Which statement BEST represents a hypothesis
A: the birds ate 10 mg of food
B: the mice have gray colored fur
C: if rabbits eat twice there normal Amount of food, they will gain weight
D: the fish in the aquarium died becuase the water temperature was too high
Answer:
I think C. would be the correct answer but I'm not 100% sure if that's correct.
(If you think I'm wrong then DONT say C is the answer.)
hii wanna earn money on pàypal by solving easy math problem??
Which of these is a form of chemical weathering?
A. Oxidation
B. Exfoliation
C. Abrasion
D. Thermal expansion
Answer:
A. Oxidation
Explanation:
You are a botanist looking at the plant color in a new breed of Snapdragon. The two parent plants are Blue and Green and when you cross them you make F1 plants that are Cyan in color (a light aqua color). The ratio of offspring is as follows: There were 42 plants with Blue flowers (R1), 39 plants with Green flowers (R2) and 86 plants with Cyan flowers. Is the number of your progeny consistent with a single-gene incomplete dominance inheritance pattern
Answer:
Incomplete dominance is the inheritance pattern where the dominant allele did not mask the recessive allele completely and form a mix of both alleles. Here the inheritance is the incomplete inheritance. The ratio of F2 generation is 1:2:1.
Given:
R1R1 = 42
R2R2 = 39
R1R2 = 86
Total R1 alleles = 2*42+86 = 170
Total R2 alleles = 2*39+86 = 164
Total alleles = 334
Frequency of allele R1 = 170/334 = 0.51
Frequency of allele R2 = 164 / 334 = 0.49
Expected number of each phenotype:
Total population = 167
Blue = R1R1 = 0.51 * 0.51 * 167 = 43.44
Green = R2R2 = 0.49 * 0.49 * 167 = 40.10
Cyan = 2*R1*R2 = 2*0.51*0.49*167 = 83.46
Phenotype Observed(O) Expected (E) O-E (O-E)2 (O-E)2/E
Blue 42 43.44 -1.44 2.0736 0.0477
cyan 86 83.46 2.54 6.4516 0.0773
green 39 40.1 -1.1 1.2100 0.0302
Total 167 167 0.1552
Chi-square value = 0.155
Degrees of freedom = no. of phenotypes – 1
Df = 3-1 = 2
Critical value = 5.99
Chi-square value of 0.155 is less than the critical value of 5.99. So we accept the null hypothesis.
Which of the following does NOT provide evidence of the theory of evolution?
a. homologous structures
b. fossil records
c. biochemical evidence
d. analogous structures
e. embryology
Answer:
homologous structures
Analogous structures are different species that are similar in function but not in structure and which do not from a common ancestral feature.
What is evolution and examples?A person modifying their opinions about a social issue after living in a seprate part of the world for a period and meeting others who differ.
Natural selection in association hat indicates the economic or social success of people who are more powerful or Comptent than others.is
Thus, option "D" is correct, Analogous structures are different species that are similar in function.
To learn more about evolution click here:
https://brainly.com/question/13492988
explain how the nuclear atom differe from thr unifotm sphere model of the atom
Answer:
The Proton and neutron has the same mass because the number of protons can differ from the number of electrons which give off different charges and can result in a different weight and amount of charge whether its negative or positive
The two strands of the DNA are antiparallel to each other such that at the end of the DNA one strand will be 3' paired with a 5' end.
a. True
b. False
Answer:
True
Explanation:
Two strands of DNA are antiparallel to each other because they appear in opposite direction and are mirror image and they are read in 5' - 3' direction which also refers to the orientation of nucleotides of a single strand of DNA and the reading would start from the free phosphate and it will end at the hydroxyl group
What advantage does a reliable web page have over published textbooks and
encyclopedias?
A) It is easily updated with the most recent information.
B) All web pages are peer reviewed.
C)Anyone can publish information on a web page.
D) Textbooks and encyclopedias are always more accurate than web pages.
Answer:
A
Explanation:
because it is easily updated with recent information
How long ago did this take place?
Answer:
b over 500 years ago
Explanation:
According to the diagram how are the three components
of a nucleotide important to the structure of DNA?
Answer:
A nucleotide of DNA is made up of three parts: a nitrogenous base, a 5-carbon sugar, and a phosphate group. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine.
The phosphate group linked with deoxyribose sugar to make the framework for the nitrogenous bases. The phosphate group and sugar molecule make the DNA backbone and support it. These backbones hold nitrogenous bases and make a monomer of DNA. Nitrogenous bases make DNA stable and hold both backbones together. These bases also make DNA functional.
What types of regulations are designed to bring awareness to and reduce the amount of air pollution?
clean air acts
industry regulation acts
pollution for the people acts
water pollution controls
Answer:
clean air acts
Explanation:
Three students are arguing about the reason that an apple appears red. Student A claims that it is because an apple absorbs the color red and reflects all other colors away from it. Student B claims that it is because an apple absorbs every other color of light and only reflects red light away from Student C argues that the apple gives off its own rays of red light. With which student do you agree and why?
Answer:
Objects appear different colours because they absorb some colours (wavelengths) and reflected or transmit other colours. ... For example, a red shirt looks red because the dye molecules in the fabric have absorbed the wavelengths of light from the violet/blue end of the spectrum.
Explanation:
Given the size of the coquí, what is surprising about its call
Answer:
its the loud sound the males make at night.
Explanation:
the sound has two purposes the scream CO to repel males while KEE to find mates
1. Fill in the blanks
2. What is the full name of DNA
Answer:
DNA= dexyribonucleic acid
hope it helps
stay safe healthy and happy.How is mitosis different in plants and animals?
Answer:
The main difference is cell plate formation and how they form the daughter cells during cytokinesis. In plants, they lack centrosomes. A new cell plate will form between the daughter cells for the future cell wall. In animal cells the cell membrane will rather constrict to separates the parent cell into the daughter cells. Plants also do not undergo cell furrowing, unlike animals cells.
1) Define biodiversity in your own words:
2) Why is biodiversity important?
Answer:
Explanation:
1.) Biodiversity is variety in an ecosystem and the living things inside of it. It means all the different species and creatures that live on the planet.
2.) Biodiversity is important because it provides vital ecosystem functions such as soil fertilization, nutrient recycling, pest and disease regulation, erosion control, and crop and tree pollination. Each species ina n ecosystem has a role to play.
There is great diversity in the ways different species of microbes
obtain energy for metabolic functions, and
obtain carbon for building the macromolecules of life.
Fill in the chart to indicate how these characteristics are used to describe the nutritional
type or nutritional classification of organisms. (Refer also to Table 27.1 in Biology, 7th
edition.)
Answer:
please insert the chart or table 27.1
Plz help!
I well mark brainliest!!
Answer:
I think the answer is A.
Explanation:
I had the same exact test question and I put A so I hope this helps.
habitat loss in fragmentation definition
Two morphologically identical Drosophila populations live in Lower Nahal Oren, Mount Carmel, Israel. There are two slopes of a valley that face each other and drosophila live on both slopes (they share a common ancestor). The environment is very different even though they are very close. In the center of the valley is an area in which flies from each side have an opportunity to mate. (an aside: This is frowned upon by fly society buy these tiny Montagues and Capulets persist). Evaluate each scenario:
Answer:
There are two possible scenarios
Scenario 1) Genetic flow is acting on these populations
Scenario 2) The original population has recently diverged
Explanation:
Scenario 1:
These two populations of flies should probably express some phenotypic difference due to the environmental condition on each slope. Remember that the phenotype is the product of interaction between the genotype and the environment. However, the difference between populations would exist if they were isolated and separated by an ecological or biological barrier. The barrier would impede genetic flow, and each population would have its particular genetic charge and phenotype.
In the exposed situation, we know that each population inhabits a slope. And that the slopes differ in the environmental conditions. But in the center of the valley, these two populations get to meet and mate. The valley is acting as a corridor between both groups and allows the genetic flow to occur.
Let us remember that gene flow is an evolutive strength only if
there exists migration from one population to the other, and the allelic frequency in one generation is different from the allelic frequency in the next generation.Genetic flow acts homogenizing the allelic frequencies between the two populations, and it might introduce variability into the new one. For genetic flow to be possible, there needs not only the movement of the genes from one population to the other but also the reproduction process on the new population. Hence, it involves an interaction between the dispersion pattern and the reproductive system.
Individuals from both groups get to mate in the valley, leaving fertile offspring. The offspring, carrying genes from both populations, are included in one or the other group, where they will reproduce. In each population, the frequency of genes of the other group increase with time as the flies keep mating. Eventually, genetic flow homogenizes the variability between both populations, making them look similar.
Scenario Two:
It might be an early dispersion event in which the common ancestor of both populations used to inhabit the center of the valley. With time, and as the original population got bigger, dispersion took a significant role. Flies began moving into both slopes. Even though each area has different environmental conditions, there has not been enough time for these animals to adapt morphologically to each side, so they still look identical. Also, as it is an early event, these two new groups are not separated yet, so they have not developed biological barriers between them, and individuals can still mate in the center of the valley.
What is Climate Change?
Explain your answer.
What is Climate Change?
Climate change is a change in the usual weather found in a place.
How it helps us:
Studying the climate helps us predict how much rain the next winter might bring, or how far sea levels will rise due to warmer sea temperatures. ... We can also see which regions are most likely to be affected by extreme weather, or which wildlife species are threatened by climate change.
How it works:
As the earth's atmosphere heats up, it collects, retains, and drops more water, changing weather patterns and making wet areas wetter and dry areas drier. Higher temperatures worsen and increase the frequency of many types of disasters, including storms, floods, heat waves, and droughts.
How it affects us:
Human health is vulnerable to climate change. The changing environment is expected to cause more heat stress, an increase in waterborne diseases, poor air quality, and diseases transmitted by insects and rodents. Extreme weather events can compound many of these health threats.
which statement is true about the rates of cell divvision in eukaryotes
Answer:
More information needed
Explanation:
Your question seems to be multiple choice however the statements to choose from are not shown
A system that consists of tributaries, watersheds and divides is called
a. lake system
C.
river system
b. ocean system
d. pond system
Answer:
C.
river system
Explanation:
Question 4 Multiple Choice Worth 3 points)
(02.03 LC)
Which physical factor, related to the formation of severe weather, has to do with the amount of water vapor in the air?
O Humidity
O Pressure
O Temperature
O Wind
Question 5/Multiple Choira Worth 2 nointel
Previous Question
Question 1 (Answered)
0
how can you predict which way water moves across a cell membrane?
a) water will move from high to low concentration
b) there is no way to predict the movement of water
c) water will move from low to high concentration
Answer:
The answer is C.
Explanation:
Water will move from an area of lower solute concentration to an area of higher solute concentration.
A diet that is mainly based on unrefined whole grain, fruits, vegetables, other plant products, though may contain small amounts of animal-derived foods,
can be called all of these except for which?
Select one:
a. Prudent diet
b. Healthy diet
C. Plant-based diet
D.Western diet
Answer:
Healthy diet
Explanation:
all of those have vitamins and they provide us energy
Answer:
b. healthy diet
Explanation:
Because vegetables , fruits and other plant products are vitamins.
adaptation of nerve cell
Answer:
They have a long fiber so they can carry messages up and down the body over long distances. In a stimulated neuron, an electrical nerve impulse passes along the axon. The axon is insulated by a fatty sheath - the fatty sheath increases the speed of the nerve impulses along the neuron.
Explanation:
In the world of purple people eaters, one eye (E) and one horn (H) are dominant traits. Purple people eaters
can also have two eyes (e) and two horns (h), which are recessive traits.
Perform a dihybrid cross among a male who is heterozygous for both traits and a female
who is heterozygous for both traits. Use the results for your prediction below.
HOW MANY ONE-EYED TWO-HORNED PURPLE PEOPLE EATERS ARE THERE?
O 3
1
0
Ο Ο Ο
16
9
O4
12
the answer is 16 because its like greater then you now what am saying its the correct answer
During mammalian embryogenesis, the first differentiation event that occurs leads to a polarization of the outer cells of the 16-cell morula. This outer layer of cells forms the trophectoderm and the inner, apolar clump of cells become the inner cell mass. The inner cell mass will give rise to:
Answer:
the entire embryo
Explanation:
The trophectoderm refers to the polarized single cell layer that forms the wall of the blastocyst, thereby forming the first epithelium during embryogenesis. Moreover, the blastocyst is composed of 1-an inner cell mass (ICM) which will form all the tissues of the embryo's body, and 2-an outer layer composed of cells collectively called the trophoblast. The ICM of the blastocyst will form the embryoblast (which subsequently will give rise to the embryo itself) and the fetus, while the trophoblast will form all of the supporting tissues (i.e., amniotic sac, placenta, and umbilical cord). In humans, the blastocyst is the developmental stage of the embryo on day 5 after fertilization.
Doctor Purita told The New York Times that he would not give HGH to his professional athletes because he doesn’t “need the stigma and that kind of reputation.” What does he mean in this quote?
Answer:idont no the answer
Explanation: