what agent of erosion contributes to the formation of sand dunes?
a. animals b. plants
c. water d. wind
Answer:
d. wind
Explanation:
The movement of wind upon sand causes it move along with it and when the sand stops at a place it forms sand dunes.
Which of these is an example of the conversion of gravitational potential energy into kinetic energy?
Group of answer choices
a wind-up spring making a toy car move across the floor
a person running on a level track
an apple falling from a tree to the ground
a rubber band being stretched to twice its normal length
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
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
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.
For more details regarding climatic conditions, visit:
https://brainly.com/question/17768786
#SPJ2
The screenshot of the question is below
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
From the start codon through the stop codon, the length of the
fully processed AURKA mRNA is 1,212 nucleotides. Calculate the number of amino
acids in the polypeptide chain coded for by the mRNA.
Answer:
404 amino acids
Explanation:
The translation is the process by which a messenger RNA (mRNA) molecule is used as a template to synthesize a protein in the ribosomes. During translation, each triplet of nucleotides or 'codon' determines one specific amino acid of the growing polypeptide chain (i.e., the protein). In this case, the length of the fully processed AURKA mRNA consists of 1,212 nucleotides, thereby the length of the polypeptide chain will be 404 amino acids (protein length = 1,212 / 3 = 404 amino acids).
The following recombination frequencies were found between genes A, B, C, D, and E. Determine the order of these genes on the chromosome and sketch a linkage map of this chromosome with the map units labeled.
A, C: 10%
B, C: 4%
C, D: 20%
A, D: 30%
B, D: 16%
A, E: 6%
B, E: 20%
Answer:
6%
Explanation:
Cause its A to E, and the question says determine the order of these genes...
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.
Which of the following populations is most likely to be in Hardy-Weinberg equilibrium?
a. bacteria with mutating genomes
b. prairie dogs with established burrows
c. a few starfish in a tidal pool
Evidence from molecular biology supports the theory of evolution by showing_______.
Answer:
Evidence from molecular biology supports the theory of evolution by showing
Explanation:
In the Animals cladogram, which trait evolved two different times?
have wings.
For example, both
Reproduction for educational use only public sharing or posting prohibited. 2020 ExploreLearning All rights
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 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
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:
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
Who was the first person to connect a patient's symptoms to their actual autopsy findings?
Explain how the following factors caused the finch population to evolve to have a larger beak size: the potential for the finches to reproduce, the existence of genetic variation related to beak size in the population, the competition for limited resources, and the differential reproductive success of the individuals that survive.
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
HELP PLSSS
what are the differences between voluntary and reflex actions?
Answer:
Voluntary are actions you consciously do where as reflex actions are just a reflex you don’t think about them you just do them
HOPE THIS HELPS
-Todo ❤️
Explanation:
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 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.
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.
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.
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.
Psittacines are what type of animal?
Snakes
Turtles
Parrots
Cockatiels
Answer:
Snakes
Explanation:
because they are dangerous
Which of the following best explains the phrase "survival of the fittest" in terms of evolution by natural selection? (1 point)
O Only individuals that have the most mates will survive with limited resources
The individuals that are the healthiest will always get more resources and survive better
O The individuals that survive better and reproduce more often will pass their traits on more often.
The strongest and fastest individuals will always survive and reproduce more often
Answer:
C
Explanation:
This is because the favorable traits will typically be present within the surviving animals leading them to be able to survive long enough and pass down more favorable traits.
Hope this helps!
The sentence that best explains the phrase "survival of the fittest" the individuals that are the healthiest will always get more resources and survive better.
Evolution by Natural selectionThe theory of evolution was proposed by the scientist, Charles Darwin. He proposed that species can change over time, that new species come from pre-existing species, and that all species share a common ancestor.
Natural selection according to Charles Darwin was based on the fact that traits where inheritable. From his experiment, he concluded that:
some individuals will have inherited traits that help them survive and reproduce,organisms with these traits leave more offspring, the traits will tend to become more common in the next generation.These organisms with these helpful traits will become better adapted to it's environment.Therefore, the individuals that are the healthiest will always get more resources and survive better.
Learn more about natural selection here:
https://brainly.com/question/23929271
What is a by-product of the photosynthetic light reaction?
Answer:
co2+water--> glucose + o2
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
Approximately 55%of an adult female body weight is water if a woman body contains 38 kg of water what is the woman's total weight
Answer: 69kg
Explanation:
Let the total weight of the woman be represented by x. Based on the information given, we can derive an equation which will be:
55% of x = 38kg
55/100 × x = 38kg
0.55 × x = 38kg
0.55x = 38kg
Divide through by 0.55
x = 38kg/0.55
x = 69.09099
x = 69kg
Therefore, the woman's total weight is 69kg.
Which of the following statements about planetary satellites is true?
Answer:
C
Explanation: