Answer:
The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubules are responsible for producing the sperm cells through a process called spermatogenesis
Explanation:
its copied but hope it helps
How does galaxy composition typically relate to the age of the stars in the galaxy? (1 point)
Star aging emits gas and dust, so galaxies with the youngest stars typically have the lowest proportions of dust and gas.
Star formation and the presence of young stars is common across galaxies, regardless of the proportions of dust and gas present.
Stars form from dust and gas, so galaxies with younger stars typically consist of higher proportions of dust and gas than other galaxies.
O Star formation consumes dust and gas, so galaxies where stars are oldest typically consist of higher proportions of dust and gas than other galaxies.
H
Galaxy composition typically relate to the age of the stars in the galaxy
through Stars being able to form from dust and gas, so galaxies with
younger stars typically consist of higher proportions of dust and gas than
other galaxies.
Components of a StarDustGasThe age of stars are usually determined through the amount of gas and dust
present in them. Stars burn gas to emit light and the younger ones have
more proportion of gas present than the older ones. The older ones have
less proportions due to more gas being burned over time.
The stated facts therefore makes option C the most appropriate.
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Answer:
C is right
Explanation:
This instrument has made it possible for scientists to observe certain objects and processes that would otherwise never have been seen with the naked eye or a common magnifying glass, because they are more stable and can be built with greater magnifying power, so that smaller structures can be seen and studied. It is used in a wide range of scientific fields, and has contributed to major discoveries in biology, medicine and materials research. What is the instrument?
Answer:
The modern field of biomaterials combines medicine, biology, physics, and chemistry, and more recent influences from tissue engineering and materials science.
Explanation:
The answer is microscope.
Which of the following best describes chemical weathering? A process in which ice wears away at rocks over a long period of time O A series of changes that moves rocks from one area to another O Any small-scale event such as rain or fog O A process that changes the composition of rocks, causing them to break down. PLEASE HELP ME NOW.
1. Why does the angle of the sun at noon seem to change at different months throughout the year?
2. How does this create seasons?
Answer:
1. The earth orbit is slightly elliptical, and the earth axis is tilted by roughly 23.5° to the orbit. These to factors combine to make the an analemma. But in the winter, When the Earth is on the other side of orbit, the Earth's north pole is tipped away from the Sun, so at noon the sun doesn't get as high.
2. The earth's spin axis is tilted with respect to it's orbital planet. This is what causes the season. When the earth's axis points towards the sun. it is summer for that hemispheres. Midway between these two times in spring and autumn, the spin axis of earth points 90 degrees away from the Sun.
what percentage of earth water is found in the oceans
Answer: 97 percent of earths water is found in the ocean the other percent is fresh water.
Explanation:
Answer:
About 71 percent of the Earth's surface is water-covered and the ocean hold about 96.5 percent of all Earth's water.
The light reaction, in photosynthesis, occurs in:
A) The Stroma
B) The Mitochondria
C) The Grana
D) The Electron Transport Chain
Drag each tile to the correct box.
Tanya planted seedlings in her garden over the weekend. The instructions that came with the seedlings stated that they need to be planted 0.2
meters apart. Tanya has a measuring tape that has values in centimeters. Help Tanya convert meters to centimeters.
pls put them in order
65 Pts
Answer:
20 centimeters apart.
Explanation:
Tanya planted seedlings in her garden over the weekend. The instructions that came with the seedlings stated that they need to be planted 0.2 meters apart. Tanya has a measuring tape that has values in centimeters. As we know 1 meter = 100 centimeters . Therefore, 0.2 meter = 0.2 × 100 = 20 centimeters. So Tanya need to be planted 20 centimeters apart.
4. How would having a high blood viscosity affect your ability to climb stairs? Explain your answer interms of homeostasis of oxygen/carbon dioxide levels
Having a high blood viscosity will slow down ability to climb stairs. This is
because high blood viscosity is associated with high blood pressure.
The binding of oxygen to the blood is reduced in a blood with high viscosity
as there is difficulty in the transport of blood for oxygenation due to its
higher density. This allows fro accumulation of carbon dioxide in the blood
which is harmful to body cells.
High blood viscosity will therefore reduce one's ability to climb stairs and
perform other activities.
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*Fill in the blank*
The biological molecule ____ usually makes up enzymes. Enzymes are used to ____ ____ the rate of a reaction within an organism. Each enzyme has a special shape called an ____ ____ where a ____ binds to break down into different products.
The enzyme can keep breaking down millions of substrates because it is ____ If an enzyme’s environment changes, it will not work effectively because the ____ of the active site changes. This change is called ____.
Words : site, | up | substrate | protein | denaturation | shape | reusable. | speed | active
Answer:
protein, speed up, active site, substrate, reusable, shape, denaturation
Explanation:
The biological molecule _protein usually makes up enzymes. Enzymes are used to _speed _up the rate of a reaction within an organism. Each enzyme has a special shape called an _active _site where a _substrate binds to break down into different products.
The enzyme can keep breaking down millions of substrates because it is _reuable If an enzyme’s environment changes, it will not work effectively because the _shape of the active site changes. This change is called _denaturation.
Fill in the blanks.
The biological molecule is a numerous substance that makes up the cells and living organisms. Has a wide range of sizes and structures. The enzyme is a substance that performed the works of a catalyst in living and regulates the chemical reactions.
Hence the answer protein, speed up, active site, substrate, reusable, shape, denaturation.
The biological molecules that makeup up the enzymes are known as protein, helps to speed up, the rate of the reactions within the organisms, and lead to the special shape known as an active site. There a substrate binds the break down into various products.The enzyme can be broken down into millions of parts and due to they are able to reusable and can change their shapes, the change in the enzymes is called denaturation.Learn more about the fill-in-the-blank.
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What is gene expression?
A. The production of a trait
B. The reading of DNA
C. Using a protein to make a gene
D. Using a gene to make a protein
Answer:
it is the process of information encoded in a gene which is used to direct the assembly of a protein molecule.
which of these processes produces gametes in animals?
Which statement describes the moment magnitude scale?
Answer:
It estimates the total energy released from an earthquake. It increases in magnitude as amount of damage increases. ... Which statement describes the moment magnitude scale? It measures only small earthquakes.
Explanation:
Answer:The moment magnitude scale is a scale that rates earthquakes by estimating the total energy released by an earthquake . Estimating the total amount of energy released, enables comparison of earthquakes more accurately.
4. PART B: Which quote from the text best supports the answer to
Part A?
O A "protesting the annexation of Texas as a slave state." (
Paragraph 7)
OB "and launched a newspaper where for 15 years he published
his views." ( Paragraph 8)
OC "his growing prestige gave him resonance in politics" (
Paragraph 9)
D "Douglass opened a dialogue with the president-elect" (
Paragraph 10)
Commonlit = ABOLISHING SLAVERY: THE EFFORTS OF FREDERICK DOUGLASS AND ABRAHAM LINCOLN
Answer:
C
Explanation:
.
The quote from the text that best supports the answer to Part A is as follows:
"his growing prestige gave him resonance in politics" (Paragraph 9).Thus, the correct option for this question is C.
What is a Quote?A quote may be characterized as a sequence of repeating the exact words of a speaker or an author. It is also a passage or statement repeated in this way. Quote means to cite something as a form of proof. The quote has several other senses as a verb and a noun.
According to the context of this question, the quote may be governed by the continuous repetition of a sentence, phrase, or passage from speech or text that someone has said or written.
In oral speech, it is the representation of an utterance (i.e. of something that a speaker actually said) that is introduced by a quotative marker, such as a verb saying.
Therefore, growing prestige gave him resonance in politics is the quote from the text that best supports the answer to Part A. Thus, the correct option for this question is C.
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plant cell don't burst when placed in water because?
Answer:
it absorbs the water
Explanation:
Although all organelles of the eukaryotic cell interact with each other within the cell to maintain homeostasis, the mitochondrion has a unique evolutionary history. It is proposed that this organelle originated as an engulfed aerobic bacterial cell that lived in a symbiotic relationship with its host cell. This explanation for the origin of the mitochondria can be supported by multiple lines of evidence. Select ALL statements that could provide accurate support for the theory of endosymbiosis as it relates to the mitochondrion. A) Mitochondria have multiple membrane layers. B) Mitochondria are the largest and most numerous organelle in the cell. C) Mitochondria have their own ribosomes separate from the ribosomes in the cell. D) Mitochondria have their own DNA that resembles the circular chromosome of bacteria. Eliminate E) Mitochondria have the ability to control when the cell undergoes mitosis or exits the cell cycle.
Answer:
A
C
D
Are correct
Hope it helps
Quick question: did I do this correctly?
When would a point mutation occur?
It can occur before and after cell division
Before the cell divides
After the cell divides
Before DNA replication
Answer:
The correct answer is option 1. Before and After Cell Division
Explanation:
Point mutations are frequently the result of mistakes made during DNA replication, although modification of DNA, such as through exposure to X-rays or to ultraviolet radiation, also can induce point mutations. But they may also occur after as well as before the division of a cell.
ok how do I fix my constipation
Answer:
Regular exercise for example swimming, walks
Increase the content of fiber in food, choose higher fiber cereals and legumes
Desist from waiting or holding in the urge to defecate
Avoid processed or fast foods, white bread, doughnuts, pastries
Drink more fluids, especially water
Eat more fruits as they help relieve constipation. For those with edible skins, do not peel them as they are rich in fiber
Explanation:
Try this
Answer:
1. Take a fiber supplement
2. Eat a serving of higher-fiber food
3. Drink a glass of water
4. Take a laxative stimulant
How do scientists identify organisms that may have disease resistance genes?
Answer:
The use of genetic engineering in developing disease-resistant plants. The techniques of genetic engineering can be used to manipulate the genetic material of a cell in order to produce a new characteristic in an organism.
do prokaryotic cells have membrane bound organelles
Answer: No
Explanation : if not mistaken prokaryotic cells have no internal membrane-bound organelles within their cytoplasm , but they do contain ribosomes.
what would happen to the carrying capacity of the ecosystem & why
Q-a volcano covers an area with 2 feet of lava
Answer:
The carrying capacity would shoot downward.
Explanation:
The area would no-longer be able to support organisms or the ground until the lava cools off. Even after then, any plants that may have been there will be gone, meaning that the ecosystem can now support less herbivores, as well as less primary producers (plants).
Less plants, means less herbivores, which means less of the animals that eat the herbivores (secondary and tertiary consumers).
which statement correctly compares a function of lipids to a function of proteins in the body?
The main role of nucleic acids is to store information that is used to make proteins. Nucleic acids come in two main forms: deoxyribonucleic acids, also known as DNA, and ribonucleic acids, also known as RNA. The main function of DNA is to store the genetic information that cells in the body need to function
Illustrate the following with the help of suitable diagrams.
a) Binary fission in Amoeba
b) Binary fission in Leishmania
c) Multiple fission in plasmodium
d) Regeneration in Planaria
e) Budding in Hydra
f) Spore formation in Rhizopus
Answer:
D. Regeneration in Planaria
Explanation:
If it is divided into 3 parts a, b and c, each part grows as a new individual
Answer the following question number 13 for 20 point
Answer:
All i could fine is metamorphic rocks
Explanation:
Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.
Hoped that helped:P
Answer:
D, or hornfels.
Explanation:
Hornfels is a metamorphic rock formed by the contact between mudstone / shale, or other clay-rich rock, and a hot igneous body, and represents a heat-altered equivalent of the original rock. This process is termed contact metamorphism. It's not like animal metamorphism.
tortoise shells and snail shells are similar in function to protect the organism from predators based on a comparison of the organisms in the images what can you conclude
Answer:It is the fourth option
Explanation:
which compound is orgaic
Answer: organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.
explain how redox reactions are involved in energy exchanges
Answer:
In redox reactions, energy is released when an electron loses potential energy as a result of the transfer. Electrons have more potential energy when they are associated with less electronegative atoms (such as C or H), and less potential energy when they are associated with a more electronegative atom (such as O).
what percentage of american black genes are european
Answer:
African Americans and Latinos have much lower percentages than European Americans, whose genomes are 99.6% European, 0.19 percent African, and 0.18 percent Native American.
Explanation:
I hope I have helped you :)
5. What would happen if all of the bird types in this activity flew to an island where no birds had
been before and the only food available was rice? Which birds would be most successful? Which
birds would be least successful?
Answer:
the birds would either have two choices. they can eithe starve or they could adapt and eat the rice. they eventually would adapt if they wanted to stay alive and thrive or they would simply become extinct
Explanation:
If all of the bird types in this activity flew to an island where no birds had been before and the only food available was rice then they either starve or adapt and eat the rice.
What is adaptation?An adaptation can be defined as the heritable behavioral, morphological, or physiological trait which has evolved through the process of natural selection of a species, and maintains or increases the fitness of an organism of a species under a given set of environmental conditions and time.
In this activity, if all of the bird types flew to an island where no birds had been before and the only food available was rice then they either starve or they could adapt and eat the rice. However, they eventually would adapt if they wanted to stay alive on that island and thrive or they would simply become extinct.
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Check the statements below that provide evidence for the endosymbiosis theory
The DNA in the nucleus and mitochondria are the same.
This is not exactly true, although they are similar. This is not a correct option.
The following three are correct options:
Mitochondria and chloroplasts grow independently from the cell.
This is true, and supports the idea that they previously existed as their own organisms.
Prokaryotic cells, mitochondria, and chloroplasts are all the same size.
All three organisms/organelles are roughly the same size, which supports the idea that chloroplasts and mitochondria are descendants or prokaryotes.
Mitochondria and chloroplasts contain their own ribosomes.This is true as well.