Otters spend most of their time in the water. Over time otters have developed a coat with soft underfur to trap warm air near their skin and an outer layer of longer hair that keeps them dry underwater. Which of the following describes how otters developed this type of fur coat?
The otters adapted gradually over many generations.
The otters adapted gradually over many generations.
Cold weather triggers the underfur to grow each winter.
Cold weather triggers the underfur to grow each winter.
The otters mated with other aquatic mammal species having thick fur.
The otters mated with other aquatic mammal species having thick fur.
The significant amount of time otters spend grooming their fur encouraged this trait.
The significant amount of time otters spend grooming their fur encouraged this trait.
Answer:
Cold weather triggers the underfur to grow each winter.
Explanation:
this is because they would freeze in the cold water in the winter.
Can someone please help me with these questions
Answer:
1) C
2) C
3) A
Explanation:
Hope this helps! Have a great day!!
Respiration in Organisms:- Visit the doctor. Learn about the various diseases related to respiratory system. What are the measures that may be taken to prevent them? Prepare a chart incorporating that measures and present in the class.
The diseases associated with the respiratory system include asthma, chronic obstructive pulmonary disease (COPD), lung cancer, etc.
What are respiratory diseases?Respiratory diseases are different types of conditions/disorders that affect our respiratory airways.
These types of diseases (respiratory diseases) hamper our ability to take oxygen from the air.
In conclusion, The diseases associated with the respiratory system include asthma, chronic obstructive pulmonary disease (COPD), lung cancer, etc.
Learn more about respiratory diseases here:
https://brainly.com/question/2152557
#SPJ1
Which of the following is the most important reason that a scientist should
replicate his or her experiments?
OA. To make sure that differences in the data are caused by real
differences and not by error
OB. To make sure that other scientists do not have to waste time
replicating this scientist's experiments
C. To practice the experimental procedures until the scientist is an
expert at performing them
D. To prove the scientist's hypothesis
Answer:
D. the only method of scientific investigation is in essence demonstrating the hypothesis is valid through repeated and more vigorous investigation using sound experimental techniques to produce the same or very similar results, ideally obtained from larger scale longitudinal studies, increasing sampling size and scale to lend greater and greater quality data on any query
With reference to the diagrams below, describe how fishes and bottom dwelling polychaete worms cope with the fluctuating salinity within estuaries over the tidal cycle.
Fishes and bottom dwelling worms cope with the fluctuating salinity within estuaries over the tidal cycle with the use of transport system such as active and passive transport.
How active and passive transport system are used?In salty water, fish and other marine organisms used active transport in which energy is used to remove salts from the body of these marine organisms because excess salts are harmful for them.
So we can conclude that Fishes use transport system such as active and passive transport to cope with the fluctuation of salt concentration.
Learn more about salinity here: https://brainly.com/question/20283396
#SPJ1
Organelles wear out just like the parts to a machine. The cell is always repairing old organelles or completely breaking them down and replacing them with new ones. Imagine that a mitochondrion is old and worn out. What organelle(s) could be responsible for "disposing" of it?
The organelle that is responsible for removing worn out cells are the lysosomes.
What are lysosomes?Lysosomes are the organelles found within a cell that contains digestive enzymes called the lysozyme which are used to digest old and worn out mitochondria and wastes from the cell.
Therefore, the organelle that is responsible for removing old and worn out mitochondria are the lysosomes.
Learn more about lysosomes here:
https://brainly.com/question/5534167
#SPJ1
What trait is recessive in the picture
Shortness is the recessive trait
All of the following show the probability of rolling an odd number on a 6-sided number cube except which of the following? A. 75% B. 3/6 C. 1/2 D. 50%
21. Which direction does the arrow point in a food web?
O downward
O to the animal being consumed
O to the animal consuming
O always toward a producer
Answer:
To the animal consuming
Explanation:
this is what I mean by saying that the arrow points to the animal consuming: in this case the animal consuming consumes whatever is written behind it ie in the example given the locusts will feed on the grass which is the producer that will feed on the locust something else will feed on the rat and that's how the chain goes so the arrow is always pointing to the eater and before it is what it consumes. have a nice day hope it helped if not feel free to ask me or tell me.
Types of cell signalling?
Select the correct location on the image.
Students are having a group discussion and notice that Maria has not had a chance to introduce her thoughts.
Which student response best draws Maria into the discussion?
Is Maria even
paying attention?
Maria, what do
you think?
Don't you
agree, Maria?
Alright, Maria, will
you settle this
argument?
Is Maria even paying attention? is the student response which best draws Maria into the discussion.
What is Discussion?
This is defined as the process of talking with people about a particular subject or topic.
Is Maria even paying attention? will make her alert and more involved so as to know what is being talked about.
Read more about Discussion here https://brainly.com/question/514815
#SPJ1
Answer:
Maria What do You think
Explanation:
The Least rude Way Of saying it
What is the role of the nervous system in digestion?
Answer:
to provide passage of nutrients throughout the body.
Answer:
This system coordinates digestion, secretion, and motility to achieve adequate nutrient absorption.
Explanation:
Enteric nervous system- is the intrinsic nervous system of the GI tract, containing a mesh-like system of neurons
3. Which one of the following is not a biome? (1) tundra (2) tropical rain forest (3) mountain (4) savannah
Answer:
Mountain
Explanation:
Its pretty obvious
In DNA Replication, ATTTGC is complementary to TAAACG. True or False?
Answer:
True.
Explanation:
It's commonly known that adenine pairs with thymine and guanine pairs with cytosine following complementary base pairing.
The statement "In DNA Replication, ATTTGC is complementary to TAAACG" is definitely true.
What is DNA replication?DNA replication may be defined as the biological process through which two identical replicas of DNA are formed from one original DNA molecule. It occurs in all living organisms acting as the most essential part of biological inheritance.
The process of DNA replication is commonly known for some complementary sequences. For example, adenine pairs with thymine, and guanine pairs with cytosine which effectively follows the process of complementary base pairing.
This base pairing of nucleotides will follow Chargaff's rule which states that the amount of adenine is always equal to the amount of thymine, while the amount of guanine always equal to the amount of cytosine.
Therefore, the statement "In DNA Replication, ATTTGC is complementary to TAAACG" is definitely true.
To learn more about DNA replication, refer to the link:
https://brainly.com/question/21265857
#SPJ2
Which term best describes this step of the investigative process?
Experiment is the best term to describe the step of investigative process.
Experiment.This is a procedure carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis, or to illustrate a known law.
Read more on Experiment:
https://brainly.com/question/17274244
#SPJ1
how many half-lives have lapsed to yield a sample with 125 atoms of C-14 and 375 atoms of N-14
2 half-lives have elapsed to yield 125 atom of the original sample
Half of the amount of the radioisotope present at any given time will undergo spontaneous disintegration during the succeeding 5730 years. In other words , after 5730 years ,only half of the original amount of 14 c remains in a sample of organic material . Imagine that you start out with 100 grams of carbon 14 . The half -life is the time it takes for half of given amount of isotope to decay .
learn more about how many half- lives have lapsed to yield a sample with 125 atoms of C-14 and 375 atoms of N- 14
https://brainly.com/question/2320811
Which type of energy resource does not use a turbine to generate electricity?
A. Petroleum
B. Sunlight
C. Biomass
D. Coal
Sunlight energy source does not use a turbine in order to generate electricity.
Which type of energy resource does not use a turbine to generate electricity?Sunlight is a type of energy resource does not use a turbine to generate electricity. Solar photovoltaic systems have Solar photovoltaic cells that convert sunlight directly into electricity.
So we can conclude that sunlight energy source does not use a turbine in order to generate electricity.
Learn more about electricity here: https://brainly.com/question/776932
#SPJ1
Which properties are characteristic of metalloids
Answer:
1) Metalloids are solids.
2) They have a metallic luster, and generally look like metals.
3) They are brittle, and easily shattered.
4) Metalloids can conduct electricity, but not as well as metals.
How can inheritance of traits affect a crop’s ability to survive disease?
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the field?
O The bird population would stay the same
O The bird population would decrease
O The bird population would infinitely increase
A person has two genes, A and B that are on the same chromosome and 25cM apart, what percentage of their gametes would you expect to have parental combination of A and B
The percentage of your gametes that are expected to have a parental combination of A and B is 25%.
Why is AB blood so rare?Even rarer, type AB blood is characterized by the fact that it has no antibodies against either type A blood or type B blood. This means that people of this blood group can receive blood of any type without risk of adverse reactions.
With this information, we can conclude that The percentage of your gametes that are expected to have a parental combination of A and B is 25%.
Learn more about AB blood in brainly.com/question/256625
#SPJ1
__________ is a premature judgment or opinion that is formed without examination of the facts.
A premature judgment that is formed without facts examination is recognized as discrimination. The correct option is a.
What is discrimination?The unjust or prejudiced treatment of many groups of individuals, particularly on the basis of color, age, gender, or handicap is referred to as discrimination.
The missing options of the question are:
Discrimination.Gentrification.Stereotype.Prejudice.A premature judgment that is formed without facts examination is recognized as discrimination.
Thus, the correct option is a.
For more details regarding discrimination, visit:
https://brainly.com/question/14896067
#SPJ1
What are some environmental advantages of building green?
Are these answers correct? If not please tell me the correct answers
Answer:
2 is incorrect
Explanation:
Robert Hooke was the first one to use the term ‘cell’.
Other than that it looks good :)
Hope this helps! Have a great day!!
Answer:
2.answer is B /use the term "cell"
3.C
• which of the following is required for the sodium-potassium ions into an animal cell?
Answer:
Energy from ATP
Explanation:
ATP, or adenosine triphosphate, is a chemical that transports energy within cells. It is the cell's primary source of energy, and it is produced via photophosphorylation (adding a phosphate group to a molecule using light energy), cellular respiration, and fermentation. ATP is used by all living organisms. It is employed in signal transduction pathways for cell communication and is integrated into deoxyribonucleic acid (DNA) during DNA synthesis, in addition to being an energy source.
Could anyone please help me with this biology lab? Thank you :)
Look at these images, the oldest is at the bottom, the newest is at the top, so the drawings are next to time zones are properly set up, so next to the time scale is when the drawing next to it was made.
RNA Polymerase utilizes a strand of DNA to create a new complementary strand of RNA.
True or False?
RNA Polymerase utilizes a strand of DNA to create a new complementary strand of RNA. This statement is True.
What is Transcription?Transcription is defined as the process of copying a segment of DNA into RNA. These segments of DNA are transcribed into RNA molecules that can encode proteins which is called as messenger RNAs are produced. Other segments of DNA are copied into RNA molecules called non-coding RNA while mRNA comprises only 1–3% of the total RNA sample.
The main steps of transcription are as follows:
1. Initiation
2. Promoter clearance
3. Elongation
4. Termination
RNA polymerase is the type of enzyme used in transcription which is a multi-unit enzyme responsible for creating a complimentary strand of nucleic acid called RNA from a single stranded DNA template through the incorporation of adenosine, cytosine, guanine and uracil nucleotides.
Thus, RNA Polymerase utilizes a strand of DNA to create a new complementary strand of RNA. This statement is True.
Learn more about Transcription, here:
https://brainly.com/question/14136689
#SPJ2
The 4 types of microscopes, their descriptions, and an example use are:
Answer:
1compound Light microscope
stereoscopic
transmission electron
scanning electron
Describe the way the heart is pumping and creating cardiac output,What are factors that can change cardiac output? Explain the sounds of the heart and why they are important. Explain in complete detail the steps of blood flow through the heart and in to and back from the different circuits of the body (provide full structural and functional detail of every structure you pass along the way).
Blood volume reflexes, hormones, body temperature, emotions, gender and age are the factors that affect cardiac output.
What are factors that can change cardiac output?Factors that affect cardiac output are changing heart rate and stroke volume. Other factors include blood volume reflexes, hormones, body temperature, emotions, gender and age.
Heart sounds are created from blood flowing through the heart chambers when the cardiac valves open and close during the cardiac cycle.
Our heart sends the blood to the lungs, where it receives oxygen and dispose carbondioxide. Then, your heart pumps the oxygenated blood to the tissues and organs throughout your body.
So we can conclude that blood volume reflexes, hormones, body temperature, emotions, gender and age are the factors that affect cardiac output.
Learn more about heart here: https://brainly.com/question/26292783
#SPJ1
How dose the cell wall protect a plant cell?
Answer:
It provides support and maintains the cells shape.
Explanation: