Answer:
Silent mutation: Some mutations that change DNA bases do not have any effect on the sequence of amino acids in the protein. These mutations are called silent mutations and they do not affect the structure or function of the protein because there is no effect on the amino acid sequence.
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Answer:
I believe it is b
please tell my if I'm right
On the Bahamian island of Andros, mosquitofish populations live in various, now-isolated, freshwater ponds that were once united. Currently, some predator-rich ponds have mosquitofish that can swim in short, fast bursts; other predator-poor ponds have mosquitofish that can swim continuously for a long time. When placed together in the same body of water, the two kinds of female mosquitofish exhibit exclusive breeding preferences. Which type of reproductive isolation operates to keep the mosquitofish isolated, even when fish from different ponds are reunited in the same body of water
Answer:
The correct answer is - Behavioral isolation.
Explanation:
In the question, it is given that the mosquitofish of different habitat shows different behavior as per the availability of predators in the particular habitat. For instance, some mosquitofish can swim continuously for a long time in fewer predators area whereas predator-rich ponds have mosquitofish that can swim in short, fast bursts.
It is evident that they diverged from common species that isolated in different regions, their behavior got changed according to the presence of predators. Thus, the isolation is here, behavioral isolation.
In humans blood type A and B are equally dominant (codominant). Both types are dominant to type O. Aman with type AB blood marries a woman with type O blood, give the genotype and phenotype of all possible offsprings
Answer:
The correct answer would be -
Genotype: IAIO or IBIO
Phenotype: A Blood or B Blood
Explanation:
Blood group A and blood group B both are dominant over the blood group O, however, both A and B are codominant if present together and form the blood group AB.
The blood group of Aman is AB and If he marries the female with O blood group then possible blood group in offspring would be as follows:
gametes: Aman = IA and IB
woman = IO IO
then cross between:
IA IB
IO IAIO IBIO
IO IAIO IBIO
the genotype of this cross would be 50% chances of IAIO and 50% chances of IBIO and phenotype would be either Type A or type B.
How does a genetic mutation occur?
Answer:
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.
Explanation:
Study the processes that makes cells work
Answer:
One cell divides into two in a process called mitosis. Mitosis produces two genetically identical “daughter” cells from a single parent cell. Another type of cell division, meiosis, creates four daughter cells that are genetically distinct from one another and from the original parent cell. Only a few special cells can perform meiosis: those that will become eggs in females and sperm in males
Explanation:
Help please!!!!!
What is true of dermal tissue?
a. It forms the outer layer of the plant
b. It includes structures such as the root hairs
c. Its primary function is protection
d. All of the above
Answer: D. All of the above
Dermal tissues also called epidermis, make up the outer layer of all plant organs (Roots, leaves e.t.c). They have three main tissue types which are ground tissue, vascular, and dermal, all plant organs contain these three tissues.
If you dissected an owl pellet and found several of the skulls shown, what would you conclude is the preferred prey of this owl?
bat
gopher
mouse
shrew
Answer:
The answer is C. mouse
Explanation:
Answer:
it is c or mouse
Explanation:
Are the eyelid muscles voluntary or involuntary?
(PLESE HELP) If you exert a force of 500 N to walk 4 m up a flight of stairs in 5 s, how much power do you
use? (INCLUDE THE UNIT for power!)
Answer:
LETSS GOOOOOOOOOO
Explanation:
Answer:
Solution given:
Force [F]=500N
distance [d]=4m
time [t]=5s
Now
power =F× velocity
=F×d/t=500×4/5=400 watt
Mitochondrial DNA is passed directly from father to child
true or false
Sperm cells swim through liquid. Explain how a sperm cell is adapted to reduce friction as it swims.
Answer:
Long tail and narrow head.
Explanation:
A sperm cell is adapted to reduce friction as it swims by having long head, narrow tail and enzymes. These features of sperm provides ability to swim straight to the egg cell. Long tail helps the sperm cell to swim towards the egg cell, narrow head of sperm cell make the sperm cell for faster swimming towards the egg cell and enzymes present in the head of the sperm helps break through the egg cell membrane so we can say that the long tail and narrow head of sperm cells helps in faster swimming.
Which of the following would NOT increase the rate at which something dissolves? *
A. increase temperature
B. decrease temperature
C. crush solute
D. stir the solution
Answer:
B
Explanation: Decreasing the temperature will not make the increase rate at which something dissolves quicker it would only make it go slower.
What's the answer please??????????
Answer:
species IV is the one most closely related
Explanation:
act gca ccc
act gca ccg
its just one letter off
There are more different types of species found in a population than there are in a community.
True
False
Answer:
true
Explanation:
What is the proper way to introduce a motion using correct parliamentary procedure ?
Answer:
um i think , that it's i move
Answer:
Step 1: A member of a board who wants to make a motion must first be recognized by the chair of the meeting. ...
Step 2: A member seconds the motion. ...
Step 3: The chair states the motion: “It is moved and seconded to ... ” At this point the motion now belongs to the group (not the maker or the “seconder”).
Explanation:
Step 1: A member of a board who wants to make a motion must first be recognized by the chair of the meeting. ...
Step 2: A member seconds the motion. ...
Step 3: The chair states the motion: “It is moved and seconded to ... ” At this point the motion now belongs to the group (not the maker or the “seconder”).
Which of the following are located in the dermis of the skin?
A. melanocytes
B. sebaceous glands
C. keratin
D. melanin
Answer:
B
Explanation:
Humans vary in their ability to taste the bitter chemical compound phenylthiocarbamide ( PTC ). The taster phenotype is dominant to the non-taster phenotype. Researchers tested the PTC taster phenotype of individuals from an isolated population. In the sample, 780 individuals were able to taste PTC and 70 individuals were not able to taste PTC .Assuming the population is in Hardy-Weinberg equilibrium, what is the frequency of the non-taster allele
Answer:
The frequency of the recessive allele, t is f(t) = q = 0.29.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Two atoms have the same number of protons but different numbers of neutrons. These atoms are:
A. electrons
B. isotopes
C. molecules
D. radiation
tysm!
Answer:
Isotopes
Explanation:
If two atoms have different numbers of protons, they are different elements. However, if two atoms have the same number of protons, but different numbers of neutrons we refer to them as isotopes. Two terms we use to identify nuclides (isotopes) are atomic number and mass number.
What mass of methane gas (CH4) is required in order to follow the Law
of Conservation of Mass?
Answer:
2.4g
Explanation:
i got the same question and got it right
During cell division the ONLY cell organelle that breaks down and reforms is the
Answer:
kinetochore
Explanation:
The kinetochore breaks down and the sister chromatids separate. The nucleus reforms and the cell divides. The kinetochore becomes attached to the mitotic spindle.
A group of puppies have different fur colors. This is an example of
organism diversity
ecosystem diversity
genetic diversity
species diversity
genetic diversity
Explanation:
If a dog starts to put its paw down on a sharp stone, the tough skin skin protects underlying structures from damage. Additionally, touch receptors in the skin send sensory signals to the spinal cord. The spinal cord then sends a signal to the muscles to lift the paw rather than continuing to press down. In this scenario, the dog may experience discomfort but avoid injury.
What two body systems are being used to protect the structures beneath the dog's skin and signal the muscles to lift the paw?
A.
integumentary and nervous systems
B.
circulatory and nervous systems
C.
circulatory and lymphatic systems
D.
integumentary and lymphatic systems
PLZZ HELP QUICKKK
The two body systems being used to protect the structures beneath the dog's skin and signal the muscles to lift the paw are the integumentary and nervous systems, which are in option A.
What is the organ system?The dog's response to the sharp stone involves the coordinated action of two body systems: the integumentary system and the nervous system. The integumentary system consists of the skin and its associated structures, including hair, nails, and glands. The skin acts as a protective barrier between the external environment and the underlying tissues, and it has specialized structures, such as tough, keratinized layers in the paw pads, that can withstand pressure and protect the sensitive tissues underneath.
Hence, the two body systems being used to protect the structures beneath the dog's skin and signal the muscles to lift the paw are the integumentary and nervous systems, which are in option A.
Learn more about the organ system here.
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Which of the following correctly matches a property of an organic molecule with how that property helps the organic molecule function in living organisms?
A. Carbohydrates lower the activation energy of certain reactions. This allows metabolic processes to take place at a rate that can sustain life.
B. Proteins contain nucleotides that encode genetic material. This allows proteins to accurately pass genetic information from one cell to another.
C. Nucleic acids contain multiple carbon-hydrogen bonds. This allows nucleic acids to provide energy for living organisms by breaking these bonds.
D. Lipids are insoluble in water. This allows lipids that make up biological membranes to regulate the entry and exit of many substances.
No dam links
Answer:
C. Lipids are insoluble in water. This allows lipids that make up biological membranes to regulate the entry and exit of many substances.
Explanation:
explain how thyroxine production is an example of homeostasis
Explanation:
The production and release of thyroid hormones, thyroxine and triiodothyronine, is controlled by a feedback loop system that involves the hypothalamus in the brain and the pituitary and thyroid glands. ... This system allows the body to maintain a constant level of thyroid hormones in the body.
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A: the leopard population will increase
B: the hawk population will increase
C: the impala population will decrease
D: the scorpion population will decrease
please answer
C: the impala population will decrease
Answer:
I remember doing this in 7th grade its A. The leopard population will increase because they are eating the baboon tu survive the baboons are decreasing while leopards are increasing
What process creates stalagmites? Group of answer choices Rivers carrying rocks down a mountain Windblown sand shaping large rocks Minerals being deposited as water drips Glaciers pushing large rocks
Answer:
Minerals being deposited as water drips.
Explanation:
Stalagmites grow on the floor of a cave. The process that creates them starts with the filtration of rainwater drops through the rock picking gases and minerals, amongst these ones is calcite. When the drops containing these elements pass through the rock and are in contact with the air, a chemical reaction happens. As a consequence, the calcite precipitate on the floor of the cave. This process has to happen many times to form a stalagmite.
Nutrients are needed for: a.cells to produce proteins and other bio chemicals b. Animals to build shells and skeletons c. Plants to grow d. All of these
Answer:
Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes. There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water
Explanation:
Which of the statements is correct regarding water potential in plants
1. Water moves from a low water potential to a high water potential
2. Water moves from a. high water potential to a low water potential
3. Water potential in the leaves of trees is higher than the water potential in the roots of trees
Multiple Choice
Which of the following is a good source of DNA, useful in determining identity in a forensic case
medical records
O teeth and dental records
O laundered clothing
O x-rays of the corpse
Do all please thank you. If not some is ok.
Answer:
1. Increases
2. Decreases
3. Increases
4. Decreases
5. Increases
6. Increases
Explanation:
Raising air temperature increases temperature of our body while on the other hand, if the air temperature decreases the temperature of our body also decreases because high air temperature heats up our skin surface and low air temperature cools down our skin surface which ultimately increases or decreases the internal body temperature. Adding clothing increases body temperature due to capturing of heat produced by our body. Sweating cools down our body temperature because the water takes the internal heat with itself to the outside. In shivering, the body produced heat so the body temperature increases. Exercising also produces heat inside our body which increases the body temperature.