Fixed cells are refers to static cells that remain unchanged over time while living cells refers to dynamic cells that move and change over time.
What are Fixed cells?Fixed cells are cells that are preserved in a condition that is as close to “life-like” as possible.
These cells usually die during this process, but their shape and contents are maintained for imaging purposes.
Further preparation for fixed cells are far easier to perform than live cells.
On the other hand, living cells are cells which are still alive and this makes cell imaging difficult.
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3 examples of inherited variation in dragon fruit
Answer:
Dragon fruit, a kind of fruit belonging to Hylocereus spp., has brought about interest in China not only due to its important economic value with high contents of nutrients, but also due to the striking tolerance to drought stress. Fifteen morphological traits and 111 Inter-Simple Sequence Repeat (ISSR) markers generated from 16 primers were firstly employed to discriminate 50 accessions recently selected in China, as well as to evaluate their genetic relatedness. According to univariate statistical analysis of morphological traits, high variations were observed between or/and within the wild and cultivated lines. The dendrogram of 50 accessions was constructed based on morphological traits. Taking 7.50 as a threshold, three major clusters could be observed, i.e. the first included nine genotypes, which mainly belonged to wild accessions; the second clusters standing for the red pulp genotypes; the third consisting of the white pulp accessions. Each ISSR primer generated 4–10 obvious DNA bands ranging from 100 bp to 1500 bp, with the average of 6.9 per primer.
Dragon Fruit is found in Central America, Northern South America and some parts of Mexico.
There are three different types of Dragon Fruit which are its inherited variations.
Hylocereus undatus or piyata blanca which is pink or red skin having white flesh and black seeds.
Hylocereus costaricensis or piyata roja which is pink or red skin having red flesh and black seeds.
Hylocereus megalanthus or piyata amarilla which has yellow skin, white flesh and black seeds.
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How should “free water” have been administered to the patient?
Answer: Via ice chips or water, although not appropriate for all patients.
Explanation:
Patient is allowed to drink water btwn meals (beginning a minimum of 30 mins after meals); oral care must be done prior to consuming water; patient should be upright and use appropriate swallowing strategies.
Which substances leave the blood by diffusing directly through the plasma membrane of endothelial cells
Answer:
Carbon dioxide
-Steroid hormones
-Oxygen
Hopefully I will be helpful
thermal is to heat as_ is to water
a.drain
b.waste
c.dilute
d.absorb
Answer:
absorb
Explanation:
Answer:
D.absorb
Explanation:
cuz i said so
The __________ is the control center of the body. a. brain b. spinal cord c. central nervous system d. peripheral nervous system please select the best answer from the choices provided a b c d
The control center of the human body is the brain. The brain keeps and controls the challenge of virtually all physical features including digestion, excretion, the thrashing of the heart.
Your mind is just like the manage middle of your frame. It controls your respiration and heartbeat. It lets you suppose and learn. The mind is so "valuable" to all of your frame systems, it is now no longer sudden that the mind and spinal twine are known as the valuable frightened system.
What is the brain made up of?The human mind is by and large composed of neurons, glial cells, neural stem cells, and blood vessels. Types of neurons encompass interneurons, pyramidal cells such as Betz cells, motor neurons (higher and decrease motor neurons), and cerebellar Purkinje cells.
Thus it is clear that the brain is the control center of the body.
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Answer:
Brain
Explanation:
11. What would happen to the squid population if the crab population increased? Why?
12. What would happen to the sea otter population if the crab population increased? Why?
13. What would happen to the carrying capacity (increase or decrease) if all of the producers
in the food web died? Why?
14. What would happen to the total energy availability of your ecosystem if sea urchin,
shrimp, and baleen whales increase? Why?
15. More shrimp move into the ecosystem. How will the additional shrimp affect the carrying
capacity of octopus in the ecosystem?
16. More shrimp move into the ecosystem. How will the additional shrimp affect the carrying
capacity of phytoplankton in the ecosystem?
The food web shows how organisms are interconnected in a feeding relationship and how changes in one organism's population affect other organisms.
What is feeding relationship?A feeding relationship shows how two or more organisms which interact together to obtain food are affected by changes that occur to either of the organisms in the relationship.
An example of a feeding relationship is one between the phytoplankton, the shrimp, the crab, the octopus, and the sea otter.
Phytoplankton are producersShrimp eat phytoplankton Crabs eat shrimps Octopus eat crabsSea otters eat octopusIf the crab population increased, the octopus population will increase due to availability of more food.
The sea otter population will increase if the crab population increased due to increase of individuals in the food chain.
The carrying capacity will decrease if all of the producers in the food web died because their will be no food to support the organisms in the food web.
The total energy availability in the ecosystem will increase if sea urchin shrimp, and baleen whales increase because increase in organisms.
The carrying capacity of octopus in the ecosystem will increase if more shrimp move into the ecosystem.
The carrying capacity of phytoplankton in the ecosystem will decrease if more shrimp move into the ecosystem.
