The rapid diversification of species seen in the fossil record followed by long periods of stasis is part of the ________ model of evolution.
Answer:
punctuated equilibrium
Explanation:
According to the punctuated equilibrium model of evolution, the process of evolution involves a sudden spontaneous burst in the diversity of species (speciation).
This period is now followed by a long period in which the there is no change in the species. This period is known as the period of stasis or equilibrium.
Hence, the rapid diversification of species seen in the fossil record followed by long periods of stasis is typical of the punctuated equilibrium model of evolution.
which best describes a difference between transcription and dna replication
How does a small bulb affect the sensitivity of a thermometer?
Answer:
By sunlight energy
Explanation:
The end of the thermometer is sensitive
Describe your environment
Answer:
Answer to the following question is as follows
Explanation:
The term "environment" refers to everything that surrounds us. It might be living creatures (biotic) or non-living objects (abiotic). Mechanical, biochemical, and other forces of nature are all part of it. ... Animals, vegetation, soil, water, and other moving and non-living objects interact in various ways in the surroundings.
Down syndrome is a genetic disorder that is also called trisomy 21. A person with Down Syndrome has an extra copy of chromosome 21. What can you infer is most likely the genetic mutation that results in Down syndrome?
A: Nondisjunction during meiosis
B: Complete duplication of chromosomes during polyploidy
C: Translocation during genetic replication
D: Crossing over during meiosis
Answer:
A : Nondisjunction during meiosis
Answer:
Nondisjunction during meiosis, resulting in uneven distribution of chromosomes
Explanation:
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Based on the Punnett square, what is the phenotype of the offspring? Hh HH tall short Mark this and return
Answer:
tall
Explanation:
I took the test
A man cannot be a carrier for hemophilia. Why?
Answer:
This means that males only have one copy of most of the genes on the X chromosome, whereas females have 2 copies. Thus, males can have a disease like hemophilia if they inherit an affected X chromosome that has a mutation in either the factor VIII or factor IX gene.
Which direction do
rock fragments eroded
by runoff generally
travel?
A downhill
B uphill
C uphill at certain times
of the day and
downhill at other
times of the day
D horizontally until
they reach an
obstacle that they
cannot pass over
Answer:
A downhill
Explanation:
A runoff happens when water drags sediment from a rock over a sloping terrain. Thus, water drags the eroded fragments of a rock in favor of gravity, pushing these fragments downwards. This is very common in mountainous and steep regions, without vegetation cover, where erosion caused by runoff is very high.
Which process occurs during the light-dependent reactions in photosynthesis?
A. Water molecules are split
B. Carbon fixation occurs
C. PGA is reduced
D. RuBP is regenerated
Answer:
b
Explanation:
explain Calvin cycle
Answer: The Calvin cycle is a process that plants and algae use to turn carbon dioxide from the air.
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Which type of selection is also known as diversifying selection because it tends to favor the survival of two or more different phenotypes in a heterogeneous environment
Answer:
Disruptive selection.
Explanation:
Disruptive selection is also called diversifying selection because it favor the survival of two or more different types of phenotypes in a particular environment. Disruptive selection describes changes in population in which extreme values for a trait are favored whereas the intermediate values are less favored. Due to the increase the variance of the trait which leads to the division of population into two distinct groups.
Which of the following proteins could be used to carry proteins across the
cell membrane?
Answer:
The answer is B :)
Explanation:
Proteins pass through the membrane through passive transport. So the protein used to carry protein through integrated channel membrane. so the correct option is C.
What are proteins?A protein is a naturally occurring complex substance which consists of amino acid residues joined by peptide bonds.
Passive transport is defined as movement of a solute from a region of high electrochemical potential to a region of lower electrochemical potential on the opposite side in cell membrane. The figure representing the protein transportation through protein carrier channel.
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The theory of natural selection states that
Answer:
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
Explanation:
In your own words, what is the definition for the word Cytokinesis?
Answer: division of a cell at the end of mitosis or meiosis
Explanation: cuz im smart
Answer:
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Explanation:
Cytokinesis: During cell division, the process that partitions the cellular contents including the chromosomes, cytoplasm, and organelles into the two daughter cells. Cytokinesis occurs just after the segregation of the duplicated genome.
What is the main function of the structure that is identified as A in the picture above?
It anchors the plant.
It produces food.
It absorbs nutrients.
It supports the plant.
Answer:
It supports the plant.Explanation:
Below are the three main organs that make up the plant body.
The parts of a plant are labeled. The top green leaf part is labeled A. The stem is labeled B. The part that is underground is labeled C.
What is the main function of the structure that is identified as B in the picture above?
It anchors the plant.
It produces food.
It absorbs nutrients.
It supports the plant.The main function of the structure identified as A in the picture is to synthesize the foods of the plants, which is the second option, as plant leaves are essential for the survival and growth of plants, enabling them to produce food, exchange gases, and regulate water balance.
What is the plant leaves function?Leaves are the primary site for photosynthesis, the process by which plants use sunlight, water, and carbon dioxide to produce food (glucose) and oxygen. Leaves also play a crucial role in gas exchange, allowing plants to take in carbon dioxide and release oxygen during photosynthesis and release carbon dioxide and take in oxygen during respiration. Leaves are responsible for transpiration, the process by which water is absorbed by the roots and transported through the plant to the leaves, where it is released into the air through tiny openings called stomata.
Hence, the main function of the structure identified as A in the picture is to synthesize the foods of the plants, which is the second option.
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what lead to the growth of most sea weeds in lakes . please help
Answer:
The more turbid the water, the warmer the water will be, allowing algae to grow quickly. As algae forms, the water becomes increasingly turbid, which fosters an even stronger environment for algal blooms to thrive.
Answer:
carbon and organic substance
Explanation:
when animals are dead under the sea /or when some other substance under go the process of decomposition they produce carbon and some nutrients hence support plants growth
What is Science ???.........
Answer↷
Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.
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Answer:
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Recently discovered genetic evidence shows that multicellular land plants such as corn and wheat, are all of one lineage – they all arose from a single type of algae. Fossil evidence suggests that other types of algae did not have the needed complexity to move into terrestrial ecosystems. Explain at least 3 adaptations that algae would need to be able to survive on land.
Answer:
1) they would need a host or vessel to stay on and feed of of their body
2) they would need some for of reproduction in the host ( mitosis whatever the algae my use )
3) they would need to wisely choose there hosts and of what they feed on so there host doesn’t die quickly
I don’t know if this is what your looking for but these are 3 things that algae would need to live
Two views of a kidney. Which level of organization is shown in the diagram? organ ,tissue, organ system, cell
Answer:
tissue
Explanation:
its tissue
Answer:
b. tissue
Explanation:
edge 2021
When cutting a stem, you can cut straight across, not at an angle *
True
False
Identify the object with greatest inertia.
Bowling ball
Tennis ball
Billiard ball
Basket ball
Answer:
Bowling ball
Explanation:
you have learnt that forest lead to groundwater recharge but don't you think that groundwater should decrease as plant would absorb lots of water?
Answer:
No raining will refill it
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Explanation:
What is one way a mountain might form?
A. Ocean wave force
B. Gravitational pull
C. Glacier movement
D. Volcanic activity
(A p e x)
Answer:
D.) Volcanic Activity
Explanation:
In a forest ecosystem, spotted owls make their homes in the cavities of dead trees. Thissame habitat is home to the rodents that the owls feed on. Human activities, such as logging,have caused the population of the spotted owl to decline. From this information, what statement BEST explains the relationship between humans and the spotted owl
Options are given in the comment section:
Answer:
The correct answer is - Humans have taken away resources needed by the owls, so there are fewer owls.
Explanation:
In this question, it is established that the trees are the habitat for the owls, and also these trees help in their food resources as these trees are habitat of rodents also.
By logging, humans destroy the habitat of both owls and rodents they feed on and important for their growth and survivability. Humans have caused the removal of required resources for the owls therefore, there are fewer owls.
How does evolution explain both the unity and the diversity of all living things?
Answer:
Having a similar dna makeup as one animal but our features and genetic makeup different than that one animal.
Explanation:
There is unity in having the same dna as one animal but diversity in our features
Complete the sentences with the appropriate words Cells use ____________ to power most cellular activities that require work.
Answer:
ATP
Explanation:
"" what is photosynthesis "'
[tex]\sf{\overline{\underline{PHOTOSYNTHESIS }}}[/tex]
Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive.Carbon dioxide, water and light are all needed for photosynthesis to take place.Photosynthesis happens in the leaves of a plant.
Question 5
20 pts
If enzymes could not be used during a reaction, which of the
following could be added to a system to make the reaction occur?
O energy (possibly heat)
water
0 product
O substrate
Answer:
substrate is wright
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What's the importance of sun in power supply??
Answer:
It provides solar energy to supply power through solar panels
Answer:
The sun provides more than enough energy to meet the whole world's energy needs, and unlike fossil fuels, it won't run out anytime soon. As a renewable energy source, the only limitation of solar power is our ability to turn it into electricity in an efficient and cost-effective way.
Explanation:
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During intense exercise, the muscle cells require constant supply of ATPs but the supply of oxygen is low. In that case - the muscle cells of the person will switch from which to which pathway?
Answer:
Aerobic to lactic acid fermentation pathway
Explanation:
ATP, which is the usable form of energy in living cells, is obtained via a process called RESPIRATION. However, aerobic respiration requires a constant supply of oxygen to occur. Hence, during an intense exercise where the supply of oxygen is low, the muscle cell has to switch from the respiration pathway that requires oxygen to one that doesn't.
Fermentation is a kind of cellular respiration that does not require oxygen to occur. In the muscle cells of animals (humans inclusive), lactic acid is the product of the fermentation process, hence, it is called LACTIC ACID FERMENTATION. This means that the muscle cells, in a low supply of oxygen, will switch from AEROBIC to LACTIC ACID fermentation pathway.
