Which statement explains why the structure of sickle cells differs from normal red blood cells?
a. The gene mutation affected protein synthesis.
b. The gene mutation prohibited DNA replication.
c. The gene mutation inhibited the cell's ability to produce tRNA.
d. The gene mutation affected the cell's ability to produce ATP.​

Answer:

This would be an example of technology.

Explanation:

Artificial limbs, or prostheses, are used to replace a missing body part which may have been lost due to trauma, disease or congenital defect. The type of prosthesis a person can use is dependent on the individual, including the cause of amputation or limb loss, and the location of the missing extremity. These come in all shapes and sizes, for whatever you need.

Have a nice day!

Answer:

A technology, since the actual prosthesis is a human creation that solves a problem. Science is nothing physical. It is the combination of laws and theories that explain our universe and helps us make decisions. We don't really invent science, we describe it.

Science is ideas. Technology is human creations.

Science generally underpins all new technology.

In your human leg prosthesis example science is crucial in choosing (or developing) suitable materials for construction of the prosthesis. The material must be relatively stable, not break down into toxic substances and have good durability. Knowledge of human Biology is also important if you want to start replacing human body parts.

Basically chemistry and biology are important in the prosthesis development. There is also probably physics regarding tensile strength requirements.

The actual end result of the human prosthesis is a technology which solves a problem of degraded human parts.

So to reiterate, it is a technology.

Explanation:

Answer:

streak, pour

Explanation:

The streak method is the most popular technique used to isolate specific bacteria from a sample containing different microorganisms. In this technique, a sterile loop is employed to obtain an uncontaminated microbial culture. Colony picking refers to the process where colonies of pure bacteria are selected in order to duplicate them by transferring them into new agar plates. Moreover, the pour plate method is the most popular technique employed to count the number of colony-forming bacteria (i.e., bacteria/ml) in a specimen. The pour plate method consists of dropping the sample on a sterile plate and subsequently molten-cooled agar is then poured into the plate and mixed well with the inoculum.

Answer:

streak, pour

Explanation:

The streak plate method involves spreading an inoculum onto the surface of a plate in a pattern that results in isolated colonies in some areas of the plate after incubation, whereas the pour plate method involves diluting an inoculum into several melted agar tubes and then adding their contents into plates for solidification and incubation.

Answer:

A

Explanation:

Each nucleotide is appropriately paired according to the A-U/T-A and C-G pairing rules, so these are complementary strands.

The DNA strand that could have been the template for RNA 5' AUG GCG UUU 3' is 3' TAC CGC AAA 5'.Thus, the correct option is A.

A template strand may be defined as the DNA sequence that can duplicate itself during the process of mRNA synthesis. During this process, the cell utilizes a non-coding/antisense DNA sequence as a template to construct mRNA.

The production of the mRNA strand is done with the help of complementary base pairing with that of the template strand. In this process, A is bound to T and vice versa, while C is bound to G and vice versa.

In mRNA, the Thymine (T)  is replaced by Uracil (U). According to Chargaff's rule, the amount of ADENINE is equal to THYMINE, while the amount of GUANINE is equal to CYTOSINE.

Therefore, it is well described above.

To learn more about Template strands, refer to the link:

https://brainly.com/question/27025627

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Explanation:

An example of homologous structures in vertebrates is

where the wings of bats, front flippers of whales, and forelegs of four-legged vertebrates like dogs and crocodiles are all derived from the same ancestral tetrapod structure.

Explanation:

While only about 5% of bacterial species are pathogenic, it is assumed that about 70% and above are non-pathogenic.

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Answer:

The discovery that; The age of pots ( ancient ) that was used to hold milk in ancient times is as old as the Lactase-persistence mutations

Explanation:

The discovery that best supports the hypothesis is given in the question ( The hypothesis about he evolution of the lactase-persistence trait was driven by dairying )  is that The age of pots ( ancient ) that was used to hold milk in ancient times is as old as the Lactase-persistence mutations

Answer:

As population size approaches the carrying capacity of the environment, the intensity of density-dependent factors increases. For example, competition for resources, predation, and rates of infection increase with population density and can eventually limit population size.

Explanation:

Hope this helps! ^_^

Answer: Realized Niche

Explanation:

Realized niche is also referred to as Post Competitive niche and can be defined as a thriving environmental area created by a group of organisms to survive from an exsisting Faundermental  niche where interactions (predation, competition, light, water,food) with other organisms were limited and competed for.  

For example. In a tree( Faundermental niche) which houses different species of birds, In order to survive, each specie of the birds will create a realized niche so as to survive from predation, competition, light etc which the whole tree provides.

Answer:

Polar bears will go extinct by the end of the 21st century.

Explanation:

Polar bears live at the North Pole. Due to global warming, the ice at the poles is melting at an alarming rate. Soon there won't be any glaciers. Without the ice Polar bears will lose their home. The climate on Earth is becoming warmer day by day. So even if the Polar bears survive they will not be able to adapt to the warmer climate. Thus leading to their extinction.

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Answer:

MRI: Magnetic resonance imaging (MRI) uses the body's natural magnetic properties to produce detailed images from any part of the body.

CAT/CT scan: is an upgraded version of an X-ray, which it uses multiple x-rays taken from different angles all around a body. Then uses a computer to create complex cross-sectional images of parts of a body

PET scan: uses radioactive tracers dyes which put into a body(by being swallowed, injecting, etc.). Which is tracked by the PET scanner, creating an image. PET helps to visualize the biochemical changes taking place in the body, such as the metabolism (the process by which cells change food into energy after food is digested and absorbed into the blood) of the heart muscle.

X-ray: when a negatively charged electrode is heated by electricity and electrons are released. Which produces energy that is directed toward an anode at high velocity. Producing an X-ray when the energy collides with the atoms in the metal plate.

Ultrasound: using a small transducer it both transmits sound waves into the body and records the waves that echo back.

Explanation:

Answer:

I cannot figure out what it is you would like to know. Please think about how your question is worded, and make it clear. In usual medical terminology, static x-rays produce images but are not considered scans, whereas all the others are ‘scans’. CT uses X-rays to make a ‘scanned’ image of internal soft tissues that do not show well on simple static X-ray imaging. MRI uses magnetism and radio ‘waves’, ultrasound uses a version of echolocation, PET uses a radioactive ‘tracer’ compound.

Answer:

I think B

Explanation:

I think B

Sorry if I am wrong.

Answer:

a. air temperature

Explanation:

took test and got right :)

Answer:

Claim 2

Explanation:

Answer:

blout

Explanation:

odysse yware

Answer:

Endocytosis

Explanation:

the cell needs to use a vacuole to engulf the particle and take it in

Answer: Student 3

Explanation:

Answer:

id say rivers or sreams, i dont really know, i guess it really depends where it rains. if it rains over the ocean then all of it is going there

Explanation:

beeg brain power...or i could be wrong and have smol brain power

Answer:

a and i already answer this

Explanation:

Answer:

the classification of racial types is an arbitrary, culturally specific process.

Explanation:

Racism can be defined as an act, practice or policy by an individual, group of people or institutions which typically involves promoting the ideas and belief that a race is superior in comparison with another. Thus, it simply means the believe that a particular race has dominance over another (an inferior race).

An examination of the classifications of races from around the world indicates that the classification of racial types such as Africans, Americans, Indians, Asians, Black-Americans, Hispanics, etc., is typically based on individual perception, not objective and an impulsive (arbitrary), culturally inclined or specific process.

This ultimately implies that, the classification of racial types is considered not to be based on any form of objective distinction but may be defined by a person's culture.

A culture can be defined as the general way of life of a group of people living together in a particular location or society.

Basically, culture comprises of beliefs, values, behaviors, language, dressing, cuisine, music, symbols, arts, social habits, knowledge, customs, laws pertaining to a particular group of people living together in a society.

Answer:

Wind pollinated have light and small pollen grains to be easily carried away. They also lack petals or have small ones, so that the pollen can be exposed and easily swept by wind.

Explanation:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Answer:

(B) Active transport requires the cell to expend energy, while passive transport does not

Answer:

b

Explanation:

Answer:

B.smaller

Explanation:

yeah maybe because smaller fastest:)

Answer:

A

Explanation:

The weakest obviously doesn't. Small or big dosn't matter. So it must be A.

Answer:

Facilitated diffusion

Explanation:

Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.  

Facilitated diffusion is a passive transport process because they only depend on electrochemical gradients, so they do not need any energy to occur.

Answer:

(J) population; (K) phenotypes; (L) gene pool; (M) alleles; (N) natural selection; (P) species

Explanation:

A population is a group of organisms living in a particular geographical area that is capable of interbreeding, while a species is a group of populations that are capable of interbreeding and producing fertile progeny. In a population, genetic variation can enter from one of these sources: 1-recombination (i.e., the exchange of DNA between homologous chromosomes during meiosis), 2-mutations (i.e., genetic alterations resulting from DNA replication), 3-migration of individuals between populations, or 4-lateral or horizontal gene transfer (i.e., the acquisition of genetic material between individuals without direct vertical inheritance, it is extremely rare in higher organisms). Alleles are gene variants which are may be created, for example, through mutation, while the gene pool refers to the total genetic diversity (i.e., alleles) that exists within a population. Finally, natural selection refers to the evolutionary process of differential reproduction and survival through which populations adapt and change.