Answer:
A negative feedback loop occurs in biology when the product of a reaction leads to a decrease in that reaction. In this way, a negative feedback loop brings a system closer to a target of stability or homeostasis
Explanation:
Negative feedback occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances
What is Darwin's theory called?
Describe the basic ideas behind his theory.
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Darwinism, theory of the evolutionary mechanism propounded by Charles Darwin as an explanation of organic change. It denotes Darwin's specific view that evolution is driven mainly by natural selection.
What is needed for natural selection to occur? select all that apply.
How to treat Scalp acne?
Answer:
1. Treat acne on the head with benzoyl peroxide
2. Use salicylic acid to clear pores
3. Use AHA to treat acne on the head
4. Cleanse the scalp with sulfur
5. Use a retinoid to apply to acne spots
Explanation:
Put the following in order of complexity from least to most complex and explain your answers
virus, eukaryote, prokaryote.
Answer:
The main components of prokaryotic cells that we'll discuss are the cell membrane and cell wall, the propulsion mechanism, ribosomes, and DNA. Bacteria have a cell wall that surrounds the cell membrane. Eukaryotic cells, on the other hand, have only a cell
Explanation:
hope this helps I don't know Its correct answer
In adolescent years, a person's sense of identity
A. Is still being developed.
B. has already been fully developed.
C. changes on a regular basis
D. is determined by his or her culture.
E. Other:
One gene in the human genome may be expressed at a much higher level than another. Can differences in types of cis elements present account for this
Answer:
No, CREs usually don't account for differences in gene expression levels.
Explanation:
Cis-regulatory elements (CREs) are non-coding DNA regions that regulate adjacent gene transcription. They usually do it by binding to transcription factors. They are in charge of influencing the rate of which transcription occurs, and less with how much a gene is expressed. On the other hand, trans-regulatory elements are DNA sequences that encode for upstream regulators that can modify or regulate gene expression levels.
Therefore, cis elements are not really in charge of expression levels, mostly transcription rates of single genes, rather. Trans elements are more involved in expression levels.
a neuron that synapses in the adrenal medulla is a ___________ neuron, and releases the neurotransmitter ___________.
Answer:
preganglionic; acetylcholine (ACh)
Explanation:
A(n) _____ is a type of cancer-causing gene that promotes cancer by activating cell division at an inappropriate time or place.
The effects of this type of severe weather can include tress blown over by high winds, flooding caused by heavy rains, and damage to coastal areas caused by storm waves. What type of severe weather does this describe?
A. tornado
B. thunderstorm
C. blizzard
D. hurricane
Answer:
thunderstorm
Explanation:
4. What would have the most biodiversity, a rainforest with lots of different
animals and plants or a crop of green beans?
Answer:
A rainforest with lots of different animals and plants.
Explanation:
bioDIVERSITY
Diversity: a range of different things.
what type of ions carry the impulse across the synapse from one neuron to the next ?
It's the sodium ion.
When a neural impulse is fired in both neurons, it is always cause by an excited electron in one neuron moving to the other neuron to destabilize the balance of ions trying to keep them at equilibrium. This action either depolarizes or hyper-polarizes the membrane. If it does, then sodium ions--the key deficient ones--can flow into that region of low charge and maintain that state of low charge, keeping the cell membrane stable.
3. The organelle that releases large amounts of energy to assist active transport in cells ?
Answer:
The main function of the mitochondria is to provide energy for cellular activity by the process of aerobic respiration.
Explanation:
glucose is broken down in the cell's cytoplasm to form pyruvic acid, which is transported into the mitochondrion
a movement away from the midline of the body is termed
Answer:
A movement of a body part away from the midline, either of the body as a whole or that of the hand or foot, is termed abduction (L., to carry away). A movement of the body part back toward the midline (i.e., to the anatomical position) is known as adduction.
Explanation:
Mark me brainly please.
Abduction is a movement away from the body's midline. Abduction is the term for a bodily part's lateral movement away from the body's midline.
Thus, body parts are divided or spread apart in this process. Abduction of the arms, for instance, occurs when you raise your arms from a resting posture and spread them out to the sides. Similar to this, you are practicing leg abduction when you stretch your legs apart.
Adduction, or the movement in the direction of the midline, is the reverse of this action. Important terminology like abduction and adduction are used to describe movement in respect to the body's midline in anatomical and physiological descriptions.
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For the cross AaBb X Aabb in which capital letters represent dominant alleles and lower case letters represent recessive alleles, what fraction of the offspring are expected to have the recessive phenotype for the trait determined by gene A and the dominant phenotype for the trait determined by gene B?
Answer:
2/16 or 1/8 (simplified)
Explanation:
Check the image attached
the ventral rami of spinal nerves ________ form the major nerve plexuses.
Answer:
The blank is:
C1 through T1 and L1 through S4
Hope this Helps
How do organisms remain highly organized in spite of the tendency toward entropy
Answer:Energy stored by organisms in organic molecules
Explanation:
The movement of water dissolved minerals , and food and other organic molecules in a plant is called
(LO 1.6) Assume a person just drank a glucose solution and is sitting quietly.
Injecting insulin would cause compared to when there was no insulin
injected.
m
Answer:
more glucose to move into cells in muscles
Explanation:
Which statement is supported by the atomic theory? A. Atoms combine to make all the substances on earth
Answer:
this is not true.
B) atoms of all substances are identical in all respects..
Dalton's theory said - all atoms of one substance are identical. Atoms of different elements differ.
Explanation:
The main sugar that photosynthesis produces is help me please ;(
Answer:
The answer is Glucose.
Hope that helps. x
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III
Answer:
The answer is I ,II and III
Polysaccharides, triglycerides, and proteins are similar in that they?
a) all contain nitrogen in other monomer building blocks
b) are decomposed into their subunits by dehydration reactions
c) are synthesized from subunits by dehydration reactions
d) are synthesized from monomers by the process of hydrolysis
Answer:
d
Explanation:
po ang tamang sagon po
Is scientific law a proven concept? Explain why or why not.
In sexual reproduction, will an offspring show a recessive trait if just one of its parents has recessive alleles for that trait? Explain your answer.
Answer:
No, they will not
Explanation:
In this question, we assume that the parents have genotypes of rr and RR (I use "r" out of convenience). If we cross both of these parents, it is impossible for any of the offspring to be rr like the one parent. They would all be heterozygous. If the other parent had a single recessive allele, then it would be possible.
Hope this helps!
In an experiment that compares a combination mental-physical practice condition to an all-mental practice condition, an all-physical practice condition, and a no practice condition, the typical results show that participants in the combination mental-physical practice condition would learn the skill
a. as well as or better than those in the all-physical practice condition.
b. about as well as those in the all-mental practice condition.
c. about as well as those in the no practice condition.
d. The results would depend on the combination of the amount of mental and physical practice.
The combination mental-physical practice condition is effective to learn the skill as well as or better than those in the all-physical practice condition. Mental-physical practice enhances both cognitive and physical skills.
Mental practice, also known as mental/skill rehearsal, refers to the cognitive (i.e., thinking) rehearsal of a given skill prior to its execution.
It has been shown that mental practice can be effective for enhancing the performance of both cognitive and physical skills.
The mental-physical practice has been shown to be helpful to enhance self-motivation, confidence, and reduce feelings of anxiety.
Mental practices always must be employed to supplement physical practices instead of replacing such physical exercises.
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If a deletion occurs in a gene that encodes DNA polymerase I and no functional DNA polymerase I is produced, what will be the MOST likely consequence of this mutation
which division of the autonomic nervous system is responsible for conserving energy and replenishing nutrient stores?
Answer:
parasympathetic division
Explanation:
The parasympathetic system functions during rest of the somatic system and is responsible for anabolism and restoration of energy stores.
Write the function of nucleus in the cells of organism
Answer:
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.
Explanation:
HOPE IT HELPS...............the organ of smell and taste are closely related discuss?
Answer:
They are closely related because the bose and mouth are connexted through the same airway. You taste and smell at the same time.
What is the potential energy of a 10-kg book that is placed on a shelf that is 2.5 meters high?
The potential energy of the book is 245 J.
SOLUTION:We are given the following:
mass m = 10 kgheight above a reference point h = 2.5 mUse the formula for potential energy. ( g = 9.8 m/s² )
[tex] \qquad {\boxed{\sf P.E._{grav} = m \times g \times h}} [/tex]
[tex] \sf P.E._{grav} = (10\:kg) \times (9.8\: \frac{m}{s^2}) \times (2.5\:m) [/tex][tex] \sf P.E._{grav} = (10\:kg) \times (24.5\: \frac{m^2}{s^2}) [/tex][tex] \sf P.E._{grav} = {\boxed{\sf {245\:J}}} [/tex]Therefore, the potential energy of the book is 245 J.
HOPE IT HELPS!