Answer:
one common ancestor
Explanation:
Although Darwin’s theory is often described as the theory of evolution by natural selection, most commentators recognize that common ancestry (the idea that all organisms now alive on earth and all present day fossils trace back to one or a few “original progenitors”) is an important part of the Darwinian picture.
Answer:
Darwin explained that all life came from one common ancestor.
Please help me, thank you.
Answer:
The brain.
Explanation:
has dedicated areas to the processing of stimuli
PLEASE HELP I NEED HELP (Plant related / Project stuff)
Answer:
B, D, A, E, C
Explanation:
1. environmental factors
2. growth
3. adaptation
4. organism
5. genetic factors
The type of energy in starch molecules
Answer:
A chain of six is shown below.) Both plant and animal cells store the energy of glucose in these starch molecules for later use. Starch molecules may be found in chloroplasts. If a plant cell has a lot of extra starch molecules, then the starch gets stored in a separate structure known as a leucoplast.
Hope this helps ❤️
Four groups of organic compounds found in living organisms are proteins carbohydrates lipids and nuclei acids. Which element is a main component in nucleic acids but not in the other three organic compounds?
Answer:
Phosphorus
Explanation:
Nucleic Acids are made up of Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus. Remember that they have a sugar phosphate backbone and their nucleotide bases.
An easy way to remember what all four macromolecules are made up of is
CHO-CHO-CHON-CHONP
Carbohydrates-Lipids-Proteins-Nucleic Acids
Carbon(C)
Hydrogen(H)
Oxygen(O)
Nitrogen(N)
Phosphorus(P)
Contrast primary succession and secondary succession. Give an
example of each.
Answer:
Some examples of primary succession include the formation of a new ecosystem after a volcano, glacier outbursts, or a nuclear explosion. Some examples of secondary succession include succession after fire, harvesting, logging, or abandonment of land or the renewal after a disease outbreak
What would happen if bees did not make it back to their hive? What is the evidence?
(No LINK)
The energy that powers photosynthesis comes from
A. oxygen.
B. water.
C. the sun.
D. chemicals.
Answer:
sun but am not so sure about it
what process causes stem cells to become immune system cells,then some immune system cells to become antibodies?
What is the difference between physical properties and chemical properties of matter?
A. physical properties are recognized when substances react with one another, while chemical properties do not change the composition of matter,
B. physical properties cannot be studied, while chemical properties of matter can be studied
C.physical and chemical properties are the same thing
D. physical properties do not change the composition of matter, while chemical properties can be recognized only when substances react or don't react with one another
I need help with this ASAP
Answer: tissues, organs, organ system
Explanation:
goes from top to bottom
What particles can move through the dialysis
tubing, do you think?
Answer:
Glucose, starch and iodine (potassium iodide) will pass through the membrane of the dialysis tubing.
How is energy produced by respiration stored
Answer:
Explanation:
Cellular respiration converts the chemical energy stored in glucose into chemical energy stored in the ATP molecule. The cells break glucose down into carbon dioxide and water while producing energy that they store in ATP molecules.
Answered by the ONE & Only #QUEEN aka #DRIPPQUEENMO
Hope this helped!!!
What is the main function of leaves?A. Leaves provide support for growth and a place to store food.B. Leaves provide a place for photosynthesis to occur.C. Leaves absorb water and minerals and transport nutrients to the stem.D. Leaves create a barrier that prevents water in the plant's tissues from evaporating
Answer:
B
Explanation:
The main function of a leaf is to produce food for the plant by photosynthesis.
Answer: The correct answer is B. Leaves provide a place for photosynthesis to occur.
Explanation: Confirmed correct.
Taxonomic classification systems for organisms are similar to many other classification
systems. The illustration below compares the National Football League to the currently
recognized taxonomic structure.
?
?
Phylum
?
?
Family
?
Species
Professional Sports Organization
NFL
Conference
Division
Team
Office/Defense
Position
Player
1 According to the diagram, the level labeled Professional Sports Organizations is most
likely which taxonomic classification?
A Class
B Domain
C Kingdom
D Order
Answer:
Domain
Explanation:
“Professional Sports Organization” is listed at the very top, or 2 tiers above Phylum. 2 tiers above Phylum is Domain.
In these chemical equations, each letter represents a different element.
Which equation is balanced?
A. 2EF + 3G2H
3GF + E2H3
B. 2EF3 + 3G2H → GF + E2H3
C. EF + G2H + EH + 2GF
D. 3E2F+G2H3 + 3EH + G2F3
Answer: B. 2EF3 + 3G2H → 6GF + E2H3
Explanation:
In these chemical equations, each letter represents a different element the correct equation is B. 2EF3 + 3G2H → GF + E2H3.
What is the balanced equation?A balanced equation is an equation for a chemical response wherein the wide variety of atoms for every detail withinside the response and the overall fee is the identical for each the reactants and the products. In different words, the mass and the fee are balanced on each aspects of the response.
Here this equation is balance 2EF3 + 3G2H → GF + E2H3 as all are balanced.
Read more about the element:
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3 examples of radioactive dating?
Answer:
Uranium 238
Potassium 40
Rubidium 87
Explanation:
discuss the kidney diseases and disorders
kidney is the necessary thing for each and every one .
Answer:
Explanation: 100 percent u will be percentage
help-- multiple choice!
Biogenic sediment is made of at least 30 percent...
acidic chemicals
alkaline properties
limestone or other rock
skeletal remains
Answer:
The answer is the last one, skeletal remains
Answer: Skeletal remains
Enumerate ways on how humans produce sound:Ex:clapping your hands
a.__________________________
b.__________________________
c.__________________________
d.__________________________
e.__________________________
Answer:
vibrating vocal cords, stomping feet, gargling, whistling, cracking your knuckles
Answer:
•shouting•talking•singing•playing instruments•laughing•yelling•screaming•cryingExplanation:
yAn LNG po Alam ko e:^A group of students wants to study the structures of animals in the desert. One question they should ask is-
How long do the animals live?
Can you buy the animals in pet stores?
How do the animals satisfy their need for water?
How many offspring do the animals have?
From studies and research, I believe the proper question would be:
"How do the animals satisfy their need for water?" or "How long do the animals live?"
Explanation 1:
When studying the desert, asking "Can you buy the animals in pet stores?" is not going to help you find information about the desert because it is not a question to get information about the desert, only information if you just buy it at your local pet shop.
Explanation 2:
Asking "How many offspring do the animals have?" does help us learn about animals, but we are trying to find information on the structure of the desert in which the animals live in. We are not looking for how many children the animals will have because it doesn't fully relate to the question we would be asking.
Side Note: Offsprings mean children.
Hope this helps!
~Hocus Pocus
Which of the following is used as biochemical evidence for evolution? *
a. Similarities in bone structures
b. Similarities in DNA
c. Fossil record
d. Similarities in eye function
10. Name the pigments present in plants which can absorb solar energy.
11. Name the two stages of photosynthesis.
12. Why is nutrition necessary for an organism?
13. Which pancreatic enzyme is effective in digesting proteins?
14. Which enzyme present in saliva breaks down starch?
15. What is the role of acid in our stomach?
16. What is the role of saliva in the digestion of food?
17 State the function of digestive enzymes.
18. Where does digestion of fat take place in our body?
19. What is the mode of nutrition found in human beings?
Answer:
10. chlorophyll
11. There are two main stages of photosynthesis: the light-dependent reactions and the Calvin cycle.
12. Nutrition is necessary for the growth of new cells and the replacement or repair of worn-out cells. Nutrition gives energy for different metabolic processes in the body. Nutrition is required to produce resistance against different diseases.
13. trypsin
14. salivary amylase
15. Hydrochloric acid helps your body to break down, digest, and absorb nutrients such as protein. The hydrochloric acid found in the stomach facilitates digestion by disintegrating complex large food molecules into simpler molecules. The acid activates the pepsinogen enzyme required to digest proteins.
16. Saliva, the watery liquid produced by glands located under the tongue, is an essential component of the digestive process. Saliva is 98% water, so it moistens the mouth and helps compact food into softened particles for easier swallowing.
17. Digestive enzymes play a key role in breaking down the food you eat. These proteins speed up chemical reactions that turn nutrients into substances that your digestive tract can absorb. Your saliva has digestive enzymes in it. Some of your organs, including your pancreas, gallbladder, and liver, also release them.
18. small intestine
19. heterotrophic
hope this answer helps you...
please mark as brainliest...thank you!
Why does our sun appear to be bigger than all of the other stars?
A.The sun is much hotter than other stars.
B.The sun is the closest star to the earth.
C.The sun's color is yellow which is the brightest, most visible star.
D.As light travels from the other stars, it gets reflected.
Babies with very low or very high birth weight are less likely to survive. The graph shows the percentage of babies born at different weights.
A graph entitled Percentage of Babies born at Different Weights has weight in pounds on the horizontal axis, and percentage on the vertical axis. A small percentage of babies are born at the low and higher birth weights, and a greater amount are around 7 to 8 pounds.
Which statement is a valid claim that could be made using the data in the graph?
Directional selection is occurring because the graph favors an extreme.
Stabilizing selection is occurring because the average is favored.
Disruptive selection is occurring because the two extremes are favored.
Biodiversity variation is occurring because there is an increase in trait variation.
Answer:
C
Explanation:
Otherwise people wouldn’t have differences
Answer:
C!!! :))
Explanation:
I tookt the test and got it right.
The amount of water circulating around the planet is always
A. fixed (staying the same.)
B. decreasing.
C. increasing.
Answer:
The answer would be fixed.
Explanation:
According to the law of conservation of energy, energy cannot be created or destroyed. I can safely assume it is the same with the flow of water on the Earth’s surface. Also, according to what is known about the water cycle, it is impossible for water to simply disappear from the face of the Earth.
Let me know if I am correct! :>
Answer:
A. fixed (staying the same.)
Explanation:
The amount of water circulating around the planet is always fixed (staying the same.)
In protein synthesis, how many nitrogenous bases code for a single amino acid?
one
two
three
four
Answer:
C
Explanation:
EDGE 2022
If a scientist found a beaker of a substance in a lab, which of the following would the scientist most likely use to identify the substance?
A. taste, smell, touch and sound
B. Melting point, ability to burn, boiling point and density
C. Poking, prodding, pouring and partaking
D. Research on Wikipedia
Some suggestions for measures that the United States can implement to avoid contributing to greenhouse gases!
Answer:
1. Increase the use of green renewable energies
2. Promote recycling
3. Controlling industrial greenhouse CO2 emissions from the transportation sector
4. encourage the use of non-polluting means of transport (e.g., walking over road transport)
Explanation:
First, renewable energies are energy sources generated naturally without the use of fossil fuels (e.g., solar energy, wind energy, geothermal energy, etc). Thus, these green energies can replace the use of fossil fuels in a sustainable manner, and therefore reduce the emission of greenhouse gases such as carbon dioxide (CO2). Second, recycling can drastically reduce the amount of energy required to synthesize new products and reduces the need for new materials, being thus also useful to reduce CO2 emissions that result from extracting virgin materials. Third, the industries from the transportation sector produce the largest part of greenhouse gas emissions, thereby encourage the use of green energies in this area may represent a good alternative to reduce CO2 emissions. Finally, it is well known that urban transport generates about 40% of all CO2 generated by road transport, and thereby invest in green transport systems such as bicycling and walking may also represent a useful strategy to reduce CO2 emissions.
Which is an example of a scientific theory?
A. On average, larger mammals sleep longer than smaller mammals.
B. If a plant receives pure water, then it will grow more than one that
receives salt water.
C. Organisms evolve over time due to changes in heritable physical
characteristics.
D. If a person takes at least one vitamin per day, then it will reduce a
person's level of tiredness.
HELP PLEASE!
Answer: Organisms evolve over time due to changes in heritable physical characteristics.
Explanation:
There are a few things to look for when distinguishing between a nonscientific theory and a valid scientific theory. One thing to consider is if there are any published literature, experimental studies, and data available to support the theory. Most scientific theories have data and information tied to them. Another factor to examine is who has developed the theory. A scientific theory will always be supported by evidence with large quantities of data and testing. An example of a scientific theory is the theory of evolution, which observes changes in heritable physical traits over time in an organism. A hypothesis might be that all organisms evolve at the same rate.
Organisms evolve over time due to changes in heritable physical characteristics is an example of a scientific theory known as evolution. Thus, option C is correct.
What is evolution?Evolution is the scientific theory that explains that "a change in the characteristics of biological populations over next generations.
According to scientists RNA is the first existing molecule on earth that replicate by itself and the process of evolution lead to advanced forms of life.
These characteristics are easily trasfered from one generation to other generation.
Therefore, Organisms evolve over time due to changes in heritable physical characteristics is an example of a scientific theory known as evolution. Thus, option C is correct.
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In a sample of double stranded dna if 27% of the nitrogenous bases are thymine what percentage of nitrogenous bases are cytosine
Answer:
23%
Explanation:
According to Chargaff's law A = T and G = C
T = 27%
A = 27%
27 + 27 = 54
100 - 54 = 46
46/2= 23
So 23%