Answer:
C
Explanation:
thats not true
what are the 2 limits of natural selection?
Answer:
In the explanation box
Explanation:
- limited contribution to the origin of species;
- limited prevention of the extinction of species; and.
- limited prediction of the results of selection.
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Help please lollll .
Answer:
the answer is an organ system
Explanation:
Please help me!!please
Answer:
C.
Explanation:
:DDD
There are two different types of cell transportation. Which of the following requires energy?
a. Facilitated Diffusion
b. Active Transport
c. Osmosis
d. Simple Diffusion
please help :))
Answer:
The type of cellular transport that requires energy is active transport (option b).
Explanation:
Active transport —unlike passive transport— involves the passage of molecules or substances through the membrane against a concentration gradient, a process that requires the use of energy.
In the case of active transport the energy for the process comes from the ATP molecule and the mechanism for this to be possible is by means of an ATPase incorporated into the transporter.
The transport of glucose and the sodium-potassium and calcium pumps are examples of this type of transport.
The other options are not correct because simple diffusion, facilitated diffusion and osmosis are passive transport mechanisms that do not require the use of energy.
Which statement best describes a keystone species?
O A. It is the largest population in the community.
B. It occupies the highest trophic level in the
community
C. Its absence would affect many organisms in the
community.
O D. It is the largest animal in the community.
what is the most common type of petrified remain fossils
Answer:
After an organism is buried, minerals carried by water such as silica, calcite or pyrite replace the organic material in the fossil. Some common examples are most dinosaur bones, petrified wood, and many trilobite fossils.
Answer:
The answer is wood
Explanation:
Describe the path that energy takes, from solar energy reaching earths surface to energy used to power cell processes in animals
The path that energy takes, from solar energy reaching the earth's surface to energy used to power cell processes in animals - Animals eat the grass that captures the energy from the sun which gives the animal nutrients
The Sun is the primary source of energy for organisms and the ecosystems of which they are part.
Producers, such as plants and algae, get their energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter.This process begins the flow of energy through almost all food webs.The energy present in these photosynthetic organisms store then transferred to various animals when they feed on these plants and algae and get their food and energy.Thus, the correct answer would be - Animals eat the grass that captures the energy from the sun which gives the animal nutrients
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A rock rests completely still at the top edge of a tall cliff. The rock has - () 17 points
no kinetic energy of potential energy
a lot of kinetic energy but no potential energy
a lot of potential energy but no kinetic energy
both kinetic energy and potential energy
You have isolated and purified a new species of cells from the rain forest and you want to place this new species in the appropriate branch of the tree of life. You sequence the ribosomal RNA genes from these cells and discover that for one particular region of the ribosomal gene (the rRNA) the RNA sequence is AAUGAAGG. You have sequences from the same region of the ribosomal genes (the rRNA) from each of these species: bacteria, eukaryote and archaea, which are listed below.
bacteria AUAGAUGG
eukaryote AAAGAAGG
archaea AAUGGAGU
Based on these sequence results, to which branch of the tree of life should you assign this new species?
a. eukaryote
b. archaea
c. bacterial
d. bacteria and archaea
e. There is not enough information.
Answer:
The correct answer is: option A. eukaryote.
Explanation:
The sequence of the newly found rRNA is AAUGAAGG is similar to the sequence is given for the eukaryote which is AAAGAAGG, there is only one exception at 3thirs position of the sequence which is instead of uracil there is adenosine. However, this could be a result of the transversion mutation where A converted into U of the period of evolution.
On the other hand, the rRNA of bacteria and archaea have a very high difference in their sequence with a change in one than one base.
Which of the following is defined as a process of weathering able to move rock and soil particles from one area and deposit them in another?
A. expansion
B. decomposition
C. erosion
D. hydrolysis
Answer. erosion..eriosion is the movement of rock and solid particles from one area to another.
Explanation:
Fluid in the inner ear creates a sense of
Answer:
It is also essential to our sense of balance: the organ of balance (the vestibular system) is found inside the inner ear. It is made up of three semicircular canals and two otolith organs, known as the utricle and the saccule. The semicircular canals and the otolith organs are filled with fluid.
I hope this helps you.
In 20 words or fewer, what science questions would you ask about the video?
Answer:
What is the video about? Who came up within the Concept
Explanation:
what does LOL mean ?
Answer:Laugh Out Loud
Explanation:
Answer:
Laugh Out Loud
Explanation:
Usually used in texts
Believe it or not, ____________ within an ecosystem is NOT transferred back and forth between all levels. Energy begins with the ____________ and flows in ____ direction to ____________, to ____________, and, finally, to ____________.
Answer:
Energy
Sun
One
producers
Consumers
Decomposers
Explanation:
Believe it or not, __Energy__ within an ecosystem is NOT transferred back and forth between all levels. Energy begins with the __Sun__ and flows in __One__ direction to _producers_, to _Consumers_, and, finally, to _Decomposers_.
what is the names of these 2 muscles? it's an arm btw
What are different kinds of farming?
Answer:
There are three two types of farming
Explanation:
1: For Business
2: For live
Explanation:
Arable farming
pastoral farming
mixed farming
subsistence farming
commercial farming
Extensive and intensive farming
Nomadic farming
sedentary farming
poultry farming
fish farming
Is brown algae a plant like protist or a fungi like protist? Why?
Answer:
brown algae is seaweed
Explanation:
which is a plant
What is DNA replication? Highlight your answer.
A. Conservative
B. Non-conservative
C. Semi-conservative
D. None of the above
Answer:
C
Explanation:
29
30
5.5. The smallest cell in the world is:
Answer:
Mycoplasma
Explanation:
It is about 10 micrometers in size.
NaCl dissociates into 2 particles in water Na and Cl. If the solution in question 4 contained 0. IM NaCl instead of 0.IM sucrose, what is the of the solution, and in which direction would the net flow of water be?
Answer:
-4.87 (see image for further explanation)
Explanation:
Water potential of solution will be − 4.87 The direction of water potential will be out of root into salt solution.
What is water potential?ψ = iCRT
Where, i = −2,
T = 273+ 20
R= 0.831
ψ = ( −2 ) ( 1) (0.831) ( 273+ 20)
= − 4.87bars
Water potential of a substance is equal to pressure
Ψ = ΨS + ΨP
Ψ = 0 + ( 4.87)
= − 4.87bars
Therefore, Water potential of solution will be − 4.87 The direction of water potential will be out of root into salt solution.
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Which of the following is not characteristic of a behavior?
a.
It can be observed.
b.
It can be recorded.
c.
It can be influenced by the environment.
d.
It can include a person’s thoughts.
Answer:
D.
Explanation:
Characteristcs do not include a persons thoughts.
Answer:
Its 100% DExplanation:
got it on edg
Your three blood cells types have different sizes, shapes, and functions. yet they all started out alike. within each cell of your body there are______. which give the instructions for cell process. these instructions include the differentiation of your blood cells.
Answer:
white blood cells (monocytes, lymphocytes, neutrophils, eosinophils, basophils, and macrophages), red blood cells (erythrocytes), and platelets
Gymnosperms are classified as which of the following?
O Vascular
Non-vascular
Monocot
Dicot
Answer:
D. Dicot
Explanation:
...... .............. ..
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the following in NOT a component of a prokaryotic cell
a. nucleus
b. ribosomes
c. cell wall
d. flagella
what do you think causes different phenotypes in organisms how does the phenotype depend on its genes (genotype)
Answer:
They difference in phenotypes is dependent on the genes. The more dominant gene will overpower a recessive gene, or if there are two recessive genes together, that will be the phenotype. When things are cross breaded they introduce different genotypes that allow for different looking phenotypes.
Example: Dominant blue flower (Bb) mixed with recessive yellow flower (bb)
B b
b Bb bb
b Bb bb
There is a 50/50 chance the offspring will be either blue or yellow
The differences in phenotypes are determined by genes. The more dominant gene will completely overwhelm a recessive gene, or if two recessive genes coexist, the phenotype will be that. When things are crossbred, unique genotypes are introduced, allowing for different-looking phenotypes.
What is phenotype?A "phenotype" is simply an observable trait. "Pheno" simply means "observe," and it derives from the same root as "phenomenon."
The differences in phenotypes are determined by genes. The more dominant gene will completely overwhelm a recessive gene, or if two recessive genes coexist, the phenotype will be that.
When things are crossbred, unique genotypes are introduced, allowing for different-looking phenotypes.
Thus, in this way, phenotype is dependent on genotype of the organism.
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Cellular respiration produces
A. ATP.
B. Oxygen
C. cellulose
D. glucose
Answer:
ATP
Explanation:
Carbon dioxide is transported from your mitochondria out of your cell, to your red blood cells, and back to your lungs to be exhaled. ATP is generated in the process.
Cellular respiration produces ATP. Thus, option A is correct.
what is cellular respiration?The process in which conversion sugars into energy (ATP) occur by cells called as cellular respiration. It can be used by a number of cellular components as a source of energy.
There are two types of respiration occur such as aerobic and anaerobic respiration.
Aerobic respiration occur in presence of oxygen which act as a powerful electron acceptor, mostly seen in eukaryotes.
In case of prokaryotic organisms such as bacteria and archaebacteria, other types of respiration occur.
Carbon dioxide is also a product of cellular respiration which is released as a waste product.
There are three major types of cellular respiration occur such as aerobic, lactic acid fermentation, alcoholic fermentation.
In aerobic respiration 36 ATP, where as in lactic acid fermentation 2 ATP and alcoholic fermentation 2 ATP are produced.
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why must controlled fires be set in some ecosystems? what are some advantages and disadvantages?
Answer:well dry areas could catch fire and become out of hand or some plants may be harmed due to smoke
advantages:trimming area and making room
disadnstages:possible forest fire,harms plants,ruins animals homes
Explanation:
what creates the bubble like film on the surface of water
Answer:
Surface tension
Explanation: