Answer:
Basal Layer
Explanation:
Melanocytes are found in the basal layer of the epidermis. These cells produce a pigment called melanin, which is responsible for different skin color. Melanin is packaged into small parcels (or melanosomes), which are then transferred to keratinocytes.
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AP Science Practice Question
A particular enzyme has an optimal temperature of 37°C and begins to denature at 45°C. During
denaturation, entropy increases (the protein loses much of its organization). The protein also
increases its energy content (energy must be absorbed from the surroundings to break the
numerous weak bonds that reinforce the native conformation). Thus, for denaturation, AS and
AH are both positive. Using the free-energy equation (AG = AH - TAS), explain why
denaturation becomes spontaneous at a certain temperature.
Denaturation becomes spontaneous at a particular temperature when TΔS > ΔH therefore ΔG becomes negative.
An enzyme is a biological catalyst that promotes various reactions in the body. Enzymes are proteins. There is an optimum temperature within which proteins functions effectively. Beyond this limit, the ability of the protein to function effectively is greatly hampered.
The free energy equation is ΔG = ΔH - TΔS. Since the energy absorbed increases, the entropy increases and the temperature increases, it follows that a point comes when TΔS > ΔH therefore ΔG becomes negative and denaturation becomes spontaneous at a certain temperature.
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The atria are the ""upper""chambers of the human heart. What are ""lower"" chambers of the human heart called?
Answer: The lower chamber of the human hear is called ¨ventricle¨ one ventricle on both the lower right and left sides of the heart
Explanation:
Ventricular Dyssynchrony | Cedars-Sinaihttps://www.cedars-sinai.org › diseases-and-conditions › v..
circulating hormones are mostly taken up and degraded by the _________ and the __________.
Answer:
where the picture
Explanation:
plss asan po acc picture
Suppose you remove the rabbits, grasshoppers, birds, and mice ( the herbivores) from a food web that also includes grass, mushrooms, lizards, and hawks. Which organisms would be affected and how?
If you remove the herbivores from a food web that also includes grass, mushrooms, lizards, and hawks, the organisms that would be affect are lizards, and hawks.
A food web shows all the possible feeding relationships in an ecosystem. Recall that there is an interconnection between organisms which involves exchange of matter and energy through feeding relationships.
In the food web, the grass is the producer, the herbivores are the primary consumers and the carnivores are the secondary consumers. These secondary consumers eat the primary consumers.
Lizards eat grasshoppers and hawks eat birds. When these are removed from the food web, the Lizard and Hawk are most affected because they will starve owing to lack of prey.
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Order the following events that happen to create a pyrocumulus cloud.
First:
second:
last:
answer choices:
( put them in order for the first second and last pls!)
cooler temperatures cause moisture to condense.
heat causes air particles to become less dense.
Convection causes moisture in the air to move upward quickly.
If the measures of two angles of a triangle are 91 and 11°, what is the measure of the third angle?
HERR
The measure of the third angle isº. (Simplify your answer.)
Answer:
If I understood your question in the right way, 78°
Explanation:
Cuz, the sum of all 3 internal angles of a triangle is 180°.
180°=91°+11°+x
180°-(91°+11°)=x
78°=x
The movement of water across a cell membrane that does not require
energy is called what?
according to the induced fit hypothesis of enzyme catalysis, _____.
Answer:
the binding of the substrate changes the shape of the enzyme's active site
Explanation:
According to the induced fit hypothesis of enzyme catalysis, the shape of the active site of an enzyme changes in response to the binding of a substrate molecule.
What is induced fit hypothesis of enzyme catalysis?The active site, which is the region of the enzyme that interacts with the substrate, adjusts its shape to fit the substrate more snugly. This change in shape enhances the formation of the enzyme-substrate complex, leading to more efficient catalysis and faster reaction rates.
The induced fit hypothesis suggests that the active site is not a rigid structure, but rather, is flexible and dynamic, adapting to the substrate to optimize the reaction.
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how do you know that the gene being transcribed in the animation is in a prokaryote?
Answer: The initiation of transcription involves a sigma factor
Explanation:
quizlet
HELP PLS LAWD HAVE MERCY
c decrease
Explanation:
bc it can't increase if it's going donw
Answer:
its d
Explanation:
what are restriction fragment length polymorphisms?
Answer:
difference in homologous DNA sequences
Explanation:
Restriction Fragment Length Polymorphism (RFLP)is a difference in homologous DNA sequences that can be detected by the presence of fragments of different lengths after digestion of the DNA samples in question with specific restriction endonucleases.
Why does water have a strong surface tension and why is this important?
The stronger the cohesive force, the stronger the surface tension. The water molecule has two hydrogen atoms bond to an oxygen atom through covalent bonding. ... Formed bonds are called hydrogen bonds which lead to strong cohesive forces between the water molecules and high surface tension of water.
Why is it important?The surface tension of water provides the necessary wall tension for the formation of bubbles with water. The tendency to minimize that wall tension pulls the bubbles into spherical shapes. Surface tension and droplets: Surface tension is responsible for the shape of liquid droplets.
of the 30,000,000 species on earth, how many are lost each hour?
Which one should I click ?
Answer:
the third one
Explanation:
higher concentration means more of that substance in a certain volume
PLEASE HELP DUE SOON 40 POINTS!
Answer:
earth's atmosphere
Explanation:
The descriptions below explain two ways that water is used by plants on a sunny day.
