Nocturnal animals possess a pathway through which rods connect to the same “dark” circuits used by cones, which allows them better perception of edges, movement, and silhouettes in dim light. Even the nuclei of the rod cells are adapted for night vision. ... One can only guess at what nocturnal animals see.
In recent scientific history, the classification of the protist kingdom has changed several times. They are now grouped to consider their development over time instead of simply by what they look like or how they move. Which statement best describes the reason for these classification changes?
A. Traditional scientists did not have enough information about protists to attempt to clasify them.
B. Originally, scientists drew inaccurate conclusions about the classification of protists based on flawed data.
C. Changes in classification of this kingdom are made each time modern scientists discover a new species of protists.
D. The classification of protists changes as scientists learn more about how these organisms are related to each other and to members of other kingdoms.
Answer:
D
Explanation:
The statement that best describes the reason for these classification changes is the classification of protists changes as scientists learn more about how these organisms are related to each other and to members of other kingdoms. The correct option is D.
What are the characters of the protist kingdom?All eukaryotes that are not fungi, animals, or plants are collectively referred to as protozoa. It is a tremendously diverse group of species as a result.
Beyond a rather straightforward organizational structure, the eukaryotes that make up this kingdom, Kingdom Protista, do not share many characteristics.
Therefore, the correct option is D. The classification of protists changes as scientists learn more about how these organisms are related to each other and to members of other kingdoms.
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compare the composition of lymph with that of blood plasma in the following two situations:
(a) Lymph that has just left a lymph node.
(b) Lymph formed in the vicinity of the small intestine.
please help asap
please help me at least one of the question
Answer:
Lymphatic vessels and ducts provide the complex transportation network of the lymphatic system. These vessels carry a fluid called lymph away from body tissues and capillary beds to be filtered by nodes and organs, then returned to the bloodstream.
Explanation:
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In the control group, how did the number of grass blades change over the three week period?
In the experimental group, how did the number of grass blades change over the three week period?
Was there a measureable difference in the number of grass blades between the control group and the experimental group at the end of three weeks?
Answer:
decreased
decreased
yes
Explanation:
edge
Answer:
decreased
decreased
yes
Explanation:
please help ASAP i’ll give brain
Answer:
27. f 28. d 29. b 30. a 31. g 32. h
Explanation:
Monitoring a population's age structure plays an important role in successful wildlife management. Which of the following scenarios can be an indicator of overexploitation in fish?
A)
fish catch not reaching older ages
B)
decline in fish catch
C)
both a and b
D)
none of the above
Answer:
d none of the above
Explanation:
because the answer is not one of the a,b,c,d
Answer:
C) both a and b
Explanation:
You're exploiting fish by catching them at a young age. A decline in fish catch can be a consequence of fish exploitation.
How important do you think it is for you personally to avoid coronavirus infection? EXPLAIN YOUR ANSWER PLS .
Answer:
I think it is extremely important to avoid personally getting the virus
Explanation:
I love visiting my grandparents, and while I have a huge chance of fighting it off, it could take my grandparents lives. As well as anybody else I meet. Its not about me. its about everyone.
Which of the following patterns in the fossil record would be an example of an organism evolving through punctuated equilibrium?
A. dorsal fins appearing, disappearing, and reappearing in species of ancient aquatic reptiles, mammals, and fish
B. a species of flower changing in shape, followed by a change in the beak shape in its preferred species of pollinator
C. the shell shape of a species of snail remaining unchanged for millennia until it changes to an entirely different shape
D, whale species gradually changing from land-dwelling mammals that walked on four legs to marine mammals without legs
Whale species gradually changing from land-dwelling mammals that walk on four legs to marine mammals without legs would be an example of an organism evolving through punctuated equilibrium. So, the correct option is (D).
What is Punctuated equilibrium?Punctuated equilibrium is defined as the theory that proposes that once a species appears in the fossil record, the population will be stable, showing little evolutionary change for most of its geological history, with little or no morphological change. The condition is called statis.
This balance is the idea that evolution is rapid rather than following the slow, but steady path Darwin suggested. Long periods of stagnation with little activity are interrupted by intermittent bursts of activity in the case of extinction or emergence of new species.
Thus, Whale species gradually changing from land-dwelling mammals that walk on four legs to marine mammals without legs would be an example of an organism evolving through punctuated equilibrium. So, the correct option is (D).
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What are the stages of meiosis in eukaryotic cells with realizing that there are two cell divisions involved?
Answer:
Meiosis can only occur in eukaryotic organisms. It is preceded by interphase, specifically the G phase of interphase. Both Meiosis I and II have the same number and arrangement of phases: prophase, metaphase, anaphase, and telophase. Both produce two daughter cells from each parent cell.
4. What at least five sources of error in this experiment and the calculations.
Answer:
systematic, instrumental, environmental, procedural, and human.
those are all different types of errors that could happen in an experiment.
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01:51:47
Which excerpt from "Good Country People" best exemplifies why Joy/Hulga is a traditional Southern gothic character?
Abel
One of her major triumphs was that her mother had not been able to turn her dust into Joy, but the greater one
was that she had been able to turn it herself into Hulga.
O Hulga had learned to tolerate Mrs. Freeman who saved her from taking walks with her mother
Joy, whose constant outrage had obliterated every expression from her face, would stare just a little to the side of
her, her eyes icy blue, with the look of someone who had achieved blindness by an act of will and means to keep
it.
O Joy would get up while her mother was eating, and before long, Mrs. Freeman would arrive at the back door.
Answer:
Submissive Obedience
Answer: the answer is “Joy, who’s constant outrage had obliterated.....” or C on edg 2021
Explanation: just took the test :))
Which of the following is an example of an organism providing energy to
a primary consumer?
А
Seaweed being eaten by a turtle
B
Shrimp being eaten by a codfish
C
Snake being decomposed by bacteria
Oak tree making food from sunlight
Answer:
Explanation:How many grams are in 5.4 moles of iron (III) sulfate, Fe2(SO4)3?⇔⇔∉↑·ПНПёПсжЫЫЫЁ
Explanation:
Seaweed being eaten by a turtle is an example of an organism providing energy to a primary consumer. Therefore, the correct option is A.
What is a seaweed?The seaweed is a primary producer that captures energy from the sun through photosynthesis and converts it into chemical energy stored in organic compounds. The turtle is a primary consumer that obtains energy by consuming the seaweed.
Option B is incorrect because both the shrimp and the codfish are consumers. Option C is incorrect because this is an example of decomposition, which is the breakdown of organic matter into simpler compounds by decomposers such as bacteria.
Option D is incorrect because the oak tree is a primary producer that captures energy from the sun through photosynthesis. Therefore, the correct option is A.
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Which atoms have a higher electronegativity?
What sugars can plants produce?
Answer:
glucose
fructose
Sucrose ( this is made with the combination of glucose and fructose)
Explanation:
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Fill in the blank with the correct word.
A substance that is produced by a plant that affects how it grows and develops is called a
.
Answer:
A substance that is produced by a plant that affects how it grows and develops is called a hormone.
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A substance that is produced by a plant that affects how it grows and develops is called a hormone.
What is a hormone?Hormones are your body's chemical messengers. They travel in your bloodstream to tissues or organs.
They work slowly, over time, and affect many different processes, including growth and development, metabolism, maintaining body temperature, and regulating mood and cognitive functions.
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How does energy transfer happen?
Ocean salinity varies from place to place due to differing conditions in the environment
-true
-false
Ocean salinity varies from place to place due to differing conditions in the environment is a true statement.
How ocean salinity varies?It is not evenly distributed, but it does change temporarily and spatially with the oceans and seas.
This variation is both horizontally and vertically distributed; horizontal distribution refers to salinity changes at the ocean's surface level and vertical distribution, to salinity changes as the ocean's depth.
Several variables influence ocean salinity. They are global warming, evaporation, rainfall, river water input, ocean currents, atmospheric pressure, and wind direction. Oceans and seas have a 35 average salinity.
Therefore, It is not evenly distributed, although it does change momentarily and spatially with the oceans and seas.
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What makes stars produce enrgy
Answer:
Stars produce energy from nuclear reactions
the reaction occurs when hydrogen and helium fuse toghther.
Explanation:
Answer:
Stars make energy through nuclear fusion
Explanation:
How much water would have to be displaced for the Lucia to float?
Where are chromosomes located during metaphase?
A
outside the cell membrane
B
on opposite sides of the cell
C
lined up along the center of the cell
D
spread around the edges of the cell
Answer:
C
Explanation:
In metaphase, the chromosomes are lined up along the center, or equatorial plate, of the cell and each sister chromatid faces opposite poles.
Which is an example of potential energy being transformed into kinetic energy?
Describe the difference between codominance and incomplete dominance. Give 1 example of each.
Which of the following is NOT part of the peripheral nervous system?
A. Parasympathetic system
OB. Spinal cord
O C. Somatic system
D. Sensory neurons
The correct answer is: B. spinal cord
The nervous system can be divided into two subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS). The spinal cord and the brain are part of the CNS, whereas the PNS consists of the nerves that radiate from the CNS to all parts of the body. The PNS includes all neurons that sense and transmit information to the CNS.
The CNS controls thinking processes, movements, and registers the sensations throughout our body. Moreover, the PNS acts to transmit information from the CNS to all parts of the body.
The PNS is in turn divided into two main parts:
1-The Autonomic nervous system (ANS), which regulates involuntary functions and glands. The parasympathetic nervous system is one division of the ANS that controls visceral organs such as glands.
2- Somatic nervous system (SNS), which regulates voluntary muscle movement and transmits information from eyes, ears, and skin to the CNS.
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Different cell organelles perform different functions. Which cells would
most likely have the largest vacuoles?
Which of the following is NOT a cartilage we find in the body?
Dense cartilage
Hyaline cartilage
Fibrocartilage
Elastie cartilage
What is the relationship between the bones, the heart, and the blood?
Answer:
blood is made in the marrow of the bone, and the heart pumps the blood throughout the body.
Explanation:
what is the S.I unit of speed , time
Answer:
Second!
Explanation:
speed and velocity are both measured using the same units.The S.I unit of distance and displacement is the meter. The S.I unit of time is the second. The S.I unit of speed and velocity is the ratio of two-the meter per second!
I hope it's helpful!
Answer:
metre per second
Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour.
Explanation:
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How does a weather front form?
Answer:
HERE IS YOUR ANSWER YW SORRY FOR ALL CAPS NEED TO FIX IT STILL
How would extra carbon dioxide
in a lake be removed?

Answer:
Carbon dioxide in a lake can be removed by chemical treatment using liming agents such as sodium carbonate or hydrated lime and quicklime. These liming agents react with carbon dioxide and reduces carbon dioxide and increases the pH and alkanity of the lake
Explanation:
Plants exchange carbon dioxide, water, and oxygen with their surrounding environment through openings in their called O A. leaves, stomata B. stems, sori OC leaves, xylem D. roots, guard cells