Answer:
Include any safety issues you need to be aware of. Answer: To focus a microscope using the high-power lens you have to use the focus adjustment knob but be careful because if you crank down too hard, you can damage the microscope and the slide.
Explanation:
Look through the eyepiece (1) and move the focus knob until the image comes into focus. Adjust the condenser (7) and light intensity for the greatest amount of light. Move the microscope slide around until the sample is in the centre of the field of view (what you see).You must be very careful when using the high power lenses so you do not jam them into the slide. Ocular Lens - The ocular lens, or eyepiece, magnifies the image.
During which period of time does a eukaryotic cell replicate its DNA?
A. The S phase of the cell cycle
B. Anaphase of mitosis
C. Prophase of mitosis
D. The G2 phase of the cell cycle
Answer:
A, The S phase of the cell cycle
Explanation:
The S phase is the phase of DNA synthesis
Four main categories of organic molescules.
Answer:
Most organic compounds making up our cells and body belong to one of four classes: carbohydrates, lipids, proteins, and nucleic acids.
Explanation:
hop it helps but i probably got it wrong
What molecule Contains nitrogen atoms
Answer:
organic amines contain nitrogen atoms, N, that are singly-bonded to at least one carbon atom.
Explanation:
vote brainlyest
2 What time of year would you visit the beaches of Argentina?
Answer:
To visit Argentina's beaches, remember that the seasons are reversed in the southern hemisphere; summer is from December to February, while winter is July through September. The best time of year to visit depends on where you go, what you want to do and whether you want to avoid the crowds
Which homeostatic process moves particles against a concentration gradient?
dynamic equilibrium
passive transport
osmosis
active transport
Answer:
Yes, the correct answers is D: active transport
Explanation:
got it right in edg 2020
hope this is of help :)
Answer:
D it’s the answer
Explanation:
Help wanted, if you could further explain that would help a lot too.
If the function of an aquaporin is inhibited, how would the transport of water into the cell be affected? (3 points)
A. Water molecules will no longer be able to cross the cell membrane.
B. Water molecules will move across the cell membrane at a much slower rate.
C. Water molecules will only be able to cross the cell membrane by active
transport
D. Water molecules will move across the cell membrane at a faster rate with late regulation from the aquaporin.
Answer:
D. Water molecules will move across the cell membrane at a faster rate with late regulation from the aquaporin.
If the function of an aquaporin is inhibited, water molecules will move across the cell membrane at a much slower rate. Thus, the correct option for this question is B.
What is the function of Aquaporin?The fundamental function of most aquaporins is to conduct the transport of water molecules across the cell membrane with respect to osmotic gradients that are significantly constructed by active solute transport.
Aquaporins are transmembrane proteins that remarkably form the channels and facilitate the rapid transportation of water molecules in both directions of the cell membrane.
If the function of an aquaporin is inhibited, the water movement is facilitated by diffusion also. So, a slow rate of water movement is carried out in the absence of aquaporins.
Therefore, water molecules will move across the cell membrane at a much slower rate, if the function of an aquaporin is inhibited. Thus, the correct option for this question is B.
To learn more about Aquaporins, refer to the link:
https://brainly.com/question/28170746
#SPJ5
What is the process by which heat moves through Earth’s mantle causing tectonic plates to move?
Question 9 options:
radiation
convection
plate faulting
continental drift
convection!
hope i could help ya
Some differentiated cells become senescent almost immediately, leaving the cell cycle and undergoing terminal differentiation. Other cells have a high need to proliferate in order to grow and repair the organ or tissue, so they do not enter senescence for a long period of time. Which cell type would be most likely to put off senescence and terminal differentiation so it could continue to replicate in order to grow and repair?
brain cells
lung cells
skin cells
heart cells
Answer:
skin cells.
Explanation:
for connexus friends
The cell that will most likely put off senescence and terminal differentiation so it could continue to replicate in order to grow and repair would be skin cells.
The skin is a tissue whose cells are constantly dividing to replace old, damaged, or worn-out cells.
Damaged, and worn-out cells are frequent on skin tissues because they directly interact with the environment, exposing them to mechanical, chemical, and other forms of damages.
Thus, the skin cells cannot afford to go into senescence or terminal differentiation due to the fact that they need to constantly divide and replace damaged ones.
More on mitosis and tissue repair can be found here: https://brainly.com/question/15690556?referrer=searchResults
A change in the sequence of a nucleotide in DNA could result in which of the
following?
A.) The end protein will be a different protein but there will be NO change in its
function.
B.) The end protein will be a different protein that could cause a change in its
function.
C.) The DNA would stop working.
D.)The end protein will be the same protein as before the change.
Answer: A
Explanation:
(A) A mutation is a small-scale change in the nucleotide sequence of a DNA molecule. A point mutation is shown but there are several other types of mutation, ... Replication errors can also lead to insertion and deletion mutations ... on function, but longer extensions might interfere with folding of the protein and so result in ...
If a carbon atom is bonded to two hydrogen atoms and two carbon atoms, what type of bond must exist between the carbon atoms?
single
double
triple
quadruple
A is the answer
Explanation:
i got it right
Answer:
A
Explanation:
1. I took test in edge.
2. If a carbon atom bonds with two hydrogen atoms, all of its bonds are already "used". (This is what my teacher said)
what does it mean if something undergoes a "mutation"?
1) State whether plants perform cellular respiration and explain why or why not.
2)Explain which cell would likely contain more mitochondria, a muscle cell or a skin cell. Use your knowledge of energy; mitochondria and their function to support your answer.
Answer:
1) plants use photosynthesis to produce glucose, but the use cellular respiration to release energy from glucose so yes they do perform cellular respiration
2) a muscle cell because mitochondria is the site of cellular respiration (releasing energy from glucose) and they need more energy for muscle contraction
what are pros and cons of using averages in biology
Answer:
Pros- Gives our brains something to refer to and Cons- need to remind ourselves that average doesn't equal all.
Explanation:
Because it's right.
List the four reasons why humans should protect ecosystems.
Answer:
Explanation:
Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes.
can someone help me?
Answer:
Herbivore
Explanation:
The grasshopper eats grass and does not seem to eat anything else in the food web, so it is a herbivore. Herbivores are organisms that eat plants, and since the grasshopper furfills this definition, therefore it is a herbivore. It is not a carnivore because carnivores do not eat grass. It is not a decomposer because it does not break down dead material. It is not an omnivore because it does not eat both plants and animals.
Please Help, I Am Very Confused By This Question. Photos Are Linked!
TRUE OR FALSE: The molarity of a flaccid plant is equal to the molarity of the solution. The molarity of a turgid plant is greater than the molarity of the solution. The solute potential of a turgid plant is lower than the solute potential of the solution. The molarity of an plasmolyzed plant cell is greater than the molarity of the solution.
Answer:
1. The first statement is true because water movement takes place until it reaches an equilibrium.
2. The second statement is false because the concentration inside the cell will be greater until water moves inside the cell.
3. The third statement is true because solute concentration is high outside.
4. The fourth statement is true because it loses water in a hypertonic solution.
What is the difference between diffusion and facilitate diffusion
Answer:
Diffusion is the passage of molecules from a high-concentration region of the molecule to a lower-concentration area of the molecule.
Facilitated diffusion is the passage of a molecule with the assistance of a protein channel or carrier from a region of high concentration to an area of lower concentration.
Hope this helps!
2 The body has to always maintain a constant internal environment. For example, the hormones
aldosterone and antidiuretic hormone (ADH) help regulate the balance of bodily fluids by causing the
kidney to excrete or retain fluids and electrolytes. This constant regulation of hormones and bodily fluids
to maintain balance is an example of which cellular process?
F) Active Transport
G) Negative Feedback
H) Positive Feedback
J) Homeostasis
Answer:
H
Explanation:
I am not 100% sure but that seems like a reasonable answer
Answer: J
Explanation:Homeostasis takes place in order to maintain a balance.
- Which of the following is NOT a molecule?
b. silver
a. water
c. carbon dioxide
d. sugar
it’s A
Answer:
sugar
Explanation:
sugar is a combination of different molecules
2.20 Unit 2 Test Dynamic Earth Part 2, 100 Points Brainliest somebody please help me I didn't have time to study I don't want to fail this class please
A seismograph station is located several thousand kilometers from an earthquake’s epicenter.
Explain the order that the S and P waves will arrive at the station.
By using the characteristics of the S and P waves explain why they arrive in the order they do.
Answer:
The P waves will arrive at the station first because they travel the fastest at an average of 6.1 km/s. The S waves will arrive second, traveling slower at approximately 4.1 km/s. The two different waves would have arrived 3 minutes apart, based on the S-P Wave Interval Chart.
Explanation:
Answer:
The P waves will arrive at the station first because they travel the fastest at an average of 6.1 km/s. The S waves will arrive second, traveling slower at approximately 4.1 km/s. The two different waves would have arrived 3 minutes apart, based on the S-P Wave Interval Chart.
Explanation:
Which macromolecule makes up the majority of the cell membrane?
O nucleic acids
O proteins
O carbohydrates
O lipids
HELLLLLLLLLP!!!!!!! I NEED TO BRING MY MY GRADE UP FROM F!!!!!!!!!
Multicellular plants and animals have organs to perform specific functions.
What do eukaryotic cells have to perform specific functions?
A. vacuole
B. organelles
C. cytoplasm
D. ribosomes
Answer:
organelles
Explanation:
each of the organelles like mitochondria, endoplasmic reticulum, lysosomes, golgi apparatus etc performs a specific function critical to the cell's survival.
What is causing the surge in antibiotic resistance?
Answer:
Antibiotic resistance is accelerated by the misuse and overuse of antibiotics, as well as poor infection prevention and control. Steps can be taken at all levels of society to reduce the impact and limit the spread of resistance.
Explanation:
Answer:
people using antibiotics all the time
Explanation:
It is causing a super bacteria/virus.
L 6.2.5 Quiz: Electromagnetic Waves
Question 3 of 5
Which two types of waves require matter in order to travel?
I A. Electromagnetic waves
B. Sound waves
C. Water waves
0 D. Light waves
6 times 7 ???????????????/
42 is the correct answer
Answer:
42 is the answer to 6 x 7
Explanation:
You want to alter this model so it also shows the flow of energy through the biosphere. To start, you draw a sun. Then, you draw arrows from the sun to the trees and the photosynthetic algae, which are examples of . From there, arrows would be drawn to the moose and the fish, which are . Finally, you would draw arrows connecting groups to , which are represented by microbes responsible for decomposition on this model.
Answer:
The correct answer is :
1. Autotrophs
2. Heterotrophs
3. Saprophytes
Explanation:
In a flow of energy through a biosphere, organisms that trap sunlight for producing their energy on their own known as autotrophs such as plants and photosynthetic algae. These organisms are able to produce their energy and food on their own.
The moose and the fish are the organisms, depends on another organism for their food which means they are heterotrophs and these organisms only get 10% of the energy of what they depend on.
Plants and animals when dies or dead organic matter are decomposed by various microorganisms known as saprophytes to get their energy.
What can be done to save forest? From class 8 science
Answer:
By planting more and more trees.By using less amount of papers it will help in saving trees.By controlling the forest fire.Hope it helps.
Why is it important for biologists to
understand the different types of
interactions in an ecosystem?
Answer:
So they Can work better and quicker
2. Which particle's mass is similar to a proton's mass? ( A. an atom B. a nucleus C. a neutron D. an electron
Answer:-
Option C. a neutron