Answer:
(b)
Explanation:
The picture represents muscle tissue.
Which type of muscle tissue is pictured?
Answer:
Smooth muscles
Explanation:
-END-
SENIOR THREE BIOLOGY CHRISTMAS DOSAGE
1.(a) (i) Explain why small organisms such as this amoeba can obtain sufficient oxygen for respiration without a
specialized gas-exchange system.?
fi)explain why the method of gas exchange in (a)i above is only possible in very small organisms.?
Answer:
In single celled organisms surface area to volume ratio is optimum for diffusion/exchange of substances between the cell and its exterior and this rate of exchange suffices the requirement of a unicellular organism. However, in multicellular organisms the surface area to volume ratio is low, the exchange that takes place with the exterior or the environment occurs only through the body surface with the help of a specific structure/organ, example (Skin),However, this exchange does not compensate for millions of cells in a multicellular organism, which have distinct requirements based on their function
Explanation:
i) Amoeba gets oxygen gas dissolved in surrounding water through its plasma membrane by the process of diffusion.
ii)The oxygen gas diffused inside the body is used up by amoeba. carbon dioxide gas is also liberated in the surrounding water through the same process of diffusion.
What does this mean about the relationship between an
allele’s frequency and its likelihood of being dominant?
Which of the following statements explains the importance of enzymes that check for and repair mistakes during DNA replication?
A
The enzymes replace the DNA with RNA
B
The enzymes speed up the rate of RNA synthesis.
C
The enzymes prevent many genetic mutations from being expressed
D
The enzymes remove many recessive gene copies from the nucleus.
Answer:
C!!
Explanation:
The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed. Thus, the option C is correct.
What is RNA polymerase?RNA polymerase is an enzyme that aids in the transcription of DNA into RNA during transcript in the nucleus. The enzymes prevent many genetic mutations from being expressed.
Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis during replication as the DNA polymerases cannot begin the synthesis of the new strand, they only extend it after primase begins it and primase produces RNA molecules, the enzyme can be said to be a type of RNA polymerase.
Therefore, The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed. Thus, the option C is correct.
Learn more about genetic mutations on:
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I have a test in a couple days and I still don’t know how to do this stuffsomeone teach mee
!(points given)!
What is the role of transport
proteins in active transport?
Please help asap!! :)
Which nitrogen-containing substance is formed when amino acids are broken down?
Answer:
Urea
Explanation:
Urea is produced in the liver and is a metabolite (breakdown product) of amino acids.
Which of the following is a compressional/longitudinal wave?
А
water
B
fans doing the "wave" in a football stadium
С
light
D
sound
Answer:
D. Sound
Explanation:
Both А. water and B. fans doing the "wave" in a football stadium are both literal waves and are not examples of a compressional/longitudinal
Answer:
the answer is sound
Explanation:
a sound wave in longitudinal
How is it that all cells have the same DNA, but there can be many different types of cells?
Answer:
each cell deploys its genome and play different role
Explanation:
Each of the following can kill pathogens in the body, except:
A Vaccines
B Antibodies
C Leukocytes
D Antibiotics
Answer:
A. Vaccines
Explanation:
These are meant to prepare the body for the possibility of infection by building up immunity.
Have a great day!
The best determination of a community’s quality of life is _______.
What is the effect of photosynthesis in the carbon cycle?
Select one:
It adds carbons to the atmosphere in the form of carbon dioxide.
It removes carbon from the atmosphere and stores it as water.
It removes carbon from the atmosphere and stores it as glucose.
It adds carbon to the atmosphere in the form of glucose.
URGENT!
Answer:
option C is correct answer of this question
identify 3 conditions that can develop from having or missing chromosomes
Answer:
1. Down Syndrome - Caused by an extra copy of chromosome 21
2. Klinefelter Syndrome - Boys with extra x chromosome(s)
3. Turner Syndrome - Girls lacking a second x chromosome
PLEASE HELP
How are isobars used by meteorologists?
Answer:
Isobars are lines of constant or equal pressure on a weather map. They can be used to find areas of low or high pressure over a broad area (like the U.S.), and they can tell us how intense the system may be.
Explanation:
How might an animal species be different in various habitats
Answer:
they adapted to their climate
Explanation:
Answer:
hey adapted to their climate
Explanation:
Above
Please help me I really need help I am having a hard time with this question.
Answer:
I would prefer to have city water because you don't have to worry about it getting polluted unlike well water. The city water is maintained by the city while with the well water, you maintain it yourself. Even though it can be pricey, most people live in the city anyway, so there is easier access to it.
Explanation:
Answer:
Well Water
Explanation:
I would prefer well water, because city water had a lot of chemicals, and city water filters out minerals that are good for the body. Also, well water tastes ten times fresher than city water. Also, well water is easy to obtain if you already have a well, all you have to do is wither pump it up, or use a basket to scoop some out.
Pepsin is an enzyme produced in the stomach. Pepsin has an optimum pH that is very acidic, between a pH of 1.0 and 2.0. In an
experiment involving the enzyme pepsin, the pH is raised from 2 to 11. What will be the MOST LIKELY effect of this on the reaction?
Explanation:
the pepsin enzyme will not be able to work in a basic medium when ph raised from 2 to 11 it's efficiency will be affected and will not be in a condition of digesting protein .
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you .
When the pH is raised from 2 to 11 the most likely effect on the reaction is ;
The rate of reaction will decrease/delayed
Given that Pepsin enzyme has an optimum pH of 1.0 to 2.0, it will perform efficiently as a catalyst in an experiment whose pH levels fall within the range of the optimum pH of Pepsin.
Pepsin enzyme accelerates the digestion of proteins therefore when the pH levels are raised above 2.0 the efficiency of Pepsin enzyme will be negatively affected and the digestion of protein will require a higher activation energy.
Hence we can conclude that When the pH is raised from 2 to 11 the most likely effect on the reaction is The rate of reaction will decrease/delayed.
Learn more : https://brainly.com/question/24420086
Did y'all know grapes r toxic to doggos? Like how did I not know this? *~*
Answer:
lol yes
Explanation:
i knew. usually sweet things are
How did the temperature relate to the “recommended temperature limit” (solid horizontal red line)?
Will give extra points for right answer or explanation
Answer:
The “recommended temperature limit” represents limit of the temperature that is good for our world.
Explanation:
The temperature related to the “recommended temperature limit” means that in the graph there is a limit of temperature for our world's environment. if the temperature is between this limit, there is less or no adverse effect on our environment while on the hand, if the temperature exceeds from this limit, then it adversely affected our world because the emission of carbondioxide gas in the atmosphere increases due to this increase temperature..
PLEASE DO NOT COPY OFF ANY WEBSITES ANSWER IN YOUR OWN WORDS
Why have organisms evolved to have vestigial body parts?
Answer:
Structures that have lost their use through evolution are called vestigial structures. They provide evidence for evolution because they suggest that an organism changed from using the structure to not using the structure, or using it for a different purpose..
Hope it will help :)
Explanation:
What can form volcanoes as the two plates push apart and magma is able to rise up from the
ground and form new ocean crust?
A
convergent
B
Hot spots
C
Transform plate boundaries
D
Divergent plate boundaries
Answer:a
Explanation:
Answer: the correct answer is d
Explanation:
please I need help !
Answer:
I think D.) More cobs on plants
Explanation:
If it ain D then it's C
Name two types of pathways that help a body maintain homeostasis, and an example of each.
Answer:
Explanation:
The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure. If the water level gets too high, the urinary system produces more dilute urine (urine with a higher water content) to help eliminate the excess water.
Answer:
The receptor and afferent pathway are pathways that help the body stay n homeostasis. An example of the receptor is like temperatures in your skin. An example of Afferent pathways are sensory neutrons.
Explanation:
When looking through a miscrcope you see a single celled organism. You don't see any nucleus on this organism, this organism is most likely
an Eukaryote.
True or false?
Answer:
True
Explanation:
HELP PLEASE WILL GIVE POINTS FOR VOLCANOS DRAG AND DROP USE ATTACHMENT PLEASE
Answer:fissure (g) evacuate (b) magma (c) lava (h)
Explanation:
which type of reproduction produces offspring with more genetic variation?
Answer: Sexual reproduction!
Explanation: hope i helped! <3
Answer:
Sexual repduction provides genetic diversity
EXPLANATION:
because the sperm and egg that are produced contain different combination of than the parant organisation.
help help pls will mark brainliest if i can
brain-nucleus
skin- cell membrane
stomach- mitochondria
blood- cytoplasm
What is the relationship between changing co2 concentration and temperature?
Answer:
When the carbon dioxide concentration goes up, temperature goes up. When the carbon dioxide concentration goes down, temperature goes down.
Explanation:
help please, i am confused
Answer:
a. acquired trait
b. adaptation (inherited trait)
c. adaptation (inherited trait)
d. acquired trait
Can anyone help me please I need this in a few mins
When measuring the brightness of a star, what is a limitation of using apparent magnitude rather than absolute brightness?
Apparent magnitude does not use the star's color or temperature.
Apparent magnitude is only theoretical, thus its value cannot be directly measured with equipment.
Apparent magnitude does not take into account the fact that not all stars are the same distance from Earth.
Apparent magnitude is only on a comparative scale that determines how bright a star looks from a theoretical distance of 32 light-years from Earth.
Answer:
D. Apparent magnitude is only on a comparative scale that determines how bright a star looks from a theoretical distance of 32 light-years from Earth.
Explanation:
I majored in Biology
Answer:
Yea what the first guy said.
Explanation: