Answer:
Many other planets throughout the universe probably hosted intelligent life long before Earth did, a new study suggests.
The probability of a civilization developing on a potentially habitable alien planet would have to be less than one in 10 billion trillion — or one part in 10 to the 22nd power — for humanity to be the first technologically advanced species the cosmos has ever known, according to the study.
"To me, this implies that other intelligent, technology-producing species very likely have evolved before us," said lead author Adam Frank, a professor of physics and astronomy at the University of Rochester in New York. [13 Ways to Hunt Intelligent Alien Life]
In 1961, astronomer Frank Drake devised a formula to estimate the number of extraterrestrial civilizations that may exist today in the Milky Way.
Adam Frank and co-author Woodruff Sullivan of the University of Washington were interested in the odds that intelligent aliens have ever existed anywhere in the universe. So they tweaked the famous Drake equation, coming up with an "archaeological version" that doesn't take into account how long alien civilizations may last.
Frank and Sullivan also incorporated observations from NASA's Kepler space telescope and other instruments, which suggest that about 20 percent of all stars host planets in the life-friendly, "habitable zone," where liquid water could exist on a world's surface.
- A Chiefs Fan (but Watkins could look a little better...)
Suppose you eat a serving of green beans. What reactions must occur for the amino acid monomers in the protein of the beans to be converted to proteins in your body?
During photosynthesis energy from the sun is converted into
Which of the following foods contain MOSTLY proteins? (Check all that apply)
Bread
Broccoli
Soda
Pasta
Olive oil
Fish
Butter
Nuts
Steak
Answer:
ok here goes
Explanation:
mostly all proteins contain fats and oil so I'll take Butter,nuts,steak,olive oil mostly as my answer according to me fish kinda has adequate proteins to carbohydrates
(hope i was helpful, thanks for the chance)
Most of the milk products and by-products consist of proteins. Items like Bread, Pasta Olive oil , Fish , Butter , Nuts . Even steak also consists of protein in large qualities.
Protein is a building block of the body and mostly found in animal and plant bodies. It is a important part of the healthy diet and is good source of nutrition.
Most of the oils, butter, nuts and cheese consists of fats that consist of enzymes and are used as an energy source of tonic. Hence the option olive oil, nuts, butter, fish and steak consists of high amount of protein.Learn more about the Which of the following foods contain mostly proteins.
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I’m thinking both what do you all think??
Answer:
I actually think a chemical change
Explanation:
The chemical composition should not change in a physical change so therefore I think it’s only a chemical change
In guinea pigs, smooth coat (S) is dominant over rough coat (s), and black coat (B) is dominant over white coat (b). In the cross SsBb × SsBb, how many of the offspring will have a smooth black coat, on average?
a. 1⁄4
b. about 9⁄16
c. 1⁄16
d. 6⁄16
e. 2⁄6
Answer:
The correct answer is - b. about 9⁄16
Explanation:
I the given question is given:
Smooth coat (S) is dominant over rough coat (s), and black coat (B) is dominant over white coat (b)
Then cross betwen SsBb × SsBb
gametes:
SB, Sb, sB, and sb for each parent:
SB Sb sB sb
SB SSBB SSBb SsBB SsBb
Sb SSBb SSbb SsBb Ssbb
sB SsBB SsBb SsBB ssBb
sb SsBb Ssbb ssBb ssbb
every offspring with SB in the combination will express a smooth black coat that is 9 according to the Punnett out of 16 offspring.
In the United States, it is possible for discoverers of gene sequences in organisms to patent those sequences. This gives the discoverer property rights for the sequence. Many scientists object to this practice. Which is the strongest scientific argument against allowing a gene sequence to be patented?
Group of answer choices
Patenting sequences prevents conservationists rom understanding the ecological needs of organisms from which the patented sequences come.
Patenting sequences prevents he sequences from being expressed in nature.
Patenting sequences prevents researchers from studying and creating innovations from the patented sequences.
Patenting sequences prevents the sequences from being used in genetically modified organisms.
Answer:
Explanation:
There is little evidence that early fears about gene patenting placing substantial ... owner and do not protect against independent invention), patents require disclosure that ... gene knock-out methods and even for individual gene sequences. ... Human gene patents result from the cloning and description of the sequence of a ...
so option c maybe
Which of the following foods contain MOSTLY lipids? (Check all that apply)
Bread
Broccoli
Soda
Pasta
Olive oil
Fish
Butter
Nuts
Steak
Answer:
Olive oil.
Explanation:
Edible oils are lipids. These include vegetable oils such as:
canola cottonseed grape seed corn olive peanut and many others1) In yeast signal transduction, a yeast cell releases a mating factor which
A) acts back on the same cell that secreted the mating factor, changing its development
B) passes through the membranes of neighboring cells, binds to DNA, and initiates transcription
C) binds to receptors on the membranes of other types of yeast cells
D) diffuses through the membranes of distant cells, causing them to produce factors that initiate
long-distance migrations
In yeast signal transduction, a yeast cell releases a mating factor that diffuses through the membranes of distant cells, causing them to produce factors that initiate long-distance migrations. Thus, the correct option for this question is D.
What is the mechanism of reproduction in yeast?The mechanism of reproduction is yeast is processed through the process of budding which is a type of asexual reproduction. In this mechanism, A bud is a tiny protrusion from the parent cell that pinches off and produces a new individual when it reaches maturity.
Yeast is a single-celled organism that does not have complexity in its process and functions. So, this organism performs its mechanism of reproduction and other functions through the process of diffusion.
Therefore, in yeast signal transduction, a yeast cell releases a mating factor that diffuses through the membranes of distant cells, causing them to produce factors that initiate long-distance migrations. Thus, the correct option for this question is D.
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If anyone knows this please let me know and explain??
Answer:
I am pretty sure the answer is Melting
Explanation:
An amoeba ingests large food particles by
Products of the breakdown of an original pesticide or herbicide are called __________.
A)
silt
B)
degradates
C)
soil peds
D)
cations
E)
aggregates
Answer:
B
Explanation:
degradates
Tissues are groups of similar _____ performing the same function.
Answer: A tissue is a group of similar cells together. An organ is groups of two or more tissue. An organ system is a group of organs.
Explanation:
HELPPPP
Which organelle helps
distribute chromosomes to new cells during cell division?
O vacuoles
O golgi bodies
O centrioles
O chromatin
What possible genotypes will the offspring have if the parents' blood types are O and AB?HELP PLEASE!!!
Answer:
. In most cases, an O parent and an AB parent will have only A or B kids.
Cellular Respiration is mainly about the release of what?
Answer:
Carbon Dioxide
Explanation:
Water is also released but its mainly carbon dioxide
Answer:
Cellular respiration includes the releasing of ATP.
Explanation:
Cellular respiration take place in the cells and produces ATP.
How many of the 17 children have arthritis
Answer:
Why purple guy kill five of the and stuff the in animatronic suit?
What happens in an endothermic reaction?
Answer:
In endothermic reactions, more energy is absorbed when the bonds in the reactants are broken than is released when new bonds are formed in the products. Endothermic reactions are accompanied by a decrease in temperature of the reaction mixture.
What gas in the atmosphere helps to protect us from that radiation
Answer:
ozone
Explanation:
All living organisms on the earth are protected from the harmful radiation coming from the sun by the ozone gas present in the stratosphere. Ozone gas is formed by the action of sunlight only oxygen of the air in the atmosphere.
Answer:
ozone gas
Explanation:
What is formed as a result of mitosis?
A.four genetically different cells.
B.four genetically identical cells
C.two genetically different cells
D.two genetically identical cells
Answer:
D. two genetically identical cells.
Explanation:
True or false (look at the pic below for the question)
Answer: True
Explantion:
Answer:
I am going to say true
Explanation:
Plants often store food in their stems. Roots - The roots of a plant grow underground. Roots help to keep the plant from falling over and gather water and minerals from the soil. Some plants store food in their roots.
Please correct me if I am wrong :)
Perception is:
O A. creating images through your experiences.
O B. picking up information and relaying it to the brain.
O C. the ability to work top down or bottom up.
O D. organizing and interpreting sensory input.
Black mice and tan mice are native species that are observed in a particular region. Human habitation in the region caused an invasive mouse species to enter the region. These mice are brown and share the same food requirements as black mice. Tan mice have different food requirements. How will this change affect the food web in the region? A. The availability of food resources for black mice and brown mice will decrease. B. The population of tan mice will decrease. C. The black mice and tan mice will compete for food resources. D. The tan mice and brown mice will compete for food resources.
Answer:
A
Explanation:
The correct answer would be that the availability of food resources for black mice and brown mice will decrease.
Since the food requirements of the black mice are the same as that of the invasive brown mice, the available food supply that used to be only for the black mice would now be shared by the two strains of mice. Hence, the available food for the two groups of mice will naturally decrease.
There is no sufficient information to conclude that the population of tan mice will decrease, hence, option B is incorrect.
The black mice and tan mice have different food requirements going by the information available in the illustration, hence, both cannot compete for food resources. Option C is, therefore, incorrect. In the same vein, option D is incorrect because the tan mice have different food requirements from the brown mice.
The only correct option is A.
What wave travels along the surface of a medium?
Fifty years ago, bed bugs were nearly eliminated in the United States by using of pesticides like DDT. Today bed bugs are back in beds and theaters. DDT is no longer used due to environmental issues. Pyrethrums are currently the top choice for bed bug infestations. Pyrethrums are especially useful to us because they generally have a stronger effect on bugs than on humans and animals.
Some bed bugs had mutations in their genetic code which allowed them to survive the chemical pesticide and they produced chemically resistant offspring. How can this be explained?
Question 5 options:
bed bugs chose other bugs to partner with who had the mutation
mutations involved in the genetic variation of the bugs were chosen by them
bed bugs chose other bugs to partner with who had no mutations
mutations involved in the genetic variation of the bugs are random
d
Explanation:
i looked up and it said mutation random
If a strand of DNA has 17% T,what percent will
be G? C? A?
Answer:
If a DNA strand has 17% Thymine (T) the percentage of the other nitrogenous bases will be 33% of Guanine (G), 33% of Cytosine (C) and 17% of Adenine (A), according to Chargaff's law.
Explanation:
The percentage of nitrogenous bass in a DNA strand can be established by knowing the percentage of one of the bases present in the molecule, in this case knowing that Thymine corresponds to 17% of bases.
DNA has the nitrogenous bases adenine (A), guanine (G), thymine (T) and cytosine (C). The bases of one chain are matched with the bases of another, according to the complementarity of the nitrogenous bases, where:
Adenine is complemented with thymine A=TGuanine is complemented by cytosine G≡CAccording to this, DNA molecule there is as much T as A, and an equal amount of G and C, and the percentages of nitrogenous bases can be calculated according to Chargaff's rule.
Chargaff deduced that in a DNA molecule the ratio of purine:pyrimidine is 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, according to the complementarity of the bases.
Calculating the percentages, according to the law of the base pair, if in a DNA chain there is 17% of T, in the molecule there is:
A = 17 %C = 33%T = 17%G = 33%Total ..... 100%Light energy is converted to chemical energy which is what
True or False: Food Webs are generally more accurate and detailed models of an ecosystem than Food Chains.
Answer:
True
Explanation:
They have more options and possible ways
Answer:
true,
The food web provides a better model of an ecosystem because the food web is a model between MANY different consumers and producers in an ecosystem. While the food chain is a model for just one consumer and producer. ... Because energy is lost as it moves from producers to consumers, the bottom level is the largest.
Which of the following molecules are classified as carbohydrates?
The molecules classified as carbohydrates are oligosaccharides, monosaccharides, disaccharides.
What are the carbohydrates?
Carbs, or carbs, are sugar particles. Alongside proteins and fats, starches are one of three fundamental supplements tracked down in food varieties and beverages.
Your body separates starches into glucose. Glucose, or glucose, is the principal wellspring of energy for your body's phones, tissues, and organs. Glucose can be utilized right away or put away in the liver and muscles for sometime in the future.
There is nobody size-fits-all measure of starches that individuals ought to eat. This sum can differ, contingent upon variables like your age, sex, wellbeing, and whether you are attempting to lose or put on weight. Overall, individuals ought to get 45 to 65% of their calories from carbs consistently.
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Why are plants intelligent?
Answer:hope tht helped
Explanation:
Genetic mutations are the direct cause of which of the
following?
Answer:
Inherited mutations are thought to be a direct cause of only a small fraction of cancers.
An acquired mutation is not present in the zygote but is acquired sometime later in life.
Explanation:
