Answer:
Two aspects of meiosis contribute to variation in offspring are::
1. Formation of bivalent
2. Crossing over
These two occur in prophase I of meiosis.
molly investigated if the age of students caused them to be better drivers. what is the independent variable?
Answer:
The independent variable is the age of the students because it’s what affects their ability to be better drivers
Explanation:
Which microscope part is used in both the electron microscope and the light microscope?
Answer:
compound microscope and stereo microscope
which provide long-term energy storage
Answer:
batterys
Explanation:
The monetized costs and benefits of flood mitigation strategies are difficult to assign to which of the following?
A) The impact of tourism
B) The impact on infrastructure
C) The impact on property
D) The impact on health
What is the difference between aerobic and anaerobic cellular respiration?
Answer: Explanation:
Aerobic respiration is a set of metabolic reactions that take place in the presence of oxygen, occurring in a cell to convert chemical energy into ATPs. Anaerobic respiration is a process of cellular respiration where the high energy electron acceptor is neither oxygen nor pyruvate derivatives.
The main difference between aerobic and anaerobic respiration is that the former takes place in the presence of oxygen while the other is in the absence of oxygen.
Aerobic respiration refers to respiration in the presence of oxygen according to the following equation:
[tex]C_6H_1_2O_6 + 6O_2 ---> 6CO_2 + 6H_2O + 32 ATP[/tex]
While anaerobic respiration refers to respiration in the absence of oxygen according to the following equations:
[tex]C_6H12O6 ---> 2CO_2 + 2C_2H_6O + 2ATP[/tex]
Thus, another difference is that aerobic respiration generates more energy (32 ATP) than anaerobic respiration (2 ATP).
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Why does a compressed air can become extremly cold when you use it?
Answer:
The reason the compressed air gets cold after being used is due to a process known as adiabatic cooling, a property of thermodynamics. A gas, initially at high pressure, cools significantly when that pressure is released. The compression needed to turn a gas to liquid allows a large amount of gas to fit in a relatively small space, and when that gas is released to a large space, it rapidly expands to fill the space.
Which of the following is critical in developing a scientific
question?
A - basing the question on an observation
B - ensuring that the question is totally original
C - developing a question that is not testable
D - making sure the question is easily answerable
Answer:
The correct answer is option B - "ensuring that the question is totally original".
Explanation:
Novelty is one of the basis of any scientific research. The role of a scientist is to observe physical and biological phenomena, ask questions about what she or he observes and perform researches to answer these questions. Additionally all scientist must ensure that the questions she or he asks are totally original in order to avoid expending resources in a research that has already done before.
Scientist work to answer questions about _________ and __________ things in the natural world work.
Answer:
1. Living
2. Non-living
Explanation:
Science is a general term that defines a means of understanding the world around us, at its natural state, involving both living things and non-living things. In other words, science is the systematic study of living things and non-living things.
Hence, in this case, the correct answer is Scientists work to answer questions about LIVING and NON-LIVING things in the natural world work.
Answer:
living and non-living
Explanation:
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Anything that contains an explosive and a detonator is considered a:
Answer: Two-Component Explosive
Explanation:
Which of these is an example of a biotic factor that could limit a community in an ecosystem?
- A drought occurs for several months.
-New predators move into the ecosystem.
-A hurricane passes through an ecosystem.
-Living space is lost due to human activities.
Explanation:
Drought, hurricane and living space are all abiotic factors in an environment. The only biotic factor here is the predators.
Why is short-term environmental change more likely to negatively affect a population than a long-term change?
Short-term environmental changes have negative effects because they cause damage to lives, resources, the economy, and the normal living conditions of people.
What are short-term environmental changes?Short-term environmental changes are those that happen quickly and are more dangerous than long-term changes like floods or events that cause migration, therefore they have a big impact on the population.
A hurricane, for instance, is a short-term event because it only lasts a few hours to a full day. Even while climate change is a long-term issue, it is not currently damaging.
Therefore, a population is more likely to suffer from a short-term environmental change than a long-term one. Because a temporary shift in the environment is typically more harmful.
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Is fructose a mono,di, or polysaccharide
Answer:
Fructose is a monosaccharide. Although it has the same chemical formula as glucose, it has a different chemical structure.
I am located superior to the genital region, inferior to the pectoral region, medial and anterior to the lumbar region. I am superficial and found in the umbilical region.
What body part am I?
Answer:
I believe it is the navel/belly button.
The location of continents has no affect on their climate.
Please select the best answer from the choices provided
ОТ
OF
Answer:
The answer is False because climate is affected by location too. Continent near tropical area and continent near poles can be taken as an example.
One of the roles of ecological succession is to allow species with different adaptations to interact. Ecological succession occurs in stages, providing periods of what A overlap only for species that migrate. B separation only for species that do not migrate. C separation for all species. D overlap for a variety of species.
Answer:
D overlap for a variety of species.
Explanation:
During ecological succession, a sequence of changes occurs in a community at a temporal and spatial level. Local colonizations and extinctions occur while ecosystems evolve at a more complex level.
Ecological succession occurs in stages. The first stages are represented by communities of simple trophic levels and few species. With time, as the communities go through different stages, they transform into more complex ecosystems, that are much richer in diversity, and showing more interaction among the different species that compose it. The final stage is known as the climax and represents a mature and stable system.
While the community is going through these changes, many species get extinct while many others get to emerge and survive. It occurs overlapping of different taxonomic groups that interact with each other competing or beneficiating other groups.
based on their scientific names one can tell that the big cats panthera tigris panthera leo panthera onca and panthera pardus do not belong to
the same what
Answer:
The correct answer is - species.
Explanation:
Panthera is a genus that includes the big cats that belong to the family Felidae known for the biggest cats or spotted cats such as jaguar, leopard, cheetah, and others.
Scientific names of any organism are made up of two components one is the genus (the first part) and the last part known as the species of an organism. So, if the genus name is common the species name is different which means they belong to the same genus but different species.
Thus, the correct answer is - species.
Need Help!! Read the article “Tweaking How Plants Manage a Crisis Boosts Photosynthesis,” and then answer the following questions.
Part A
How might the research described in the article help address the food supply for a growing population?
in the article Tweaking How Plants Manage a Crisis Boosts Photosynthesis he reports that it is the first example in which crop growth was improved by improving photosynthesis, thus making plants more resistant and more productive in difficult climatic times.
How to explain photosynthesis?Photosynthesis is a process carried out by plants to produce the energy necessary for their survival. As it happens? Water and mineral salts are removed from the soil through the root of the plant and reach the leaves through the stem in the form of sap, called raw sap.
What are the processes of photosynthesis?Photosynthesis is divided into two basic processes: light reaction and carbon fixation reaction. In the first reaction, two photosystems are involved, which are units formed by pigment molecules. In these photosystems, two regions are observed: the antenna complex and the reaction center.
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Crowding is what type of limiting factor
A. Density-dependent
B. Density-independent
C. None of the above
Answer: A
Explanation:
Duh
[PLEASE ANSWER, WILL GIVE BRAINLIEST IF RIGHT] Write the complementary base pairs for the following DNA sequence: ATTCGAATCGGGGTACTA
Answer:
TAAGCTTAGCCCCATGAT
Explanation:
A - T
T - A
C - G
G - C
Which is one of the six fundamental elements that are found in living organisms?
helium
sodium
oxygen
chlorine
Answer:
Oxygen
Explanation:
E2020
Fundamental elements make the water, air, fire, and earth. Oxygen is one of the six fundamental elements found in living organisms. Thus, option c is correct.
What is the role of oxygen in living organisms?Oxygen is one of the fundamental elements that make the living cell and is essential for aerobic organisms. It is the most crucial element involved in survival, growth, development, reproduction, etc.
It is a vital component of the respiratory, breathing, and the photosynthetic system as it is required as the substrate to produce energy. Oxygen allows the cells to break the sugar into ATP and NADPH molecules.
It is also an important element in circulation to provide energy to the brain and immune cells. It is involved in almost all activities of the living cell.
Therefore, oxygen is the fundamental element for living organisms.
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How many types of nucleotides are in DNA, and how do they differ?
There are four different types of nucleotides in DNA, and they differ from one another by the type of base that is present: adenine (A), thymine (T), guanine (G), and cytosine (C). A base on one of the chains that makes up DNA is chemically bonded to a base on the other chain.
Answer:
Nucleotides in DNA contain four different nitrogenous bases: Thymine, Cytosine, Adenine, or Guanine. ... Pyrimidines: Cytosine and Thymine each have a single six-member ring. Purines: Guanine and Adenine each have a double ring made up of a five-atom ring attached by one side to a six-atom ring.
Neurons are the building blocks of the nervous system. They process and transmit signals. In a neuron, the: 1a) cell membrane 1b)myelin sheath 1c)nucleus -----inside the----- 2a)axon 2b)cell body 2c)dendrite
Answer: 1c) nucleus -> 2b) cell body;
1b) myelin sheath -> 2a) axon
1a) cell membrane -> 2c) dendrite
Explanation: Neurons are the main unit, the cells, of the nervous system. It consists of 3 parts: cell body, dendrites and axon.
Cell body contains nucleus and citoplasm.
An axon extends from the cell body and ends at nerve terminals. Some axons are covered with myelin sheath, because it accelerates the passage of the electrical signal.
A dendrite is an extension of cell body and it is "the one" which receives the message from other neurons. It is formed of cell membrane.
How can we know whether a tree is alive or not?
[tex]\huge\red{\underline{\overline{\tt\:Añswér}}\mid}[/tex]
One of the best ways to determine if a tree or any plant is dead is the tree scratch test. Just beneath the dry, outer layer of bark in a tree's trunk lies the cambium layer of bark. In a living tree, this is green; in a dead tree, it is brown and dry
Follow me!!
2. Emasculation is
(a) removal of stamens
(b) removal of anthers
(c) killing of pollen grains
(d) all of the above.
Answer:
Explanation:
Hello friend,
The answer is b) Removal of anthers
Hope this helps
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How does the ozone layer help maintain ground-level air equality?
Answer:
The ozone layer absorbs a large portion of incoming UV radiation, which keeps ground-level ozone from forming. A higher percentage of UV radiation entering the troposphere would allow a greater amount of ozone to form in the troposphere. Ozone is a pollutant in the troposphere. By regulating the amount of UV radiation that enters the troposphere, the ozone layer also regulates the amount of ozone formation in the troposphere.
Explanation:
edg 2020
The ozone layer absorbs a large portion of incoming UV radiation, which keeps ground-level ozone from forming.
What is ozone layer?The amount of ozone that forms in the troposphere would increase if more UV radiation entered the atmosphere. Pollutants in the troposphere include ozone.
The ozone layer controls the quantity of ozone formation in the troposphere by controlling the amount of UV radiation that reaches it.
Nearly all of the sun's harmful UV light is absorbed by a thin layer of air called the ozone layer in the Earth's atmosphere. "Ozone holes" are terms used frequently to describe regions where the ozone layer is degrading.
Therefore, The ozone layer absorbs a large portion of incoming UV radiation, which keeps ground-level ozone from forming.
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Which of the following is not a characteristic of life?
The ability to obtain and use energy
The ability to respond to the environment or stimuli
The ability to move
The ability to reproduce
Why do fossils support the theory of evolution? Check all that apply.
Fossils show that organisms descend from a common ancestor.
Fossils show that traits change slowly over time.
Fossils show that organisms inherit acquired characteristics.
Fossils show that evolution always occurs very rapidly.
Fossils show extinct species.
Answer:
A
B
E
Explanation:
Answer:
A, B and EAnswers from edge :))
help plzzz 2 more will mark brainlest. Changes to abiotic factors in an environment can impact biotic factors. Climate change may be reducing the amount of ice floating on the world’s oceans. How can this change MOST likely alter the food supply available to marine consumer organisms?
Answer: Here are three reasons if they don't help just tell me.
1. Changes in water temperature can affect the environments where fish, shellfish, and other marine species live. As climate change causes the oceans to become warmer year-round, populations of some species may adapt by shifting toward cooler areas. Oceans are becoming more acidic. 2. Oceans are becoming more acidic. The acidity of seawater is increasing as a direct result of increasing carbon dioxide levels in the air from human activities, like burning fossil fuels. Concentrations of carbon dioxide are higher than in the last 800,000 years. Carbon dioxide dissolves in water, changing seawater chemistry and decreasing pH (making seawater more acidic). The ocean’s increased acidity results in thinner shells and more shellfish die as they become easier for predators to eat. 3. More severe storms and precipitation can pollute coastal waters. Warmer oceans increase the amount of water that evaporates into the air. When more moisture-laden air moves over land or converges into a storm system, it can produce more intense precipitation—for example, heavier rainstorms. Heavy rain in coastal areas can lead to increases in runoff and flooding, impairing water quality as pollutants on land wash into water bodies. Some coastal areas, such as the Gulf of Mexico and the Chesapeake Bay, are already experiencing “dead zones” – areas where water is depleted of oxygen because of pollution from agricultural fertilizers, delivered by runoff. The phrase “dead zone” comes from the lack of life – including fish – in these waters.
Meiosis allows a plant to produce offspring plant which characteristics
Answer:
Meiosis in a parent plant, called a sporophyte, results in the production of spores that are haploid, meaning they have half the genetic information of the parent plant.
Explanation:
Read the following information from a Material Safety Data Sheet (MSDS) about the chemical hydrochloric acid (HCI).
"Skin Contact: In case of contact, immediately flush skin with plenty of water for at least 15 minutes while
removing contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Get medical attention immediately."
Based on this information, which is the most important thing to do right away if a student spills HCI on his shirt?
Answer:
Remove the shirt, and rinse the skin with water
Explanation:
I just got the right answer
For a skin contact with HCl, Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
What is the most important to do after skin contact with HCl?Hydrochloric acid (HCl) is a very corrosive acid, and can be harmful to the skin after a contact.
The following are what should be done after a skin contact with HCl;
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.Thus, for a skin contact with HCl, Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
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