Answer:
The evidence we found that mitosis was a continuous process was that many of the cells we observed in a small part of the onion root was that they were between stages meaning they never stopped and started, the process kept going.
Explanation:
What causes a water molecule to be polar? (3 points)
The ocean sunfish (Mola mola) is a large, flat fish that spends most of its time in deep water
feeding mainly on jellyfish, Sunfish often have many species of copepods, small crustaceans,
that bury their heads into the soft tissue of the sunfish, Sunfish will swim to the surface of the
water and lie sideways, allowing seabirds to eat the copepods from their skin,
Which list describes the types of relationships the sunfish has with other marine organisms?
The group of choices is given below :
a. Seabirds: mutualism
Jellyfish: predation
Copepods: parasitism
b. Seabirds: parasitism
Jellyfish: commensalism
Copepods: predation
c. Seabirds: predation
Jellyfish: mutualism
Copepods: commensalism
d. Seabirds: commensalism
Jellyfish: parasitism
Copepods: mutualism
Answer:
The correct answer is option A. Seabirds: mutualism
Jellyfish: predation
Copepods: parasitism
Explanation:
In this given example sunfish have three different relationships with all three organisms that are related to it tat are seabird, jellyfish, and copepods.
With seabirds, sunfish shows mutualism as they both get benefitted from their relationship in which seabirds feed on copepods and sunfish get rid of their parasite.
With jellyfish, sunfish feed on the jellyfish mainly which suggests that they are predator and jellyfish are prey and their relationship is of predation.
With copepods, copepods bury their heads on the soft tissue of the sunfish so they are parasite on the sunfish that is example of the parasitism
Answer:
A. Seabirds: mutualism
Explanation:
A. Seabirds: mutualism
Jellyfish: predation
Copepods: parasitism
what are limiting factors in the tundra
Answer:
the lack of vcegitation
Explanation:
what are the possible phenotype of the offspring from the cross of the parental generation?
Answer:
Explanation:
maybe brown eyes dominate more
What describes the components of a coral reef community?
Which is the role of restriction enzymes?
to isolate the selected gene
to cut DNA into fragments of different lengths
to move and separate the strands of DNA
to join the sticky ends of DNA fragments
Answer:
to cut DNA into fragments of different lengths
Explanation:
A restriction enzyme is a protein that recognizes a specific, short nucleotide sequence and cuts the DNA only at that specific site, which is known as restriction site or target sequence.
More than 400 restriction enzymes have been isolated from the bacteria that manufacture them. In live bacteria, restriction enzymes function to defend the cell against invading viral bacteriophages. Restrictions sites in the viral genome (a "happy accident" of nature, as far as the bacteria are concerned, since they don't appear to have any specific function in the virus) are cleaved by the bacterium's restriction enzymes, fragmenting and destroying the DNA of invading bacteriophages before it can incorporate into the host's genome and take over the cell.
A bacterium is immune to its own restriction enzymes, even if it has the target sequences ordinarily targeted by them. This is because the bacterial restriction sites are highly methylated, making them unrecognizable to the restriction enzyme.
Isn't evolution fantastic?
The correct answer is option C i.e. to cut DNA into fragments of different lengths.
what is restriction enzyme?A restriction enzyme is a bacterial protein that cleaves DNA sequences at sequence-specific places, resulting in DNA fragments with known sequences on both ends.
Certain laboratory processes, such as recombinant DNA technology and genetic engineering, require the use of restriction enzymes.
There are four different types of restriction enzymes: type I, II, III, and IV, which differ principally in structure, cleavage site, specificity, and cofactors.
Both restriction and methylase functions are carried out by a single big enzyme complex in Types I and III enzymes.
The restriction enzyme is independent of its methylase in the Type II system.
Several thousand type II restriction enzymes have been identified from a variety of bacterial species.
These enzymes recognize a few hundred distinct sequences, generally four to eight bases in length.
Type III restriction enzymes are a group of endonucleases that recognize a non-pallindromic sequence, comprising two inversely oriented sites.
Type IV restriction enzymes cleave only methylated DNA and show weak sequence specificity.
hence, the correct answer is option B.
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Which of the following is a scientific question?
Answer:
A
Explanation:
That is the only option that can be an experiment and conduct research to answer.
The option that reveals the scientific question is as follows:
How does the release of heated water from a power plant into a river affect the native population of fish?Thus, the correct option is A.
What is a Scientific question?Scientific questions may be defined as questions that may direct to a hypothesis and assist us in answering or figuring out the reason for some observation.
This specific question clearly determines the effect of heat water from a power plant on the native population of fish with respect to the controlled environment that receives the normal and fresh water for the fish population.
The rest of the options are significant for analysis but do not contain more accurate and valid scientific questions in order to predict some outcome with respect to the hypothesis.
Therefore, the correct option for this question is A.
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In a lab investigation, one group of students (group A) measures the speed of a .1 kg toy car to be 2.5 m/s at the bottom of a ramp. Another group of students (group B) measures the speed of a car to be 3 m/s at the bottom of a ramp. The car's starting position at the top of the ramp is 1 m high. What is the potential energy of the car at the beginning of the experiment before its speed is measured?
Answer:
i think you have to do 1k *2.5 m/s= 2.5
and
3m/s *1m = 3
and then you do 3-2.5
If the rotational speed of Earth increased:
Answer:
The faster the Earth spins, the shorter our days would become. With a 1 mph speed increase, the day would only get about a minute and a half shorter and our internal body clocks, which stick to a pretty strict 24-hour schedule, probably wouldn't notice.
Explanation:
Organisms which must survive by taking food from other plants or animals are called?
Answer:
Parasite
Explanation:
or a parasitic relationship
Answer:
theives
Explanation:
Where is a suitable place for getting tested for a sexually transmitted infection (STI)?
at a clinic
at a drugstore
at home
at a friend’s house
Answer:
the answer to this is at a clinic
Explanation:
its more save there
Clinic is a suitable place for getting tested for a s exually transmitted infection (STI).
If an STI is left unchecked the problem can get worse. Many STIs can be effectively treated and those that can't be cured can often be better controlled with treatment.What is STI?S exually transmitted diseases s exually transmitted infections are generally acquired by s exual contact. The bacteria, viruses or parasites that cause s exually transmitted diseases may pass from person to person in blood, semen, or v aginal and other bodily fluids.Signs and symptoms that might indicate an STI include:
Sores or bumps on the g enitals.Painful or burning urination.Discharge from the p enis.Unusual or odorous vaginal discharge.Unusual v aginal bleeding.To know more about STIs here
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what charge does sg have
Answer:
Explanation:
Seaborgium is a synthetic chemical element with the symbol Sg and atomic number 106. It is named after the American nuclear chemist Glenn T. Seaborg. As a synthetic element, it can be created in a laboratory but is not found in nature. It is also radioactive; the most stable known isotope, 269Sg, has a half-life of ... nuclei (all positively charged) repel each other due to ...
What first caused people to consider that the continents were once one large landmass?
glacier evidence in warmer countries
continents looked like they fit together
studying the valleys of the ocean floor
similar fossils were found on many continents
Answer:
B- continents looked like they fit together =^.^=
Explanation:
I GOT IT RIGHT >:3
People believed that the continents were once one large landmass because the continents looked like they fit together.
What is the Pangaea?Pangaea refers to the one very big landmass which contains all the continents today fitted together.
Geologists believe that the while earth was once a large landmass without the continents as we have it today.
The first evidence for this belief is that continents looked like they fit together.
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Most mutations that cause cancer occur within body cells, and body cell mutations are not inherited. If cancer is not inherited, why does cancer statically appear to run in families?
Family members have a similar genetic make-up that may make them predisposed to cancer.
Family members are exposed to similar environmental conditions.
Family members have a widely varied genetic make-up that can be affected by specific mutagens.
Family members share the contagious mutagens that can be passed by close exposure.
Answer:
Family members have a similar genetic make-up that may make them predisposed to cancer.
Explanation:
Variation in certain genes can increase the risk of developing certain cancers. This is why certain cancers run in families. There are lots of examples where the risk factor is small, but in some cases, the risk factor is very large.
For example, mutations in BRCA1 are very highly linked to the risk of breast cancer. As a result, many women with mutations in this gene opt to get a mastectomy to reduce their chances of developing breast cancer.
What is the most common in a cell?
Answer: A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. so i would say one of those.
Explanation:
When an organism consumes other organisms for food they are called heterotrophs. When organisms can create their own food they are called autotrophs. Which kingdoms are autotrophic, heterotrophic, and which can be either? Animalia: Plantae: Protista: Fungi:
Answer:
Kingdoms that are autotrophic-
Plantae
Kingdoms that are heterotrophic-
Fungi
Animalia
Protista could be either or.
I think there is something about yeast than all the rest of fungi but you will have to look that up.
Explanation:
what happens when temperature increases? ( give THREEE examples !!!!!!
Answer:
molecules in the gas move faster. impacting the gas container more frequently and exerting a greater force. moisture most likely will increase too.
Explanation:
please help i’ll mark brainliest
Answer:
m
Explanation:
Answer:
Muscle Cell - Muscle Tissue - Biceps Muscle - Muscular System
what is the difference in potential between two charges called
Answer:
volt
Explanation:
The potential difference is expressed in volt (V). The potential difference between two points is said to be 1 volt if the work is done in moving 1-coulomb charge from one point to other is 1 joule. 1 volt= 1 joule/ 1 coulomb Unit for measuring the potential difference is volt and instrument used for measuring potential difference is a voltmeter.
Answer:
Its potential is taken as zero potential. Thus the positively charged conductor has more positive potential than the earth. A negatively charged conductor has negative potential less than that of the earth. The electric potential difference between two points in an electric circuit is the work done in moving a unit positive charge from one point to the other.
All living things need matter and energy to survive. Organisms get matter and energy from food.
Describe how organisms use matter and energy.
How far does an animal have to travel to obtain the abiotic factor water?
Answer:
Three fourth of the total earth is covered with water, 97 percent of which is there in sea's as saline water, the other 2 percent is there in the form of glaciers and the left out 1 percent is there as ground water.
Water is presence is abundance but it depends upon the geographical location where the animal is looking for water. There will be scarcity of water in the deserts because there is less rainfall over there, so it depends on the geographical location.
Which best explains how to oxygen Atoms,
each with six valence electrons can bond with each other?
Explanation:
Two oxygen atoms bonds with each other via covalent bonding.
In the formation of covalent bonds, two atoms with little to no electronegativity difference combines by sharing of the valence electrons. This why homonuclear molecules can be formed.
Two atoms of the same kind having zero electronegativity difference forms this covalent bonds. There is equal sharing of electron pair between the atoms and there is no electrostatic charge on the molecule.For the oxygen atom with 6 valence electrons;
two electrons are shared by each atoms to make a complete octet and a stable molecule.
Which type of rock forms as a result of cooling and crystallization?
igneous
metamorphic
clastic
sedimentary
As lactose approaches the active site of lactase, as shown in the image, which of the following occurs first?
The lactose molecule is broken into glucose and galactose.
Lactase shifts to its lowest free energy level to allow lactose to enter the active site.
Lactose creates a microenvironment as it approaches lactase to promote binding.
Temporary bonding occurs between the active site and the substrate, causing a conformational change.
Answer:
There is no image attachment, however, this question can be answered based on general understanding of enzymes. The answer is:
Temporary bonding occurs between the active site and the substrate, causing a conformational change.
Explanation:
Enzymes are proteinous molecules that acts as catalyst in biochemical reactions by speeding up the rate of reactions. According to this question, lactase is an enzyme that acts on lactose sugar and breaks it down into its monomeric unit (glucose and galactose).
All enzymes possess an active site, with which they bind to their substrate. In this question, the lactose (substrate) approaches the active site of lactase (enzyme), what occurs first is that a temporary bonding occurs between the active site and the substrate, causing a conformational change in the shape of the enzyme.
i need help answering these questions
Answer: A
Explanation:
The Pompeii worm was discovered near _______. a. a hydrothermal vent b. a sea mount c. Hawaii d. the great barrier reef Please select the best answer from the choices provided A B C D
Answer:
The answer is A. hydrothermal vent
Explanation:
I just did it
Alvinella pompejana is known as the Pompiee worm. This organims is found in the deep hydrothermal vents in the Pacific ocean. Thus, the correct option is A.
What is Pompiee worm?Alvinella pompejana, the Pompeii worm is a species of the deep-sea polychaete worm. It is an extremophile found only at the hydrothermal vents of the Pacific Ocean, discovered in the early 1980s off the Galápagos Islands by the French marine biologists.
The Pompeii worm (Alvinella pompejana) is a deep-sea polychaete vermiform extremophile. This organism can survive at extreme conditions. It is possible because of their bacterial coating which redistributes the heat to keep the worm cool. This bacteria not only help regulate the temperature of the worm but they also break down minerals from the vent to aid their host.
Therefore, the correct option is A.
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I NEED HELP , WILL GIVE BRAINLIST:
1.Write a brief essay comparing the process of resiration with the process of photosynthesis.
Photosynthesis is carried out by plants, alga, and blue green bacteria. It takes the energy from the sun and puts it into the bonds of sugar molecules. Photosynthesis only stores energy in food (glucose), we use respiration to get the energy out of food.
Respiration: Process that takes energy from sugar molecules and places it in molecules of ATP
Aerobic Respiration requires oxygen, and yeilds more ATP for a molecule of sugar than anaerobic (no oxygen) respiration.
Photosynthesis and Aeorbic Respiration are opposite reactions. They are also important in cycling oxygen, carbon, hydrogem and water through the environment.
Hope this helps!
What would be the complementary strand to ATC GTT ACG?
Plz help me!! will mark brailyest!!!
how does tempature impact air movement?
Answer:
The heating of the earth, which in turn heats the atmosphere, is responsible for the motions and movements of the air in the atmosphere. The faster molecules move, the hotter the air. As the molecules heat and move faster, they are moving apart.
Explanation:
Answer:
As you move higher off the ground, it gets colder *and vice versa*.
Explanation:
When we move off the ground, density is pulled down to the ground due to gravity. Therefore, it gets colder. It's also because of our atmosphere. (Vice versa, of course)
P.S. Density and gravity are also key parts of climate change, keep that in mind.
Which statement correctly describes both gases and liquids?