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:
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
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!!!
offering 20 pts and brainliest!!! Explain how energy is transferred in a food web. (4 points)
Answer:
Energy is transferred as 100% on the bottom of the pyramid because producers, like plants and trees, depend on sunlight to grow. It is the least of the top because they mainly depend on other animals for food. Hope this helps:)
Energy is transferred 101% .
When a producer eat by other organism energy also transferred and so on
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:)
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
The smallest of the single-celled organisms that assist with decomposition in the soil are most likely to have which of the following characteristics?
Answer:
a. A different form of DNA containing uracil instead of thymineb. Chitin or cellulose in their cell wallsc. Branching, ether-linked hydrocarbons in their cell membranes d. A special form of RNA polymerase unique to their domain
Explanation:
NEED HELP ASAP
In vitro experiments model the conditions in living cells. Which of the
following is not an advantage of in vitro experiments ?
O A. The lack of interference from cell parts during observations
O B. The reduction in extra substances that can confuse results
O c. The unnatural behavior of some enzymes in a test tube
O D. The ability to control all possible variables
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:
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
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.
To learn more about angular unconformity, refer to the link:
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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.
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 are ionic compounds and covalent molecules different
Answer:
Ionic compounds are formed by the transfer of elecrons from highly electropositive element to highly electonegative element.
Covalent compounds are formed by the shairing of electrons between elements.
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.
Which event is an example of sexual reproduction in plants?
O A. Pine trees produce seeds in cones.
B. A kalanchoe produces plantlets on its leaves.
C. Mosses form spores in capsules.
D. A potato has buds that can grow into new stems.
Answer:
A
Explanation:
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.
_______ such as the MCL and ACL connect bone to other bone at joints.
In the phosphorous cycle, phosphorous enters the food chain when
A: it is in atom form
B: it is in the form of phosphate and bound in solids
C: it is the form of phosphate ions and dissolved in water
D: it is exposed to the air during weathering
Answer:
The correct answer is option C.
Explanation:
The biogeographical cycle that tells about the movement of the phosphorous in the different spheres such as the lithosphere, geosphere, biosphere, and hydrosphere known as the phosphorous cycle.
In the soil and sediments, the phosphorus is present in the form of ions and dissolved in water, which is move through the roots to the plant and enters in the food chain and biosphere.
Thus, the correct answer is - option C.
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
What describes the materials and equipment needed and procedures to follow in an
experiment?
Answer:
The experimental protocol describes and determines materials, equipment, and procedures.
Explanation:
*PLEASE ANSWER* What is a sudden increase in temperature of a natural body of water that can harm aquatic organisms? a.) land pollution b.) thermal pollution c.) air pollution d.) acid rain
Answer:
The answer is option B.
Thermal pollution
Hope this helps you
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:
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:
PLLLEAAASE HELP!! This presentation will explain how energy from the sunlight is used during photosynthesis
• Detailed descriptions of what happens during
A) photosynthesis (the light-dependent reactions and the light-independent reactions)
B) transitioning between photosynthesis and respiration
C) cellular respiration or fermentation
• An explanation of how the molecules in photosynthesis and cellular respiration are similar. Please include descriptions of the molecules involved in
each of the processes above.
• Complete sentences should be used in all written descriptions and explanations
• Illustration , diagrams, or images that help explain the transition between the reactions of photosynthesis and cellular respiration
A) You can create your own images, or use images from websites or other sources
B) if you use premade images, you will need to give a reference of the source of that image and create your own unique caption to describe the
image
Your presentation should be detailed and organized, but it can be presented in a variety of ways
• ustrated story
• slide presentation
. comic strip
Answer:
Detailed descriptions of what happens to the carbon atom:
during photosynthesis (the light-dependent reactions and the light-independent reactions)
transitioning between photosynthesis and respiration
during cellular respiration or fermentation
An explanation of how the carbon atom is transferred between molecules. Please include descriptions of the molecules involved in each of the processes above and be sure to mention the movement of electrons and energy as the carbon atom moves from one reaction to another.
During cellular respiration:
The cell is oxidized.
Transitioning between photosynthesis and respiration:
It is taken from CO2 converted to glucose then either converted back to CO2 or it is used for other processes and may expelled another way.
How is the carbon atom transferred between molecules:
The electrons move through a series of electron carrier proteins, called the electron transport chains, within the thylakoid membrane.For every 12 of the resulting three-carbon molecules made, two are removed to build organic compounds and 10 continue on in the cycle. The two three-carbon molecules that are removed bond together, forming a six-carbon sugar such as glucose.
What happens to the carbon atom during:
Photosynthesis: carbon is taken in from the air, in the form of carbon dioxide and through the energy provided from sunlight it is converted to a carbon chain known as a sugar.
Explanation:
I did this in 4th grade.
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.
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
Learn more about photosynthesis here:
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Please help me, and only provide with the given answers so I am not confused. The curve on the left shows the height of a population of penguins. The curve on the right shows the population five years later. What has happened to this population? (Available answers are in photo) Will mark best answer BRAINLIEST
Explanation:
DIRECTIONAL SELECTION!!!!!!!!!!!!!!!!!!
The population of penguins has gone through the directional selection.
What is directional selection?It is a mode of negative natural selection in which an extreme phenotype is favored over other phenotypes.
This causes the allele frequency to shift over time in the direction of that extreme advantageous phenotype.
How these two graphs shows directional selection?On each graph, the X-axis variable is the type of phenotypic trait (here height) and on the y- axis variable is the number of penguins.
Left graph shows the population before directional selection and right graph shows the population after directional selection.
Here height of the penguins reduces and favored over time due to directional selection.
To know mote about directional selection :
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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.
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
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.