Answer:
In 1488, Portuguese explorer Bartolomeu Dias (c. 1450-1500) became the first European mariner to round the southern tip of Africa, opening the way for a sea route from Europe to Asia. ... A major maritime victory for Portugal, Dias' breakthrough opened the door to increased trade with India and other Asian powers.
Explanation:
Portuguese sailors around the southern tip of Africa in 1488 because his voyage showed that the Indian and Atlantic oceans flowed into each other.
Why southern tip of Africa named the cape of good hope?The Portuguese navigator Bartolomeu Dias gave the Cape its original name, the Cape of Storms, in the early 1500s. Later, it was changed to Good Hope to draw more travelers to the southern African coast-passing Cape Sea Route.
The Flying Dutchman supposedly resides at the Cape of Good Hope. The ship is crewed by tortured and ghostly sailors, and according to mythology, it is destined to endlessly beat its way across the nearby waters without ever succeeding in reaching the peninsula.
Thus, Portuguese sailors around the southern tip of Africa in 1488 because his voyage showed that the Indian and Atlantic oceans flowed into each other.
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Charles Darwin observed a unique beak size and shape in the finch population of each of the Galapagos Islands that he visited. 4 drawings of finch beaks. From left to right the beaks decrease in size. Which is the most likely cause of the observed variation? differences in the climate among the islands competition among individuals for available food sources competition among individuals for desirable mates differences in egg size among the populations
Natural selection would probably favor different varieties in the different islands. In other words, beaks changed as the birds developed different tastes for fruits, seeds, or insects picked from the ground or cacti (due to lack of food resources). Long, pointed beaks made some of them more fit for picking seeds out of cactus fruits.
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Scientists often use models of the earth because
-It is impossible to study the earth
-the earth is too small to study
-the earth is too large to see all at once
Answer:
the answer is the earth is too large to see at once
Answer:
the earth is too large to see it all at once
Explanation:
If there was not an increase in cyanobacteria in early Earth, what would have happened to Earth’s early atmosphere? A. The amount of oxygen would have increased, causing an increase in aerobic autotrophs and heterotrophs B. The amount of oxygen would have increased, causing a decrease in aerobic autotrophs and heterotrophs. C. The amount of oxygen would have decreased, causing an increase in aerobic autotrophs and heterotrophs. D. The amount of oxygen would have decreased, causing a decrease in aerobic autotrophs and heterotrophs.
Answer:
Explanation:
Anaerobic bacteria are able to survive in the absence of oxygen while aerobic bacteria survive only in the presence of abundant oxygen.
Hence, while reduced levels of dissolved oxygen in the pond decrease the amount of aerobic bacteria like Bacillus; anaerobic bacteria like Actinomyces flourish since they survive on organic substances like methane, cellulose instead.
Explanation:
Nicholas is teaching his little brother about the similarities and differences between weather and climate. How are the concepts of weather and climate different?
Answer:
In short, weather is to describe the day or week (short period). . As for the climate, it is to describe the year or (a long period), for example, the climate of the winter season is cold.
A piece of potato weighs 20g fresh and 5g dry. What is the percentage water content of the potato?
A. 5%
B. 15%
C. 25%
D. 75%
Answer:
D. 75%
Explanation:
you take the difference of the two which is 15 and divide it by the original weight with water (you want to make sure to always divide the smaller # by the bigger # so you can get a decimal) then you will see that you get a decimal that you convert to a percentage :))
hope this helped ;))
How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater?
with more contractions
with fewer contractions
the contractions would suddenly cease
with the same frequency of contractions
Answer:
the answer is B, with fewer contractions
Explanation:
The contractile vacuole of a freshwater amoeba responds if the organism was placed in seawater having fewer contractions.
Impact on the contractile vacuole:In the case when the freshwater amoeba should be placed in the seawater so the seawater should be hypertonic the water and flow out of the cell.
Due to this, the contractile vacuole will become more contracting to release water.
hence based on this, The contractile vacuole of a freshwater amoeba responds if the organism was placed in seawater having fewer contractions.
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THERE ARE TWO PHOTOS.... they are the same problems I NEED HELP ASAP CAN SOMEONE HELP PLEASE :)
I'm pretty sure the right one is 44.5
which of the following does not describe a protein function?
URGENT!! Which is not part of the cell theory options: 25 points!! A. All known living things are made up of one or more cells B. Cells can divide C. Cells are the basic units of structure and function of an organism D. All cells come from preexisting cells
Answer:
B; cells can divide
Explanation:
is not in the cell theory
Answer:
B) Cells can divide
Explanation:
Which cell lacks a nucleus
Answer:
prokaryotic cell
A ______ is a molecule released from a synaptic vesicle that excites or inhibits another neuron, muscle fiber, or gland cell.
Answer:
Neurotransmitter
what pathogen is cholera?
Answer:
It is The vibrio cholerae
What is the advantage of creating a model of a dinosaur?
Answer:
Real dinosaurs can not be studied because they died out many years ago. so this is how we are learning about the past
Explanation:
The main advantage of creating a model of dinosour is for the purpose of studies and reasearch on dinosours because the were extincted and died many years ago and learning and researching is not possible at this time so there model has been prepared.
What are dinosours?Dinosours are the animals or large animals that were distincted many years ago and they belong to the diverse group known as reptiles. They are a large group of animals from taxonomic , morphological and ecological standpoints. At a period of time the dinosours were considered as bird.
The first appearance of dinosours has been found in Triassic period , between 243 and 233.23 million years ago.
The dinosours belong to the kingdom animalia, phylum Chordata, and Clade Dracohors .Dinosours are the animals or large animals that were distincted many years ago and they belong to the diverse group known as reptiles.
Dinosours are a large group of animals from taxonomic , morphological and ecological standpoints. At a period of time the dinosours were considered as bird.
Therefore,The main advantage of creating a model of dinosour is for the purpose of studies and reasearch on dinosours because the were extincted and died many years ago and learning and researching is not possible at this time so there model has been prepared.
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All living organisms have a complex chemistry.
A) TRUE
B) FALSE
Answer:
true
Explanation:
Plant root tips have a layer of cells that function together to grow
rapidly to allow the plantto increase the plant's ability to reach water and
stabilize in the ground. Based on this information, what level of
organization describes the plant root tips? *
Tissue
Organ
Organ system
Organism
Answer:
Tissue
Explanation:
The level of organization of the layer of cells in the plant's root tips is considered to be a special type of tissue known as meristematic tissues.
The meristematic tissues generally consist of undifferentiated cells that are capable of dividing rapidly throughout the life cycle of organisms. The meristematic tissues of the root tips are known as the root apical meristems and represent the tissue from which all primary root tissues are derived.
Which is not a basic function of a cell?
Answe.................................................................................................................................................................................................
Answer:
C. Maintaining a stable external environment. APEX
Explanation:
What is the difference between a hypothesis and a theory? A hypothesis is a testable statement, and a theory is well-supported explanation. A hypothesis is a theory that has been proven. A hypothesis is a law of nature, and a theory is always true. A hypothesis is an observation that can turn into a theory.
Answer:
In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. ... A theory on the other hand is a principle set to explain phenomena already supported by data.
Explanation:
The main difference between a hypothesis and a theory is that a hypothesis is a testable statement, and a theory is a well-supported explanation. Thus, the correct option is A.
What are Scientific theories?A Scientific theory may be characterized as a well-determined description of some significant features of the natural world, based on a body of certainty that has been repeatedly assured through observation and experiment.
The theories can transform themselves into laws when they gather sufficient evidence. While a hypothesis is a testable statement that needs sufficient evidence to be proved. A hypothesis is never turned into theories until they have some evidence to support the claim.
Therefore, the main difference between a hypothesis and a theory is that a hypothesis is a testable statement, and a theory is a well-supported explanation. Thus, the correct option is A.
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Can someone please help me answer these questions?
1. Name and describe each of the 3 major processes in the water cycle.
2. Describe the properties of ocean water.
3. Describe the 2 types of ocean currents.
4. Name the 2 types of freshwater and describe how they can be stored.
Answer:
evaporation, condensation, and precipitation. Evaporation is the process of a liquid's surface changing to a gas. In the water cycle, liquid water (in the ocean, lakes, or rivers) evaporates and becomes water vapor. condensation water which collects as droplets on a cold surface when humid air is in contact with it. Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Most precipitation falls as rain. properties of ocean water.Ocean waters are salty and contain minerals and dissolved gases. They also have a high heat capacity and vary in density depending on temperature and salinity. The two basic types of currents – surface and deep-water currents – help define the character and flow of ocean waters across the planet.On the landscape, freshwater is stored in rivers, lakes, reservoirs, and creeks and streams. Most of the water people use everyday comes from these sources of water on the land surface. Lakes are valuable natural resources, both for human and non-human life.
What other biome is it close to or in relation to desert ?
Please help it’s urgent
Answer:
B
Explanation:
I did this
Answer:
A
Explanation:
I would say A because coalesce means to combine to form one mass or whole, and A is the closest.
Can you help me with the question listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!! :)
Match the following three rocks with the appropriate type of rock unique qualities
Igneous rock
Metamorphic rock
Sedimentary
Answer:
Rock A- is igneous rock.
Rock B- is metamorphic rock
Rock C- is sedimentary
what are the factors affect the shape of the cell
Answer:
there are three general factors who regulate or control cell shape are the state of the cytoskeleton, and the amount of water that is transported into a cell, and the state of the cell wall.
Which of the following events is NOT typically included in fitness evaluations?
A. push-ups.
B. shot put.
C. endurance run.
D. standing long jump.
Answer:
B. shot put.
Explanation:
The evaluation of fitness could be figured out with the health related level, parts like flexibility, the strength of muscular, capability of aerobic exercise, etc. In order to remains fit for a daily life maintains the stress level so that the work could be done in easy manner without taking any stress or fatigue
For evaluating the fitness, the push-ups, running, and the standing long jump is involved but the shot put is not involved
Therefore the option B is correct
Answer:
b
Explanation:
What is a test variable? Give an example
what is meant by cell ultrastructure?
Answer:
Ultrastructure (or ultra-structure) is the architecture of cells and biomaterials that is visible at higher magnifications than found on a standard optical light microscope. ... Ultrastructure, along with molecular phylogeny, is a reliable phylogenetic way of classifying organisms.
Explanation:
Water which has soaked into the ground is knowscin as _______
It is known as "groundwater"
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Volcanic eruptions that occur as a result of continental shifting are typically found where
O the crust is thickened and the tectonic plates converge.
O the crust is thinned and the tectonic plates diverge.
the crust diverges and the tectonic plates submerge.
O the crust emerges and the tectonic plates converge.
A
B
C
D
Answer:
B. the crust is thinned and the tectonic plates diverge.
Explanation:
edge 2020
Volcanic eruptions that occur as a result of continental shifting are typically found where the crust is thinned and the tectonic plates diverge. Thus, the correct option for this question is B.
What do you mean by Continental drift?Continental drift may be characterized as a type of hypothesis that involves the significant movement of continents across the earth's surface through geological time. This theory of continental drift was given by Wagner.
The movement of the earth is stimulated through the divergence of tectonic plates which remains the foundation for the shifting or the occurrence of continents. These tectonic plates diverge by sliding over the surface of one another.
Therefore, volcanic eruptions that occur as a result of continental shifting are typically found where the crust is thinned and the tectonic plates diverge. Thus, the correct option for this question is B.
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Under which business structure might Cassie lose ownership of her app and control over the business?
Under which business structure might Cassie lose ownership of her app and control over the business?
Corporation
3 examples of biotic factors
Answer:
animals, plants, trees, bacteria, etc
Explanation:
