What are the set of microtubles which move to opposite ends of the cell to aid in cell division called
Answer:
A centriole
Explanation:
is a small set of microtubules arranged in a specific way. There are nine groups of microtubules. When two centrioles are found next to each other, they are usually at right angles. The centrioles are found in pairs and move towards the poles (opposite ends) of the nucleus when it is time for cell division.
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question from the four answer choices provided.
2
Question 11
In a study of physical endurance, researchers observed significant increases in the heart rates and breathing rates
exercise.
Which statement best explains the increase in the heart rate and the breathing rate during exercise?
3
Answer
A
The water concentration in the blood increases.
B
Body cells require increased oxygen as energy is expended.
с
Muscle cells increase in temperature and require fluid to reduce the temperature.
D
An increase in muscle activity causes increases in glucose levels in red blood cells.
5
Question 11
Previous
6
7
Answer:
B
Body cells require increased oxygen as energy is expended.
A process which is essential to the whole species but not to an individual
member of that species is:
1. Digestion
2. Growth
3. Reproduction
4. Development
what kind of animal is this?
Answer: Desert bandicoot
Explanation:
The bond that joins two amino acids together is known as
The small intestines of cows are similar in general structure and function to the small intestines of humans. In a cow, damage in the wall of the small intestine reduces the number of villi due to which the cow loses weight and becomes weak. What could be the reason for weight loss and weakness?
Answer:
Low absorption of nutrients into the bloodstream from digested food.
Explanation:
This question is regarding the small intestine of a cow, which is said to be similar in general structure and function to the small intestines of humans. The small intestine is an organ found in the digestive tract of the cow or human in this case. Its primary function is to absorb the nutrients from the food, that has undergone series of digestion, into the bloodstream.
The small intestine is able to do this with the aid of the finger-looking extensions found on its wall called VILLI. The villi further contains MICROVILLI, which together helps the small intestine absorb nutrients into the blood. Hence, in a case whereby damage in the wall of the small intestine of the cow reduces the number of villi, resulting in weight loss and weakness.
This damage to the intestinal wall will cause a disruption in the absorptive function of the small intestine due to the reduced number of villi. Therefore, THE INABILITY OR LOW ABSORPTION OF NUTRIENTS INTO THE BLOOD THAT THE DAMAGE CAUSES is responsible for the weight loss and weakness in the cow.
The reason for the weight loss and weakness is as a result of decreased
absorption of nutrients from digested food.
The villi is a finger-like structure found in the small intestine which helps in
the absorption of nutrients from digested food into the bloodstream. When
the villi are reduced, the absorption of nutrients are reduced.
This thereby brings about weight loss as a result of nutrient deficiency
caused by low absorption into the bloodstream of the animal(cow)
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Which part of an atom has a positive charge?
proton
neutron
electron
nucleus
Answer:
proton
Explanation:
How do the Earth, the Sun, and the moon interact to influence the time patters of tides?
Answer:
Explanation:
When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides, both commonly called spring tides. A similar situation occurs between the Earth and the sun.
Help mememmememememmemememem
Answer:
B
Explanation:
since the impulse is moving form Q to P ...Q will be the receptor and P is the relay neuron which will transfer the impulse to the next neuron
During _____________, molecules like glucose, use a protein channel to enter or leave the cell.
active transport
facilitated transport
ionic pump mechanisms
i'd say during facilitated diffusion this happens but it's not an option so i'd have to say facilitated transport then, i hope i'm right and i hope this helps!! :)
Select all that apply
Which of the following countries exclusively use the metrie system?
France
Canada
England
United States
Answer:
france uses the metrie system
2 points
What makes a water molecule polar?*
0 it has neutrons
oxygen has a stronger attraction for electrons than hydrogen
hydrogen has a greater pull on protons than oxygen
0 it has 3 atoms
Answer:
hydrogen has a greater pull on proteins than oxygen
Explanation:
Protons have positive electricity, electrons have negative electricity, and neutrons have no electricity
How are ammonia, nitrite, and nitrate levels in an aquarium correlated with one another
Answer:
Ammonia, nitrite and nitrate at higher levels are toxic to fishes in the aquarium.
Explanation:
Ammonia,nitrates and nitrites are all byproducts gotten from organic wastes which is biodegraded in the aquarium. These byproducts are gotten from fish and plant wastes, uneaten algae , bacteria e.t.c. There are bacterias in the aquarium that help to break down nitrogenous wastes in the aquarium.
Therefore, the waste from fish and plants are breakdown by bacteria into ammonia.
Ammonia at high levels are very toxic to fishes. Then the nitrifying bacteria then help to convert ammonia to nitrite.
Nitrite also at high levels is very toxic to fishes in the aquarium.
Nitrite is also converted to nitrate by nitrifying bacteria.
Nitrate is not very toxic and it is use by algae or plants for growth in the aquarium.
Aerobic respiration and photosynthesis are both
Answer:
Aerobic respiration and photosynthesis are both part of a cyclic process of biochemical reactions. Photosynthesis requires the products of aerobic respiration (carbon dioxide and water), while aerobic respiration requires the products of photosynthesis (glucose and oxygen).
Explanation:
Hope this helps u
Crown me as brainliest:).
Is NPQ natural or is it something that the scientist made up? I
Answer:
something a scientist made up
Explanation:
9. DNA contains the base______
while RNA contains the base________
instead.
10. Sex-linked traits appear more frequently in________.
11.A Goat has 60 chromosomes in its body cells. What is the haploid number?
Answer:9: dna contains the base T while RNA contains U
Explanation:
A student is looking at a cell under a microscope. Which organelle tells the student that she is looking at a plant cell and not an animal cell?
Answer:
Explanation:
1. Cell wall
2. central vacuole
3. chloroplast
Answer:
Large vacuole
Explanation:
I think if not im sorry!!
Helppppppppp!!!!!!! I don’t know any of this!
The answer is Polysaccharide, hope this helped :)
An ecosystem could probably survive without _____.
Snowy weather or such cold times would leave most ecosystems better off.
A textbook weighs 3.2 lbs. How much is that in grams?
Answer:
1451.5 grams
Explanation:
Answer:
1451.5 grams :)
Explanation:
What is the result when a single cell reproduces by mitosis?
two cells with genetic material identical to the parent cell
two cells with half the genetic material of the parent cell
four cells with half the genetic material of the parent cell
four cells with genetic material identical to the parent cell
Answer: The answer is two cells with genetic material identical to the parent cell.
Explanation: I am also studying this in class and we went over many instances where this question was brought up and the correct answer is four cells with genetic material identical to the parent cell because besides the fact that when you reproduce one cell you get two cells, (which makes logical sense from both a science and a math standpoint) you always have identical DNA to the parent cell and you never get half of it or else it would mess up the whole reproductive process.
The result when a single cell reproduces by mitosis is TWO cells with genetic material IDENTICAL to the parent cell.
Mitosis is a type of cell division by which a parent cell divides to produce two genetically identical daughter cells.
Conversely, meiosis is a type of reductional cell division that produces four daughter cells (gametes) from one parent cell. These cells have half of the genetic material as the original parent cell.
Mitosis divides into four stages: prophase, metaphase, anaphase and telophase.
In conclusion, the result when a single cell reproduces by mitosis is TWO cells with genetic material IDENTICAL to the parent cell.
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Compare a daughter cell to the mother cell after interphase but before prophase step.
Answer:
Explanation:
This chart may help. The daughter cell will be an identical copy to that of the mother cell.
13. Radha's mother makes fluffy idlis, everyone likes them.
a) How does idli batter become soft?
b) What are the organisms involved in it?
Answer:
a)by the process of fermentation
b) organism involved in it are yeast
A man and a woman both have blood type AB. What is the probability their child will be blood type B?
Answer:
25%
Explanation:
you can solve this with a punnett square as well :)
what would need to change in order for mars atmosphere to support human life?
Answer: successfully terraform Mars, the atmosphere would need to be raised enough so that humans could walk around without spacesuits. But although tripling the Red Planet's atmospheric pressure might sound like a lot.
Explanation: it's only one-fiftieth of the CO2 necessary to make the atmosphere habitable to Earth creatures.
What is the average speed of an animal if it runs 180 meter in 10 seconds? * 1 point
Answer:
In 1 second it runs 18 meters
Explanation:
If it takes 10 seconds to run 180 then divide both sides by 10 to get one second which is 18 meters one second
Hope this helps!
WILL GIVE BRAINLIEST!!!!!
This type of succession happens after a glacier has receded or a new volcanic island forms. There is no previous plant life or soil available.
Tertiary succession
Primary succession
Quaternary succession
Secondary succession
Answer:
This is primary succession. I hope this helps!
I need help please
I need help
I need help
Choose the best example of an observation we might make of an occurrence where change is gradual and not perceptible in minutes or even hours.
A)Trees losing their leaves in the fall.
B) Fall leaves drifting on a pond.
C) Fall leaves burning in an incinerator.
D) Leaves changing color in fall.
Answer:
D
Explanation:
got it right on the quiz
Please help!
Match each soil horizon to the description of its formation.
Answer:
A O B C
Explanation:
Answer:
Explanation:
HORIZON B: undergoes the most change, barely resembles parent material. HORIZON O: accumulation of organic material. HORIZON A: decomposed organic material mixes with highly weathered parent material. HORIZON C: parent material barely affected by soil formation process.