Answer:
Inhibit control over ions.
Explanation:
The immediate effect of the neurotoxin on the postsynaptic neuron is to inhibit control over ion concentrations across the cell membrane. The neurotoxin blocks nervous transmission at synapses which prevents the vesicles containing the neurotransmitter from fusing with the presynaptic membrane so the information does not transfer from one neuron to another and as a result the body is present at constant relaxation mode. The membrane potential of postsynaptic neuron will decrease due to neurotoxin.
What kinds of characters can you use to create a data matrix for estimating phylogenetic trees?
a. any heritable trait.
b. any morphological trait.
c. any molecular trait.
d. any measurable trait.
Answer: The correct option is A
any heritable trait
Explanation:
This is because phylogenetic tree is a diagram that show or indicate the evolutionary relationships between several organisms from a descent or that have common anscetors which is based on the differences or similarities of there phenotypic traits or physically expressed inheritable traits.
is natural selection the only component of darwin's theory of evolution
Which of the following statements is true regarding individual III-5? Select all that apply. Select all that apply. Individual III-5 is male. Individual III-5 is female. Individual III-5 is affected by the genetic condition. Individual III-5 is not affected by the genetic condition. Individual III-5 is the proband.
Answer:
III-5 is male.
Individual III-5 is affected by the genetic condition.
Individual III-5 is the proband.
Explanation:
In human pedigrees, males are represented by squares while females are represented by circles. Individuals affected by the focus trait in human pedigrees are usually shaded, those that are carriers are half-shaded, while those that are not affected at all are not shaded in any form.
Thus, from the pedigree (see the attached image), III-5 individual is a male and affected by the genetic condition in focus.
Also, III-5 individual is a proband, because a proband is an individual that is first affected by a genetic trait in a family.
(20 POINTS) How would your body repair a skinned knee?
Answer:
As soon as you cut or scrape skin anywhere on your body, special blood cells called platelets spring into action. Platelets stick together like glue at the cut, forming a clot. This clot is like a protective bandage over your cut that keeps more blood and other fluids from flowing out.
(Hope this helped :> )
Please hit the brainliest (golden crown)
-Thanks^^
5. According to a biomass pyramid, 50 mice will need 200 square meters of grass, if one mouse needs to eat four square meters of
grass to stay healthy.
O false
true
I will give out brainliest
Answer:
The statement is true.
Explanation:
As every single living organism, the mice also have their own unique requirements as to how much food they need to produce enough energy in order to stay healthy. Because the mice are small, warm-blooded, highly active, and have very fast metabolisms, they need a lot of food for their size.
If one mouse needs four square meters of grass to stay healthy, so if we want to find out how much grass is needed for more mice we just need to multiply the number of mice by the amount of grass needed for one mice. In this case, we have 50 mice:
4 x 50 = 200
We got 200 square meters of grass, meaning that that would be the amount/area of grass that will be enough to support the population of 50 mice.
Order the stages of development in human beings.
___ is when homologous chromosomes exchange equivalent sections of their
chromatids.
Transcription
Crossing-over
Synthesis
Replication
Answer: C the 3rd one
Explanation:
Which statement about community forestry is true?
A)
It involves comparing actual practices with practices that contribute to sustainability.
B)
The challenge with certification is that sustainability can be determined only by using future observations.
C)
Certification is considered more as an art or a craft than as a science.
D)
All of the above
Answer:
D)
All of the above
Explanation:
took the test and got it right!
URGENT PLZ ANSWER ASAP
In order for Tiktaalik to be considered a transitional fossil, when does it need to have appeared in the fossil record?
a) after amphibians
b) between fish and amphibians
c) before fish
d) at the same time as amphibians
e) before fish and amphibians
PLZ ANSWER URGENT ASAP
Answer:
A
Explanation:
i think that's the answer but I'm not sure
Which of the following best describes the term translation?
Transferring information from one source to another in a different language.
Changing information from one source to another.
Transferring information from one source to another.
Transferring information from one source to another in the same language but a
different format.
Answer:
transferring information from one source to another in the same language but a different format
the stem is responsible for providing support to the plant. A _______ is a type of stem that grows underground. it is capibile of asexual reproduction and _______ food.
the options for the first blank is bract, rhizome, and runner.
the options for the second one are storing, producing, and transporting
Answer:
I think rhizome and producing is a answer.I am sure for first one but not for second
Answer:
the first blank is rhizome. the second is storing.
What types of cells have DNA? Where in the cell is it located
Answer:
Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are structures within cells that convert the energy from food into a form that cells can use.
Explanation:
Answer:
germ cells have DNA it is present inside nucleus
1 ml of water should weigh 1 gram. You measured the weight of 1 ml of water using
two different tools. The measurements are listed below:
Measurements using tool A are as follows: 1.3, .99, 1.0,.89, 1.6, 1.1 = Average value of
1.2
Measurements using tool B are as follows: 1.5, 1.6, 1.4, 1.5, 1.4, 1.6 = Average value of
1.5
What is the %ERROR of Tool A?
O a. 2.2%
Ob..20%
O C. 20%
O d. 22%
Check Answer
Answer:
20%
Explanation:
Given that:
Actual weight of 1 mL of water =. 1g
Average weight using :
TOOL A = 1.2
TOOL B = 1.5
Percentage Error of TOOL A:
(|approximate measurement - actual measurement| / actual measurement) * 100%
(|1.2 - 1| / 1) * 100%
(0.2 / 1) * 100%
0.2 * 100%
= 20%
How might forest fires benefit the forest ecosystem?
A)
Forest fires clear dead tree limbs.
B)
Forest fires promote new growth.
C)
Forest fires enrich the soil.
D)
All of the above
Answer:
Answer is option D All of the above
Answer:
D
Explanation:
I chose D because forests are crowded with cut down tree stumps and polluted soil. And when the fire burns all of that unecesary stuff away you have more room than you had before to grow your trees bigger and better. And now you have enriched soil
A diagram showing types of energy by color with labels. From left to right, colors are red, orange, yellow, green, blue, indigo, violet. Thermal IR and Infrared in a dark red section with label B. Ultraviolet and X-rays are in a dark violet section with label C. Visible light is between Infrared and Ultraviolet with label A on the red end and label D on the violet end. Long wavelengths begin on the left and become shorter on the right end.
Use the drop-down menus to identify the type of energy each phrase describes.
The shortest wavelength of visible light
Energy that can be felt as heat but not seen
Short, invisible rays that can cause eye damage
Visible light with the longest wavelength
Answer:
Explanation:
D , B , C ,A
Answer:
D,B,C,A
Explanation:
Vocabulary: aerobic respiration, anaerobic respiration, ATP, cellular respiration, chlorophyll, chloroplast, cytoplasm, glucose, glycolysis, mitochondria, photosynthesis
1. What does a plant need to survive and grow? __________ and _____________
2. What does an animal need to survive and grow? __________ and _____________
3. What is the chemical formula of Oxygen? _______
4. What is the chemical formula of glucose? _______________
5. What is the chemical formula of carbon dioxide? ______
6. What is the chemical formula of water? _______
Answer:
The correct answer is -
1. photosynthesis and cellular respiration
2. glucose and cellular respiration
3. O2
4. C6H12O6
5. CO2
6. H2O
Explanation:
For the survival and growth of a plant, there are several functions and structure are essential but two most important parts are photosynthesis that provides food and glucose for the plant and its nourishment and other is cellular respiration which is required to convert glucose into ATP a form of energy.
In animals, photosynthesis is not possible so they depend on the plants and other sources for glucose and another important process for growth and survival is cellular respiration.
The chemical formula of oxygen, glucose, carbon dioxide, and water is as follow:
3. O2 - oxygen
4. C6H12O6 - glucose
5. CO2 - carbon dioxide
6. H2O - water
what is the expected outcome of crossing two tomato plants that are heterozygous for hairy stems
Answer:
Expected outcome: HH, Hh, Hh, and hh
The phenotypic ratio of the offsprings will be 3 hairy stems : 1 hairless stem
Explanation:
This question involves a single gene coding for possession of hair on stems or not in tomato plants. The allele for hairy stem (H) is dominant over the allele for a hairless stem (h).
According to this question, if two tomato plants that are heterozygous for hairy stems (Hh) are crossed, the following gametes will be produced by each parent: H and h. Using these gametes in a punnet square, the following proportion of offsprings will be produced:
HH, Hh, Hh, and hh
3 hairy stems (HH, Hh, Hh) : 1 hairless stem (hh).
Answer:
75% hairy stems; 25% hairless stems
Explanation:
Cite particularly the difference in the synthesis of the two biomolecules in animals and plants.
Answer:
The preceding section reviewed the major metabolic reactions by which the cell obtains and stores energy in the form of ATP. This metabolic energy is then used to accomplish various tasks, including the synthesis of macromolecules and other cell constituents. Thus, energy derived from the breakdown of organic molecules (catabolism) is used to drive the synthesis of other required components of the cell. Most catabolic pathways involve the oxidation of organic molecules coupled to the generation of both energy (ATP) and reducing power (NADH). In contrast, biosynthetic (anabolic) pathways generally involve the use of both ATP and reducing power (usually in the form of NADPH) for the production of new organic compounds. One major biosynthetic pathway, the synthesis of carbohydrates from CO2 and H2O during the dark reactions of photosynthesis, was discussed in the preceding section. Additional pathways leading to the biosynthesis of major cellular constituents (carbohydrates, lipids, proteins, and nucleic acids) are reviewed in the sections that follow.
Go to:
Carbohydrates
In addition to being obtained directly from food or generated by photosynthesis, glucose can be synthesized from other organic molecules. In animal cells, glucose synthesis (gluconeogenesis) usually starts with lactate (produced by anaerobic glycolysis), amino acids (derived from the breakdown of proteins), or glycerol (produced by the breakdown of lipids). Plants (but not animals) are also able to synthesize glucose from fatty acids—a process that is particularly important during the germination of seeds, when energy stored as fats must be converted to carbohydrates to support growth of the plant. In both animal and plant cells, simple sugars are polymerized and stored as polysaccharides.
Gluconeogenesis involves the conversion of pyruvate to glucose—essentially the reverse of glycolysis. However, as discussed earlier, the glycolytic conversion of glucose to pyruvate is an energy-yielding pathway, generating two molecules each of ATP and NADH. Although some reactions of glycolysis are readily reversible, others will proceed only in the direction of glucose breakdown, because they are associated with a large decrease in free energy. These energetically favorable reactions of glycolysis are bypassed during gluconeogenesis by other reactions (catalyzed by different enzymes) that are coupled to the expenditure of ATP and NADH in order to drive them in the direction of glucose synthesis. Overall, the generation of glucose from two molecules of pyruvate requires four molecules of ATP, two of GTP, and two of NADH. This process is considerably more costly than the simple reversal of glycolysis (which would require two molecules of ATP and two of NADH), illustrating the additional energy required to drive the pathway in the direction of biosynthesis.
is onions a living thing? Explain why
Answer:
yes
Explanation:
The sun is made mostly of hydrogen which is a food for cells so the sun must be alive. Onions are loaded with cells so onions are a living thing.
Plants can have a circulatory system.
O True
O False
Answer:
True
Explanation:
As plants evolved to be largwr, they will also developed thwir own kind of Circulatory systems.
Refer to the experimental set-up above. What is one way the student can measure the rate of photosynthesis using this experimental design?
Answer:
The student can investigate the amount of gas produced at different distances from a lamp (using a lamp)
Answer:
hhahahha i need my points on my alt account
Explanation:
g
DNA is called a DOUBLE helix. Why would the structure of DNA
be referred to as double? (hint: number of strands, or sides?)
PLEASE HELP
Answer:
The model is called a double helix because two long strands twist around each other like a twisted ladder. The rails of the ladder are made of alternating sugar and phosphate molecules. The steps of the ladder are made of two bases joined together with either two or three weak hydrogen bonds.
Explanation:
How many molecules of water are created when making a lipid?
Answer:
Three molecules
Explanation:
Since fats consist of three fatty acids and a glycerol, they are also called triacyclglycerols or triglycerides. Triacyclglycerols: Triacylglycerol is formed by the joining of three fatty acids to a glycerol backbone in a dehydration reaction. Three molecules of water are released in the process.
Answer: 3 molecules
Explanation: Hope that helps
Which correctly describes the set of clades that
contain the arthropods, from largest to smallest?
Complete question:
Which correctly describes the set of clades that contain the arthropods, from largest to smallest?
Archaea: Eukaryotes: Opisthokonts: Animals: Protostomes Ecdysozoa: Arthropods Eukaryotes: Opisthokonts: Nuclearia: Animals: Protostomes Ecdysozoa: Arthropods Eukaryotes: Opisthokonts: Animals: Deuterostomes Ecdysozoa: Arthropods Eukaryotes: Opisthokonts: Animals: Protostomes: Ecdysozoa: ArthropodsAnswer:
4. Eukaryotes: Opisthokonts: Animals: Protostomes: Ecdysozoa: Arthropods
Explanation:
Taxonomy is the study of different organisms, their classification into categories according to their morphological and molecular characteristics and their evolutionary relationships, and assigning to each them a binomial name.
The eukarya domain is composed of all the unicellular or pluricellular organisms that have eukaryotic cells that characterize by having a well-defined nucleus surrounded by a complex biological membrane. They also present organelles delimitated by membranes. These organisms reproduce asexually and sexually. Animalia Kingdom: Includes different phyla closely relates. The embryonary development of bilateral coelom animals makes a place for the division of two groups: protostomes and deuterostomes. Among protostomes might be mentioned the flatworms, annelids, mollusks, and arthropods. Protostomes show spiral initial segmentation, and the mouth develops as a first opening near the blastopore. Ecdysozoan Superphylum: Their bodies are covered by a cuticle that provides protection. They have a complete digestive system. They might reproduce sexually and asexually.Phylum Arthropoda: Invertebrates characterized for having an exoskeleton, a segmented body, and articulated appendixes. A very diverse group with many different characteristics.Name and describe two (2) pathways in the Health Science career cluster.
Which of the following is NOT a
common source of air pollutants?
A. agriculture
B. burning yard waste in your back yard
C. driving a car
D. applying fertilizer granules to your yard
Application of fertilizer granules to the yard is not a common source of air pollutants.
What are air pollutants?The natural and artificial airborne components, which are released into the air resulting in air pollution are known as air pollutants. These are detrimental to health of human beings as well as the entire planet.
Agriculture is an essential sector, which contributes to air quality and environmental effects. The air pollutants from agriculture like hydrogen sulfide, ammonia, toxic organic components, particulate matter, and pesticides are contributing to human health issues.
Burning yard waste release harmful gases like carbon monoxide to the atmosphere contributing to health issues. While driving car, combustion of fuels takes place, which release air pollutants to the atmosphere.
The application of fertilizer granules to the yard is the common source of water pollutant as washing off of fertilizers into the water bodies results in water pollution, which is harmful to the aquatic species and affects the food chain associated with it.
Thus, the correct answer is option D.
Find out more information about air pollutants here:
https://brainly.com/question/9420026
What happens when an electron and a proton get close together
Answer:
they will attrack
Explanation:
proton and a electron will attract each other but if there the same like electron and electron they will repel each other
Explanation:
The closer they are together, the stronger this attraction wil be. two protons (or two electrons) will repel each other
Which behavior is a response to an external stimulus?
A. An elephant drinks water to quench its thirst.
B. A dog vomits during an illness to rid itself of pathogens.
C. A child gets a fever to fight off the flu.
D. A turtle suns itself on a rock during a cool day.
Answer:
The answer is in picture below
Explanation:
Hope this helps <3
15. What are the good and bad effects of lovalty?
Answer:
hope it helps
Explanation:
Loyalty is the most overvalued value. ... When people demand your loyalty what they're usually trying to do is escape accountability. I am not saying loyalty has no value but rather being loyal to people and organizations who do not keep their promises, maintain standards, play favorites or exploit you is self-destructiv
In 3–5 sentences, compare and contrast the flow of matter and energy in each
trophic level for land-based ecosystems and marine ecosystems. How and why
are they similar, and how and why are they different? (4 points)
Answer:There is a fundamental difference in the way energy and matter flows through an ecosystem.Matter flows through the ecosystem in the form of the non-living nutrients essential to living organisms. When a living organism dies, nutrients are released back into the soil. These nutrients then are absorbed by plants, which are eaten by the herbivores. Matter, once again, is passed on. The herbivore is eaten by a carnivore (and matter is yet again transferred therein). Ultimately, when the carnivore dies, matter is returned back to the soil by the decomposers and the cycle repeats. So you see, matter is recycled in the ecosystem.Unlike matter, energy is not recycled through the system. A part of the energy is lost at each stage.
Explanation: