during which stage of mitosis do the chromosomes line up along the middle of dividing cell
Answer:
Metaphase
Explanation:
can somebody tell me if this is right or not.
the role spindle during mitosis
The ____ surface area exposed the ____ the weathering occurs.
A. Less, faster
B. More, slower
C. More, faster
D. Less, no change in rate
The more surface area exposed the faster the weathering occurs. Thus, the correct option is B.
What is Weathering?Weathering is the process of breaking down or dissolving of rocks and other mineral particles on the Earth's surface. Once a rock has been broken down into smaller pieces, a process known as erosion occurs which results into transport of the bits of rock and minerals away from each other. Water, acids, salt, plants, animals, and change in the temperature all are agents of weathering and erosion of particles.
Mineral weathering rates are directly proportional to the surface area of the minerals which are exposed to weathering. For example, if the rock is broken down into small pieces, it may undergo chemical weathering more readily than that of large pieces. This is because smaller pieces have more surface area for water and gases to react with the rock than the larger pieces of rocks.
Therefore, the correct option is B.
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how does the gravitational force between two objects change if the distance between the objects increases?
Answer:
YES
Explanation:
As g ∝ 1/d² between two two components, further potential difference would result in lower gravitational pull. So the influence of gravitational pull among them also reduces as two things are isolated from the others.
a
ll organisms contain DNA. DNA holds the genetic instructions for all of an organism’s structures and functions. Which of the following accurately describes how these genetic instructions impact an organism’s structures and functions?
Proteins from these genetic instructions impact an organism’s structures and functions.
What are the functions of proteins?Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.
Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions.
There are seven types of proteins: antibodies, contractile proteins, enzymes, hormonal proteins, structural proteins, storage proteins, and transport proteins.
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What is the stimulus if the response is to go to sleep?
A. Thirst
O B. Hunger
O C. Fatigue
O D. Fear
Answer:
AXAlXJLbda,SA<x
Explanation:
List 3 methods of fossilization and describe the process of each
Answer:
preservation of original remains- when the original remain is still in the rock/dirt, typically shells and bones.
permineralization- when the pores of plant materials, bones, and shells are impregnated by mineral matter from the ground, lakes, or oceans
molds and casts- casts preserve a three-dimensional impression of remains buried in sediment, the mineralized impression of the organism left in the sediment is called a mold.
replacement- form when water dissolves away dead tissue and leaves minerals in its place.
compression- a fossil preserved in sedimentary rock that has undergone physical compression
petrifaction- when the organic plant or animal material is replaced with minerals and eventually hardens into rock
please help a failing student
Answer:
third one i think
Explanation:
Help please answer fast!!!
Answer:
1900 0.03 13.68
1940 0.13 15.41
Explanation:
i hope its helpp
Is Helicase functional in elongation?
Answer:
Proteins with seven conserved "helicase domains" play essential roles in all aspects of nucleic acid metabolism. ...
Explanation:
Known or putative helicases are required for general transcription initiation and for transcription-coupled DNA repair, and may play important roles in elongation, termination, and transcript stability.
Which of the following is NOT a benefit of finding and dating fossils?
A. Through fossils we can learn about organisms that lived in an area long ago.
B. Through fossils we can see whether or not evolution has occurred.
C. Through fossils we can map changes in the environment in one area.
D. Through fossils we can determine the time it takes for all organisms to evolve.
La respuesta es la C
2) The diagram below represents a change in guard cells that open and close pores in a plant. Guard cell Open pore Closed pore This change directly helps to A) regulate water loss B absorb minerals C) increase heterotrophic nutrition D) reduce seed production
Answer:
A) regulate water loss
Explanation:
Guard cells refer to the cells enclosing each stomata. They assist in monitoring the rate of transpiration by closing and opening the stomata. The guard cells possess the tendency to monitor the closing and opening of stomata by changing shape. The shape of the guard cells modifies on the basis of the concentration of potassium ions and water found in the cells themselves.
The stomatal pores get closed when carbon dioxide is no longer needed for the process of photosynthesis. The guard cells swell when movement of water takes place inside these pores, and thus, the opening of stomatal pores occurs, and as water moves out, the guard cell closes. Thus, guard cells play an essential role in regulating water loss.
*AQUATICS SCIENCE*
Q: What happens to sediments at these locations?
Answer:
D
Explanation
As the river flow it will erode the side of the cutbank and deposit the sediments to the point bar.
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ANSWER THE 2 QUESTIONS
1. WHAT IS THE BEST TREATMENT FOR VIRAL DISEASES?
2. WHAT IS THE ONE WAY BACTERIAL DISEASES AFFECT BODY SYSTEMS?
Answer:
1. Getting plenty of rest, and drinking fluids is one of the best treatments for viral diseases.
2. One way bacterial diseases can affect body systems is by affecting the respiratory and muscular systems.
Explanation:
I hope this helps!!!!
PLEASE HELP ME! ILL MARK BRAINLIEST!
Answer:
ExplanationA coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
Part C-Answer true or false:
a. If a plant cell is placed in a salt solution, the central vacuole will shrink
b. If a red blood cell is placed in distilled water, it will shrink
c. If a plant cell is placed in distilled water, the cell membrane will move away from the cell wall
d. If a red blood cell is placed in a salt solution, the salt will enter the cells, giving them a strange appearance
1. After looking at the diagram, what role do you think blood plays in the human body?
Answer:
Blood is used to transport oxygen around the body
Explanation:
Identify the practice by which humans use biological understanding to solve practical problems.
Answer:
Biotechnology
Explanation:
7. Transcription is:
a. copying the code from DNA to RNA
b. making more DNA from DNA
A single celled prokaryotic organism with a cell wall containing peptidoglycan would
be classified under which Kingdom?
-Eubacteria
-Protista
-Fungi
-Archaebacteria
Answer: Archaebacteria
Explanation:
Q.19. During which period did the first flowering plants (angiosperms) appear?
a) Triassic
b) Silurian
C) Jurassic
d) Cretaceous
Answer:
Cretaceous
Explanation:
They began changing the way the world looked almost as soon as they appeared on Earth about 130 million years ago, during the Cretaceous period. That's relatively recent in geologic time: If all Earth's history were compressed into an hour, flowering plants would exist for only the last 90 seconds
what Helps to maintain the plasma membranes fluidity?
Answer:
If unsaturated fatty acids are compressed, the “kinks” in their tails push adjacent phospholipid molecules away, which helps maintain fluidity in the membrane. The ratio of saturated and unsaturated fatty acids determines the fluidity in the membrane at cold temperatures.
If you are given a course of 10 days' worth of antibiotics, how many days should you take them for?
5. José plans to use a microscope to observe a cell from a maple leaf and a cell from a snake's skin. Which of the following with José most likely
see in both cells?
a. Cell wall
b. Chloroplasts
c. Nucleus
d. Tissue
*AQUATICS SCIENCE*
Q: Which image shows the most likely course of the river in 500 years?
Answer:
B
Explanation:
After 500 years the river will erode the mender neck to shorten its course
What is the evolution of sex?
Answer:
Sex evolved as an extremely efficient mechanism for producing variation, and this had the major advantage of enabling organisms to adapt to changing environments. Sex did, however, come with a cost. In reproducing asexually, no time nor energy needs to be expended in choosing a mate.
Which organisms are both heterotrophic and autotrophic?
Answer:
Pitcher Plant ( venus fly trap) has both autotrophic and heterotrophic mode of nutrition. They can prepare their own food like any other plant.
Explanation:
Answer:
Cyanobacteria
Explanation:
This type of bacteria is a heterotrophic and autotrophic organism. They exhibit photoautotrophic nutrition. Sorry for the wait, I had to do some research about this.
-Aslina
Which of the following molecules does not contain carbon?
A. Proteins
B. Fats
C. Water
D. Sugars
Answer:
proteins are the molecules that does not contain carbon
Water is the molecule that does not contain carbon as it contain hydrogen and oxygen. The correct option is C.
What are molecules?A molecule is a gathering of two or more atoms held together by chemical bonds. As per the context, the term may or may not encompass ions that meet this criterion.
The smallest particle of a substance that possesses all of its physical and chemical properties. One or more atoms make up a molecule.
Water is a simple molecule made up of one oxygen atom bonded to two hydrogen atoms. The bonds are polar covalent or polar bonds due to the higher electronegativity of the oxygen atom.
The molecules that is proteins, carbohydrates, and fats are the ones that contain carbon atom in their composition.
Thus, the correct option is C.
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The majority of the world's forests are located
A. at the equator.
B. in the temperate zones.
C. in mountains.
D. near deserts.
E. near large bodies of water.
Answer:
may be the ans is at the equator
Explanation:
because the temperature at equator is sutable to grow plant's there will be sunny and raining in equator