Answer:been isolated for more than 1250 years (which would render the proposition false at a conservative rate of 4 generations per century)? Quite possibly. They don’t, for example, have any form of agriculture or even a means to make fire, and their language is unintelligible. Chances are you have no recent (a few hundred, generations at least) Sentinelese relatives.
Explanation:
anyone help me? 1 number 2
Answer:
i dunno what class is this of, so tell me in the comment and I may rectify my answer according to that.
btw here u go
Explanation:
in q 1, part a, we need to tell what we observed in the growth of plants. we observed that the plant h was groing faster and healthier that plant g due to the fact that it was provided with a nutritive solution.
in its part b, we write the conclusion, i.e the plant which was provided with a nutritive solution grew more as all minerals required by the plants were replenished properly.
In q2, part a, we just compare their physical properties such as the plant g was not as healthy as plant h and plant h grew faster and taller than plant g.
in q2, part b, we just write what the solution is supplying the plant with, you can also check each one of their speciality on the web and write it also.
hope it helps
;)
Why do cells need to use active transport? Give one example of how cells use active transport.
You observe a yellow zone surrounding growth on mannitol salt agar. What does this indicate about the organism
Answer:
The organism is able to ferment mannitol.
Explanation:
HELP PLEASE! TY
A. How are radio waves used to create radar maps?
B. How does reflectivity help meteorologists figure out the weather shown on
radar maps?
Answer:
A. These signals have been calibrated against actual visual and location readings for the amount of rain falling and cloud water content. ... Thus the computer generates a visual image according to the reflectivity of the amount of water in colors on a map.
B. Reflectivity of an object helps indicate the amount of water that a cloud may carry. The stronger the reflected signal from the radar signal sent out, the easier the meteorologist will be able to tell what to expect. ... This in turn is interpreted by the meteorologist from past experience as what to expect in the future.
describe in detail, the pathway of an oxygen molecule as it moves from the air outside your body, into your blood and to cell in a muscle in your arm
Answer:
The oxygen molecule enters the human body from the mouth or nose and reaches the phraynx and then the larynx, trachea and the bronchus. It then enters the lungs which then the red blood cells takes the oxygen from the blood and carries it to the muscle in the arm.
The pathway of an oxygen molecule from the air outside your body to a muscle cell in your arm involves several sequential steps, including inhalation, gas exchange in the lungs, transportation through the bloodstream, and diffusion into muscle cells.
During inhalation, you breathe in air through your nose or mouth. The air travels through your respiratory system, passing through the trachea (windpipe) and into the bronchi, which branch into smaller tubes called bronchioles. Eventually, the inhaled air reaches the alveoli, tiny air sacs located at the end of the bronchioles in the lungs.
In the alveoli, oxygen molecules diffuse across the thin walls of the air sacs and into the surrounding capillaries. Oxygen diffuses from an area of higher partial pressure (in the alveoli) to an area of lower partial pressure (in the capillaries). Hemoglobin, a protein within red blood cells, binds to the oxygen molecules in the capillaries, forming oxyhemoglobin.
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PLEASE HELP
Which of these contain
DNA and/or RNA?
Answer:
dna and rna
Explanation:
DNA is a double-stranded molecule, while RNA is a single-stranded molecule. ... DNA and RNA perform different functions in humans. DNA is responsible for storing and transferring genetic information, while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.Feb 2, 2020
What happens yo DNA as the cells prepares to divide
DNA Synthesis
In preparation for cell division, the cell makes a replica of its entire DNA. This happens during the S, or synthesis, phase of the cell cycle. Mitosis is the division of one cell into two cells that each has a nucleus and the same amount of DNA as the original cell.
1 point
Which of the following would be a good conductor of electricity, heat, and can be drawn into a wire and is malleable?
O Metal
O Nonmetal
O Metalloid
O None of the above
Previous
Answer:
metal
Explanation:
Answer:
Metal is a good conductor of electricity, heat and drawn into a wirr and is malleable
Red blood cells have _________ and generate energy ________.
mitochondria; anaerobically
no mitochondria; anaerobically
mitochondria; aerobically
no mitochondria; aerobically
None of the above
Answer:
no mitochondria; anaerobically
Explanation:
Red blood cells have no mitochondria and generate energy anaerobic. So, the answer would be B. You can easily eliminate A. and C. because they mention that blood cells have a mitochondria, but they don’t.
write the function of these in your body. carbohydrates, protein, vitamin
Answer:
Carbohydrates- is the main source of energy of your body. They help you fuel your brain, kidneys, heart muscles, and central nervous system.
Protein- A lot of your body is protein. Your muscles are just about all protein, and most of your organs are protein. Many of the chemical reactions in your body are speeded up by other types of protein. Your body can make some of the components of protein by itself, and it must get some of the components from outside of the body.
You need protein daily for your tissue to repair itself, normal function, and perhaps to grow.
Vitamin- Vitamins allow your body to grow and develop. They also play important roles in bodily functions such as metabolism, immunity and digestion.
Which of the following are water problems? Select the three correct answers.
droughts
condensation
pollution
conversation
runoff
floods
Answer:
floods are the water problem
what happened to the molecules when you moved the slider to 0°c ?
Answer:
: Liquid water molecules move more and more slowly until they begin to stick together to form an ice crystal.
Explanation:
Biology questionnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Answer:
3rd one
Explanation:
Answer:
c. firewood
Explanation:
its a chemical reaction
pls help science kills me
Answer:
false
Explanation:
its the other way round!
