BIO HELP 5 POINTS
The Miller-Urey Experiment:
1) attempted to prove that life on other planets existed.
2) disproved the notion of spontaneous generation.
3) simulated the atmospheric conditions of early Earth.
4) proved that gases could evolve in certain conditions from early rocks
Answer:
2
Explanation:
i think 99.9 percent sure trust me
For the trait of color in these beetles, where brown (B) is dominant to green (g), what is the phenotype ratio of the possible offspring of two heterozygous beetles?
Answer:
the answer is the last option 75% brown and 25% green.
1) A specialized function shared by the many cells lining the lungs and the lumen of the gut isA) decreased oxygen demand due to the lack of oxygen in foods.B) increased exchange surface provided by their membranes.C) greater numbers of cell organelles contained within their cytoplasm.D) greater protection due to increased cellular mass.E) lowered basal metabolic rate due to cooperation between cells
Answer:
B) increased exchange surface provided by their membranes
Explanation:
Alveoli are tiny air sacs that are responsible for exchanging oxygen (O2) and carbon dioxide (CO2) in the lungs. Alveoli have elastic fibers in order to expand and recoil depending on the volume of air breathed in. The alveolar epithelial cells (pneumocytes) may adopt a shape that serves to increase the surface area of gas exchange. On the other hand, intestinal epithelial cells have microvilli, which are microscopic projections in the plasma membrane. Microvilli serve to increase the cell's surface area, thereby facilitating the absorption of nutrients and water.
Answer:
B) increased exchange surface provided by their membranes.
Explanation:
The intestine that characterizes by being folded, and by having its walls covered by villi that project into the lumen. They are more concentrated in the first portion of the intestine, decreasing to the final region of the organ. They are involved in nutrients absorption by increasing the absorption area.
Nutrients are absorbed by primary cells and transported to the bloodstream. Mucus is secreted to protect the epithelium during digestion. Villi also transport water from the blood to the intestinal tract, which helps in food decomposition.
Besides the absorption function, the intestine characterizes by doing the peristaltic movement, secretion through special glandules, digestive function, absorptive functions, secretion functions, and endocrine functions.
Animals must have a respiratory membrane to make gas interchange. This surface must be humid, thin, and revested by a simple plane epithelium, plenty of vessels. The membrane must be permeable and exposed for gases to circulate. This membrane might be on the body surface or in specific respiratory organs, such as lugs. The gas exchange occurs by simple diffusion. Oxygen tends to diffuse to the interior of the organisms, while carbon dioxide tends to get out of it.
When purified virulent pneumococci DNA was introduced to avirulent pneumococci, Avery and his colleagues observed _____. Multiple choice question. no death in test animals only growth of avirulent pneumococci, indicating DNA was NOT the agent of transformation death of test mice growth of virulent pneumococci, indicating DNA was the agent of transformation
Answer:
death of test mice, growth of virulent pneumococci, indicating DNA was the agent of transformation
Explanation:
In an experiment conducted by three scientists namely: Oswald Avery, Colin MacLeod and Maclyn McCarty in 1944, it was proven that DNA is the substance that causes transformation in bacteria as opposed to proteins.
In this experiment, Avery and his colleagues combined a dead but virulent strain of Streptococcus pneumoniae & a living but avirulent strain of the same bacterium and inserted into a living rat. They found out that the test specimen (rat) died and observed the growth of the virulent pneumococci.
This suggests that the virulent strain of bacteria has transferred its virulent DNA via transformation into the avirulent strain to kill the rat. Hence, indicating DNA as the agent of transformation.
Dar tres ejemplos de alimentos con funcion estructural,tres ejemplos de alimentos con funcion energetica y tres ejemplos con funcion reguladora
Answer:
Alimentos plásticos o constructores: En este grupo se encuentran: Leche, yogurt y quesos. Carnes, pescados y huevos.
Función reguladora:todo tipo de frutas, como manzana, naranja, mandarina al igual que las espinacas, acelgas .
alimentos energéticos, pastas, arroz, productos de panificación (pan, galletas, etc.), dulces, miel, aceites, frutos secas (almendras, nueces, castañas ,
Explanation:
Which of the following does NOT affect the flow of groundwater through an aquifer ? a. porosity C. gradient b . chemical weatheringd. permeability
Answer:
b . chemical weathering
Explanation:
Chemical weathering is not affected the flow of groundwater through an aquifer but affect by the porosity and permeability. The rate of groundwater flow is controlled by two properties of the rock which are porosity and permeability. Porosity is the percentage of void space in a rock while on the other hand, Permeability is the quality of being permeable means able to be penetrated or passed through by a liquid or gas.
