Answer:
A
Explanation:
During respiration organisms use up oxygen given off by plants and give off carbon dioxide as by product
Why do the cells used for reproduction only have half (½) of the DNA that other cells have?
Answer:
Because each chromosome has a pair, these cells are called "diploid" cells. On the other hand, human sperm and egg cells have only 23 chromosomes, or half the chromosomes of a diploid cell.
Explanation:
HELP ASAP
Joe is experimenting to determine which liquid will cause bean plants to grow faster. He watered the plants with equal amounts of liquid and measured their height every other day. The plants are in the same pots with different soils and placed in the same location. Will Joe be able to obtain reliable data to write a supported conclusion?
Yes, because he is only observing the height of the plant.
Yes, because he is consistent with watering the plants.
No, because he used different soils.
No, because he uses only one type of plant.
Answer:
No, because he used different soils.
Explanation:
which liquid will cause bean plants to grow faster.
He watered the plants with equal amounts of liquid and measured their height every other day.
The plants are in the same pots with different soils and placed in the same location.
Ok so last statement made the experiment wrong.
As a constant variable the soil should be the same for all plants only the liquid should change
If water was removed from a plant's environment what would happen to the plant's glucose production?
Answer:
It would cease
Explanation:
If water is removed from a plant's environment, the plant's glucose product will cease. This implies that the plant will stop producing glucose.
Water is an essential ingredient for the production of glucose by plants. During the process of photosynthesis, green plants manufactures their food in the presence of sunlight. The water combines with carbon dioxide to produce glucose oxygen gas using sunlight energy. Without water, this reaction will not be possible to take place. Therefore, the production of glucose stops when there is no water.PLEASE HURRY I AM TIMED!!!
Are aliens real? Explain your answer.
Answer:
No, not according to any sciences (unless you mean aliens as in immigrants)
Explanation:
There is no way that we are the only living thing in the entire world. There has to be another species out there. They might be wondering if there is another living thing out in space too.
Describe the process of absolute dating as it relates to igneous rock and the fossil record.
Answer:
Radiometric dating. Geologists use radiometric dating to estimate how long ago rocks formed, and to infer the ages of fossils contained within those rocks. ... When molten rock cools, forming what are called igneous rocks, radioactive atoms are trapped inside. Afterwards, they decay at a predictable rate.
How could one determine if two
unidentified organisms share a common
ancestor?
Answer:
Evolutionists determine that two organisms have a common ancestor is by looking at fossil evidence in different rock layers using the law of Superposition (Oldest layers are on the bottom, newest are on the top) and compare the skulls or other bones to each other in order of oldest to newest (or newest to oldest). Another way to determine this is to examine the amount of DNA a certain species shares with another species. An example of this would be that Humans share roughly 90% of our DNA with chimpanzees or the other Great Apes.
Explanation:
DNA
They can look at the DNA it's the most common one.
There are 4 pieces of evolution and they are
Fossils , Geography , Embryos / DNA , Anatomy
Fossils: Physical remains of species , Determine age, location, environment
Deeper layers = older
Geography: Proves species share common ancestors, depending on where
they live
DNA: BEST evidence because it’s the MOST ACCURATE
Similarities in the early stages of development
Similarities in DNA
More similarities = closely related
More differences = not related
Anatomy: Compare body parts of different species to see how they evolved
3 different structures:
Homologous (same structure, different function)
Analogous (similar structure, different organisms)
Vestigial (body parts that no longer serve a purpose)
All of that are in evolution
Hope it helped! ( Gave u my biology notes :D)
Which best explains the role of plants in the nitrogen cycle?
Answer:
Assimilation
Explanation:
This is how plants get nitrogen. They absorb nitrates from the soil into their roots. Then the nitrogen gets used in amino acids, nucleic acids, and chlorophyll. ... When a plant or animal dies, decomposers like fungi and bacteria turn the nitrogen back into ammonium so it can reenter the nitrogen cycle.
How can agriculture cause soil pollution?
Agriculture pollution
Explanation:
Agriculture is a main source of pollution in lake water. chemical and fertilzer
Answer:
Pesticides and fertilizers used on crops fed to animals are a major contributor to land pollution
Explanation:
hope this helps :)
Molecules of DNA are composed of long chains of?
two long polynucleotide chains
A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand. Hydrogen bonds between the base portions of the nucleotides hold the two chains together
Molecules of DNA are composed of long chains of nucleotides.
What are nucleotides?Nucleotides are the building blocks of DNA and RNA adenine (A), thymine (T), guanosine (G), and Cytosine (C. In RNA, uracil (U) is present instead of thymine.
The pentose sugar is the ribose sugar in RNA and deoxyribose sugar in DNA. In deoxyribose sugar, oxygen is absent from the 3' carbon.
Phosphate groups are attached through the 5-C of pentose sugar by an ester bond. One polynucleotide chain is formed when the phosphate of one nucleotide forms a phosphodiester bond with the sugar of another nucleotide.
A double-stranded structure is formed by base pairing between nucleotides. The adenine binds to thymine by two hydrogen bonds and guanine binds to cytosine by three hydrogen bonds.
Therefore the molecules of DNA are composed of long chains of nucleotides.
Read more about nucleotides, here
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Is energy used or not?
Answer:
Explanation:
energy is used, everything uses energy especially living organisms
Answer:
Yes energy is used, it can be used in certain ways, like when you are running or walking, guess why you are able to do those because you have energy to do that.
Explanation:
Which of the following are sources of extra nutrients that can cause algae to overgrow in water due to HUMAN activity? CAREFULLY select all options that apply. List the answers.
dissolved oxygen in water
treated waste water
viruses
combined sewage overflow (CSO)
fertilizers
cleaning products
dog poop on the streets of NYC
water running over rocks
(This is 7th grade science)
What are gametes?
male and female reproductive organs
male and female reproductive tissues
male and female reproductive systems
male and female reproductive cells
Answer:
male and female reproductive cellsExplanation:
I hope it helps ❤❤Answer:
the last one
Explanation:
identify and explain three environmental impacts of current agricultural methods
Explanation:
It is profit making practice but it causes increased level of pathogens.
It has increased the level of chemicals in our land and water.
It has increased levels of greenhouse gases in air.
The incidence of cystic fibrosis, a recessive genetic disorder in the Caucasian population of United States, is 1 in every 2,500 individuals. Find the number of heterozygous carriers. (p + q = 1, p2 + 2pq + q2 = 1)
Answer:
The no. of heterozygous carriers = 0.0392
Explanation:
From the given information:
The incidence of this recessive disorder i.e. q² = 1/2500
q² = 0.0004
q = 0.02
From Hardy Weinberg's Equilibrium.
p + q = 1; &
p² + 2pq + q² = 1
∴
p + 0.02 = 1
p = 1 - 0.02
p = 0.98
So, the numbers of heterozygous carrier 2pq is:
= 2 × 0.98 × 0.02
= 0.0392
Rivers that have developed over a long period of time are found in wide valleys with flat, low-lying bottoms. These valleys were
created by the removal of rock and soil through the process of _____.
OA. deposition
B
C. erosion
•D. weathering
glaciation
What do you call protozoa that you can see with the naked eye?
Answer:
Paramecium protozoa
Explanation:
because of their size (50-300 μ long) and the human eye can see things as small as about 100 µm and P.
What kind of inheritance is horse color an example of?
A. Complete dominance
B. Incomplete dominance
C. Co-dominance
How many chromosomes would you expect to be in the daughter cells of the mosquito after mitosis? When starting with 6
Answer:
i think it would be 12 since during mitosis it creates identical daughter cells which doubles up cells.
Explanation:
Answer:
12
Explanation:
If the process of meiosis shown to the right proceeds
normally, how many
chromosomes will cells A, B, C, and D have?
B
Answer:
If I’m correct it’s 15
Explanation:
9. What is the difference betwen climate and weather?
Answer:
Climate is the long-term weather, like it is usually sunny in Florida,
Weather is the weather that you see every day, such as rainy.
Explanation:
Answer:
Weather reflects short-term conditions of the atmosphere while climate is the average daily weather for an extended period of time at a certain location.
Explanation:
Once assembled, what is the key to a protein's unique function?
Answer:
Once assembled, what is the key to a protein's unique function? The manner in which proteins fold is the key to their function
The endoplasmic reticulum is an important region where protein folding occur. Because proteins need to be appropriately folded into distinct structures, this is an essential biological function.
What is importance of protein folding?Proteins that are misfolded or are unfolded improperly impart to the pathophysiology of many illnesses.
Protein folding is a highly delicate process that is regulated by a variety of external stimuli, such as temperature, pH, chemicals, molecule crowding, electric and magnetic fields, and temperature.
These elements affect a protein's capacity to fold into the appropriate functional forms.
Therefore, Protein folding give unique properties to protein functions.
Learn more about protein folding here:
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Helpppppppppppppppppppppppppppppppppp
Answer:
umm i dont understand your question
Explanation:
How does evolution result in reproductive success?
Answer:
Often when species evolve, they receive a trait that may make them live longer or make it where their survival chances are significantly increased. Which in turn can make their offspring stronger and able to live longer, therefore increasing their population.
6B(SCIENCE) (6BB OOB)
4
What is the difference between evaporation and boiling? *
(1 Point)
A) There is no difference - they are exactly the same.
B) Evaporation, unlike boiling, occurs at all temperatures.
C) In evaporation, unlike in boiling, there is no state change.
D) In boiling, unlike in evaporation, the liquid volume reduces.
This question is required.
which layer of the earth is made out of melted metal?
The outer core. A molten nickle- iron alloy.
What parts of the body make up the central nervous system
Answer:
brain and spinal cord
Explanation:
that's it
Moving ions against a concentration gradient requires energy and results 2 points
in uneven concentrations of the ions. ATP powers the pump, allowing it to
create and maintain
of these ions. *
concentration gradients
equilibrium
diffusion
osmosis
Answer:I think osmsis
Explanation:
Summarize in 2-3 sentences, how an RNA vaccine works to help protect you against
viruses?
I
Answer:
boost your immune system
Explanation:
Answer:
Vaccination is the process in which substances called antigens are introduced artificially into the body to stimulate the immune system, the set of cells that protects the body against infections .
the biotic factors of each land biome are determined by its ___
climate
organisms
location
size
Answer:
climate
Explanation:
What molecule do bacteria take in (use up)?
Oxygen
Carbon Dioxide
Water
(This is 7th grade science)
