Answer:
Fish and other aquatic organisms use gills to take up oxygen dissolved in the water and diffuse carbon dioxide out of the bloodstream. Some insects utilize a tracheal system that transports oxygen from the external environment through openings calledspiracles.
Explanation:
please mark as brainlist answers
Answer:
Fish gills
Explanation:
Fish gills are organs that allow fish to breathe underwater.
Which are accurate descriptions of comparative anatomy? Select three options.
may or may not include studies of structures with the same function
only involves studies of structures that are on the outer surface of the body
compares the structures of organisms from different species
always supports the concept of a recent common ancestor
includes studies of homologous, vestigial, and analogous structures
Answer:
1, 3, and 5
Hope this helps :]
Answer:
1: may or may not include studies of structures with the same function
3: compares the structures of organisms from different species
5: includes studies of homologous, vestigial, and analogous structures
Explanation:
1, 3, 5,
Helppppppp meee pleaseeeee
Science Plz Help!!!!!
Answer:
So, I would believe that the answer is C) A laser beam looks bent when it passes through glass blocks. So we know that refraction means the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
Explanation:
So we know that refraction means the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
Hope this helps! <3
Which absorbs more carbon dioxide: the atmosphere or the ocean?
Answer:
The atmosphere
Explanation:
Most of the air travels through the atmosphere tho very little travels through the ocean from air vents, or scuba diver oxygen tanks.
I hope this helped!
I have to find two words for an acrostic poem and it’s about atmosphere and I need a word that starts with R and E?
Why does a Chlamydomonas organism need to locate light
Answer:
the ability to detect the direction of light, to make the right turn and to stay oriented, is a direct consequence of the helical path of the organism, the orientation of its eyespot relative to the helix-axis, and the special shielding properties of eyespot and cell body.
Explanation:
hope this helps :)
Chlamydomonas is an algae. It is a biflagellate organism. It can swim and therefore, exhibit phototaxis. Chlamydomonas needs to locate light in order to move and grow.
What is Chlamydomonas?Chlamydomonas is a biflagellated algae which exhibits both positive and negative phototaxis. Phototaxis is the directional movement of an organism in response to light (stimulus).
The green alga, Chlamydomonas reinhardtii, can swim toward light (positive phototaxis) to increase photosynthesis, but it can also swim away from bright light (negative phototaxis) to avoid damage to molecular complexes required for photosynthesis.
Chlamydomonas grows at a faster rate with higher light intensity due to its photosynthetic nature, provided all other required nutrients for its growth are constant in all treatments. Light acts as an important factor for growth in these organisms.
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A bacterium, containing one circular DNA chromosome, undergoes four rounds of replication. How many new strands of DNA would result?
Answer:
The correct answer is 32 strands.
Explanation:
In bacterium, DNA replication is bidirectional which means it takes place in both directions. The origin of replication starts the replication, it is a specific sequence of nucleotides. Each strand of circular DNA acts as a parent strand to replicate its complementary new strand, resulting in two new DNA strands, one parent strand, and one new synthesized strand. So after the first round of replication, there are 4 strands formed.
Similarly, during the second round of replication each of the four strands will be synthesized lead to a total of 8 strands in the same manner. So by the same process in 3rd round will lead to 16 new strands and by the fourth round of replication 32 strands will be synthesized.
Thus, the correct answer is 32 strands.
Which of the following properties of water accounts for all of the others?
A. Hydrogen bonding
B. High heat capacity
C. Cohesion
D. Adhesion
E. Density
Answer:
(C) cohesion.
Explanation:
cohesion . hydrogen bonds hold water molecules together
Why can you still see the moon during a lunar eclipse?
Answer:
you can see the moon because since the earth blocks sunlight
Earth's atmosphere bends sunlight and indirectly lights up the Moon's surface
What is mitosis?
the part of cell division when the chromatids separate
the time in between when cells divide
the part of cell division when two separate nuclei form
cell division when a parent cell divides into four cells
Answer:
the part of cell division when 2 nuclei form.
Explanation:
Answer:
I had took this quiz and had the same question and options, I also got a 100% on the quiz so trust me. The correct answer would be "the part of cell division when two separate nuclei form"
Explanation:
People with diabetes often receive insulin injections. What effect does insulin have on the body?
It raises blood-sugar levels.
It lowers blood-sugar levels.
It raises glucagon levels.
It lowers glucagon levels.
