During which year does a baby girl's height increase most rapidly?

Answer:

The answer is k = −11

Explanation:

f(−2)= 0

f(−2)= − 8  −  24  −  2 k  +  10  =  0

2 k = -22

and finally; k= −11

DNA replication is modelled after the semi-conservative replication process that Watson and Crick first proposed. The two strands of DNA first had to be unwound and separated.

Because each of the two copies of DNA contains one ancient, conserved DNA strand and one freshly created strand at the time of replication, this process is known as semiconservative replication.

While semi-conservative replication creates two DNA helices with one new strand and one old strand in each helix, dispersive replication creates two helices with one new strand and one old strand in each helix.

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Answer:

Explanation:

a.

Actin and myosin, two contractile proteins, make up myofibrils. ATPase activity is present in the myosin head. Troponin tropomyosin complex is displaced by calcium ions, exposing myosin's entire surrounding binding site on actin. Myosin heads execute the power stroke, and detachment of the head is needed for the second cycle. Myosin head detachment is aided by ATP binding & hydrolysis. Since the solution contains AMP-PNP instead of ATP, myosin heads are unable to hydrolyze and detach from myosin-binding sites on actin, thereby preventing contraction.

b.

The active ATPase correlated with both the dynein arms is found in cilia and flagella. Dynein is a motion motor protein family that walks around microtubules. The core of cilia is made up of microtubule bundles linked to the motor protein dynein. In the presence of AMP-PNP, the net reaction will be to stop the ciliary movement by inhibiting dynein motor proteins.

c.

Kinesins and Dyneins, two groups of motion motor proteins with ATPase activity, are involved in axonal transportation. All the motion motor proteins use energy from ATP hydrolysis to transfer secretory vesicles through microtubules. Since the inclusion of AMP-PNP does not supply electricity, vesicular transport does not occur.

Answer: Structure

Explanation: Im pretty sure that the eggs from different living organisms may have different structures and features to it. Ofc there would be similarities but also differences in growth etc.

An adaptation that some plants have to help avoid herbivores is that they are toxic or poisonous (Option B).

A biological adaptation is any particular trait or behavior in an organism that maximizes its evolutionary fitness, i.e. its differential rate for reproduction and survival in particular environmental conditions such as toxicity in plants to avoid predators by enhancing its performance of survival.

Therefore, with this information, we can conclude that a biological adaptation can be associated with toxicity in plants which is required to avoid predators by enhancing plant performance of survival.

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There can be several reasons for differences in enzyme activity, including temperature, pH, enzyme concentration, substrate concentration, and the presence of inhibitors or activators.

Enzymes are biological catalysts that accelerate chemical reactions in the body. The rate of enzyme activity can be affected by various factors, such as temperature and pH. Each enzyme has an optimal temperature and pH range at which it functions best. Deviations from this range can cause the enzyme to denature or lose its shape, leading to a decrease in activity.

Changes in enzyme concentration can also affect activity. An increase in enzyme concentration generally leads to an increase in activity, while a decrease in concentration leads to a decrease in activity. The rate of enzyme activity can also be affected by substrate concentration.

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Answer:

\(\begin{gathered}\huge\bold\purple{Lymphatic Vessels} \\ \\ \huge \end{gathered}\)

Thin vessels, similar to veins, that carry lymph to lymph nodes are called lymphatic vessels or just lymph vessels.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

\( \huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}\)

Answer:

The image above represents C (A watershed.)

Answer:

the correct is c

Explanation:

The genes in the lac operon are expressed when lactose is present and the repressor protein is unable to bind to the operator region.

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Answer:

True

Explanation:

Artificial resources can be used too.

Hope it helps.

Answer:

The most commom tool used to identify a tree is the LEAF - its unique shape, its margin, its colours, its venetion and how the leaves are arranged on the branch, are vital keys to identify a tree. The other most obvious key to identifying a tree is its FLOWERS, if it any.

Explanation:

As a nuclear transcription factor, the CREB binds to the CRE (cAMP response element), controlling the transcription of its downstream substrates.

Which control the survival and metabolism of neurons as well as the expression of various transcription factors and growth factors. A transcription factor called CREB controls several cellular processes, such as differentiation, proliferation, and survival. A number of growth factors and inflammatory signals can activate CREB, which then regulates the transcription of genes with cAMP-responsive elements. Following this, the coactivated CREB protein binds to a CRE region and is subsequently bound to by CBP (CREB-binding protein), enabling it to switch on or off certain genes. The basic leucine zipper domain (bZIP domain) of CREB mediates its DNA binding.

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Answer:

Graded potentials are changes in membrane potential that vary in size, as opposed to being all-or-none.

Explanation:

btw, where are the options?

The statement which correctly describes a graded potential is: amplitude of various sizes.

Graded potential refers to a temporary change in electric or membrane potential of a stimulus with respect to both its size and distance.

Amplitude can be defined as the maximum displacement of a wave when measured from its equilibrium position.

Generally, a graded potential is directly proportional in amplitude to the size of the stimulus that is send as an input due to the following:

In conclusion, the statement which correctly describes a graded potential is amplitude of various sizes.

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Answer: Mollusks  

Explanation:

I think

Answer:

QUESTION:

Please please please help me FAST  FAST

ANSWER:

Squid are members of the class Cephalopoda, subclass Coleoidea. The squid orders Myopsida and Oegopsida are in the superorder Decapodiformes (from the Greek for "ten-legged").

Class: Cephalopoda

Phylum: Mollusca

Subclass: Coleoidea

Superorder: Decapodiformes; Leach, 1817

Explanation:

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Answer:

same

Explanation:

Asexual reproduction gives rise to two physically and genetically identical daughter cells. Thus, the genetic information remains the same.

In asexual reproduction, the daughter cells divide through the process of mitosis, which results in two daughter cells from one parent cell.

In mitosis, the chromosomes which are duplicated segregate into the two emerging cells around which then a nuclear membrane forms. In this case, there is no recombination by crossing-over or chiasmata formation that happens in the case of meiosis.

It is the recombination by crossing-over or chiasmata formation that results in varying genetic information.

Thus, as these processes do not happen in mitosis, genetic information remains the same.

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Answer:

Tree 3

Explanation:

Answer:

Color balance changes the overall mixture of colors in an image and is used for color correction. Generalized versions of color balance are used to correct colors other than neutrals or to deliberately change them for effect.

Explanation:

A chemical reaction occurs in a specific set of conditions. These reaction conditions include Temperature, pressure, pH, catalyst and solvent. From the graph given in the question it can be predicted that the optimum temperature is around 30°C and optimum pH is around 8.

A chemical reaction is a process in which reactants react chemically to form products. A chemical reaction only proceeds under optimal reaction conditions. Optimal reaction conditions include temperature, pH, pressure, particular catalyst and solvent when the rate of reaction is highest.

A change in the optimum condition of any of the reaction condition will decrease the rate of reaction. Rate of a chemical reaction is the rate at which it forms the product. In the given question, when the temperature and pH are less than or more than the optimum conditions the rate of reaction was slower than the rate at optimum condition.

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Answer:

its A

Explanation:

Three sequences, UAG, UGA, and UAA, known as stop codons, do not code for an amino acid. instead' they signal the release of the nascent polypeptide from the ribosome.

Answer:

Hurricanes and droughts

brain, blood. Internal organs like the blood, brain, muscle, etc. of a healthy animal are typically free of germs.

Skin and mucous membranes, which are surface tissues, are continuously in contact with environmental organisms and are therefore easily colonised by different microbial species. Millions of these bacteria, which are also referred to as microorganisms, reside in the human body. All parts of the human body that are exposed to the environment have normal flora (the lungs are the only exception), yet a healthy person's interior organs and bodily fluids are thought to be sterile.  Small bronchi and alveoli in the lower respiratory tract are often sterile because bacteria-sized particles cannot easily enter them.

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Answer:

C. To make energy-carrier molecules like NADPH

Explanation:

In the light reaction of photosynthesis, Photosystem I is the second photosystem which is known as plastocyanin-ferredoxin oxidoreductase or PSI takes place in green plants or other photosynthetic organisms.

It is a protein complex that utilizes the trapped light energy by chlorophyll to produce high energy carriers such as NADPH. NADPH synthesis is a primary role of the PSI.

Thus, C. To make energy-carrier molecules like NADPH

Answer:

C

Explanation:

Answer:

Cell membrane is fluid because individual phospholipid molecules and proteins can diffuse within their monolayer and thus move around.

Explanation:

Interphase is the longest phase of the cell cycle, which is further divided into three stages: G1 (Gap 1), S (Synthesis), and G2 (Gap 2).

G1 Phase: This is the phase where cell is growing and carrying out its normal metabolic functions. During this phase, cell prepares for DNA replication and checks for DNA damage before progressing to next stage.

S Phase: This is the phase where DNA replication occurs and the cell synthesizes new DNA by copying the existing DNA, resulting in two identical copies of DNA.

G2 Phase: This is the phase where cell checks for errors and ensures that DNA replication is complete before entering mitosis.

After interphase, cell enters the M phase or the mitotic phase, which includes mitosis and cytokinesis.

Mitosis: Mitosis is the process of cell division where replicated DNA is separated into two identical nuclei. It is further divided into four stages: prophase, metaphase, anaphase and telophase (PMAT).

Cytokinesis: Cytokinesis is the process of cell division where cytoplasm divides resulting in two daughter cells with identical genetic material.

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The four types of lipids, namely fats, phospholipids, waxes, and steroids, play distinct roles in various biological processes. Fats are primarily involved in energy storage, while phospholipids form the structural basis of cell membranes. Waxes provide protection and waterproofing for plants and animals, and steroids serve as signaling molecules and are involved in various physiological functions.

1. Fats: Fats, also known as triglycerides, are a type of lipid that play a crucial role in energy storage. They are composed of glycerol and three fatty acid chains. Fats are stored in adipose tissue and serve as a long-term energy reserve. During times of energy deficiency, fats are broken down through a process called lipolysis to release energy.

2. Phospholipids: Phospholipids are a major component of cell membranes. They consist of a glycerol molecule, two fatty acid chains, and a phosphate group. The unique structure of phospholipids allows them to form a lipid bilayer in cell membranes, with the hydrophobic fatty acid tails facing inward and the hydrophilic phosphate heads facing outward. This arrangement creates a selectively permeable barrier that controls the movement of substances in and out of the cell.

3. Waxes: Waxes are a type of lipid that serve protective functions in both plants and animals. They are composed of long-chain fatty acids and a long-chain alcohol. In plants, waxes form a waterproof coating on the outer surfaces of leaves, stems, and fruits, preventing excessive water loss and providing protection against pathogens. In animals, waxes are found in structures such as the ear canal, providing lubrication and protection against foreign particles.

4. Steroids: Steroids are a class of lipids characterized by a four-ring structure. They have diverse roles in the body, including serving as signaling molecules and regulating various physiological processes. For example, cholesterol, a type of steroid, is a precursor for the synthesis of steroid hormones such as estrogen, testosterone, and cortisol. These hormones play essential roles in reproduction, development, and metabolism.

Overall, the four types of lipids - fats, phospholipids, waxes, and steroids - each have distinct functions and contribute to various biological processes in organisms.

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Answer:

Because the life cycle resembles to that of other organisms

1-EGG

2-LARVA

3-PUPA

4-ADULTHOOD

Explanation:

Complete question:

Question: Where does variation in a population come from?

1. Observe: Hold your cursor over one of the insects. The two rod-like structures under  the Genotype on the right side of the Gizmo represents chromosomes. The three letters next to  each chromosome represent alleles.

Which alleles does the insect have? ____________________________________________

The alleles carried on an organism’s chromosomes make up the organism’s genotype

Answer:

Explanation:

You will see that each chromatid has three alleles. Next to each allele, you will see which version of the gene is (W). In this particular example, all the alleles are the same, so all of them express white. Both chromatids carry only W alleles.

Think about alleles as an alternative form of the gene. So on this chromosome, we have only three genes but eight possible alternatives, which will be coding for white, red, blue, green, cyan, magenta, yellow, or black. The color expression will depend on the individual´s genotype.

In this case, the selected insect carries only the W allele, and its phenotype is white. The genotype of this insect is WWW WWW.

Note: If you click on any other insect, you will find the same genotype for all of them.

However, consider that depending on the environmental conditions and the selective pressures, these alleles might change. Individuals might carry other alleles that code for another color instead of having only W alleles.

You will find the image in the attached files.

Answer: Yes

Explanation: Monocots produce one cotyledon, while dicots produce two. Because seeds are reproductive structures and thus important to a species' survival, plants have evolved many mechanisms to ensure their survival. One such mechanism is seed dormancy. Dormancy comes in two forms: seed coat dormancy and embryo dormancy

Answer:Plants that reproduce by seeds. Seed plants have special structures on them where male and female cells join together through a process called fertilisation. After fertilisation, a tiny plant called an embryo is formed inside a seed.