Spindle fibers are aggregates of microtubules that move chromosomes during cell division. Microtubules are protein filaments that resemble hollow rods. ... The spindle apparatus of a cell is comprised of spindle fibers, motor proteins, chromosomes, and, in some animal cells, microtubule arrays called asters
HelpASAP! TELL ME IF AM RIGHT, TY
Answer:
Mesophyll cells.
Explanation:
Transpiration is the evaporation of water at the surfaces of the spongy mesophyll cells in leaves, followed by loss of water vapour through the stomata . Transpiration produces a tension or 'pull' on the water in the xylem vessels by the leaves. Water molecules are cohesive so water is pulled up through the plant.
This is for my biology class but I think Health experts can help too :D
9. When your muscles do not get enough oxygen during a strenuous workout, glucose cannot be broken down properly.
a. What chemical builds up in the muscles and causes pain?
Do some research about this build-up.
b. What can you do to prevent it?
c. How can deep breathing help reduce it?
d. How can water help reduce it?
Answer:
a. lactic acid, b. stretch and drink lots of water, c. oxygen is needed, d. to stay hydrated?
Explanation:
a. i believe it's called lactic acid? when you don't get enough oxygen to the muscle, it starts to cramp up
b. you can do stretches to ease up tense muscles
c. because it gets oxygen to your muscles
d. to hydrate, helps to keep the muscle cells to relax and more hydrated, becoming less irritable.
i hope this helped :)
Answer: during exercise, lactate builds up in muscles and causes a burning pain in the affected muscle
Explanation: Exercise increases the energy needs of the muscles used. Increased energy generation requires increased oxygen. If energy demands exceed the body’s ability to supply oxygen, muscle tissues switch from aerobic to anaerobic respiration.
In anaerobic respiration pyruvate is reduced to lactate. Energy production is <10% as efficient as aerobic respiration, so it must be at a high rate.
C3H4O3 + 2NADH + 2ADP + Pi —> C3H6O3 + 2NAD+ + 2ATP
Reducing intensity of exercise or taking breaks can give the body a chance for recovery. Aerobic fitness will increase ability to supply oxygen.
After exercise, lactate is converted back to pyruvate and to replenishing glucose via gluconeogenesis. The enzyme lactate dehydrogense catalyses the pyruvate/lactate reaction in both directions.
The cumulative effect of exercise and converting lactate back to pyruvate creates an ‘oxygen debt’ which is why we breathe heavily after exercise.
Exercise can lead to dehydration (e.g. sweating) which decreases metabolic efficiency. Additional water intake before during and after exercise prevents dehydration.
It has also been shown that light exercise in the recovery phase after strenuous exercise improves the rate of lactate removal
Menzies et al. Blood lactose clearance during active recovery after an intense running bout depends on the intensity of the active recovery. J. Sports Sci 2010; doi 10.1080/02640414.2010.481721
What are the different forms of a gene called?
Answer:
an allele is different forms of same gene
The motion of a Foucault pendulum provides evidence that Earth
The motion of a Foucault pendulum provides evidence that Earth rotates. A further explanation is provided below.
Foucault's pendulum demonstration seems to be a very confined, readily produced experimentation with a straightforward, compelling, as well as accessible outcome including to non-scientists.The pendulum moves together in-plane perpendicular somewhere at northern or southern poles.Because unless we ignore the knowledge then the Earth has also been rotating in-universe, this same plane does seem to traverse 360° when the globe completes one full circle.
Thus the above response is correct.
Learn more:
https://brainly.com/question/8576461
Write the strand of DNA that would bind with this strand: ATCGTCAGG
Answer:
TAGCAGTCC
Explanation:
Why is the trend in atmospheric carbon dioxide concerning?
Answer:
b
Explanation:
Answer:
This causes an increase in global warming.
Explanation:
Lactic acid fermentation is a form of ____________ respiration.
1. Aerobic
2. Anaerobic
3. Photosynthesis
4. Protein
Answer:anaerobic
Explanation:
If you found a mysterious object and wanted to find out if it was a living thing, how would you set up your investigation?
A. look for movement
B. use a microscope and look for water
C. use a microscope and look for cells
Answer:
C. use a microscope and look for cells
If Hh represents two alleles, what percentage of gametes produced will have the H allele?
A. 25%
B. 0%
C. 100%
D. 50%
Answer: 50%
Explanation: because it’s one H instead of 2 the 2 Hs equal 100 and 1 H is 50
Answer: The correct answer is D. 50%
Explanation: Confirmed correct
Which weather forecast would be accurate based on this weather map?
Answer:
Wether is not accurate and if this was a real question you need to put a pictue in it.
Answer:
The answer is
A).Rain is expected in Billings.
:)Explanation:
Can someone help me out on this
Answer:
C. Rr x Rr
Explanation:
please help me with this it’s 6th grade word and is due today
Answer:
B
Explanation:
brainlest please oh please
ASAP
help
due rn
and thankyou
Fossilized evidence of Earth’s first forms of life would consist of?
Answer:
prokaryotes from the precambrian
Explanation:
DNA is double-stranded, while RNA is single-stranded. How are their forms related to their functions?
Which situation would deplete freshwater
Answer:
Water demand is greater than its renewal or recharge rate.
Explanation:
What are pathogens?
Please help me
Explanation:
Any organism or substance, especially a microorganism, capable of causing disease, such as bacteria, viruses, protozoa or fungi is pathogen.
Hope it will help :)❤
Answer:
Explanation:
^^shoyo hinata here!!!!!
(/^-^(^ ^)/
biology, a pathogen in the oldest and broadest sense, is any organism that can produce disease
What happens if mitosis becomes unregulated
Answer:
if mitosis is unregulated, cancer cells could multiply continuously or create defective daughter cells.
Which type of weathering most often occurs in windy environments?
abrasion
carbonation
hydrolysis
root action
Answer:
Abrasion
Explanation:
6 CO2 + 6 H2O → 6 O2 + C6H12O6
Answer:
photosynthesis equation?
Explanation:
i dont know what the question is, but...
6 CO2 + 6 H2O → 6 O2 + C6H12O6 = photosynthesis equation
Logistic growth describes how a population's growth is
Answer:
In logistic growth, population expansion decreases as resources become scarce, and it levels off when the carrying capacity of the environment is reached. The logistic growth curve is S-shaped.
Explanation:
Hope this will help you :)
the consequences by hunting leather backturtle
Answer:
Dune vegetation would miss a significant source of nutrients if sea turtles go extinct and would not be as stable and not large enough to support the dunes, resulting in increased erosion.
Explanation:
While their range is wide, due to extensive egg collecting and bycatch fisheries, the numbers of leatherback turtles have decreased dramatically over the past century.
describe 4 ways a temperature increase of only 1c (global warming) would impact humans and / or ecosystems
Answer:
1. Food cycle- With Global Warming on the rise the food cycle is being thrown off due to some animals dying off because they aren't getting used to the extreme sudden heat this can also affect humans especially if we seafood. Global warming affects the ocean too killing off a lot of sea creatures that we eat sometimes like Shrimp for example. Study shows that Global Warming is heating up the ocean cooking the live shrimp in the ocean.
2. Timing of seasonal changes- Study shows that places that don't get hit by snowy weather in the Wintertime are getting pounded by winter storms. A perfect example of this is East Coast getting hit by wintery weather while West Coast sees some high temperatures with no moisture this is caused by global warming.
3. Extinction Risks- Another study shows that some animals such as elephants, Siberian Tigers, red Pandas are all on the Endangered species list due to the sudden change in the weather because of Global Warming which brings the extinction-level to an almost high rate. People all around the world are trying all they can to prevent animal species to go extinct and as I mentioned before if a species goes extinct it'll throw off the food cycle.
4. Range shifts- Since the temperatures are changing dramatically because of global warming it is causing a lot of species to migrate to a new area this is their way of surviving instead of dying off this can also disrupt the food cycle because if a certain species a predator perhaps moves to a different area the prey species will increase and those predators that migrated to a new area is causing a lot of habitat changes to another species its like natural selection and can cause a pretty bad change
So that is why people are up and arms about global warming and why they want to hurry up and come up with a plan to stop global warming or figure out a way to cool down the Earth because it'll not only end in species' extinction but it can lead to Human extinction.
Hope this helped :)
Please help it’s urgent!!!
Which is the BEST conclusion Calvin can draw based on the results of his investigation?
A
The molecules in the fork absorbed the heated molecules in the water through osmosis.
9
B
The heated water molecules collided with the fork causing the heat to be transferred by conduction.
с
The hotter water molecules at the bottom rose to the top to heat the fork by convection.
D
The heated molecules traveled from the microwave by radiation to heat the fork.
Answer:
B
Explanation:
Are there any parts of the human body that get oxygen directly from the air and not from the blood? i don't pay attention in biology
Answer:
The cornea.
Explanation:
The cornea is the only part of the human body that has no blood supply, it gets oxygen directly through the air. Also, did you know that the cornea is the fastest healing tissue in the human body, therefore, most corneal abrasions will heal within about 24-36 hours.
I hope this helps you! Stay safe <3
What information is contained in DNA?
Answer:
DNA stores biological information in sequences of four bases of nucleic acid — adenine (A), thymine (T), cytosine (C) and guanine (G) — which are strung along ribbons of sugar- phosphate molecules in the shape of a double helix.
Explanation:
Answer:
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction.
Explanation:
I did copy off internet :P
Fill in the blanks:
DNA is composed of sugar, phosphate and four
(A, T, G, C). During
transcription, DNA is made into a molecule of
which will travel to the
in the cytoplasm, Here, three bases, called a
will
determine what
acid is added to the chain. This chain will fold into a
Answer:
DNA is composed of sugar, phosphate and four NITROGEN BASES (A, T, G, C). During
transcription, DNA is made into a molecule of RNA which will travel to the ?PROTEIN SITE?
in the cytoplasm, Here, three bases, called a CODON, will determine what acid is added to the chain. This chain will fold into a TERTIARY STRUCTURE.
Explanation:
I'm not too sure about "protein site," but I hope the rest helps!
Answer:
DNA is composed of sugar, phosphate and four nitrogen bases (A, T, G, C). During transcription, DNA is made into a molecule of RNA, which will travel to the ribosomes in the cytoplasm. Here, three bases, called a codon, will determine what amino acid is added to the chain. This chain will fold into a protein. This shape of this molecule determines how it functions.
Changes in the DNA code are called mutation and they can cause a protein to not function properly. A single change in the DNA of the hemoglobin gene will cause sickle cell anemia.
Explanation:
Adenine (A), Cytosine (C), Guanine (G), and Thymine are nitrogen bases. A and T pair together while C and G pair together. In DNA/RNA pairings, A pairs with Uracil (U). Transcription happens in the RNA, which is sent from the nucleus to the ribosomes (where protein is made). The three bases are called codon, their three base pairing is called an anticodon.
DNA gets mutated and this causes changes in the code. Sickle cell anemia occurs in the hemoglobin.
( Added the second part too ;) )
BRAINLIEST! PLEASE HELP!
What causes a wave's path to bend when it bounces off the surface of a material?
A. Refraction
B. Reflection
C. Absorption
D. Transmission
Answer:
refraction.
Explanation:
refraction is the bending of light whereas reflection is bouncing of the light.
what is the role of a water lillies in the water cycle?
Answer:
To absorb the any bacteria and make it water fresh.
Beside being pleaseing to the eye,water lilies do a great deal to maintain the well being of the ponds they inhabit.For one they provide shade to keep the water temperature during the summer months.