correct answer B.) "The cell is prokaryotic because it does not have a nucleus."
Based on the options provided:
A.) "The cell is prokaryotic because it has a nucleus." - This is incorrect because prokaryotic cells do not have a nucleus.
B.) "The cell is prokaryotic because it does not have a nucleus." - This is correct. Prokaryotic cells, such as bacteria, do not have a membrane-bound nucleus.
C.) "The cell is eukaryotic because it has a nucleus." - This is incorrect because eukaryotic cells do have a nucleus, but the presence of a nucleus does not automatically indicate that a cell is eukaryotic.
D.) "The cell is eukaryotic because it does not have a nucleus." - This is incorrect because eukaryotic cells do have a nucleus.
correct option B
What is runoff and how is it related to erosion?
Fossils can only be formed when?
Fossils can only be formed when mud, silt or tar is in the area to preserve the fossil, If erosion does not occur and allows the fossil to form, and Oxygen and microorganisms cannot decay the bones.
When coral animals die, their skeletons fall to the sea floor. true or false
Answer:false]\\
Explanation:
Please help !!!!!!!!!!!!!!!!!!!
Astronauts experience similar feelings of dizziness and disorientation upon arrival in space and upon their arrival back on Earth. What does this indicate to researchers?
Final answer:
Dizziness and disorientation felt by astronauts indicate their bodily sensitivity to changes in gravity when transitioning between Earth and space, where they experience microgravity conditions leading to muscle atrophy and bone loss.
Explanation:
The sensations of dizziness and disorientation astronauts experience upon entering space and returning to Earth indicate that the human body is sensitive to changes in gravity fields and acceleration. In space, astronauts experience weightlessness or microgravity because they are in a state of constant free-fall towards Earth, similar to how passengers might feel if an elevator cable snaps or in a plane in descent. This creates an environment where the gravitational force is still present but does not give the sensation of weight. Furthermore, this microgravity condition can lead to significant physiological changes such as muscle atrophy and bone loss, which researchers continually study to better understand and mitigate.
Extended periods of living in a microgravity environment pose challenges, such as the atrophy of muscles and the loss of bone mass due to the lower mechanical demands on the body compared to Earth's gravity. Understanding the effects of microgravity is crucial for planning longer space missions and ensuring the health and safety of astronauts. Cardiovascular adaptations also occur due to the absence of gravity-induced pressure differentials in the body's blood distribution, affecting heart function.
In the carbon cycle, carbon is taken in by plants A) as ammonia in the process of assimilation B) as carbon dioxide in the process of decomposition C) as carbon dioxide in the process of photosynthesis D) as water vapor in the process of photosynthesis
Imagine that you are buying books one by one and then piling them up after reading them. Which geologic concept could you use to identify the topmost book as the newest?
A.
principle of inclusion
B.
principle of lateral continuity
C.
law of superposition
D.
principle of unconformities
Answer: Law of superposition.
Explanation: The law of superposition is an axiom that can be used as the basis of geology and archaeology.
This is a form of relative dating which can be used to determine the age of the rock. It states that the oldest layer will be at the bottom of the sequence and the newest layer formed will be at the top of the sequence.
Buying books and piling the books after reading them shows the law of superposition.
Where dose deposition form in the atmosphere
Which of the following limit cell size? Select all of the answers that apply.
A. ratio of surface area to volume
B. rate of moving materials across the cell's membrane
C. efficiency of using the information in a cell's DNA
D. efficiency of DNA replication and cell division
Answer:
The correct answer would be A. ratio of surface area to volume .
The cells are mostly spherical in shape.
The surface area of the sphere = 4πr²
The volume of the sphere = (4πr³)/3
Thus, the increase in size would increase the volume (r³) more as compared to the increase in surface area (r²).
The ratio of surface area to volume would decrease due to which the diffusion rate would not be efficient enough to distribute the essential elements throughout the volume of the cell.
The cell would not be able to survive.
This is the reason that cells have a small size.
The answer options (factors) that are capable of limiting a cell size include the following:
A. ratio of surface area to volume.
B. rate of moving materials across the cell's membrane.
C. efficiency of using the information in a cell's DNA.
A cell can be defined as the fundamental (basic) functional, structural and smallest unit of life, which is mainly found in all living organisms.
Some of the factors that limit the size of a living cell include the following:
The ratio of surface area to volume: this is always required to be small, so as to allow sufficient materials such as food, move through the cell membrane quickly for the cell's survival.The rate of moving materials across the cell's membrane: the survival of a cell is highly dependent on the rate at which necessary materials move across it's cell membrane.The efficiency of using the information in a cell's DNA: a small sized cell has higher efficiency in the use of information that are stored in its deoxyribonucleic acid (DNA).Read more: https://brainly.com/question/19559847
What is the total numbet of atoms in Oxygen?
P.S. is the table above right?
The molecule of Oxygen has 2 Oxygen atoms.
Please correct any mistakes in my answer..Glad to help ya! :)
Which statement is most likely to be true, based on the drawings below? Two skulls A. Species A had more massive jaw muscles than species B. B. Species A walked more upright than species B. C. Species A was more capable of speech than species B. D. Species A was more similar to modern humans than species B.
The correct answer is: A. Species A had more massive jaw muscles than species.
Massive jaw muscles are correlated to more primitive diet. It is believed that shrinking jaw muscles is part of the evolution. It is the way for making the space for a bigger brain.
Answer:
The correct answer is: A. Species A had more massive jaw muscles than species.
I hopes this helps
Explanation:
The state of matter that exists only at extremely low temp is called Bose Einstein
The state of matter that exists only at extremely low temp is called Bose Einstein condensate
organisms need to maintain homeostasis, or stable internal conditions. Why is homeostasis important for the function of enzymes
Maintaining homeostasis is important for the function of enzymes because enzymes are sensitive to changes in factors such as temperature and pH. Homeostasis ensures that these factors remain within optimal ranges for enzyme activity, allowing them to function properly.
Explanation:Enzymes are critical to the body's healthy functioning as they assist with the breakdown of food and its conversion to energy. Maintaining homeostasis is important for the function of enzymes because enzymes are sensitive to changes in factors such as temperature and pH. Homeostasis ensures that these factors remain within optimal ranges for enzyme activity, allowing them to function properly.
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How long after crocodile mating are the eggs laid?
Crocodiles normally take 3 or 4 weeks to develop their eggs after mating. After laying the eggs, it'll take them 3 months more or less to hatch.
Hope it helped,
BioTeacher101
around 80 days
The eggs have an incubation period of around 80 days. The rate of development is strongly influenced by temperature. The warmer it is the faster they grow! After two to three weeks the temperature of the nest determines the sex of the embryo
Btw can i have brainliest
40 POINTS! DON'T GUESS! Millions of years ago, the Indian plate began pushing gradually towards the Eurasian plate. The land above started rising in various patterns. Which physical feature most likely resulted from such a motion?
This is probably a mountain. It was caused by the crust moving together. When one tectonic plate moves beneath another at a plate boundary the plate boundary it is called is Convergent boundaries. So mountains form at convergent boundaries.
Folded mountain with waves, twists, and turns
Its actually beautiful there!
The Himalayas is the physical feature resulting from the collision between the Indian and Eurasian tectonic plates. This ongoing process causes the rise of the mountains and frequent seismic activity in the region.
Explanation:The physical feature that most likely resulted from the motion of the Indian plate pushing towards the Eurasian plate millions of years ago is the Himalayas. This massive mountain range was formed by the collision of the two tectonic plates, a process that continues to this day. As the plates collide, the land above is pushed upward, forming the mountain ranges we see. The continued pressure not only results in the elevation increase of the Himalayas by one to five millimeters per year but also makes the region seismically active, leading to frequent earthquakes and tremors.
The creation of the Himalayas and other mountain ranges such as the Tibetan Plateau is a prime example of the dynamic nature of Earth's crust caused by plate tectonics. This geologic activity reflects the constant motion of tectonic plates and the associated heat transfer process that helps cool the Earth's interior.
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Are viruses alive? The scientific debate continues. Viruses exhibit some characteristics of life, but others are missing.
The MOST obvious reason why scientists still refer to viruses as non-living is that they
A) do not change over time.
B) do not contain any genetic material.
C) are much smaller than anything alive.
D) are not composed of one or more cells.
Answer:
D) are not composed of one or more cells
Explanation:
Viruses are considered as non-living things because viruses can be obtained in crystals and do not change over time. It is a non-living property. They remained as it is for a long time but can replicate using energy of the host. Therefore, they are non-living outside a host cell. They are made of nucleic acid and protein. They do not made of cell or cells.
Does studying fossils show us that life, environments, or both of these change over time?
A.
Studying fossils shows us that only life changes over time.
B.
Studying fossils shows us that only environments change over time.
C.
Studying fossils shows us that both life and environments change over time.
Well, I know logically that both life and environment change over time. So I think the answer would be C, studying fossils shows us that both life and environments change over time. Hope this helps.
Volcanoes impact both the air and land of the surrounding environment. Please select the best answer from the choices provided T F
WILL MARK AS BRAINLIEST!!!!!
A hydra is an aquatic organism that lives in fresh water. During reproduction an outgrowth begins to form on the parent. The outgrowth continues to develop into the daughter organism and eventually breaks off of the parent. Which type of reproduction does this represent?
A.
binary fission
B.
regeneration
C.
budding
D.
vegetative propagation
C is the correct answer
The right answer is C
Gemmiparity (or budding) is a type of asexual or vegetative multiplication, in which a bud develops which then separates before evolving into a complete individual. The new organism is a clone that has the same genome. Buds, also called sprouts, may include a rough outline of all the parent's tissue, or only some of them.
what indicates to a muscle that it should contract
Which statement about natural selection is true
please write the statements to get help
Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.
The correct option is (C).
1. Natural selection is a fundamental mechanism of evolution proposed by Charles Darwin, where individuals with advantageous traits are more likely to survive and reproduce, passing on those traits to their offspring.
2. This process results in the gradual accumulation of beneficial traits within a population over successive generations, leading to the adaptation of organisms to their environments.
3. Natural selection acts on existing variation in traits within a population, favoring traits that enhance an organism's ability to survive and reproduce in its specific environment.
4. Over time, natural selection can lead to changes in the frequency of traits within a population, ultimately driving the process of evolution.
5. While natural selection is a central concept in evolutionary biology, it is not synonymous with evolution itself. Evolution encompasses a broader range of processes, including genetic drift, gene flow, and mutation, which collectively contribute to the diversity of life on Earth.
complete question given below:
Select the correct answer. Which statement about natural selection is true? A. Natural selection and evolution are two terms for the same phenomenon.
B. Natural selection is an outdated theory to explain how evolution took place.
C. Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.
D. Natural selection is the process by which organisms develop variation in traits, which gives them a better chance of survival.
What is endosymbiosis?
symbiosis in which one of the symbiotic organisms lives inside the other
Endosymbiosis is a symbiotic relationship where one organism lives inside another, both benefiting, which led to the evolution of mitochondria and chloroplasts in eukaryotes.
Endosymbiosis is a mutualistic relationship in which one organism, typically a single-celled one, lives inside another. This symbiotic relationship is not only beneficial for both organisms involved, but it also played a crucial role in the evolution of eukaryotic cells. It is through endosymbiosis that organelles such as mitochondria and chloroplasts are believed to have originated.
Examples of endosymbiosis include the microbes that produce vitamin K within the human gut. These microbes are protected within this environment and, in turn, provide a vitamin that humans cannot synthesize on their own.
What is the role of acetyl-CoA? Where does it fit into the Krebs cycle?
acetyl CoA: Acetyl coenzyme A or acetyl-CoA is an important molecule in metabolism, used in many biochemical reactions. Its main function is to convey the carbon atoms within the acetyl group to the citric acid cycle (Krebs cycle) to be oxidized for energy production.
Acetyl-CoA plays a key role in the Krebs cycle where it delivers the acetyl group for further metabolism. It is produced from the three-carbon pyruvate molecule and enters the Krebs cycle by combining with oxaloacetate to form citrate.
Explanation:Acetyl-CoA is a crucial molecule involved in many biochemical pathways in cellular organisms where it plays a key role in delivering the acetyl group to the citric acid cycle (Krebs cycle) for further catabolism.
The three-carbon pyruvate molecule generated during glycolysis is converted into a two-carbon acetyl coenzyme A (acetyl CoA) molecule by the enzyme pyruvate dehydrogenase. This transformation releases carbon dioxide and transfers two electrons that combine with NAD* to form NADH.
Acetyl CoA then enters the Krebs cycle by binding to a four-carbon molecule oxaloacetate to form a six-carbon molecule citrate or citric acid. In the process the coenzyme A molecule is simultaneously released.
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Which statement best describes the difference between the sympathetic and parasympathetic nervous system
Answer:
The Statements Are:
A). The sympathetic system sends signals within the brain and the parasympathetic system sends signals between the brain and the body.
B). The sympathetic system controls voluntary body movements and the parasympathetic system controls involuntary functions.
C). The sympathetic system contains the brain and spinal cord and the parasympathetic system contains the peripheral nerves.
D). The sympathetic system prepares the body for stress and activity and the parasympathetic system prepares the body for rest.
Explanation:
He discovered that all cell walls by examining cork & help further our understanding of cell structure.
Robert Hooke
-Hope this helps!
A mutation occurs that prevents a cell from taking in the glucose that it needs for energy production. What most likely to happen?
The cell will die. Because if the cell can not take the glucose and it can not get energy from it. So the activities that can support the normal life of the cell will not continue.
Predator-prey relationships DECREASE
Competition DECREASE
Toxins BOTH
New habitat BOTH
Disasters DECREASE
Increased food source INCREASE
Answer:
thx
Explanation:
Doing an assignment need some help
answer would be A I believe. Im not 100% sure though.
What factors affect population size
Abundant resources
Food availability
Climate
Accesibility
Good soil
Good spots for housing
The mining of oil shale requires ____.
A) semi-arid conditions
B) hot metal-rich fluids
C) Pressurized steam
D) large amounts of water
the answer is D Large amounts of water
The mining of oil shale requires large amounts of water. Correct answer is D).
Explanation:The mining of oil shale requires large amounts of water. Oil shale is a sedimentary rock that contains a significant amount of kerogen, a precursor to oil. In order to extract oil from oil shale, a process called retorting is used, which involves heating the rock to release the oil. Water is needed to cool the retorted oil shale and to separate the oil from the rock.
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