What is the term describing the process that occurs when a species evolves into a new species without a physical barrier separating populations?
Answer:
Sympatric speciation should be correct.
Explanation:
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A site at the 5' end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an
Answer:
A site at the 5′ end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an
Explanation:
in aerobic respiration, what is the ultimate fate of the electrons released from the breakdown of glucose?
Answer:
They are combined with oxygen and hydrogen ions to form water.
Explanation:
The electron released from the breakdown of glucose transfers in the electron transport chain and is used in the formation of a proton gradient across the membrane.
What is aerobic respiration?In the presence of oxygen gas, cells undergo cellular respiration, which is how energy from food is produced. The majority of plants, animals, birds, humans, and other mammals all engage in this sort of respiration regularly. As byproducts of this process, water and carbon dioxide are created.
The energy that was stored in carbohydrates and lipids during photosynthesis is released during the process of aerobic respiration and made available to living things. Glycolysis, the link reaction, the Krebs cycle, and oxidative phosphorylation are the four phases.
Protons are pushed out of the matrix and into the intermembrane space as a result of the electrons moving through the electron transport chain. The electrons eventually reach oxygen, which reacts with protons to create water.
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BRAINLIEST TO CORRECT ANSWER
Answer:
C (pictures a and b)
Explanation:
An element contains only 1 type of atom.
Which type of macromolecule has the function of storing and transmitting hereditary information or genetic information?
Answer:
Nucleic acids are key macromolecules in the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.
Explanation:
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Explain why contractile vacuoles would be of little value to one-celled organisms living in the ocean (salt water)
The organisms living in an aquatic environment have to undergo osmoregulation and survive in a hypotonic environment. The organisms such as paramecium, protists, and unicellular algae have contractile vacuoles.
The functions of the contractile vacuoles include:
1. Contractile vacuoles help in the osmoregulation, such that the movement of solute particles inside and outside of the cells.
2. The contractile vacuoles are also required to remove excess water from the organisms.
3. The vacuoles contract to discharge the fluid for the survival of organisms like paramecium and algae.
Thus, the contractile vacuoles contract to allow the organisms to survive in a hypotonic environment.
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Evolution represents biological change that accumulates over time. However, this change is not always apparent at every level in the biological hierarchy. Scientists most commonly observe the effects of evolution at the ________ level.
Answer:
population level
Explanation:
it ocurrs at the population level as scientists requires genetic variation between individuals of a population for natural selection
which solution is hypertonic
both
neither
the inside of the cell
the beaker
Answer:
the beaker
Explanation:
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Answer:
Prokaryotic and anaerobic
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The loyality and humbleness that one shows in all activities is called A.freedom B.cooperation C.openess D respect
Answer:
D
Explanation:
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Answer:
C
Explanation:
proteins have a chemical composition of hydrogen carbon oxygen nitrogen and sometimes sulfur
Cell process and transport toturial
What is the medical term for an undescended testicle?
Answer:
a. Cryptorchidism
Explanation: is correct
Suppose white and brown fur in a species of rodent were due to different alleles at the same gene. An F1 cross between true breeding brown and white lines is set up. What evidence would best support white fur being dominant to brown
An F1 cross between true breeding brown and white lines is set up. What evidence would best support white fur being dominant to brown -----
The best evidence to show that white fur being dominant is when all the offspring after the cross are white instead of brown
They are therefore expected to produce heterozygous lines.
The evidence that would best support white fur being dominant is when all the lines produced are white despite being heterozygous.
A dominant trait is known to mask the expression of other traits.
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What is the term used to describe homologous chromosomes exchanging genetic material during meiosis?.
The term used to describe homologous chromosomes exchanging genetic material during meiosis is called crossing over.
CROSSING OVER:
Crossing over is the process whereby non-sister chromatids of homologous chromosomes (similar but non-identical chromosomes from each parent) exchange genetic material. Crossing over occurs in the prophase I stage of meiosis where homologous chromosomes lie side by side to form a structure called tetrad or bivalent. Crossing over ensures genetic diversity in the offsprings produced meiosis.Learn more about crossing over at: https://brainly.com/question/18824252?referrer=searchResults
Answer:
crossing-over
Explanation:
visceral reflex arcs differ from somatic in that ________.
Explanation:
somatic reflex occurs in skeletal muscles whereas, the visceral reflex occurs in soft tissue organs.
The difference between visceral reflex arcs and somatic reflex arcs is that visceral turns require two motor neurons.
What are visceral reflex arcs?For instance, somatic reflexes require a direct link between the skeletal muscle and the ventral horn of the spinal cord. The central neuron of a visceral reflex sends a signal to a ganglion, which then sends another signal to the target effector.
While somatic reflexes are aware, visceral reflexes are unconscious. Compared to somatic reflexes, visceral reflexes entail a somewhat slower reaction time.
Visceral reflex arcs use two motor neurons along with glandular tissue and non-skeletal muscle to carry out a reflexive reaction. Skeletal muscles only have one motor neuron, therefore somatic reflex arcs include them.
Therefore, two motor neurons are involved in visceral arcs, which differ from somatic.
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what is the difference between ribose and deoxyribose
Energy from the sun , carbon dioxide from the atmosphere and water absorbed by the roots react to produce?
Answer:
What's your question?
Maybe Your talking about Photosynthesis
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
PLEASE HELP ME IM TIMED!
Answer:
pretty sure that is the mitochondria, the powerhouse of the cell.
Explanation:
This says it's produces energy through cellular respiration.
The plasma state occurs when _____.
o Solids are frozen
o gases are heated
o liquids are boiled
o solids are melted
Answer:
B. Gases are heated
Explanation:
Answer:
solids are melted
Explanation:
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How much work does an elephant do while moving a 50 N circus wagon 20 m?
Answer:
The elephant did 4000 N·m or 4000 J or 4 kJ of work
Explanation:
Mr. Allen wanted to fill balloons for a party. He rented a helium tank that contained 0.4 cubic meters of helium gas. He was concerned that the gas would not fill many balloons, but it filled 27 large balloons! Why was the small tank of helium gas able to fill so many balloons?
A. Helium mixed with air when it came out of the tank.
B. The helium expanded to fill its new containers, the balloons.
C. Helium molecules are very small in size.
D. The volume of gas in the balloons equaled the volume of gas in the tank.
Given what we know about the behavior of gases like helium, we can confirm that the small tank of helium was able to fill so many balloons because the helium expanded to fill its new container, which is the balloon.
Helium is a chemical element known as a noble gas. Like all other elements in a gaseous state, the atoms that comprise helium are spaced apart. This allows the gas to be compressed, a property that manufacturers of the gas take advantage of since they can compress a large amount of gas into a small container.
This is precisely what is happening in the question. The small tank of helium, despite being small in size, contains a large amount of compressed helium gas. Therefore, once it is released from the container, the gas expands to fill its new container, which in this case is the balloons, because of this, a relatively small tank of helium was able to fill many large balloons.
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Donde termina el impulso nervioso y que accion origina?
Por favor necesito ayuda con esto, yo ya respondí la parte de donde termina pero donde de verdad necesito ayuda es en la acción que origina, y gracias de antemano.
Answer:
Un impulso nervioso comienza cuando una neurona recibe un estímulo químico. El impulso nervioso viaja a través de la membrana del axón como un potencial de acción eléctrico hasta el terminal de axón. El terminal de axón libera neurotransmisores que llevan el impulso nervioso a la siguiente célula
Explanation:
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look at the picture below. what word describes what is happening to the nutrients and water in the biome?
Given what we know about the water cycle we can confirm that the process that happening in the biome is the process of condensation
Although the water cycle can be divided and subdivided into various processes, we can simplify it into four simple steps:
EvaporationCondensationPrecipitation CollectionThe one saw in the biome and one of the most essential parts of the cycle is condensation. It is the collection of water molecules into a single group that, when dense enough, fall back onto the earth as rainfall. In nature these take the form of clouds, meanwhile, in the biome, they appear as water on the sides of the container.
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Answer:
recyled
Explanation:
The daughter of a couple is colorblind. Her mother has normal vision. B - Normal; b- colorblind. The genotype of the mother is ______.
For the following DNA segment, please make the RNA segment that matches it.
ATT CGA AAG
Answer: DNA sequence: C C A C T C T T A C T T
mRNA sequence: G G U-G A G-A A U- G A A
Amino acid: GLY-GLU-ASN-GLU
Letter symbol: GENE
Explanation:
Whats up
how does carbon and nitrogen contribute to global warming?
Explanation:
Lower nitrogen levels in soil promote release of carbon dioxide from soils under high levels of atmospheric carbon dioxide, and could therefore contribute to furthering rising atmospheric greenhouse gases and climate change
since the parasympathetic division causes the heart rate to ____________ and the sympathetic division causes the heart rate to ____________ , this is an example of antagonistic innervation.
Answer:
since the parasympathetic divison causes the heart rate to decrease and the sympathetic divison causes the heart rate to increase this is an example of antagonistic innervation
Explanation:
which is not true about a wave in open
Ocen?
A. the wave form noves forward, but
the water particles do not advance appreciably
B. As the wave travles, water particles pass
the energy asong by moving in a circle.
C. water particles move in a circular Path
D. water particles travel with the wave
Answer:
D. water particles travel with the wave
Explanation:
The water particles travel with the wave is false about a wave in open Ocean. It gets scattered when passing through it.
A network of small arteries called the ___________ provides a blood supply to the tunica externa of very large vessels.
Answer:
vasa vasorum.
Explanation: