Answer:
The A band stays the same width and, at full contraction, the thin filaments overlap. ... The I band contains only thin filaments and also shortens. The A band does not shorten—it remains the same length—but A bands of different sarcomeres move closer together during contraction, eventually disappearing.
An amoeba that lives in salt water does not have a contractile vacuole to do so.
Explain observations.
Answer:
what do we call a mutation that involves one or just a few nucleotides
which trophic level is most vulnerable to extinction?
Answer:
predators since they depend on other animals
Explanation:
which structures of the cytoskeleton are found in animal cells
Answer:
Microfilaments, microtubules and intermediate filaments make up the cytoskeleton of animal cells. They are all made up of smaller protein units and can serve a variety of functions for the cell. From transportation to cell movement to support and structure, the cytoskeleton is an invaluable part of the animal cell.
Explanation:
The importance of PATTERNS (base order) over the two steps of protein synthesis:
TRANSCRIPTION: The sequence ( specific order) of bases in _________determines the sequence (specific order) in the _______.
TRANSLATION: The sequence (specific order) of the bases in the ________ determines the sequence of the _________that make-up the _________.
Answer:
fdfdfdfdfdfdfdfdfdfdffd
how does chromatid cohesion as maintained by cohesin proteins differ in mitosis and meiosis?
state three items that are absorbed by the plant system ?
where do materials pass in the cell
outline three process absorption help to improve
give a real life scenario of how diffusion occur
what type of molecules do we deal with in osmosis
what is the main artery that carries blood to your lungs
Answer:
Pulmonary arteries
Explanation:
Hope this helps.
In order for a light bulb to be turned on in a circuit, it must have what kind of switch?
Answer:
It must have a closed switch.
Explanation:
The current cannot flow through the full circuit if the switch is open, therfore the light won't switch on. However, if the switch is closed, the current can run through the circuit and the light bulb will switch on.
What is the difference in the structure of the cell walls of gram-positive and grarn-negative
bacteria?
Answer:
The major difference between Gram-positive and Gram-negative peptidoglycan involves the thickness of the layers surrounding the plasma membrane. Whereas Gram-negative peptidoglycan is only a few nanometers thick, representing one to a few layers, Gram-positive peptidoglycan is 30–100 nm thick and contains many layers.
Explanation:
1. A rapidly increasing human population is the primary driver behind what
LEADING cause of the loss of biodiversity? (SEV5.a) *
O a. Extinction
O b. Habitat Loss
O c. Pollution
O d. Overexploitation
Answer:
your answer is B. Habitat Loss
Explanation:
What is the #1 cause for the loss of biodiversity?
Habitat destruction
Habitat destruction is a major cause of biodiversity loss. Habitat loss is caused by deforestation, overpopulation, pollution, and global warming. Species that are physically large and those living in forests or oceans are more affected by habitat reduction.
Habitat loss and overexploitation, driven by our rapid population growth and unsustainable consumption patterns, are the primary causes of biodiversity loss which is now happening up to ten thousand times faster than for millions of years before.
An example of a communicable disease is
A - cancer.
B - chronic respiratory disease.
C- diabetes.
D -giardiasis.
Answer:
D giardiasis is the correct answer :)
An example of a communicable disease is giardiasis, which is in option D. Giardiasis is an example of a communicable disease. It is caused by a microscopic parasite called Giardia lamblia.
This disease affects the digestive system, causing symptoms such as diarrhea, abdominal cramps, bloating, and nausea. It is typically transmitted through the ingestion of contaminated food or water that has been contaminated with the parasite. Chronic respiratory disease includes conditions such as asthma, chronic obstructive pulmonary disease (COPD), and bronchitis, which are usually caused by long-term exposure to irritants or genetics and are not directly communicable.
Learn more about communicable diseases here.
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PLZ HELPPPP WILL PICH BRAINLIEST
Which of the following is not a reason the nitrogen cycle is important?
Nitrogen gas gets converted to nitrates for plants to use
Nitrogen is needed to synthesize proteins
Nitrogen provides energy for organisms
Nitrogen is needed to synthesize DNA
Nitrogen gas gets converted to nitrates for plants to use
Hope this helped you- have a good day bro cya)
The four main groups of macromolecules are carbohydrates, lipids, proteins. Identify each type of macromolecule based on its monomer.
True or False?A group of organs that work together to perform big jobs for your body is an organ system.
Answer:
True :)
Explanation:
an organ system is consisted of a group of organs that work together to carry out a complex function.
Which statement accurately describes the bond that forms between carbon and oxygen to create carbon dioxide
Answer:
It's a non-polar covalent bond.
Explanation:
Non-polar means they do not interact with water. Carbon dioxide and Oxygen bonded together by sharing electrons equally.
Enzymes can help make bigger molecules oflr break them down by making or breaking ________.
Answer:
active site im not sure if it's right
Which example is an internal stimulus? help plz
For example one of the internal stimuli is hunger which is the sign of low energy in the body. It stimulates us to eat something to regain the needed energy. Blood Pressure: Blood pressure is an internal stimulus of mammals that is measured by receptors in arteries.
Answer:
Thirst, Anyone who has ate contaminated food are examples.
Explanation:
Internal stimulus is the change That happens inside the body.An example of an internal stimulus for a Lion is hunger.Compare and contrast the immune system and nervous systems
similarities:
The immune system and the nervous system maintain extensive communication, including 'hardwiring' of sympathetic and parasympathetic nerves to lymphoid organs. Neurotransmitters such as acetylcholine, norepinephrine, vasoactive intestinal peptide, substance P and histamine modulate immune activity.
bacterial transformations involve the transfer of what?
Answer:
DNA
Explanation:
Bacterial Transformation was discovered as a natural phenomenon 1928 by Griffith et al. Later in 1944 scientists actually identified the transforming principle as DNA. It is a process of horizontal gene transfer in bacteria. It involves transfer of DNA fragment to a live bacteria through intact cell boundary.
Answer:
DNA
Explanation:
transfer of DNA fragment to a live bacteria through intact cell boundary.
Which of the four factors that affect evolution apply to the finches that the Grants studied? Use evidence from your research to support your answer.
Answer:
The four factors that affect evolution are mutations, natural selection, genetic drift and the gene flow, In the case, if the ground finches that Grants studied, we can observe the working of the natural selection. Due to change in the conditions in the environment, the large beak was an advantageous trait that was favored by the natural selection. The result of this process was an increase in numbers of large beaked finches and decrease in small-beaked finches compared to the initial numbers in the population.
Explanation:
Factors that affect evolution.
As per the question the evolution is a gradual process that includes the changes in the body of the organisms thereby making them more stronger and dynamic than others. The 4 features that affect evolution are mutations, natural selection, genetic drift, and gene flow.
The answer is thus are a major factor that leads to evolution in specie.
As per the case, Grants studied his works of natural selection. As per the changes associated with the environment, the large beak was an advantageous trait that was favored by natural selection. This leads to the increase in the size of the finches and the decline of other properties. Such a beak size, color, and even behavior. Hence the four-factor to consider are genetic drift, natural selection, adaptation and mutation (evolution).Learn more about the four factors.
brainly.com/question/22258905.
as the change in membrane potential in propagated down a t-tubule, which event does it stimulate to occur?
Answer:
Hru friend have a good day
Explanation:
ilu friend
Compare the functions of the male and female reproductive systems.
Explanation:
The main difference between male and female reproductive system is that male reproductive system produces and delivers sperms to the female reproductive system whereas female reproductive system facilitates fertilization and develops the baby.
5. Blueshift is observed when
1 point
O a luminous object travels alongside an observer
O a distant luminous object travels rapidly towards an observer
O a distant luminous object travels rapidly away from an observer
O a luminous object is stationary compared to an observer
Pls help I will give 21 points if it is correct
Answer:
(b) a distant luminous object travels rapidly towards an observer.
Explanation:
Blueshift is observed when a distant luminous object travels rapidly towards an observer. The correct option is B.
What is blueshift?The displacement of an approaching celestial body's spectrum toward shorter wavelengths is known as blueshift.
When an object moves away from us, the light it emits is known as redshift; when an object moves towards us, the light it emits is known as blueshift.
The blue and red shift of stars cannot be seen with the bare eye. There are several reasons for this.
First, even for an object moving at thousands of kilometers per hour, the effect is minor, with only a slight change in hue.
Red light, with both the longest wavelength, is at one end of the spectrum.
The shortest wavelength is blue or violet light. White light is a blend of all the colors in the color spectrum. It has every color of the rainbow.
Thus, the correct option is B.
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An arrangement of all the chromosomes of a diploid cell is called a(n)
Answer:
An arrangement of all the chromosomes of a diploid cell is called a kayrotype
An arrangement of all the chromosomes of a diploid cell is called a karyotype is the overall look of all the chromosomes in a species or an individual organism's cells.
What is the karyotype?A karyotype is a eukaryotic cell's nucleus' number and arrangement of chromosomes. The phrase is also used to refer to a species or an individual organism's entire set of chromosomes.
Each diploid cell in humans contains 46 chromosomes. There are 22 pairs of autosomal, or non-sex, chromosomes and two chromosomes that determine sex among them. A diploid cell has 2n total chromosomes, which is twice as many as a haploid cell's total chromosomes (n).
Therefore, a karyotype is the overall look of all the chromosomes in a species or an individual organism's cells, primarily their sizes, numbers, and shapes.
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what do we call the abusive behaviour between peers
Answer:
abusive behaviour can be classified in all sorts of relations but when inbetween peers most abusive relationships tend to be of bullying, competition or emotional.
Please fill in!!
a. ATP
b. Light energy
C. C02
d. 02
e. Carbohydrate
f. Water
Would greatly appreciate if you answered like this:
18: ATP
19: etc..
18. b
19. c
20. f
21. e
22. d
23. c
24. f
25. a
Can someone please help me and not just answer for points
Answer:
option c is the answer met-his-stop
the ________ is shared by the respiratory and digestive systems.
Answer:
oropharynx
Explanation:
What is molecular gastronomy? (Explain in your own words:))
Answer:
molecular gastronomy, the scientific discipline concerned with the physical and chemical transformations that occur during cooking. The name is sometimes mistakenly given to the application of scientific knowledge to the creation of new dishes and culinary techniques.
can someone please draw a flow chart of the Big Bang theory (not show) the scientific one (:
Answer:
Ur welcome ;) (Even tho I uploaded it from the web lol)
Explanation: