Answer:
its a
Explanation:
a pioneer plant is the first to sprout after something like a forest fire
Efforts to reduce pollution began occurring later in the century. If pollution near factories was reduced, what would happen to the color of the moths? Explain your answer.This would happen because
Answer:
moths would begin becoming lighter as the pollution is reduced
Explanation:
The color of the moths would begin becoming lighter as the pollution is reduced. This is because during the time of high amounts of pollution industrial melanism takes place and the moth's pigmentation becomes a darker tone. This is so that the moths are able to blend in better with its surroundings and survive. Pollution causes sulphur dioxide gas and dark soot deposits which have a greyish dark tone, thats why moths pigmentation turns darker. With pollution reduced moths need a lighter colored pigment to blend into lighter colored objects such as trees and leaves.
The color of the Moths will become lighter as a result of this due to the effect
pollution has on its color.
Industries and factories make use of fuel and when it is burned in generating
sets and other equipment it produces the compound known as Nitrogen
oxide.
The Nitrogen oxide has a brownish color which goes into the atmosphere
where the moths fly in thereby contact with the gas darkens the color to
shades of brown. A reduction in the discharge of the gas will lead to it
becoming lighter.
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what is the skeletal system
Answer:
Hellooo
Skeletal system is the framework which gives body shape. It consists mainly of bones.
Explanation:
thanks...hope it helps
11.
Which describes resolution?
A. how many lenses a microscope uses
B. how sharp an image is
C. how much light is needed to see an image
D. how big an image can be
Answer:
DDDDDDDDDDDDDD
Explanation:
Question 7 (1 point)
Which structure in the illustration contains the cell's genetic information?
Answer:
its the nucleus
Explanation:
Answer:
B
Explanation:
The chromatin in the nucleus of the cell contains DNA
What is the structural formula for unsaturated fatty acid?
HELP!!!!!!! Which nutrients are most essential for the survival of plants?
A.
carbon dioxide and water
B.
water and sugar
C.
sugar and oxygen
D.
oxygen and carbon dioxide
Answer:
I think option A
but not confirm
Answer:
A
Explanation:
That is what it is made up of and what it has to have.
(1 point) Blood type AB is the universal donor that can donate blood to every other blood type.
True or False?
Answer:
Group AB can donate to other AB's but can receive from all others. Group B can donate red blood cells to B's and AB's.
Explanation:
Animals in a moist and humid environment are specifically adapted to that habitat. What contributed to the selection of these adaptations?
Answer:
Over time, adaptations offer survival advantages toward moist and humid environments. The animals with these traits survive and reproduce passing on the traits.
Explanation:
Honestly I am not sure but tell me if i helped
Answer:some adaptations offer survival advantages
Explanation:
i had the same question
Use a sequence of at least four events to describe some of the ways
that water moves into, through, and then out of the atmosphere.
Please help
Explanation:
together evaporation transpiration sublimation plus volcanally emissions for almost all the water evaporate in the atmosphere that isn't inserted in human activities
In 2006, an Ethiopian researcher announced the discovery of well-preserved 3.3 million-year-old fossil of a young female hominid. Refer to Figure (F) below. Considering the Hominid trend of evolution, choose which skull would most likely be that most primitive of the three.
Answer:
Skull three
Explanation:
the backlining is in more, and the jaw moves out more, resembeling that of a more gorilla like creature
It sounds like the description is referring to a hominid with a more pronounced facial structure, similar to that of a gorilla. This may indicate a more primitive stage of hominid evolution, as earlier hominids had more pronounced facial features and a more protruding jaw than later, more advanced hominids.
What is the basic evolutionary changes in the group mentioned ?As hominids evolved over time, their facial features became more refined, and their jaw became less protruding as they adapted to a diet that relied less on tough, fibrous vegetation and more on softer, cooked foods. This adaptation allowed for the development of a larger braincase and a more upright posture, both of which are hallmarks of later hominids such as Homo erectus and Homo sapiens.
It's worth noting that the evolution of hominids is a complex and ongoing area of research, and new discoveries and interpretations of existing evidence may change our understanding of the evolutionary timeline and the characteristics of different hominid species.
Over the course of hominid evolution, several important changes occurred that distinguish hominids from other primates. One of the earliest changes was the development of bipedalism, or the ability to walk on two legs. Bipedalism allowed hominids to free their hands for tool use and other tasks, and also facilitated the long-distance travel needed to explore new environments.
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A mutation happens in the ______.
How efficient are the normal commercial solar cells?
FOR 70 POINTS
How much has climate change due to pollution caused the ocean to rise in the 20th century?
a.
0.5-2 inches
c.
2 feet
b.
4-8 inches
d.
6 feet
also could u do this
Figure 27-1
Arrow B in Figure 27-1 represents ____.
a.
reflected sunlight
c.
carbon dioxide in the atmosphere
b.
chlorofluorocarbons
d.
solar radiation
Answer:
A
Explanation:
What
type of mutation causes sickle cell anemia?
Answer:
Sickle cell anemia is the result of a point mutation in the hemoglobin gene. Sickle cell hemoglobin (HbS) causes red blood cells to form a sickle shape. People who inherit one sickle cell gene and one normal gene have sickle cell trait.
Explanation:
Sickle cell anemia is the result of a point mutation in the hemoglobin gene. Sickle cell hemoglobin (HbS) causes red blood cells to form a sickle shape. People who inherit one sickle cell gene and one normal gene have sickle cell trait.
Answer: The correct answer is "missense mutation"
Explanation:
I took the test
precautions for soil sampling
Answer:
Explanation:
When collecting samples, avoid small areas where the soil conditions are obviously different from those in the rest of the field—for example, wet spots, old manure and urine spots, places where wood piles have been burned, severely eroded areas, old building sites, fencerows, spoil banks, and burn-row areas.
The Earth ________ is a group of parts that include air, water, land, and life
Answer:
The Earth Cycle
Answer:
biosphere
Explanation:
The biosphere conists of all living things and it includes air , water , land and life.
Explain a wedge and give 3 examples.
Answer: A wedge is basically an incline plane. Often portable used for many purposes
Explanation: A wedge is a double inclined plane such that the two sloping surfaces taper to form either a sharp edge or a pointed edge. For example, a knife, an axe etc.
In a few cases, the number of inclined planes used can be more than two as well. In such cases, the sloping surfaces generally taper to form either a very sharp or a pointed edge to split or pierce materials. For example, pins, nails etc.
The front end of a boat is shaped like a wedge so that it can easily cut across the flowing water.
The wedge works on the principle of an inclined plane.
The Door Stop Is an example of one,
A Knife is a very thin wedge because it slices through objects
Chisels are used to dig into stone and chip away at it to create sculptures.
Hope this helps Have a awesome day❤️Help pls!!!
The strength of the force of
gravity between two objects is determined by which of the following factors? Select all that apply.
A. the masses of the objects
B. the distance between the objects
C. the volumes of the objects
D. the surface area of the objects
Sam has a mutation in a gene that affects the function of a transfer RNA (tRNA). Human cells have 20 different types of tRNAs, and each adds a different amino acid to growing peptide chains, which form proteins. Based on what you know so far, would you expect this mutation to affect all proteins produced in Sam's cells? Explain your reasoning.
Answer:
No
Explanation:
The mutation is not expected to affect all the proteins produced in Sam's cells because each protein has a different structure and functions. Proteins are polymers of amino acids and the component amino acid for each protein diffesr. Hence only the proteins whose constituent amino acids include the amino acid being carried by the mutated tRNA would be affected. Others whose constituent amino acids do not include the amino acid being carried by the mutated tRNA would function normally.
Type of solution involved in osmosis where the concentration of water is higher on the outside of the cell than on the inside.
Provide a scientific explanation describing whether plants use the by-product of cellular respiration for photosynthesis, and determine the complementary relationship between photosynthesis and cellular respiration in terms of both matter and energy conversions. Claim:
Evidence:
Reasoning:
Rebuttal:
Answer:
Explanation:The process of photosynthesis converts light energy into stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen. ... Cellular respiration releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment. Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch.
The process of photosynthesis converts light energy into stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen. ... Cellular respiration releases the energy needed to maintain body temperature despite ongoing energy transfer to the surrounding environment. Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch.
which is true in a covalent bond
Answer: A chemical bond that involves electron pairs being shared between atoms is called a covalent bond.
Describe how ions water and sugar are obtained and transported through plants
write a summary about the cell theory
Answer:
Over the next two centuries after the discoveries of Hooke and Leeuwenhoek, biologists found cells everywhere. Biologists in the early part of the 19th century suggested that all living things were made of cells, but the role of cells as the primary building block of life was not discovered until 1839 when two German scientists, Theodor Schwann, a zoologist, and Matthias Jakob Schleiden, a botanist, suggested that cells were the basic unit of structure and function of all living things. Later, in 1858, the German doctor Rudolf Virchow observed that cells divide to produce more cells. He proposed that all cells arise only from other cells. The collective observations of all three scientists form the Cell Theory, which states that:
all organisms are made up of one or more cells,
all the life functions of an organism occur within cells,
all cells come from preexisting cells.
Though no one point of the Cell Theory is more important than another, the theory clearly states that the functions necessary for life occur in the cell. Findings since the time of the original Cell Theory have enabled scientists to "modernize" the theory, including points related to biochemistry and molecular biology. The modern version of the Cell Theory includes:
all known living things are made up of one or more cells,
all living cells arise from pre-existing cells by division,
the cell is the fundamental unit of structure and function in all living organisms,
the activity of an organism depends on the total activity of independent cells,
energy flow (metabolism and biochemistry) occurs within cells,
cells contain hereditary information (DNA) which is passed from cell to cell during cell division,
all cells are basically the same in chemical composition in organisms of similar species.
The Cell Theory is one of the main principles of biology. The points of the theory have been found to be true for all life. As with any scientific theory, the Cell Theory is based on observations that over many years upheld the basic conclusions of Schwann’s 1839 paper. However, one of Schwann’s original conclusions stated that cells formed in a similar way to crystals. This observation, which refers to spontaneous generation of life, was discounted when Virchow proposed that all cells arise only from other cells. The Cell Theory has withstood intense examination of cells by modern powerful microscopes and other instruments. Scientists continue to use new techniques and equipment to look into cells to discover additional explanations for how they work.
Explanation:
Hope I helped!
According to the unified cell theory, all living things are made up of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Later, Rudolf Virchow made significant contributions to this theory.
Why is it important to study cell theory?Cell theory is critical for understanding biology because cells are the foundation of all life. We can have unicellular organisms such as bacteria and yeasts. cell division, the division of a cell from one to two to four, is the foundation of all living things' growth and development.According to the unified cell theory, all living things are made up of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Later, Rudolf Virchow made significant contributions to this theory.
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Which of the following are characteristics of life? (Choose all that apply)
1)responds to stimuli
2)regulates internal processes
3)grows and develops
3)provides energy
Answer:
All of them are characteristics of life.
The following are the characteristics of life:
1) responds to stimuli.
2) regulates internal processes.
3) grows and develops.
4) provides energy.
What do you mean by life?Life is the character of organisms that distinguish them from other physical matters. The organisms with life can perform all biological processes.
The main characteristics that make them distinguish are they can respond to any stimuli and can grow and reproduce and transfer energy and regulate internal processes. The living creatures are plants, animals, algae, protists, and fungi.
Thus, the correct options regarding life are:
1) responds to stimuli.
2) regulates internal processes.
3) grows and develops.
4) provides energy.
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Which of the following best explains why the Sun appears to move across the sky every day?
Group of answer choices
The Sun rotates on its axis
Earth rotates on its axis
The sun orbits around Earth
Earth orbits around the Sun
46 points if you can answer these...
1. What cell process occurs in the mitochondria?
2. Why do some cells have MORE mitochondria? Give an example.
3. What simple sugar is broken down in the mitochondria?
4. What simple sugar is broken down in the mitochondria?
5. Where does the energy in glucose come from ORIGINALLY?
6. Where is this energy stored in glucose?
7. Why is cellular respiration an aerobic process?
8. Name two other organelles besides the mitochondria that contain DNA and have a double membrane.
9. Describe the outer membrane of the mitochondria.
10. What energy is released when the chemical bonds of glucose are broken?
11. Why is the inner mitochondrial membrane folded?
12. What are the folds called?
Answer the prelab questions below with reference to the attached class slides.
1. What is a mutation? (A. change of DNA / B. copy of DNA / C. passing of DNA / D. all listed)
2. Describe the info flow of transcription. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D.
DNA --> protein)
3. Describe the info flow of translation. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
4. Describe the info flow of expression. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D. DNA
--> protein)
5. Describe the info flow of replication. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
Answer:
1 . mutation is in a change in a DNA sequence nutrition can visit of DNA copying mistake made during cell division exposure to radiation exposure to Chemicals called motor Jeans Aur infection by viruses
does variation allow for natural selection to take place?
Answer: HOPE THIS HELPS!
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
What happens at the edge of plates?
Answer:
Most earthquakes occur along the edge of the oceanic and continental plates.
Explanation:
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