I. In a process called transpiration, some liquid water in leaves changes to water vapor. The water vapor is released into the air through tiny pores in the leaves. This allows more liquid water from the soil to be pulled up the roots and stem to replace water lost from the leaves.
II. Plants use some of this water in leaves in a process called photosynthesis. During photosynthesis, water and carbon dioxide break apart and recombine to form two new substances, oxygen, and glucose.
Based on the above description of transpiration and photosynthesis, which type of change happens to water during each process?
A. In transpiration, because some of its properties change, water undergoes a physical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a chemical change.
B. In transpiration, because some of its properties change, water undergoes a chemical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a physical change.
C. In transpiration, because its physical properties change, water undergoes a physical change and loses its identity. In photosynthesis, because it keeps its identity, water undergoes a chemical change.
D. In transpiration, because its chemical properties change, water undergoes a chemical change and loses its identity. In photosynthesis, because it keeps its identity, water undergoes a physical change.
Answer:
I thinks its A but not 100%
Explanation:
Scientist prefer to use the term global warming because it
encompasses all the issues caused from an increase in the Earth's temperature.
True
False
olfactory information is first received by which part of the brain?
Answer:
the cerebrum.
Explanation:
what are the names of the membranes that cover the brain and spinal cord
What are the products of the light reactions used for during in the dark reactions of photosynthesis?
Answer:
sugar molecules and other organic molecules necessary for cell function and metabolism
Explanation:
dark reaction takes place in the stroma
stroma is aqueous fluid surrounding the stacks of thylakoids and the cytoplasm
thylakoids convert light energy to chemical energy
Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane
The rate at which particular type of cell divides is linked to the body‘s needs for that type of cell skin cells are typically exposed to more damaging conditions and liver cells skin cells must be replaced more often in liver cells therefore which of these statements is true
Answer:
Skin cells divide more often than liver cells
Explanation:
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those who operate fisheries need to be concerned about all the following except
A. Disease
B. Nutrition
C. Water Quality
D. Natural Predators
Answer:
D. Natural Predators.
Which foods would contain mostly unsaturated fats
Answer:
avocados and avocado oil.
olives and olive oil.
peanut butter and peanut oil.
vegetable oils, such as sunflower, corn, or canola.
fatty fish, such as salmon and mackerel.
nuts and seeds, such as almonds, peanuts, cashews, and sesame seeds.
Explanation:
HEY GIRL!!!!!!
most land-dwelling invertebrates and all of the amphibians ________.
Answer:
All amphibians and most land-dwelling invertebrates are ectotherms
Explanation:
All amphibians and most land-dwelling invertebrates are ectotherms whose internal temperatures vary with environmental conditions. This means their energy requirements are lower than those of mammals and birds.
A plant cell is placed in a salt solution, and the following observation is recorded:
A normal plant cell is on the left. The plant cell wall is visible, and the internal structure fills the cell up to the cell wall. In the middle is an arrow pointing from left to right. On the right is a plant cell. This plant cell has a cell wall the same size as the first plant cell, but the internal structures are shrunken in comparison to the first cell.
Which answer choice describes the most likely concentration of the solution?
Hypertonic
Hypotonic
Isotonic
Osmotic
Answer:
Explanation:
a simple way to look it it is:
Hypertonic would be when the insides are shrunk (arrows point out)
Hypotonic when its full (Arrows point in)
Isotonic is at balance (arrows point out and in)
osmotic: the passage of a liquid through a membrane from a less concentrated solution to a more concentrated one (equal concentrations)
Although I'm not sure which image I'm supposed to be describing, but hope it helps you figure out the answer
Which phrase describes transmutation?(1 point) the conversion of protons to neutrons through nuclear changes the conversion of one substance to another through chemical changes the conversion of an atom of one element into a different element through nuclear changes the conversion of energy to matter through chemical changes
Answer:
B
Explanation:
PLEASE MARK AS BRAINLIEST!!!!!Transmutation is conversion of an atom of one element into different element through nuclear changes.
Transmutation consists of the conversion of stable nuclei into other nuclei if they are bombarded by fast particles.
Specifically, an atom can be transmuted by making particles or atoms collide with it at high speed, that is, to accelerate a particle is to increase its speed by some mechanism that imparts energy to it.
Thus, the transmutation of an element requires that there be a change within its nucleus, and in particular in the number of protons.
The neutrons or protons must have enough energy to overcome the nuclear forces that prevent their passage or exit from the nucleus of the atom to be transmuted.
Therefore, we can conclude that transmutation is conversion of an atom of one element into different element through nuclear changes.
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Which is NOT a characteristic of life?
Answer:
B. breathing is not a characteristic of life
Explanation:
hope this helps
biologists think that endosymbiosis gave rise to mitochondria before plastids partly because:
Explain the external morphology for external structure of mosquito.
I hope that's what you're looking for...
Answer:
Explain the external morphology for external structure of mosquito.
Explanation:
Morphology: Mosquitoes have a slender, delicate and long legged body measuring 3-4mm in length. The body is divisible into 3 parts: head, thorax and abdomen. The head is globular and highly mobile on slender neck. It bears a pair of compound eyes, antennae and mouthparts. The mouthparts are ofpiercing and sucking type. There is a pair of mandibles, a pair of maxillae, labium, labrum and epipharynx and hypophaynx. The thorax is made up of 3 segments; each segment bears a pair of legs. The legs are long, slender and delicate.
after the blood leaves the heart, through what kinds of vessels and in what order does the blood move?
Answer: the pulmonic valve, into the pulmonary artery and to the lungs.
Explanation: