Answer:
During the course of a continuous isometric contraction of given strength, the electrical activity progressively increases. This is due to recruitment of motor units taking place to compensate the decrease in force of contraction occurring in the fatigued muscle fibres.
Explanation:
Which of these is most likely to be true of an urban community ?
Answer:
An urban community has buildings. An urban community has more air pollution than other types of communities.
Crossing over and fertilization both result in which of the following
A.transcription
B.increase in genetic variation
C.an increase in the chromosome number
D. horizontal gene transfer
Answer: increase in genetic variation
Explanation:
What percent of America's original forest remains today?
Less than 4% or under 40 million acres of America's original forests remain in existence.
(hope this helps ^^)
Answer:
Less than 4% or under 40 million acres of America's original forests remain in existence. According to the World Resources Institute, less than 1% of "Frontier Forests"--large, contiguous virgin forests with all the species intact--still exist in the lower 48 states.
Explanation:
All of the following are methods for non-native species to move into a new community EXCEPT:
Migration
Ballast water of ships
Pet trade
evolution
what activity makes water came to the surface?
Answer: Surface water is water located on top of the Earth's surface such as rivers, creeks, and wetlands. This may also be referred to as blue water. The vast majority is produced by precipitation and water runoff from nearby areas.
Explanation:
Which of these cars do you think is not accelerating?
A car stopped at a curb
A car slowing down at a stop sign
A car speeding up to pass another car
A car turning a corner
The high-energy batteries from the question above are used to power another very important reaction in photosynthesis. What is the reaction?
Answer:
This question is incomplete but it can be answered based on general understanding.
The reaction is CALVIN CYCLE OR LIGHT-INDEPENDENT REACTION
Explanation:
The high energy batteries being referred to in this question IS ATP. ATP is an energy-storing molecule produced in the first stage or reaction of photosynthesis called LIGHT DEPENDENT REACTION. Photosynthesis, which occurs in two stages, produces ATP molecule in the first stage as a result of the charging of ADP into ATP.
The ATP molecule, which serves as a high energy battery, is used to power the second stage of photosynthesis called LIGHT INDEPENDENT REACTION OR CALVIN CYCLE in order to yield sugars.
Plsss anyone wanna help?
Answer:
I believe E is the correct answer..
Explanation:
Look at a cell model online. What does it show you? It's organelles and it's shape.
the soil matter formed by decade organic matter is called
Answer:
the soil matter formed by decade organic matter is called humus.
Question 3
3
If you are convicted of a DUI, this event will have a serious impact on your family.
a) True
b) False
Explanation:
i thank it is a maybe I not sure
Describe the interaction between an enzyme and it’s substrate
Answer: The enzyme 's active site binds to the substrate. ... When an enzyme binds its substrate it forms an enzyme-substrate complex. Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur.
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If you were to examine a plant or animal cell under a microscope, what phase of the cell cycle would you most likely see? Explain your reasoning.
Answer:
Explanation:
During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).
If you were to examine a plant or animal cell under a microscope, you would most likely see the interphase of the cell cycle. This is the resting phase.
What is the cell cycle?The cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next. The cell cycle can be divided into two phases. They are as follows:
InterphaseM-phase (Division phase).During the interphase of the cell cycle, the cell undergoes normal growth processes with the replication of DNA in the synthesis phase. Chromosomes are observed in a little bit condensed state during the mitotic division.
Apart from this, cells do not undergo many series of alterations. It follows the path of rest, and hence it is known as the resting phase. Chromatin is somehow observed in a condensed state loosely distributed throughout the nucleus of the cell.
Therefore, the interphase of the cell cycle would you most likely see, when you were to examine a plant or animal cell under a microscope.
To learn more about the interphase of the cell cycle, refer to the link:
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Living organisms break down polysaccharides into?
Which of the following accurately describes the process of crossing over?
А
Crossing over occurs before replication and non-sister chromatids exchange gene segments to make new combinations of genes.
B
Crossing over occurs after replication and non-sister chromatids exchange gene segments to make new combinations of genes.
с
Crossing over occurs before replication and only sister chromatids exchange gene segments to make new combinations of genes.
D
Crossing over occurs after replication and only sister chromatids exchange gene segments to make new combinations of genes.
The statement that accurately describes the process of crossing over is that crossing over occurs after replication and non-sister chromatids exchange gene segments to make new combinations of genes. So, the correct option is B.
What is Crossing over?Crossing over is a process through which there is an exchange of genetic material between non-sister chromatids of a homologous chromosome.
After the replication process, the amount of genetic content gets doubled and arranged in the form of chromatids. Two chromatids of the same chromosomes are known as sister chromatids. And those two chromatids of homologous chromosomes are known as non-sister chromatids.
Therefore, crossing overs occurs after replication, and non-sister chromatids exchange gene segments to make new combinations of genes.
To learn more about Crossing over, refer to the link:
https://brainly.com/question/927405
A person has trouble coordinating muscle movements. Which two tissues could be injured?
