The canal connecting the third and fourth ventricles and running through the midbrain is the interventricular foramen

a. True
b. False

Answer:

a. True

Explanation:

Cellular Respiration is the process by which cells of all living organisms obtain the required energy for their metabolic activities. Respiration is a catabolic process whereby glucose is broken down to release Its high energy and used to synthesize a usable form of energy by the cell (ATP).

Cellular respiration occurs in living cells with oxygen (aerobic) or without oxygen (anaerobic). In aerobic respiration, three processes viz: Glycolysis, Kreb's cycle and Oxidative phosphorylation are involved. Oxygen is the final electron acceptor in the Electron transport chain of the Oxidative phosphorylation.

On the other hand, anaerobic respiration is employed by certain bacteria in the absence of oxygen. In anaerobic respiration, another final electron acceptor is used other than oxygen.

Both processes yield Adenosine triphosphate (ATP).

Answer: A- Sporangium

              B- Rhizoids

Explanation:

Answer:

See the answer below

Explanation:

Genotype of a true-breeding white, disk-shaped fruit = WWDD

Genotype of a true-breeding yellow, sphere-shaped fruit = wwdd

Crossing the two:

   WWDD    x    wwdd

             WwDd

All the offspring (100%) will have the genotype WwDd with white, disk-shaped phenotype.

Assuming the cross is advanced to F2:

  WwDd    x    WwDd

W_D_    9   White, disk-shaped (9/16)

W_dd     3   White, sphere-shaped (3/16)

wwD_     3   Yellow, disk-shaped (3/16)

wwdd      1    Yellow, sphere-shaped (1/16)

(See the attached image for the Punnet's square)

Answer:

c. increased number of meals eaten outside the home

Explanation:

Environment is the surrounding of living organism, where he gets to survive by meeting its needs.

Environmental factors are factors in the environment that are associated to growth and development example is temperature.

The environment an individual stays have a great influence on the physical expression and character of the individual.

For a fat person the environment had played out his role which should be controlled to achieve a significant weight loss. Increasing number of meals eaten outside the house is one major factor that would not allow such individual to loose weight. Intake of food should be greatly controlled and watched to achieve weight loss.

Answer: the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct

Explanation:

Answer:

it is when a green plant or another plant use sunlight to synthesize food from water and carbon dioxide

:

b. It will produce a limited variety of gametes with certain alleles being always passed on together.

Crossing over is a process that happens during meiosis, where the 23 chromosomes from the mother mixes with the 23 from the dad, creating an individual with an unique combination of genes. The only chromosome that does not do crossing over is the chromosome Y, because it is too different from his counterpart, the chromosome X.

To join two nucleotide in a polynucleotide, phosphodiester bond is used. The correct option is B.

A bond formed by a sugar group and a phosphate group; these bonds make up the sugar-phosphate-sugar backbone of DNA and RNA.

A diester bond connects two different nucleotides to form the nucleotide polymers DNA and RNA.

Thus, the correct option is B.

For more details regarding phosphodiester bonds, visit:

https://brainly.com/question/23660733

#SPJ5

Answer:

Region C is the posterior (back) section.

Explanation:

The occipital lobe is found at the back of the head.

Hope it helps.

Answer:

C the green highlighted part

Explanation:

Took the test

Answer:

Adaptive or acquired immunity is that we acquire throughout our lives through vaccines (active), breast milk (passive) or injection of specific artificial or natural antibodies to a certain pathogen (passive).

The two great arms of this immunity are the humoral and the cellular.

The humoral refers to the cytokines and immunomodulatory molecules that are responsible for transmitting fundamental messages between defense cells in order to coordinate the destruction of the pathogen between them.

Instead, cellular immunity speaks about cell lineage such as b, t, tcd4 lymphocytes, natural killers, plasmacytes, etc.

It can be said that the humoral factor is the one that coordinates the pathways and the relationships between the cells of the acquired immunity, both are important because the two need each other for adaptive immunity to work.

Explanation:

Examples of the humoral factor: pro and anti inflammatory cytokines, interleukins, complement chain, antibodies, TNF alpha, beta, etc.

Examples of cellular factor: plasmacyst, b lymphocyte, t lymphocyte, NT lymphocyte

Answer:

0.19

Explanation:

3.44-3.25 = 0.19

Is B supposted to be 0.29 or 0.19?

The the range of student 1's results is 0.47. The correct option is C.

An experiment is a test in which a system's component is changed to examine how the result is affected.

In order to determine the exact source of the experimental outcomes, tests should ideally involve manipulating as many additional variables as possible.

The process of scientific testing is determining what we would expect to see if a theory were true and contrasting it with what we actually see.

Through testing and experimentation, the scientific method establishes facts in an unbiased manner.

Making an observation, formulating a hypothesis, making a prediction, carrying out an experiment, and then evaluating the findings are the fundamental steps.

The range of student 1’s result is equal to = 3.64 - 3.17 = = 0.47

Thus, the correct option is C.

For more details regarding experimentation, visit:

https://brainly.com/question/14632229

#SPJ5

Answer:

A: positive

B: negative

Explanation:

Hope it helps.

Answer

A is positve and B is negitive

Explanation:

Answer:

1 - Potential   2 - Kinetic  3 - Potential and Kinetic

Explanation:

Potential energy is the energy that an object has when it has a certain amount of elevation from the ground level and to calculate it, we can multiply the mass of the object with the gravitational acceleration constant.

hKinetic energy is the energy that the object has when it has a speed above zero, when it is moving. We can calculate the kinetic energy by multiplying the mass  of the object with it's speed.

In the first option, the pendulum has a height because it is just about to fall down, but it has no speed. So it only has potential energy.

In the second option, the pendulum is between the two ends so it is at the equilibrium point where it has no elevation but it has speed. So İt only has kinetic energy.

In the third option, the pendulum is still moving to the maximum height, so it has both elevation and speed, giving it both kinetic and potential energy.

I hope this answer helps.

Answer:

Option A

Explanation:

All four types of polysaccharides are homopolymers ie they are made up of repeating units of only one type of monomers.

Starch, glycogen and cellulose are made up of repeating monomeric units of glucose with the number of glucose units and the different linkage types different these molecules. E.g the linkage between glucose units in glycogen is alpha 1-4 linkages and in cellulose, we have glucose in beta 1-4 linkages.

In chitin, a derivative of glucose is present in repeating units, here, we have N-acetyl-D-glucosamine in beta 1-4 linkages.

Answer:

B. The cell is in meiosis II and is ready to complete the second division over.

Explanation:

Hope it helps.

Answer:

c: stem cells mitosis stem.

d: the compromised cells differentiate into chondroblasts.

a: New matrix is produced and secreted.

b: Chondrocytes differ, each in its own gap.

Explanation:

The appositional growth of cartilage occurs in an appositional order, thus generating these cartilage structures to give future bone structures or mature cartilages themselves.

In the cartilage of growth of long bones this process happens.

Chondroblasts are differentiated cells that can form the extracellular matrix, and chondrocytes would be the mature form of these that are submerged in their MEC once they reach the secretion limit.

The constant cartilage of cellular, mineral and organic structures, with organic compounds predominating (almost 80 percent are collagen fibers, proteoglycans and glycoproteins), that is why this tissue has a certain elasticity.

Answer:

The muscle that originates on the sacrum and transverse process of each vertebra and inserts on the spinous process of the third or fourth more superior vertebra is the Longissimus muscle

Explanation:

The Longissimus is a group made of three muscles: longissimus capitis, longissimus cervicis and longissimus thoracis. It has the length of the vertebral column.

It is placed in the back, and as the statement says, it originates on the sacrum and transverse of each vertebra. Each of them originates at the transverse elements and insert in the costal ones.

Answer:

Hello Again!!

Your answer is C. LIMESTONE!

Explanation:

Limestone is formed Calcium Carbonate (CaCO3) and a mixture of othe organic matters like shells, coral and waste...

HOPE THIS HELPS!

itsMATT04

Limestone is an example of an organic sedimentary rock.

These are organic-rich sedimentary rock which contains significant amount of organic carbon.

Hence, here limestone is the only organic sedimentary rock.

To know more about sedimentary rock :

https://brainly.com/question/980701

#SPJ2

Answer:

In autoimmune diseases, such as lupus, multiple sclerosis and rheumatoid arthritis, people produce antibodies that stick to their body's own proteins and attack healthy cells.

Explanation:

Answer:

The genera include...

Mycobacterium

Actinomyces.

Explanation:

The genera Actinomyces and mycobacterium show significant observation of gram positive bacteria because they test positive and give a violet or purple color under microscope when the undergo gram staining which is which uses crystal violet due. They are able to retain the violet color due to their posses of thick peptidoglylcan cell wall.

Actinomyces spp. Of the general actinomyces play an important role in soil ecology, and some species are human pathogens that cause diseases.

Mycobacterium genera example is bacilli which is covered with a mycolic acid coat. This waxy coat protects the bacteria from antibiotics, prevents them from destruction and hinder the penetration by Gram stain reagents. They cause different infectious diseases in humans.

He demonstrated that SCD and sickle cell trait were due to the presence of abnormal 8-globin polypeptides in red blood cells. He demonstrated that the electrophhoretic mobility of B-globin from patients with SCD was different from that of healthy individuals. He demonstrated that both parents of multiple patients with SCD had low levels of sickled red blood cells. He hypothesized that SCD was a recessive trait and that the parents of patients with SCD would be heterozygous carriers. He demonstrated that the difference between B-globin polypeptides in individuals who were healthy and those with SCD is an amino acid substitution. He performed a peptide fingerprint analysis on B-globin from individuals with 84 84 and 89 88, which identified the segment of B-globin that was changed by the BS mutation. James Neel Linus Pauling Vernon Ingram

hope it helps..

Answer:Dispersal

Explanation: This refers to offspring moving away from their parents. This prevents the offspring from competing with the parents for resources such as light or water. For example, dandelion seeds have “parachutes.” They allow the wind to carry the seeds far from the parents

Answer: A. Since 2000, there has been an increase in the number of people living with HIV, but a decrease in the number of people newly infected with HIV.

Explanation:

The statement "Since 2000, there has been an increase in the number of people living with HIV, but a decrease in the number of people newly infected with HIV" best supported by the data in the graph. Hence, option A is correct.

The virus known as HIV (human immunodeficiency virus) targets the immune system of the body. HIV can cause AIDS (acquired immunodeficiency syndrome) if it is not treated. Right now, there is no efficient treatment.

Nevertheless, since 1996, there have been fewer new infections. For this reason, we can assume that if we look at the year 2000, we will observe that there was a rise in the number of HIV-positive persons but a decline in the number of HIV-positive people.

Therefore, since 2000, there has been an increase in the number of people living with HIV, but a decrease in the number of people newly infected with HIV.

Learn more about HIV, here:

https://brainly.com/question/29767704

#SPJ7

The given question is incomplete, so the most probable image of the  question is attached below.

Answer:

This question is incomplete. Group of answer choices are:

A. G1

B. G2

C. Prophase

D. Metaphase

E. Anaphase

The correct answer is A.

Explanation:

The G1 phase (Gap 1 phase) is the period of the cell cycle from the time a cell is born until the S phase begins. When the G1 phase begins (just after the division of the stem cell) the size of the newly originated cell is half of its normal size, and the cell must grow to reach it. For this, in this period, RNA and proteins are actively synthesized. During this period, the cell has only the amount of DNA that it has received from its progenitor and each chromosome is made up of a single chromatid, since DNA replication has not yet occurred.

1. Dorsal column-medial lemniscal pathways - It would prevent the body from receiving stimuli related to pain and temperature: Corresponds to sensory pathways related to an organism's proprioceptive awareness. It is through these pathways that sensory stimuli and electrical impulses are transmitted from the body to the brain resulting in the display of quick and efficient responses. If cut, the individual would not be successful in receiving stimuli related to pain and temperature.

2. Anterolateral pathways - It would also prevent the sensation of pain and temperature, in addition to hindering the perception of touch and pressure: Located in the anterior part of the lateral column, this pathway is responsible for the transmission of nociceptive information, generally related to pain awareness. and temperature. Its cut would not only make it difficult to transmit these factors, but it would also make it difficult to transmit extroceptive information to the cortex.

3. Spinocerebellar pathways - would hinder information about the position of body members and joints: This pathway is located between the spinal cord and the ipsilaterally in the cerebellum. It consists of thousands of axonal fibers whose main function is to transmit information about the location of the body members, arms and legs, in addition to their joints. Its cut would make it difficult, or even prevent this information from being captured by the brain.

4. Pyramidal pathways - It would prevent the union of the cerebral cortex to the motor neurons of the spinal cord: It is formed by several axons that extend between the cerebral cortex and the spinal cord passing motor information that would be interrupted if the path was cut.

The Functional problems to be experienced when each fiber tracts is cut ;

1) Inability of to feel pain and temperature stimulus  

2) Inability to perceive touch and pressure by the person

3) Inability to determine position of body organs like hands and legs

4) Prevention of the unionization of the cerebral cortex and the motor neurons

Every Fiber tract found in the human body system play a vital role in the overall functioning of the human therefore when any of the fiber tract is mutilated ( cut ) it presents some functional problems to the body.

When Dorsal column-medial lemniscal pathways is cut It would prevent the human body from receiving pain and temperature stimulus.

When Anterolateral pathways is cut the functional problem experienced is Inability to perceive touch and pressure by the person

When Spinocerebellar tracts are cut the individual will experience the Inability to determine position of body organs like hands and legs

When Pyramidal tracts are cut the functional problem experienced is the  Prevention of the unionization of the cerebral cortex and the motor neurons  located in the spinal cords

Hence we can conclude that the answers to your question are as mentioned above.

Learn more : https://brainly.com/question/13962297

Answer:

One very true and essential information to know about varicose veins is that there is often re-occurrence following after surgery.

Explanation:

Varicose veins are a group of large, benign, twisted, and superficial veins on the skin surface. They may come with no side effect in some sufferer (asides from the physical appearance), and can cause chronic pain and discomfort in others, usually pointing to an underlying circulatory problem. Varicose veins are caused by damaged or weak valves in the veins, and complications like bleeding might occur. Some people with the risk of developing this disease are obese people, people with genetic tendencies, and usually pregnant women. Treatment methods includes compression stocking, a lifestyle change, and some medical procedures like surgery. After surgery, there is usually re-occurrence.

Answer:

1. During DNA replication, an open section of DNA, in which a DNA polymerase can replicate DNA, is called a replication fork.

2. After replication is complete, the new DNAs, called daughter DNA , are identical to each other.

3. The enzyme that can replicate DNA is called DNA polymerase.

4. Okazaki fragments are the short sections of DNA that are synthesized on the lagging strand of the replicating DNA.

5. The new DNA strand that grows continuously in the 5' to 3' direction is called the leading strand.

Explanation:

Hope it helps.

DNA replication is the process by which a cell makes an exact copy of its DNA.

It is a fundamental process in all living organisms that allows for the accurate transmission of genetic information from one generation to the next. During DNA replication, the double-stranded DNA molecule unwinds and separates into two individual strands.

Each of the original strands serves as a template for the synthesis of new DNA occurs. This replication process follows a semi-conservative mechanism.

The correct options are:

Learn more about DNA replication, here:

https://brainly.com/question/30111562

#SPJ6

Answer:

Vernix Caseosa

Explanation:

it's a waxy white substance that covers the babies skin.

Answer:

The skin is covered by VERNIX CASEOSA.

Explanation:

A waxy cheese like white substance.

This is produced by dedicated cells and have some protective roles during fetal development.

Answer:

Cattle and other ruminants are significant producers of the greenhouse gas methane—contributing 37 percent of the methane emissions resulting from human activity. A single cow on average produces between 70 and 120 kg of methane per year and, worldwide, there are about 1.5 billion cattle.

While carbon dioxide is typically painted as the bad boy of greenhouse gases, methane is roughly 30 times more potent as a heat-trapping gas. ... As temperatures rise, the relative increase of methane emissions will outpace that of carbon dioxide from these sources, the researchers report.

The cow's rumen is like a large fermentation vat. More than 200 different bacteria and 20 types of protozoa help the cow to utilize fibrous feedstuffs and non-protein nitrogen sources. ... Bacteria adhere to the feed and gradually digest the fermentable material.

“You can probably reduce methane by about 20-25% by altering diet,” he says. One study by researchers at the University of California, Davis, estimated it might be possible to reduce global methane emissions from cows by 15% by changing their diet.

Explanation:

Hope it helps.

Answer:

This group contains producers and consumers.

Explanation:

You can think of viruses as consumers that eat healthy cells in your body. Bacteria are producers, you can think of it like a lake with algee that grows and gets produced.

Answer:

Tap root

Explanation:

A large majority of dicotyledonous plants are capable of producing tap roots, which is part of a primary rot system that grows in the vertical direction - downwards. Sometimes it serves the function of storing food, as in the case of dandelions.

One main role that the trichomes (fine hair-like outgrowth) play is to defend the plant against certain insects.