Answer:
C. Because having similar traits shows that organisms have similar
DNA and D. Because shared traits can be used to make dichotomous keys
Explanation:
I'm pretty sure these are the right answers. The other two choices seemed off.
Two reasons scientists use shared traits to classify organisms are that observing the traits is easier than comparing the genes that cause them, which is option A, and shared traits can be used to make dichotomous keys are two reasons scientists use shared traits to classify organisms.
What is dichotomous keys ?Shared traits are useful in classifying organisms for several reasons as they provide a way to group organisms that share similar characteristics, which can help scientists understand relationships between species. Shared traits can be used to make dichotomous keys, which are tools that help identify organisms based on their physical characteristics. While shared traits may not always indicate a close genetic relationship, they can provide clues about the evolutionary history of organisms.
Hence, two reasons scientists use shared traits to classify organisms are that observing the traits is easier than comparing the genes that cause them, which is option A, and shared traits can be used to make dichotomous keys are two reasons scientists use shared traits to classify organisms.
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How are air and ocean currents linked?
A. Cold water
produces low-lying,
high-pressure wind
currents and warm
water produces
higher, low-pressure
wind currents.
B. Low-lying, high-
pressure wind
currents produce cold water currents and higher, low-pressure wind currents produce warm water currents
C.Warm water produces low-lying, high-pressure wind currents and cold water produces higher, low-pressure wind currents.
D.Low-lying, high-pressure wind currents produce warm water currents and higher, low-pressure wind currents produce cold water currents.
Answer:
c
Explanation:
because the ocean current circulates the warmth into cold wind current during the day
design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.
Answer:
A+B C. Only one of the unknown substances is a catalyst, and the others are nonreactive with A, B, or C. When 10 mL of A is added to 10 mL of B the reaction takes twenty seconds. Bubbles form when the product C is created. The student prepares three test tubes, each containing both reactants A and B. She adds unknowns X, Y, and Z to test tubes 1, 2, and 3, respectively.
Answer:
Prepare three test tubes containing reactant A
Prepare three test tubes containing reactant B
Add one test tube of reactant B and one unknown to one test tube of reactant A. Repeat for other two unknowns
Time the reaction until the bubbling stops
The unknown that causes the reaction to occur the quickest is the catalyst
Explanation:
Did the test
Polar and tropical regions maintain fairly constant average temperatures because
Answer:
The continual motion of air and water reallocates heat energy throughout earth.
Explanation:
Limestone is a rock formed from calcite. Calcite can be easily dissolved by acids. Marble is a rock formed from limestone. Therefore, what can be said about marble? Question 4 options: Marble is a metamorphic rock Marble can be dissolved by acids Marble can be dissolved by acids All of these are correct
Answer:
All of these are correct
Explanation:
According to the question, marble is a rock formed from limestone, which in turn is also formed from Calcite. This shows that marble is a kind of metamorphic rock because a metamorphic rock is any rock that is formed by the alteration of other rocks caused by heat, pressure or chemicals etc. These changes that occurs in the previously existing rocks are called METAMORPHOSIS.
Hence, since marble is formed from limestone, it concludes that marble is a metamorphosed rock formed from a previously existing limestone rock. Also, since Calcite, a precursor of limestone that marble is formed from can be degraded by acids, both limestone and marble which are formed from it will also be dissolvable by acids.
The connection between producers and consumers is that only
a: heterotrophs can perform photosynthesis to produce energy for all life
b: heterotrophs can perform cellular respiration producing oxygen for all organisms
c: producers use cellular respiration to produce energy for all life
d: autotrophs can use sun energy to produce energy for all organisms
What is the electron configuration of an element with atomic number 20? A. 1s2 2s2 2p6 3s2 3p5 B. 1s2 2s2 2p6 3s2 3p6 C. 1s2 2s2 2p6 3s2 D. 1s2 2s2 2p6 3s2 3p6 4s2 E. 1s2 2s2 2p6
Answer:
electron configuration is 2,8,8,2
Explanation:
1s2 2s2 2p6 3s2 3p6 4s2
PLEASE ANSWER ASAP!!! illegal fishing is thought to account for what percentage of fish caught? 10–20 percent 15–40 percent 20–50 percent 50–70 percent
Answer:
10-20 percent
Explanation:
Which of the following describes what might happen if the septum in the heart ruptured? (2 points)
A. Blood from outside the heart would leak into the heart.
B. Blood entering the atria would leak into the ventricles.
C. Oxygenated and deoxygenated blood would mix in the heart.
D. Incoming and outgoing blood would mix, causing turbulence
option c is the answer
Explanation:
septum is present between the two ventricles and separates the oxygenated and deoxygenated blood. hence if it gets ruptured then the two blood will mix up. thanks
Growing two species of
Paramecium in the same test
tube is an example of?
A. Intraspecific competition
B. The founder effect
C. Interspecific competition
D. A population bottleneck
Answer:
Intraspecific Competition
Which of the following statements describes ways cellulose and starch are similar to and different from each other?
