Answer:
Así como el agua del mar tiene un peso que actúa sobre los seres que lo habitan, también lo tiene el océano de aire que hay por encima de nosotros. Cargamos sobre nuestras espaldas casi una tonelada de aire, pero no lo notamos porque nos sostiene en pie una presión atmosférica equivalente, que se ejerce en todas direcciones.
La presión media del aire al nivel del mar es de 1.03 kilogramos por centímetro cuadrado. Esta presión disminuye rápidamente al aumentar la altura: a 3,000 metros se reduce a unos 0.7 kilogramos por centímetro cuadrado y a 8,800 metros, la altura del monte Everest, la presión es sólo de 0.316 kilogramos por centímetro cuadrado. (El aire es tan tenue en estas altitudes que los alpinistas tienen que llevar suministro de oxígeno.
Explanation:
Which organelle part of the cell would say this if it could speak? Nobody messes with me! I make all the decisions in
this cell.
1)Cell membrane
2)Vacuole
3)Mitochondria
4)Cytoplasm
5)Nucleus
Answer:
nucleas
Explanation:
they control all the cells
__________ refers to the number of organisms per unit of an area.
A)
Genetic diversity
B)
Population density
C)
Population pyramid
D)
Population distribution
E)
Genetic variation
Answer:
B
Explanation:
Population Density.
Answer:
Population Density
Explanation:
What protects the outer layer of all the cells
What is positive feedback loop is also know as
Answer:
positive feedback (exacerbating feedback, self-reinforcing feedback) is a process that occurs in a feedback loop which exacerbates the effects of a small disturbance.
If
you were given information to identify an biome, which would be the most helpful?
the number of different species
the stability of the ecosystems
the complexity of the food web
the average temperature and rainfall
The domain __________________________________ is made up of prokaryotes that usually have a cell wall and the at usually reproduce by cell division.
Help plz
environmental cues can affect gene expression and protein synthesis.
true or false
Answer:
pretty sure its true
Explanation:
Digestion of dietary fats
Which physical and behavioral characteristics do you think distinguished humans from other primates?
Answer:
Give me answer choices then I can help you
Explanation:
a. AATACGTCCAGATTTT
b. TTAACCGAGTTCAGA
c. CCCGCGGAATATACA
d. AGGGCTACTTCAGAC
Answer:
what is the question??? I can't understand it sorry
The formation and action of angiotensin II can be summarized as follows: It is synthesized either when blood pressure is ____________ or the ____________ division is activated. It causes a(n) ____________ in resistance, ____________ in fluid output (which helps to maintain blood volume and blood pressure), and an increase in blood ____________ (if fluid intake occurs
Answer:
low, sympathetic, an increase, decrease, pressure
Explanation:
Angiotensin II is a peptide hormone whose primary function is to increase blood pressure by different mechanisms of action including vasoconstriction and sympathetic nervous stimulation. This hormone is produced by the action of the enzyme angiotensin-converting enzyme (ACE). Angiotensin II may act on the central nervous system (CNS) to increase antidiuretic hormone (ADH) levels, and on the arterial smooth muscle cells to trigger vasoconstriction. Angiotensin II induces the release of ADH and aldosterone hormones in order to increase blood pressure. When blood pressure returns to normal values, circulating Angiotensin II levels are decreased by negative feedback.
ASTRONOMY
10. Which type of telescope is known to be difficult to keep aligned?
rotating
refracting
reflecting
radio
Explanation:
Larger lenses are heavier, and tend to sag under their own weight, ruining the image quality as the lenses distort. The long mounting tubes are hard to make mechanically stiff, and so they tend to flex under the weight of the lens, making it hard to keep the optics in alignment.
The different types of telescopes include refracting telescopes, reflecting telescopes, radio telescopes, and rotating telescopes.
The refracting telescope was used by Galileo to discover the mountains and valleys on the moon.These refracting telescopes required long lenses in order for the light to focus properly.However, these long lenses made the telescope heavy.Because of their heaviness, it becomes difficult to keep refracting telescopes aligned.Hence, the correct answer is refracting telescopes.
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If a plant is considered “drought-resistant“ does it require more or less water to perform photosynthesis?
Answer:
Less water.
Explanation:
If the plant is "drought-resistant" then that should mean less water is required for the plant to perform photosynthesis.
Is the human fossil record complete? Explain your answer.
A study is being done to test the effects of temperature on the number of microbial colonies. Four different incubators are set up, each at a different temperature with one culture plate in each. Each plate has the same nutrient content, pH, and are inoculated with microorganism samples from the same source. At the end of the experiment, the number of colonies on each plate is counted. What is the independent variable
Answer:
The correct answer is - the different temperatures of incubators.
Explanation:
An independent variable is a variable in a study or research which is manipulated or changed to check or find the effect on the dependent variable. The independent variable is the only factor that changes in research while other factors remain constant that can affect the result in the study.
In this case or study, there is the only factor that is manipulated is the temperature of incubators is manipulated to see the effect of temperature on the number of microbial colonies. Thus, the different temperatures of incubators is the independent variable here.
How do humans influence certain traits of organisms through various techniques?
Answer:
In artificial selection, humans have the capacity to influence certain characteristics of organisms by selective breeding. One can choose desired parental traits determined by genes, which are then passed on to offspring.
Explanation: I hope I could help
13. The orthopedic surgeon says that the distal region of the humerus is
broken. What area is he describing?
A. Endosteum
B. Epiphysis
C. Perichondrium
D. Diaphysis
14. a science student claims that a substitution mutation is less likely to affect gene function than an insertion or deletion mutation. use logical reasoning and evaluate this claim.
Because insertions and deletions produce a frame-shift that modifies the interpretation of following codons, they are frequently more detrimental than substitutions that modify only one amino acid.
What is a mutation?A alteration in the DNA sequence of an organism is referred to as a mutation. Errors in the replication of DNA during the process of cell division, exposure to mutagens, or viral infections are all potential causes of mutations.
Base substitutions, deletions, and insertions are the three different kinds of DNA mutations that can occur.
Because an insertion or deletion results in a frame-shift that changes the reading of subsequent codons and, as a result, alters the entire amino acid sequence that follows the mutation, insertions and deletions are typically more harmful than substitutions, in which only one amino acid is changed. This is because frame-shifts change the reading of subsequent codons.
Learn more about mutation, here:
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Name and describe two (2) pathways in the Health Science career cluster.
Is water dry or moist????
Answer:
moist
Explanation:
because water is a liquid and its a moisture of wet
Determine the proportion of offspring phenotypes that would result when two merle dogs mate, if one dog is true-breeding for the long-coat trait and the other dog is true-breeding for the short-coat trait. ResetHelp
Answer:
100% long-coat
Explanation:
Assuming that the long-coat trait is represented by L allele and the short-coat trait by l allele.
True-breeding long-coat dog would have the genotype LL while true-breeding short-coat would have the genotype ll.
Assuming that the long-coat trait is dominant over the short-coat trait.
LL x ll
Ll Ll Ll Ll
All the offspring would have Ll genotype and would appear with long-coat phenotypically. Hence, the proportion of offspring phenotypes is 100% long coat.
I need These last answers
Answer:
67. Obligate anaerobes
68. Aerotolerant anaerobes
69. pH
70 media nutrient density
71. agar concentration
72. extremophiles
Explanation:
Anaerobes are microorganisms which do not require oxygen for their metabolic activities. The types of anaerobes based on metabolism are: obligate anaerobes; facultative anaerobes ; and aerotolerant anaerobes.
Some bacteria are anaerobes.
67. Obligate anaerobes do not require oxygen at all for their metabolism. They die in the presence of oxygen.
68. Aerotolerant anaerobes do not require oxygen as well but can also tolerate oxygen. they are unaffected by the presence or absence of oxygen
69. The pH of the medium affects the growth of bacteria. When pH becomes too low or too high, bacteria colonies begin to die.
70. when the nutrient concentration is high, growth rate of bacteria colony increases, but when it is low, bacteria colony growth decreases.
71. agar concentration limits the growth of bacteria colony. When the agar is very concentrated, that is the medium is hard, the bacteria colony is limited in their ability to move and vice versa.
72. Extremophiles is the name given to archaea that thrive in extreme conditions of temperature and pH. For example, the archaeal Methanopyrus kandleri strain 116 grows at 122 °C while the genus Picrophilus e.g., Picrophilus torridus has the ability to grow at a pH of 0.06.
Which of the following describes a non-sense mutation?
A.Base pair change results in a premature stop codon; protein is nonfunctional.
B.Base is changed but the resulting amino acid is the same as in the non mutant DNA. No outward changes
.
C.A base is either added or deleted and causes the codons to be read incorrectly.
D.Base pair change results in a different amino acid; this may or may not affect the protein that result.
Answer:
A.Base pair change results in a premature stop codon; protein is nonfunctional.
Explanation:
Mutation, generally, refers to any change that occurs to the genetic sequence of a DNA. It can occur in different forms, hence, has different types. One particular type is the base pair substitution mutation, which involves the replacement of one or more nucleotide base by another in a sequence.
Base pair substitution can either result in one of the following namely: silent, missense, and nonsense. In NONSENSE mutation, the replacement of bases in the sequence causes the translation process to stop because a STOP CODON is prematurely encountered. Hence, the protein is non-functional.
How many molecules of water are created when making a lipid?
Answer:
Three molecules
Explanation:
Since fats consist of three fatty acids and a glycerol, they are also called triacyclglycerols or triglycerides. Triacyclglycerols: Triacylglycerol is formed by the joining of three fatty acids to a glycerol backbone in a dehydration reaction. Three molecules of water are released in the process.
Answer: 3 molecules
Explanation: Hope that helps
5. According to a biomass pyramid, 50 mice will need 200 square meters of grass, if one mouse needs to eat four square meters of
grass to stay healthy.
O false
true
I will give out brainliest
Answer:
The statement is true.
Explanation:
As every single living organism, the mice also have their own unique requirements as to how much food they need to produce enough energy in order to stay healthy. Because the mice are small, warm-blooded, highly active, and have very fast metabolisms, they need a lot of food for their size.
If one mouse needs four square meters of grass to stay healthy, so if we want to find out how much grass is needed for more mice we just need to multiply the number of mice by the amount of grass needed for one mice. In this case, we have 50 mice:
4 x 50 = 200
We got 200 square meters of grass, meaning that that would be the amount/area of grass that will be enough to support the population of 50 mice.
While Exploring a fossils site you find a bunch of fossils leaves with smooth edges what could you learn from this evidence?
Answer:
guvj
Explanation:
Why is it possible to do the following party tricks without cheating?
A. Stand with back and heels touching a wall and bend forward from the hips to touch the floor. Return to the upright position without flling or moving the root.
B. Stand facing the edge of an open door with nose and abdomen touching the edge, the feetstraddling the door, and the hands to the sides. Attempt to rise up on the toes.Observe what body motions occur to keep the center of gravity within the base of support whenthese activities are performed without the impediments.
Answer:
When the body is supported by a wall then it can move in a position counter gravity. The gravity tries to pull the body down and the body responds to it with a slight delay because of wall support.
Explanation:
The body is lifted in upright position with the help of feet. The body rises but after few minutes the gravitational force creates pressure on the body and the body comes down to a natural state. Similarly if the open door is used to perform counter gravity activities then the body will stay for a lesser period in a state because of opened door instead of firm wall support.
What are the waste product of alcoholic fermentation
Answer:
Ethanol fermentation causes bread dough to rise. Yeast organisms consume sugars in the dough and produce ethanol and carbon dioxide as waste products. The carbon dioxide forms bubbles in the dough, expanding it to a foam.
Answer:
Ethanol and carbon dioxide
Explanation:
Which statement about community forestry is true?
A)
It involves comparing actual practices with practices that contribute to sustainability.
B)
The challenge with certification is that sustainability can be determined only by using future observations.
C)
Certification is considered more as an art or a craft than as a science.
D)
All of the above
Answer:
D)
All of the above
Explanation:
took the test and got it right!
The first organisms on Earth were most likely today's:
a.eukaryotes
b.DNA molecules
c.bacteria
d.multicellular organisms