Answer:
When we gain insight into animal behavior, we are in a stronger position to understand vexing conservation problems, such as how to save endangered species, assess environmental quality, design nature preserves, and evaluate the importance of human-related threats to survival in otherwise fit animals.
Explanation:
An elk herd is observed over many generations. Most of the full-grown bull elk have antlers of nearly the same size, although a few have antlers that are significantly larger or smaller than this average size. The average antler size remains constant over the generations. Which of the following effects probably accounts for this situation?
a. directional selection
b. stabilizing selection
c. diversifying selection
d. bottleneck effect
e. Genetic Drift
Answer:
b
Explanation:
which statement regarding normal microbiota of the human respiratory system is false?
Given what we know about the respiratory system, we can confirm that the statement regarding normal microbiota of the human respiratory system that is false is option B " The upper respiratory tract is mostly sterile".
As far as the human respiratory tract and system, it was previously believed that the upper tract contained bacteria while the lower respiratory tract was sterile. Recently, however, this has been proven to be false. Bacteria are in fact present in the entire respiratory tract even in healthy individuals. For this reason, options a, c, and d are true, and the only false option present is b.
This question was answered based on the complete question found online that states:
Which statement regarding normal microbiota of the human respiratory system is FALSE?
a) The trachea normally may contain a few bacteria.
b) The upper respiratory tract is mostly sterile.
c) The ciliary escalator in the bronchial tubes keeps the lower respiratory tract nearly sterile.
d) Potentially pathogenic microorganisms are present in non-sterile portions of the respiratory tract but usually do not cause disease.
To learn more visit:
https://brainly.com/question/8401861?referrer=searchResults
What happens to the neurotransmitter once an action potential is propagated on the muscle sarcolemma
Answer:
broken down by enzyme
Explanation:
It is immediately broken down by an enzyme. The opening of sodium channels is essential for the initiation of an action potential in the muscle cell membrane
C1 and C2 vertebrae are also known as:
A. axis and radius
B. atlas and axis
C. atlas and radial
D. sacrum and coccyx
Answer:
B
Explanation:
#platolivesmatter
Headlands are formed through wave deposition
True or False
Answer: True
Explanation: The movement of water and sediment down a beach caused by waves coming in to shore at an angle. A beach formed by longshore drift that projects like a finger out into the water. A sea arch is formed through wave erosion. Headlands are formed by through wave deposition.
A population of 200 mice contains 168 brown mice. Brown is dominant to gray. How much of the population would be h e t e r o z y g o u s?
A. 32%
B. 84%
C. 48%
D. 16%
The answer is B, yo welcome
The heterozygous population in the population of 200 mice is 84%. The correct option is B.
What is heterozygous?Heterozygous means having two types of alleles for the same type of gene. These alleles show two types of characters for a single gene. An example is a person having an allele of brown and black hair.
The population is 200 of which 168 mice are brown
By the Hardy–Weinberg (HW) equilibrium
q² (bb) = (200 - 168) /200 = 32 / 200 = 0.16
q: √ 0.16 = 0.4
p = 1 - q = 1 - 0.4 = 0.6
p² (BB) = 0.6 x 0.6 = 0.36
Thus, the correct option is B. 84% regarding the heterozygous population.
Learn more about heterozygous, here:
https://brainly.com/question/20113812
#SPJ5
PLEASE HELP ME IM TIMED!
Answer:
#3 Proteins
Explanation:
"There are four classes of macromolecules (polysaccharides or carbohydrates, triglycerides or lipids, polypeptides or proteins, and nucleic acids such as DNA & RNA). Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON)."
in which structure would you expect to find a chloroplast?
Answer:
in plant cells and eukaryotic algae
Explanation:
a neuron that synapses in the adrenal medulla is a ___________ neuron, and releases the neurotransmitter ___________.
Answer:
preganglionic; acetylcholine (ACh)
Explanation:
why do heart cells have a higher percentage of mitochondria than liver and pituitary gland cells?
Answer:
This is because the heart requires large amounts of energy in order to pump blood to the rest of the body. The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.
The heart cells have a higher percentage of mitochondria than liver and pituitary gland cells because the heart requires large amounts of energy in order to pump blood to the rest of the body. The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.
What is the role of mitochondria in producing energy?The role of Mitochondria in producing energy are in charge of producing energy as ATP. The heart muscle has the highest energetical requirements. Several mitochondria compose these muscle cells because too much energy is needed to pump blood constantly.
Mitochondria are known as the one of the biggest organelles in the cell. They are semi-autonomous organelles surrounded by a double membrane that reproduce by binary fission and contain their own DNA, RNA, and ribosomes. Mitochondria are in charge of aerobic cell respiration, the process by which cells use organic compounds and turn them into energy.
Therefore, The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.
Learn more about mitochondria on:
https://brainly.com/question/10688306
#SPJ5
a
. Protons have a charge and an electron has a charge and they are to each other.
a) positive, negative, attracted
c) positive, neutral, attracted
b) positive, neutral, repellant
d) negative, positive, attracted
Answer:
Your answer is (A), positive, negative, attracted.
I hope this helped at all.
From your experiments, you conclude that the mosquitofish are already
consuming too much oxygen from the pond. Any added goldfish are
suffocating.
You have estimated that the Elodea currently in your pond produce 22.8 mL of
oxygen per hour.
A2 gram goldfish will need 6.2 mL oxygen per hour. A small 0.5 gram
mosquitofish will need 2.2 mL of oxygen per hour.
Determine how many mosquitofish and goldfish the pond can support.
Answer:
You can have 2 goldfish and 4 mosquitofish as the most balanced answer.
Explanation:
How did scientists prove that the food is transported through the phloem
Answer:
When a aphid is killing at the act of feeding then the body is carefull cut away but the proscis still inserted into the phloem then the food slowly exuded form cut end of the proboscis in the form of drops. These drops contain sugar and amino acids which means food is transported through phloem in plant.
how are unicellular and multicellular organisms the same
Answer:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast.
Explanation:
True or false?:
A small earthquake, called a foreshock, can occur seconds to weeks before a large
earthquake.
Answer:
false
Explanation:
aftershock, a smaller earthquake that occurs after a previous large earthquake, in the same area of the main shock.
Answer:
The answer is Actually True!
Explanation:
Sometimes, clusters of small earthquakes called foreshock sequences come in the days or weeks before a large earthquake. Less often, seismologists have observed a process called nucleation, where the rate of slip along a fault ramps up gradually before an earthquake. Hope this helps!!!
Why do cells need to use active transport? Give one example of how cells use active transport.
Why do scientisits use light rays to represent light rays
Why did you leave me when I needed you the most it hurts me
Lol jk
points for yall hehe
Answer:
I need to pee and in tired of this school
Answer:
I'm not worth it
Explanation:
I am not the person who can heal when you're hurt or in pain.
6. Critical Thinking
and Contrasting How is the
structure of chromosomes in
eukaryotes different from the
structure of chromosomes in
prokaryotes?
freshwater fish excrete nitrogenous wastes as _____.
list down at least 5 kitchen tools and utensils.identify it's material (10)pts
Answer:
Chef's Knife. I'm not just talking about any old chef's knife, I mean a good-quality one. ...Mixing Bowls. Mixing bowls are like your kitchen's hands. ...Cutting Boards. A kitchen is not complete without cutting boards. ...Wooden Spoon & Spatula. ...Measuring Cups and Spoons.How does melanoma affect the functions of the skin?
How does jaundice affect the functions of the skin?
Answer:
Melanoma is a type of skin cancer that develops in certain skin cells called melanocytes. These are the cells that make the pigment (melanin) that colors your skin. When exposed to UV radiation, such as sunlight, the melanocytes make more pigment, causing the skin to darken or tan. Melanoma starts in cells in the skin called melanocytes. These cells are in the deep layer of the epidermis between the layer of basal cells.
Jaundice causes the skin and the whites of the eyes to turn yellow. The higher the bilirubin level, the yellower the skin. Severe jaundice usually also causes itching and bile. Bile is fluid secreted by the liver.
Within the cell, vacuoles can be thought
of as which of the following?
Answer:
B. warehouses
Explanation:
i just paid attention in class. Is that a good enough explanation?
In the experiment by Nirenberg and Matthaei described in the animation, why does it make biological sense that the U2 oligonucleotide showed such poor ability to bind to ribosomes and tRNA charged with phenylalanine
We have that for the Question "In the experiment by Nirenberg and Matthaei described in the animation, why does it make biological sense that the U2 oligonucleotide showed such poor ability to bind to ribosomes and tRNA charged with phenylalanine"
Answer:
This is because, the genetic code could not involve a two-base codon because such a system would not provide enough unique codons to cover all 20 amino acids.
For more information on this visit
https://brainly.com/question/17756498
the group of blood disorders in which blood oxygen levels are inadequate to support normal metabolism is called
Answer:
anemia
Explanation:
the level of red blood cells in the body is lower than normal, which means that the body does not have enough oxygen :)
Photosynthesis is a process in which _______ energy is converted to _______ energy.
A.
light; electrical
B.
heat; chemical
C.
light; chemical
D.
chemical; light
Answer:
C is the answer i think
light,chemical
Answer:
I'm gonna say C is the answer
Explanation:
because the sunlight goes in the plant and comes out as oxygen
A muscle __________ (which is actually one long muscle cell) has hundreds of nuclei along its length to speed up the chemical processes that must occur before it can contract.
Have you done back on the grammar trail ? If so please tell me the code for this code!!
Answer:
The code for which code?
Explanation:
Please Specify
why is bromophenol blue added to the individual dna samples?
Answer:
It allows the observer to view how far the DNA samples travel.
Explanation:
It was an answer on a test I just got back.
A B C or D Helpppppppppppppppppppppppp
Answer:
A
Explanation:
Answer:
It's letter C this is the answer