An individual running a marathon may experience periods of oxygen deprivation that can lead to
A. anaerobic respiration in muscle cells, forming lactic acid
B. acrobic respiration in muscle cells, generating glycogen
C. anaerobic respiration in liver cells, producing glucose
D. aerobic respiration in liver cells, synthesizing alcohol
Answer:
A. anaerobic respiration in muscle cells, forming lactic acid
Explanation:
Running marathon is a vigorous exercise, which often leads to excessive use of oxygen in the cells of the athlete. This causes the cells to switch from the aerobic (with oxygen) to the anaerobic (without oxygen) mode of respiration. This anaerobic respiration produces a product called LACTATE OR LACTIC ACID.
The lactic acid becomes excessive and gets stored in the muscle cells of the athlete. This often leads to cramps, muscle pulls etc. during the marathon. Therefore, an individual running a marathon may experience periods of oxygen deprivation that can lead to anaerobic respiration in muscle cells, forming lactic acid.
I NEED HELP ASAP !!!!!!!!!!!
PLEASE HELP WITH SOME BIOLOGY ASAP!! THANK YOU AND GOD BLESS
Scientists often say that structure determines function when discussing biologically important molecules. Enzymes fit this description because...
A. Enzymes are uniformly shaped and versatile. The shape never changes.
B. Enzymes exist in many shapes and sizes. The shape of the enzyme is irrelevant and they are used interchangeably.
C. Enzymes are similar to other molecules and can mimic their functions.
D. Enzymes are a specific shape that helps catalyze specific reactions. Once the shape changes, the efficacy of the enzyme changes.
Answer:
D
Explanation:
the shape of the enzyme helps determine the chemical reaction it will be a part of
How do great rivers, such as the Nile, the Amazon and the Mississippi affect the salinity of the oceans they flow into?
Answer:
They keep the salt water in the oceans at bay.
Explanation:
Draw an X on the template in the space provided for your response to indicate the phase during which the replication of damaged DNA would occur.
Answer and Explanation:
Replicating DNA is delicate and can breakdown in the process of duplication. The source of DNA rearrangements is broken chromosomes. These chromosomes can alter the cell genetic program. These modifications can activate a growth advantage in a single cell in our body—tumor rise when that cell remains to divide. Cells have defense mechanisms to protect us from these harmful actions. In the eukaryotic cell cycle, chromosomes segregate during the M phase and duplicate during the S phase. The S phase is known as the phase of DNA synthesis, while the M phase is known as the mitosis phase. Any problem with DNA replication activates a checkpoint during the S phase. A checkpoint is a flow of signaling events that places the phase on hold till the issue is resolved—the checkpoint of the S phase work as a surveillance camera. The main purpose of the replication is to produce an identical double strand. Each strand in a DNA molecule functions as a template for a new DNA strand.
Read the following sentence from the section "The
Satellites Layer."
But in the thermosphere, the
temperature can reach up to 4,500
degrees Fahrenheit.
What does the author mean by "up to 4,500
degrees"?
A
It cannot be any cooler than 4,500 degrees.
B
It has to always be at least 4,500 degrees or
hotter
С
It can get as hot as 4,500 degrees, but not
any hotter.
D
It is 4,500 degrees most of the time.
Answer:
The particles that cause the aurora are energized in the magnetosphere, that is, above the atmosphere. If they don't reach 10,000 volts, they will still cause auroral light. The lower energy won't change the wave length of the light, but will cause the light to be dimmer.
Explanation:
Wich factor drives surface ocean currents wind energy solar energy
Select the equations that are equal to each other.
325-139
154+32
287-108
208-182
98+88
Answer:
325-139
154+ 32
98+ 88
Explanation:
325- 139= 186
154+ 32= 186
287- 108= 179
208- 182= 26
98+ 88= 186
Under which of the following circumstances would natural selection not operate on an organism?
A) if there is no difference in fitness between individuals in a population, then natural selection will not operate.
B) if an individual in a population has not adapted, then natural selection will not operate
C) if more individuals are born than can survive, then natural selection will not operate
D) if there is no reason for a spiecies to evolve, then natural selection will not operate
Which statement about the use of independent variables in controlled experiments is correct?
1.
A different independent variable must be used each time an experiment is repeated.
2.
The independent variables must involve time.
3.
Only one independent variable is used for each experiment.
4.
The independent variables state the problem being tested.
Answer:
3. Only one independent variable is used for each experiment.
Explanation:
A controlled experiment is an experiment in which one variable is changed or tested at a time, while others are kept constant. In an experiment, one of the two major variables is INDEPENDENT VARIABLE. Independent variable is the variable that is changed or manipulated in the experiment.
In a controlled experiment, only one independent variable is used at a time i.e. ONLY one variable is changed or manipulated for each experiment. This is to ensure the validity of the experiment.
List 2 things that bacteria cells DO NOT have in common with other Living organisms?
Answer:
Bacteria lack many of the structures that eukaryotic cells contain. For example, they don't have a nucleus. They also lack membrane-bound organelles, such as mitochondria or chloroplasts. The DNA of a bacterial cell is also different from a eukaryotic cell.
Answer:
they lack on membrane- bound organelles and they don't have a nucleus
Explanation:
hope this helps
If even light can´t escape through black holes, how is it pictured?
Answer:
Light cannot escape from within a black hole, but the matter falling into a black hole can get pretty hot before it falls in. This heating is due to the fact that matter accelerates near black holes. matter emits lots of light and other radiation as it falls into a black hole.
I hope this helps you!
Eating animals is an example of biotechnology.
O True
O False
Which are infectious diseases? Check all that apply.
[ 1]cancer
[ 2]cholera
[ 3]typhoid
[ 4]malaria
[ 5]HIV/AIDS
[ 6]heart disease
[ 7]tuberculosis
Answer:
2,3,4,5,7....
Explanation:
The infectious diseases here are Cholera, Typhoid, Malaria, HIV/AIDS, Tuberculosis.
What is infectious disease ?Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful.
What causes infectious diseases in humans ?Infectious diseases in humans are caused by microorganisms including: Viruses that invade and multiply inside healthy cells.
Learn more about Infectious diseases here: brainly.com/question/2104500
#SPJ2
One cell phone contains many metals, including about 25 g
of aluminum, about 15 g of copper, about 0.03 g of gold,
and about 0.3 g of silver.
Based on this information, which resource is most likely used to make cell
phones?
A. A large river and its streams
B. An old-growth forest of tall trees
C. A farm with sheep and cattle
D. An underground deposit of minerals
The correct answer is D. An underground deposit of minerals.
Explanation
Metals are minerals, that is, they are natural substances that are normally in a solid-state. These resources are generally the product of physical-chemical processes that occur in the underground layers of the earth that transform different materials into these minerals. These minerals are obtained through mining, a process in which the earth's crust is broken until it reaches the place where these minerals are housed and in this way takes them to the surface to use them in the manufacture of different objects. Therefore, the correct answer is D. An underground deposit of minerals.
Because Earth does not get significant inputs of matter from space, its essentially fixed supply of
nutrients must continually be recycled to support life.
O False
O True
Need helping naming
which component is most dispersed in cell
Answer:
protein lipid is most dispersed in cell
Answer:
Dispersed cells represent a distinct stage in the transition from bacterial biofilm to planktonic lifestyles
They basicaly disperse plankton. im probably wrong about this.
Drugs are substances that cause a change in a persons physical not mental state
Answer:
certain drug mess up the mental state as well... not all but some do...
Explanation:
Answer:
Drugs cause a change in someone's physical and mental state.
Explanation:
Drugs can lead to changes in your brain, they can affect your mood and so much more. That statement is false
Compound Light Microscopes
1. Why would a scientist want to stain a specimen before observing it
with a compound light microscope?
A. To study the movement of the specimen
B. To increase the visual contrast in the specimen
C. To blur differences between structures of the specimen
OD. To increase the magnification power of the microscope
Check Answer
Answer: The correct option is B.
To increase the visual contrast in the specimen
Explanation:
Compound microscope is a microscope that consist of large lenses to enlarge images. Scientist normally stain specimen before they observed it under compound microscope because it will visualise the specimen and make some component of it to be visualise well. Some metabolic processes can also be differentiated and observed well.
WILL GIVE BRAINLIEST!!! FORENSIC SCIENCE
Investigators discover a body of a hiker in a dense forest. Analysis shows considerable insect activity on and around the body and apparent changes to the victim's abdomen. Which of the following details can they conclude?
The victim died at least two hours ago.
The victim died at least 12 hours ago.
The victim has been dead for over a day.
The victim has been dead for at least four days.
How variation leads to one clover being better suited to their environment than the other?
Answer and Explanation:
Clovers are plants that can contribute to livestock procedures to soil stabilization. Clovers increased forage yield, soil improvement and biological nitrogen fixation, land beautification, an extension of the growing season, and improved forage quality. Clover species have different characteristics. Some species are more tolerant of soil conditions, climate conditions and management regimes than other species. Clovers may also differ concerning the benefits they provide, such as if forage growth is desired at a particular time, one clover might be a good choice than another. It is important to keep in mind the traits of numerous clovers when the planting decisions are made. Other factors such as climate condition, soil condition and grower objectives are also essential factors influencing which clover will be the best plantation choice. Annual clovers complete their life cycle in one year. Annual clovers do not reproduce by vegetative propagation; they only reproduce from seed.
Describe the connection between soil quality and water quality.
Answer:
The link between some of the given contexts is characterized below.
Explanation:
The soil, as well as the water, have been strongly interlinked. Implementation of biodiversity conservation just to focus on improving soil structure also strengthens water supplies. Healthy soils serve various tasks, including certain strengthening infiltration, maintaining water for irrigation, utilizing heavy metals, quantization stormwater runoff, as well as surface hardness.
A forest ecosystem can support a limited number of bears. This is because
Explanation: if there is too much the things the bears eat die quicker and then when they die the bears will start dyeing and if there is too little bears the thing bears eat will rise
A__ or change in a gene causes the disease hemophilia in 30% of cases of the disease.
Answer:
Hemophilia A is caused by disruptions or changes (mutations) of the F8 gene located on the X chromosome. Approximately 70% of cases are inherited as an X-linked recessive trait. In the remaining 30%, cases occur spontaneously (i.e. new mutation) without a previously family history of the disorder.
Explanation:
hope this helps
Drag the tiles on the correct box
Answer:
1. Rocks in Earth's mantle and crust melt due to extreme temperatures and turn into magma.
2. Hot magma erupts as lava above Earth's surface during a volcanic eruption.
3. Being exposed to a cooler temperature, the lava starts to cool down quickly.
4. The lava solidifies into a rock formation with a fine-grained or smooth surface.
Explanation:
Igneous rocks (also called magmatic rocks) are rocks formed in the process of solidification of magma or lava. Igneous rocks formed above Earth's surface are referred to as extrusive, while those formed below the Earth's surface are referred to as intrusive.
There are several types of extrusive igneous rocks: andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff.
When lava cools down too quickly, volcanic glass is created.
11. Diabetics are often required to monitor their blood glucose levels to determine
if/when they require a shot of insulin. Under what conditions should diabetic
individuals give themselves a shot of insulin?
Answer: When blood glucose levels rise beyond the normal level (hyperglycaemia), an insulin injection is needed.
Explanation: This applies to insulin-dependent diabetes, i.e. Type I, where the medical diagnosis is insulin insufficiency. The situation with Type II diabetes is less straightforward.
Insulin is required to enable glucose to be distributed as required, taken up by cells as they need it. Glucose is constantly produced. Without insulin, little glucose is removed from the blood, and the blood glucose concentration rises. The symptoms of this hyperglycaemia include unusual thirst, frequent urination and tiredness. Unless very high levels are reached this may not be severe enough to be noticed, which is why diabetics monitor their blood glucose levels - to avoid those severe episodes. If their blood glucose exceeds normal levels, an insulin injection is needed
30 points
Read the section "Brains Under Construction."
Select the paragraph from the article that suggests
specific regions of the brain can perform multiple
functions.
A. Let's break that down, starting with preteen
and teen behaviors. The brain region that tells
us we shouldn't eat chips all the time and
helps us resist that urge is the last to
mature. Called the prefrontal cortex, this
region doesn't fully develop until we are in our
early 20s.
B. "Most of our complex brain functions happen
in the prefrontal cortex, says Reichelt. This
includes complex math and reading, but she
notes that it also includes "how to assess risky
behavior."
C. In fact, these regions are even more sensitive
when we are young. That's because of a
natural chemical called dopamine. Dopamine
is sometimes called the "feel good chemical,
and it lifts our mood when we experience
something rewarding. And it is especially
active in adolescent brains.
D. The teen brain, thus, has two strikes against it
when it comes to resisting junk food. 'It has a
heightened drive for rewards and reduced self-
regulation," says Reichelt.
Next
Back
Answer:
yay
Explanation:
its A
What energy transformation occur in a hydroelectric power plant
Answer:La energía hidroeléctrica es aquella que se genera al transformar la fuerza del agua en energía eléctrica.
Explanation:
Hydroelectric energy is that which is generated by transforming the force of water into electrical energy.
Answer:
its D kinetic energy to electrical energy
Explanation:
3419059779 ppppppp1234
Answer:uh- Thank u for the free points kind sir or ma'ma also can u plz give me Brainlist have an good day! <3
Explanation:
