Answer:
i can get a few months ago
Explain how an action potential and graded potential are different
Answer:
Graded potentials are brought about by external stimuli (in sensory neurons) or by neurotransmitters released in synapses, where they cause graded potentials in the post-synaptic cell. Action potentials are triggered by membrane depolarization to threshold.
Plz help last question on my test
50.Which type of cell must be produced more frequently than the other types?
1)brain cells
2)red blood cells
3)muscle cells
4)liver cells
5)stomach lining cells
Answer:
muscle cell is produced fast
Answer:
2
Explanation:
red blood cells
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list five evidence of photosynthesis and describe any two
Answer:
Hi there, I will help you
Explanation:
It houses glucose, which plants use for food. The presence of starch in a leaf is reliable evidence of photosynthesis. That's because starch formation requires photosynthesis.
What is the element or compound in the Phosphorus Cycle and why is it important to living things?
Answer:
Phosphorus is an essential nutrient for animals and plants. It plays a critical role in cell development and is a key component of molecules that store energy, such as ATP (adenosine triphosphate), DNA and lipids (fats and oils). Insufficient phosphorus in the soil can result in a decreased crop yield.
Explanation:
Answer:
Thus, phosphorous is crucial to living organisms because ATP is crucial. Phosphorus is also important because it makes up our DNA. Phosphate is part of the so-called ladder legs which Adenine, Thymine, Guanine, and Cytosine bind to see. It holds this same job in RNA.
Explanation:
What is electric current?
O electrons that move one time
O The flow of moving electrons
Answer:
___________________________________________________________
Electrons, which continuously move in wire, are called Electric Current. For solid conductors, electric current refers to directional negative-to-positive electrons from one atom to the next. Liquid conductors and gas conductors, electric current refers to electrons and protons flow in the opposite direction.
___________________________________________________________
Answer:
The flow of moving electrons.
Explanation:
I just took the quiz.
Which of the following statements BEST describes ASEXUAL reproduction?
Question 8 options:
A single-celled organism uses meiosis to create two identical copies of itself.
Two multi-celled organisms uses meiosis and fertilization to create a unique offspring.
Two multi-celled organisms use mitosis and fertilization to create a unique offspring.
A single-celled organism uses mitosis to create two identical copies of itself.
The statement “ A single-celled organism uses mitosis to create two identical copies of itself” best describes asexual reproduction
The statement which best describes the mode of asexual reproduction is that a single-celled organism uses mitosis to create two identical copies of itself. Thus, the correct option for this question is D.
What is Asexual reproduction?Asexual reproduction may be characterized as a mode of reproduction in which a new offspring is produced by a single parent. This type of reproduction does not involve the fusion of gametes or a change in the number of chromosomes.
Asexual reproduction is homologous to the process of mitosis. This is because both of them involve the production of two identical daughter cells from a parental cell.
While meiosis produces four daughter cells which are genetically unique to the parent cells. It is the characteristic feature of sexual reproduction that is opposite to an asexual one.
Therefore, the correct option for this question is D.
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What causes antibiotic resistance?
- Only using antibiotics when you are also doing radiation therapy
- Only using antibiotics when you are also doing chemotherapyAny use of antibiotics causes resistance
- Any use of antibiotics causes resistance
- We do not know
Answer:
an apple causes antibiotic resistance
In the natural blank method, the natural physical, chemical, and biological processes in soil and water gradually break down pollutants.
what's blank?
Answer: Attenuation
Explanation: Natural attenuation: in this method, the natural physical, chemical, and biological processes in soil and water gradually break down contamination or pollutants into harmless components. It helps reduce contamination concentration and soil and water to acceptable levels. Examples of natural attenuation processes include
- dilution or dispersal of pollutants in moving water
- volatilization or reduction of pollutants into vapor
- absorption or attachment of balloons to soil or vegetation
These processes are accomplish naturally. Little or no human intervention is necessary.
Answer:
In the natural attenuation method, the natural physical, chemical, and biological processes in soil and water gradually break down pollutants.
Explanation:
small molecules, such as oxygen and carbon dioxide, pass through membranes by a process called
Answer:
diffusion
Explanation:
The Wunderlich Farms Boer Goat has a 4 chambered stomach and chews it's cud to assist with digestion. What type of adaptions are these?
A. 4 chamber stomach = behavioral and chewing cud = internal structural
B. 4 chamber stomach = external structural and chewing cud = behavioral
C. 4 chamber stomach = internal structural and chewing cud = external structural
D. 4 chamber stomach = internal structural and chewing cud = behavioral
Answer:
The answer is option A "4 chamber stomach = behavioral and chewing cud = internal structural"
Explanation:
Goats and other ruminants do not digest food directly as they eat their food and the reason is that ruminants do not have the enzymes that are necessary for breaking down the food directly as they eat so digestion in ruminants and particularly Goats has to undergo processes or procedures before the final digestion takes place.
All the processes in digestion for ruminant animals takes place in their four chambered stomachs which are the Rumen, Reticulum, Omasum and Abomassum.
In the four chambered stomach of Goat, the type of adaptation is behavioral and chewing cud which is the internal structure.
What is the process that allows plants to grow
photosynthesis? girl idek i need points
Answer:
photosynthesis allows plants to grow. they convert solar energy from the sun into sugars used for staying healthy.
Explanation:
hope this helped, have a nice day ♥
What did you include in your response?
Photosynthesis occurs in plants.
Photosynthesis uses sunlight as a source of energy.
Photosynthesis converts light energy to chemical energy.
I included other information.
Answer:
Photosynthesis occurs in plants
Explanation:
I got this correct.
is biological control effective than chemical control of crop protection?
Answer:
No
Explanation:
There are different ways or methods of protecting crops from pest and disease infestation. Two of those ways as mentioned in this question are the chemical control and biological control. Biological control of crop protection involves the use of natural enemies of crop pests, which happens to be living or biotic organisms while chemical control entails the use of pesticides and herbicides to control crop pests and diseases.
Among these two methods, the chemical control is more effective because it yields instantaneous results and gets rid of pests and diseases faster. However, in terms of sustainability, the biological control method is more eco-friendly. Hence, based on this question, biological is not more effective than chemical control of crop protection.
As the zygote undergoes cleavage, the number of cells increases but the overall size of each cell gets smaller. By the time the zygote reaches the 16-cell stage, it is called a
Answer:
Morula.
Explanation:
A zygote is the product resulting from fertilization. During the journey of the zygote through the fallopian tubes, until its implantation in the uterus, it divides many times, thus going through different phases. From the 16 cells it is called a morula, this stage represents the set of cells from the division of the fertilized ovum, in the first stages of embryonic development. It represents an intermediate phase between the zygote and the blastocyst. The morula stage is characterized by the fact that the replicating cells are all the same size, and there is no differentiation of organs.
The equation total # of people in an area
(land) area in kmZor miZ) IS used to calculate
growth rate
b. population density
death rate
d
carrying capacity
Answer:
B: population density
Explanation:
edg '22
The equation total # of people in an area is used to calculate population density. Thus option B is correct.
What is population density?Population density is defined as the proportion of a population's members per square meter or cubic meter on average.
It can also be defined as collections of individuals from the same species that coexist in a given area.
There are basically three types of population density.
Arithmetic densityPhysiological densityAgricultural densityThe average person count per unit of area or volume can also be known as population density.
The factor that affect population density are
Birth rateDeath rateDispersionThus, the equation total # of people in an area is used to calculate population density. Thus option B is correct.
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Living things must be able to obtain and use material and energy to grow, develop and reproduce. What term in Biology is used to describe this characteristic of life
Answer:
homeostasis
Explanation:
During a reproductive process, paired chromosomes often swap lengths of DNA at random. This process further increases the number of new genotypes created in each generation This helps explain why, in
species that reproduce sexually, no two siblings (except identical twins) look exactly alike. With all that recombination, you can end up with your mother's eyes, your father's nose, and how that combines
qualities from both parents. SC 012 L 16.14
Which mechanism produces this genetic diversity?
Y chromosome syndrome
Asexual reproduction
Crossing over
Mitosis
Crossing over is when the alleles cross over and pair up, resulting in the genotype for an offspring.
What is Crossing over?When it comes to genetics and genomics, the term "crossing over" describes the DNA exchange that takes place between paired homologous chromosomes (one from each parent) during the formation of egg and sperm cells (meiosis).
This mechanism leads to novel allele combinations in the gametes (egg or sperm) generated, ensuring genetic variety in any baby born.
Crossing over is a cellular process that happens during meiosis when chromosomes of the same type are lined up. When two chromosomes — one from the mother and one from the father — line up, parts of the chromosome can be switched.
Therefore, Crossing over is when the alleles cross over and pair up, resulting in the genotype for an offspring.
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In a certain plant, the allele for red flower color (R) is dominant over the allele for white flower color (r). A cross is performed between a plant with red flowers and a plant with white flowers. The offspring are 47 plants with red flowers and 51 plants with white flowers. What are the genotypes of the parent plants?
Answer:
Rr and rr
Explanation:
The genotypes of the parents would be heterozygous red (Rr) and true-breeding white (rr).
Since the allele for the red flower color (R) is dominant over that of the white flower color (r), for a cross to produce both red and white flower color plants, the red parent must be heterozygous (Rr) and the white parent true-breeding (rr).
Rr x rr
Rr Rr rr rr
Rr = red
rr = white
If the red parents is true-breeding
RR x rr
Rr Rr Rr Rr
All their offspring would be red without any white flower color.
Hence, the genotypes of the parent are Rr and rr.
A large region that has a particular type of climate that effectively influences the types of plants and animals that inhabit each ecosystem is a(n) ___________________.
True or False:
Our immune system normally protects from cancer cells that arise within our bodies due to the action of red blood cells. *
Answer:true
Explanation: HOPE THIS HELPS
true.
have a great day feel free to correct me if I'm wrong
,
Is duralumin a mineral, a rock, or neither?
Answer:
Duralumin is an aluminium alloy.
Explanation:
Duralumin is a kind of mineral.
What is Duralumin?There isn't a single chemical composition for duralumin because it is an alloy of copper, magnesium, manganese, as well as aluminum that can change based on its intended application. 4.4 percent copper, 1.5 percent magnesium, 0.6 percent manganese, and 93.5 percent aluminum make up a typical alloy.
What is mineral?A mineral would be an inorganic solid that forms in nature and have an organized atomic structure and a known chemical composition. Even while it may seem like a mouthful, if you break it down, it becomes clearer. Minerals have been created naturally. They are not human-made. They have inorganic, minerals.
Another of the earliest varieties of age-hardenable aluminum alloys goes by the brand name Duralumin. The word is a mix of aluminum and Dürener.
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As thermal energy is added to a substance, which of the following changes can be predicted?
O
Spacing between particles will decrease
Vibration of individual particles will increase
Temperature of the substance will decrease
The pressure of the air around the substance will increase
Answer:
Vibration of individual particle will increase
Explanation:
This is due to the fact that whenever any substance of matter is increased in temperature, the atoms begins to move away from each other. Take for instance an ice cube for example, when an ice cube (a solid) is heated it becomes water, (a liquid). Proving that when a substance is heated, no matter the density of the material, the individual particles, or atoms, begins to spread apart.
Is lysine a monomer or polymer?
Answer: Lysine is a polymer I believe. Hope this helps.
The process of genetic engineering: A) works to change outcomes of traits by altering genetic material. B) is the manipulation of the genetic code in an attempt to improve a species. C) allows scientists to create their own mutations in organisms D) all of the above
D) All of the above
Explanation:
Genetic engineering "allow scientists to create their own mutations in the organisms" by "manipulating the genetic code in attempt to improve a species" which is virtually the same as"altering genetic material".
if you have 6 pairs of homologous chromosomes, how many chromosomes do you have ?
Answer:
12
Explanation:
because that is how the body works
Which of the following lists identifies organisms that are producers in food webs?(20 points and multiple choice)
A. algae, grass, sunflowers
B. mushrooms, bacteria, earthworms
C. termites, fleas, ticks
D. grasshoppers, lichen, venus fly traps
Answer:
A
Explanation:
Algae, grass, and sunflowers all produce their own food since they can't consume anything.
i feel like its B. sorry if im wrong
what causes an enlarged spleen??
Explanation:
An enlarged spleen can be caused by infections, cirrhosis and other liver diseases, blood diseases characterized by abnormal blood cells, problems with the lymph system, or other conditions. Other causes of an enlarged spleen include: Inflammatory diseases such as sarcoidosis, lupus, and rheumatoid arthritis.
How would you describe the interior of the lungs?
Explanation:
The interior of the lungs is made up of spongy tissues containing many capillaries and around 30 million tiny sacs known as alveoli.
The alveoli are cup-shaped structures found at the end of the terminal bronchioles and surrounded by capillaries.
Answer:
It's spongy and air filled sort of.
Explanation:
The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.
Energy is released from ATP when
a fourth phosphate is added to the molecule.
the last phosphate bond is broken.
all three phosphate bonds are formed.
the last phosphate bond is formed.
the last phosphate bond is broken.
that's called a macroergic bond between the 3rd and 2nd phosphate groups
Energy is released from ATP when a fourth phosphate is added to the molecule the last phosphate bond is broken.
What is ATP?ATP, sometimes referred to as adenosine triphosphate, is a chemical that transports energy inside of cells. It is produced as a byproduct of photophosphorylation, which adds a phosphate group to a molecule using light energy, cellular respiration, and fermentation. It serves as the primary energy currency of the cell.
All forms of life utilize ATP. In addition to being used as an energy source, it is also integrated into deoxyribonucleic acid (DNA) during DNA synthesis and utilized in signal transduction pathways for cell communication.
Therefore, Energy is released from ATP when a fourth phosphate is added to the molecule the last phosphate bond is broken.
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Nitrogen is required for protein formation. What is responsible for the bulk of nitrogen fixation?
A.
air
B.
animals
C.
bacteria
D.
lightning
Answer:
C: Lightning
Explanation:
Because bulk of nitrogen fixation is done by free living or symbiotic bacteria.