Answer:
Basic unit of life is cells
Answer:
The Cell Theory Is a Biology Unifying Principle
Explanation:
According to the cell theory, all biological entities are made up of cells; cells are the basic unit of life, and all life originates from pre-existing life. The cell theory is now so well-established that it serves as one of biology's unifying principles.
Neurons in the visual cortex respond to which type of stimulus?
Answer:
luminance
Neurons in the visual cortex respond essentially to the variations in luminance occurring within their receptive fields, where each neuron fires maximally by acting as a filter for stimulus features such as orientation, motion, direction and velocity, with an appropriate combination of these properties
Explanation:
Neurons in the visual cortex respond to luminance stimulus. They respond selectively to various stimuli depending on the features.
What do you mean by Neurons?Neurons may be defined as the cells which are responsible for receiving sensory input from the external world and processed in the brain.
Neurons in the primary visual cortex respond to local edges or contours at a particular orientation, motion, direction, and stereoscopic depth.
Therefore, neurons in the visual cortex respond to luminance stimulus.
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Which argument is BEST supported by the information given?
A
The earthworm and lizard evolved at the same time because of the absence of legs and hair
B
The lizard and humans share a common ancestor because of the presence of a backbone and legs.
С
The trout and humans share a common ancestor because of the presence of a backbone.
D
Earthworms were the most recent to evolve because of the absence of the derived characteristics
The lizard and humans share a common ancestor because of the presence of a backbone and legs statement is true.
What is Evolution?Evolution refer to the change or variation in in the characteristics of organisms over several generations and this depends on the process of natural selection.
some Organisms evolved from the same ancestors and they share some similarities in characteristics like hair, legs.
Humans and lizards evolve from same ancestors of over 320 million years ago.
Therefore, The lizard and humans share a common ancestor because of the presence of a backbone and legs statement is true.
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Lophotrochozoan phyla have a lophophore, a specialized structure for _____.
Answer:
suspension feeding
Explanation:
hope this helps.
Which is not an impact on ecosystems during a drought?
A. Declines in surface water
B. Land subsidence
C. Increased organism population
D. Seawater intrusion
Answer:
c
it is because during drought there will be less water around us.so the no of animals decrease .
During cell polarization, what are the two resultant edges called?
Answer:
The leading and trailing edge
Explanation:
Cutting the front edge of each wave's half cycle using leading edge dimming. Trailing edge dimming, on the other hand, eliminates the second half of each wave's half cycle.
~
During cell polarization, the two resultant edges are called the leading edge and the trailing edge.
What do you mean by Cell polarization?Cell polarization may be defined as a phenomenon by which cytoskeletal arrangement, extra- and intracellular signals, and organelle and membrane reorganization occur due to maintaining the cell shape.
Leading-edge works on the front edge and separates the half-wave cycle, while the trailing edge works on the back edge and cuts the second half of the wave.
Therefore, during cell polarization, the two resultant edges are called the leading edge and the trailing edge.
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Match the image with its best description
Answer:
This seems like common sense considering there's no actual terms involved, here it is regardless:
1) D (Tectonic plate boundaries)
2) C (Convergent boundaries)
3) A (Transform boundaries)
4) B (Divergent boundaries)
Which of the following types of carbon fixation is least common for plants in arid locations? a. c3 b. c4 c. cam d. none of the above please select the best answer from the choices provided a b c d
Answer:
The answer will be:
A. C3
The processes of converting inorganic substances into organic substances are called carbon fixation. It can include C3 photosynthesis, C4 photosynthesis and CAM. C3 is least common in arid areas.
What is carbon fixation?Carbon fixation is the process, when photosynthetic bacteria form organic carbon from inorganic ones.
Carbon fixation can have three processes as follows:
C3: it is light independent process occurs in stroma it occurs in all plants but is less common in arid location plants.C4: it is found in plants of tropical areas.CAM: it occurs in plants present in arid areas.Thus, option a is correct.
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What is the only form of nitrogen that plants can absorb?.
The only nitrogen plants can absorb is nitrate. Nitrogen assimilation in plants. Plants absorb nitrogen from the soil in the form of nitrate (NO3−) and ammonium (NH4+). In aerobic soils where nitrification can occur, nitrate is usually the predominant form of available nitrogen that is absorbed.
hope this helps!
What is the vector for transmission of yellow fever?.
Answer:
It's a virus.
Mosquitoes are the vector for the yellow fever virus.
Spread through Mosquitos making mosquitoes the vector.
what do the two strands of DNA join together to form
Answer:
the two strands that join together are T-A the other two are G-C.
Explanation:
in dna these two strands pair together to make one
The table shows nine substances tested for biomolecules. Which substance contains protein and starch?
Answer:
soaked beans
Explanation:
iodine solution is used for testing for starch and it says its positive (+). Biuret solution tests for proteins and also says its positive. So basically you had to look at the columns and see which one had a + sign for both iodine and biuret. Both are present in soaked beans
what is considered as the amount of matter in an object?
A.solid
B.liquid
C.volume
D.matter
What is considered as the amount of matter in an object?
The correct answer is Mass.
~ The right answer isn't included in the given choices. Perhaps the answer should be none of the above? Or letter D. is supposed to be Mass? Mass is known as the amount or measure of matter in an object.
Volume on the other hand is the measure of space that an object/matter occupies.
The fundamental problem of not having enough resources to meet unlimited desires
is called…
A. Underutilization
B. Factors of Production
C. Scarcity
D.Shortage
Answer:
c. Scarcity is the right answer
If a fish is able to breathe outside of water but does not reproduce, that trait (1 point)
O will be inherited by other fish.
O is a disadvantageous mutation.
O does not impact evolution.
O will be acquired by other fish.
Answer:
does not compact evelotion.
Explanation:
Where are the muscles that allow the fingers to bend or straighten?
A.In the forearm
B. In the upper arm
C. In the hand
Can somebody help me me !!!
Severe flooding in an area caused a population of minnows to become split into two separate ponds. Prior to the separation, the male minnows all had a moderate number of spots.
Following the separation, the first pond was filled with larger fish that fed on minnows, so male minnows with fewer spots were better able to avoid detection by predators. The minnows in the second pond, however, had very few predators, and female minnows in this pond preferred to mate with males that had the most spots.
After many generations, the two minnow populations evolved into different species and could no longer interbreed.
Fish Species Average # of Spots
Original Species four to six
New Species 1 zero to two
New Species 2 eight to ten
Which of the following best describes why the two minnow populations evolved into separate species?
A.
Natural selection acted upon the traits of the minnows in the first pond only, causing these fish to evolve into a new species with new adaptations.
B.
Natural selection acted upon the traits of the minnows in the second pond only, causing these fish to evolve into a new species with new adaptations.
C.
The same selective pressures were acting upon both populations, leading to a decrease in genetic variation and the formation of two new species.
D.
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species.
show your work. This is a science question .
Since the formation of the San Andreas Fault system 25-30 million years ago, the juxtaposition of the Pacific and North American plates has formed many faults in California that accommodate lateral motion between the plates.
hope this helps
The FBI agents are called "Hoovers," a reference to legendary top-G-man be
Edgar Hoover, but also a clever reference to a vacuum cleaner brand. There
are numerous shots of vacuums being used to gather hair, dead skin cells,
and nails. Why are these materials being collected?
To extract DNA and use DNA fingerprinting to identify who was at
the scene of a crime.
0 To clean up the crime scene because it was really dirty.
To view the specimen under a microscope to determine who was at
the scene of a crime.
O To extract proteins and use protein fingerprinting to identify who was
at the scene of a crime.
We can confirm that the materials being collected at the crime scene are used to extract DNA and use DNA fingerprinting to identify who was at the scene of the crime.
How does DNA help identify suspects?This is due to the fact that the DNA of each individual is unique. Meaning that as long as the FBI has a database to compare it to, they can quickly identify whose DNA it is and confirm their presence at the crime scene.
Therefore, we can confirm that materials being collected at the crime scene are used to extract DNA and use DNA fingerprinting to identify who was at the scene of the crime.
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How does the shape of a protein relate to its function? Refer to specific details about this case and sickle cell anemia.
Answer: A protein's specific shape determines its function.
Explanation: If the three-dimensional structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected.
Go to the Model tab at the bottom of the simulation, and select the Star-Planet orbit. Decrease the mass of the Star to the minimum possible amount, and begin the simulation. What happened? Why do you think this happened?
Answer: The orbiting body left the orbit. The gravitational attraction between the two objects was too weak for a stable orbit to form Explanation:Its right!!
Answer: The orbiting body left the orbit. The gravitational attraction between the two objects was too weak for a stable orbit to form.
Explanation:
Humans use more fresh water for ________ than for any other purpose.
Answer:
hello.
The answer is “irrigating crops”.
Answer:
Agriculture
Explanation:
Humans use more freshwater for irrigating crops than for any other purpose.
For which of these reasons is the word expedite a verb?
O A. It can easily be pictured.
O B. It ends in -ite.
O C. It can be broken down into three parts.
O D. It has no antonyms.
Help
Answer:
answer is d
Explanation:
I just guest that hope it's correct
Answer: It ends in -ite.
6. Blood type is determined by three alleles, A, B, and O. Use the
punnett square below to answer questions a through c.
a. What is the probability of an offspring with type A blood?
b. What is the probability of an offspring with type O blood?
c. What are the genotypes and phenotypes of the parents?
Answer:
a. AO
b. OO
c. AO and BO
The diffusion of water molecules across a semipermeable
membrane and down a concentration gradient is known as
Answer:
Osmosis is the diffusion of water molecules across a semipermeable membrane from an area of lower concentration solution (i.e., higher concentration of water) to an area of higher concentration solution (i.e., lower concentration of water). Water moves into and out of cells by osmosis.
What kind of reaction is used to release glucose units from glycogen?
Answer:
phosphorolysis
Explanation:
The enzyme glycogen phosphorylase catalyzes a reaction in
glycogen breakdown.
Glycogenesis is the reaction is used to release glucose units from glycogen.
What is end prouct of glycogen breakdown?Glucose phosphate-1 and glycogen residue are the end products.
In cytosol glycogen breakdown is carried out by two enzymes, glycogen phosphates ae the linear.
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If two organisms are in the same class, they must also be in the same
Answer:
yes
Explanation:
if they have similar structure they probably related
Can someone help me please?
Explanation:
the first one and the last one is transverse
The most abundant high-energy compound in cells is.
Answer:
Adenosine triphosphate
Explanation:
what physical transformations occurred to allow for the fully aquatic life modern whales have today?
Answer:
Over time whale's descendants spent more and more time in the water and their bodies became adapted for swimming. Their front legs became flippers. A thick layer of fat called blubber replaced their fur coats to keep them warm and streamlined.Explanation:
The respiratory system is lined with a tissue layer known as the mucous membrane. We discussed how this layer helps to alter the incoming air in three important, beneficial ways. Explain the three ways the mucous membranes alter the incoming air and the benefit of each of these alterations
Warming, add moisture and trap depris are the three ways the mucous membranes alter the incoming air.
Role of mucous in breathingNasal mucous membranes are lined with small blood vessels that help to warm as well as humidify the air you breathe. They are also lined with cilia which is a tiny hair-like structures that help to trap the debris that you breathe in during inhalation.
So we can conclude that warming, add moisture and trap depris are the three ways the mucous membranes alter the incoming air.
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