Answer:
Enzymes such as amylase ,protease and lipase are liable for solubilizing spare food materials in form of starch, protein and lipids correspondingly
in seed and deliver energy and other fundamentals food materials to germinating embryo.
The seed proteins are catalyzed by protease enzyme and break it into amino acid and peptides that a e transferred to growing embryo.
The amino acids obtained from metabolism of the proteins are further used in biosynthesis of enzymes,hormones,proteins, pyrimidines and Purine bases.
The starch is catalyzed by enzyme amylase that provides the food materials for growth and development of embryo . Similarly lipase are enzymes that are responsible for metabolism of the triacylglycerols into glycerols and fatty acids.This is also the source of energy for growing embryo
Why ulva is not placed in kingdom plantae
Answer:
Because Ulva is an algae. Algae belongs to kingdom Protista.
Explanation:
Ulva is a Macroalgae because it's not microscopic.
Macroalgae is not considered as a plant due to their structure. Macroalgae do not have specialized organs and tissues, and they are not vascularized. They also do not have the capacity to form a structure with flowers, leaves, roots or a stem.
What is the best description of connective tissue? Question 3 options: All of its cells rest on a basal lamina. All of its cells associate via cadherins in their plasma membrane. All of its cells are electrically connected via gap junctions. All of its cells are sparsely distributed in the extracellular matrix.
Answer:
Connective tissue is a group of tissues in the body that keep the body and its organs in shape while also providing cohesion and internal support.
All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.
What is connective tissue?
Tissue that sustains, protects and provides structure to other tissues and organs in the body. Connective tissue also stores fat, permits the movement of nutrients and other substances between tissues and organs, and allows the repair of damaged tissue. Connective tissue exists created up of cells, fibers, and a gel-like substance.
Connective tissue is discovered in between other tissues everywhere in the body, including the nervous system. The three outer membranes (the meninges) that surround the brain and spinal cord exist composed of dense inert connective tissue.
Connective tissues bind systems together, form a framework and support for organs and the body as a whole, store fat, transport substances, defend against disease, and assist restoration of tissue damage.
Hence, All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.
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An actin-binding protein called cofilin binds preferentially to ADP-containing actin filaments rather than ATP-containing actin filaments. Based on this preference, which is true? Question 7 options: Cofilin binds to the plus ends of treadmilling actin filaments. Cofilin competes with profilin for binding to actin. Cofilin binds to older actin filaments. Cofilin binds to the plus ends of actin filaments.
Answer:
Cofilin binds to older actin filaments
Explanation:
Microfilaments (also called actin filaments) are a class of protein filament common to all eukaryotic cells, which consist of two strands of subunits of the protein actin. Microfilaments form part of the cell's cytoskeleton and interact with the protein myosin in order to allow the movement of the cell. Within the cell, actin may show two different forms: monomeric G-actin and polymeric F-actin filaments. Microfilaments provide shape to the cell because these filaments can depolymerize (disassemble) and polymerize (assembly) quickly, thereby allowing the cell to change its shape. During the polymerization process, the ATP that is bound to G-actin is hydrolyzed to ADP, which is bound to F-actin. ATP-actin subunits are present at the barbed ends of the filaments, and cleavage of the ATP molecules produces highly stable filaments bound to ADP. In consequence, it is expected that cofilin binds preferentially to highly stable (older) filaments ADP-actin filaments instead of ATP-actin filaments.
Laying the groundwork for the 'germ theory' of disease _________ discovered that organisms cannot spontaneously arise, but must be introduced into an environment.
A. Anthony Van Leeuwenhoek
B. Louis Pasteur
C. Robert Hooke
D. Ernst Ruska
Laying the groundwork for the 'germ theory of disease, Louis Pasteur discovered that organisms cannot spontaneously arise, but must be introduced into an environment.
Who was Louis Pasteur?Louis Pasteur was a chemist and microbiologist. He is known for the discovery of vaccines, fermentation, and pasteurization.
The germ theory is given by Pasteur. He first of all states that process fermentation is done by living organisms, bacteria, and yeast.
Thus, option B. Louis Pasteur is correct.
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Which of the following terms is the life
cycle of a living cell?
A. g1
B. cell cycle
C. interphase
D. mitosis
Answer:
cell cycle is the term of the life cycle of a living cell
HELPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!! All of the following cause mechanical weathering EXCEPT ____. a. ice c. burrowing animals b. tree roots d. carbonic acid
Explanation:
c. burrowing animals is the answer
Question 6 of 25
Which is an example of a vestigial structure?
A. Raccoon tail
B. Fish gills
C. Whale pelvis bone
D. Human arm
help:,)
the answer for your question is D
Use the drop-down menus to complete the hypothesis of the first group of researchers. During a drought, the decrease in rainfall will reduce the amount of vegetation that can grow and increase the occurrence of natural fires, so an elevation in Select… and a reduction in Select… should be found in the cores.
Answer:
Microscopic charcoal, Vegetation.
Explanation:
As the researchers conducting research in the Nile region identified that an increase in temperatures leads to an increase in droughts and reduction of natural vegetation and thereby the chances of the occurrence of natural fires.Though plants, fungi, and prokaryotes all have cell walls, we place them in different taxa. Which of these observations comes closest to explaining the basis for placing these organisms in different taxa, well before relevant data from molecular systematics became available?
Answer:
Due to other differences.
Explanation:
The plants, fungi, and prokaryotes all have cell walls, we place them in different taxa because of the other differences such as mobility, mode of nutrition etc. Plants and fungi are not mobile means can not move from one place to another whereas prokaryotes are mobile. Fungi and prokaryotes are heterotrophs means that feed on other organism whereas plants are autotrophs means make their own food. There is also difference in their cell wall i.e. the cell of plants is composed of cellulose, the cell wall of prokaryotes especially bacteria is composed of peptidoglycans and the cell wall of fungi is composed of chitin.
different between dominant character and recessive character
Dominant character:are always expressed when the connected allele is dominant,even if only one copy of the dominant trait exits.
Recessive character:are expressed only if both the connected allele are recessive.
Answer:
Dominant and recessive traits exist when a trait has two different forms at the gene level. The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.
Explanation:
If some traits are absent or not expressed, but found in the parent, then the allele is said to be recessive.
Difference Between Recessive and Dominant Traits
DOMINANT
Dominant Trait Recessive Trait
Dominant allele is denoted by a capital letter
RECESSIVE
Recessive allele is denoted by a small letter
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PLSSS HELLLPP- Which of the following measurements uses a derived unit? O volume O mass O length O time
Answer:
Volume
Explanation:
volume=length ×length ×length
The metric system is the system used for the measurement. It measures the mass, length, weight, time, etc. The unit of volume is a derived unit. Thus, option A is correct.
What is a derived unit?A derived unit is a unit used to measure and estimate the substance by using the basic or the fundamental metric unit system. It is based on units of the fundamental system.
The fundamental units include mass, temperature, time, luminous intensity, length, electric current, and amount of substance. On the other hand, derived units result from a combination of base units.
A volume is a derived unit as it came from the fundamental unit of length as,
Volume = length × length × length
= cm × cm × cm
= cm³
Therefore, option A. volume is a derived unit.
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The___ cycle is not a nutrient cycle
Answer:
use
Explanation:
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Some of the cell membrane functions are similar to the ________ of the body.
the skin has cells like that
A mutation occurred in the following DNA sequence AGCCTAGCC and the mutated form is now AGCCTTAGCC. Which of the following correctly describes the result of this mutation?
1.A deletion occurred so all of the amino acids added after the mutation may be wrong.
2.An insertion occurred so all of the amino acids added after the mutation may be wrong.
3.A substitution occurred so all of the amino acids added after the mutation will definitely be wrong.
4.An insertion occurred so all of the amino acids added after the mutation definitely will be different.
Answer:
Explanation:
1.A deletion mutation occurs when a wrinkle forms on the DNA template strand and subsequently causes a nucleotide to be omitted from the replicated strand.
2.This type of variant results in a shortened protein that may function improperly, be nonfunctional, or get broken down. An insertion changes the DNA sequence by adding one or more nucleotides to the gene.
3. A substitution mutation can cause the following: Change in the coding of amino acids codon to a particular stop codon resulting in an incomplete protein, which is usually non-functional. Can cause Silent mutations where a codon change can encode the same amino acid resulting in no changes in the protein synthesized.
4. when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal. Consequently, most nonsense mutations result in nonfunctional proteins.
the scientific name of the great egret has recently been changed from Casmerodius albus to Ardea alba. What is a possible reason for the reclassification of egrets?
A) Allopatric speciation
B) Discovery of a different ancestor
C) A change in the mating behaviors
D) A change in their habitat and geological range
Answer:
B) Discovery of different ancestry
Explanation:
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The purpose of Mendel's experiments with dihybrid crosses was to determine
whether:
A. an F2 generation could be produced from the Fi offspring.
B. one of two traits could be transformed by DNA.
O c. one trait would affect how another is inherited.
D. traits are controlled by more than one gene.
Answer:
C. one trait would affect how another is inherited
Explanation:
pls answer this question i think easy
Answer:c
Explanation:it must be c if im wrong then sue me!
Answer:
B. Food is broken into simpler molecules.
Explanation:
these small molecules are; proteins, amino acids, glucose, e.t.c
what's the cell wall of a onion made up of?
Answer:
Unlike animal cells (such as cheek cells) the cell wall of an onion and other plants are made up of cellulose, which protects the cell and maintains its shape.
Answer:
cell membrane,cytoplasm,nucleus and a large Vacuole.
Explanation:
An onion is a multicellular(consisting of many cells)plant organism.As in all plant cells,the cell of an onion peel consists of a cell wall.
predict what happen to the human and the plants if the transport system are affected
I think we'll be scared and panicked and some people will die of overthinking
scientists who believe global warming is happening would agree with which of the following statements?
(A) There are few, if any, misconceptions about global warming
(B) Most scientists agree that global warming is occuring
(C) Human activity is a minor cause of global warming.
(D) There is little humans can do to stop global warming
Answer:
B. Most scientists agree that global warming is occurring.
Explanation:
There is a large deal of misconception in the public surrounding global warming. Human activity is the primary cause of global warming, and therefore, there are many actions that humans could take to stop global warming.
Tania looks at several different multivitamins in the store and notes that there are many different formulations with
varying amounts of several types of vitamins. She would like to choose a brand that only has the essential vitamins
that humans need to consume.
What are the vitamins that Tania should verify are in the product that she purchases?
O vitamins A, B, C, D, E, and K
O vitamins A, B, C, E, and K
O vitamins A, B, C, D, and E
O vitamins A, B, C, D, E, F, and K
Name the following.
(a) Tissue that forms the inner lining of our mouth.
(b) Tissue that connects muscle to bone in humans.
(c) Tissue that transports food in plants.
(d) Tissue that stores fat in our body.
(e) Connective tissue with a fluid matrix.
(f) Tissue present in the brain
a) What is the earth's path around the sun called? b) How long does it take for Earth to complete a complete circuit around the Sun? c) Name one planet that is closer to the Sun than Earth and another one that is further away. .
carbohydrate are store in animal cell in the form of
Answer:
molecule glycogen
Plants store carbohydrates in long polysaccharides chains called starch, while animals store carbohydrates as the molecule glycogen.
The Channel Islands are a series of small islands off the California coast. Each island has a genetically distinct population of foxes. Compare the population of foxes on one of these islands to the population of foxes in the forests of mainland California. Which is more likely to be impacted by genetic drift? Which is more likely to be at Hardy-Weinberg equilibrium?
Answer:
The fox population on the Islands experiences genetic drift whereas foxes in the forests has Hardy-Weinberg equilibrium.
Explanation:
The fox population on the Islands experiences genetic drift because there is no chance of introduction of different type of foxes in these Islands which experiences less variation in the population of already existing foxes. Genetic drift is the change that occur in the frequency of an existing gene allele in a population due to random sampling of organisms. Genetic drift may cause gene variants to disappear completely with the passage of time which leads to reduce genetic variation. The foxes that is located in the mainland forest experiences Hardy-Weinberg equilibrium.
define and describe osmosis
Answer:
Movement of a solvent (such as water) into a solution with a higher solvent concentration by means of a semi-permeable membrane (as from a live cell), which tends to equal solute concentrations in the membrane on both sides.
Explanation:
Osmosis, the spontaneous transition, distribution, or diffusion of water and other solvents over a semipermeable membrane. In 1877, a German physiologist, Wilhelm Pfeffer, researched the process, which is important in biology.
Osmosis is the passage of water down its concentration gradient, across a semi-permeable membrane. An everyday example is a plastic wrap in your kitchen: it allows air and water vapor to move across it, but no water or food. The membranes of cells are semi-permeable, too.
Is there any plastid in mango seed?
Whats a hypothesis for “Which bait works better for a homemade fly trap?”
Answer:
If I use the correct bait, then I will have a successful homemade fly trap.
Explanation:
A hypothesis is always an "if, then" statement
A farmer decides to try to increase his profits by mating his two goats that produce the most milk together. The farmer’s descendants continue the process and over 400 years the family produces goats that make more milk than any in the country. Eventually the goats change enough that they are designated a new species. This is an example of:
A. Artificial selection
B. Acquired characteristics
C. Disruptive selection
D. Natural selection
Answer:
A.is the correct answer
Explanation:
People have been doing asimple form genetic enineeringfor thousands of years. This is called selective breeding. Selective breeding, or artifical selection, is a process where people try and improve plants and animals by selecting and breeding those that have desireable charactistics.
For example, a farmer might choose from his two largest cattle in his herd and breed them together so that the offspring will be even bigger and produce more meat.
Convert 90 centuries to minutes using the method of dimensional analysis.
[tex]\huge\text{Hey there!}[/tex]
“[tex]\large\text{Convert 400 mm to m}[/tex]”
[tex]\large\text{Just simply divide 400 by 1,000 and you will have your result.}[/tex]
[tex]\mathsf{\dfrac{400}{1,000}}[/tex]
[tex]\mathsf{= \dfrac{400\div200}{1,000\div200}}[/tex]
[tex]\mathsf{400\div 200 = \bf 2}[/tex]
[tex]\mathsf{1,000 \div 200 = \bf 5}[/tex]
[tex]\mathsf{= \bf \dfrac{2}{5}}\rightarrow\mathsf{\bf 0.4}[/tex]
[tex]\boxed{\huge\textsf{Therefore, your ANSWER is: \boxed{\bf \dfrac{2}{5} \ or \ 0.4}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
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