Answer:
its B lowers blood sugar levels
Explanation:
just got done with the test
Insulin lowers the blood-sugar levels in the body.
What are the functions of insulin?Insulin is a peptide hormone produced by beta cells of the pancreatic islets encoded in humans by the INS gene. It is considered to be the main anabolic hormone of the body.
After you eat, carbohydrates break down into glucose, a sugar that is the body's primary source of energy. Glucose then enters the bloodstream. The pancreas responds by producing insulin, which allows glucose to enter the body's cells to provide energy.
Insulin is a peptide hormone secreted by the β cells of the pancreatic islets of Langerhans and maintains normal blood glucose levels by facilitating cellular glucose uptake, regulating carbohydrate, lipid and protein metabolism.
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Roads are onen bum through forests for industrial purposes or as land is developed for residential and commercial needs. How would road construction
through a forest most likely affect the ecosystem?
Non-native species would replace native species
The number of primary consumers would increase
The natural succession of vegetation would change
All producers would be eliminated from the community
Answer:
The natural succession of vegetation would change
Explanation:
Originally, a forest is an area rich in biodiversity of species. It consists of different populations, and communities. According to this question, if a road is built through a forest for industrial purposes, this will negatively affect the biodiversity of such forest.
One notable occurrence that would result from this is the CHANGE IN THE NATURAL SUCCESSION OF THE VEGETATION. This change is the destruction of the ecosystem that occurs due to industrialization (road construction).
ATP and photovoltaic cells are similar because
A. they are both key components of plant cells.
B. they both produce chemical and electrical energy.
C. they are both key components of solar panels.
D. they both use energy from the sun to separate electrons from atoms.
2021 answers
1. they both use energy transport chains
2. ATP
3. stored as chemical energy
4. carbon dioxide + water + light --> sugar + oxygen
5. photosynthesis
100% :) please like if I am correct
Answer:
100% 2022
Explanation:
1. they both use energy transport chains
2. ATP
3. stored as chemical energy
4. carbon dioxide + water + light --> sugar + oxygen
5. photosynthesis
Where do cells get the oxygen, water, and nutrients they
need to function?
Which of the following correctly matches an organelle and its functions?
Lysosome .... movement
O
Mitochindria..... photosynthesis
Central vacuole .... storage
Nucleus .... cellular respiration
O
Ribosomes ..... manufacturer of lipids
what group of organisms are responsible for capturing energy within ecosystems ?
a. bacteria
b. consumers
c. producers
(I know its not b it has to be either a or b im confused)
A good rule is never to use a glass thermometer for checking food temperatures.
False
True
Answer:
True
Explanation:
Don't use a glass thermometer when taking the temperature of food UNLESS it is in a shatterproof casing.
Answer:
true 10000000000 percent
What do unbalanced trophic levels mean?
Answer:The trophic level of an organism is the number of steps it is from the start of the chain. A food web starts at trophic level 1 with primary producers such as plants, can move to herbivores at level 2, carnivores at level 3 or higher, and typically finish with apex predators at level 4 or 5.
Explanation:
A carbon atom has 6 protons and 6 electrons. Carbon has three naturally occurring isotopes, carbon-12, carbon-13, and carbon-14. Which of these statements is true about carbon and its isotopes? A.All carbon atoms have six neutrons. B.All carbon atoms have six protons and six electrons. C.Atoms of all carbon isotopes have either more than 6 electrons or fewer than 6 electrons.
Answer:
The correct option is B
Explanation:
Isotopes of the same element have the same atomic number (number of protons) but different mass number. Hence, all the three naturally occurring carbon isotopes mentioned in the question have 6 protons each. Since the number of protons in a neutral atom is equal to the number of electrons in the same atom, each of these isotopes also have 6 electrons.
However, to determine the number of neutrons in each atom, the number of protons (atomic number) is subtracted from the mass number.
Hence, the number of neutrons in carbon-12 is 12 - 6 = 6
the number of neutrons in carbon-13 is 13 - 6 = 7
the number of neutrons in carbon-14 is 14 - 6 = 8
From the explanation above, it can be noted that the number of protons and electrons in isotopes of the same element are the same while the number of neutrons in these isotopes are different. Hence, the correct option is B
Answer:
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If there is an increase in mass, what has happened?
Answer:
The greater the mass of an object, the less it will accelerate when a given force is applied. For example, doubling the mass of an object results in only half as much acceleration for the same amount of force. Q: Tony has greater mass than the other two boys he is racing (pictured in the opening image).
Explanation:
Answer:
The greater the mass of an object the more it will accelerate! when a given force is applied the mass of the object will change and thats what causes something called speed! Now you will also increase in energy and it will be hard to slow the object down.
Explanation:
See answer
also can i have brainliest!
Complex carbohydrates are made up of _
Sugar molecules strung together
Which of the following statements about a scientific theory is NOT true?
Answer:
sorry, but there are no statements. Maybe you can edit it and add the pictures so we can see them.
4. In what way is a human lung similar to a plant leaf?
Answer:
Both organs are made up of only one type of protective dermal tissue.
Both organs are responsible for the exchange of oxygen and carbon dioxide gases.
Explanation:
Answer:
Explanation:
A plant leaf is an organ. In what way is a human lung similar to a plant leaf? Both organs are made up of only one type of protective dermal tissue. Both organs are responsible for the exchange of oxygen and carbon dioxide gases. When you think about it they both need to breathe. You can say this and expand it more
.
How many protons, neutrons, and electrons are present in an atom of hafnium, Hf, with a mass number of 178?
Answer:
Name Hafnium
Atomic Mass 178.49 atomic mass units
Number of Protons 72
Number of Neutrons 106
Number of Electrons 72
Answer: 72 protons, 178 neutrons, 106 electrons
Explanation:
Which organelle is correctly paired with its function?
A) nucleus - provides carbohydrates for fermentation
B) Chloroplast - serves ae the site for photosynthesis
C) centriole - synthesizes digestive enzymes
D) lysosome - packages cellular products
Answer:
B) Chloroplast - serves ae the site for photosynthesis
The function of chloroplast is to synthesis food.
The organelle that is correctly paired with its function is the chloroplast, which serves as the site for photosynthesis and is present in Option B as the chloroplast is the site of food synthesis.
What is the significance of chloroplasts in plants?Chloroplasts are cell organelles that are found in the cells of green plants, algae, and some other photosynthetic organisms and are the site of photosynthesis, which is the process by which plants convert light energy into chemical energy in the form of glucose, and it absorbs light energy, which is then used to convert carbon dioxide and water into glucose through a light reaction and the Calvin cycle, and the animals and plants get their food from it.
Hence, the organelle that is correctly paired with its function is the chloroplast, which serves as the site for photosynthesis and is present in Option B as the chloroplast is the site of food synthesis.
Learn more about the significance of chloroplasts in plants here.
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Some examples of nonpolar molecules include fats, oils, and waxes. How do these substances interact with water?
Answer: Fats and oils are nonpolar, so they will remain separate from molecules of a polar solvent such as water. Sodium and chloride ions are attracted to charged regions on molecules of polar solvents such as water.
Explanation: Nonpolar molecules do not dissolve easily in water. They are described as hydrophobic, or water fearing. When put into polar environments, such as water, nonpolar molecules stick together and form a tight membrane, preventing water from surrounding the molecule.
Surface anatomy is the study of
1. shapes and structures on the surface of the body, as they relate to deeper structures.
2. shapes and structures of the internal organs of the body, as they relate to the organ system that they belong to.
3. shapes and structures on the surface of the body, as they relate to parts of the brain.
4. shapes and structures of the internal organs of the body, as they relate to parts of the nervous system.
Answer:
1. shapes and structures on the surface of the body, as they relate to deeper structures.
Explanation:
Surface anatomy describes the study of the external features of the body. It is also sometimes referred to as "visual anatomy" because it involves studying anatomical features that can be visually observed, and doesn't rely on dissection.
Answer:
a. shapes and structures on the surface of the body, as they relate to deeper structures.
Explanation:
A diagram of the DNA strand is provided. The arrow is pointing to which component of the
DNA strand?
Phosphates
Deoxyribose
Nitrogenous bases
Nucleotide
Answer: Nitrogenous Bases
Explanation:
Why is it not easy to replace a link in a food chain?
There are not enough animals to replace the previous organism.
The decomposers will not decompose another type of organisms.
There are not enough plants to replace the previous organisms.
There may be limited type of natural predators organisms may have.
Answer: D
Explanation: Everything in the food chain is there for a reason. Removing one thing could ruin the whole ecosystem
Giving Brainest! HELP ASAP!
Using personal feelings to explain or describe is being __________________________ .
Group of answer choices
influential
objective
factual
subjective
Answer:
subjective
Explanation:
subjective means opinion
or what you feel about something.
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