Answers
Related Questions
Which statement below is an example of how a gamete's
structure significantly helps its function?
Eggs have tails to help them travel down the fallopian tubes to the uterus.
Sperm have a well-protected head and a motor to help them travel.
Eggs are small to minimize their chances of double fertilization.
Sperm are large so that they can contain nutrients for the developing embryo.
Answers
Answer:
Sperm have a well-protected head and a motor to help them travel.
Explanation:
Gametes are sexual cells. Organisms make use of gametes to sexually reproduce themselves. Male organisms produce gametes called SPERM while feale organisms produce gametes called EGG. Although both of these gametes function to sexually reproduce the organism that produces them, they have different morphological characteristics that supports their physiological function.
- The sperm cell is made up of two major parts namely: the head and the tail. The head of the sperm cell contains the nucleus, which houses the genetic material of the cell i.e. DNA. For this reason, the head is well protected. Also, the sperm contains a tail region, which is actually a flagellum that enables it to be motile i.e swim through the female reproductive part. The flagellum contains a structure called AXONEME, which is referred to as the MOTOR of the sperm cell.
What is a homologous structure?
A. A structure with similar shape but a different use
B. A structure that is only in index fossils
C. A structure that only exists in the embryo
D. A structure that has no use in the organism
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A. A structure with similar shape but a different use
function of the egg cell
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Answer:
The function of the ovum is to carry the set of chromosomes contributed by the female and create the right environment to enable fertilization by the sperm. Ova also provide nutrients for the growing embryo until it sinks into the uterus and the placenta takes over
Explanation:
The photo shows a space heater. Which energy transformation is shown in the photo? A. Chemical - electromagnetic and thermal B. Electromagnetic and thermal - chemical C. Electromagnetic and thermal - electrical D. Electrical - electromagnetic and thermal
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Answer:
D. Electrical - electromagnetic and thermal
Explanation:
Energy is the capacity to do work, and it exists in various forms. Some of its forms are: nuclear energy, solar energy, electrical energy, mechanical energy, sound energy, light energy, heat/ thermal energy etc. These forms can be transformed from one to another. Example is the conversion of electrical energy into light energy and heat energy by an electrical Tungsten-bulb.
A space heater is an electrical device used for generation of majorly heat energy, thus it is powered by electrical energy. Therefore it transforms electrical energy into electromagnetic and thermal.
The cell wall _____ the shape of the cell/plant. The cell membrane _____ the entry and exit of _____.
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Answer:
The cell wall _oval____ the shape of the cell/plant. The cell membrane ___is__ the entry and exit of __cell___.
What elements are found in distilled water? Check all the may apply
1 point
Hydrogen
Oxygen
Carbon
Nitrogen
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Which of these statements about enzymes is true? Select
all correct answers.
a. Enzymes can help break chemical bonds.
b. Enzymes always change their shape when they bind
to a molecule.
c. Enzymes can break down a variety of different
substances.
d. An enzyme’s shape is related to the shape of the
substrate it binds to.
Answers
Answer:
b. Enzymes always change their shape when they bind to a molecule.
d. An enzyme’s shape is related to the shape of the substrate it binds to.
Explanation:
Enzymes are proteins that are secreted by special cells in living organisms. They are the organic catalysts of biochemical reactions.
The role of the enzyme in the enzyme catalyzed reaction is to bring reactants together on its surface so as to have better interactions.
Enzymes have the capability to fit the substrate into an induced fit position.
The process by which enzymes change shape in a reaction is called the induced fit.
This way an enzyme holds the substrate tightly for the reactions to occur.
Describe the properties of liquids?
Answers
Liquids take on the shape of their container. Liquids will flow and fill the lowest portion of a container, taking on the shape of the container but not changing in volume. ... The limited amount of space between particles means that liquids have only very limited compressibility.
the grand canyon was carved, separating what had once been a single population of squirrel into two seperate populations. what do you think happened to those populations over time?
Answers
Answer:
They became different.
Explanation:
Since the populations were separated and were not able to interact, they could not reproduce. Eventually, mutations would work their ways into each of the separate populations of squirrels. Since the two populations can't mix their genes through breeding they will slowly start to get different. For example, one population could experience a mutation that changes the color of one animals in the one of the populations. This squirrel will spread its genes to its offspring and if it is a good trait then it will spread throughout the population. The other population will not experience a widespread invasion of this trait because the two populations can't breed.
What is the importance of the amniotic egg?
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Answer:
The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.
Explanation:
An amniotic egg has a clump of nutrients that is used to sustain the embryo during development. This clump of nutrients is called the yolk, and the yolk sac encloses it.
Professor Marcus has identified a new species of beetle in the Amazon Rainforest. The professor
then investigates the process of gene expression in the cells of the beetle. Which is an expected
result of the investigation?
Answers
Answer:
Which is an expected result of the investigation?
The process of translation in the beetle is similar to other organisms, but involves a unique genetic code.
Explanation:
The process of translation in the beetle is similar to other organisms, but involves a unique genetic code.
Study this diagram of a flowering tree's life cycle. What is the error in the diagram?
A- Stage 1
B- Stage 2
C- Stage 3
D- Stage 4
E- Stage 5
Answers
Answer:
I believe stage 3 correct me if im wrong
Explanation:
Answer:
c. Stage 3
Explanation:
Compare unicellular and multicellular organisms.
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Answer:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.
What are the 3 ways in which static electricity can be transferred? Explain each.
Answers
Answer:
1.to build up static electric
2.charging by friction.
3. by conduction and by Induction
Help!!! look at the picture!
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Answer:
The organism's genotype encodes their phenotype because the genotype corresponds to the characteristic that is determined by genes —formed by fragments of DNA— which are transcribed into mRNA to be translated into amino acid sequences in the synthesis of proteins, determining the morphological and functional characteristics of an organism, that is, its phenotype.
Explanation:
Genotype corresponds to the genetic information contained in the DNA, according to the sequence of nucleotides in its molecular structure. This genotype includes characteristics or polymorphisms that define the appearance and function of living beings.
Each DNA molecule constitutes a chromosome, formed by genes —DNA fragments— each of which determines specific characteristics.
When DNA is transcribed into mRNA, information is being sent that is necessary for the incorporation of amino acids into a protein that is being synthesized. The proteins, in turn, determine morphological and functional characteristics that constitute the phenotype of an individual.
Which statement about air is correct?
1:Air is essential for people and plants, but not animals.
2:Air is essential for almost all organisms.
3:Air is essential for people, but not animals or plants.
4:Air is essential for people and animals, but not plants.
Answers
Answer:
Air is essential for almost all organisms.
Explanation:
Answer: 2. Air is essential for almost all organisms!
Explanation: People need air to breathe, plants need air to make food and breathe, and animals need air to breathe! Good luck! :D
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effect of osmosis on cells....
Answers
Explanation:
Effect of Osmosis on CellsOsmosis affects the cells differently. An animal cell will lyse when placed in a hypotonic solution compared to a plant cell. The plant cell has thick walls and requires more water. The cells will not burst when placed in a hypotonic solution. In fact, a hypotonic solution is ideal for a plant cell.
An animal cell survives only in an isotonic solution. In an isotonic solution, the plant cells are no longer turgid and the leaves of the plant droop.
The osmotic flow can be stopped or reversed, also called reverse osmosis, by exerting an external pressure to the sides of the solute. The minimum pressure required to stop the solvent transfer is called the osmotic pressure.
#it is correct, please don't report
Effects of osmosis on cells
Red blood cells placed in a solution with the same water concentration as their cytoplasm (0.85 per cent salt solution) will not experience an overall change in volume. No osmosis occurs.Red blood cells placed in a solution with a higher water concentration compared to their contents (eg pure water) will gain water by osmosis, swell up and burst.Water will diffuse from a higher water concentration outside the cell to a lower water concentration inside the cell.Red blood cells placed in a solution with a lower water concentration compared to their contents (eg 1.7 per cent salt solution) will lose water by osmosis and shrink.Water will diffuse from a higher water concentration inside the cell to a lower water concentration outside the cell.The STARTING molecule for the Krebs cycle is
A.)NADH
B.)pyruvic acid
C.)glucose
Answers
Answer:
B
Explanation:
This combines with a 4 carbon compound to start the cycle
Kreb's cycle or Tricarboxylic cycle is an enzyme-catalyzed reaction, in which ATP molecules are generated. The starting material for the cycle is pyruvic acid.
The correct answer is:
Option B. Pyruvic acid
Some of the features of Kreb's cycle are:
The starting material of Kreb's cycle is pyruvic acid. The pyruvate is obtained from the glycolysis of glucose molecules.The pyruvic acid breaks into a two-carbon molecule and joined with the enzyme Co A, to form a two-carbon molecule Acetyl Coenzyme A.The Krebs cycle is a series of dehydration, reduction, oxidation, and hydration reactions.The product of Kreb's cycle is two carbon dioxide molecules, one GTP, and reduced NADH and FADH2.
Thus, the starting material for the Kreb's cycle is pyruvic acid, which is converted into the acetyl Coenzyme A before entering the Kreb's cycle.
To know more about Krebs cycle, reefer to the following link:
https://brainly.com/question/13153590
What is another term for the output of a reaction
Answers
Answer:
7367325623t8y656785486325ru
Explanation:
Reactants are the input, products are the output.
Direction : Find a wordless photo that shows this law and explain why your image shows Newton’s first law.
Photo :
Explanation (15 word or less) :
Answers
Answer: gravity
Explanation:
Which observation supports the idea that information is passed down from parents to their offspring?
O A.
The baby bears look very similar to the mother.
ОВ.
The baby bears are smaller than the mother.
OC.
The baby bears run faster than the mother.
OD.
There are two babies and only one parent.
I
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Answer: A
Explanation:
Traits can be visible, when offspring look similar to the parents they have physical traits that have been passed down.
Explain how cellular respiration and photosynthesis work together in plants.
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Answer:
teamwork makes the dream work
Answer:
Photosynthesis and cellular respiration are connected through an important relationship. This relationship enables life to survive as we know it. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis:
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O
Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O2
Explanation:
(basic other info, they use sugars, co2, sunlight, and water)
When economic conditions are favorable, more effort can be put into synthetic materials that satisfy desires and not just needs.
O True
O False
Answers
Answer:
True
Explanation:
The correct answer would be true.
A favorable economic condition in an area means that a large percentage of the population of the people in the area already have their basic needs met. According to Abraham Maslow, when basic needs are met, human needs graduate from basics to more sophisticated ones. Consequently, production efforts can be put into producing material that satisfies desires and not just needs.
What is another property of ionic compounds?
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Answer:
They form crystals
They have high melting points and high boiling points
They have higher enthalpies of fusion and vaporization than molecular compounds
They're hard and brittle
They conduct electricity when they are dissolved in water
They're good insulators
Explanation:
i hope this is what you need
I need help with this question thanks :)
Answers
Answer: A : earthquake
Would the circles be phosphates? If you have answers for any of the other questions on there that would really help
Answers
Answer: Yes
Explanation:
The circles are phosphate groups. The pentagons are deoxyribose sugars.
Between 1984 and 2003, scientists mapped the human genome, which means they determined the pattern of billions of genes that make a human a human. Originally, it took years to map a single person’s total genome. By 2014 multiple genomes could be mapped in one day. What most likely allowed scientists to start mapping so much faster? a change to Mendel’s law of dominance more powerful computer technology the discovery of how germs work new scientists repeating gene experiments
Answers: a change to Mendel’s law of dominance
more powerful computer technology
the discovery of how germs work
new scientists repeating gene experiments
Answers
Answer:
More powerful computer technology
Explanation:
More powerful computer technology allowed the scientists to start mapping so much faster because powerful computer works very fast as compared to human brain. The activity or calculation which can be done by the human brain in hours, the computer done it in seconds due to its fast and quick response. So we can conclude from this discussion that powerful computer technology allowed the scientists to start mapping very fast.
Which characteristic listed below is most unique to plants?
Select one:
a.
Plants are heterotrophs.
b.
Plants undergo photosynthesis.
c.
Plants are multi-cellular.
d.
Plants are composed of eukaryotic cells.
Answers
Answer:
Plants are composed of eukaryotic cells.
Explanation:
Eukaryotic cells (as opposed to prokaryotic cells) have internal, membrane-bound organelles and a distinct nucleus that physically separates the genetic material of the cell from the all of the other parts of the cell. All protists, fungi, plants, and animals are composed of eukaryotic cells.
The characteristic that is most unique to plants is that they undergo the process of photosynthesis. Thus, the correct option for this question is B.
What is Photosynthesis?Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The complete reaction of photosynthesis is as follows:
[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6O_2+6H_2O.[/tex]Plants are eukaryotic in nature and have a double membrane cell organelle that is known as Chloroplast. These cell organelles have a green-colored pigment known as chlorophyll that captures the sunlight and converts it into chemical form and accomplishes the process of photosynthesis.
Therefore, the characteristic that is most unique to plants is that they undergo the process of photosynthesis. Thus, the correct option for this question is B.
To learn more about Photosynthesis, refer to the link:
https://brainly.com/question/26568636
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Why can we see some patterns of stars in certain seasons?
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The answer is that the night sky changes because of Earth’s orbit around the Sun, and as you’ll see, this also explains the path called the ecliptic on the celestial sphere.
What are the different types of microscopes
Answers
five different types of microscope
stereo microscope
compound microscope
inverted microscope
metallurgical microscope
and polarizing microscope
