HELPPP ASAP
Sound waves move the fastest through which medium?
O water at high temperatures
O water at low temperatures
O air at high temperatures
air at low temperatures
Answer:
Sound waves move the fastest though water at high temperatures.
Explanation:
Answer:
A
Explanation: just did quiz
During exercise, sensory receptors detect changes in oxygen and carbon dioxide levels in the blood. This information is then sent to the brain's medulla, which causes the heart to beat faster and increases the rate of breathing. Exercising also causes the nervous system to signal the pancreas and thyroid gland to release hormones which regulate metabolism. Which statement is best demonstrated by this scenario? A. Hormones act as signal molecules between all body systems. B. Exercise is important for the body to function properly. C. Nerves transmit and respond to every major system in the body. D. Increased heart rate and blood flow decrease oxygen supply.
A. Hormones act as signal molecules between all body systems
Peripheral Chemoreceptors (Carotid + Aortic Bodies) and Central Chemoreceptors in the Medulla Oblongata detect high Carbon Dioxide levels in the blood during exercise. The respiratory centre in the Medulla Oblongata + PONS stimulate the intercostal muscles and the diphragm to contract in order to increase the rate and depth of breathing as to decrease levels of Carbon dioxide in the blood.
The thyroid gland secretes thyroxine which speeds up metabolism (the rate at which cells use glucose)
Answer:
B. Nerves transmit and respond to every major system in the body.
Explanation:
Which of the following would NOT be considered Lamarckian ideas about evolution?
Answer:
noelos
Explanation:
is a general condition when an organism gains or loses one or more chromosomes but not a complete set. 2. is a general condition where complete haploid sets of chromosomes are present. 3. is a loss of one chromosome from an otherwise diploid genome. 4. is a gain of one chromosome in addition to an otherwise diploid genome. 5. is a trisomy of chromosome 13 in humans. 6. is a trisomy of chromosome 18 in humans. 7. is the addition of one or more extra sets of chromosomes, identical to the normal haploid complement of the same species. 8. is the case of polyploidy when the chromosomes originate from the hybridization of two different species, usually closely related.
Answer:
The correct term for each description s given below:
Explanation:
1. aneuploidy - is a general condition when an organism gains or loses one or more chromosomes but not a complete set.
2. Euploidy - is a general condition where complete haploid sets of chromosomes are present.
3. Monosomy- is a loss of one chromosome from an otherwise diploid genome.
4. Trisomy- is a gain of one chromosome in addition to an otherwise diploid genome.
5. Patau syndrome -is a trisomy of chromosome 13 in humans.
6. Edwards syndrome -is a trisomy of chromosome 18 in humans.
7. autopolyploidy -is the addition of one or more extra sets of chromosomes, identical to the normal haploid complement of the same species.
8. allopolyploidy - is the case of polyploidy when the chromosomes originate from the hybridization of two different species, usually closely related.
explain the structure of nephrons
Structure of nephron : The filtration units in the kidney are called nephrons. Each kidney has a large number of nephrons which are packed closed together. Nephrons consist of a cup shaped Structure called Bowman's capsule in which a cluster of very thin walled blood capillaries form glomerulis . This cup shaped structure is followed by long tubular structure which is convoluted , twisted and finally leads to the collecting duct.
Functions of nephron : : Nephrons help in filtering nitrogenous waste from the blood. The blood entering the glomerulus contains waste which are filtered in the Bowman's capsule. The filtrate formed may contain some useful substances such as glucose, amino acids, salts and a major amount of water. These are selectively reabsorbed as the urine flows along the tube, The amount of water reabosrbed depends on how much excess water is there in the body andhow much dissolved waste there is to be excreted .
* For structure of nephron * refer to attachment !
which of the following best describes the process of conjunction
Answer:
there is not any options given..
Explanation:
but conjuction is a noun.it joining together elements..
for an example i can both play volleyball and football ...
hope this help you.
The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Yellow pods are the dominant trait. The flowchart is missing the labels that describe the traits. A flow chart is shown. A and B both go to C. C goes to both D and E. In which squares should the phrase “Yellow pods” appear? A and D B and E A, C, and D A, B, C, D, and E
Answer:
its E
explanation : its just a hunch
A classification of metamorphic rocks would include whether they are ____.
a.
chemical or organic
c.
foliated or nonfoliated
b.
intrusive or extrusive
d.
basaltic or granitic
Please select the best answer from the choices
Answer:
C. Foliated or nonfoliated
Explanation:
Which equation has water as a product in the chemical reaction?
Answer:
What are the options? If I had to guess NaOH+H2 Na+H2O
Explanation:
Answer:
B. NaOH + -> Na + H2O
Explanation:
i. In which structure does photosynthesis take place? [2 marks] ii. Name the substance in chloroplasts which absorbs light. [2 marks] iii. Through which structure does carbon dioxide enter the diagram? [3 marks] iv. What role does sunlight play in photosynthesis? [3 marks]
Answer:
1. Photosynthesis takes place in the chloroplasts.
2. This substance is called chlorophyll.
3. Structure G (Stoma)
4. Sunlight provides energy (light energy) to the chloroplasts for photosynthesis to take place.
Explanation:
Scientists hypothesize that oxygen began to accumulate in Earth’s atmosphere after the appearance of living things with the ability to
Answer:release carbon emissions
Explanation:
How many brains does a octapus have?
Answer:
9 brains
Explanation:
No explanation, but you can fact check this by looking it up :)
Answer:
9 Brains are there...!
hope this helps
plsss help asap
Self testing is an important step in the immune system because it
increases the lethality of B-cells.
increases the lethality of T-cells.
eliminates all lymphocytes that have been built that would bind and kill healthy, unaffected body cells.
Answer:
The correct answer is - eliminates all lymphocytes that have been built that would bind and kill healthy, unaffected body cells.
Explanation:
Self-testing in the immune system is a very important step as it helps in analyzing if the immune cells or lymphocytes. To fight against the intruders, the immune system should initially recognize them. That is, the immune system must have the option to recognize what is nonself (remote) based on what is self. The immune system can make this identification since all cells have distinguishing recognition molecules (antigens) on their surface.
Self-test helps in identifying and eliminate in all lymphocytes that have built and attack the healthy cells and killing them.
Continue adding new species to your volcanic island until you have a successful ecosystem. Drag and Drop the species in order to how they invade the volcanic island. Lichen, Climax community, Bushes, Primary consumers, Pollinators, Moss, Secondary consumers, Trees, Tertiary consumers, Flowers, and Grass
Answer:
The order of arrangement is as follows
Lichen →Grass → Moss → bushes → Flowers → Pollinators → Trees → Primary consumers → Secondary consumers → Tertiary consumers
Explanation:
The type of succession that results in a successful ecosystem where initial soil condition is a volcanic island devoid of life any life form and without a soil formation is that of primary succession and involves the gradual ecosystem growth in a long time duration
Organic activity in primary succession is started by pioneer organic species which develop a community of interacting organisms from their biological activities resulting in the arrival of new species and the continuing development simple initial community into a successful complex ecosystem.
what two things warm water
Answer:
To put it on heat it can warm water.
Explanation:
Answer:
Boiler and a kettle
Explanation:
I
Based on your understanding of the process of photosynthesis, what are the strengths and weaknesses of this model?
Answer:
photosynthesis is the process of making food by plant in presence of sunlight and chlorophyll in necessary condition is called photosynthesis .
i think its strength are,
1. it converts the light energy, co2and water inthe form of glucose.
2. it manufactures oxygen during this process.
some weakness are,
1. if there is no sunlight then this process cannot be performed.
2. it may take a long time to do this process.
hope it helps uh..
Answer:
The model’s strength is that it clearly shows that the process is quite complicated and that it takes place in different parts of the chloroplasts. It also shows most of the major molecules produced. But it doesn’t show the major steps of the Calvin cycle, so that’s a weakness of the model. It also doesn’t clearly show the process of the electron transport chain.
Explanation:
plato answer.
mark me brainliest please!!
meaning of balanced diet
Answer:
The diet that contains the required amount of nutrients and minerals in a proper propotion for the body is called balanced diet.
Explanation:
what is a cation????
Answer:
A positively charged ion.
Explanation:
A cation is a positively charged ion. Its opposite would be an anion, a negatively charged ion. An ion is simply a charged (positively or negatively) atom or molecule.
Answer:
Hey mate, here is your answer. Hope it helps you.
Explanation:
A cation is a positive charged ion which has more protons than electrons. If a cation needs to be formed one or more valence electrons should be lost so that there are more of protons. Anion is a negative charged ion which has more electrons. If anion needs to be formed then one or more protons should be lost.
which describes one of oxygen's roles in Earth's atmosphere
Answer:
Oxygen: Oxygen is one of the essential gases for the living beings to survive. The plants produce oxygen as a result of photosynthesis and it has a wide range of role in Earth's atmosphere. Roles: Allows fuels to burn - Oxygen is the reason for combustion. Hope this helps :))
Explanation:
Answer:a on edg
Explanation:
Pollen grains help scientist
Answer:
true
Explanation:
Pollen grains help scientists identify plants and make assumptions on past climate conditions. understand tree growth and make assumptions on past climate conditions.
Answer:
A
identify plants and make assumptions on past climate conditions.
Which statement describes gravity?
There is no defined unit of measurement for gravity.
O Gravity is the force that pulls objects toward Earth's center.
Objects that have a small mass will have no gravitational pull.
Gravitational pull between two objects decreases as the mass of one increases.
Answer:
Gravity is the force that pulls objects toward the Earths centre
Explanation:
Answer:
O gravity is the force that pulls object towards Earths centre.
Explanation:
what is the meaning of photosynthesis
Answer:
Photosynthesis is the process by which plants and other things make food.It is an endothermic (takes in heat) process.Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy.
Explanation:(what happens in this process)
-Sunlight energy is converted into chemical energy by using chlorophyll.Gives plants their green color to the plants.
- Chlorophyll absorbs red and blue light and uses the energy to convert water and carbon dioxide into glucose.
- Plants convert sugar and energy from water, air and sunlight into energy to grow
- formula for photosynthesis : 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy
-formation of carbohydrates from carbon dioxide and a source of hydrogen in the chlorophyll-containing cells (as of green plants) exposed to light.
- Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis .
- plants breath in carbon dioxide and breath out oxygen.
Why do developed countries have lower growth rates than less-developed countries? higher birth rates lower death rates higher death rates lower birth rates
The correct answer is D. Lower birth rates
Explanation:
The growth rate is determined by how fast the population of a country or a zone increases. This factor is higher in developing countries than in developed countries. One factor that contributes to this is the low birth rate in developed countries as people have fewer children in these countries, and therefore there are fewer births per year than in developing countries. This is influenced by the accessibility to contraceptive methods, higher education levels, and cultural values. Also, fewer births mean the population will grow slowly, and therefore the growth rate is lower.
Answer:
lower birth rates
About 70% of the human population can taste the bitter chemical phenylthiocarbamide (PTC), which is found in foods like broccoli. The allele, T, for tasting PTC is dominant over the allele, t, for not tasting it. Calculate the allele frequencies using the Hardy-Weinberg equation, where p represents the dominant allele frequency, and represents the recessive allele frequency. Which of the following is closest to your results?
A. p = 0.45; q = 0.55
B. p = 0.84;q0.55
C. p = 0.70;q=0.30
D. p = 0.84; q = 0.16
Answer:
c
Explanation:
Geneticists have discovered the existence of meiotic drive genes, which have alleles that, when present in a heterozygous state, are able to become incorporated into much more than 50 percent of the gametes. As a result, the offspring ratios are not what Mendel would have predicted. Which statement about these meiotic drive genes is true
The given question is incomplete as the statements are not give, however, the the answer is given on the general knowledge about the question:
Answer:
The correct answer would be - They violate the law of equal segregation.
Explanation:
According the first law of Mendel, the law of segregation that says that during gamete formation, the two alleles, present at a gene locus segregate from one another and each gamete has 50% of containing any of two allele.
In meiotic drive genes, the alleles present are if present in a heterozygous state, are able to become incorporated into much more than 50 percent of the gametes which is against the law of segregation.
The correct answer would be - They violate the law of equal segregation.
Which correctly lists three main causes of deforestation? air pollution, mining, logging mining, cattle ranching, logging cattle ranching, water pollution, air pollution water pollution, logging, mining
Answer:
The other guy was wrong!
The actual answer is B. or Mining, cattle ranching, logging.
I got this right on edge 2021!!!
Hope this helps!!!
Please give brailiest!!!
Answer:
B) Mining, cattle ranching, and logging.
Explanation:
All I know is that logging causes deforestation which is very destructive. The other guy is correct
Which of these fields of science would be most helpful to an environmental
scientist studying the impact of climate change on mangroves in this
community?
A. Anthropology
B. Botany
c. Zoology
D. Geology
The field of science that would be most helpful to an environmental scientist studying the impact of climate change on mangroves in a community is B. Botany.
What is cell?A cell is the basic unit of life that makes up all living things, including animals, plants, fungi, and bacteria. It is the smallest structural and functional unit of an organism that is capable of performing all the functions of life, including metabolism, growth, reproduction, and responding to stimuli. A typical cell is composed of a cell membrane, cytoplasm, and a nucleus (in eukaryotic cells), or a nucleoid region (in prokaryotic cells). The cell membrane is a selectively permeable membrane that surrounds the cell and separates it from the environment, regulating the exchange of materials between the cell and its surroundings.
Here,
Botany is the branch of biology that deals with the study of plants, including their structure, physiology, genetics, ecology, and evolution. An environmental scientist studying the impact of climate change on mangroves would need to have a strong background in botany to understand the biology and ecology of mangroves, such as their growth patterns, reproductive strategies, and responses to environmental stressors. They would need to understand how mangroves are adapted to their environment, how they interact with other organisms in the ecosystem, and how they are impacted by climate change.
To know more about cell,
https://brainly.com/question/19138651
#SPJ1
Why cant Solar Cells
Work at night ?
Answer: because there is no sunlight
Explanation: Solar cells are also called as photovoltaic cells. They convert light energy to electricity
Which best describes the scientific process?
A. A guess about a scientific idea
B. A group of scientists
C. A type of mathematics
D. A way to answer scientific questions
SUBMIT
Answer: I thinks it’s a. A guess about a scientific idea
Explanation:
What is the Hepatic Portal Vein?
Answer: The hepatic portal vein is one of the most important vein that receives blood from the body and transports it into the liver for filtration and processing. This vein is part of the hepatic portal system that receives all of the blood draining from the abdominal digestive tract, as well as from the pancreas, gallbladder, and spleen.
‘Hepatic’ means of or relating to the liver, therefore the hepatic portal vein is a blood vessel that sends nutrient-rich blood from the gastrointestinal tract and spleen to the liver, but also delivers toxins to the liver that will be chemically modified in the proces of detoxication
Answer:
Explanation:
hepatic portal vein is located in the upper right quadrant of the abdomen. It is typically 8 centimeters long in adults. The portal vein is responsible for carrying blood from the GI tract, gallbladder, pancreas, and spleen to the liver.The hepatic portal vein originates behind the neck of the pancreas and is usually formed by the convergence of the superior mesenteric vein and the splenic vein, referred to as the splenic-mesenteric confluence.