True or false: It is possible to predict the sequence of one strand of DNA if we know the sequence of the complementary strand.
Answer:
TRUE
Explanation:
Of the four animals (human,cat,whale,bat) which would you argue are the most closely related on the evolutionary tree?Justify your answer
Answer:
I think humans and whales are closely related on the evolutionary tree because they are both mammals and both have endoskeleton
What happens in the netlike structure labeled B in the diagram?
(A) Carbon dioxide and oxygen diffuse into the blood
(B) Nitrogen and oxygen are exchanged,
(C) Carbon dioxide and oxygen are exchanged,
(D) Nitrogen and carbon dioxide remain constant,
Select the correct answer.
What pollutant does this image convey?
A.
methane
B.
black carbon
C.
HFCs
D.
a persistent organic pollutant
E.
tropospheric ozone
Answer:
A persistent organic pollutant
Explanation:
POPs (Persistent organic pollutants) is what how we name the organic compounds that are resistant to the environmental degradation through biological, chemical, and photolytic processes. Some organic pesticides are the most widespread Persistent organic pollutants used in agriculture worldwide.
Please help. This in an crossword puzzle.
Leaves falling from a tree ,what is explanation
Explanation
~ Cliché as it may sound, leaves falling from a tree is caused by the gravity of the Earth.
GRAVITY~ Gravity is one of the reason and the driving force that made the universe possible. It is the entity that enables the sun to hold planets together in the solar system; the reason why Earth is revolving around the sun just like the moon orbiting the Earth.
~ Gravity has to do with everything on Earth -- leaf falling from the tree, ball bouncing up and down, ocean waves, and stalactites facing downwards.
Picture showing the gravitational relationship of Moon and Earth.
Explain how scientists foresee the fuel being used?
Answer:When biomass is harvested and processed, scientists can break down and convert the plant cells into renewable fuels or chemicals.
Explanation:
Creatinine has a renal clearance of 140 ml/min. Why is this?.
Answer:
It is secreted by the renal tubules
Explanation:
What would NOT be considered routine practice during or after conducting uncomplicated aseptic surgical procedures in nonhuman primates
We can confirm that actions that would not be considered routine after said procedure include all of which are not directed towards the care and recovery of the animal.
What would help the care and recovery of the animal?Routine practices include caring for the animal as it recovers from the effects of the anesthesia as well as administering fluids to keep it hydrated. Even pain control through the use of pharmaceuticals is considered normal practice, anything that would fall outside of these actions may be considered abnormal practice.
Therefore, we can confirm that actions that would not be considered routine after said procedure include all of which are not directed towards the care and recovery of the animal.
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Explain why most humans require a supply of glucose.
Answer:
Nerve cells and chemical messengers there need it to help them process information so basically without it your brain wouldn't be able to work well
Explanation:
Most humans require a supply of glucose because Nerve cells and chemical messengers they need it to help them process information. Without it, your brain wouldn't be able to work well.
Why do we need glucose everyday?
Glucose provides energy for physiological processes such as respiration, heart rhythm and the regulation of body temperature.
Why is glucose required in the cell?
Glucose provides quick energy for cells. Fat has more energy than glucose, but it requires some chemical conversions before we can get it into the process of cellular respiration, so it takes longer to use.
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Match de word with the correct definition
Mary loved having her goldfish tank in her office. She said watching the fish swim around was calming to her on stressful days. Mary thought that if 2 goldfish in her tank could make her less stressed then certainly 8 goldfish would be even better. After three days of having 8 goldfish in her tank, she noticed 5 of the fish began to sink to the bottom of the tank becoming less active than the remaining 3. A few days later the 5 sick fish died and the 3 remaining fish thrived. Use the data to help you choose three reasons the carrying capacity of the fish tank wasn’t able to accommodate all 8 goldfish.
A.
There was a limited supply of food available to sustain all 8 fish.
B.
There was an unlimited amount of space for the fish to swim.
C.
The amount of dissolved oxygen in the tank was not replenished quickly enough to sustain all 8 fish.
D.
The ammonia levels in the tank did not compromise the life of the fish.
Answer:
A
C
D
Explanation: Because since C is not right, we can immediately assume that the rest are the answers. It says that 3/4 are right, so it would be ACD, also they make sense.
Plasmolysis of bacteria in foods occurs when high concentrations of salt or sugar are added to the foods creating a
Plasmolysis of bacteria in foods occurs when high concentrations of salt or sugar are added to the foods creating a hypertonic environment.
Consider three independently assorting gene pairs, A/a, B/b, and C/c, where each demonstrates a typical dominance (A-, B-, C-) and recessiveness (aa, bb, cc) relationship. What is the probability of obtaining an offspring that is triply dominant from parents that are AaBbcc and AaBbCc
Assuming complete dominance and following the product probability rule, the probability of obtaining an offspring that is triply dominant AABBCC is 1/32.
What is complete dominance?
We talk about complete dominance when the dominant allele completely masks the recessive allele. It is an inheritance pattern.
This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant phenotype. The dominant allele is hiding the expression of the recessive allele.
Many genes show complete dominance.
In the exposed example, we need to cross AaBbcc x AaBbCc and calculate the probability of getting offspring that is triply dominant. To do it, we will follow the product probability rule.
What is the product probability rule?The product probability rule allows us to calculate the probability of occurrence of event A and event B at the same time.
It is about a joint probability of two or more events that might happen simultaneously, not excluding each other.
This rule is based on the dependence or independence of the events. If two events A and B are independent of each other, the occurrence of one of them does not affect the occurrence of the other one.
For independent events, the rule establishes that, given two different events A and B, the probability of occurrence of both together is
P(A∩B) = P(A) x P(B)
Since these are independent genes, for easier calculations, we can perform crosses that involve each of the genes separately -events-, and then multiply de results according to the genotype we are interested in (AABBCC).
Gene A
Parentals) Aa x Aa
Gametes) A a A a
Punnett square) A a
A AA Aa
a Aa aa
F1) 1/4 AA
1/2 Aa
1/4 aa
Gene B
Parentals) Bb x Bb
Gametes) B b B b
Punnett square) B b
B BB Bb
b Bb bb
F1) 1/4 BB
1/2 Bb
1/4 bb
Gene C
Parentals) cc x Cc
Gametes) c c C c
Punnett square) C c
c Cc cc
c Cc cc
F1) 1/2 Cc
1/2 cc
The probability of getting and individual with genotype AABBCC is
P(AABBCC) = P(AA) x P(BB) x P(CC)
P(AABBCC) = 1/4 x 1/4 x 1/2
P(AABBCC) = 1/4 x 1/4 x 1/2
P(AABBCC) = 1/32
The probability of obtaining an offspring that is triply dominant AABBCC is 1/32.
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A biologist was in a forest when he came across a family of squirrels hiding nuts for
the winter. The biologist was interested in this behavior, so he stayed and watched the
squirrels for a few hours. He recorded what he observed in a notebook. Which of the
following explains why this type of research is NOT considered an experiment?
O The biologist did not observe the squirrels for long enough to collect data.
The biologist did not collect valid data on the different species of squirrels present.
O The biologist observed the squirrels and did not test variables.
O The biologist came across the squirrels by chance and had no formal plan.
Answer:
biologist observed the squirrels and did not test variables
Media convergence is the result of the integration of the different media technologies. please select the best answer from the choices provided t f
Media coverage is used for different blogs, feeds, video content etc. It is the result of the different media technologies.
What are the types of media coverage?Like other works, media coverage is also require very hard work and risk accepting skills. Media coverage can have 3 types. They are:
Owned coverage: this is the coverage of one's own media.Paid coverage: this type of coverage include promotional events.Earned coverage: it includes unpaid coverage from other source.Thus, the given statement is true.
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Answer: true
Explanation:
did the air pockets in the bird bone affect the strength of the bone
Answer:
The pneumatization of avian bones allows them to be much more efficient with respiration and provide an extraordinary amount of strength compared to their weight. This connection of air sacs to the bone does cause some complications if the bone is damaged or broken.
2. Bacteriophages are
a. a form of bacteria.
b. enzymes.
c. coils of DNA.
d. viruses.
Answer: (d) viruses
Explanation:
Bacteriophage is a type of virus that infects bacteria.
NO LINKS AND NO FAKE ANSWERS. Rather than push a heavy box from one room to another, a worker chooses to place the box on a wheeled cart. In terms of friction, explain why moving the box on the wheeled cart is easier than pushing.
Answer:
The reason why that pushing something on a cart is easier than pushing it around without a cart is very simple actually. Pushing something on a cart is much easier because there is a much smaller act of friction. This results in a smaller strain on the body.
Explanation:
There isn't really a need for an explanation because it's that simple. I don't blame you for not knowing it though. People don't know everything.
Blood passes from the right ventricle to the _____ and then the _____ before reaching the lungs to pick up oxygen. Multiple choice question.
Blood passes from the right ventricle to the Pulmonary valve and then the Pulmonary artery before reaching the lungs to pick up oxygen
Blood circulation procedureWhen the blood enters the right ventricle it contracts and sends the blood through the Pulmonary valve before it reaches the Pulmonary artery which is passes the blood to the Lungs where it becomes oxygenated.
Hence we can conclude that Blood passes from the right ventricle to the Pulmonary valve and then the Pulmonary artery before reaching the lungs to pick up oxygen.
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The black-footed ferret lives on the grasslands of North America. The species is endangered because of habitat loss and disease. What change would cause the species to become extinct?
A. Habitat loss continues to such an extent that the carrying capacity for black-footed ferrets becomes zero.
B. Disease continues to kill a constant percentage of all black-footed ferrets during the first year of life.
C. The black-footed ferret population decreases until the birthrate equals the death rate.
D. The black-footed ferret population decreases low enough for other limiting factors to affect it.
Answer: A is the answer
Region Safety Index
higher is
better
Health Care
Index
higher is
better
Pollution
Index
lower is
better
Climate
Index
higher is
better
A
75.87
75.69
26.24
88.81
B
45.00
70.51
61.24
85.63
с
78.65
84.47
20.09
90.05
D
50.80
72.99
41.79
87.94
Use the quality of life graph above to rank regions from HIGHEST TO LOWEST quality of life
(highest first and lowest last). Sa
OD, C, BA
O A, B, C D
O B, D, C, A
O C, A, D,B
The ranking of regions from high to low life quality is: O C, A, D,B since these regions show a gradation from highest to lowest in the indices of quality of life.
What is quality of life?The quality of life is a measure how comfortable life is for individuals and how the living environmental conditions of a place which can contribute to either the prolonging or reduction of the lifespan of individuals.
The indexes for measuring quality of life include:
Region Safety Index - higher is betterHealth Care Index - higher is betterPollution Index - lower is betterClimate Index - higher is betterBased on the indices of quality of life and the data given, the ranking of regions from high to low life quality is: O C, A, D,B.
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When a group of proteins such as interferons and interleukins are released by the t cells, intercellular signals begin the immune response, what is the medical term used for the group of proteins?.
The cytokine describes the group of proteins such as interferons and interleukins that regulate cell communication, mainly produced by the immune system in normal and pathological conditions.
What is a cytokine?They are messenger molecules with a glycoprotein structure, whose lifetime is short and generally secreted in cascades.
They are produced by different activated cells, responsible for innate and/or acquired immunity, and regulate the immune and inflammatory response.
Therefore, we can conclude that the cytokine describes the group of proteins that regulate cell communication, mainly produced by the immune system in normal and pathological conditions.
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Who enunciated the inverse square law of electrical attraction
A. James Watt
B. Robert Boyle
C. Joseph Priestly
D. James Maxwell
Use the four population pyramids above to answer the question. Which country's population is
significantly decreasing? Sb
O Brazil
O Japan
O Afghanistan
O US
Hi I know this is quite a few question but I really need help, Thanks!
3: B
4: B
5: C
6: C
7: A
8: C
9: C
10: D
11: B
12: D
Sorry for the late responce, I was on holiday !! (▱˘◡˘▱)
Single-celled plantlike protists and photosynthetic bacteria make up communities of.
Which of the following terms denotes the chromosomes which are similar in size, shape, and genetic material?
Answer: Each pair of chromosomes consists of two chromosomes that are similar in size and shape. They contain the same genes at the same loci, though they may have different alleles. These pairs of chromosomes are known as homologous chromosomes or homologs.
Explanation:
RNA is made because DNA is always in the nucleus,but ribosomes for making proteins are found in the _______
Answer:
Cytoplasm
Explanation:
In eukaryotes, there is a definite nucleus where the ribosome and mRNA production takes place. The ribosomes and mRNA come out of the nucleus into the cytoplasm where the ribosomes work upon and catalyze the formation of proteins. Meaning that in eukaryotic cell, ribosomes make proteins in the cytoplasm.
Explanation:
Ribosome existed in the rough endoplasmic reticulum and existed freely in cytoplasm
The anterior and posterior lobes of the pituitary differ in that _____.
Answer:
-The posterior pituitary does not secrete its hormones but acts as an extension of the hypothalamus, storing those hormones.
-The anterior pituitary secretes its hormones (predominantly tropic hormones).
Explanation:
