"Now, gas exchange in the lungs refers to the movement of oxygen into the blood and carbon dioxide out of the blood. Oxygen and carbon dioxide move across what we call the respiratory surface, and that consists of an alveolar epithelial cell and a pulmonary capillary endothelial cell"
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Why is using "illegal marijuana" in a vape form so dangerous? A. The marijuana is likely contaminated
B. The THC level is strongly regulated
C. You're not likely to become addicted
D. It is a safe alternative to tobacco
Most of the carbon in the carbon cycle exists as carbon dioxide in…
A. fossils.
B. the oceans.
C. the atmosphere.
D. nucleic acids.
Answer:
C.
Explanation:
(C).the atmoshphere
What are the 3 layers within this organ?
Answer:
the epidermis, dermis, and the hypodermis
Explanation:
What is the function of the acetone used in paper chromatography to separate photosynthetic pigments
Answer:
It dissolves pigments, allowing them to travel up the paper strip.
Which animals use the specialized roles of diver and barrier while participating in cooperative hunting? ants zebra bottlenose dolphins wildebeests
Bottlenose dolphins use the specialized roles of diver and barrier while participating in cooperative hunting.
What is Diver and Barrier?This is a hunting technique used by dolphins in which five of its members form a barrier while one dives to catch the prey.
This is a form of cooperative hunting which therefore makes option C the most appropriate choice.
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Answer:
Bottlenose dolphins
Explanation:
They have been known to work in groups hunting for food, did you know that they make a dirt wall to confuse the fish into jumping over it, that is how they catch their food, the fish jump and they try to catch them in the air
Can someone help me fill in this chart please?
Monomer
-Carbs : monosaccharide
-Lipids: glycerol & fatty acids
-Protiens: amino acids
-Nucleic Acid: nucleotide
Polymer
-Carbs: polysaccharide
-Lipids: same as monomer
-Proteins: protein/polypeptide chain
-Nucleic Acid: nucleic acid (DNA)
CHONP
-Carbs: CHO
-Lipids: CHO
-Protiens: CHON
-Nucleic Acid: CHONP
Function/Purpose
- Carbs: body's primary source of energy
-Lipids: energy source (long term), cell membranes, hormones
-Protiens: needed for growth and restoration
-Nucleic Acid: Genetic information storage and protein synthesis
Examples
- Carbs: starches, cellulose
- Lipids: oil, wax, fat
- Protein: muscle, hair, nails, enzymes
- Nucleic Acids: DNA, RNA
based on the data, what can you infer about the relative pH of the stomach?
The pH of stomach is important as it helps to induce the digestive enzyme called pepsin. The presence of HCL i.e., hydrochloric acids in stomach results in the pH of stomach to become acidic which range from 1.5 to 6.5 values.
What is the pH level of stomach?When the bolus enters the stomach, it aids the release of gastric juice having enzymes, mucous and HCL.
The upper and lower parts of stomach have varying pH values. Upper part has a pH of 4−6.5, while the lower part is with a pH of 1.5−4.0 which is highly acidic due to HCL.
Thus, the relative pH of stomach is acidic ranging from value 1.5 to 6.5.
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compare light and electron microscope
See the attached file!!!!
Describe how natural selection can occur in a population.
Answer:
Natural selection occurs when individuals with certain genotypes are more likely than individuals with other genotypes to survive and reproduce, and thus to pass on their alleles to the next generation.
Explanation:
chromosomes from blood drawn from a five-day-old baby appears to have slight facial deformities and has been diagnosed with an atrial heart defect
Answer:
A congenital heart defect (CHD) is a heart problem that a baby has at birth. It is caused by abnormal formation of the heart during growth in the womb. In most cases, when a baby is born with a congenital heart defect, there is no known reason for it. Some types of congenital heart defects can be linked to an abnormality in the number of a baby’s chromosomes. They may be linked to single gene defects. Or they may be linked to environmental factors. In most cases, there is no clear cause that can be found for the heart defect. They are often thought to be caused by many factors. The factors are usually both genes and the environment. This means that genes from both parents plus unknown environmental factors lead to the problem.
Explanation:
8. food gives the body energy, which helps the body maintain homeostasis. in the
morning, an athlete eats a nutritious breakfast to get energy to exercise. what are the
main organ systems involved in the process of food from the athlete's breakfast being
broken down into nutrients and then delivered to the cells?
a. digestive and excretory systems.
b. digestive and circulatory systems.
c. nervous and excretory systems.
d. respiratory and circulatory systems.
a. digestive and excretory systems.
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1. Why is most food digested?
A. Digestive enzymes require a variety of substrates.
B. It ensures that the diet is balanced.
C. Most ingested food molecules are large.
D. To prevent disorders of the intestine.
1. Why is most food digested?
C. Most ingested food molecules are large.
Food is digested to break down big particles of food into smaller ones so that the absorption process takes place more efficiently.
Answer:
C
Explanation:
As food molecules are very large during intake, they cannot be absorbed by the small intestine as macromolecules. They need to broken down into smaller molecules for absorption to take place.
Help meeeee plssssss
Adding more solute to a solution changes the A. solubility of the solute B. concentration of the sation. C. polarity of the solute molles.
Answer:
b
Explanation:
adding more solute increases the concentration of the solution
In an embryo, the formation of many types of tissues and organs occurs as a result of the process of.
Answer:
Gastrulation leads to the formation of the three germ layers that give rise during further development to the different organs in the animal body. This process is called organogenesis. Organs develop from the germ layers through the process of differentiation.
what is the medial indentation on the kidneys called
The medial indentation on the kidney called hilum....
hope it's help ;)
I don’t need the answer, I just want to know what my teacher is expecting me to do. Am I supposed to say whether it’s multicellular or am I supposed to describe it some other way? If so, then what way?
Thanks, I just need your opinion ^^
Answer:
I think you have to describe it's features and characteristics and underline or circle the correct option f or unicellular or multicellular
Which animal is native to a different part of the world than the other two?.
The animal that is native to a different part of the world than the other two is the penguin.
What is the penguin?The penguin is one of those birds that do not fly. They are usually found around the southern hemisphere. It is one of the animal that is adapted to living in the sea.
The animal that is native to a different part of the world than the other two is the penguin.
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In one cubic meter of the ocean, photosynthetic plankton produce 80,000 calories of energy each year. How many calories of energy are available in the bodies of the creatures that eat that plankton?
Select one:
a.
80,000
b.
8,000
c.
800
d.
80
8000 calories of energy are available in the bodies of the creatures that eat that plankton. Details about calories can be found below.
How to calculate energy available?In a natural habitat, living organisms feed on one another to derive energy needed for their metabolic activities.
However, only 10% of energy available is transferred to the organism because 90% (most) of the energy is used for the organism's metabolism.
According to this question, in one cubic meter of the ocean, photosynthetic plankton produce 80,000 calories of energy each year.
Therefore, 10/100 × 80,000 calories = 8,000 calories of energy are available in the bodies of the creatures that eat that plankton.
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Life system: cyanobacteria begin photosynthesis and produce oxygen. Earth system: free oxygen reacts with rocks (axidation), resulting in increased rates of weathering for soil
production. Life system: land plants evolve and take root in terrestrial soil.
O Life system: cyanobacteria begin photosynthesis and produce oxygen. Earth system: free oxygen reacts with all available dissolved iron in the ocean. Life system: mass extinction
event of anaerobic organisms occurs from buildup of oxygen in the ocean.
• Earth system: oxygen moves from the ocean to the atmosphere through gas exchange. Earth system: free oxygen reacts with incoming solar radiation to form ozone. Earth system:
ozone collects in the stratosphere to form the protective ozone layer.
O Earth system: molten Earth forms into layers based on density and pull of gravity. Earth system: Earth cooled, and the water vapor in the atmosphere condensed and created the
oceans. Life system: cyanobacteria evolved.
The cyanobacteria were already there without the oxygen, so that rules out A, and a lot of prokaryotes were anaerobic, so that rules out Finally, Photosynthesis does not require oxygen. Instead, Oxygen is a waste product of it.
What is photosynthesis?Photosynthesis is a process that occurs in the chloroplast organelle of plant cells. The typical light reaction of photosynthesis takes place inside the thylakoid membrane of the chloroplast. The chief reactants such as water and carbon dioxide participate in the reaction. The water gets oxidized in the reaction to release oxygen as a product. The carbon dioxide gets reduced.
Thus, Photosynthesis is a process that occurs in the chloroplast organelle of plant cells
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sea turtles enter a high-energy state called ___ after they hatch.
why photosynthesis is known as the pathway for energy
Answer:
Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die. It transforms light to chemical energy.
that's why it's called the pathway to energy.
Explanation:
hope it helps...
The chart below shows some information about two scientists.
Name of
Details about scientist
Views about the solar system
scientist
Nicholaus
Studied Aristotle's theory of homocentric spheres and
Ptolemy's mechanism of epicycles
Suggested that Earth revolved around the
sun in spherical orbits
Copernicus
Johannes Kepler
Studied astronomy and incorporated religious beliefs into Suggested that the orbits of planets were
his works
elliptical
Which of these statements best explains why Copernicus and Kepler had different views about the solar system?
O They came from different cultures.
O They liked to disagree professionally.
O They had different goals and interests.
O They misinterpreted scientific facts and data.
The best statement that explains why Copernicus and Kepler had different views about the solar system is that they had different goals and interests, which is the third option, as Copernicus and Kepler had different perspectives on the solar system.
Copernicus, a Polish astronomer, was interested in the simplicity and elegance of the universe and sought to find a more accurate model of the solar system. He proposed that the sun, not the earth, was at the center of the solar system, which was a revolutionary idea at the time. On the other hand, Kepler, a German astronomer, was more focused on the mathematical and physical aspects of the solar system and used his observations of the planets to develop the laws of planetary motion.
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4. Explain how fusion is one of our sources of energy.
Answer:
La energía de fusión es la fuente de energía del sol y las estrella, la fusión es un proceso que ocurre dentro del sol, por esta razón la luz que vemos y el calor son el resultado de una reacción de fusión.
Which prey would be unique to the short-eared owl of Cuba?
Answer:
A
Explanation:
Gull bones are long and those would be prey based on what other answers are saying
In your own words wright a paragraph of the process of the respiratory system. 4-7 sentences
Answer:
First, you breathe in oxygen through your trachea. The air travels down through the trachea to your lungs. Then your lungs transport the oxygen through your pulmonary artery to your heart. Then the heart transports the oxidized blood throughout your body. Then once the blood gives away all the oxygen your veins take the filtered blood through your pulmonary vein and back to your lungs to get oxidized again. I hope this helps
Explanation:
A biologist who uses the knowledge of the lifecycle of insects establish the time of death
Forensic entomologists are criminal justice and science experts who use their knowledge of how insects aid in bodily decomposition to determine the time and cause of death.
What is entomologists?Entomologists are biological scientists which are specialized in the field and laboratory insects study.
Most entomologists specialize in one or more insect species or groups, such as bees, butterflies, beetles, or ants.
Forensic entomologists are criminal justice and science experts who use their knowledge of involvement of insects in decomposition to determine the time and cause of death.
Thus, the answer is forensic entomologists.
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Which of the following affects the outcome of an experiment?
a
Dependent variable
b
Control
c
Standard
d
Independent variable
Cells in the body use oxygen for cellular respiration. Select the two sentences that correctly describe cellular respiration.
ATP is produced.
ATP is consumed.
Carbon dioxide is absorbed.
Carbon dioxide is released.
Answer:
ATP is produced
Carbon dioxide is released
The two sentences that correctly describe the process of cellular respiration are as follows:
ATP is produced.Carbon dioxide is released.Thus, the correct options for this question are A and D.
What is Cellular respiration?Cellular respiration may be defined as a biological process through which a form of sugar which is known as Glucose is transferred into energy in the form of ATP in the presence of oxygen. This energy is required to accomplish metabolic activities.
The complete reaction of cellular respiration is as follows:
Glucose + Oxygen → Carbon dioxide + Water + Energy (ATP).With the help of the reaction, it can be determined that glucose and oxygen are utilized while carbon dioxide and energy in the form of ATP are produced as products.
Therefore, ATP is produced and Carbon dioxide is released are the two sentences that correctly describe the process of cellular respiration. Thus, the correct options for this question are A and D.
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which of the following organelles are found in plant cells but not animal cells
Answer:
The plant cells have cell wall, plastids, chloroplasts. These organelles are NOT present in animal cells.