Which term refers to the energy an object has due to its position?
Answer:
Potential Energy.
Explanation:
Potential energy, stored energy that depends on different parts of the system's relative position. When compressed or stretched, spring has more potential energy.
A stainless steel ball has more energy than it had when it fell to the world. It is able to do more work in the raised position.
Potential energy is a system's property and not a single body or particle. The earth-consistent system and raised ball, for instance, have greater potential energy as the two are more distinct.
What's the differences between species richness management approach and indicator species management way?
Answer:
Both have different function.
Explanation:
The main difference between species richness management approach and indicator species management way is that in species richness management we perform activities that allows increase in the population of species while on the other hand, indicator species are the organisms that provides information about the environment that is present in that ecosystem. Both has differences in their functions and their actions.
Which word has a similar denotation to the word skinny but a more positive connotation?
Select one:
overweight
underfed
scrawny
slender
Answer:
I think slender is the answer
Which is an example of why the process of photosynthesis is important to life on Earth?
Answer:
Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces. Without photosynthesis there would be little to no oxygen on the planet.
What would happen if a populations chose their mates randomly?
A. Allele frequency would be constantly changing at random
B. The allele frequency would stay relatively the same over time because there are no traits that are being selected for.
C. Randomly mating allows the most beneficial traits to be passed on because more individuals are going to select for them.
D. Allele frequency would begin to favor the dominant trait.
Answer:
B. The allele frequency would stay relatively the same over time because there are no traits that are being selected for.
Explanation:
Like recombination, non-random mating can act as an ancillary process for natural selection to cause evolution to occur. Any departure from random mating upsets the equilibrium distribution of genotypes in a population. This will occur whether mate selection is positive or negative assortative.
Archaea are often called _________ because they live in areas where most living things couldn't survive.
A. hydrophiles
B. extremophiles
C. heterotrophs
Answer:
B. extremophiles
Explanation:
Archaea are often called extremophiles because they live in areas where most living things couldn't survive.
HURRYY, 50 PTS AND ILL MARK AS BRAINLIST !!
describe the interrelationships between the skeletal systems and the integumentary, muscular, cardiovascular and urinary systems
Answer:
Without the skeletal system holding the body together and supporting structure, the muscular, cardiovascular, and urinary systems would be crushed under the impact of our body mass.
Explanation:
Ninety-nine percent of the oxygen reaching cells can be best
represented by
Answer:
Hbo2
Explanation:
Ninety-nine percent of the oxygen reaching cells can be best represented as oxyhemoglobin
3 things that you learned about Particle Theory and Wave Theory of Light
Because it is ______ , fermentation _______ oxygen.
Answers:
aerobic/requires
anaerobic/requires
aerobic/does not require
anaerobic/does not require
Answer:
anaerobic/does not require
Explanation:
anaerobic occurs in the absence of oxygendraw any two microbes
In the attachment are some examples:
If you could genetically engineer any species of organism, what would it be? Would it be a unicorn? A
dog-cat hybrid? Your own personal pet giant? Choose any species--real or not--that your imagination
desires!
Write a paragraph describing your species, what it looks like, and where it lives. Think of any inherited
traits the species has that might help it survive in its environment. Thinking of these traits now can help
you come up with allele combinations in the next step. Now describe your species in the answer space.
Answer:
the species I would combine would be a trapdoor spider and a eel yeah its a unusual mix but at the same time it would be interesting to see because image a eel having 8 legs and spider fangs and armored skin it would most likely also be twice the size of a normal eel or even might have a mutation but who knows
The alteration of the natural gene is called genetic engineering. Genetic engineering helps to cure various diseases, these diseases are as follows:-
ADA syndromeRNAi interferenceGenetic engineering help to make the new organism with the crossing of the two new species.
If I had to choose the an organism I would choose CAT as they are very familiar and easy to work on.
The alleles of the different organisms help to make a new character.
