Answer:
They use bubbles.
The most well-known method for Baleen whales to catch herring fish is the bubble net feeding method. Therefore, option (3) is correct answer.
What is the bubble net feeding method?Baleen whales, sometimes known as whalebone whales, are a suborder of carnivorous marine mammals that belong to the infraorder Cetacea. To filter planktonic organisms from the water, baleen whales use keratinaceous baleen plates in their mouths, which are similar to whalebones.
When feeding by bubble-net, whales descend to great depths below schools of fish and then use the bubbles released from their blowholes to daze and catch fish that are swimming closer to the surface. In most cases, one whale will take the initiative, followed by the other members of the group.
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inhumane farming methods are detrimental to both crops and animals .Critically discuss how animals get affected
Answer:
In an ecosystem when plants don't exist or dies out all animals while die because herbivorous depends on plants when plants die they also die making the carnivores also die due to lack of food
There are lots of harsh and cruel farming methods that are very harmful to crops and animals, If not well controlled these farming method could pose a very serious threat to crops and animals thereby leading to shortage in food supply.
These methods include;
- Uncontrolled dumping of waste; waste products from farm animals should be dumped properly to avoid contamination and spread of diseases.
- small farm space; a lot of farmers today do not have enough land/fields where animals can roam free, these animals are secluded to a tiny space causing cross contamination between these animals
- giving growth hormones to farm animals is also a very bad practice, these animals should be allowed to grow at their own pace.
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What parts make up the backbone of DNA
Explanation:
DNA is made up of the sugar-phosphate backbone.
It consists of 5-carbon deoxyribose sugars and phosphate groups. These sugars are linked together by a phosphodiester bond, between carbon 4 of their chain, and a CH2 group that is attached to a phosphate ion.
what is a relative risk?
Answer:
A measure of the risk of a certain event happening in one group compared to the risk of the same event happening in another group.
Why are stromatolites not considered the earliest form of life?
Explanation:
number number 539 34 is divisible by which of the following numbers
Mass 112.5g/ Volume ? = Density 75 g/cm3 *
Answer:
The volume is 8,437.5 cubic centimeters.
an organism with one set of chromosome is called
Answer: A haploid
Explanation: Mark brainliest plz
besides water lights and a few nutrients what do algae need in order to grow
Answer:
Hey There!
Apart from a few nutrients, Algae need...
CARBON DIOXIDEAn alternative form of energy when the Sun isn't shining (Night) ie SUGARA suitable environment TEMPERATURE of between 20 and 30 degrees CelsiusExplanation:
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what does it mean to think like a scientist
Answer:
Thinking like a scientist is based on asking and answering questions. ... They may design and perform an experiment to try to answer their question and test their hypothesis. From the results of their experiment, scientists draw conclusions. A conclusion describes what the evidence tells the scientist.
Explanation:
The genetic information contained in DNA consists of a linear sequence of coding units, known as codons. Each codon consists of three adjacent DNA nucleotides that correspond to a single amino acid in a protein. The E. coli DNA molecule contains 4.7 x 10^6 base pairs. Determine the number of codons that can be present in this DNA molecule.
Answer:
The correct answer is - 1.57 × 10⁶ codons.
Explanation:
Given:
No. of base pairs in E.coli DNA = 4.70 × 10⁶
we know :
1 codon = 3 DNA nucleotides
Solution:
No. of of base pairs in DNA = No. of nucleotides in a single strand
= 4.70 × 10⁶
It must have 1/3 this number of triplet codons
= 4.70 × 10⁶ / 3
= 1.57 × 10⁶ codons.
Thus, the correct answer is - 1.57 × 10⁶ codons.
A- 0.455 g B- 5.50 g C. 4.56 g D. 0.55 g
Answer:
Maybe it is 5.50 because not much information is given to calculate it or to find it.
Which gas in Earth's atmosphere forms ozone?
oxygen
O nitrogen
water vapor
O carbon dioxide
Answer:
Hey There!
Your answer will be OXYGEN!
Explanation:
Ozone is a layer of gas in our atmosphere which protects us from those harmful UV (ultraviolet) Radiation from the Sun...
It's basically OXYGEN but it had been converted into a different form!
OZONE ([tex]O_{3}[/tex]) AKA TRIOXYGEN...
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Answer: The answer is: oxygen
Explanation: I have my ways ;>
Which key feature of living organisms is best described as the transmission of DNA from parent to offspring?
Answer:
But what were the key scientific discoveries that helped establish these principles? As it turns out, the connections between genes, chromosomes, DNA, and heredity were ... each parent contributed a form of element to the resulting offspring. ... The most remarkable feature of both Mendel's and Darwin's proposals is that ...
Explanation:
Inheritance is the key feature of the living organisms which can be best described as the transmission of DNA from parent to offspring. Thus, the correct option is C.
What is Inheritance?Inheritance is the process through which the genetic information is passed on from the parent generation to the child. This is why, the members of the same family tend to have similar kind of characteristics.
Genetic information is the DNA or chromosomes which is transferred from the parents to offspring through fertilization of gametes. Gametes are the haploid cells which contain genetic information from both the parents which combine to form an offspring with characteristics similar to both the parents.
Therefore, the correct option is C.
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5. Which 3 structures have 2 membranes? (1pt)
a. Endoplasmic reticulum, nucleus, mitochondria
b. Chloroplast, golgi apparatus, mitochondria
C. Vacuole, nucleus, ribosomes
d. Nucleus, mitochondria, chloroplast
Answer:
d. Nucleus, mitochondria, chloroplast
Describe the use of the symbols + and - when characterizing a trophies cascade
Answer:
Trophic cascade, an ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal changes in the relative populations of predator and prey through a food chain, which often results in dramatic changes in ecosystem structure and nutrient cycling
The use of the symbols + and - in a trophic cascade is specific to the removal or addition of top predators to the respective trophic levels.
What do you mean by Trophic cascade?A trophic cascade may be defined as powerful indirect interactions that can control entire ecosystems irrespective of organisms or species.
The symbol + denotes the positive effect of predators on the trophic level of their prey, while the symbol - denotes the negative effect of predators on the trophic level of their prey.
Therefore, the use of the symbols + and - in a trophic cascade is specific to the removal or addition of top predators to the respective trophic levels.
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If an enzyme has specific pH requirement, it will have a ____ slope. In contrast, an enzyme that can function in a range of pH values will a ____ apex.
Answer:
no ideal
Explanation:
please let me know the answer
The structure of each kind of body cell is suited to its_____
Answer:
Unique function
Explanation:
The structure of each kind of body cell is suited to its unique function.
What is cell ?The fundamental structural and operational unit of all living things is the cell. Each cell has a cytoplasm that is surrounded by a membrane and is home to a variety of macromolecules, including proteins, DNA, and RNA, as well as numerous tiny molecules that are nutrients and metabolites.
Cells can develop specialized functions and perform a variety of tasks within the cell, including protein synthesis, DNA repair, replication, and motility. Within the cell, cells can specialize and move around. Due to their small size, the majority of cells are measured in micrometers.
Only under a light microscope can the majority of plant and animal cells, which range in size from 1 to 100 micrometers.
Therefore, The structure of each kind of body cell is suited to its unique function.
Therefore, The structure of each kind of body cell is suited to its unique function.
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what are 2 types of scientific investigation?!?!?!?!??!?PLZ I WILL GIVE BRAINLIEST ANSWER AND POINTS
Answer:
Controlled Investigation
Field Investigation
Explanation: In a controlled experiment, the scientist has total control over the environmental conditions. The temperature, humidity, amount of light, amount of noise, materials, etc. can all be controlled and monitored by the scientist throughout the investigation.
A field investigation involves observing and measuring plants and animals (including people) in their natural habitat or environment without changing, harming, or altering the setting or any part of the test subjects. Like in a controlled experiment, the scientist chooses to observe and measure how one change (IV) has a measurable effect (DV) on something else.
List at least four characteristics of bases.
Answer:
1. Slimy or soapy feel
2. Bitter taste
3. Bases turn red litmus paper blue
4. Bases are substances that contain metal oxides or hydroxides
Explanation:
Answer:
1. Slimy or soapy feel
2. Bitter taste
3. Bases turn red litmus paper blue
4. Bases are substances that contain metal oxides or hydroxides
Explanation:
Use the image to answer the question.
An image at left labeled aluminum atom has a mix of red and blue balls in its center and 3 concentric black rings around the center. The inner ring has 2 small green balls on it. The middle ring has 6 small green balls on it. The outer ring has 3 small green balls on it. A blue arrow leads to an image at right labeled aluminum ion with a mix of red and blue balls in its center. 2 concentric black rings around the center. The inner ring has 2 small green balls on it. The middle ring has 6 small green balls on it.
What is the name of the aluminum ion?
Al–1
Al+2
Al–3
Al+3
Answer:
Al+3
Explanation:
Question:
Use the image to answer the question.
An image at left labeled aluminum atom has a mix of red and blue balls in its center and 3 concentric black rings around the center. The inner ring has 2 small green balls on it. The middle ring has 6 small green balls on it. The outer ring has 3 small green balls on it. A blue arrow leads to an image at right labeled aluminum ion with a mix of red and blue balls in its center. 2 concentric black rings around the center. The inner ring has 2 small green balls on it. The middle ring has 6 small green balls on it.
What is the name of the aluminum ion?
Al–1
Al+2
Al–3
Al+3
Answer:
Al+3
Explanation:
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How many oxygen molecules can one hemoglobin molecule transport?
Answer:
four oxygen molecules
Explanation:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
Which statement differentiates between prokaryotic cells and eukaryotic cells?
Answer: The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.
Explanation:
Answer:
definettly 12345678900000101010101010110001110101
A recessive allele inherited in a Mendelian manner causes the disease cystic fibrosis. A phenotypically normal man whose father had cystic fibrosis, and a mother who comes from a long line of non-affected people, marries a phenotypically normal woman from outside the family. If the frequency in the general population of heterozygotes for cystic fibrosis is 1 in 25, what is the chance that the couple's first child will have cysitc fibrosis
Answer:
The chance that the couple's first child will have cystic fibrosis = 1/100
Explanation:
Since both parents are phenotypically normal, it means that they are both heterozygous for cystic fibrosis.
The probability of a cross of two heterezygotes for a recessive allele to produce an offspring having two recessive alleles is 1 : 4 in accordance with Mendelian inheritance.
The initial probability of the couple's first child to be have two allelic pairs for cystic fibrosis = 1 : 4.
However, the frequency in the general population of heterozygotes for cystic fibrosis is 1 in 25.
Therefore, the chance that the couple's first child will have cystic fibrosis = 1/4 * 1/25 = 1/100
One adaption to life in flowing water is what?
Answer:
Explanation:
There are many options, here are a few choices:
Fast moving water tends to be colder than slow water; some of it originates as snow melt on the sides of mountains, for example. For this, animals in fast water tend to be more cold resistant. This is why you do not see fish like freshwater trout in equatorial regions. These animals struggle and die in slow, warm water.
Fast moving water means that if the animal or plant wants to stay put, it must resist the flow. Fish tend to be far more muscular and lean in these places, while insects like stoneflies, mayflies, and other larvae have ways to secure themselves to rocks and plants while growing. Plants develop strong root systems, and algae hold fast in rocky crevices in the river. Some animals also have suction in order to stay in place where there is fast flowing water.
Some animals have to adapt their reproductive systems as well. Because finding a mate is difficult in the sweeping waters, breeding tends to happen all at one time. As an example, salmon have runs, where thousands of fish all swim upriver at once to breed, can dramatically alter the surrounding ecology of the river. Insects like mayflies have hatches, where hundreds of thousands of flies swarm into the air at once to breed and lay eggs.
Fibers used in textiles can be either natural or synthetic. Cotton and Linen are different variants of cellulose fibers. Wool is natural polyamide (protein) fiber. Nylon and polyester are variants used in synthetic fibers. There are 35 kinds of amino acids used in making proteins, and most proteins have 50-1000 amino acids in the chain. What does this say about the number of different kinds of proteins available in nature
Answer:
Proteins are very varied, and the number of junctions and the arrangement in which these junctions are found depends on this.
In addition to taking into account the amount of amino acids.
Explanation:
Proteins in nature are found in great variety, this is due not only to the amount of amino acids present, but the multiple combination options between these amino acids, we must not ignore the unions, that is why some proteins are more complex what others.
Proteins have different unions and this makes it have different coformations, there are primary, secondary, tertiary and quaternary unions, if the protein has all these unions it is considered complex, whereas if it has the simplest it is considered a simple protein.
imagine you have data on the jaw structure of hundreds of species, and information about what each species ate. How could you use this information to figure out what the new species eats.
Answer:
shoot a irish spring green like flight
Explanation:Imagine you have data on the jaw structure of hundreds of species, and information about what each species ate. How could you use this information to figure out what the new species eats?
Answer:
i don't think you can if evolution is a thing but if it is then you might be able to find what they eat
Explanation:it is right
An individual with Huntington disease has two normal parents. What are plausible explanations for this pattern of inheritance? Check all that apply. Check All That Apply A spontaneous mutation occurred in the mother's germline to produce a mutant HD allele. A spontaneous mutation occurred in the mother's germline to produce a mutant HD allele. A spontaneous mutation occurred in the father's germline to produce a mutant HD allele. A spontaneous mutation occurred in the father's germline to produce a mutant HD allele. A spontaneous mutation occurred in the individual's germline to produce a mutant HD allele. A spontaneous mutation occurred in the individual's germline to produce a mutant HD allele. Huntington disease shows incomplete penetrance.
Answer and Explanation:
The Huntington disease is caused by a mutation in the gene that codifies for the Huntingtin protein (Htt). The mutation produces an altered form of the protein leading to the neuron´s death in certain areas of the brain.
The Huntington disease characterizes for being,
Hereditary, passing from generation to generation. To express the disease, a person must have been born with an altered gene. Autosomal, affecting men and women equally, because the mutated gene is located on an autosomal chromosome.Dominant, which means that by getting only one copy of the altered gene coming from any of the parents, the receiving person will express the disease. The mutation in the gene dominates over the normal gene copy. Expressed by heterozygosis. Most people affected by the disease are heterozygous, with a normal copy and a mutated copy.There are just a few cases all around the world (3% approximately) in which the disease is expressed with no family history. The progenitors are not affected by the mutation. These cases are very rare and are called "de-novo" mutations. A new mutation is spontaneously produced and it is not inherited from any of the parentals. It consists of an increase in the number of CAG repetitions. In a normal person, the number of CAG repetitions is less than 35. When there are 40 or more repetitions it occurs the disease. But when there are between 35 and 39 repetitions, the penetrance of the disease is incomplete. This is a "gray zone". Those alleles that fall in the gray zone are unstable and might produce the HD. Individuals with these unstable alleles have a tendency to increase the number of repetitions from generation to generation until the number reaches 40 repetitions and the person expresses the disease. This usually occurs in the paternal germinal line, as it is particularly unstable in sperm and probably meiosis greatly affects their instability, causing an increase in the number of CAG repeats.
What should you do if you break glass in the classroom?
Nothing
Hide it
Tell the teacher immediately
Clean it up and put the glass in the broken glass box.
Is:Tell the teacher immediately
Answer:
tell the teacher immediately
Sickle cell anemia is a recessive trait in humans. In a cross between two parents who are heterozygous.a. Trueb. False
Answer:
True
Explanation:
This is because in the two hetero zygote parents the SS traits are dominated by the dominant A geneotype. Therefore in the AS parents the S-genotype could not manifest, and therefore recessive.
However,when the two recessive genes are crossed in the parents at meiosis 1,the recessive genes were randomly selected to give the SS genotype to the parents.This is an example of autosomal recessive pattern. The chances of inheritance of the gene for the two parents is 25% based on Mendelian's patterns
it is an inherited disorder in which the the percentage of normal biconcave shape Hb is low in the blood, but more of sicked shape ,therefore given the blood of the individual sickle shaped RBCs. It is due to genetic mutation due to single nucleotide substitution of amino acid Glumatic acid with Valine.
The reduction of the surface area for the transport of oxygen,leads to the deficient oxygen supplies to the tissues,and clogging of blood vessels by sickle rbc leading to pains
The LLQ is located
___ to the LUQ.
anterior
posterior
Superior
Distal
Inferior
The anatomical terms are used to define the anatomical positions. The LLQ (Left lower quadrant) is located inferior to the LUQ (left upper quadrant). Thus, option e is correct.
What are anatomical terms?Anatomical terms are used to define the exact position and location of the organs and the structures of the body in reference to each other. They are the directional terms that provide the details of the direction an organ is situated at.
The directional anatomical terms include superior, inferior, posterior, anterior, distal, proximal, caudal, occipital, peripheral, central, etc. The LLQ (Left lower quadrant) is the abdominal section that is located below the LUQ (left upper quadrant).
The anatomical term inferior is used to show the structure that lies below the reference organ. On the other hand, the superior shows above, the posterior shows behind, the anterior shows the front area, and the distal shows structures located further away from the origin.
Therefore, option e. the left lower quadrant is inferior to the left upper quadrant.
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Explain one way a mutation can be beneficial to a bacterial cell.
Answer: They lead to new versions of proteins that help organisms adapt to changes in their environment. Beneficial mutations are essential for evolution to occur. They increase an organism's changes of surviving or reproducing, so they are likely to become more common over time
Explanation:
Bacteria can be beneficial to evolution.
"Beneficial mutations are essential for evolution to occur. They increase an organism's changes of surviving or reproducing, so they are likely to become more common over time."
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