brainly why is it said that the sun provide either direct or indirect energy to all living things on earth
What factors impact a person’s reaction time?
Suppose that during any period of ¼ second there is one instant at which the crests or troughs of component waves are exactly in phase and maximum reinforcement occurs. How many beats will occur in 1 second? A. 8 B. 12 C. 2 D. 4
A pine tree is a _____.
A food handler uses the same spatula to place raw hamburgers on a grill and then remove cooked chicken breast from a frying pan is this correct
No, it is not correct to use same utensils for handling raw and the cooked food.
Cooking raw food an meat with the same utensil, can cause the transmission of meat particles on the hamburger. The hamburger is not cooked in a similar manner to the meat, so, the meat particles on the hamburger may remain uncooked, and may be they are contaminated with some pathogen, which can harm our body system. Hence, it is important to use different utensils for handling raw food and cooked food.
The population of eukaryotic, heterotrophic organisms found near the surface of the ocean is called
In the southwestern desert of the united states there are temporary ponds that form only after heavy summer rains. as a naturalist, you visit these ponds and notice that female frogs mate with males of their own species based only on their calls. the lack of mating between species would be an example of _____ and _____.
The lack of mating between frog species based on calls in the southwestern US deserts is an example of prezygotic barriers and behavioral isolation. In the fish scenario, pollution might lead to an increase in hybridization. Temporal isolation is another prezygotic barrier seen in species with different breeding schedules.
In the scenario where temporary ponds in the southwestern desert of the United States form only after heavy summer rains, and female frogs choose mates based on calls, the lack of mating between species would be an example of prezygotic barriers and behavioral isolation. Prezygotic barriers prevent different species from reproducing and producing offspring. Behavioral isolation is a type of prezygotic barrier where two species do not mate because of differences in courtship behaviors, such as mating calls in frogs.
If we look at the hypothetical situation with two species of fish that had recently undergone sympatric speciation and identified mates through color, and then pollution made it hard to distinguish such colors, it's possible that an increase in hybridization might take place due to the females' inability to accurately choose mates from their own species.
Another type of prezygotic barrier is temporal isolation, which is when two species reproduce at different times of the year and thus do not have the opportunity to interbreed. For example, two species of frogs may live in the same area, but if one breeds from January to March and the other from March to May, they would not mate with each other due to the difference in breeding schedules.
Which of these bones is not a long bone found in the leg:?
Patella is the shortest bone among the following bones. Femur is the longest bone of leg followed by tibia and Fibula. Thus, the correct option is A.
What is Bone?A bone is a living tissue which makes up the body skeleton. These are made up of a framework of proteins called collagen, with calcium and phosphates. A bone is a connective tissue.
Bones store blood and lymph fluids. Bones work with muscles which holds body together and support freedom of movement. This complex system is called Musculoskeletal system.
The femur present in human legs is the longest bone identified. Tibia and fibula are the second and third longest bones in the human body. Patella is the largest sesamoid bone in human body present at the knee joint. This bone is shorter than the other three bones.
Therefore, the correct option is A.
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Your question is incomplete, probably the complete question/missing part is:
Which of these bones is not a long bone found in the leg?
A. Patella
B. Tibia
C. Femur
D. Fibula
Sheri has no trouble falling asleep, but she has difficulty remaining asleep. sheri is suffering from
Sheri is likely suffering from insomnia, which is a consistent difficulty in falling or staying asleep for multiple nights a week over at least a month.
Sheri is having difficulty remaining asleep, which indicates she may be suffering from insomnia. Insomnia is characterized by a consistent difficulty in falling or staying asleep for at least three nights a week over a span of at least one month. In other words, if Sheri experiences frequent awakenings during the night and trouble going back to sleep, it is a symptom of insomnia. Insomnia is the most common sleep disorder and can lead to feelings of fatigue and can affect daytime functioning.
How are the events of excitation-contraction coupling in cardiac muscle cells similar to skeletal muscle cells?
Similar to skeletal muscle, the membrane system involved in excitation-contraction coupling is structured similarly in cardiac muscle.
What is excitation-contraction coupling in muscle?Sarcoplasmic reticulum is sparser, t-tubules are greater in diameter, SR creates connections with t-tubules, and cardiac muscle is composed of dyads as opposed to triads.
These are only a few of the differences, heart muscle contracts with precision to push blood into the circulatory system's channels.
Excitation and contraction coupling in cardiac muscle cells is similar to skeletal muscle cells by providing signals to both muscles.
Therefore, the banding arrangement of cardiac muscle is similar to that of skeletal muscle in that it is striated and divided into sarcomeres.
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Which branch of biology deals with the study of insects?
Ornithology
Botany
Entomology
Phycology
Studies of fat cells a d thyroid cells show that fat cells have fewer mitochondria than thyroid cells. A biologist would most likely infer that fat tissue
Answer:mitochondria
Explanation:
A couple has six children. Two have blood type A, one has blood type B, two have blood type AB, and one has blood type O. What are the genotypes of their parents?
Which type(s) of cells do not have genetic material that is contained in a nucleus?
The type of cell that does not contain a genetic material but has a presence of nucleus is a prokaryotic cell. The prokaryotic cell are considered to be an organism that is unicellular because of the reason that the organelle that it has are lacking.
Cells without a nucleus are prokaryotic cells, such as bacteria and blue-green algae. They have free-floating DNA as they lack a nuclear membrane. Some eukaryotic cells, like mature human red blood cells, also lack a nucleus.
Cells that do not have genetic material contained in a nucleus are known as prokaryotic cells. These cells are characterized by having their DNA located in the cytoplasm, and not enclosed within a nuclear membrane. Prokaryotes, such as bacteria and blue-green algae, consist of these types of cells. Although most eukaryotic cells have a nucleus, there are exceptions, like human red blood cells, which do not contain a nucleus when mature.
Prokaryotic cells are typically found in single-celled organisms, which are the most ancient and numerous forms of life on Earth. Unlike eukaryotic cells, prokaryotic cells lack a distinct nucleus and membrane-bound organelles. The lack of a nucleus means that the genetic information in prokaryotic cells is freely floating within the cell's cytoplasm, often in a circular DNA structure.
Additionally, it's interesting to note that certain eukaryotic cells, such as mature red blood cells in humans, also do not contain a nucleus. While this is not the norm for eukaryotic cells, it is an adaptation that allows these cells to better perform their function of oxygen transport.
Can you match the soil layers with their descriptions?
O Horizon: Rich in organic matter.
A Horizon: Organic-mineral mix with organisms.
B Horizon: Clay and iron accumulation.
C Horizon: Partially weathered parent material.
R Horizon: Unweathered bedrock.
The question shows a diagram of soil horizons labeled O, A, B, C, and R. Below the diagram is an "Answer Bank" with descriptions of soil characteristics. To match the soil layers with their descriptions, we will use common knowledge about soil horizons:
1. **O Horizon**: This is the topmost layer, often rich in organic material. The description that fits this horizon is "almost exclusively composed of organic material."
2. **A Horizon**: This layer is known as the topsoil, where there is a mixture of organic material and minerals. It is typically darker than the layers below due to the organic matter. The fitting description is "a mixture of organic and mineral compounds where living organisms, such as earthworms, are concentrated."
3. **B Horizon**: Also known as the subsoil, this layer has accumulated minerals such as iron oxides from the layers above, which gives it a distinct coloration. The best match is "primarily parent material with accumulated clay and iron oxides that color the soil."
4. **C Horizon**: This layer consists of partially weathered parent material. Since it's less affected by the soil-forming processes, the description "partially weathered parent rock material that soil-forming processes have not changed" applies here.
5. **R Horizon**: This is the bedrock and the lowest of the soil layers. It is made up of large rock mass that has not been broken down or weathered significantly. The correct description is "large rock mass that has not been broken up or significantly weathered."
So the complete answer stepwise would be:
- O Horizon: almost exclusively composed of organic material.
- A Horizon: a mixture of organic and mineral compounds where living organisms, such as earthworms, are concentrated.
- B Horizon: primarily parent material with accumulated clay and iron oxides that color the soil.
- C Horizon: partially weathered parent rock material that soil-forming processes have not changed.
- R Horizon: large rock mass that has not been broken up or significantly weathered.
The complete question is here:
Match the soil layers with their descriptions.
Unlike the other eating disorders, binge eating disorder does not necessarily begin with:
When someone has a binge-eating problem, they frequently experience bouts of eating disproportionately huge amounts of food and lose control over their eating.
What are the main characteristics of eating disorders?People who have Avoidant Restrictive Food Intake Disorder (ARFID) may exhibit extreme pickiness in their eating habits.
Which can result in severe weight loss or nutritional deficiencies, but they may never voice worries about their appearance.
Periods of binge-eating are not followed by purging, strenuous exercise, or fasting, unlike bulimia nervosa.
Australian teenagers who diet are five times more likely than those who don't to develop an eating disorder.
Therefore, binge-eating disorder doesn’t usually begin with losing weight.
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Can a person who commits a tort be sent to jail as a result of his conduct?
Approximately 70-80 percent of cancers in the aging population are the result of
Final answer:
Approximately 70-80 percent of cancers in the aging population are attributed to lifestyle factors, with diet, tobacco use, and alcohol consumption playing significant roles. Environmental components like radon and UV radiation also contribute to cancer risk.
Explanation:
Approximately 70-80 percent of cancers in the aging population are the result of lifestyle factors including diet, tobacco use, reproductive and sexual behavior, and alcohol consumption. Lifestyle choices are considered to cause about 75% of all cancers. Other behaviors that significantly contribute to cancer incidence include poor diet and physical inactivity, which are linked to high rates of obesity, further increasing cancer risk. Environmental factors such as the radioactive gas radon and ultraviolet radiation from the sun also play roles in cancer development, with radon increasing lung cancer risk and UV radiation being a primary cause of skin cancer.
A gecko is a type of reptile. How does a gecko most likely respond to cold air temperatures?
Answer:
The answer is: D
Explanation:
by moving into the sun which is in response to an external stimulus.
How many amino acids are found in living organisms
Increase Energy Efficiency ultimately leads to lower cost. True or False?
The statement that increase Energy Efficiency ultimately leads to lower cost is true. Energy Efficiency leads to both increased profitability and reduction of the CO2 emissions and thereby their environmental foot-print. Better recover and reuse of energy and easier maintenance are some of the things that lead do lower cost.
Explain how the amount of direct sunlight hitting a location near the equator would be different than a location near to one of the poles
The brain contains ________ of interconnected neurons and glia
The brain contains billions of interconnected neurons and glia. Glia cells enclosed the neurons and provide support for and insulation between them. It is also the most abundant cell types in the central nervous system. While Neurons are the basic units of the nervous system and it is the most important part is the brain.
The brain contains billions of interconnected neurons and glia. Neurons receive and transmit signals, and glia provide support and vital functions for the neurons.
Explanation:The brain contains billions of interconnected neurons and glia. Neurons are specialized cells that can receive and transmit chemical or electrical signals, while glia provide support functions for the neurons. Glial cells outnumber neurons by a factor of ten and fulfill vital roles such as guiding developing neurons, buffering ions and chemicals, providing myelin sheaths, and modulating communication between nerve cells.
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Which phase of skin regeneration includes migrating epithelial cells beneath the scab, reduced phagocytic activity, and the dissolving of the clot?
What would happen to an organism if its cells contain no dna ? answers?
What function does the sugar-phosphate backbone of a DNA molecule serve?
What field of science investigates ideas about a possible extraterrestrial origin of life?
Select all that apply. What are some of the ways organisms reproduce asexually?
Budding
Fission
Fragmentation
Differentiation.
Answer:
Budding
Fission
fragmentation
are some of the ways by which organisms reproduce asexually.
Explanation:
Asexual reproduction: where offspring are produced from the single parent and they receive the gene from only that parent. In asexual reproduction there is no fusion of gametes, and there no changes in the chromosomes numbers.
some of the ways by which organisms reproduce asexually are:
Budding: In this new organism is form from the bud as a result of repeated cell division which occurs at one specific site. budding occurs to take place invertebrates like hydras, and corals.Fission: In which cell divides into two parts, which are identical and the same with similar DNA. e.g. Amoeba.Fragmentation:In this organism is break into fragments that result in a new organism. an example is coral, in plants, starfish.The protein that represents approximately 80% of the proteins in milk is
The serous membrane covering the stomach and most of the intestines is called the?
The serous membrane covering the stomach and most of the intestines is known as the peritoneum. This epithelial structure, supported by connective tissue, envelops abdominal organs and has a role in reducing friction between organs.
Explanation:The serous membrane covering the stomach and most of the intestines is called the peritoneum. This membrane is an epithelial layer composed of mesodermally derived epithelium known as the mesothelium, supported by connective tissue. The peritoneum envelopes the abdominal organs and forms double sheets of mesenteries that suspend many of the digestive organs.
The peritoneum is divided into two regions: the parietal peritoneum, which lines the abdominal wall, and the visceral peritoneum, which covers the abdominal organs. The space between these two layers forms the peritoneal cavity, which contains a few milliliters of watery fluid that acts as a lubricant to minimize friction between the peritoneum's serosal surfaces.
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