For more information, refer to the link:-
https://brainly.com/question/2817451
Beth broke her ankle bone. The doctor gives her a brochure on foods she can eat to help restore the
health of her
bones. Which element will help Beth
strengthen the bone?
Answer:
Phosphorus
Explanation:
Edge2021
6) What term describes an educated guess that needs to be tested by
experimentation?
Hypothesis
Gravity
Biology
Scientific Law
Theories
What do we pass onto future generations?
A. Bacteria
B. DNA
C. Homework
Answer:
B. DNA
Explanation:
DNA is passed on from generation to generation. This is the genetic information and tells the cells what to do and how to operate. So this information does in fact need to be passed on.
How does mutation change allele frequency
A. It forces evolution to happen by introducing new adaptions.
B. It causes some individuals to go extinct because their mutations hurt their chance of survival.
C. It adds new genes into the gene pool that didn't exist there before.
Answer:
C. It adds new genes into the gene pool that didn't exist there before.
Explanation:
Mutations add new alleles into a gene pool. It increases the population's genetic variation.
What is true about the NUCLEUS of a red blood cell and the NUCLEUS of a nerve cell?
A. The DNA found in a red blood cell nucleus is DIFFERENT from the DNA in a nerve cell nucleus.
B. They have HALF of the DNA as other somatic cells.
C. The DNA found in a red blood cell nucleus is the SAME as the DNA in a nerve cell nucleus.
Answer:
c
Explanation:
every cell have the same dna
Answer:
The answer is C
hope this helps
have a good day :)
Explanation:
In an energy pyramid, up to 10% of energy is transferred between trophic levels. Suppose the producer level has 50,000 J. Approximately how much energy is available to the next level, the primary consumer, in this energy pyramid?
Answer: 5,000
Explanation:So it is the 10% law, this is an example 10,000 for the first animal, 1,000 for the second and 100 for the third. So for 50,000 it would be 5,000 for the next
If an average cell in an organism lives for 40 hours, how much time would it spend in each of the phases?
Answer:
A cell spends most of its time in (M phase) or metaphase, this is when the cell divides. The Ameba sisters videos can help you.
Explanation:
Which structure(s) are connected to the peripheral nervous system? Select all that apply.
Answer: Here you go
Explanation: nerves (cranial, spinal, and peripheral) and neurons (sensory, motor)
Answer:
A Sense organ, A muscle, And A gland
Explanation:
Luminosity has do with brightness of a star. It's essentially the power of the star, or how light is being emitted from the surface. About how much brighter is Antares than the Sun
Si el genoma de una especie contiene un 40% de la base timina, ¿cuál será el porcentaje de guanina del genoma de esta especie? 10% 35% 60% 30% 20%
Respuesta:
El porcentaje de guanina del genoma de esta especie será del 60%.
Explicación:
El genoma de todas las especies está compuesto por ADN (ácido desoxirribonucleico) bicatenario, lo que significa que tiene dos cadenas. Estas cadenas se unirán la una con la otra mediante un componente muy importante en los nucleótidos: las bases nitrogenadas que pueden ser de 4 tipos distintos: timina (T), guanina (G), adenina (A) y citosina (C). Los nucleótidos se aparean siempre de la misma manera para formar pares de bases: citosina con guanina (C-G) y adenina con timina (A-T). De esta manera, podemos inferir que si hay un 40% de base timina en el genoma de una especie, se unirá con un 40% de adenina, y el 60% restante serán pares C-G.
La respuesta correcta es entonces 60%.
Joyce and Linda are identical twins who are 50 years old and enjoy exercising daily. Joyce avoids eating any dairy or animal products and eats granola made with canola oil for breakfast. Linda prefers rich foods, and eats bacon, eggs, and buttered toast each morning. Which statement describes a logical inference that can be made from the provided information?
Butter has higher levels of saturated fats in it than canola oil.
Linda and Joyce both have high levels of “bad” cholesterol.
Butter contains a small amount of polyunsaturated fats.
Linda has a higher level of “bad” cholesterol than Joyce.
Answer:
Linda has a higher level of “bad” cholesterol than Joyce.
Explanation:
Answer:
B
Explanation:
What are 3 environmental factors in the natural reserve that affect which mice in a population survive to produce