Answer:
i am 90% sure its false
Explanation:
proteins for sure helps with strength and elasticity, id k what minerals do.
What percentage of body weight must be lost due to dehydration before delirium, exhaustion, and collapse occur
Answer:
7-10 percent of body weight must be lost due to dehydration before delirium, exhaustion, and collapse occur.
Explanation:
Hope this helps!
Helpppppppp! Its biology related <3 help help !
the process of converting dna to rna is called _______.
Estimating the weight of a dinosaur using only bones is difficult. Another way is by using scale models. The density of a dinosaur is scaled based on the average density of what living animal
Given what we know about the methods used by scientists to estimate the weight of a dinosaur, we can confirm that the density of a dinosaur is scaled based on the average density of the common crocodile.
Scaling the density of an extinct animal based solely on bones can be a daunting task. Since the bones themselves do not offer much information on which to base such a calculation, scientists are often forced to rely on other estimations. One such example is the bone scaling method.
This method relies on the genetic relationships shared between the dinosaur and current-day living animals. This offers the ability to compare the dinosaur to the known body mass of a modern-day living animal. The animal most commonly used is the crocodile, however, though this method can provide the scientists with a degree of accuracy, it lacks precision.
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which statement is a feature of both prokaryotic and eukaryotic genes?
Answer:
DNA‑binding proteins influence the ability of RNA polymerase to initiate transcription of a gene
Explanation:
Students observed the shape of the Moon with the same amount of time between each observation. They drew this sequence.
Complete each of the 2 activities for this Task.
Activity 1 of 2
How long did it take them to record this sequence?
(Mark the one best answer.)
A.
About 2 days
B.
About 2 weeks
C.
About 2 months
D.
About 2 years
Answer:
B about 2 weeks
Explanation:
Two weeks is how long it would take to observe five moon phases. Rather that 2 months which would show two full moon cycles.
What are the two types of force in simple machine?
Answer:
there are many..
Explanation:
wheel and axel are two type of forces in simple macine
Explanation:
any two types of force are : contact force & frictional force.
hope this helps you.
why would one gene work as a barcode for one species and not for another
One gene work as a barcode for one species and not for another because for different species different barcodes are used.
Every specie is different than another organism genetically so it also needs different barcodes for every other specie. If all the species are made up of the same gene then we can say that one barcode is used for all of them but its not the case.
Every organism has different and its own gene so one gene barcode is not acceptable for all species but for the original one so we can conclude that one barcode is used for one species and not for another.
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what color does iodine turn in the presence of starch?
what plant cell organelle performs photosynthesis?
In December 2004, a tsunami (giant wave) destroyed many of the marine organisms along the coast of the Indian Ocean. What can be expected to happen to the ecosystem that was most severely hit by the tsunami?
A. The ecosystem will change until a new stable community is established.
B. Succession will continue in the ecosystem until one species of marine organism is established.
C. Ecological succession will no longer occur in this marine ecosystem.
D. The organisms in the ecosystem will become extinct.
Answer: A
Explanation:
It varies but "A" is the most legitimate answer.
What is the base sequence of the DNA gene that originally produced this mRNA codon?
Answer:
A, TCA. Using the corresponding bases working backwards, A becomes T, G becomes C and U becomes A. Hope this helps
Explanation:
A population of 200 mice contains 168 brown mice. Brown is dominant to gray. How much of the population would be h e t e r o z y g o u s?
A. 32%
B. 84%
C. 48%
D. 16%
The answer is B, yo welcome
The heterozygous population in the population of 200 mice is 84%. The correct option is B.
What is heterozygous?Heterozygous means having two types of alleles for the same type of gene. These alleles show two types of characters for a single gene. An example is a person having an allele of brown and black hair.
The population is 200 of which 168 mice are brown
By the Hardy–Weinberg (HW) equilibrium
q² (bb) = (200 - 168) /200 = 32 / 200 = 0.16
q: √ 0.16 = 0.4
p = 1 - q = 1 - 0.4 = 0.6
p² (BB) = 0.6 x 0.6 = 0.36
Thus, the correct option is B. 84% regarding the heterozygous population.
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Will give brainliet no file plz
Answer: Hey Hi Where is the question??
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Explain please
Answer:
Site A W,X,Y,Z
Site B W,Z,Y,X
Explanation:
this is true believe meMatch each part of the kidney with the correct label.
Kidneys are externally surrounded by a three-layer capsule, and internally composed of the cortex, medulla, and pelvis. In the image, 1) Cortex, 2) Medulla, 3) Sinuses , 4) Capsule.
What are the kidneys?
The kidneys are bean-shaped, bilateral urinary organs located at each side of the vertebral column, under the ribs, and behind the abdomen (superior right and left abdominal quadrants).
Their main function is to filtrate blood, eliminate wastes and water excess through urine, and keep internal homeostasis.
When blood enters the kidneys, water, salts, and other waste substances are eliminated as urine, and the filtrated blood returns to the organism.
Kidneys are composed of different parts.
Externally,
Renal fascia ⇒ External layerRenal fatty capsule ⇒ Media layerRenal fibrous capsule ⇒ Internal layer
Internally,
the renal cortex ⇒ produces erythropoietinrenal medulla ⇒ contains nephrons, which filtrate blood and produce urine.renal pelvis ⇒ ilion
The medulla is arranged as pyramidal masses composed of tubular structures. In between the pyramids, there are renal papilla and calyces.
1) Cortex
2) Medulla
3) Sinuses
4) Capsule
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