what is the answer? for this

Answer:

Eukaryots.

They have a well defined nucleus and memebrane bound organelles.

Answer:

Increase in [NAD+] inhibits Pyruvate dehydrogenase kinase (PDH kinase)

Increase in [NADH] activates Pyruvate dehydrogenase kinase (PDH kinase)

Coenzyme A inhibits Pyruvate dehydrogenase kinase (PDH kinase)

Acetyl-co A activates Pyruvate dehydrogenase kinase (PDH kinase)

ADP inhibits Pyruvate dehydrogenase kinase (PDH kinase)

Explanation:

Pyruvate dehydrogenase kinase, PDK is an enzyme which acts to inhibit the activity of the enzyme pyruvate dehydrogenase by phosphorylating it using ATP. It mechanism of action is by catalyzing the phosphorylation of a specific Ser residue on the E1 subunit of the pyruvate dehydrogenase complex, rendering it inactive. By inhibiting the activity of the pyruvate dehydrogenase complex, PDK will decrease the oxidation of pyruvate to acpcetyl-coA and CO₂ in the mitochondria and increase the conversion of pyruvate to lactate in the cytosol.

Since pyruvate dehydrogenase complex is activated by either an increase in the concentration of one or more of ADP, NAD+ or CoA-SH, its inhibitor pyruvate dehydrogenase kinase is inhibited by ADP, NAD+, CoA-SH and pyruvate. However, PDK is activated by increase in the concentration of ATP, NADH and acetyl-CoA.

Therefore, the correct answers are:

Increase in [NAD+] inhibits Pyruvate dehydrogenase kinase (PDH kinase)

Increase in [NADH] activates Pyruvate dehydrogenase kinase (PDH kinase)

Coenzyme A inhibits Pyruvate dehydrogenase kinase (PDH kinase)

Acetyl-co A activates Pyruvate dehydrogenase kinase (PDH kinase)

ADP inhibits Pyruvate dehydrogenase kinase (PDH kinase)

Answer:

.

Explanation:

Answer:

The correct answer is -

1.1 A. herbivore - greenfly

b. producer - rose

1.2. 1 kJ/m2/year

1.3 rose plants will increase, ladybirds will decrease, blackbirds will decrease.

Explanation:

In this food chain,

Rose >>Greenfly >>Ladybird >>Blackbird

Rose plants are the producers as they generate their food and energy and does not depend on other organisms where as greenfly are the primary consumer or herbivore as they depend on the rose plant for their food and energy only, however, ladybird as secondary consumer and blackbird as tertiary consumer depend on greenfly and ladybird respectively.

If rose plants have 1000 kJ/m2 /year of energy and as it is known that only 10% moves to the next tropic level then blackbird would have:

rose = 1000

greenfly = 1000*10/100= 100 kJ

ladybird = 100*10/100 = 10kJ

blackbird = 10*10/100 = 1 kJ

If greenfly removes from here the rose plant will increase as these depends and eat rose plants and lady bird will decrease as these are the primary source of food for lady bird and if ladybird decrease blackbird also decrease.

Answer:

The substance which can be easily decomposed by natural decomposers is called as biodegradable wastes such as humans and animal excreta, plant wastes.

Explanation:

because am cool

Answer:

it. can be biodegradable hope this helps

a chemical reaction plants use to create food

Answer: cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen

Explanation:

i hope this help

Answer: because, humans can't/don't regenerate in the same way

Explanation:

Plants excel in regenerating new parts due to factors like meristematic tissues, totipotency, indeterminate growth, and unique genetic traits. These enable continuous cell division, organ regeneration, and lifelong growth, while human regenerative abilities are more limited and specialized.

Plants have the remarkable ability to grow new parts due to their unique characteristics and physiological processes. While humans and other animals also have the ability to regenerate certain tissues and organs. Here are a few reasons why plants can grow new parts more effectively:

Meristematic Tissues: Plants have specialized regions called meristems that contain undifferentiated cells capable of continuous division and differentiation. These meristematic tissues are found in areas such as the tips of roots and shoots, allowing for continuous growth and regeneration. In contrast, humans have limited areas of active cell division, such as the bone marrow and the skin's basal layer, which restricts our regenerative capacity.

Totipotency: Plant cells have a higher degree of totipotency, meaning they have the potential to differentiate into various cell types and give rise to a whole plant. This property allows plants to regenerate entire organs, such as roots, stems, leaves, and even whole plants from small tissue pieces. In humans, cell differentiation is more specialized and limited, making it challenging to regenerate complete organs.

Indeterminate Growth: Most plants exhibit indeterminate growth, meaning they can grow throughout their lifespan. This continuous growth allows plants to replace damaged or lost parts by generating new tissues and organs. In contrast, humans and animals typically have determinate growth, where growth ceases or significantly slows down after reaching a certain size or age.

Hence, plants grow, but humans can't grow.

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Answer:

D

Explanation:

A shell is considered as biotic (living) because it is a hard, rigid covering of many animals such as snail, sepia, pila, turtles, sea urchins. A shell is protective outer layer of these soft bodied animals.

Answer:

1. Ice cube melting into water.

2. Melting butter into a hot pan.

3. Melting of candle.

4. Melting of steel.

5. Melting water into steam (gas).

Hope this helps!

Answer:

Icecream and popsicles melt easily and fast on the hot summer day.

The hot fresh slice of bread made the butter melt smoothly as it was spread.

When it snows the kids put out their hands out to catch the chilly little snowfalkes and watch them quickly melt away.

To make the fine pieces of decorative glass, you must melt the glass and work with it very quickly, once it starts to get cold, it can easily break.

As the warm candle burns and fills the room with its alluring scent, the wax melts away to reveal more of the candle wick.

Answer: Area z

Explanation:

Answer:

A tripeptide

Explanation:

Alanine (Ala), Glycine (Gly) and Valine (Val) are amino acids, i.e., organic molecules that contain at least an amino (–NH2) and one carboxyl (–COOH) functional group. The amino acids held together by peptide bonds, which are formed by a carboxyl group of one amino acid and an amino group of another one, in order to form a peptide. Thus, a tripeptide is a peptide composed of three amino acids joined by two internal (and sometimes three) peptide bonds. In the case above described, the tripeptide formed by the binding of Glycine, Alanine, and Valine can be abbreviated as Gly-Ala-Val (i.e., in this order).

Answer:

C. Non point source pollution

Explanation:

Non point source pollution occurs when rain and snowmelt pollute rivers, streams, lakes, marshes, and groundwater. Therefore, option (C) is correct.

A distributed contamination of water or air that does not originate from a single discrete source is referred to as nonpoint source pollution. The presence of this kind of pollution is frequently the result of the accumulation of the effects of smaller amounts of contaminants that have been gathered from a larger area.

Oil, pet waste, pesticides, herbicides, fertilizer, road salt, bacteria, silt, and any other contaminant that ends up on the ground naturally or as a result of human activity are all examples of nonpoint source pollution. Nonpoint source pollution arises from diffuse sources.

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Answer:

????

Explanation:

Hey! I hope you had a great day so far :)

But uh...

I cannot answer that question for you.

There are no "stars" and definitely no graph on a file attached.

Sorry!

Helper's Message:

Hey, I hope you can give me a Brainliest :)

-ChocoChocoCho

Answer:

?????

Explanation:

you didn't add the graph but I'm sure that you will figure the answer out I believe in you. have a great day and 2022

Answer:

The correct answer is - e. many different molecules form a signaling cascade.

Explanation:

Signal transduction is the number of events that take place inside the body of a human from the external atmosphere to transmitting a chemical or physical signal through a number of molecular events of signaling cascade.

The transmission of the particular chemical or physical signal is caused a sequence of phosphorylation events inside the cell it involves specific protein receptors and different types of molecules.

Answer:

5’ TCCAGTCCA 3’

Explanation:

The correct complementary DNA strand for segment 3’ AGGTCAGGT 5’ is 5’ TCCACTCCA 3’. Thus, the correct option for this question is D.

A complementary DNA strand may be defined as a type of DNA strand in which the series of the constituent molecules on one strand of the double-stranded structure is chemically similar to the sequence on the other strand.

According to Chargaff's rule, the complementary DNA strand is formed with the concept of base pairing, where Adenine is complementary to Thymine and cytosine is complementary to Guanine.

Due to this, A=T, G=C, G=C, T=A, C=G, A=T, G=C, G=C, and T=A. This matches option four given in the question.

Therefore, the correct complementary DNA strand for segment 3’ AGGTCAGGT 5’ is 5’ TCCACTCCA 3’. Thus, the correct option for this question is D.

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Answer:

In this case, it is likely that the polypeptide chain assumed an alpha helix configuration because the lipid bilayer did not have beta-barrel proteins.

Explanation:

A polypeptide chain is naturally polar, however, a lipid bilayer is naturally non-polar. This makes it difficult and even prevents the polypeptide chain from crossing a lipid bilayer, since the composition of these two elements does not allow them to mix. In that case, the polypeptide chain has two options to take to successfully cross the lipid bilayer.

The first option that the polypeptide chain has is to allow the creation of twisted beta sheets in the shape of a closed barrel in its structure. This only works if the lipid bilayer has beta barrel proteins in its composition to act as a transport channel for the polypeptide chain. However, few lipid layers have this protein.

Most likely, the polypeptide chain assumes an alpha helix conformation to cross lipid bilayers that do not have beta-barrel proteins. By assuming the beta conformation, the polypeptide chain reinforces the hydrogen bonds present in its composition, allowing it to cross the lipid bilayer without having its conformation and structure disassembled.

Answer:

just think of the food chain

Explanation:

example the lion and the antelope

Answer:

yes

Explanation:

Hair contains DNA of the criminal. DNA is unqiue to everyone, no one is ever simialr in DNA to eachother. So if a hair sample is found, then testing it would provide a great piece of evidence.

Answer:

yes because if the body is unditfied they can always take a hair sample and run it but if it is the killers they run it to see if it has dna strands and then if they find something they will get the suspect in and take a piece of their hair to see if it is the perfect match

Explanation:

Answer:

C

Explanation:

There are 4 zeros, which fits the "at least three" criteria.

X plus a number means the root is negative on the graph, so all roots are negative.

(x+3) occurs twice meaning it has a multiplicity of 2.

The gastrointestinal tract is absent in

Answer: Skeletal muscle is a heavy consumer of energy.

Answer:

Origin: L. Infinitas; pref. In- not – finis boundary, limit, end: cf. F. Infinite. See Finite.

1. Unlimited extent of time, space, or quantity; eternity; boundlessness; immensity. There can not be more infinities than one; for one of them would limit the other. (Sir W. Raleigh)

2. Unlimited capacity, energy, excellence, or knowledge; as, the infinity of god and his perfections.

3. Endless or indefinite number; great multitude; as an infinity of beauties.

4. (Science: mathematics) a quantity greater than any assignable quantity of the same kind.

Mathematically considered, infinity is always a limit of a variable quantity, resulting from a particular supposition made upon the varying element which enters it.

5. (Science: geometry) That part of a line, or of a plane, or of space, which is infinitely distant. In modern geometry, parallel lines or planes are sometimes treated as lines or planes meeting at infinity. Circle at infinity, an imaginary circle at infinity, through which, in geometry of three dimensions, every sphere is imagined to pass. Circular points at infinity. See Circular.

Explanation:

Answer: Chemical energy is converted to mechanical energy that’s used for muscle movements.

Heat energy is converted to mechanical energy that’s used for muscle movements.

Explanation:

According to the  I law of thermodynamics, energy can neither be created cannot be destroyed but it can only change its form. In the given situation, the energy can only be conserved when it is not lost to the environment. The chemical energy is produced in the body in the form of ATP which is converted into mechanical energy to allow the movement of the muscles during running. So, chemical energy is converted into mechanical energy by this way. The heat energy when directly converted into mechanical energy to induce the movement of muscles the energy will remain conserved and will not lost to the environment.

Answer:

Chemical energy is converted to mechanical energy that’s used for muscle movements.

Heat energy is converted to mechanical energy that’s used for muscle movements.

Explanation: