Why are whales classified as mammals
Answer:
They give birth to young, have fur, have lungs, and provide milk for the young.Explanation:
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According to the UCSB Science Line, Whales are mammals because they give birth to young, have fur, ( even though it may not be visible ) have lungs and breathe, and provide milk for the young.
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I got these facts from the UCSB Science Line, you can check it out if you want.
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Hope this helps! <3
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HELP ASAP PLEASEEE ??! :)
sorry the offspring of the organism
how can elevation greatly affect an ecosystem
Answer:
Elevation may affect the type and amount of sunlight that plants receive, the amount of water that plants can absorb and the nutrients that are available in the soil. As a result, certain plants grow very well in high elevations, whereas others can only grow in middle or lower elevations.
Explanation:
explain what will happen when red blood cells is placed in hypotonic solution
Answer:
it will become turgid.
Explanation:
since the concentration of salt is less in the solution than the rbc ,due to osmosis more water enters the rbc hence making it turgid.
In which step of mitosis does a new nuclear membrane form around each new nucleus? O telophase prophase metaphase anaphase
Answer:
Telophase
Explanation:
is the final step of mitosis. During this phase, the nuclear membrane reforms, the nucleolus reappears, and the chromosomes unravel into chromatin.
What is the classification of virus
Answer:
Viruses are classified into 4 groups based on their shape: filamentous, isometric , enveloped, and head and tail.
Many viruses attach to host cells to facilitate penetration of the cell membrane, allowing their replication inside the cell.
The virus core contains the small single- or double-stranded genome that encodes the proteins that the virus cannot get from a host cell.
Explanation:
not sure if this is what you are looking for
According to the Baltimore classification system, Viruses are classified into seven classes on the basis of their morphology and function.
What is Virus?A Virus may be defined as a type of microorganism that consists of a nucleic acid molecule in a protein coat and infects cells and may cause disease.
Viruses are classified into seven classes, each of which has its own families of viruses and has differing replication strategies.
Class 1: Double-stranded DNA viruses.
This type of virus usually must enter the host nucleus before it is able to replicate. An Example is Adenoviridae.
Class 2: Single-stranded DNA viruses.
Such types of viruses replicate within the nucleus and pertain highly in vertebrates. An example is Circoviridae.
Class 3: Double-stranded RNA viruses.
Such types of viruses do not depend on host polymerases for replication. An example is Birnaviridae.
Class 4: Single-stranded RNA viruses (positive sense).
Such types of viruses have polycistronic mRNA which is translated into a polyprotein. An example is Flaviviridae.
Class 5: Single-stranded RNA viruses (negative sense).
Such types of viruses must be transcribed by viral polymerases into complementary forms. An example is Filoviridae.
Class 6: Single-stranded RNA viruses (positive sense) that replicate through DNA intermediate.
Such types of viruses use the enzyme reverse transcriptase to convert the positive sense RNA into DNA. An example is Retroviruses.
Class 7: Double-stranded DNA viruses that replicate through a single-stranded RNA intermediate.
Such types of viruses have a double-stranded gapped genome that is subsequently filled into a covalently closed circle that serves as the template for the production of viral mRNA. An example is the Hepatitis B virus.
Therefore, it is well described above.
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Calcium, IP3, and cyclic AMP are all small molecules that can be found inside most cells, yet they are known to be important second messengers that can increase or decrease in response to a wide variety of signals. However, each signal often produces completely different responses. Give an example of this phenomenon, and explain how such responses occur.
