Answer:
The Oxygen Cycle is an essential biogeochemical Cycle to maintain the concentration and level of Oxygen in the atmosphere. The Oxygen Cycle is one of the main reasons for the existence of life on earth. Without Oxygen, the biosphere could not exist.
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Which statement describes natural selection?
It is the primary mechanism for evolution.
It must act on structural traits.
It acts to cause overpopulation.
It causes learned skills to become heritable traits.
Answer:
It is the primary mechanism for evolution.
Explanation:
What do the domains bacteria and archaea have in common?.
Answer:
Cell membranes are found in both bacteria and archaea, and they both feature a hydrophobic part. Both bacteria and archaea have a protective cell wall.
Explanation:
^^
5 points
The red, yellow and green colors of bell peppers are controlled by two
gènes. One gene determines if the pigment produced by the plant will be
yellow or red, with red being dominant to yellow. Another gene
determines whether chlorophyll is broken down early in the growing
season. If the chlorophyll breaks down early, it is possible to harvest the
peppers after they have turned colors. The green chlorophyll normally
hides the red or yellow color. The gene for early loss of chlorophyll is
dominant to the gene for end-of-season loss. Predict the phenotypic ratio
for a mid-season harvest from a cross between a true-breeding yellow
pepper plant and a dihybrid pepper plant.
O 1 yellow: 1 red: 1 green
O 1 yellow: 2 green: 1 red
O 1 red: 2 green: 1 yellow
O 1 red: 1 yellow
O 1 red: 1 green
The phenotypic ratio of the offspring will be 1 red: 1 yellow if a true-breeding yellow pepper plant is crossed with a dihybrid pepper plant.
What is phenotypic ratio?Phenotypic ratio is the ratio of the phenotype of offspring produced from a cross between two parents.
Let the allele for yellow be y and red Y.
Let the allele for early chlorophyll break down be E and late loss be e.
The genotype of the parents are as follows:
true-breeding yellow parent: yyEE dihybrid parent: YyEeThe cross is as follows: yyEE × YyEe
The offspring produced will be:
yyEE, yyEe, YyEe, YyEe
The offspring will be: 2 yellow, 2red peppers
Therefore, the phenotypic ratio is 1 red: 1 yellow.
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Both parents are dominant tall, naklne the 4 possible offspring
Answer: Both parents are mixed hybrids, name the 4 possible offspring and the expected ratio.
Explanation:
converts matter into energy to create a star's extraordinary heat and light.
A
nuclear fission
B
nuclear fusion
C
nuclear explosion
D
a supernova
please help
Answer:
B. Nuclear Fusion
Explanation:
I gotta A in Bio- Trust :)
Describe the impact of crabs going extinct in this ecosystem. Who will be the most positively affected?
Who will be the most negatively affected? Explain.
Answer:
the prey of crabs would be positively affected, and the predators of crabs would take a negative effect to the extinction of crabs
Explanation:
small clams, starfish, snails, worms, squid, mussels, shrimp and small fish would all be positively affected if crabs were to go extinct, because all that is listed are part of a crabs diet, for both large and small crabs. the ones which would be negatively affected would be the predators of crabs, such as cobia, eels, striped bass, jellyfish, red drum, American eels, sharks, dogfish, sea rays, and smaller fish. they would take a negative affect to the extinction of crabs because as said before, these are all predators of crabs, so the extinction would remove them from their diet, forcing them to find other sources for food
Where does fertilization occur in the female reproductive tract?.
Answer:
Fertilization of an egg by a sperm normally occurs in the Fallopian tubes. The fertilized egg then moves to the uterus, where it implants to the uterine lining
Explanation:
Answer:
Naturally it occurs in the womb or oestrus
The model shows the flow of energy at each trophic level.
Which trophic level contains the most energy, and why?
A Producers; they have the largest number of individuals of all the trophic levels.
A Producers; they have the largest number of individuals of all the trophic levels
B Primary consumers; they have the most variety of plants from which to obtain energy.
C Secondary consumers; they release the least amount of energy into the next trophic level.
D Tertiary consumers; they have the smallest number of individuals that need to collect energy.
Answer:
The correct answer is A.
Explanation:
Producers are photosynthetic organisms such as plants and algae. They absorb energy from the sun and convert it to food. This group includes the largest number of individuals. Each of the higher trophic levels includes fewer individuals than the level below it, and roughtly 90% of the energy consumed by each level is lost as heat, meaning that the amount of energy at the highest trophic level is only a fraction of the energy found at the producer level.
Thinking about function, explain why the left ventricle is much more muscular than the right ventricle.
Answer:
The left ventricle of your heart is larger and thicker than the right ventricle. This is because it has to pump the blood further around the body, and against higher pressure, compared with the right ventricle.
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Humans and mice both have an estimated 30,000 genes. Why aren’t they more alike?
The image shows the formation of daughter cells by the process of meiosis.
How does crossing over in meiosis affect the daughter cells?
A It passes the same genetic information to the daughter cells.
B It passes new genetic combinations to the daughter cells.
C It produces four daughter cells of equal size.
D It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
It produces four daughter cells that are diploids.
Answer:
B It passes new genetic combinations to the daughter cells
In which of the following scenarios is land MOST LIKELY to be degraded as a result of the
"tragedy of the commons"?
A gardener hunts and kills a family of gophers that have dug a burrow beneath his rose
bushes.
O A government sells a section of prairie to a private company interested in drilling for oil.
A rancher cuts down several trees on her property to get wood to use to repair a fence.
A national forest suffers from erosion due to the use of all-terrain vehicles.
Answer:
Likely the government selling off the prairie
Explanation:
Everyone is losing out on the prairie getting sold to a private corporation, hence why this is the tragedy of the commons
The scenario in which the land is most likely to be degraded as a result of the "tragedy of the commons" is a national forest that suffers from erosion due to the use of all-terrain vehicles. Thus, the correct option for this question is D.
What is land degradation?Land degradation may be defined as the process through which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land. All these influences gradually reduce or lose the biological or economic productivity and complexity of rain.
A national forest that suffers from erosion due to the corresponding utilization of all-terrain vehicles ruptures the soil productivity due to erosion. This finally leads to the degradation of land with respect to the "tragedy of the commons".
Therefore, the correct option for this question is D.
To learn more about Land degradation, refer to the link:
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All adaptations are physical.
true
false
small adaptations allow species to occupy similar niches.
true
false
the bottom layer of the food pyramid is generally the largest.
true
false
Answer:
1 false
2 False
3 True
Explanation:
Sorry cannot explain three question right now i definetly will tommorow you can count on me
What two stages of replication do both cycles have in common describe the virion action at each of these stages
Answer:
The stages of replication are Attachment, Penetration and Replication. The following information should be considered:
Explanation:
A bacteriophage means the virus that attacks bacterial cells. The lytic and lysogenic cycles comrpise of two methods of viral replication. In the lytic cycle, the virions generated are released from the host cell while on the other hand in the lysogenic cycle, viral nucleic material are existed into host nucleic material and also they are copied to daughter cells at the time when the host cell reproduces. The common steps in both cycles are given below:Attachment – in this step, the bacteriophage attaches itself to the host surface cell to insert its DNA into the host cell. Penetration – the virus inserts its DNA into the host cell via penetrating the cell membrane of the host cell.Replication – the viral nucleic material is replicated using the host cell's replication mechanism.
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A cell is in the process of meiosis. It has just completed crossing over
and independent assortment to produce new gametes.
Which of the following correctly describes how the new gamete cells are
different compared to the parent cell?
Choose all that apply
The new gamete cells contain half the amount of genetic material as the parent cell
The new gamete cells contain more genetic material compared to the parent cell
The new gamete cells contain completely different gones compared to the parent cell.
The new gamete colls contain a different genetic combination compared to the parent
call
Which option is the portion of the vertebrate skeleton that includes the skull, vertebrae, and ribs?.
Answer:
the axial skeleton
Explanation:
Hope this helps!!!
How do marine plants get energy?
Explain in terms of how sunlight, water and carbon dioxide is absorbed for photosynthesis ( mention the location of stomata when compared to how photosynthesis occurs in a plant that grows on land).
Marine plants are like sea grass, there aquire sunlight from the sun. They are not so deep so they can easily do the process of Photosynthesis.
☆ Process of Photosynthesis in plants,The leaves of a plant play a major role in the process of Photosynthesis.The stomata is located in the leaves of a plant,it helps a plant to absorb sunlight.When a plant takes carbon dioxide from the environment through stomata, and the water absorbed from the roots goes in the chloroplast and and mix with it.By which,the plant absorbs carbon dioxide and water.☆ The stomata is located in the top part of leaf in a plant.
Hope it helpsPLSSS HELP IF YOU TURLY KNOW THISS
Answer:
The answer is. A. Grow
Explanation:
Have a great day or night !
Answer:
the answer is A
Explanation:
What food is made from the same mold as penicillin?.
Answer:
Stilton cheese
Explanation:
Answer:
What food is made from the same mold as penicillin? - Cheese .
state two differences between the light stage and the dark stage of photosynthesis
Answer:
Dark reaction takes place with the presence or absence of sunlight. Light reaction is considered as the light dependent reaction. Light reaction is also called as photo-chemical phase
Explanation:
brain leist bhe ty:)
There are many ways in which
protists can move. Which type
of movement involves using a
pseudopod, or false foot?
A.) amoeboid
B.) ciliated
Answer:
A.) amoeboid
Explanation:
Amoeboid movement is achieved by pseudopodia and involves the flow of cytoplasm as extensions of the organism. :)
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Please rate and mark brainliest!!
Answer:
That would be A. amoeboid
Explanation:
denoting or characteristic of an amoeba:
marine ameboid organisms.
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Where is the error in this Venn diagram?
“Parallel” and “Perpendicular” are switched.
The spring descriptions of motion are switched.
Particles travel along the wave in longitudinal waves.
Particles move long distances in transverse waves.
Answer: B
Explanation: because it helps you
Answer:
The spring descriptions of motion are switched.
Explanation:
Edge
Tomas investigates coloured lights.
(a) Tomas shines red, green and blue light onto a green object.
He draws a diagram to help explain what happens.
-red light
green light
green object
blue light
(1) What colour does the object appear?
[1]
(11) Explain what happens at the surface of the green object.
[2]
The bulk flow of water across membranes is faster than predicted by osmosis alone because water can move through specialized channels called
Define gene manipulation in one or two short sentences
Answer:
....
Explanation:
When factors are in range which an organism cannot survive which zone is represented 
Answer:
When factors are in a range in which an organism cannot survive which zone is represented 
Zones of intolerance – Outermost regions in which organisms cannot survive (represents extremes of the limiting factor)
Explanation:
Emotional reactions can also be attributed to allergies.
True or False
A hydroxyl is present at the 3’ end of the growing dna strand. What is at the 5’ end?.
The following applies to the 5' and 3' end of a DNA molecule:
Hydroxyl group is present at the 3’ end of the growing DNAPhosphate group is present at the 5' end of the growing DNA. What is DNA?DNA meaning deoxyribonucleic acid is a biological molecule made up of monomers called nucleotides.
One nucleotide is joined to another by an ester bond, hence, the DNA molecule has both 5' and 3' end.
Therefore, the following applies to the 5' and 3' end of a DNA molecule:
Hydroxyl group is present at the 3’ end of the growing DNAPhosphate group is present at the 5' end of the growing DNA.Learn more about DNA at: https://brainly.com/question/264225
What will happen you happen if you apply jelly on the leaves of a plant how will photosynthesis work
Answer:
I feel it will no longer be healthy because the jelly applied to the leaves blocked the stomata. As a result, the plant would be deprived of oxygen needed for respiration. It wouldn't be able to carry out photosynthesis since it wouldn't have access to carbon dioxide.
Another Answer could be:
When you apply the jelly to the stomata of the leaves, they become covered, and transpiration ceases. This reduces the escape of water vapour and allows the leaf's moisture to be retained for a longer period of time. However, because the jelly layer prevents all sorts of gaseous exchange, photosynthesis and respiration are also impossible.
Explanation:
What do you think would happen to the cell cycle if interphase was skipped
Answer:
If mitosis skipped any of the stages, it would result in a mutated cell. If the cell skipped Metaphase, it could make daughter cells that are different than the parent cells. If the cell skipped Telophase, the cell would not divide, and the parent cell would attempt interphase with another nucleus.
Explanation:
The cell cycle has two main phases, interphase and mitosis. Mitosis is the process during which one cell divides into two. Interphase is the time during which preparations for mitosis are made.