasound imaging,
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Some years ago, before crude oil prices became an economic concern and an international political issue, a biologist proposed a curious-sounding plan. He suggested that a portion of our crude oil supplies be converted directly into edible food, instead of distilling it to gasoline for the typical farming methods for raising food.
Before you become nauseated at the idea, you should know that this conversion has been done on a trial basis. Making edible, non-toxic food from petroleum is feasible. Also, considering that the components of fossil fuels were once ordinary plants and animals in an ordinary food chain, maybe there is some logic in his plan. What does crude oil amount to, anyway, but dinosaur fat? (No, really it is primarily formed from microscopic organisms.)
It might be the right time to form a new corporation and market a new product. What shall we call it…”DinoSnack,” maybe? With interest in dinosaurs as high as it is, how can we go wrong?
Your task is to evaluate this suggestion, allowing for both pro and con, the positive and the negative aspects of it. Surely there will be economic and political considerations, but concentrate especially on the biological, ecological factors.
OK, this sounds like a winner, because…
(OR)
No, it does not appeal to me, because…
Pease help its due soon!!
Explanation:
DinoSnack,” maybe? With interest in dinosaurs as high as it is, how can we go wrong?
Your task is to evaluate this suggestion, allowing for both pro and con, the positive and the negative aspects of it. Surely there will be economic and political considerations, but concentrate especially on the biological, ecological
Answer:
this is so good!
Explanation:
The screenshot of the question is below