Answer:
D.
hypothalamus
Explanation:
edge
All the structures above indicated are included in the forebrain EXCEPT the CEREBELLUM (Option A).
The forebrain (also known as the prosencephalon) is the largest region of the brain.
The forebrain is composed of the cerebrum (telencephalon), thalamus, hypothalamus, pineal gland and limbic system.
The cerebrum is recognized to be the biggest portion of the brain.
On the other hand, the cerebellum is a brain structure located between the brainstem and the cerebrum.
The functions of the cerebellum include motor abilities, sensory perception and body posture/balance.
In conclusion, all the structures above indicated are included in the forebrain EXCEPT the CEREBELLUM (Option A).
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Describe the path of a signal from a neuron's dendrite to a second neuron's dendrite.
Answer:
Dendrite are short hair like structures originating the periphery of the cytoplasm. Dendrites are either in close contact with other neurons or the stimulus receptor cells.
I would attach a diagram with this note I hope it helps.
Researchers propose a model to explain variation in phytoplankton cell sizes in a marine environment. They base their model on the idea that smaller cells absorb nutrients more efficiently. The researchers predict that the mean diameter of phytoplankton cells will change by 50 micrometers for every 5-kilometer increase in distance from the shore because of a gradual decrease in nutrient availability. To test their model, the researchers determine that the phytoplankton cells found closest to shore have a mean diameter of 900 micrometers. Based on the model, what will be the mean diameter of the phytoplankton cells that are found 25 kilometers from shore?
The mean diameter of phytoplankton cell is 650 micrometers at a distance of 25 kilometers from the sea shore.
The mean diameter of phytoplankton cell is 650 micrometers because at every 5 kilometers, decrease occur in the diameter of phytoplankton cell about 50 micrometers and we know that the the diameter of phytoplankton cell is 900 micrometers so for 25 kilometers there is 250 micrometers decrease occur in the diameter of phytoplankton cell.
So this 250 micrometers are substracted from 900 micrometers we get 650 micrometers. So we can say that the mean diameter of phytoplankton cell is 650 micrometers at 25 kilometers distance from the sea shore.
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atmosphere is a mixture of two things
Answer: yes
Explanation:
It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.
please explain the interactions and interdependence of organisms within a biosphere. please provide me with a different example on these interactions and interdependence in the picture below. include nonliving organisms an illustrate why they are essential organisms
Water fleas (Cladocera) are small freshwater crustaceans. They are filter feeders can are about 3-5mm long. The outer carapace of a water flea is transparent so the internal organs can be observed. Caffeine raises the heart rate of humans. Hanna predicts caffeine will have the same effect on other organisms. She uses the water flea as her test subject in an experiment. Hanna introduces varying amounts of caffeine to water flea populations. Using a microscope, she measures the heart rate in beats per second of sample water fleas. She records the data in a table. As the concentration of caffeine increases, Hanna observes the water flea heart rate also increases. What is the hypothesis in Hanna’s experiment? A) Caffeine raises the heart rate of humans. B) Water fleas prefer caffeine over plain water. C) Caffeine increase the heart rate of the water flea. Eliminate D) The effects of caffeine are the same on all organisms.
Answer:
The Answer is C.
Explanation:
sorry i took awhile
The hypothesis is the part of the scientific method that is the supposition based on some observed data. In Hanna's experiment, "caffeine increase the heart rate of the water flea" is the hypothesis. Thus, option C is correct.
What is a hypothesis?The hypothesis has been defined as the conjecture that is proposed in a scientific method and is based on the speculations from the observed facts and information. It is proposed to perform the experiment and reach the conclusion of the reliability.
They are testable and are performed through the experimental design that includes the experimental and control group so that the collected evidence can be analyzed and proved to be true. In Hanna's experiment, the effect of caffeine on the heart rate of fleas is a hypothesis.
It is a hypothesis as it is based on the observed fact that caffeine increases the human heart rate. The caffeine acted as the independent variable and the heartbeat was the dependent variable that showed that water fleas have increased heartbeat if given caffeine.
Therefore, option C. caffeine increases heartbeat is the hypothesis.
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Ruthie has a pet goldfish. After several months the goldfish quits growing. Ruthie's Mom told her the goldfish might have stopped growing because the tank is too small. Ruthie measures the size of her goldfish in its current tank and then puts the goldfish in a larger tank. After 2 months the goldfish is now 1 cm longer.
A. Independent Variable=
B. Dependent Variable=
C. Control=
Answer:
independent: fish tanks
dependent: goldfish
control can he anything unchanged: the water, fish food, temperature...
The variables in the study are the independent variable is fish tank, dependent variable is goldfish, and control is the water, fish food, and temperature.
What are experimental variables and control?
The experimental variables can usually one or several of the sample attribute categories which are used in study. It describes all the factors that differ between the test and the control samples in the study, which we are investigating. Example of experimental variable is disease.
The independent variable in an experimental study is what the scientists can change in the experiment. The dependent variable is what the scientist measures in the experiment, or the outcome of the study. The controlled variables are all the features which are kept the same throughout the experimental study.
The independent variable in the experimental study is the fish tanks, the dependent variable is the goldfish, and the control can be anything which remains same throughout the experiment is the water, fish food, temperature.
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name an organ found in a human.list three tissue which make up this organ
Answer: Your lungs
Explanation: there is 40 types of cells like the cells of the epithelium, interstitial connective tissue, blood vessels, hematopoietic and lymphoid tissue, and the pleura
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the disease erythroblastosis fetalis (also called hemolytic disease of the newborn) develops in a fetus or a newborn infant with Rh-positive blood and an Rh-negative mother. Symptoms results when maternal anti-Rh antibodies cross the placenta and interact with the fetus' erythrocytes. Why are the children of Rh-positive mothers not ay risk for this disease
Answer:
Explanation:
Hemolytic Disease of the newborn (HDN, Erythroblastosis Fetalis) is a blood disorder occurring at or around birth, where the blood groups of the mother and baby are not compatible. It occurs when the antibodies from a Rhesus negative (Rh-negative) mother, who has been sensitized from previous pregnancies or other means (transfusion etc), gives birth to an Rh-positive baby, and the blood of the mother and the baby eventually mixes. This causes the anti-Rhesus antibodies in the mother's blood to attack the Rhesus antigen (Also Called Anti-D antigen) on the baby's red blood cells, causing hemolysis that leads to several unpleasant symptoms.
Children of Rh-positive mothers are not at risk of developing HDN, because the mother does not produce anti-Rh antibodies since she is positive, hence there will be no antibodies to cross the placenta and react with the baby's rhesus antigens for Rh-positive babies.
What types of cells contain a cell
wall?
Answer:
Plant cell
Explanation:
Cell wall only in plant cells
SpongeBob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a special Flower Power fertilizer to see if it will help plants produce more flowers. He plants two plants of the same size in separate containers with the same amount of potting soil. The places one plant in a sunny window and waters it every day giving it fertilizer each day. He places the other plant on a shelf in a closet and waters it every day but does not give it any fertilizer. The plant in the sunny window ended up producing many more flowers than did the plant in the closet. Should SpongeBob conclude that giving Flower Power fertilizer to plants will cause the plant to produce more flowers
Answer:
No
Explanation:
It would be wrong for SpongeBob to conclude that giving flower power fertilizer helps the plant to produce more flowers based on the experimental design.
There are fundamental flaws in the experimental design that could make the conclusion to be wrong:
The two plants were not subjected to the same conditionsThe sample size is too smallIn order to investigate if the flower power fertilizer has the capacity to help the plant to produce more flowers, the two plants used should have been subjected to the same conditions barring only the fertilization application. Whatever difference that is observed in the number of flowers produced can then be attributed to the fertilizer.
Also, the number of plants for each group (with and without fertilizer) is too small to arrive at a reliable conclusion. In scientific investigations, replicating measurements increases the statistical power of the resulting data and raises the reliability of the conclusion.
Under which circumstance does Mendel’s principle of independent assortment hold? a. only when there is crossing over b. only when traits are tightly linked (close together) on the same chromosome c. only when traits are on different chromosomes d. only when the traits are not influenced by selection
Answer:
c
Explanation:
Mendel's principle of independent assortment holds only when traits are on different chromosomes.
The independent assortment principle states that genes assort independently of one another. In order words, traits are independently inherited by offspring from parents. For example, the trait for eye color is independently inherited from skin color, height is independently inherited from feet size, and etc.
This principle only holds true when genes are located far away from one another on the same chromosome or when they are on different chromosomes entirely. Once genes are close to one another on the same chromosome, they become linked together and no longer independently inherited.
The correct option is c.
Is this statement true or false? The period before we have written records is called prehistory. true o false
Answer:true
Explanation:
Describe one reason why the solvent property of water is so important for living organisms (nature).
Answer:
Water is known as a universal solvent as it allows for lots of salts and gases to dissolve in it. Water is found between living tissues. This helps for vitamins, minerals and gases to dissolve in the cell. Because of this, the cell lives as it gets glucose and oxygen needed for respiration(to produce energy) .
Also water helps in transport of substances around the body.
The solvent property of water is very important for living organism due to its high dissolving power.
The solvent property of water is very important for living organisms because water dissolve large number of solutes in it and helps in the transportation from one place to another. Water is a polar substance which dissolves polar solutes in itself.
Water dissolve nutrients in itself and transport to the regions where it needed the most so we can say that the solvent property of water helps in the transportation of nutrients and other substance in the body of organisms.
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How do your interactions
with nonliving systems affect your
environment?
Explanation:
Interactions between different organisms are numerous and are usually described according to their positive (beneficial), negative or neutral effect on others.
The interactions between living things and their non living environment makes up a total ecosystem; understanding any one part of it requires knowledge of how that part interacts with the others. Ecosystems do not ‘collapse’ but do change in function, structure and composition over time due to natural or human disturbance (examples include the impact of drought, flooding, mowing and herbicides).
How are soil and plant taxonomy the same
Explain the need for a reference point when describing the direction of motion
Answer:
It is important as it tells if the object is stationary or in motion
Explanation:
Which of the following is a nucleotide found in DNA?
Answer: The four nitrogenous bases in DNA are guanine, adenine, cytosine and thymine; in RNA, uracil is used in place of thymine.
Explanation:
Hopefully this helps you.
Community definition
Answer: Multiple populations in a given area
application of genetics in to legal applications
Answer:
i cant understand your question define briefly
Explanation:
Genetics are used in legal, criminal cases in order to either prove the guilt or innocence of a particular person. DNA is left at crime scenes that can then be found and tested against people. Genetics might also be used in order to help prove an insanity plea (for example, if the person has a family history of disorders. That's something that can be found with DNA).
What did Adam say when he saw Eve
The man said, “This is now bone of my bones, and flesh of my flesh; she shall be called woman, because she was taken out of man.”
why is carbon the most versatile element in living organisms?
Answer:
Because it has four electrons in its second orbital, which can accommodate eight, carbon can combine in many different ways, and it can form very large molecules. Carbon bonds are strong and can stay together in water. Carbon is such a versatile element that almost 10 million different carbon compounds exist.
what are The three major plant organs
What is the molecular weight of 1 mole of NaCl where the atomic mass of Na = 23 and Cl = 35.4?
Breaks down dead matter that can then be recycled through the ecosystem.
Answer: Decomposers
Explanation:
Decomposers are organisms that consume dead organisms and other organic waste. They recycle materials from the dead organisms and waste back into the ecosystem. ... The remains of dead plants are consumed by organisms called detritivores.
The outer structure of the neuron is made of a
a semipermeable membrane
Give one similarity and one difference between the cell theory and the theory of
spontaneous generation.
Answer:
The fact that only cells are able to produce more cells is part of cell theory. The idea that organisms can develop independently of cells is called spontaneous generation, and it isn't supported by cell theory. Spontaneous generation suggests that living organisms develop from non-living matter.
According to the lecture, what does all life depend on? What happens to bonds during chemical reactions? What is bond energy? How is energy related to bonds breaking and bonds forming? How will you know if/when a reaction is in equilibrium? What is activation energy and how is it related to a chemical reaction? What is the difference between exothermic and endothermic?
bonds inflicarate,rlr4lr4
1. Which of the following things is common to all living organisms? it for a test so I need it quick!
Answer:
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Lysosomes contain enzymes that are necessary for what?
Answer:
They break down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.
Explanation:
Answer:
breaking down of food
Explanation:
Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.
How are you doing? Thank you for helping others. :)
Answer:
Explanation:
Fine, I believe. You're very much welcome...