does anyone have 4.01 for science 8th grade pls help me
How many basic economic questions must every courtry answer?
O one
O two
O three
O four
Three
Have a nice day
Answer:
Explanation:
مرحبًا ، أود أن أحاول مساعدتك في عملك المدرسي. إذا كنت تستطيع أن تشرح أكثر فأنا أقدر ذلك.
Which of these BEST desnibes the structural difference between the DNA of bactena and the DNA of humans?
Human DNA is much more complex in structure
Bacteria do not have DNA so there is nothing to come
ADNA made of the same components so there would be no difference
Bacteria DNA com 3 toge buses while the human DNA contains
Answer:
Human DNA is much more complex in structure
The initial cross of two true-breeding individuals is known as the:
A. Parental generation
B. Primary generation
C. F1 generation
D. F2 generation
Answer:
monohybrid cross
Fertilization between two true-breeding parents that differ in only one characteristic is called a monohybrid cross. For a monohybrid cross of two true-breeding parents, each parent contributes one type of allele resulting in all of the offspring with the same genotype.
The initial cross of two true-breeding individuals is known as the monohybrid cross.
The Parental generation describe in monohybrid cross.
What is monohybrid crossing?When fertilization occur between two true-breeding parents that differ in only one characteristic is called a monohybrid cross.For a monohybrid cross of two true-breeding parents, each parent contributes one type of allele resulting in all of the offspring with the same genotype.The resulting offspring is called monohybrid.Learn about monohybrid cross,
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Students are studying ecosystems and the relationships between abiotic and biotic factors in an environment. The students find that the ecosystem in an area has changed over time. They wonder if a change in an abiotic or biotic factor can cause a change in the ecosystem forming a new ecosystem. Which three statements provide evidence that a change in abiotic or biotic factors can cause a new ecosystem to form?
Answer:
C, D, and E
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
I need help plz !!!!!!!!
Answer:
ur correct its measured in A
Answer:
I believe its A for Amperes
Explanation:
How do viruses disrupt homeostasis in their host?
Answer:
Hence, during infection in vivo, a noncytopathic virus may turn off the "differentiation" or "luxury" function of a cell while not killing that cell (loss of vital function). This is turn can disrupt homeostasis and cause disease
hope it helps you
What are 5 different kinds of proteins made by ribosomes?
Investigator Campbell is in charge of the forensics lab. One of the analysts in the lab ended up with contaminated evidence from the scene of an explosion. Looking through their work area, she sees they have a very small table next to a sink with small nylon bags stored in tight rows at room temperature. What would she advise the analyst to change about their evidence system? The evidence needs to be refrigerated quickly between analyses. The evidence can't be stored in nylon bags at all. The bags can't be kept so close together. They can’t be near the sink—it’s too humid.
Answer:
The bags can't be kept so close together.
Explanation:
Given the properties of minerals, why can hydrochloric not be a mineral?
Answer:
Quartz
Explanation:
Quartz does not react with hydrochloric acid.
Its is pink in color and has anon metallic luster. It has a specific gravity of 2.65. Quartz is continuous framework of SiO4 , with each oxygen being shared with two tetrahedra, giving an overall chemical formula of SiO2.
How did you determine if your predator/prey relationship was stable? What was your dependent variable? What type of measurements or observations need to be recorded during your investigation? What was your control? How will you reduce errors? What type of calculations need to be made?
Answer:
However, if the size of a prey population gets tooo small, many of the predators may not habe enough food to eat and will die... S predator-prey population size relationship that results in both populations survivng over time, despite flucuations in the size of each one over several generatisn as described stable
Explanation:
a crow vending machine is associated with what type of learning
Sorry you've waited so long for an answer! I belive the type of learning associated with a crow vending machine is trial and error! So sorry once again!
Which of the following can we get from plant stems? A. flax seed B.cotton C.carrots D.hay
Answer:
Hay
Explanation:
I got 100% on the quiz, hay it is!
The product we can get from the plant stems are hey. Thus, option D is correct.
What are stems?Stems are considered as very important part of the plant and this is long in structure and green in color and it consist of branches, leaves and flower is also grow on the branches that has been attached to the stem.
Leaf has been considered as very important part of the plant and it has contained the chlorophyll due to which the color of the leaf is green. It has a flattened green structure which has been grown outwards from the stem of a plant which has vascular.
Leaf has been known as the basic site of the process of photosynthesis and it means that the process of the photosynthesis generally occurs in the leaf. The main function of the leaf has to produce food material for plants which will help plants to get nourished.
Therefore, The product we can get from the plant stems are hey. Thus, option D is correct.
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what are the symbiotic relationship between maple tree and birch tree plss help rn
Answer: A mutualistic relationship between the mycorrhizae and the roots of the trees. ... What is the difference between Pine Trees and Maple Trees? ... or wherever else Birch trees are common (they have a symbiotic relationship with birch trees).
Explanation:
A bacterium can reproduce quickly by splitting into two cells. Which of these best describes the genetic make-up of the resulting two cells?
a/They have the same amount of genetic material and are identical.
b/They have the same amount of genetic material but are not identical.
c/They have half the amount of genetic material, which grows in size.
d/They have half the amount of genetic material, but then it duplicates itself.
Answer:
A . They Have The Same Amount Of Genetic Material And Are Identical
Explanation:
How is local weather influenced by global patterns of atmospheric movement?
Answer: A mountain range in the path of prevailing winds can influence where precipitation falls. When humid winds blow from the ocean toward coastal mountains, they are forced to rise. The rising air cools and its water vapor condenses, forming clouds.
Water absorbed by the roots moves through the stem and enters the leaves. Most of this water is lost in transpiration. Explain how the internal structure of leaves results in the loss of large quantities of water in transpiration
Which best describes a controversial issue associated with the use of genetically modified crops?
A. The use of genetically modified crops to increase potential yield
B. The short-term use of genetically modified crops in famine-stricken countries
C. The development of genetically modified crops which are resistant to herbicides
D. The long-term effects which may arise from the use of genetically modified crops
Answer:
It's D
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The long-term effects which may arise from the use of genetically modified crops is a controversial issue associated with the use of GM crops. They are reported to be having serious health impacts.
What is genetically modified crops ?Some crops are designed using genetic techniques to insert them some desired characteristics such as microbial resistant, high yield, taste, bigger size etc. Genetic engineering techniques such as CRISPER genes are common today to modify the crops in order to meet the desired features.
Genetically modifying food is a relatively new process, thus it is unclear how it will affect food safety in the long run. Human health is a major concern with regard to the drawbacks. While study is ongoing, scientists have not yet demonstrated that eating GMO foods is unhealthy.
Allergic reactions, genetic changes, devastations of good insects and their diversity etc. are the drawbacks of GM crops. Some even leads to cancer. Hence, option A is correct.
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STRUCTURE OF DNA: Where is DNA found?
DNA is found inside every living cell! Label this diagram to show exactly where:
The majority of DNA is found in the cell nucleus (where it is referred to as nuclear DNA), but a minor portion is also present in the mitochondria, where it is referred to as mitochondrial DNA. Mitochondria are organelles in cells that transform food energy into a form that cells can utilize.
What is DNA composed of?Nucleotides are the chemical units that make up DNA. Three components make up these building blocks: a phosphate group, a sugar group, and one of four different nitrogen bases.
Chains of nucleotides with alternating phosphate and sugar groups are joined to form a strand of DNA.
A single molecule of deoxyribonucleic acid and a protein make up each chromosome (DNA).
DNA and proteins arranged into genes make up a chromosome. 23 pairs of chromosomes are typically present in each cell.
Therefore, DNA is found inside nucleus of every living cell!
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3. Which feature is commonly formed
at a plate boundary where oceanic
crust converges with continental crust?
(1) a mid ocean ridge (2) an ocean trench (3) a transform fault (4) new oceanic crust
Answer:
2) an ocean trench
Explanation:
Ocean trench is a commonly formed at a plate boundary where oceanic crust converges with continental crust.
What is Ocean Trench?Long, narrow depressions on the seafloor are known as ocean trenches. These chasms are among the deepest natural places on Earth and the deepest portions of the ocean.
Every ocean basin on the planet has ocean trenches, but the deepest ones encircle the Pacific Ocean as part of the so-called "Ring of Fire," which is also home to active volcanoes and earthquake-prone regions. Tectonic activity, which refers to the movement of the Earth's lithosphere, is what causes ocean trenches.
Ocean trenches in particular are a characteristic of convergent plate borders, which occur where two or more tectonic plates collide. In a process known as subduction, dense lithosphere melts or slides beneath less dense lithosphere along numerous convergent plate borders, forming a trench.
Therefore, Ocean trench is a commonly formed at a plate boundary where oceanic crust converges with continental crust.
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Why are lab safety rules important? I’m currently doing an essay with minimum of 250 words. You don’t really have to do that but can y’all give me some facts/ideas to put in my essay? Thank you and good day <3
Answer:
Explanation:
I know that Lab Safety Rules are important because laboratories have a wide array of safety hazards, which is why it is so important to understand the important of lab safety. By becoming familiar with the laboratory you're working in and always following proper safety procedures, you can help to prevent or eliminate hazards.
based on what you have just read why is studying atoms and their parts and particles helpful to people
Answer:
Studying atoms helps people by providing research to common problems found in our environment, universe, and ourselves. Such as cleaning up oil spills, identification of atoms in our universe, etc.
Explanation:
2.
A cell detects that it had depleted its stores of Ca2+ Which of the following would not help the cell regain homeostasis?
(A) O Increasing the number of chloride ion channels on the cell membrane
(B) O Releasing a hormone that prompts the breakdown of bone to release calcium
(CO Signaling the intestine to absorb more calcium from food
(D) O Decreasing processes which require calcium
Come Back to This I'm guessing Remove My Choice
Answer:
(A) O Increasing the number of chloride ion channels on the cell membrane
Explanation:
This is because options B, C and D require processes which make calcium available for the cell and homeostasis is the process of returning the cell back into its stable condition.
All other options except A do not help the cell return to its stable condition.
So, the answer is A
The dopamine system involved in Parkinson's disease is located in which of the following areas of the brain?
Answer:
Dopamine is a substance produced in the brain and is responsible for controlling our movements. The cells that produce dopamine are located in an area known as the brainstem, from where dopamine is then secreted into the basal ganglia, an area of the brain that plays an important function in regulating our movements.
Explanation:
Animals can either be unicellular or multicellular depending on the species
True. Things such as a sponge, placozoa and stuff can be unicellular. But other bigger animals are multicellular, like a whale or dog.
Answer:true
Explanation:
Which corrections should be made to describe
photosynthesis accurately? Check all that apply.
O (1) Light energy and chemical energy should be
switched.
(1) Chemical energy should be changed to
mechanical energy.
(3) Plants that contain chlorophyll should not be
included.
0 (3) Oxygen should be changed to carbon dioxide.
0 (4) Animals and plants should be switched.
Answer:
1) Light energy and chemical energy should be switched
3) Plants that contain chlorophyll should not be included
5) Animals and plants should be switch
Explanation:
Photosynthesis is a biological process through which green plants make their own food in the presence of sunlight. So, photosynthesis is a process in which Light energy is converted to chemical energy.
Plants carrying chlorophyll should not be included as their primary source is light, carbon dioxide and water.
During photosynthesis, plants make oxygen and releases it into atmosphere which is further utilized by animals or humans for metabolic activities so, photosynthesis allows the flow of energy from plants to animals.
Hence, the correct answers are " 1, 3, and 5."
Answer:
1, 3, 5 ez as that
Explanation:
What are alternative resources
Answer:
Alternative energy refers to energy sources other than fossil fuels (such as coal, petroleum, and diesel) and includes all renewable and nuclear energy sources.
Explanation:
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1. Which statement is NOT true regarding the above picture?
A. Cave fish live in the dark, and therefore no longer needed the adaptational advantage of needing eyes
B. It is not possible that these two fish came from a common ancestor.
C. Cave fish developed different adaptations from minnows because of their surrounding environment, like sensitivity to vibrations.
D. Minnows would not be well adapted for extremely dark environments.
2. What type of evidence of evolution does the above picture represent, when you notice the presence and lack of eyes in the minnow & cave fish?
A. Eyes must be a Homologous structure
B. Eyes must be an analogous structure
C. Eyes must represent biochemical evidence
D. Eyes must be a vestigial structure
ANSWER
number 1. B
number 2. A
im not 100% sure so please think about it before answering.
The presence and lack of eyes in the minnow & cave fish shows that eyes must be a Homologous structure.
Evolution is the stepwise process by which contemporary organisms emerged from earlier ancestors. We must note that organisms that evolved from the same ancestor must share some structural and functional similarities. Hence, it is not possible that these two fish came from a common ancestor.
A homologous structure is a structure that is present in two species that come from a common ancestor. Hence, the presence and lack of eyes in the minnow & cave fish shows that eyes must be a Homologous structure.
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Say you were traveling up a mountain, where would you have the most trouble breathing? At the bottom of the mountain or at the top of the mountain? Describe why.
Answer:
top of the mountain
Explanation:
the air pressure on top of a mountain is really bad so it is harder to breathe
are the anthers in this flower located above or below the stigma
Answer:
Above
Explanation:
The anthers are always above the stigma.
Anthers in this flower located always above the stigma are the anthers, the primary reproductive component of the flower, anthers are where male gametes are dispersed.
What are the anthers in flowers?The pistil refers to all of the female components. The stigma, which is a sticky surface open to pollen, is found at the top of the pistil.
A pollen-containing unit is another name for it, the angiosperms' stamens contain it. A filament or stalk, which resembles a thread, supports the object.
Therefore, anthers are where male gametes are dispersed. The top anther and the stalk or filament that supports it are what are known as the masculine components of the flower, or stamens.
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