Therefore, a food web shows how organisms are interconnected in a feeding relationship.
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To pass freely through a cell membrane, a molecule must be
O A. small and polar
O B. large and polar
C. small and nonpolar
D. large and nonpolar
Answer:
here's your answer
option c. (small and nonpolar) is correct answer
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In order for our cells to metabolism N2 into 2NH3, a total of _____________ ATP is required.
We have the complete statement to be "In order for our cells to metabolism N2 into 2NH3, a total of 8 ATP's is required"
What is adenosine triphosphate ATP?Generally, The full meaning of the short form ATP is adenosine triphosphate, This is simply an energy-bearing molecule that can be found in the cells of living things.
In conclusion, We see that in the cell of humans, for our cells to metabolism N2 into 2NH3 we tend to use up at least eight adenosine triphosphate for the process
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Does photosynthesis take place in animals, plants, or both animals and plants?.
Animal cells do not undergo photosynthesis. Chloroplasts do not exist in animal cells. Chloroplasts are found in several unicellular eukaryotes, such as Euglena. They have both plant and animal traits.
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What are 2 types of complex inheritance patterns in genetics?
Answer:
2 types of complex inheritance patterns in genetics are:
-Incomplete Dominance
-Codominance
Explanation:
A few more are:
-Multiple Alleles.
-Polygenic Traits.
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Explain why veins have high amounts of quartz.
Veins have high amounts of quartz because this mineral reflects the solubility of the various compounds at different temperatures.
What is Vein?These are blood vessels which carry deoxygenated blood to the heart for oxygenation.
The mineral known as quartz helps it in the area of solubility at different temperature.
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Chloe is developing a model of photosynthesis. The first part of the model is shown below. Which would be the MOST useful next step for Chloe to develop the photosynthesis model further?
A.) Extend the lines for sunlight so that they pass through the autotroph.
B.)Represent a chemical reaction in the autotroph that produces high-energy carbohydrates.
C.)Represent a chemical reaction in the autotroph that produces high-energy proteins.
D.)Draw a circle to represent a heterotroph, and draw a line to connect it to the autotroph.
Answer:
B, because logically, Photosynthesis takes sunlight (light energy), water(h20), and carbon dioxide( c02), and converts it into sugars (glucose / carbohydrates), and oxygen(o2). As D would be less necessary because humans and animals are not autotrophs and do not undergo photosynthesis to produce their own food. it is not the most necessary thing to label.
What is endocrine gland
Answer:
The glands that release the hormones directly into the blood is know as endocrine gland.
Explanation:
Answer:
An endocrine system is a system of glands to create hormones for girls and boys.
Explanation:
An organ that makes hormones that are released directly into the blood and travel to tissues and organs all over the body. Endocrine glands help control many body functions, including growth and development, metabolism, and fertility. Some examples of endocrine glands are the pituitary, thyroid, and adrenal glands.
What happens after air is in the nose does it go to the bronchi then the lungs?
Answer:
the air travels to the alveoli, or air sacs.
Explanation:
If one strand of DNA reads: ATGCTC, what must the complementary strand of DNA be?*
Answer:
TACGAG
Explanation:
The complementary base pair for adenine is thymine and the complementary pair for cytosine is guanine.
What parts of muscle contraction are missing from the model? Describe why these parts are important to the muscle
contraction process.
Answer:
The model only shows the sensory pathway of the reflex arc and does not show the motor pathway. The neuron loop / circuit is incomplete and therefore it does not show how Zoe would react to the nail in her leg
Explanation:
Answer:
The model doesn’t clearly show the neuromuscular junction. This aspect is a crucial part of the process because the nerve impulse triggers calcium channels to open, which stimulates the process of muscle contraction.
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Explanation:
Sample answer
Rabbits were introduced into Australia over 100 years ago for hunting purposes. They have since become a serious pest to farmers. Rabbit populations have increased so much that they displaced many native species of plant eaters. What is the most logical explanation for their increased numbers?
Answer:
They do not have any natural predators to kill them.
Which animal undergoes complete metamorphosis?
praying mantis
termites
grasshoppers
moths
Answer:
Moths go complete metamorphosis
What type of protein is involved in the sodium-potassium pump mechanism?
transmembrane ATPase.
How are the terrestrial and aquatic biomes alike and different?
Answer:
The differences in the biomes are due to differences in the abiotic factors, especially climate. Climate is the typical weather in an area over a long period of time. The climate includes the amount of rainfall and the average temperature in the region. ... Aquatic biomes , which are water-based, such as ponds and lakes.
If the primary structure of the protein is changed, what will happen to a) the secondary structure and b) the tertiary structure of the protein
Answer:
The primary structure refers to the amino acids in a protein molecule. Changing one of the amino acids can affect whether a protein will form alpha helices or beta sheets during folding. If alpha helices and beta sheets are changed, the interactions between amino acids along the length of the protein will be altered as well, leading to changes in the final 3D structure of a protein experiencing a primary structure change.
Explanation:
a) The secondary structure may be affected, and some secondary structural elements may be lost or altered.
b) The tertiary structure will likely be disrupted or changed, affecting the overall folding and 3D conformation.
Protein primary structure refers to changes in the linear sequence of amino acids that make up the protein chain. Because it dictates amino acid interactions and bonding, the fundamental structure is essential for secondary and tertiary structure creation.
a) Primary structural changes impact secondary structure. Hydrogen bonding between amino acids forms secondary structures like alpha-helices and beta-sheets. These relationships may be interrupted if the basic structure is changed, causing secondary structural components to lose or distort.
b) Primary structural changes can also affect tertiary structure. The protein molecule's 3D tertiary structure is governed by hydrophobic interactions, disulfide bonds, and van der Waals forces. Changes in the fundamental structure may disrupt these connections, leading the protein to misfold or lose its 3D shape.
Any protein primary structure mutation can cascade into higher-order structures, causing loss of function or altered biological activity.
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Wetlands help slow the process of erosion by trapping sediments. Please select the best answer from the choices provided T F.
Wetlands help slow the process of erosion by trapping sediments. This statement is true.
What do you mean by Wetlands?Wetlands are the areas where the soil contains an excess amount of water in it.
Wetlands generally function as normal sponges and gradually release the water outside in the soil. And due to this excess amount of water, soil gains its properties by trapping sediments that lead to the slow down of the erosion process.
Therefore, Wetlands help slow the process of erosion by trapping sediments.
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Answer:
True!
Explanation:
The process of crossing over occurs in what phase of meiosis.
Answer:
A crossover happens in the first stage, or division in meiosis.
Explanation:
The crossing over is when the two chromosomes exchange segments with each other. To make sense of it, the parent's two DNA is mixing up to create the baby, so it makes sense to have that the first step, because you would not exist with your parent's DNA.
Which organisms are always on the first level in a food chain?.
Answer: PLANTS ,ALGEA AND BACTERIA
Explanation:
How are punnett squares used to predict the outcomes of genetic crosses.
Answer:
It will help determine the genetic of a offspring.
Explanation:
Which labeled structure identifies where passive water reabsorption takes place in the kidney?.
Passive water reabsorption takes place in the kidney as it would be in the Tubules, both the proximal and the convoluted tubules.
What happens in the tubules?In the tubules, most of the reabsorption happens such as sodium, wherein approximately 65 percent of it is reabsorbed. In the process of reabsorption, both water and the solutes are eliminated from the tubular fluid. Once it is removed, this is then sent into the blood.
Dialysis may be defined as a methodology that significantly eliminates waste products and excess fluid from the blood when the kidneys stop working properly. It is also referred to as renal replacement therapy.
The procedure of dialysis is only performed when the kidney is absolutely unable to perform its normal functions properly. Due to this, the blood gets contaminated and toxic because of the accumulation of waste products that are not eliminated from the body.
Therefore, Passive water reabsorption takes place in the kidney as it would be in the Tubules, both the proximal and the convoluted tubules.
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Egg Drop Student Worksheet
Use this worksheet to design your device and record your data. You can then use this form to help you
write your lab report.
Height of egg drop: __________
Ideas for Prototype Design
Preliminary Sketches (attach separate paper if needed)
Option A:
Advantages: Disadvantages:
Option B:
Advantages: Disadvantages:
Student Guide (continued)
Option C:
Advantages: Disadvantages:
Which of the three designs will you move forward with? Explain your reasoning for selecting this design.
Building the Prototype
What modifications, if any, did you make to the basic design during the construction process?
Predictions
Will your device cushion the egg? How will your device do this?
Will your device increase the time it takes for the egg to i
I DON"T KNOW WHAT TO DO!
The cow jumped through the window ( end: the cow)
Which of the following statements would be MOST
important to include in an objective and accurate
summary of the article?
A
People should pay more attention to the
environment in which the food that they
consume is grown
B
Historical and scientific evidence indicates that
healthy soil is essential to sustaining human
populations
0
Governments and international organizations
have rightly taken action to conserve soils.
D
Human development has caused extensive
and irreparable damage to a majority of
Earth's soils
Answer:
B
Explanation:
This is regarding to significance of the soil from which plants grow ,from ecological point of view there is an interaction between organisms with this reason plants are major source of food in most of organism on planet earth!
Cancer cells behave differently than normal body cells. For example, they ignore signals that tell them to stop dividing. Which of the following conditions will most likely cause a normal body cell to become a cancer cell?
Answer:
it affect the lungs that why
How does the way the information is presented help you understand the process?
The author contrasts the materials needed with the desired result.
The author uses headings and numbers in each step.
The author uses descriptive words to help you visualize the recipe.
The author provides suggestions for serving the cake.
Answer:
The author uses descriptive words to help you visualize the recipe.
Explanation: