Answer:
The correct answer is - option A is continuous variation that follows a geographic continuum.
Explanation:
A cline is a slow change in the physical and genetic traits of a population or species across a geographical difference or gradient. If a species present in a very large area, there would be some members live on different environmental condition in comparison to others.
By this gradient members of species show continuous variation that follows a geographic continuum. For, example, In a species of warm-blooded animals have large body size in cooler area than in warmer area.
Thus, the correct answer is - option A is continuous variation that follows a geographic continuum.
Consider this microscopic image of bacteria. Rod-shaped bacteria is shown. Based on its shape, what is most likely the form of this bacteria? coccus staphus bacillus spirillum
Answer:
C) Bacillus
Explanation:
Trust the process
characters of a fertile soil
Answer:
There are so many characteristics of fertile soil like: It is rich in nutrients necessary for plant nourish ment. It includes nitrogen , phosphorus and potassium. It consists adequate minerals such as boron, chlorine, cobalt, iron, magnese, sulphur etc.Explanation:
Hope it helps you.Where near your home do you think the highest level of photosynthesis is happening? Think about
where in your area photosynthetic organisms are growing.
Answer:
Depends where the individual lives.
If the person lives in a rural area near a forest, photosynthesis would most likely occur in the forest.
If the person lives in an urban area in a city, a park or garden would have the highest level of photosynthesis occurring.
Answer:
There is a wonderful big park near my house with a lot of trees and plants, and I believe there is where the most photosynthesis occurs.
Explanation:
Which is the pair of the enzyme activities most significantly affected by glucagon- and insulin-dependent phosphorylation and dephosphorylation of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase (PFKFB)?
a. hexokinas ::::: glucose-6-phosphatase
b. phosphofructokinase ::::: Fructose-1,6-bisphosphatase
c. pyruvate kinase :::::: pyruvate carboxylase
d. glycogen synthase ::::: glycogen phosphorylase
e. None of these
Answer:
b. Phosphofructokinase; Fructose-1,6-bisphosphatase
Explanation:
Glucagon is a hormone which functions to initiate gluconeogenesis whwreas insulin functions to initiate glycolysis.
Fructose-2,6-bisphosphate (F26BP) is an allosteric regulator of the glycolytic and gluconeogenic enzymes phosphofructokinase-1 (PFK-1) and fructose-1,6-bisphosphatase (FBPase-1).
It stimulates glycolysis and inhibits gluconeogenesis by binding to its allosteric site on phosphofructokinase-1 reducing its affinity for the allosteric inhibitors ATP and citrate .
It is formed by phosphorylation of fructose-6-phosphate catalyzed by phosphofructokinase-2 and is broken down by fructose-2,6-bisphosphatase which are two separate enzymatic activities of a single, bifunctional protein (PFK-2/FBPase-2).
Phosphorylation of PFK-2/FBPase-2 due to glucagon release enhances its FBPase-2 activity thereby stimulating gluconeogenesis and inhibiting glycolysis.
Dephosphsorylation of PFK-2/FBPase-2 due to insulin release enhances its PFK-2 activity, thereby stimulating glycolysis and inhibiting gluconeogenesis.
How does mitosis introduce genetic variation into offspring
Answer:
it is when a domminant allele mixes with a recesive allele creating a new pattern or genetic variation such as spot colors of a dog
Identify two structural features of purines and pyrimidines. Purines contain only three ring nitrogen atoms. contain only two ring nitrogen atoms. contain four ring nitrogen atoms. contain two heterocyclic rings. contain one heterocyclic ring.
Answer:
1) Purines contain only four ring nitrogen atoms while Pyrimidines contain only two nitrogen ring atoms
2) Purines contain two heterocyclic rings while Pyrimidines contain one heterocyclic ring
Explanation:
Purines and Pyrimidines are two classes of nitrogenous bases that make up nucleic acids. They are both heterocyclic aromatic compounds which contains nitrogen atoms in their structure. Although, they are similar but have distinct features namely:
Purines are ring molecules which consists of four (4) nitrogen atoms in their aromatic structure. They are structures with two heterocyclic rings consisting of five (5) carbon and four (4) nitrogen atoms. Adenine and Guanine are the purines in nature.
On the other hand, Pyrimidines are another ring molecules consisting of two (2) nitrogen atoms in their aromatic structure. Their only ring i.e. 1, is also heterocyclic in nature and contains four (4) carbon and two (2) nitrogen atoms. Cytosine, Thymine and Uracil are the pyrimidines.
Which feature separates humans from other primates? smaller brain size bipedalism use of tools complex social skills
Answer:
Complex social skills
Explanation:
Answer:
Complex social skills.
Explanation:
Humans actually have larger brains than other primates, so smaller brain size is incorrect.
Other primates, such as chimpanzees, orangutans, and gorillas, all have the ability to use tools, so that is incorrect.
Some primates, such as chimps and baboons, do stand on their hind legs at times, so bipedalism does not separate humans from other primates.
So, complex social skills separate humans from primates.
Hope this helps!
Bryozoans have several different forms. The branching form is often mistaken for a type of coral. Which is true and can be used to differentiate bryozoans from corals?
Answer:
Bryozoans belong to phylum bryozoa
while corals belong to phylum cnidaria.
Bryozoans are more advanced than corals.
bryozoans have an anus while corals do not have an anus
bryozoans tentacles don’t sting like corals.
Which of the following statements best describes communication style versatility?
The early bird gets the worm.
You can t judge a book by its cover.
I cannot control you, but I can control myself
alf a loa better than none
Answer:
I cannot control you but I can control myself.
Explanation:
Communication style versality is the ability to identify and understand way or taste of communication and adapt to it in order to make people open and receptive to it there by creating intimate relationships with people.
The features of communication style versality is I cannot control you but I can control myself in the sense that I will have to understand different styles and communication preference, then adapt to it by controlling myself, in me controlling myself people will tend to be open and receptive to it and intimate relationships will be built. I can't control other people but I will have to control or work on myself.
Which of the following are roles carbohydrates play in biological systems? Group of answer choices the basis of most of the organic matter on our planet (cellulose, chitin, etc.)
Answer: Here are the completed options
fuels
components of DNA and RNA
signalling
forming barriers between organelles
digesting enzymes
breaking up lipids for digestion
providing structure
The correct options are
most of the organic matter on our planet (cellulose, chitin, etc.)
Carbohydrates act as Body fuels
providing structure
Explanation:
Carbohydrates are biological molecules and are constituents of starches, sugars, glucose e.t.c and are made up of carbon, hydrogen and oxygen which are the major constituents elements of the most organic matter on the planet.
Carbohydrates is a body fuel that act as the major energy source in the body. It gives and provide energy in the body needed for biological activities.
In plants, carbohydrates make up part of the cellulose, giving plants strength and structure. carbohydrates is to form a structure called the glycocalyx.
Which of the following does NOT contribute to bacteria's large diversity Small size, Ability to reproduce quickly, Diverse habitats, None of the above
About how much energy is transferred from a primary consumer to a secondary consumer?
90% of the original energy from the Sun
10% of the original energy from the Sun
10% of the primary consumer's energy
O 1% of the primary consumer's energy
wi
Answer:
90 percent of the original energy from the sun
Answer:
10% of the primary consumer's energy
Explanation:
When observing muscle tissue under the microscope, what distinguishing feature can be found in cardiac muscle, but NOT skeletal muscle?
Answer:
Cardiac muscle is only found in heart and skeletal muscle is found attached to bones.
When observing muscle tissue under microscope, different features found in cardiac muscle, but not in skeletal muscle are as follows:
Skeletal muscles has long multinucleate fibers while cardiac muscles are mononucleate, with only one nucleus per fiber.The ends of cardiac muscle fibers have intercalated discs that are darker regions and they are absent in skeletal muscles.help asap giving branlist and 50 points!!!!!!!!!
Answer:
[tex]\boxed{Option \ 2}[/tex]
Explanation:
=> In the first graph, we come to know that winters are colder and summers are hotter.
=> In the second graph, winters have more precipitation than summer.
=> On the whole, Winters have lower temperature and more precipitation than summers. ← [Option 2]
=> Summers have high temperatures and less precipitation.
Answer:
[tex]\boxed{\sf Option \ 2}[/tex]
Explanation:
We can see in the first graph that the winter months have a lower temperature compared to the summer months. The summer months have higher temperatures.
In the second graph, the winter months have much higher average precipitation compared to the summer months. The summer months have lower average precipitation.
Winters have lower temperatures and more precipitation than summers.
During osmosis Group of answer choices pure solvent and a solution both diffuse at the same time through a membrane.
During osmosis A) pure solvent diffuses through a membrane but solutes do not. B) pure solutes diffuse through a membrane but solvent does not. C) pure solvent and a solution both diffuse at the same time through a membrane. D) gases diffuse through a membrane into a solution and build up pressure.
Answer:
Explanation:A.
The net movements of solvent from the region of higher water potential (solvent) to a region of lower water potential(solute) through a semipermeable membrane is called osmosis. It is a peocess where the solute dissolved in the solvent and the resulting solution pass the selective permeable membrane,A selective permeable is the type which allows water,gases, and non polar molecules to pass through, but restrict polar and other large molecules through its walls.
Generally during osmosis,the water molecules and solute molecules interacts.These interaction ,due to dipole dipole effects of the water molecules, reduced the pressure of water on the solute in solution .Consequently, the water molecule of the pure water (the solvent )exerts more pressure on the weaker solution i,e higher water potential
Hence,this pressure forces water molecules across the semi permeable membrane,from higher water potential to lower water potential.It is the major biological process of plants and animals.
Which of the following processes requires energy from the cell?
A.
Osmosis
B.
Active transport
C.
Diffusion
D.
Passive transport
The following processes requires energy from the cell - B. active transport
Active transport is used by cells to get required molecules such as glucose and amino acids. It requires energy in form of adenosine triphosphate (ATP) is known as primary active transport.
Active Transport works against the concentration gradient and therefore needs energy.Passive transport such as Diffusion and Osmosis, from areas of high concentration to areas of low concentration without the need for energyThus, the following processes requires energy from the cell - B. active transport.
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How is an actual greenhouse similar to the natural greenhouse effect?
Explanation:
That's because the glass walls of the greenhouse trap the Sun's heat. The greenhouse effect works much the same way on Earth. Gases in the atmosphere, such as carbon dioxide, trap heat just like the glass roof of a greenhouse.
Which of these is an example of a haploid cell?
Answer:
Gametes
Explanation:
Gametes are an example of a haploid cell and are produced as a result of meiosis.
DNA and RNA are structurally similar in some ways, but different in others. Identify whether each of the following statements applies to DNA, RNA, both or neither.
1. It can contain the pyrimidine cytosine.
2. It can contain the pyrimidine uracil.
3. This contains the sugar 2'-deoxyribose.
4. In terms of base composition, the %A = %C.
5. This contains the sugar ribose.
6. The bases are attached to sugars in a beta-N-glycosidic linkage.
7. It contains equal amounts of guanine and cytosine.
8. Sugars are connected with a 3'-5' phosphodiether link.
Answer:
Explanation:
1. It can contain the pyrimidine cytosine - Both
2. It can contain the pyrimidine uracil - RNA
3. This contains the sugar 2'-deoxyribose - DNA
4. In terms of base composition, the %A = %C - Neither: %A = %T
5. This contains the sugar ribose - RNA
6. The bases are attached to sugars in a beta-N-glycosidic linkage - Both
7. It contains equal amounts of guanine and cytosine - Both
8. Sugars are connected with a 3'-5' phosphodiether link - Neither: they are connected by a 3'-5' phosphodiester link
The possibility of magnifying contaminating sequences present in a nucleic acid pool is a drawback associated with PCRs high level of sensitivity (i.e., potential for exponential amplification).
A. True
B. False
Answer:
True
Explanation:
The Polymerase Chain reaction (PCR) is a technique widely used in molecular biology to identify specific DNA fragments generally in a size range of 100 to 1000 base pairs (bp). PCR sensitivity refers to the potential of the PCR technique to specifically amplify the desired sequence in the sample. PCR is a highly sensitive (and also specific) method with values around 100% if the experimental conditions are proper. However, to reach these values, it is imperative to work in optimal conditions by eliminating contaminant factors in the sample which may alter PCR amplification.
Predict what will happen as more time passes? (To Earth)
What does environmental quality refer to? Environmental quality refers to the quality of the total environment, including both the natural and the environment.
Answer:
True,
An animal requires, Food, Water, Shelter as basics of life - but I add a third, for social animals; a Mate, Young, or Flock/Herd/Group
I'm confused on labelling the stages of mitosis in these onion cells. I know what these stages look like illustrated in the textbook, but am confused when looking at actual slides of cells. Can anyone help? Photo is attached.
Answer:
Hello. I numbered your cells to make it easier to name them. The image with the numbers is attached.
cell 1: Interphase.
Cell 2: Telophase.
Cell 3: Metaphase.
Cell 4: Prophase
Cell 5: Interphase.
Cell 6: Anaphase.
Explanation:
In the interphase, it is possible to notice that the cell increased its volume, due to the increase in the size of the organelles and the increase in the number of the organelles, which indicates the beginning of the cell cycle.
Prophase is really the beginning of the cell cycle. At that moment, you can see that the nuclear membrane has been disorganized and we can see a 'tangle' of the cell interior that is very full and disorganized. This is mainly because the material present in the nucleol spreads through the cell.
In the metaphase, the chromosomes are condensed and start to connect to each other forming the spindle fibers, which are located right in the middle of the cell, forming the equatorial plate.
In anaphase there is a rupture of the centromeres and sister chromatids. Each part of these elements migrates to one of the poles of the cell. This is mainly due to the shortening of the spindle fibers.
Telophase is the final phase of the cell cycle, at that moment, the spindle fibers disappear, the chromosomes are condensed and the nuclear membrane is reconstructed. However, the cell has not yet separated and it is possible to see two nuclei in a single cell, each nucleus is at a pole, indicating that the division will occur.
Which of the following vessels do not have the ability to constrict and dilate? Arterioles Arteries Capillaries Veins
Answer:
capillaries
Explanation:
they don't need to constrict or dilate as the blood pressure is already low in capillaries.
2 Diseases of a cassava
The overall outcome of the activities carried out under the CaCESA initiative
will improve cassava production and productivity. The effectiveness of
program is based on five axes:
- provision of healthy cassava cuttings to vulnerable families;
- the organization of extensive awareness and communication campaigns;
- national and regional coordination of actors in the production chain and
cassava post-production;
- the improvement of cultivation, processing and conservation practices
cassava;
- control and management of the spread of diseases, whether they are transmitted
insects and / or infected cassava cuttings.
To achieve these results, it will be necessary to build capacity at different
levels. The objectives will be achieved through the implementation of appropriate activities
Explanation:
Answer:
Explanation:
Oidium manihotis
Root Rot Pathogens
Which feature separates humans from other primates? smaller brain size bipedalism use of tools complex social skills
Answer:
Bipedalism.
Explanation:
Bipedalism is a human's ability in which they can use their two hind legs to run or walk without the help of their front limbs, unlike other primates.
Answer:
Bipedalism
Explanation:
i took the test and failed
A mutation causes a sequence of DNA that has the nucleotides TTG to be changed to TCG. The resulting protein has a different sequence of amino acids. Which type of mutation is this?
Answer:
subtitution mutation
Explanation:
The T in the middle is subtituted with C.
Hope it helps.
Answer:
The answer is A, missense.
Explanation:
forks over knives movie
1. Do you feel that eliminating all "animal-based foods" is the solution to reverse and prevent the chronic diseases that afflict most Americans and other industrialized nations?
2. Do you feel that government agencies, like the USDA, promote eating an animal-based diet? Why or why not?
3. Given this "sudden epidemic" of obesity in America within the last 30 years, do you feel the main cause of our "growing nation" is due to an animal-based diet, increased consumption of processed foods and refined sugars, or a decline in physical activity?
4. Do you feel the success of the patients was due to a) the increased amount of fruits/vegetables and plants or b) the elimination of meats or c) a combination of both? Why? Use information we've learned in class to justify your answer.
5. What part of the movie really stood out to you (good or bad) and why? Be very specific. This is where you show me you paid attention to the entire documentary.
Answer:
1. Yes
2. No
3. Yes
Explanation:
Yes, the elimination of the animal based foods decreases and reduce chronic diseases in many developed countries such as US and England etc. but meat is also very necessary for animal diet due to the presence of high protein content.
No, USDA does not promote the intake of an animal-based diet. this agency promote the intake of nutritious food in a limited amount so it does not cause any disease. They recommend the eating of Grains, Fruits, Protein, Foods, Vegetables and Dairy products in a limited amount.
Yes, the main cause of obesity in Americans is due to two reasons, first cause is the intake of meat in large amount and second cause is the decline in physical activity.
The success of the patients was due to combined effect of increased amount of fruits/vegetables and plants and the elimination of meats. By using these two element the patient will quickly recovered.
Part D
Cervical pregnancies are extremely rare. Women undergoing cervical pregnancies often experience unusual vaginal bleeding. In extreme cases, they may require a hysterectomy (removal of the uterus). Why do you think the symptoms and risk occurs with this type of ectopic pregnancy?
Answer
The places where the fertilized egg got implanted are not appropriate
for the fetus´ development. These places lack space and needed tissues.
Explanation:
Ectopic pregnancies occur most often in the Fallopian tubes, which are the structures that transport the eggs from the ovaries to the uterus. But some other times, ectopic pregnancies might also occur in ovaries, abdominal cavity, or in the cervix.
These pregnancies are not viable, this means that the fertilized egg can not survive. However, the firsts stages of its development seem to be normal and involve an increase in tissues surrounding the egg.
As the places where the egg got implanted are not prepared for its development, they might be harmed. These areas do not have enough space, nor nutritional tissues needed by the embryo. And as the fetus grows, it creates a constant pressure in the organ, that can make it burst. This provokes important bleeding that might cause the patient´s death if they are not properly assisted.
At first, the woman might feel the normal symptoms of pregnancy, like the lack of the period during the firsts months or breast sensitivity. But as the egg grows in the inappropriate place, there appear some new signs and symptoms, such as a light bleeding or pelvic pain. If the organ bursts, the bleeding might be so intense that the woman might be in danger.
Answer:
Bleeding would occur because the baby is growing near the vaginal canal, which leads to the outside of the body. The cervix is the bottom portion of the uterus, so if the uterus is damaged, the entire uterus may need to be removed.
Explanation:
answer from Plato
for edmentum
Mike is studying the phylogenetic tree for big cats. A big cat phylogenetic tree is shown. A bracket goes to clouded leopard and to another bracket. That bracket goes to 2 additional brackets. One bracket goes to tiger and snow leopard. The other bracket goes to janguar and another bracket. The other bracket has lion and leopard. He made several statements about the tree. Which statement is not true? The leopard is more closely related to the jaguar than to the snow leopard. The leopard is more closely related to the tiger than to the clouded leopard. The leopard is more closely related to the snow leopard than to the clouded leopard. The leopard is more closely related to the tiger than to the snow leopard.
Answer:
The leopard is more closely related to the snow leopard than to the clouded leopard.
Explanation:
Hope it helps.
Answer:
C
Explanation:
The Answer is C my fellow Brainly users