Answer:
1/8
Explanation:
Which best describes the role of photosynthesis in the carbon cycle?
to break down food into carbon and oxygen atoms
to create food by combining carbon, oxygen, and hydrogen atoms
to release compounds containing carbon into the atmosphere
to aid in the production of carbon dioxide
Zoom
Answer:
to release compounds containing carbon into the atmosphere
Explanation:
Water moves from low to high concentration or high to low?
Answer:
When water moves from low concentrations of solute to high concentrations of solute, it moves from high concentrations of water to low concentrations of water.
Diverse mammals developed and began to flourish in the Cenozoic era . Which of the following also began to develop and flourish during this time ?
Answer:
B. First Bacteria
Explanation:
which organ found in plant cell
Answer:
Chloroplasts?
Explanation:
search it up
Answer:
Vacuole <Mitochondria
Explanation:
stelar system in Lycopodium
Answer:
I didn't understand the question..but here is the definition
Explanation:
Definition of Stelar System:
According to the older botanists, the vascular bundle is the fundamental unit in the vascular system of pteridophytes and higher plants. ... Thus the stele is defined as a central vascular cylinder, with or without pith and delimited the cortex by endodermis.
In the open ocean, algae live only in the deep zone Please select the best answer from the choices provided ОТ OF
Help!!!
Answer:
Of is your answer
Explanation:
Answer:
False
Explanation:
Within a toad population, brown spots (B) are dominant to green spots (b).
The table below shows the phenotype distribution of 250 toads in a
population over several generations. Using the data and Hardy-Weinberg
equations (p2 + 2pq +92; p + q =1) determine the allele frequency for band
explain what is happening in the population.
Answer:
The answer is B: been reduced three fold and the population is experiencing genetic drift
Explanation:
I took the exam.
Answer:
C: The frequency of b has been reduced three-fold. The population is experiencing genetic drift.
Explanation:
I just took the test
A forensics expert has obtained a sample of human blood from a crime scene. How can DNA fingerprinting be useful for identifying the person who left
the blood at the crime scene?
A by identifying the sequence of nucleotides in the DNA of blood cells
B. by comparing DNA from the blood cells with DNA from suspects
C. by identifying certain genetically controlled traits of suspects, such as eye shape and blood type
D. by comparing karyotypes made from blood cells at the crime scene and blood cells from suspects
Answer:
B - by comparing DNA from the blood cells with DNA from suspects!
Explanation:
DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation.
A DNA sample taken from a crime scene is compared with a DNA sample from a suspect.
If the two DNA profiles are a match, then the evidence came from that suspect. (from www.genome.gov )
Hope this helps! :]
A forensics expert has obtained a sample of human blood from a crime scene, DNA fingerprinting may be useful by comparing DNA from the blood cells with DNA from suspects, which is option B.
What is DNA fingerprinting?DNA fingerprinting is a technique used to identify individuals based on their unique DNA profiles, and by analyzing the sequence of nucleotides in an individual's DNA, forensic scientists can create a DNA profile that is unique to that individual. So to identify the person who left the blood at the crime scene, forensic scientists would analyze the DNA in the blood sample and create a DNA profile, and then find out the criminal based on the DNA fingerprinting.
Hence, DNA fingerprinting may be useful by comparing DNA from the blood cells with DNA from suspects, which is option B.
Learn more about DNA fingerprinting here.
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The sensory receptors in the nose and tongue are stimulated by......
chemicals
temperature
light
sound waves
Answer and I will give you brainiliest
Answer:
chemicals
Explanation:
The nose and the tongue are two of the five sensory organs (others being skin, eyes, ears). These organs contain certain cellular structures called SENSORY RECEPTORS, which respond to different stimulus in the environment.
Nose and tongue are two organs that possess a type of sensory receptor called CHEMORECEPTORS. Chemoreceptors are receptors that respond to chemical stimuli. In other words, the receptors in the nose and tongue are stimulated by chemical substances e.g. food chemicals for TONGUE, chemicals in air for NOSE.
Describe the different theories of Oxidative Phosphorylation
Answer:
The Chemical Coupling:
A coupling reaction in organic chemistry is a general term for a variety of reactions where two fragments are joined together with the aid of a metal catalyst.
The Conformational Coupling:
The basic idea, as originally proposed by Robin Irvine, is that stimulation of the IP3 receptor (IP3R) by store emptying induces a conformation change that is transferred to the channel in the plasma membrane through a direct protein-protein interaction (3)
The Chemiosmotic Coupling
For approximately twenty years, it has been generally agreed, in accordance with the chemiosmotic theory, that the coupling of electron transfer reactions to ATP synthesis is mediated by a proton electrochemical gradient, often alternatively called a protonmotive force, generated across these membranes by electron
What are the main factors that affect an ocean current?
geographical features
Wind caused by unequal heating of the earth
none of the choices
Coriolis effect
Answer:
wind causes by unequal heating of the earth
Explanation:
Because,ocean currents are driven by wind, water density differences and tides.Oceanic currents discribe the movement of water from one location to another.
Hope it helps...
How is biomass energy different from wind energy?
O A. Biomass energy emits a large volume of greenhouse gases.
O B. Biomass energy uses a turbine to produce electricity.
O C. Biomass energy is a renewable energy source.
O D. Biomass energy is unavailable in the United States.
Answer: A
Explanation: ap3x
Biomass energy is different from wind energy, as biomass energy emits a large volume of greenhouse gases. The correct option is A.
What is biomass energy?Biomass energy is the energy that is produced by the living organism. This energy is produced by decaying organic matter or burning organic matter.
This biomass energy is produced by burning of matter, which produces pollution, but wind energy does not produce energy.
Thus, the correct option is A. Biomass energy emits a large volume of greenhouse gases.
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what is one thing that the fossil record DOES NOT show?
A)clues to how organisms lived in the past
B)a step by step progression for evolution
C)the color of ancient organisms
D)clues about the past climate of Earth
Answer:
D)clues about the past climate of Earth
Explanation:
The fossil record certainly has gaps, mostly because the conditions required to create fossils have been rare ever since life began on Earth. A very small percentage of animals that have lived and died ever became fossils. Thus, many pieces of the puzzle are missing; some will never be found.
what is a safe method to heat alcohol/methylated spirits?
Answer:
Explanation:
Boil a pot of water that has been tested with a stainless steel dish that sits adequately on top of the pot, without falling in. When the water boils, turn off the stove, which eliminates the ignition source, then pour your ethanol into the bowl, and place it on top of the hot water pot
Answer:
Boil a pot of water that has been tested with a stainless steel dish that sits adequately on top of the pot, without falling in. When the water boils, turn off the stove, which eliminates the ignition source, then pour your ethanol into the bowl, and place it on top of the hot water pot.
Explanation:
Under which of these conditions would scientists use the polymerase chain reaction (PCR) before they analyze a DNA sample?
A
The DNA sample comes from a bacterium or virus,
B. The DNA sample has been cut into fragments by restriction enzymes.
COnly a small amount of the DNA sample is available,
D.
The DNA sample includes regions that are transcribed into mRNA,
Answer: C
Explanation:
A specific DNA segment is amplified via PCR from a complicated combination of starting material, commonly referred to as template DNA, hence option C is correct.
What is the polymerase chain reaction (PCR)?The reaction's simplicity and the relative case of the practical manipulation procedures are what's behind it. The reaction needs some knowledge of the flanking DNA fragment's sequence in order to be amplified.
Taq polymerase is the name of the heat-tolerant bacterium from which the DNA polymerase normally used in PCR was derived (Thermus aquaticus). T. aquaticus resides in hydrothermal vents and hot springs.
The primers are used in accordance with the sample or target DNA. The procedure, which entails numerous cycles in which copies are created, likewise uses DNA and Taq polymerase.
Therefore, the three fundamental phases are "denaturation," "annealing," and "extension."
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1.chemical energy
2.photosynthesis
3.producers
4.radiant energy
5.transform
The energy in matter can change, or____
from one form to another.
Matter and energy interact during the process of_______
The Sun's
______ ______
is transformed into________
Since plants have the ability to convert the Sun's radiant energy
into food, they are called
___
Explanation:
The energy in matter can change, or_transform___
from one form to another.
Matter and energy interact during the process of_producers______
The Sun's
_.radiant energy
is transformed into_chemical energy_______
Since plants have the ability to convert the Sun's radiant energy
into food, they are called
_photosynthesis__
Which describes a lava flow that travels downhill at over 100 mph?
A. Shield
O B. Pyroclastic flow
O C. Pelean
O D. Tephra
Answer:
B Pyroclastic flow
Explanation:
okay, no exp h e l l p
Answer:
Red bacteriophage = virus
Red circle = DNA/RNA
Hope that helps!
"Noseblindness" is a form of habituation. It could also be considered to be sensory adaptation.
True or false
Answer:
True
Explanation:
Need as soon as possible
Answer:
100% will be black
Explanation:
black is a dominant trait
AUG is the start codon, and UAG, UGA, and UAA are the possible stop codons.
The code on a human mRNA reads AUGCCCUUUAUGGGGUAA.
ges
Which statements are true about this sequence?
Select all that apply.
Protein synthesis cannot start because there is no start codon.
The protein will have only four amino acids.
Two methionine amino acids will be in the protein chain.
The protein will have five amino acids.
Answer:
The correct answer is -
Two methionine amino acids will be in the protein chain.
The protein will have five amino acids.
Explanation:
In protein synthesis, there are mRNA codons made up of the three bases known as triplet codons that form a specific amino acid during translation. There is a specific codon known as the starting codon that is AUG present at the beginning of almost every protein sequence and code for the methionine amino acid. UAG, UGA, and UAA are the stop codons if present at the end of the mRNA sequence and if any of these stop codons are present at the end of the sequence they do not produce any amino acid.
In this case, the mRNA sequence having 6 triplet codons AUG CCC UUU AUG GGG UAA where the first AUG is a start codon and code for the methionine and UAA is a stop codon and do not code for any amino acid therefore, the protein would carry only 5 amino acid and as there are two AUG so it has two methionine.
Answer:
Two methionine amino acids will be in the protein chain.
The protein will have five amino acids.
Explanation:
just took test
which is an example of a secondary energy source
Answer:
Explanation:
Secondary energy resources are those which do not occur naturally but which are obtained from one or more of the primary energy resources. Example: Petrol or gasoline, electrical energy from coal burning, hydrogen obtained by electrolysis of water etc. Non-commercial source of energy: Firewood, cow dung , and vegetable wastes.
Please help ASAP! You can answer as much as you can but I need all the answers! Please and thank you have a great and blessed day!
Answer:
1) I don't know what option "B" is but with whats given the answer is D
2) For this one I can't see what option "D" is but with whats given the answer is C
3) I can't see what option "B" is but with whats given the answer is D
4) I can't see option "D" but out of those the answer is B
During sexual reproduction, the offspring inherit their traits from __________. both parents themselves the father the mother
Answer:
Both parents
Explanation:
Punnett squares will show that for each trait (eye color, hair color, hair type, etc.) there are at least 3 different options (for a 2x2 Punnett square). I've also seen 4x4 Punnett squares where two traits are used.
name the four major groups in the plant kingdom and discuss the major evolutionary trends across the groups
Answer:
The kingdom Plantae consists of four major plant groups on land: bryophytes (mosses), pteridophytes (ferns), gymnosperms (cone-bearing plants), and angiosperms (flowering plants). Plants may be categorized as vascular or nonvascular. A vascular plant has tissues for transporting water or sap. Nonvascular plants do not.
Type of compound for enzyme
All of the following are properties of a population EXCEPT*
Dispersion
Destiny
Density
Size
How do the body systems interact with each other?
Answer:
Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin. Your nervous system controls all these activities with electrical impulses.
What kinds of diseases can vaccinations prevent?
genetic diseases only
bacterial diseases only
viral diseases only
any infectious disease
Any infectious disease (genetic, bacterial, and viral) can be prevented by vaccinations. Therefore, option D is correct.
Vaccinations are primarily designed to stimulate the immune system and provide protection against specific pathogens that cause diseases. They work by introducing harmless components of the pathogen, such as inactivated or weakened viruses or bacteria, or their components (antigens), into the body.
This exposure allows the immune system to recognize and mount an immune response against the pathogen without causing the actual disease.
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Match each description to the correct step
Anaphase I - Pairs of chromosomes separate and move to opposite ends of the cell
Telophase I - The nuclear membrane forms around the chromosomes
Prophase I - Each chromosome moves toward and pairs up with its mate
Metaphase I - Each pair of chromosomes line up along the middle of cell
Answer:
Look at screenshot
Explanation: