WRONG ANSWERS ONLY!!! What is coastal runoff and what does it affect
Answer:
The sky.
(Purposely wrong.)
Show a competition between organisms in this food chain below
HELP ASAP PLZ!!!!
Answer:
8tvitcrixuzu3duecitvurvih igb
-2 In a pasture ecosystem a large portion of the biomass is represented
pasture vegetation compared to animals that feed on these grasses.
illustrated by such a pasture ecosystem is called alan...
A food chain.
B food web.
с ecological pyramid.
D energy flow.
a
Explanation:
im not really sure about the answer i chosed but maybe yes
What is the most common stimulant drug used today?
A.Heroin
B.Cocaine
C.Caffeine
D.Alcohol
Answer:
B. cocaine
Explanation:
A scientist found an igneous rock that contained pyroxene and plagioclase. What would best help the scientist to correctly classify the rock?
A. Identifying the rock as either intrusive or extrusive
B. Observing the color of the rock based on minerals
C. Knowing the additional minerals found in the rock
D. Determining the amount of pyroxene in the rock
I NEED HELP ON BOTH ANSWER AS QUICKLY AS POSSIBLE!!
Bc
Answer:
What do you need help with?
PLEASSEEE HELP ASAP THANKS
Answer:
1,3 and 5.............
What conclusion can you draw from the results shown?
A)The amount of the drug was decreased to achieve the same effect.
B) The mouse is in a state of tolerance.
C) The mouse is suffering from withdrawal symptoms.
D) The amount of drug injected was the same throughout the 7 weeks.
Answer and I will give you brainiliest
Answer:
B) The mouse is in a state of tolerance.
Helppppppppppppppppppppppppp
Answer:
agriculture
Explanation:
Slash-and-burn agriculture, method of cultivation in which forests are burned and cleared for planting. Slash-and-burn agriculture is often used by tropical-forest root-crop farmers in various parts of the world and by dry-rice cultivators of the forested hill country of Southeast Asia
The first stage of the cell cycle during which the cell matures and prepares to divide and copies
its DNA; The stage the cell stays in the most?
The cell multiplies and creates a copy of its DNA during interphase. In the mitotic (M) phase, the cell divides into two new cells by dividing its cytoplasm and DNA into two sets.
What is the main role of interphase stage of cell cycle?A cell consumes the bulk of its time in what is known as interphase, where it creates, duplicates its chromosomes, and acquires available to split. The cell then moves interphase, goes direct mitosis, and completes dividing.
The cell multiplies and the nuclear DNA is duplicated during interphase. The mitotic phase immediately follows interphase.
Chromosomes that have been duplicated are separated and distributed across daughter nuclei during the mitotic phase. Usually, the cytoplasm is divided as well, producing two daughter cells.
Therefore, The first stage and the stage the cell stays in most is Interphase.
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The phase of mitosis that is characterized by the formation of chromatids is
___
Answer:
The phase of mitosis where chromatids are formed is Metaphase
In a separate study, 68 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One collecting site was in Sonora, Mexico. The other three were in Chihuahua, Mexico. Dr. Nachman and colleagues observed no significant differences in the color of the rocks in the four locations sampled. However, the dark-colored mice from the three Chihuahua locations were slightly darker than the dark-colored mice from the Sonora population. The entire Mc1r gene was sequenced in all 68 of the mice collected. The mutations responsible for the dark fur color in the Sonora mice were absent from the three different populations of Chihuahua mice. No Mc1r mutations were associated with dark fur color in the Chihuahua populations. These findings suggest that adaptive dark coloration has occurred at least twice in the rock pocket mouse and that these similar phenotypic changes have different genetic bases.
Complete question:
In a separate study, 68 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One collecting site was in Sonora, Mexico. The other three were in Chihuahua, Mexico. Dr. Nachman and colleagues observed no significant differences in the color of the rocks in the four locations sampled. However, the dark-colored mice from the three Chihuahua locations were slightly darker than the dark-colored mice from the Sonora population. The entire Mc1r gene was sequenced in all 68 of the mice collected. The mutations responsible for the dark fur color in the Sonora mice were absent from the three different populations of Chihuahua mice. No Mc1r mutations were associated with dark fur color in the Chihuahua populations. These findings suggest that adaptive dark coloration has occurred at least twice in the rock pocket mouse and that these similar phenotypic changes have different genetic bases.