O Connective; epithelial
O Epithelial; muscle
Nervous, muscle
O Cardiac; epithelial
Answer:
connective; epithelial
Explanation:
Explain how independent assortment occurs in cells and explain its importance
Answer:
Independent Assortment is the second law of inheritance
Traits are passed from parents to offspring independently of one another.
Independent assortment is random and occurs during Metaphase I of meiosis.
There are two possible alignments for the chromosomes.
Since the alignments are random and not assigned, genetic variation occurs.
Explanation:
right on edge 2021
A____needs a host to survive
Answer:
virus................
In general, why might ecologists be concerned when new invasion species arrive in an ecosystem?
Answer:
In general, why might ecologists be concerned when new invasive species arrive in an ecosystem? Like terrestrial environments, coral reefs can be damaged by invasive species. Reefs are also impacted by disease-causing bacteria, humans, and other biotic factors, or living parts of the ecosystem.
Explanation:
.
The cell wall gives the cells...
-Structure
-Energy
-Protein
-Photosynthesis
When you breathe out, carbon dioxide passes from the what
into the air.
Answer:
Lungs
Explanation:
This is when oxygen has been taken into the blood carbondioxide is then exchanged
Answer:
blood
When you _________, carbon dioxide and water pass from the blood out into the air.
Explanation:
what route does oxygen take as it enters the body?
Answer:
D
Explanation:
Which structures are part of the body's first line of defense against pathogens?
Answer:
Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens.
Explanation:
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The light dependent reaction takes place in the
Answer:
Thylakoid
Explanation:
each of a number of flattened sacs inside a chloroplast, bounded by pigmented membranes on which the light reactions of photosynthesis take place, and arranged in stacks or grana.
Energy-storing sugars are made during the __________ in photosynthesis.
Answer:
Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the energy-storage molecules ATP and NADPH. During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.
Explanation:
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Plants and other living things use photosynthesis to convert light energy into chemical energy, which is then released via cellular respiration to power the organism's activities.
How does sugar get its energy from photosynthesis?Plants use their leaves to capture light energy during photosynthesis. Water and carbon dioxide are converted by plants into a sugar called glucose using the power of the sun. Plants use glucose as a source of energy and to create other compounds like cellulose and starch.
Light, water, and carbon dioxide (CO2) are converted into energy and sugar inside the chloroplasts of leaves (glucose). Sunlight is transformed into energy-storing molecules in the plant cells using water. These molecules' energy is subsequently utilised to convert CO2 into glucose.
To learn more about Photosynthesis refer to:
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Which statements accurately describe the structure of the cell membrane? Check all that apply. The cell membrane is a single layer of phosphate molecules and lipids. The cell membrane is a double layer of phosphate molecules and lipids. The cell membrane has protein channels that are partly inside and partly outside the cell. The cell membrane has protein channels that are entirely inside the cell. The cell membrane’s protein channels only let certain molecules pass through. The cell membrane’s protein channels let all molecules pass through.
Answer:
The cell membrane is a double layer of phosphate molecules and lipids.
The cell membrane’s protein channels only let certain molecules pass through.
The cell membrane has protein channels that are partly inside and partly outside the cell.
Explanation:
Answer:
The cell membrane is a double layer of phosphate molecules and lipids.
The cell membrane’s protein channels only let certain molecules pass through.
The cell membrane has protein channels that are partly inside and partly outside the cell.
Explanation:
Why is oxygen important to humans? *
A. It is the only gas in Earth's atmosphere.
B. Our cells require oxygen gas to break down the food we consume and provide the
energy we need to live.
C. It's not important - humans can breathe in multiple gasses for energy.
Answer:
b is the answer
Explanation:
b is the answer
James wants to know which brand of shoe will help him run faster. He thinks the more expensive shoe should be the one that helps him run faster. He tries three different types of running shoes. He runs one lap on the track with pair of shoes ( shoe A) and times how long it takes. He rests for 15 minutes. Then, he tries on another of shoes (shoe B) and runs a lap around the track, while timing how long it takes. He rests for 15 minutes before repeating the lap with the last brand of shoes (shoe C).
Which type of investigation did he complete ?
a.)experimental
b.)descriptive
c.)observational
Answer:
C.) Experimental
Explanation:
He conducts test to see which shoe helps him better, in so doing a experimental investigation
5) One of the following is used for the formation of nuclear lamina?
A) Intermediate filaments.
B) Microtubules.
C) Microfilaments.
D) All of them.
a
The cell membrane of the red blood cell will allow water, oxygen, carbon dioxide, and glucose to enter and leave the membrane. Why is this function of the cell membrane important?
Answer:
All substances that the cell needs(such as water and other nutrients) enter through the cell membrane. Waste products of the cell come out through the cell membrane. The cell membrane prevents harmful substances from entering the cell and keeps useful substances inside the cell.
In the picture how does the thermal energy definitely flow?
Answer:
from the bears to the snow
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