Explanation:
Similarities
Both starches and glycogen are polymers formed from sugar molecules called glucose. Each independent molecule of glucose has the formula C6H12O, and joining these subunits together in a certain way forms the long chains that make up glycogen and starch.
Sucrose, glucose and starch are related because they're all forms of carbohydrate.
Differences
Starch is formed from alpha glucose, while cellulose is made of beta glucose. The difference in the linkages lends to differences in 3-D structure and function. Starch can be straight or branched and is used as energy storage for plants because it can form compact structures and is easily broken down.
Are biogeochemical cycles transported by water??
Answer: Biogeochemical cycles are not transported by water.
Explanation: Biogeochemical cycles are not transported by water cycle because itself is a biogeochemical cycle.It is the key point of the cycling of the other biogeochemical cycles,this means it is part of the three important biogeochemical cycles.
Contains nitrogenous bases: DNA, RNA, or both.
Answer:
both
Explanation:
Which one of the following statements about the troposphere is
true?
Select one:
a. The troposphere is the atmospheric layer farthest from
the earth's surface.
b. The tropospheric gases move because of convection
currents.
c. The temperature in the troposphere ranges from 100° C
to -150° C.
d. The outer boundary of the troposphere is called the
stratopause.
e. Weather does not occur in the troposphere.
Answer:
B. The tropospheric gases move becuase of convection currents.
Explanation:
The uneven heating of the regions of the troposphere by the sun ( the sun warms the air at the equator more than the air at the poles )causes convection currents, large-scale patterns of winds that move heat and moisture around the globe. In the Northern and Southern hemispheres, air rises along the equator and subpolar ( latitude about 50 to about 70 north and south ) climatic regions and sinks in the polar and subtropical regions. Air is deflected by the Earth's rotation as it moves between the poles and equator, creating belts of surface winds moving from east to west ( easterly winds ) in tropical and polar regions, the winds moving from west to east ( westerly winds ) in the middle latitudes. This global circulation is disrupted by the circular wind patterns of migrating high and low air pressure areas, plus locally abrupt changes in wind speed and direction known as turbulence.
why is the dominant allele called dominant.
A. There is always at least one dominant allele
b. there are always more dominant alleles in a genotype
c. it dominates the phenotype
d. the dominant alleles are the only kind that determine phenotype.
Answer:
It dominates the phenotype
Explanation:
What is black hole in simple words?
Answer:
Not sure.....................
Answer:
here are some examples:
-darkness
- hollow
- hopeless
-isolated
-unimaginable
ect.
Explanation:
i...i
-----
hope this helped:)
________ is a process that creates genetic variety in cells. (2 points)
Cell fission
Meiosis
Mitosis
Asexual reproduction
Answer:
B
Explanation:
I believe it is meiosis because there are two parts in which it helps to increase genetic variety. In prophase 1, the genes cross over, which increases the variety. Also, the chromosomes are assigned randomly in Metaphase 1.
Hope this helps:)
Answer: meiosis
Explanation:
Which best contrasts flocking and schooling? Flocking provides aerodynamic efficiency and schooling provides hydrodynamic efficiency. Flocking provides protection and schooling provides hydrodynamic efficiency. Flocking provides aerodynamic efficiency and schooling provides foraging benefits. Flocking provides reproductive benefits and schooling provides foraging benefits.
Answer:
A
Explanation:
The correct answer would be flocking provides aerodynamic efficiency and schooling provides hydrodynamic efficiency. Mark as brainliest please:) I hope this helps!
Answer:
yes the answer is A
Explanation:
what does varying locally mean?
Answer:
Differently in a local area
Explanation:
HOPE THIS HELPS Please mark as brainiest!
Answer:differently in a local area
Explanation:
Have a great day!!!
Plants absorb sunlight through Photosynthesis. Which characteristic of life is this an
example of?
A. Obtains and uses energy
B. Responds to stimuli
C. Grows and develops
D. Homeostasis
Answer:
A. Obtains and uses energy
The characteristic of life shown here is plants obtain and use energy.
What is photosynthesis?By using the energy from sunlight, plants, some bacteria, and some protozoa make sugar, which cellular respiration then transforms into ATP, the "fuel" that all living things use. The green pigment chlorophyll is responsible for the transformation of inefficient solar energy into useful chemical energy. The photosynthetic process makes use of water and emits the oxygen that is vitally necessary for our continued existence.The overall reaction of photosynthesis is:6H₂O + 6CO₂ + light energy → C₆H₁₂O₆+ 6O₂
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What is a similarity between a tulip and a crocodile? A function of both of their outer coverings is to reduce water loss. In both the tulip and crocodile the male reproductive organ is the testes. The tulip and crocodile both have internal skeletons that support them. The outer coverings of the tulip and crocodile both protect the organism.
Answer:
A function of both of their outer coverings is to reduce water loss
Explanation:
Crocodile and Tulips are both distinct species of organisms. Crocodile belongs to Kingdom Animalia while Tulips belong to Kingdom Plantae. However, despite their elaborate differences, they do have one feature in common, which is the function their outer covering performs.
Tulips are temperate plants I.e. like cold regions, hence, their outer covering functions to prevent excessive loss of water. On the other hand, the scaly skin of the crocodiles help them against water loss. This is common between the two different species.
Carefully study the diagram below and answer the questions that follow. a. Label the structures A to F b. Name two structures that are concerned with temperature regulation in Man. c. State two functions of D d. State two functions of G. e. Where in Man is structure G thickest? f. What labelled part is involved in excretion by the skin?
Answer:
a. A - Free Nerve ending
B- Hair erector muscle
C- Capillary
D- Sebaceous Gland
E- Sweat Gand
F- Epidermis
b. Two structures that are concerned with temperature regulation in Man are sweat glands and blood vessels. Sweat glands of the dermis, secrets sweat which then evaporate on the skin surface and maintain body temperature. constricted blood vessels retain the heat while dilated vessels allows heat loss.
c. Sebaceous gland is an exocrine gland that secret sebum having following functions:
protect skin from bacteria and microorganisms.reduces water loss from skin surface.d. G refers to stratum corneum, its functions are:
Forms a barrier to protect underlying tissues from damage.It contains keratin protein which keeps the skin hydrated.e. Stratum corneum is thickest in palms and soles in man.
f. Sweat glands are involved in the excretion by skin as they secret a fluid waste sweat and release it at skin surface.
question:
Carefully study the diagram below and answer the questions that follow. a. Label the structures A to F b. Name two structures that are concerned with temperature regulation in Man. c. State two functions of D d. State two functions of G. e. Where in Man is structure G thickest? f. What labelled part is involved in excretion by the skin?
Answer:
a. A - Free Nerve ending
B- Hair erector muscle
C- Capillary
D- Sebaceous Gland
E- Sweat Gand
F- Epidermis
b. Two structures that are concerned with temperature regulation in Man are sweat glands and blood vessels. Sweat glands of the dermis, secrets sweat which then evaporate on the skin surface and maintain body temperature. constricted blood vessels retain the heat while dilated vessels allows heat loss.
c. Sebaceous gland is an exocrine gland that secret sebum having following functions:
protect skin from bacteria and microorganisms.
reduces water loss from skin surface.
d. G refers to stratum corneum, its functions are:
Forms a barrier to protect underlying tissues from damage.
It contains keratin protein which keeps the skin hydrated.
e. Stratum corneum is thickest in palms and soles in man.
f. Sweat glands are involved in the excretion by skin as they secret a fluid waste sweat and release it at skin surface.
Mechanical weathering _____ change the composition of a rock, whereas chemical weather ______. Question 8 options: Does; does not Does not; does
Answer:
Mechanical weathering does not change the composition
Chemical weathering does change the composition
Explanation:
How does El Nino impact
climate in the US?
A. Precipitation increases in the
north and decreases in the south.
B. Winds in the south move east
causing increased tornadoes.
C. Winds in the north move west,
causing increased tornadoes.
D. Precipitation increases in the
south and decreases in the north.
During El Niño, the jet stream is oriented from west to east across the southern portion of the United States, making the region more susceptible to severe weather outbreaks.
What's the main term used to locate in the alphabetic index for acute perforated gastrojejunal ulcer
Answer:
K28. 1-
Explanation:
ICD-10 Code for Acute gastrojejunal ulcer with perforation- K28. 1- Codify by AAPC.
The three parts of an amino acid are the amino group, the carboxyl group, and the group.
Answer: The R group
Step-by-step explanation:
Which type of geologic event has to occur to create an angular unconformity
Answer:
folding or tilting of rock layer
hope this answer correct (^^)
The type of geologic event that has to occur to create an angular unconformity is the folding or tilting of rock layers. The correct option is 3.
What is an angular unconformity?An erosional surface that truncates older, tilted sedimentary layers and is covered by younger layers that are oriented parallel to the unconformity is known as an angular unconformity.
Angular unconformity typically occurs when sedimentary rock layers are deposited on top of one another and inclined, with the upper layer being younger than the lower layer. The unconformity might be thought of as the time when there were no preserved sediments in the area.
Tilting of rocks can take many different forms, including forcing the rock upward or folding sedimentary rock.
Therefore, the correct option is 3.) folding or tilting of rock layers.
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The question is incomplete. Your most probably complete question is given below:
1.)The tilting of rocks or folding or uplifting of the rock.
2.) deposition of new sediments
3.) folding of tilting of rock layers
4.) by the setting of metamorphic rocks.
Activity Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part A What are the student’s observations and inferences before he starts his investigation?
Answer:
OFFICIAL ANSWER (do not copy verbatim):
The student has observed that artificial fertilizer makes his plants grow faster and taller than plain soil. He knows that compost is a natural fertilizer. So, he infers that compost will make his plants grow at a faster rate than they grow in plain soil.
Explanation:
How does the nervous system work with the circulatory system
Answer:
look at the explanation
Explanation:
the circulatory system also known as the heart, lungs, brain and blood stream are all connected to the brains by nerves, sending small electric currents (commands) to the organs telling them what to do. when the nerves are stimulated, they send signals to the brain giving it information.
_______ such as the MCL and ACL connect bone to other bone at joints.
What are the applications of Bioanalytical Service?
Explanation:
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