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Related Questions
NEED HELP ASAP PLZ
Write T or True if the statement is true; write For False if the statement is false.
1. The greenhouse effect is a natural process that supports life on the earth for millions
years.
2. The majority of the Earth's atmosphere is composed of nitrogen and oxygen,
greenhouse gases comprise only a tiny fraction of the atmosphere.
3. All greenhouse gases are created as a result of human activity.
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Answer:
1.)True
2.)False
3.)True
Explanation:
that's all I can give
According to the text, adolescents are deficient in their intake of necessary vitamins and minerals because _____
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Answer:
healthy foods cost more.
unhealthy foods are more desirable.
they eat from vending machines in schools.
All of these answers are correct.
Explanation:
Pioneer species are the first species
to appear after a disturbance. What
is one significant characteristic of
pioneer species?
A. They are not adapted to their surroundings.
B. They are very tolerant of extreme conditions.
C. They are the end product of secondary
succession.
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What does an alcoholic beverage contain that is a central nervous system depressant? 
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Answer:
interferes with release of neural transmitter GABA
Explanation:
Alcohol is a central nervous system depressant, meaning it slows down brain functioning and neural activity. Alcohol does this by enhancing the effects of the neural transmitter GABA
depressants essentially "look" like the neural transmitter and so they go in and block the plasce in the brain between synapses, so when the body tries to release GABA, it appears as if it is already filled in, but in reality it is the alcohol that has filled it. once they start buidling up, they block enough that it impairs brain activity
Answer:
GABA
Explanation:
gamma-aminobutyric acid (GABA)
A predator prey relationship. in which the populations rise and fall in response to each other is an example of
A -A positive feedback loop
B - A negative feedback loop
C - A manmade feedback loop
D - all of the above
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Answer:
the answer is d (all of the above)
Explanation:
no
You are maintaining a small population of fruit flies in the laboratory by transferring the flies to a new culture bottle after each generation. After several generations, you notice that the viability of the flies has decreased greatly. Recognizing that small population size is likely to be linked to decreased viability, the best way to reverse this trend is to cross your flies with flies from another lab.
A. True
B. False
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what do dna evidence and the fossil record indicate are the ancestors of the living cetaceans, the mammalian group that includes whales, dolphins, and porpoises?
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DNA evidence and the fossil record indicate are the ancestors of the living cetaceans were land-dwelling mammals. DNA evidence allows to trace the evolutionary origin of taxonomic groups.
DNA evidence refers to the linear order of nucleotides, which can be used to trace the evolutionary origin of a particular taxonomic group.
When the linear order of DNA nucleotides is conserved, it is known as sequence homology.
Fossils are preserved remains of organisms that once lived on the Earth, which can also be used as evidence to trace the evolutionary origin of a given group.
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What is secondary endosymbiosis?
A. a eukaryote envelops another eukaryote
B. a prokaryote preys upon a prokaryote
C. a prokaryote engulfs a eukaryote
D. a eukaryote overtakes a prokaryote
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Answer:
Secondary endosymbiosis is when a living cell engulfs another eukaryote cell that has already undergone primary endosymbiosis. It has happened often enough that it has led to genetic diversity among the organisms on Earth.
Explanation:
hope this helps I don't know Its correct answer
In mitosis the daughter cells are identical to the parent cell. How do the cells produced during meiosis differ from those produced from mitosis
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Answer:
The cells produced during mitosis are identical but cells produced in meiosis are different.
Explanation:
This is because in mitosis, there is no crossing over, but crossing over occur in meiosis. During crossing over, there is swapping of the genetic material.
Help in this two questions
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Answer:
i dont know what it is i need points
Antheridium is similar to Archegonium in all of the following except
The chromosomal set
Their site on the gametophyte is convergent
Number of the gametes produced by each one
Type of division in each one
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Answer:
Explanation:
An archegonium (pl: archegonia), from the ancient Greek ἀρχή ("beginning") and γόνος ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresponding male organ is called the antheridium.
How does your body respond to an increase in the need for energy----why would you need more energy?
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Answer:
Exercise can boost energy levels by raising energy-promoting neurotransmitters in the brain, such as dopamine, norepinephrine, and serotonin, which is why you feel so good after a workout. Exercise also makes muscles stronger and more efficient, so they need less energy, and therefore conserve ATP.
Explanation:
Sexual reproduction in animals depends on the production of gametes. Which of these processes produces gametes in animals?
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Answer: in the ovaries of female, and the testes of male animals!!
Explanation:
A student creates an experiment to determine the effects of oxygen on the growth of a water plant. The student fills three containers with water and adds an aquatic plant to each. Container 1 is open to the air, container 2 has a lid that prevents the exchange of air, and container 3 has a lid with a tube that pumps air into the container. After three weeks, the student observes that containers 1 and 3 have healthy green plants, while the plant in container 2 has not grown, and the leaves show browning areas.
Which explanation provides the reason for the difference in the growth of the plant in container 2?
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Answer:c
Explanation:more oxygen
Answer:
yes
Explanation:
i took it
pls help!!
The following tracking model was created for Hurricane Ike on September 8, 2008. ^^
According to this model, at which point is the storm least likely to make landfall?
1) Point A
2) Point B
3) Point C
4) Point D
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Answer:
Its Point A
Explanation:
The following tracking model was created for Hurricane Ike on September 8, 2008. Map of Gulf Coast showing the forecasted path of Hurricane Ike on September 8, 2008. The storm’s current location, as of 5 p.m. on Friday, is just south of Cuba, over the Caribbean Sea. The “cone of probability” extends northwest. Point A is located along the Texas coast, right in the center of the cone’s widest point. Point B is located along the coast of Louisiana, toward the easternmost edge of the cone. Point C is located further east, along the coast of the Florida Panhandle. Point D is located on the border between Mexico and Texas, toward the southwestern-most edge of the cone. According to this model, at which point is the storm least likely to make landfall?
the size and complexity of the human language has made developing _____ systems difficult.
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Answer:
snesnes
Explanation:
the size and complexity of the human language has made developing Natural-language processing systems difficult.
What is Natural-language processing system ?Natural language processing defined as an automated machine which process and interpret human languages.
The natural language processing system provides a question and answer set that is particularly useful with databases.
The natural-language processing (nlp) system interfacing activity involves accepting human language as input, carrying out the corresponding command, and generating the necessary output.
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What drives subduction at a converging plate boundary?
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Answer:
The geologic features related to convergent boundaries vary depending on crust types. Plate tectonics is driven by convection cells in the mantle. ... Subduction begins when this dense crust converges with less dense crust. The force of gravity helps drive the subducting slab into the mantle
Does the human population in an area affect the environment?
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Answer:
Human population growth impacts the Earth system in a variety of ways, including: Increasing the extraction of resources from the environment. These resources include fossil fuels (oil, gas, and coal), minerals, trees, water, and wildlife, especially in the oceans.
Explanation:
The greatest number of relationships between the
organisms in an ecosystem is best shown in
A. a food chain
B. an energy pyramid
C. a food web
D. an ecological succession diagram
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Trust me I’ve done this assignment
The greatest number of relationships between the organisms in an ecosystem is best shown in a food web. Thus, the correct option is C.
What is a Food web?A food web consists of all the food chains which are present in a single ecosystem. Each of the living thing in an ecosystem is a part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.
For example- A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. It is a food web that shows the many different paths plants and animals are connected.
Therefore, the correct option is C.
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14. Which of the following occurs during the electron transport chain?
a. the formation of ATP by oxidative phosphorylation
b. the formation of water
c. a concentration gradient of protons
d. all of the above
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Answer:
All
Explanation:
The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation. It occurs in mitochondria in both cellular respiration and photosynthesis.
Answer:
D
Explanation:
ATP is created in the ETC
Water is formed as a by product
The concentration gradient is what fuels the ETC. Protons (H+ ions) move across the membrane to create energy.
Hope that helps (and also hope its right, i did bio a while back)
The primary food for supplying energy for muscular activity is protein. Group of answer choices True False Next
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Answer:
Carbohydrates, such as sugar and starch, for example, are readily broken down into glucose, the body's principal energy source. Glucose can be used immediately as fuel, or can be sent to the liver and muscles and stored as glycogen.
what is the advantage of plasmolysis to the terrestrial plants?
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Answer:
plasmolysis make the plants floopy, when water passes out through osmosis the plant become limb
The cell can be restored quickly to its normal turgid condition simply by returning it to a dilute medium or water.
However, plasmolysis prevents normal water balance and other functions of the plant as a whole, and thus plants cannot tolerate prolonged exposure to medium more concentrated than their own cells.
Which of the following vitamins helps prevent night blindness?
A. Vitamin A
B. Vitamin C
C. Vitamin E
D. Vitamin K
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Answer:
Vitamin A
Explanation:
Vitamin helps corrects deficiency and improve night blindness.
How does your body respond to a decrease in blood glucose
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which of the following are photosynthetic organisms?
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Answer:
Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis (Figure 1). Because they use light to manufacture their own food, they are called photoautotrophs (literally, “self-feeders using light”).
What might explain the patterns of population density in northern Africa?
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Answer:
Population density naturally varies a great deal within each country according to climatic conditions, topography, mineral deposits, rainfall, soil cultivation, etc
Which statement best describes what is occurring in the diagram?
A- DNA is being replicated
B- RNA is being used as a template to make tRNA
C- RNA serves as a template to synthesize new DNA molecules
D- DNA serves as a template to make a strand of
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what is the name given to a virus that attacks a bacterium?
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In general, did the simulated mice align with your predictions from the Punnett squares?.
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Research studies are often carried out using mouse. From the study, the simulated mice was said to align with the predictions from the Punnett squares. So the answer is Yes.
The reason why some of the percentages did not exactly match your predicted results because the Mice don't have large litters, so the sample size was not large enough.
If the experiment is to be done again, I can improve upon experimental design by;
Increase the number of mice bred. Examine a different trait within mice. Examine a trait in another species. Test patterns for future generations.A lot of studies is been carried out on the Genetics of the mouse. The early development of inbred lines were studied. The mouse is known to be a good tool to identify the genetic basis of both normal and disease traits.
See full question below
In general, did the simulated mice align with your predictions from the Punnett squares?
(Choices: Yes, No)
Error Analysis: What might be the reason that some of your percentages didn't exactly match your predicted results?
Options are;
Gametes aren't responsible for inheritance. Mice don't have large litters, so the sample size was not large enough. The wrong type of mice were used.
If you did the experiment again, how could you improve upon the experimental design? Check all that apply.
Increase the number of mice bred. Examine a different trait within mice. Examine a trait in another species. Test patterns for future generations
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Answer:
The answer is yes....
Explanation:
it can be said that all cells life begin and end with this process ?
Replication
Meiosis
Mitosis
Cytokinesis
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all cells life begin and end with this process by the process of meiosis
What is meiosis ?
Meiosis is the process where a single cell divides twice to produce four four haploid daughter cells which are otherwise called as gametes; It can occur in two substages such as meiosis I and meiosis II.
Humans have 46 chromosomes in every cell, where 23 chromosomes t came from one of our parents and 23 very similar chromosomes that came from the other parents.
Meiosis I consist of substages like Prophase I where nuclear envelope disintegrates, Chromosomes begin to condense, Spindle fibres appear.
Secondly Prometaphase I where Spindle fibres attach to the centromere followed by Metaphase I where The homologous chromosomes align at the equatorial plate, Anaphase I where he homologous chromosomes move towards the opposite poles.
Telophase I where Spindle fibres disappear, Cytokinesis I where the cytoplasm and the cell division result in 2 non-identical haploid daughter cells.
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