Answer:
C. Capillaries
Explanation:
form the connection between the vessels that carry blood away from the heart (arteries) and the vessels that return blood to the heart (veins).
What is the definition of salinity ?
Answer:
Salinity pertains to the degree of saltiness or the relative proportion of salt in a solution. ... By definition, salinity in relation to limnology refers to the total amount of dissolved solids in water in parts per thousand by weight.
Answer:
Salinity is the saltiness or dissolved inorganic salt content of a body of water. Substances that are dissolved in water are usually called solutes.
Explanation:
The destruction of an organism's habitat either through human impact or natural causes, such as a fire or flood, increases the likelihood that an organism could become extinct. Which of the following could also increase an organism's chances of extinction? A. an increase in predation, competition, and/or disease B. a lack of genetic diversity in an organism's species C. the inability to reproduce D. all of these
Answer:
D
Explanation:
all of those are likely to increase an organisms chances of extinction
What process is similar in function to genetic engineering but different in the mechanism it uses? A. Replication in a bioreactor B. Cellular Respiration C. Breeding for specific traits D. Genetic Calculus
Option C. Breeding for specific traits is a similar process in function to genetic engineering but different in the mechanism it uses.
Genetic engineering refers to the process of using recombinant DNA methodologies to alter the genome of a particular organism and thus obtain the desired characteristics/traits in organisms derived from them. An example of genetic engineering is the use of recombinant DNA methodologies to develop Escherichia coli strains that generate human insulin.Moreover, selective breeding refers to the process aimed at developing organisms with desirable characteristics by choosing parents with these traits in order to cross them and produce offspring with these phenotypic traits.For example, wheat plants with better yields can be obtained by crossing between wheat varieties that exhibit desired phenotypic traits.In conclusion, Option C. Breeding for specific traits has a similar objective that genetic engineering but the mechanism to reach this objective is different.Learn more in:
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1.What is meant by Plasma therapy ? Is it a remedial treatment for Coronavirus? Express your answer with valid points
Answer:
It is a therapy that involves the use of plasma from recovered patients (which is composed of antibodies against the virus)
Explanation:
The immune system of patients already recovered from viral diseases naturally generates defensive molecules that circulate in the blood. These molecules are known as 'antibodies', and they are localized in the plasma of the blood, which is composed of coagulation factors, albumin, fibrinogen and, of course, antibodies. These antibodies bind to specific viral antigens in order to promote their neutralization and destruction. In consequence, the plasma from recovered patients contains particular antibodies that may be used to treat specific diseases.
"When human settlers arrived on the island of Mauritus, they caused the Dodo bird species to become extinct within 50 years. What did the settlers do to cause their extinction?"
Answer:
It's commonly believed that the dodo went extinct because Dutch sailors ate the beast to extinction after finding that the bird was incredibly easy to catch due to the fact it had no fear of humans.
Explanation:
how can evidence from an experiment in relationship to the hypothesis
Answer:
The Hypothesis is a prediction based on the theory being tested.
The evidmence can support the Hypothesis or invalidate the Hypothesis.
Explanation:
Suppose you take glycine tRNA and modify it so that the glycine is changed to valine. You then find that the amino acid sequence in the generated proteins does not show the expected change. This result would suggest that the protein synthesis machinery recognizes the _______ and is _______ with what was actually found by researchers.
Answer:
Suppose you take glycine tRNA and modify it so that the glycine is changed to valine. You then find that the amino acid sequence in the generated proteins does not show the expected change. This result would suggest that the protein synthesis machinery recognizes the tRNA anticodon and is congruent with what was actually found by researchers.
Explanation:
A group of researchers led by Seymour Benzer demonstrated that the anticodon of the charged tRNA was recognized by the protein synthesis machinery, when they changed the amino acid sequence. This example shows the exact result as found by the researchers.
How much time is required for a P-wave to travel 6,000 kilometers?
Answer:
294.1 minutes
Explanation:
5,882 seconds (98 minutes) to travel 2,000 km.
2,000 x 3 = 6,000
5,882 seconds x 3 = 17,646
(294.1 minutes) to travel 6,000 km
One of the needs of today's taxonomy is:
O more information
O more species
O more interpretation
Ofewer species
Answer:
The correct choice is A
Explanation:
Taxonomy is the process of coining names for and categorising plants and animals into groups based on factors or qualities which are similar and or those which distinguish them.
Taxonomy helps to give meaning to the vast diversity of fauna and flora on planet earth.
Cheers!
Answer:
The answer is A
Explanation:
You can tell because the way that it is
Natural selection states that complex organisms evolved through random mutations alone. True or False?
Answer:
False.
Explanation:
This statement is false because organisms don't evolve - populations do. New gene variants (i.e., alleles) are produced by random mutation, and over the course of many generations, natural selection may favor advantageous variants, causing them to become more common in the population. However, because mutation rates are low relative to population growth in most species, mutation alone doesn't have much of an effect on evolution.
