During the process of photosynthesis ,energy from the sun is converted into chemicalenergy.
Photosynthesis involves green plants using light energy from the sun to
produce their food ( starch). This process involves series of reactions and it
provides food for consumers in the ecosystem
The product formed is Starch which is a form of chemical energy as it
contains compounds which when broken down gives cells energy.
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whats your name well?????
Answer:
k
Explanation:
Only the strongest animals survive.
B.
Populations change over long periods of time.
C.
Life must come from other life.
D.
Parent organisms pass on traits they have acquired during their lifetime.
Answer: A. Only the strongest animals survive.
The theory of natural selection - the survival of the fittest suggests differential survival and reproduction of the organisms. This means the organisms that have better phenotypic advantage over the others likely to survive and reproduce in the adverse environment. Such phenotypic traits will be passed from the parents to the offspring and will promote the evolution of the species.
On the basis of the above description, the only the strongest animals will survive is the correct option.
Answer:
:p
Explanation:
Answer:
Biuret reagent is the correct answer.
Explanation:
Biuret reagent is used to test the presence of the protein in a solution.
The biuret solution contains
Biuret reagent is a solution that is blue in color and when it reacts with protein the color gets a change to pink-purple due presence of several peptide bonds and when there is no protein present in the solution the color remains blue.
The biuret reaction takes place when the copper II ions placed in the solution as a cupric sulfate gets reduce to copper I ions due to the presence of peptide bonds and the color change is observed from blue to violet.
The biuret reagent is used to test for proteins. A biuret test, also known as a peptide bond test, is a chemical test used to measure the number of peptide bonds present in an analyte.
Biuret reagent consists of NaOH (sodium hydroxide) and hydrochlorofluorocarbons (sulfate) and potassium sodium tartrate. The tartrate is added to the chelate to stabilize the cupric ions.
When pure, the reagent is a pale blue color. However, when the reagent is mixed with protein, the reaction results in a light purple color. The deep blue/purple color is caused by a copper ion complex with a protein amide group.
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B. beginning of multicelled life
C. first appearance of most invertebrates
D. dominance of non avian dinosaurs​
Answer:
C) first appearance of most invertebrates.
Explanation:
The Cambrian Explosion occurred 542 mya. The earliest complex animals arose in the sea at the beginning of the Cambrian Explosion. It would take another half a billion years for mammals to rise. Multicellular life dates back 1.2 bya, but more cpomplex life, such as animals, did not occur until the Cambrian Explosion. In the beginning of the Cambrian Explosion, many soft-bodied animals, such as jellyfish and sea anemones appeared.
Answer:
C
Explanation:
First appearance of most invertebrates
Answer: Amplification cascade
Explanation:
A neurotransmitter is a biomolecule that allows neurotransmission, that is, the transmission of information from a neuron (a type of cell in the nervous system) to another neuron, a muscle cell or a gland, through the synapse that separates them. The neurotransmitter is released from the synaptic vesicles at the end of the presynaptic neuron, towards the synapse, crosses the synaptic space and acts on the specific cell receptors of the target cell. In biology the term receptors refers to the proteins or glycoproteins that allow the interaction of certain substances with the mechanisms of cell metabolism. They are present in the plasma membrane, in the organelle membranes, in the cellular cytosol or in the cellular nucleus, to which other chemical substances such as hormones and neurotransmitters, specifically bind.
The binding of a signaling molecule to its specific receptors triggers a series of reactions inside the cells (signal transduction), whose final result depends not only on the stimulus received, but also on many other factors, such as the cell stage, the presence of pathogens, the metabolic state of the cell, etc. Usually changes in the receptor trigger changes in the permeability of the membrane or a cascade of activation of a series of intracellular signaling molecules. A biochemical cascade, also known as a signaling cascade or signaling pathway, is a series of chemical reactions that are initiated by a stimulus (first messenger) acting on a receptor that is translated into the cell through second messengers (which amplify the initial signal) and ultimately to the effector molecules, resulting in a cellular response to the initial stimulus. At each step of the signal cascade, several control factors intervene to regulate cellular actions, responding effectively to signals about their changing internal and external environments. The "amplification cascade" means that, at each step, the process becomes larger and larger.
So, in many signal transduction processes, an increasing number of enzymes, proteins and substances are involved in the event. This is from the beginning of the stimulus, which starts from the adhesion of a ligand to the membrane receptor. Then to the activation at the receptor, which converts the stimulus into a response, and which, within the cell, causes the chain of steps (signaling cascade or second messenger route) whose result is the amplification of the signal as it was explained. This means, a small stimulus causes a large cellular response.
Answer: Amino acids; peptide
Explanation:
20 different AMINO ACIDS link together to form chains. A protein is composed of one or more of these PEPTIDE chains which are twisted and folded into a particular shape.
There exists 20 amino acids capable of forming protein in the Human body. At least two amino acids are joined together by a peptide bond to form polypeptide chains that are then held together by hydrogen bonds in twisted alpha helical structures to form proteins.
Answer:Amino acid, polypeptide/polynucleotide chains
Explanation: Amino acids are usually the building blocks of protein hence,every protein is made up of one or more amino acids.
A protein consist of one or more polypeptide chain that is folded into a helix shape. This shape is to prevent the easy degradation of the components that makes up the polypeptide because it is water loving and can easy degrade.