True or False: Evolution can occur at the organismal level.
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?
Answer:
the functions of the endocrine system are intricately connected to the body's nutrition.
Explanation:
Plants that live just one year are known as
List the three parts of the cell cycle.
Answer:
The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.
Explanation:
The parts of the brain that control breathing are the
O A. spinal cord and cerebellum
O
B. medulla oblongata and pons
C. cerebrum and cerebellum
OD. cerebrum and pituitary gland
Why is it important for there to be different species in an ecosystem? What would happen if all the species were the same? Explain why biodiversity matters.
Answer: Biodiversity is the variety of life, which is responsible for ensuring the balance of ecosystems around the world. It provides necessary goods such as food or oxygen, it provides raw materials that favor economic development, it produces energy that we use as fuel, and it is the origin of some medicines. If all animals in an ecosystem were of the same species, the balance would be lost.
Explanation:
An ecosystem is a set of living beings (of different species) that share the same habitat or biotope. There are first of all primary producers, those that are capable of producing organic matter from inorganic compounds. These organisms are autotrophs, such as plants. Then we find in the second step the consumers, heterotrophic organisms (herbivores, carnivores or omnivores) that feed on matter and energy produced by other living beings. And in the last link of the trophic chain of organisms that make up an ecosystem we find the decomposers, those that feed on dead organic matter. In this way, there are complex interactions between different organisms of different species.
Thus, biodiversity is the variety of life, which is responsible for ensuring the balance of ecosystems around the world. It provides necessary goods such as food or oxygen, it provides raw materials that favor economic development, it produces energy that we use as fuel, and it is the origin of some medicines.
If all animals in an ecosystem were of the same species, the balance described above would be lost. If they were all producers like plants, there would be no consumers to control the plant population. If they were all consumers, they would eventually run out of food. And if they were all decomposers, they would not have enough dead organic matter to feed on either. A greater number of species or biological diversity in an ecosystem makes it more resilient. Because species can absorb and reduce the effects of environmental changes on the overall structure of the ecosystem. In addition, they can reduce the chances of a change to a different state.
How do mammals conserve their heat?
Answer:
with hair or fur
Explanation:
All mammals are endothermic. They conserve body heat through their hair and fur.
What are endothermic animals?Those animals that can regulate their body temperature are known as endothermic or warm-blooded animals. They can survive even when the temperature fluctuates during seasonal changes. They can live in various climates.
When the body temperature of a mammal increases too high then this condition is called hyperthermia, and body temperature reduces too low, then it is called hypothermia.
Hypothalamus is a part of the brain that maintains the temperature of the body, it is responsible for heat production and heat loss. In mammals, heat generates during cellular metabolism. This process is called thermoregulation.
Hence, this is how mammals conserve their body heat.
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Sewage sludge (biosolids) removed from a municipal wastewater treatment plant is a mixture of organic material and water. Research and explain why the incineration of sewage sludge may require more energy than it produces. Explain why people may be reluctant to use biosolids as a fertilizer for food crops.
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Answer:
Sewage systems are used all around the world transferring waste to treatment plants where they are filtered and traded in for organic material. If the sluge were to be incinerated it could be repurposed, however the gas used to burn the sewage waste comes from condensing saturated fuel oil and requires 195 SCM of natural gas to successfully complete the chemical transfer. That's a lot of energy, and the natural process costs plenty more then what you're getting in returns. Through the process toxins can develop inside of the incinerated waste which could poison crops and animals, studies also show the process can release carbon monoxide into the air. To conclude it's called sewage waste for a reason, what goes down should stay down instead of putting what we eat and inhale at stake.
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The incineration of sewage sludge may require more energy than it produces because of the high cost of energy.
Municipal wastewater treatment plants are estimated to consume more terawatt hours per year of electricity, which equates to about billions in annual electric costs. That's a lot of energy, and the results show that wastewater sludge able to produced up to 44.82 ml biogas/kg of sludgePeople may be reluctant to use bio solids as a fertilizer for food crops.
because:-
One health risk with the land application of bio solids is the potential exposure to pathogens (disease causing organisms)One of the risk is that the bio solids may contain chemicals that are directly toxic in small concentrations or doses.What is sewage sludge?Sewage sludge is a product of wastewater treatment.
Wastewater enter the sewage system and flow into wastewater treatment facilities, where the solid wastes are separated from the liquid wastes through settling.It form Bio solids.To know more about Sewage sludge here
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What is cancer and why does it happen?
Answer:
Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body's normal control mechanism stops working.
1. Which cell has a cell membrane
(1 Point)
O plant
O animal
O both
2. Cell Wall
(1 Point)
O Plant
O Animal
O Both
3. Chloroplast
(1 Point)
O plant
O animal
O both
4. Cytoplasm
(1 Point)
O Plant
O Animal
O Both
Answer:
1. both
2. plant
3. plant
4. both
Hormone that increases the size of the Graafian follice
Why are saber teeth analogous structures?
Answer:
Analogous structures are structures that are similar between animals but different due to years of evolution. Like bug wings and bird wings. Saber teeth are like this with lion teeth, elephant tusks, etc
Explanation:
Thylacosmilus, a marsupial has saber teeth. Smildon which is a mammal also has saber teeth. But they do not have any common ancestor. So saber teeth do not have similar origins but have the same function and are analogous structures.
What is meant by analogous structures?The features that are similar in function but do not necessarily have structural similarity are referred to as analogous structures. They are not derived from common ancestors. The homologous structures on the other hand have similar origins and have similar functions.
The canine teeth in mammals are called saber teeth. They are found on either side of the incisors and are present in both the top and bottom of the mouth. These teeth are used by mammals to tear the food apart. They are the most pointed of all the teeth.
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The pigment molecules (chlorophyll) responsible for photosynthesis are located in the:
A) Mitochondrion
B) Cytoplasm of the cell
C) Stomata
D) Chloroplast
What does a plant need to take in to perform photosynthesis?
Answer:
A plant needs carbon dioxide and water in order to perform photosynthesis. Also, it needs sunlight to make its food.
Hope this helps!
Which of the following lines
of poetry uses repetition
(repeated words)?
A. It only gives our wish for blue a whet.
B. Since earth is earth perhaps, not
heaven (as yet) -
C. Though some savants make earth
include the sky;
D. In here and there a bird, or butterfly,
Answer:
I wanna say b
Explanation:
since the word "earth" is said twice
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right answer gets brainliest
Which statement best describes what is happening in the cell above?
The cell is in anaphase because the sister chromatids have separated.
The cell is in prophase because the sister chromatids have condensed.
The cell is in telophase because the chromosomes are still paired.
The cell is in metaphase because the chromosomes have replicated.
Based on the stages of cell division, the picture depicts the process of anaphase because the sister chromatids have separated
What is cell division?Cell division on is the process by which cells divide to produce new daughter cells.
The process of cell division is of two types known as mitosis and meiosis.
Cell division occurs in four stages:
anaphaseprophase telophase and metaphaseIn anaphase, the sister chromatids separates.
Therefore, the picture depicts the process of anaphase because the sister chromatids have separated
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After Dante catches the flu virus, he feels very tired and loses his appetite. His body aches and he gets a high fever.
Which best describes Dante's symptoms?
they are a response to an infection, which is an internal stimulus
they are a response to being tired, which is an external stimulus
they are a response to hunger, which is an internal stimulus
they are a response to an illness, which is an external stimulus
Answer:
They are a response to an illness
Answer:
a
Explanation:
Do secondary consumers eat seed but not leaves. true or false
Answer: Secondary consumers mainly eat primary consumers and can be either carnivores or omnivores. This means that they can eat both seed AND leaves. This leading to be false.
Explanation:
(iii) Humans have four types of teeth. State which type of tooth is mainly responsible for the digestion named in (a) (ii) above.
Answer:
als you hage to do is ask internet it eill tell u
Which of the following are forms of money? Select all that apply.
A. loans
B. goods
C. credit cards
D. banks
E. debit cards
F. checks
G. cash
● Describe the steps of bacterial infection.
o You must include answers to the following questions in your response.
▪ Can bacteria affect any cell? How does it target?
▪ What causes the damage to your tissues?
Answer:VBacteria are living things that have only one cell. Under a microscope, they look like balls, rods, or spirals. They are so small that a line of 1,000 could fit across a pencil eraser. Most bacteria won't hurt you - less than 1 percent of the different types make people sick. Many are helpful. Some bacteria help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese.
But infectious bacteria can make you ill. They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli.
Antibiotics are the usual treatment. When you take antibiotics, follow the directions carefully. Each time you take antibiotics, you increase the chances that bacteria in your body will learn to resist them causing antibiotic resistance. Later, you could get or spread an infection that those antibiotics cannot cure.
. Landfill are is a/an: (a) open area (b) high lying open area (c) open area near a river/lake (d) low lying open area
Answer:
d
Explanation:
Landfills are low-lying open areas specifically designed for the dumping of waste materials to be buried later.
Landfills can be for municipal/household wastes, industrial wastes, or for hazardous wastes. They are usually low lying to facilitate their burial after they must have been filled-up and they represent one of the oldest methods of disposing wastes.
Landfills are not just open areas, they are low-lying as opposed to high-lying, and they are not created near rivers or lakes.
The correct option is, therefore, d.
A community is composed of
(1) organisms of the same species in an area
(2) an organism's food supply in an area
(3) all of the different organisms living in. an area
(4) the living and nonliving components in an area
How was osmosis involved in causing Clark’s seizures?
Answer:
his molecules had to have went crazy in and out of his cells really fast to give him the seizure
Explanation:
because osmosis is what moves molecules in and out of the cells
what does hertzsprung-russell diagram display?
A.the distance between Earth and other stars.
B.who discovered each star.
C.temperature and luminosity of may stars
PLEASE HELP!! Much appreciated!
Answer:
The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.
Explanation:
Write a 2 sentence summary about cellular respiration.
Answer:
I looked it up and this what it said
Explanation:
"Cellular respiration is the process in which cells break down glucose, release the stored energy, and use it to make ATP. The process begins in the cytoplasm and is completed in a mitochondrion. Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport."
Cellular respiration can be summarized as:
What is cellular respiration?Cellular respiration is the mechanism by which living cells break down glucose molecules and release energy in the form of ATP molecules.
Energy coupling can be seen in cellular respiration.
Glucose is broken down in an exothermic reaction and the energy released powers the endothermic reaction of ATP generation.
Glycolysis, the TCA cycle, and the electron transport chain are the three steps of cellular respiration.
From one molecule of glucose, 38 molecules of ATP are created in all three stages of cellular respiration.
(Glucose) C6H12O6 + 6O2 → 6CO2 + 6H2O Chemical Energy (in ATP)
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13. How does the protein p53 act as a negative regulator?
Answer:
The major negative regulator of p53 is the Mdm2 proto-oncogene. Mdm2 is transcriptionally induced by p53, thus p53 triggers its own destruction through a negative feedback loop. This feedback loop leads to oscillations in the expression of both proteins following DNA damage.
Explanation:
6.) the process by which large molecules are expelled from a cell
Answer:
A cell uses a process called exocytosis to expel large molecules. The process is shown on the right. Note how the contents are packaged in a membrane bound vesicle which fuses with the cell membrane to expel its contents.
Answer:
A cell uses a process called exocytosis to expel large molecules
Explanation:
If we have a vegetarian person who needs 2,000 calories a day, how many calories must the plants they eat produce?
Select one:
2,200 calories
200,000 calories
2,000 calories
20,000 calories
Answer:
as a vegetarian im confused, wouldnt it be 2,000
Explanation:
Please help me and no file
Explain IN YOUR OWN WORDS why cancer drugs "turn a cancer's weakness against itself."
Answer:
There are several possible reasons for chemotherapy resistance: Some of the cells that are not killed by the chemotherapy mutate (change) and become resistant to the drug. Once they multiply, there may be more resistant cells than cells that are sensitive to the chemotherapy. Gene amplification.