(1) as organic molecules in living and dead organisms found in the biosphere
(2) as organic matter in soils
(3) in the lithosphere as fossil fuels and sedimentary rock deposits
How do some cells become brain cells and others become skin cells, when the DNA in all the cells is exactly the same?
Answer:
it has the ability to turn off genes
Agriculture uses large amounts of water for imigation
Please select the best answer from the choices provided
T
F
Answer:F
Explanation: I just know
Name one disadvantage of light microscopes
Answer:
We can't examin the specimen in tbe absence of lght. We can not study the internal structures.
Explanation:
Answer:
Light microscopes do not magnify at the same level as other options.
The typical light microscope cannot magnify as closely as an electron microscope when looking at some of the world’s smallest structures. Most models are capped at 2,000 times or thereabouts, with some entry-level models offering significantly less to the user. Because the relatively long wavelength of light decreases the ability of the equipment to magnify in the small focus lens, you may not always see everything that is going on with a slide when choosing this option.
describe respiration
Answer:
Respiration is a person's breathing and the movement of air into and out of the lungs.
Explanation:
The respiratory system provides oxygen to body tissues for cellular respiration, removes the waste product carbon dioxide.
What are the characteristics of prokaryotes? A prokaryote lacks a well-defined nucleus. A prokaryote cannot perform basic life functions. A prokaryote lacks cell organelles. A prokaryote is larger than a eukaryote.
Answer:
Lacks an well defined nucleus
Explanation:
Answer:
Answer:
Lacks an well defined nucleus
Explanation:
Explanation:
What happens to the dirt and matrix from each grid? it is discarded as trash it is burned to avoid contamination of the site it is collected for further analysis it is put back in the grid after the fossils have been removed?
Collection for further analysis is the action done to the dirt and matrix from each grid.
What is a Fossil?This is the remain of plant and animal which has been preserved in the earth crust.
The dirt gotten from the matrix is usually kept for further testing and analysis in the laboratory.
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Why is variation important for natural selection
Explanation:
genetic variation is important as it allowed natural selection to increase or decrease frequency of alleles already in the population. its also important to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.
Which three countries would you expect to have the highest standard of living? Drag the labels to the appropriate country?
Answer:
Denmark , Switzerland and Finland
Explanation:
Denmark , Switzerland and Finland are the top three countries in the world having highest standard of living. Standard of living means the availability of basic items, wealth, goods etc to the specific people or region. the people of these above three countries are wealthier, having better financial condition and has a comfort life as compared to people of other countries. The main reason of high standard of living of the people of these countries that these countries are developed whose economy is better than other poor countries.
11
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Give one reason why forceps should be use to pick up and drop the cube into acid.
(1 Point)
Answer:
Forceps should be used because directly touching the substance and dropping it into the acid with your hands can cause harm to yourself, and it can also prevent contamination of the substance.
It was once thought that decaying meat turns into maggots. Careful experimentation by scientist demonstrated that maggots actually come from fly eggs and not meat. These experiments illustrate that the new individual results only from reproduction and development
Answer:
True
Explanation:
Aristotle initially thought that life arose spontaneously and he backed this up by showing that a lump of meat left uncovered in a glass jar spontaneously produced maggots.
The spontaneous generation theory was later disproved by another scientist, Francesco Redi. He showed that a covered jar containing a lump of meat will not spontaneously produce maggots unless flies are allowed to perch and lay their eggs on the meat. The eggs of the flies give rise to the maggots and not the meat.
It thus showed that new life does not arise spontaneously but rather through development and reproduction.
he diagram shows one step in the process of protein synthesis. A step in the process of protein synthesis is shown. In this step, the t R N A is bonding to the m R N A strand. Which step is shown? transpiration translocation transcription translation
Answer:
The diagram shows one step in the process of protein synthesis.
A D N A strand. The R N A polymerase encircles a portion of the D N A strand, pulling it apart.
The process shown in the diagram is called
⇒ transcription.**
Explanation:
What do y’all think
shrimp will have more difficulty in finding food
Explanation:
Their population will also because their prey has gone extinct
Explain
two effects of
human factor on environmental hazards.
Answer:
1) Radioactivity, this is an exposure dependent risk of some cancers notably leukaemia.
2) Tobacco smoking, this damages their health.
Explanation:
I hope it helps.
In the Galapagos Island finches, the variation in the beak shape corresponded to which finch characteristic?
Answer: their diet
Explanation:
Answer:
Their diet
Explanation:
Plato
Predict the effects of a superficial injury to the spinocerebellar tracts.
Answer:
A superficial injury to the spinocerebellar tracts results in loss of coordinated movements of the trunk and lower extremities and presents with an abnormal clinical sign termed Ataxia.
Explanation:
Lesions of spinocerebellar tracts are ipsilateral. hope this helps you :)
The effects of a superficial lesion of the spinocerebellar tracts would be:
1) Muscle incoordination
2) Muscle tone disorders
The anterior spinocerebellar tract transmits proprioceptive information from the upper and lower limb tendon and joint receptor neuromuscular spindles.
The posterior spinocerebellar tract carries proprioceptive information from the trunk and lower limb.
All this information is integrated by the cerebellar cortex to later coordinate movements and maintain body posture.
A superficial injury to the spinocerebellar tracts would directly affect muscle tone (a state of permanent semi-contraction of the muscles), and an inability to coordinate movements.
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Can someone please help
Answer:
P = 0.79.
Explanation:
To solve this, we need to understand the Hardy-Weinburg equation and what each variable is. P is usually used for the dominant trait classification (in this case, it would be long legs) and Q is usually used for the recessive trait classification (in this case, it would be short legs).
Therefore, we know that the values have to add up to 1 and that Q is recessive and P is dominant. So, if we begin applications, we can learn that to equal 1, we must use numbers less than 1 to accomplish this.
If 21 of a 100-person population have short legs, then ideally, 79 people would have long legs (the dominant trait). So, we know that 0.21 as q and 0.79 as p would equal 1 if you just added p and q together. Therefore, we can know that q is 0.21 and p is 0.79.
To prove this, we can insert these values into the equation:
[tex]0.79^{2} + 2(0.79*0.21) + 0.21^{2} =1[/tex]
[tex]0.6241 + 0.3318 + 0.0441 =1[/tex]
[tex]1=1[/tex]
state any two conditions essential
for good health
Answer:
clean
Explanation:
privacy comfortable easy to use
Answer:
Two conditions essential for good health are: mental and social well-being. Better surroundings or -environment.
Explanation:
Write about the sand grouse ands it’s adaptation to the environment. Just be 5-7 sentences long. Please help me
Answer:
Sandgrouse is the common name for Pteroclidae, a family of sixteen species of birds, members of the order Pterocliformes. They are traditionally placed in two genera. The two central Asian species are classified as Syrhaptes. How the sand grouse adapt to environment. The dense layer of under down which helps insulate the bird from extremes of heat and cold. The feathers of the belly are specially adapted for absorbing water and retaining it. Allowing adults particularly males to carry water to chicks that may be many miles away from watering holes.
Explanation:
Which pair of terms best describes a wooden table? biotic and nonliving biotic and living abiotic and nonliving abiotic and living
Answer:
The liver is one of the vital organs of the body, responsible for hundreds of chemical actions that the body needs to survive. It is also a gland because it secretes chemicals that are used by other parts of the body.
Explanation:
Read the passage below and use the information to answer the question that follows. Joey is the oldest of three children. Like his siblings, he has has brown hair and green eyes. His sister likes to dance and his brother is a talented guitar player, but Joey does not like either of these activities. He enjoys basketball. Since Joey is very tall, he plays center on the basketball team at his high school, practicing hard so that he can get a basketball scholarship to college. Which of the following statements about Joey refer to genetic factors? Check all that apply. Joey has brown hair. Joey likes to play basketball. Joey has green eyes. Joey is very tall. Joey hopes to get a college scholarship. How can biologists help meet the needs of people who live in hot, dry environments?
Answer:
Joey is "tall, brown hair and green eyes"
Question 4 of 10
2 Points
Which factor helps determine the fertility rate of a group of people?
O A. Death rate
B. Education
O c. Consumption rate
D. Farmland
SUBMIT
Answer:
education
Explanation:
a) The important factor in osmosis is not the number of molecules. Instead, it is the number of particles in a given volume of solution. For example, one glucose molecule dissolved in water yields one particle, but one NaCl molecule can yield two ions: Na+ and Cl-. Water moves osmotically in response to the total concentration of particles in the solution.
If there is a 10% glucose solution on one side of a semipermeable membrane and 5% salt solution on the other side, what will most likely happen to the flow of water? (1 point)
¿5. El sistema circulatorio humano consta de vasos, corazón y líquidos circulatorios. Los tipos de vasos son los siguientes: a. _____________________________________________________________________ b. _____________________________________________________________________ c. _____________________________________________________________________
Answer:
La respuesta correcta es "a. arterias, b. venas; y c. capilares".
Explanation:
Los vasos sanguíneos son una serie de conductos a través de los cuales el cuerpo transporta la sangre, asegurando que todas las células del cuerpo tenga acceso a oxígeno, elemento necesario para la respiración celular. Hay tres tipos de vasos sanguíneos: arterias, venas y capilares. Las arterias llevan la sangre del corazón a los órganos, las venas transportan la sangre de los órganos al corazón y los capilares son vasos muy pequeñitos que llegan a las partes más pequeñas del cuerpo.
Chlorophylla is a critical pigment in plants that not only gives many of them their characteristic green color, but
is also important in the process capturing light energy from the sun in order to drive the process of
photosynthesis.
What is the most likely cell structure in which chlorophyll a would be located?
Answer:
In the plant cell it's found in the chloroplast.
Hope this helps.
How do enzymes help digestion?
Answer:
Enzymes are essential for healthy digestion.
Explanation:
There are three types of digestive enzymes depending on the type of food on which they act.
Lipases are those that digest fat. After its breakdown into fatty acids and glycerin, they are synthesized by the pancreas.
Proteases are the ones that break the peptide bonds of proteins, reducing them to organic monomers called amino acids. They originate in the stomach or pancreas.
The so-called amylases break down starches and complex sugars in the diet, by breaking the glucidic bonds, releasing mososaccharides (especially glucose). There are 3 types of amylases: ptyaline, pancreatic amylase, and duodenal amylase.
The benefits of these enzymes are:
- They help digestion and reduce the so-called "acidity".
- They reduce the feeling of bloating and gas.
- Improves the digestion of dairy products.
- Food allergies decrease due to good protein digestion.
- They improve the conditions of hiatus hernia and ulcers.
A microbiologist is in the process of classifying a newly discovered organism. Its characteristics include: · eukaryotic · multicellular · reproduces by spores · motile in some stage of its life cycle · decomposer Which type of organism is it most likely to be? club fungus fungus-like protist plant-like protist sac fungus
Answer:
fungus-like protist
Explanation:
A fungus mostly has those characteristics. Most of them are multicellular eukaryotes -- the exception being yeast, which are unicellular eukaryotes. They can reproduce by spores and are decomposers; they even consume via absorptive feeding!
First, it's definitely not plant-like, as it is a decomposer, and there is no indication that it can produce its own food. It doesn't entirely seem like a fungus either, so the answer is a fungus-like protist.
Answer:
The person above is correct. They should get brainliest.
Explanation:
Edge 2021
Describe how incomplete dominance and codominance, two non-mendelian traits, are different from each other.
Answer:
Incomplete dominance occurs when the dominant allele did not completely mask the effect of the recessive allele so that, the recessive allele could manifest some of its traits.Therefore the offspring exhibits some phenotype which reflects the blends of the two traits.( four O'clock flower)
However, in co-dominance(e.g AB blood group) none of the dominant allele is completely dominant over one another.That is the two allele of the same gene are present in the same offspring.Therefore the alleles shows their dominating effects, in the offspring, but no blend of the alleles as in the incomplete allele.
Explanation:
The "master controller" gland is the _____. thyroid adrenal pituitary thalamus
Answer:
Hypothalamus is the correct answer to the given question.
Explanation:
Hypothalamus in the brain is the tiny portion of the mind also the Hypothalamus is situated at the foot of the nervous system .The Hypothalamus is just next to the pituitary gland. Hypothalamus is produced by a variety of nucleus as well as the nervous fibers. It's own neuronal links
The main objective of Hypothalamus is to hormonal fluctuation as well as controlling the temperature of the body.All the other option is not the master controller gland that's why these are incorrect option .Answer:
The pituitary gland is the master controller gland.
Explanation:
I just did this: The pituitary gland is sometimes called the "master" gland of the endocrine system because it controls the functions of many of the other endocrine glands.
Mark's dentist gives him a shot before performing a root canal. The dentist says the shot is anesthesia and that Mark won't feel any pain. Mark feels his gums going numb, while the rest of his body is working fine. What has the anesthesia actually done? The anesthesia has blocked from carrying signals to the .
Answer:
The anesthesia has blocked the Inter-neurons from carrying signals to the brain.
They deactivated nerves in a certain area
The anesthesia has blocked sensory neurons from carrying signals to the brain.
How does dental anesthesia work?Anesthesia is usually given during tooth extraction, a root canal procedure, or while performing a tooth surgery. When anesthesia is injected it causes loss of sensation, temporarily without depressing the consciousness.
They inhibit the sodium inflow which is necessary for generating impulse. Without the generation of nerve impulses, the signal for pain is not transmitted.
Apart from being useful in certain medical procedures, anesthesia can cause several side effects such as headache, nausea, dizziness, insomnia, fever, and itching.
For a dental procedure like a root canal, anesthesia is usually injected into the inner cheek or gums.
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The given question is incomplete and the most probable question is:
Mark’s dentist gives him a shot before performing a root canal. The dentist says the shot is anesthesia and that Mark won't feel any pain. Mark feels his gums going numb, while the rest of his body is working fine. What has the anesthesia actually done?
The anesthesia has blocked_________ from carrying signals to the_____ .
1A). Interneurons
1B). Motor Neurons
1C).sensory neurons
2A). Spinal Cord
2B). Brain
2C). Muscles
What is the function of RNA polymerase in protein synthesis? a) It brings the tRNA to the ribosome. b) It bonds the DNA strand. c) It unzips the DNA strand. d) It translates the DNA strand.
Answer:
it has a DNA chromosome coz the dna molecule is packaged in to thread like structures called chromosomes..each chromosome is made up of dna tightly coiled many times around proteins called histons dat support its stracture
Answer:
The answer is C
Explanation:
just took the test and it was right:)