Answer:
an amino acid with a C=O group is replaced by an amino acid with an O-H group
Explanation:
When an amino acid is substituted by another with opposite properties the replacement will modify the structure (and consequently also the function) of the resulting protein. For example, it is expected that the replacement of amino-acid residues with different solubility will alter the protein’s structure and this protein will establish different interactions with water, cell structures, or further segments of the protein. Therefore, in the cases above enumerated, only C-O and O-H groups have similar properties (i.e. they are hydrophilic and have polar bonds), and thereby it is expected that this replacement has no significant incidence on the protein’s structure and function.
The two types of reproduction are
and
Answer:
s
e
x
u
a
l
(animals)
and
a
s
e
x
u
a
l
(plants)
Question 21
As human migrated away from the equator, what may have been a selective
pressure against more melanin?
Cold weather and too much body hair
Lower UV radiation and more DNA mutations
Higher UV radiation resulting in more vitamin D synthesis
Lower UV radiation resulting in less vitamin D synthesis
Answer:
Higher UV radiation resulting in more vitamin D synthesis.
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Explanation:
Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years.
Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years.During exposure to sunlight 7-dehydrocholesterol in the skin absorbs UV B radiation and is converted to previtamin D3 which in turn isomerizes into vitamin D3.
What happens at subduction zones? A. sediment is deposited by ocean waves B.new land is formed from eroded soil C.an oceanic plate sinks below a continental plate D.two crustal plates move away from one another
Answer:A
Explanation:
Just had it
Answer:
a
Explanation:
During which process do water molecules bond with elements in the minerals that make up rock to form new substances or solutions?
A. Hydration
B. Hydrolysis
C. Abrasion
D. Deflation
Answer:
A.) Hydration
Explanation:
hydrolysis is when you pass a current through water and break the molecules apart, abrasion is using an abrasive to cut material off, and deflation is taking a gas out of something. also if you think about how they word it, the waters kinda dissolving the rocks, what's another way to describe something dissolving in water, or soaking it all up...hydration
Answer:
Hydration
Explanation:
During hydration, water molecules are added to existing bonds without breaking them. Hydrolysis breaks the existing bonds. Deflation and abrasion are processes related to wind erosion.
help (like right now)
Answer:
C after fossil Y there were few new type of organisms
Where do hazardous wastes usually end up?
O A. In sanitary landfills
B. In storage
C. In compost bins
O D. In incinerators
Answer:
its most likely A, in sanitary landfills
3. Which condition is constant?
O the soil
O the amount of sunlight
O the type of plant
all of the above
Answer:
c.............
Explanation:
The term
describes the route of administration in which when a drug is placed under the
tongue and quickly absorbed in the blood vessels.
red
00
en
The term what describes the route of administration in which when a drug is placed under the younger and quickly absorbed in the blood vessels
Answer:
sublingual and buccal routes
hello I really need help with this please
Answer:
C. 1050 cm3
Explanation:
Add "evaporation from skin and sweat" together, then subtract it from "urine" because water lost from the kidneys is literally urine
How can a single fertilized egg cell generate so many different cell types?
how do the fundamental forces work together in a roller coaster
Answer:
Atoms themselves are composed of three different types of particles—protons, neutrons, and electrons. A proton carries one unit of positive† charge (Dufay's vitreous electricity) and an electron carries one unit of negative charge (Dufay's resinous electricity). A neutron carries no charge; it is neutral.
Explanation:
Hitting the skin with a needle is an example of a(n)
a. involuntary reaction.
b. depressant
c. stimulus.
d. response
Answer:c
Explanation:hve a great day
Why is it warm in the summer and cold in the winter?
Answer:
during the summer we are facing the sun so in the winter we are facing away
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Which cerebral lobe is represented by the label B? (2 points)
Temporal
Frontal
Occipital
Parietal
Answer:
Temporal.
Explanation:
C is frontal lobe, A is cerebellum, D is parietal and the unlabeled one is occipital.
Answer:
A. Temporal.
Explanation:
How does a primary air pollutant become part of the atmosphere.
which of the following best describes the conditions on earth over 4 bilion years ago?
Answer:
Based on the very old zircon rock from Australia we know that the Earth is at least 4.374 billion years old.
Which of the following is an example of an adaptation?
Answer:
B
Explanation:
The butterfly formed those adaptions so predators are less likely to eat it
hope this helps
Describe the process of transcription involve RNA polymerase.
PLEASE HELP WILL AWARD BRAINLIEST!Which of the following processes occurs when nuclei begin to surround the chromosomes on either end of the pole during Meiosis l?
1)Prophase 1
2)Metaphase 1
3)Anaphase 1
4)Telophase
Answer:
Anaphase 1 occurs when the nuclei begin surrounding chromosomes on either end of the pole.
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1. Many species of field mice can reproduce several times a year and produce
litters with multiple offspring. However, an ecologist noted that the population size
of mice in a California grassland remains stable from year to year. The factors that
keep natural populations from increasing are collectively called
A. X-factor.
O B. limiting factors.
O C. carrying capacity.
O D. birth, death, immigration, and emigration.
Answer:
Limiting Factors
Explanation:
limiting factors determine a habitat's carrying capacity. hence the factor that keep natural population from increasing are collectively called limiting factors. Thus option B is correct.
What do you mean by carrying capacity of a species ?In an ecosystem the number of organism can survive successfully under certain resources referred as carrying capacity.
If a species population exceeds the environment's carrying capacity, the population depletes due to less availability of resources.
Several factors influence an environment include availability of food which is paramount for the survival of a species.
Water is the another essential factor which help animal in food digestion, regulate body temperature and elimination of waste products.
Ecological Conditions of an environment have an effect on carrying capacity of environment.
Space is another factor that provide a shelter to animals for survival and reproduction.
Thus option B is correct.
Learn more about carrying capacity, here:
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I need help with this
Answer:
Horses slowly developed over time.
Explanation:
The diagram shows the evolution of horses - how they slowly developed over time. Just like humans and other species, they didn't appear suddenly. They had to go through many stages of development, from the existence of the hyracotherium, their extinct ancestor, to today.
The rest of the options are incorrect as:
As previously mentioned, new species don't just suddenly appear.There is nothing about embryological development in the given diagram.There is nothing about other hooved animals in the given diagram.Which map feature best indicates whether two regions have the same elevation?
contour
relief
slope
symbol
Answer:
Contour
Explanation:
A contour line connects positions of equivalent height above that of a specific level of map-making, such as the mean level of the sea. A contour map represents represented with contour lines, such as a topographical map showing mountains and valleys and the thickness or gentleness of mountains, for example.
Answer:
A
Explanation:
Because I said so
Based based on the model what will the mean diameter of the phytoplankton cells that are found 25 km from shore
Answer:
650 micrometers
Brainliest?
Explanation:
what type of consumer is the scorpion?
Answer:
a carnivore
Explanation:
a carnivore, but to be more specific, a secondary consumer.
PLEASE HELP I REALLY NEED SOMEONE TO ANSWER!!
How many organisms in the food web
feed on the mice?
Answer:
B
Explanation:
Only the Owl and the Snake feed on the mice, SO answer B "2" is correct
Why are triceps brachii called triceps brachii and biceps brachii called biceps brachii?
Answer:
The Triceps Brachii muscles are located on the back of the humerus and more commonly referred to as the triceps. They derive their name from a Latin phrase meaning “three headed arm muscle”, due to the fact that the triceps muscles have three muscle heads and therefore have three separate origin attachment points.
Explanation:
16. Based on the graph, what is the carrying capacity for crabs in the area being studied. Propose a reason that the population dropped in 2010
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i need help now.
pls.
which is a tissue?
Answer:
C
Explanation:
even though it looks like an average guy your skin is a tissue, you can also hover over it and says what the pictures are.
Answer:
c
i did the test
lol
hope it helps
Explanation:
why is it beneficial for DNA to transition from free floating DNA to a chromosome form during the cell cycle?
Answer:
During the cell cycle, the transition of DNA from its free form to chromosome is beneficial because it allows the equitable division and transmission of genetic information to the daughter cells.
Explanation:
In eukaryotic cells, DNA contains all the genetic information of an individual and is found in the cell nucleus. The way the DNA is found while the cell is in interphase —period without division— is free form, associated with histone proteins, called chromatin.
When cell division occurs, the DNA must replicate and right at the beginning of the division process the chromatin condenses, forming chromosomes. These chromosomes contain the genetic information compartmentalized into genes, making it easier to distribute it equally to each daughter cell.
The main benefit of the condensation of chromatin - nuclear DNA - into chromosomes is to achieve the equitable distribution of genetic information and its transmission to each daughter cell.