Answer:
they are second messenger molecules capable of triggering different signaling pathways
Explanation:
Second messenger molecules are intracellular signaling molecules that trigger different cellular responses. Examples of second messengers include Calcium ions (Ca2+), Inositol trisphosphate (IP3), and cyclic AMP (cAMP). Secondary messengers may be activated by different cellular responses, for example, cyclases that synthesize cAMP or by opening calcium ion (Ca2+) channels. For example, cAMP signaling is able to activate kinase enzymes that perform phosphorylation and interact with other effector molecules to mediate different biological functions (for example, regulation of glycogen and sugar metabolism). On the other hand, Ca2+ signaling is required for muscle contraction, neurotransmitter release, etc. Ca2+ signaling is known to exert allosteric control over enzymes and other types of proteins.
what is biotechnology
Answer:
Biotechnology is a broad area of biology, involving the use of living systems and organisms to develop or make products. Depending on the tools and applications, it often overlaps with related scientific fields
Pls Pls Pls help me!!!
Label the virus pictured below.
Hydrotropism
Stimulus = ___________ Response = __________
A sunlight, roots grow downwards
B water, roots grow towards source of water
C plant leaves move away from touch, plant stem grows towards light
D Plant stem grows upward, plant roots grow downward
Answer:
a,d
Explanation:
Answer:
c
Explanation:
plant leaves move away from touch,plant stem grows towards light
PLZ HELP!!!!!!!!!!!
Part C Colony collapse disorder is a natural phenomenon in which the majority of worker honeybees-bees that collect food for the hive-die at the same time. If several hives in a region experience this phenomenon, how could it affect the life cycle of flowering plants in the region?
Answer:
b part
Explanation:
Answer:
It would affect the plants to die around it because there is no bees pollinating them.
Explanation:
The remora fish attaches itself to sharks for transportation and access to food scraps. The shark is not harmed. What type of example is this?
Answer:
That shark is trained by human
Sorry this is late: You didn't put the answer options, but I was on this question, so the correct answer is commensalism. Don't forget to put the answer options, or no one will understand it. Good luck with the rest of your work!
Which of the following is a function of the nucleus in organism 2?
Answer:
The nucleus is an organelle found in most eukaryotic cells, the exception being red blood cells. ...
The primary functions of the nucleus are to store the cell's DNA, maintain its integrity, and facilitate its transcription and replication.
PLEASE HELP!!!!!!
Red blood cells transport oxygen to every cell in the body. This oxygen is needed to release energy stored in glucose molecules. Red blood cells also transport carbon dioxide, a waste product produced by cells, back to the lungs where it is exhaled. When a person exercises, his or her muscle cells consume more oxygen and produce more carbon dioxide. The body responds by increasing its breathing rate and heart rate to supply more oxygen-rich blood to the muscles and carry away more wastes. Explain how this is an example of maintaining homeostasis.
Answer:Read Passage Below
Explanation:
Red is dominant over yellow. If a male purebred red rose(RR) is crossed with a female hybrid rose (Rr), what percent of the roses will be red?
25%
100%
Btw i learned 50% and 75% is wrong so that is why there is only two
Answer:
100%
Explanation:
Because one of the roses is purebred dominant, all recessive genes will be overshadowed.
Which has the lowest albedo?
A. An icy lake
O B. A white sidewalk
O C. A blacktop highway
O D. A pond
Answer: a blacktop highway
Answer:
Explanation:
Blacktop highway
Theres multiple slides! WILL GIVE BRAINLIEST. Please help, science isnt my strong suit. This will bring my grade up i cant fail science, please. There wasn't science so i picked biology.
Explanation:
11. C
12.B
13.B
14.B
15.C?
16.D
17.A?
18.D
How does the CF gene affects the cell membrane?
Answer:
Normal Function. The CFTR gene provides instructions for making a protein called the cystic fibrosis transmembrane conductance regulator. This protein functions as a channel across the membrane of cells that produce mucus, sweat, saliva, tears, and digestive enzymes.
Explanation:
Which of the following statements is true? *
a. Energy can be recycled through an ecosystem repeatedly, while nutrients cannot
b. Energy only flows in one direct through an ecosystem, while nutrients can be recycled repeatedly
c. Both energy and nutrients can be repeatedly recycled through an ecosystem
d. Neither energy nor nutrients can be reused in an ecosystem.
Answer:
i believe its c
Explanation:
help me on 28 pleaseeeee
match terms w definitions
Answer:
Bipolar or Polarity : B
Surface Tension: F
Capillary: C
Ion: A
Dissolving: D
Specific Heat: E
Answer:
1. Bipolar or Polarity b
2. Surface tension f
3. Capillary action c
4. Ion a
5. Dissolving d
6. Specific heat e
Comparing Asexual and Sexual reproduction
Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique.
Explanation:
At which temperature a chocolate can melt in the sun
Answer:
In Arizona.... maybe 90 to 100 degrees
Explanation:
what happens to all the weight of the food we eat
Answer:
All the weight of food we eat can happen in many ways. It can be digested and turned into waste. It can also be turned into body fat. The weight of the food we eat can help give us nutrition and vitamin s.
Explanation:
The weight of food can slightly go away due to food going in to the digestion system and turns into waste.
Apologies if this isn't the best answer.
Explain how mitosis
maintains the chromosome number of the
original cells when forming new cells.
Mitosis is a type of cell division that helps to maintain the chromosome number of the original cells by dividing cells that previously duplicate their genetic material (DNA) during the interphase (S phase).
The cell cycle is divided into the interphase and the mitotic (M) phase.The interphase of the cell cycle is in turn divided into three different phases: Growth 1 (G1) phase, Synthesis (S) phase and Growth 2 (G2) phase.During the S phase, the chromosomes (i.e., the genetic material) of a cell are duplicated.Mitosis is a type of cell division that follows the interphase of the cell cycle by which a somatic (body) cell divides to produce two genetically identical daughter cells.In conclusion, Mitosis is a type of cell division that helps to maintain the chromosome number of the original cells by dividing cells that previously duplicate their genetic material (DNA) during the interphase (S phase).
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List and define the four main elements of the water cycle.
(SCIENCE)
Answer:
There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection
Explanation:
Evaporation- Is the the process in which water changes from a liquid to a gas or vapor.
Condensation- Is the process in which water vapor or gas in the air is changed into a liquid. Is the opposite of evaporation.
Precipitation- Precipitation is water from clouds in the form of rain, freezing rain, sleet, snow, or hail.
Collection- This is when water that falls from the clouds as rain, snow, hail or sleet, collects in the oceans, rivers, lakes, streams. Also some will soak into the ground and will collect as ground water.
Hope this helps ya!!
A cell is placed in a solution with a HIGHER solute concentration (a
hypertonic solution) than the inside of the cell. What will happen to the
cell?
Answer:
the cell will shrink due to the concentration gradient. Areas of low to areas of higher concentration.
Explanation:
What is now done to wastewater that was not done until more recently?
I believe it is the treatment for dangerous pollutants exiting our waterways into the ocean.
How can vaccines be used to prevent viral infection?
A.)To prevent a immune response in the host
B.)To destroy any virus that enters the host
C.)To create a blocking protein on the cell
D.)To prevent the replication of the virus
Answer:
D
Explanation:
I know
Answer:
I believe that your answer is C.
Explanation:
C is your answer because it shows your body how to fight and block the virus.
vaccines usually send antigerms in your cells and create immunity/block the virus from entering your cells.
i hope this helps! let me know if im wrong :)
Science 6th grade digital INB- You dont know what parts of the ground are safe and what parts are thin crusts of soil covering fires or sinkholes. Design a system that can access the area and take measurements that show changes in the fire. (No right or wrong answer just need someone to come up with something and quick.)
Answer:
Fire detecting Scanner.
Explanation:
Fire detecting Scanner is a system which has the ability to scan the area and tells the changes occurs in the fire inside the earth crust. This scanner collect all information about the area on the basis of which we can take steps to avoid the damage caused by the fire. With the help of this scanner we can tell that which part is safe and which part of the area is dangerous for people.