“Science is a beautiful gift to humanity ; we should not distort it.”-A.P.J. Abdul kalam.
How does the quote you chose relate to your ideas about the importance of studying science?
what is the body structure for chemical levels?
Answer:
Cellular, tissue, organ, organ system, and the organism level.
Explanation:
Which kind of research is most likely to improve the health of the
environment?
Answer:
The environment play a role in people mental and physical being.
Explanation:
Environment quality and human health remain factors and taking into multiple interactions economic and cultural context.
Environment through air pollution, chemicals, poor quality water and natural area loss, increase in rates obesity, diabetes, and diseases.
Environment factors are particular matter, environmental tobacco smoke leading,and indicative ranking of environmental impacts of health.
Environment across depend on the pressures relate to pollution and natural resources,pollution reduction and the natural environment distribute populations.
Environmental quality can be policy and population group, incomes, elderly and the educational status, environment burden they focus on health and complex causal path.
please answer fast
difference between fish and frog on the habitat and structure of heart
Answer:
the answer is this
Explanation:
hope this help
good luck for your homework
Which term refers to all areas of Earth where life exists?
biosphere
biome
community
ecosystem
The term that used to represent the land, water, surface and atmosphere of the whole planet where life exists is called the biosphere. So option A is correct.
What is the biosphere?Multiple species make a population, population makes a community, the community makes an ecosystem, ecosystem makes a biome, and biome makes a biosphere.
The biospheres can be classified as:
Lithosphere: It consists of the land part of the earth. The lithosphere comprises plains, plateaus, mountains, etc.Hydrosphere: The water constituent of the earth forms the hydrosphere. It includes rivers, oceans, lakes, ponds, etc.Atmosphere: The air surrounding the earth comprising of varying gases forms the atmosphere of the earth.So biosphere is the largest unit of ecology which include the whole planet like earth in it. So option A is correct.
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Explain the importance of neem, turmeric and blue green algae in agriculture
Answer:
Blue green algae are used to prepare bio fertilizers .Neem leaves are used in grain storage as bio pesticides . Turmeric is used in grain storage as bio pesticides .Hope this helps.....
Pls mark my ans as brainliest
If u mark my ans as brainliest u will get 3 extra points
Answer:
The answer is
Explanation:
Blue green algae is used in farming.
1.What is the Independent Variable?
5 points
Connor and Miguel want to investigate if the type of
fertilizer changes the color of their hydrangea flowers.
They select 10 hydrangea bushes and plant them in the
same yard with the same type of soil. Every bush gets 3
cups of fertilizer, but each receiving a different brand.
One bush gets no fertilizer. All bushes receive morning
sunlight and no afternoon sunlight. All bushes are watered
the same amount every other morning. After four weeks,
the boys observe the color of the blooms on each bush.
the bush
the soil
the fertilizer
the color of the plants
Answer:
the type of fertilizer
Explanation:
because independent variable is something that effects that the whole outcome of the experiment and here the type of fertilizer chosen is going to be the thing that is going to effect the ending result
Which state of water concentration is healthiest in an animal cell?
A. Isotonic
OB. Hypertonic
C. Equitonic
D. Hypotonic
Answer:
D. Hypotonic
Explanation:
Answer:
C. Isotonic
Explanation:
i took the quiz and its right
Some food material is given
below. What are the diffrent
possible ways of cooking them?
Find out and write them.
Meat - Groundnuts - Potatoes
Spinach
Answer:
Meat-Boiling, Grilling, frying and roasting
Groundnuts-frying,boiling
Potatoes-Boiling frying and roasting
What are the uses of the whorls of the flower
Answer:
The outermost whorl of the flower has green, leafy structures known as sepals. The sepals, collectively called the calyx, help to protect the unopened bud. The second whorl is comprised of petals—usually, brightly colored—collectively called the corolla.
Which pairings match protozoa with the structures they use to move? amoeba: flagellum; euglena: cilia; paramecium: pseudopod amoeba: pseudopod; euglena: flagellum; paramecium: cilia amoeba: flagellum; euglena: pseudopod; paramecium: cilia amoeba: pseudopod; euglena: cilia; paramecium: flagellum
Answer:
The correct answer is - amoeba: pseudopod; euglena: flagellum; paramecium: cilia
Explanation:
Protists use different type of structures for their movement known as pseudopods, flagella, and cillia.
Pseudopods are the structures found in amoeba in which flowing of protoplasm moves the amoeba forward.
A euglena moves by strikes or whip its flagellum, that is a long appendages, like propeller of a helicopter.
Cilia are thin, very small tail-like structure that stretched outward from the of body of paramecium.
Thus, the correct answer is - amoeba: pseudopod; euglena: flagellum; paramecium: cilia
What concept from microbiology is the most challenging and why? What can you do to learn more about this concept as you progress through nursing program and career?
Answer:
The overview of the particular topic is discussed in the section through the below clarification.
Explanation:
Microbiology seems to be the branch of philosophy that deals with some really small sentient creatures like bacteria as well as about there impact on human health. The profession deals with the analysis, component, as well as classification of such species, including to exploit as well as regulate their transactions.Nevertheless, their using it as manufacturing applications is usually a complex idea of microbiology. To understand everything concerning this idea, you will concentrate on several aspects of biotechnology to properly appreciate how would control micro-organisms to generate valuable material.During which stage of cellular respiration is glucose broken down into two molecules of pyruvic acid?
Answer: Glycolsis
Glycolysis happens in the cytoplasm of the cell. Afterwards, in the presence of Oxygen, the two molecules will undergo pyruvate oxidation in the mitochondrial matrix.
how can new stuff be made from old stuff
Answer:
BUY A NEW ONE
clean it
or sell it , with the money you sold the item use that money to buy a new one
Explanation:
Answer:
That is called upcycling. IKEA has started doing that with their products
Explanation:
which represents the optimal condition for most enzymes in the small intestine? 1. pH12 2.45°C 3. pH10 4.pH2 5.37 °C
Answer:
5.37 °C
Explanation:
The optimal condition for most enzymes in the small intestine is 37 °C.
Enzymes are responsible for mediating several biological processes in the human body. The optimal condition for enzymes in the small intestine has an optimum pH of about 7.5 and the temperature is 37 °C, which is the normal body temperature of the human body.
Hence, the correct option is "5. 37 °C".
A possible answer to a scientific question that can be tested is a
A garden has a length of 1.5 x102 m and a width of 0.5 x 102 m. what is the area of the garden?
Answer:
7.5 × 10^3 m^2
Explanation:
The garden described in this question takes the shape of a rectangle, which has a length of 1.5 x102 m and width/breadth of 0.5 x 102 m.
To calculate the area, we use the formula for calculating the area of a rectangle, which is;
Area = length (L) × width (w)
Area = 1.5 x102 m × 0.5 x 102 m
Area = 150 × 50
Area = 7500
This, the area of the garden is 7500m^2 or 7.5 × 10^3 m^2
Please help me...
Blonde hair (represented as b) is a recessive trait. If Julie has blonde hair, which of the following could have been her parents' genotypes?
A. Bb, bb
B. BB, bb
C. BB,BB
D. Bb,BB
I think its Bb, bb because if julie has blonde hair then it's most likely to be Bb, bb
If Julie has blonde hair, the genotypes of their parents could have been found to be Bb and bb. Thus, the correct option for this question is A.
What do you mean by Genotypes?Genotypes may be defined as the ultimate combination of alleles of those genes which are selected for specific studies in order to express some genetic characteristics.
According to the context of this question, if the trait of Blonde hair is recessive in nature. This means that both the alleles of this gene are recessive, i.e. bb.
Now, if Julie has blonde hair, which means both alleles are recessive. So, the genotypes of parents of Julie are either homozygous recessive or heterozygous in nature. This characteristic is well determined by option 1.
Therefore, if Julie has blonde hair, the genotypes of their parents could have been found to be Bb and bb. Thus, the correct option for this question is A.
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pros and cons of genetically modifying the animals people eat?
Answer:
Explanation:
GMOs are food items that have been made using genetic engineering techniques. ...
GMO foods are easier and less costly for farmers to grow, which makes them cheaper for the consumer. ...
The main concerns around GMOs involve allergies, cancer, and environmental issues — all of which may affect the consumer.
The advantages include improved human health, increased food production, reduced environmental impact, and so on. There is a risk that new diseases originating in genetically engineered animals will be transmitted to non-genetically engineered animals, including humans.
What is genetic engineering?Genetic engineering (also known as genetic modification) is a process that uses laboratory-based technologies to alter an organism's DNA makeup.
This could be as simple as changing a single base pair (A-T or C-G), deleting a region of DNA, or adding a new segment of DNA.
Gene therapy aims to modify genes in order to correct genetic flaws and thus prevent or cure genetic diseases. The goal of genetic engineering is to modify the genes in order to improve the organism's capabilities beyond what is normal.
The benefits include improved human health, increased food production, and reduced environmental impact, among other things. There's a chance that new diseases originating in genetically engineered animals will spread to non-genetically engineered animals, including humans.
Thus, these are some pros and cons of the genetically modified animals.
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A researcher wants to introduce the human gene encoding tissue plasminogen activator (used to dissolve blood clots) into a mammal so that the protein will be secreted into the milk of the mammary gland. For the researcher to succeed, the gene should be:
Answer:
In the given case, for the researcher to succeed, there is a need to place the gene next to the promoter sequence, which gets expressed in the mammary cells. The sequences of DNA, which illustrate that where the transcription of a gene by the RNA polymerase initiates is known as the promoter. These sequences are generally situated at the 5 prime terminals of the initiation site of transcription or are situated directly upstream.