How does this study support the concept that natural selection is not random?
Answer:
The study supports the concept that natural selection is not random because in different areas with the same or very similar environmental characteristics, the same phenotype was produced by different types of mutations.
Explanation:
All of the sampled animals are inhabiting dark substrate. Probably animals needed to camouflage to survive. Natural selection must have driven them to produce dark color, similar to the substrate color. So animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. The environmental condition is favoring the same phenotype.
Pls someone help its a very easy question also don’t worry about the dot I accidentally did that
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Answer:
Light
Explanation:
Why would a good light bulb produce these if its a good light bulb?
You have been studying two Hippogriff traits as a senior graduation project at Hogwarts (because you are magical), beak size (big beaks, B, are dominant to small beaks, b) and feather color (brown feathers, F, are dominant to white feathers, f). You mate two brown, big-beaked Hippogriffs and obtain the following results: 15 of the baby Griffs are brown and big-beaked; 4 of the baby Griffs are white are big-beaked; and 1 of the baby Griffs is white and small-beaked. What are the genotypes of the parent Hippogriffs
Answer:
BbFf is the genotype of parent Hippogriffs
Explanation:
Given -
Big beaks, B, are dominant to small beaks, b.
Brown feathers, F, are dominant to white feathers, f.
Two brown, big-beaked Hippogriffs are mated to produce 15 brown and big-beaked; 4 white and big-beaked; and 1 white and small-beaked offspring
The genotype of parents is BbFf
A cluster of cases of legionellosis have occurred in your neighborhood. People with the illness have cough, fever, shortness of breath, chest pain and sometimes diarrhea. The illness is caused by the bacterium Legionella pneumophila, a facultative intracellular parasite that survives in certain ameba. The organism has an absolute requirement for L-cysteine. Typically, the organism is grown on buffered charcoal yeast extract (BCYE) agar. In some labs, samples containing suspected L. pneumophila are cultured on traditional BCYE medium as well as BCYE medium lacking L-cysteine. How would L. pneumohila be identified in this situation
Answer:
The correct answer is - comparing the presence of an essential component of the L. pneumophila that is cysteine.
Explanation:
As we know that L-cysteine is essential for the organism L. pneumophila to grow its colonies. The identification is easy in this situation by comparing the two cultured on the traditional BCYE medium and BCYE medicum without L-cysteine.
Colonies that grow on traditional BYCE medium are likely L. pneumophila as they required L-cysteine but not on BYCE medium lacking cysteine.
Which two events take place during human sexual reproduction?
A. Fragmentation
B. Spore formation
C. Fertilization
D. Gamete formation
Answer and Explanation:
C...
Gamete formation and fertilization takes place during human reproduction. Therefore, option (C) and (D) are correct.
What is sexual reproduction in humans?Human fertilisation produces a human child via human reproduction, which is reproduction. It usually entails activity between a sexually mature male and female person.
Copulation, or sexual intercourse, involves the insertion of the erect into the vagina and the ejection of spermatozoa from the seminal fluid (semen) into the female genital tract. The ovum in the outer portion of the fallopian tube is subsequently fertilised by spermatozoa as they travel from the vagina via the uterus to the tube.
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When you flex your knee, where are the fulcrum and the load? Where is the muscle that provides the effort located?
Explanation:
the fulcrum is the knee joint
the load is probably the radius and ulna with the muscle on it
while the effort could be tendons and the muscle on the femur
How do diet and weigh loss companies use bias to sell their products
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Which animal will use a hollowed-out tree stump as a home?
O A) a beaver
OB) a bear
OC) an eagle
OD) a rabbit
HELPPPOPPPPPPPPPpppppp
Answer:
SeA URCHINS (SOOOOOOOOOOOOOOO SURE ABOUT MY ANSWER) dont blame me if you get it wrong because i said im sure
Explanation:
Oompah’s with type O blood receive a tax break. ophine oompah has type a blood, but he wants a wife that will give him children with type o. what blood type should he request on his dating survey? what must Opine’s blood type be in order to produce offspring with type O blood?
Answer:
He should request type O on his dating survey.
Opine's blood type must be AO to have a higher probability of producing O offsprings.
Explanation:
O blood type is recessive so, when it is paired with another blood type like B or A, these would be dominant, giving B and A blood, respectively.
O blood type results are possible thanks to OO genotypes.
If the man's blood type is A, to have a higher chance of producing OO offsprings, his blood should be AO. The other possibility is that he has AA blood, which will result in a low probability of OO offsprings.
As regards the mother, her blood type should be OO.
We can see this more clearly in Punnet Square.
║ A ║O
O║AO║OO
O║AO║OO
There is a 50% of probability of having O offsprings with AO and OO.
║ A ║A
O║AO║AO
O║AO║AO
With AA and OO, the probability is 0%
║ A ║O
A║AA║AO
O║AO║OO
With both parents having AO, blood the probability of having a OO offspring is 25%.
In conclusion, the higher chances of producing a OO offspring is if the parents are AO and OO.
Plastics are made from oil/petroleum and have both benefits for society and harmful effects on the environment
True
False
Answer: It is True I just took the test
Explanation:
Platinum is a catalyst humans use in fuel cell. Although for green energy humans use some bacteria that releases enzymes such as hydrogenase to perform functions as platinum in fuel cell. This is an example of
a. Biofilm
b. Biosensing
c. Biomimicry
Answer:
B
Explanation:
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PLEASE HELP!!!!
Explain what causes a muscle to go into rigor mortis. Your answer should include the circumstances which cause it, as well as why those circumstances cause the effect (what is happening in the muscle at a molecular level which causes the stiffness).
Explanation:
Rigor mortis develops as the body's energy source (adenosine triphosphate [ATP]) is depleted. Muscle fibers require ATP for relaxation; once depleted, actin and myosin proteins remain complexed, resulting in stiffening of the muscles..
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Eye color in a particular strain of fly is influenced by one gene with two alleles: a dominant allele that results in red eyes and a recessive allele that results in sepia eyes. A red-eyed female from a true-breeding population is mated with a sepia-eyed male. The Fl offspring are all red-eyed. The Fl flies are allowed to interbreed, producing the following in the F2 generation.
Females: 40 red eyes; 13 sepia eyes
Males: 39 red eyes; 11 sepia eyes
Which of the following best describes the likely mode of inheritance for the eye-color gene?
a. The eye-color gene is likely autosomal because males and females have similar phenotype ratios.
b. The eye-color gene is likely autosomal because more females have sepia eyes than males do.
c. The eye-color gene is likely sex-linked because the males and females have similar phenotype ratios.
d. The eye-color gene is likely sex-linked because the males and females display both phenotypes.
Answer:
The correct option is a. The eye-color gene is likely autosomal because males and females have similar phenotype ratios.
Explanation:
Available data:
Eye color is influenced by a diallelic gene R dominant allele results in red eyesr recessive allele results in sepia eyesCross: true-breeding red-eyed female with a sepia-eyed maleF1: 100% red-eyed.F2: Females: 40 red eyes; 13 sepia eyesMales: 39 red eyes; 11 sepia eyes
77% of the total progeny has red eyes and 23% has sepia eyes.
Among females, 75% is red-eyed, and 25% is sepia-eyed
Among males, 78% is red-eyed, and 22% is sepia-eyed.
The general phenotypic ratio is 3:1
If the eye-color gene was sex-linked, the phenotypic ratios would be different. There would be a higher proportion of red-eyed females than red-eyed males. Females would only express red eyes, while males would express red and sepia eyes. This is
Cross: X⁺X⁻ x X⁺Y (Note: The symbol + represents the allele R
Phenotype: red-eyed both and the symbol - the allele r)
Gametes) X⁺ X⁻ X⁺ Y
Punnett square) X⁺ X⁻
X⁺ X⁺X⁺ X⁺X⁻
Y X⁺Y X⁻Y
F2) 3/4 of the whole progeny would be red-eyed
1/4 of the whole progeny would be sepia-eyed
BUT
Females: 100% red-eyed
Males: 50% red-eyed and 50% sepia-eyed
These proportions are not coincident with the exposed real proportions
So,
c. The eye-color gene is likely sex-linked because the males and females have similar phenotype ratios.
If this gene was sex-linked, Males and females would not have similar phenotype ratios. This is FALSE.
d. The eye-color gene is likely sex-linked because the males and females display both phenotypes.
If this gene was sex-linked, Males would display both phenotypes, but females would only be red-eyed. This is also FALSE.
According to this, we can assume that this is an autosomal gene. If this is true, then
Cross: Rr XX x Rr XY
Gametes) RX, RX, rX, rX
RX, RY, rX, rY
Punnett square:
RX RX rX rX
RX RRXX RRXX RrXX RrXX
rX RrXX RrXX rrXX rrXX
RY RRXY RRXY RrXY RrXY
rY RrXY RrXY rrXY rrXY
F2) From the whole progeny
12/16 = 3/4 = 75% would be red-eyed 4/16 = 1/4 = 25% would be sepia-eyedPhenotypic ratio 3:1
Among females
6/8 = 3/4 = 75% would be red-eyed, R-XX 2/8 = 1/4 = 25% would be sepia-eyed, rrXXPhenotypic ratio 3:1
Among males
6/8 = 3/4 = 75% would be red-eyed, R-XY 2/8 = 1/4 = 25% would be sepia-eyed, rrXYPhenotypic ratio 3:1
The phenotypic ratio in all cases are 3:1.
b. The eye-color gene is likely autosomal because more females have sepia eyes than males do.
Both males and females exhibit sepia eyes in equal proportions. This is FALSE
a. The eye-color gene is likely autosomal because males and females have similar phenotype ratios.
Males and females do have similar phenotype proportions of red eyes and sepia eyes. This is TRUE
how does the process of translation convert information from a dna code to an rna code?
a. from a DNA code to an RNA code
b. from an amino acids code to a nucleic acid code
c. from an RNA code to a DNA code
d. from a nucleic acid code to an amino acid code
Answer:B
Explanation:
The nitrogen bases in DNA code for the sequence of amino acids that make up a protein
Answer:
its B
Explanation:
Which term indicates that a single gene has two or more alleles present in a population?
A. Genotype
B. Point mutation
C. Polymorphism
D. Pleiotrophy
Genetic polymorphism is the existence of multiple alleles of a single gene.
What are genes?Genes are regions of DNA which code for a particular protein or any other gene product.
Genes can exists as a single copy or as multiple copies.
Alleles are alternate forms of a particular gene.
A single gene that has two or more alleles present in a population is known as genetic polymorphism.
Therefore, multiple alleles of a single gene is known as genetic polymorphism.
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The image above depicts a triangular piece of land, ACD, with two roads, segments BE and CF, cutting across the property. The owner wishes to add a fence along segment BC. The entire triangular piece of land is an isosceles triangle in which sides AC and CD both equal 9 miles. Segment CF represents the perpendicular bisector of the 13 mile-long base. If triangles BKC and FKE, formed from the intersection of the two roads, are congruent and segment AE is equal to side CD, what is the length of segment BC?
Select one:
A. 2.5 miles
B. 3.0 miles
C. 3.5 miles
D. 4.0 miles
Answer:
A. 2.5 miles
Explanation:
I completed it n got 100 lol
What structures have parasite worms lost? What structures/organs are expanded?
Explanation:
Something that is lacking, is a circulatory system. Instead of a typical circulatory system flatworms exchange oxygen with the air outside through diffusion. This is the process by which gases will pass through a membrane from an area of high concentration to an area of low concentration.