The hip bone of a whale and the appendix of a human are referred to as ______because they have little current importance but were important in the
ancestors of these organisms.
A.embryological structures
B.homologous structures
C.vestigial structures
D.mystery structures
E.analogous structures
Answers
Related Questions
Which animal is most likely to have an open circulatory system?
Responses
beetle
cat
human
elephant
Answers
Answer:
Beetle
Explanation:
open circulatory system found primarily in arthropods and mollusks. Arthropods are a group of animals that includes insects and crustaceans.
Answer:
The answer is beetle
describe how the force of gravity acts upon an object, and give an example.
Answers
A polar bear’s white fur is the result of a beneficial genetic mutation. Make a model
of a scenario where that mutation would be neutral or harmful.
Answers
Scientists can track the movement of proteins through the endomembrane system using an approach known as a pulse-chase experiment. This experiment involves • the “pulse” phase: Cells are exposed to a high concentration of a radioactively labeled amino acids for a short period to “tag” proteins that are being synthesized. • the “chase” phase: Any unincorporated (not used to make proteins) radioactively labeled amino acids are washed away and large amounts of the same, but unlabeled, amino acid are added. Only those proteins synthesized during the brief pulse phase are radioactively tagged. These tagged proteins can be tracked through the chase period to determine their location in the cell. The data below were obtained from a pulse-chase experiment in which cells were examined at different times during the chase period. The numbers represent the radioactivity (measured in counts per minute) recorded at each of the indicated sites. The higher the number, the greater the radioactivity. Table 1. Results of pulse-chase experiment. Radioactivity Levels (in counts/minute) by cellular location Time After Pulse ER Golgi Cytoplasm Lysosomes Extracellular Space 3 min 162 7 21 5 5 20 min 73 88 17 8 10 60 min 9 35 14 11 112 120 min 11 23 18 12 151 Question # 1: Examine the narrative and table provided above and provide a 1 sentence explanation (in your own words) of the information the table conveys.
Answers
Answer: The cells in this experiment were macrophages. These immune system cells have many lysosomes for the destruction of bacteria and other invaders brought into the cell via phagocytosis. The enzymes (hydrolases) that carry out this catabolic activity are synthesized in the endoplasmic reticulum, modified in the Golgi, and transported to the lysosomes.
Explanation: hope this helps plz mark brainliest! (:
Which of the following statements about mutualism is correct?
A) Clown fish and anemones have a mutualism relationship.
B) Both parties involved in a mutualism relationship suffer from the alliance.
C) Leeches and their hosts have a mutualism relationship.
D) All scientists agree that mutualism is the only form of symbiosis.
Answers
Answer:
i think its B
Explanation:
i'm so sorry if its wrong T-T
Answer:
the correct answer is c
Explanation:
please mark brainlest
A scientist measured the distance between fixed points on two different plates over the course of a decade and found that the distance did not change. Does this result support the theory of plate tectonics? Why or why not?
Answers
Answer:
No because the tectonic plate theory says that they move but if they didn’t move then it proves it wrong.
What is a smell?
A)electrical signals from the substance you are smelling
B)light from the substance you are smelling
C)molecules of the substance you are smelling
D)smells are not matter, but are energy waves from the substance you are smelling
Answers
The molecules make contact to part of your olfactory epithelium, which contains receptors that lock onto these molecules.
Describe each structure of the heart:
Septum:
Left and right atrium:
Pacemaker:
Left and right ventricles:
Valves:
Answers
The septa or septum, which are muscular walls, split the heart into two sides. The right atrium and ventricle of the heart work together to pump oxygen-poor blood to the lungs.
What are the 4 heart chambers and what do they do?There are two upper and two lower chambers in a typical heart. Blood enters the right and left atria, the upper chambers. Blood is pumped from the heart by the less flexible right and left ventricles.
What does the heart septum look like structurally?The septum of the heart is a wall that divides the right and left sides of the organ.The left atrium and ventricle work together to pump oxygenated blood to the body from the left side.
To know more about right atrium visit:-
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Emily and Vicky are discussing coal as an energy source. Emily claims coal is a renewable energy source. Vicky disagrees.
Who is right, and why?
Vicky; coal is a fossil fuel and supplies on Earth are limited.
Emily; coal burns cleanly, producing only carbon dioxide and water.
Emily; renewable resources are always gases or liquids.
Vicky; it is possible to replenish coal in the short term.
Answers
Answer:
Vicky is right, and Emily is incorrect.
Explanation:
Coal is not a renewable energy source because it is a fossil fuel. Fossil fuels are formed over millions of years from the remains of dead plants and animals. These resources are finite, and their reserves on Earth are limited. Once these resources are depleted, they cannot be replenished in a reasonable timeframe.
Explanation:
Fossil fuels such as coal can not be reproduced from the heat coming from them once coal is burned it is gone it can’t be renewed
The temperature at which a material changes state is either the _____ ______ or the _____ ________.
Answers
Look at the diagram of the rock cycle below.
Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration
Answers
it’s melting
From the diagram of the rock cycle the missing part is ( B ) ; Melting
Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.
Magma is released to the earth surfaces during volcanoes therefore the missing term in the rock cycle is melting
Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.
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How does carbon enter the atmosphere?
(MULTIPLE CHOICE)
A). plant stomata
B). release of CO2 by the oceans
C). animal and human respiration
D). transpiration
E). decomposition of limestone
F). burning of fossil fuels
Answers
Answer:
B, C, E, & F
Explanation:
All have to deal with a release of energy.
What surface process powers the formation of hurricanes?
Responses
winds, caused by uneven heating from the Sunwinds, caused by uneven heating from the Sun
water currents, caused by uneven heating from the Sunwater currents, caused by uneven heating from the Sun
water currents, caused by fast rotation of the Earthwater currents, caused by fast rotation of the Earth
winds, caused by fast rotation of the Earthwinds, caused by fast rotation of the Earth
Answers
Answer:
Explanation:In the Atlantic and Northeast Pacific, we use the term "hurricane" to describe severe storms with high-velocity winds that rotate around a central, low-pressure core. The same type of disturbance in the Northwest Pacific is called a “typhoon” and “cyclones” occur in the South Pacific and Indian Ocean.
In order for a hurricane to form, two things must be present: a weather disturbance, such as a thunderstorm, that pulls in warm surface air from all directions and water at the ocean’s surface that is at least 80° Fahrenheit (27° Celsius). Because it is the interaction of warm air and warm seawater that spawns these storms, they form over tropical oceans between about 5 and 20 degrees of latitude. At these latitudes, seawater is hot enough to give the storms strength and the rotation of the Earth makes them spin.
Hurricanes start simply with the evaporation of warm seawater, which pumps water into the lower atmosphere. This humid air is then dragged aloft when converging winds collide and turn upwards. At higher altitudes, water vapor starts to condense into clouds and rain, releasing heat that warms the surrounding air, causing it to rise as well. As the air far above the sea rushes upward, even more warm moist air spirals in from along the surface to replace it.
As long as the base of this weather system remains over warm water and its top is not sheared apart by high-altitude winds, it will strengthen and grow. More and more heat and water will be pumped into the air. The pressure at its core will drop further and further, sucking in wind at ever increasing speeds. Over several hours to days, the storm will intensify, finally reaching hurricane status when the winds that swirl around it reach sustained speeds of 74 miles per hour or more.
Eventually, hurricanes turn away from the tropics and into mid-latitudes. Once they move over cold water or over land and lose touch with the hot water that powers them, these storms weaken and break apart.
Recent studies have shown a link between ocean surface temperatures and tropical storm intensity – warmer waters fuel more energetic storms.
Answer:
The surface process that powers the formation of hurricanes is winds, caused by fast rotation of the Earth.The formation of hurricanes requires a combination of different factors, including warm ocean waters, moisture, and atmospheric instability. However, the primary driver of hurricane formation is the Coriolis effect caused by the fast rotation of the Earth.As the Earth spins, it causes the air and water to appear to curve as they move across the surface, which generates areas of high and low pressure. These pressure differences then create winds that move in circular patterns, which are the basis of hurricanes.So, winds, caused by fast rotation of the Earth powers the formation of hurricanes.
Highly organized systems like living cells should have _____.
a. High energy
b. High entropy
c. Low entropy
d. Low energy
Answers
1.) The scientific name always consists of two words:
Group of answer choices
Genus and species
Family and species
Species and kindom
Domain and species
2.) Puma concolor is the scientific name for an American Mountain Lion, what is the species?
Group of answer choices
Puma
concolor
mountain lion
American mountain Lion
Answers
2.Puma
Which of the following adaptations would help a tree-dwelling nocturnal scavenger survive in its environment?
Light-colored fur
Heels with fur
Night vision
Short snout
Answers
Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
Answers
Arrow 'f' releases carbon dioxide.
Answer:
F I think I am not sure though hope I helped.
Quite confused can anyone help?
Answers
Answer: A dichotomous key is an important scientific tool, used to identify different organisms, based the organism's observable traits
Explanation:
explain why the meekoceras fossils are considered to be one of the youngest fossils
Answers
Answer:
because they were found the latest and one of the lesser population
Explanation:
How are alleles for the same gene related?
O
A. They have the same genetic sequence but are found on different
chromosomes.
O
B. They have different genetic sequences and are found on different
chromosomes.
O
c. They have the same genetic sequence but are found in different
individuals
O
D. They have different genetic sequences but are found in the same
location on a chromosome.
SUBMIT
Answers
Which of these is affected by forces acting upon an object as well as the mass of the object?
direction
speed
acceleration
velocity
Answers
Answer:
Acceleration
Explanation:
The mass of something makes it more heavier which makes it fall down faster, This is also one of Issac Newtons theories but he mostly stayed on the apple one.
PLEASE HELPP!! DUE TODAY! WHO EVER ANSWER THESE QUESTIONS CORRECTLY WILL GET ALL OF MY POINTS! IF YOU WANT THEM ANSWER THESE QUESTIONS CORRECTLYYY! I HAVE 100 POINTS
Answers
How do oxbow lakes form?
A - Rivers are dammed, and the water builds up, creating a lake.
B - Runoff pools in areas of low elevation, creating a temporary lake.
C - Rivers wear away banks until the bank is broken and the river flows straight.
D - Glaciers leave deep channels in the ground, which fill with water and become a lake
Answers
C - Rivers wear away banks until the bank is broken and the river flows straight.
Answer:
Rivers are dammed, and the water builds up, creating a lake.
Explanation:
Species not originally from an area, that have been _______________or ______________introduced are called ____-_______ species.
Answers
Answer:
There are a few appliciable options, if u had a word bank to use I could probably be more accurate but: trasnported, accidentaily no-native
Explanation:
Species not originally from an area that have been trasnported or accidentaily introduced are called no-native species
Sorry If this isn't the exact answer your teacher wants-but it still works
help pleas im super slow i hate science
Answers
Answer:
I think it's option c 'Biotic and Abiotic'BRAINLIEST
While savannas and temperate grasslands are both types of
grasslands and share many characteristics, they also have
some differences. Compare them below by writing each
characteristic in the correct location. You will use each only
once.
• home to many types of grazers
• experience all seasons of weather
• home to bison
• home to the African elephant
• example: tallgrass prairies of North America
• example: Serengeti in Tanzania
• also known as tropical grasslands
• few trees due to little rainfall
1)
(Savannas)
(Both Types of
Grasslands)
(Temperate
Grasslands)
Answers
Answer:
S - Savannas are typically found in tropical or subtropical regions.
S - Savannas tend to have more trees and shrubs.
S - Savanna's climate is drier than that of a grassland.
G - Grasslands are found in temperature regions.
G - Temperature Grasslands are mainly devoid of trees, receive less rainfall than Savannas & endure broader temperature extremes.
G - Grasslands make up 25 percent of the Earth's land surface and dominate in regions with limited rainfall, which prevents forest growth. This results from nearby mountain ranges that cause rain shadows over adjacent open-range lands.
B - Both represent the world's richest and most diverse ecosystems. They both provide a home for a quarter of the world's population and a habitat for thousands of plants and animals.
B - Many species gather in vast numbers, graze on the varied grasses, and can be found nowhere else on Earth. The coexistence between wildlife and grasses is key to healthy ecosystems. Animal migrations regenerate the landscapes, by controlling pests, dispersing seeds, and trampling invasive species. Through this partnership, grasslands and savannahs generate vital benefits for both people and nature.
B - Ecosystems such as these two in specific are essential for climate mitigation – they store carbon, locking it deep in the soil and extensive root systems. They are the source of or support many of the world’s biggest rivers and wetlands, ensure food security, support livelihoods, and are embedded in the cultural identity of millions of people.
(Also, A savanna or savannah is a mixed woodland-grassland<---similarity)
Explanation: Just research. I decided to state 3 characteristics for both The Savanna and The Grasslands, and then 3 for "B" (both).
(Both Types of Grasslands) experience all seasons of weather, few trees due to little rainfall
(Temperate Grasslands) home to bison, example: tallgrass prairies of North America
Part D
The lineage of pea plants produced round seeds for four generations. The plants that fertilized these pea plants also produced round seeds. However, in the fifth generation, the plant produced to two plants with wrinkled seeds. Can that be possible? Explain your answer using your pedigree chart.
Answers
Answer:
Explanation: black white gray black black white
Which of the following statements is true?
(A) Mutation is the only way to vary the gene pool in a population that reproduces by sexual reproduction.
(B) Fewer harmful mutations are inherited by sexual reproduction than by asexual reproduction.
(C) Sexual reproduction is faster than asexual reproduction.
(D) Offspring from asexual reproduction have more genetic variety than offspring from sexual reproduction.
Answers
Answer:
D is true because young ones produced from asexual reproduction carry more genetic variety
Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z.
Answers
Answer:
X = 120
Y= 710
Z= 620
Explanation:
The Density of Rocks Part A Nguyen uses a triple beam balance to measure the mass of each rock. Read the values on the balance for rocks X, Y, and Z. Rock Balance Reading of Rock Mass (g) X triple beam part of mass balance with top beam with pointer at 20, middle beam with pointer at 0, and lowest beam with pointer at 1 Y triple beam part of mass balance with top beam with pointer at 10, middle beam with pointer at 0, and lowest beam with pointer at 7 Z triple beam part of mass balance with top beam with pointer at 20, middle beam with pointer at 0, and lowest beam with pointer at 6
y = 710
z = 620
1.Which of the following statements is incorrect?
(a) All living things require air to breathe.
(b) We can feel air but we cannot see it.
(c) Moving air makes it possible to fly a kite.
(d) Air is present everywhere but not in soil.
Answers
Answer:
D is incorrect
Explanation:
Soil does have air in it, therefore making the statement false.
Answer:
d
Explanation:
proved by introducing soil i a container containing water, air bubbles are oserved