Answers
Explanation:
I think the answer should be no.C
Related Questions
1.) Why does menstruation begin?
2.) How long does the menstrual cycle usually last?
Answers
Answer:
1.) Why does menstruation begin?
A.) Period happens because of changes in hormones in the body.
2.) How long does the menstrual cycle usually last?
A.) the menstrual cycle lasts 21 to 35 days while bleeding between 2 to 7 days
-TheUnknownScientist
The sea cools down faster than the land.
A. True
B. False
Answers
Answer:
false the land cools faster
SURVIV.IO CODE
5GRV
NOWWW
Answers
Answer:
ight im in
Explanation:
write it in your own words
Why is it important to know there are good and bad bacteria?
Answers
All members of the Eukarya domain have which of the following characteristics?
Have a nucleus
Are multicellular
Are heterotrophic
Reproduce sexually
Answers
Answer:
A. Have a nucleus.
Explanation:
I hope this helps.
SLO-4.2. Within all tissues in the body, there are stores of undifferentiated cells that can become any specialized type of cell in that tissue for the purpose of growth and healing. Today, Regenerative Medicine is trying to employ these cells to replace tissues that have been destroyed by disease and trauma, such as spinal cord injuries. What are these cells
Answers
Answer:
These cells are stem cells.
Explanation:
Stem cells have not specialized to be in a specific tissue and have a particular function yet. They are the cells that give all the different cell types that our body has. In other words, they can become any cell type that the body needs. We call them pluripotent cells because they have the potential of becoming any specialized cell.
Scientists use stem cells in tissue or organ regeneration due to the pluripotential that they have.
What does each daughter cell inherit during binary fission?
A) half the chromosomes of the original cell
B) a unique variation of the parent cell’s primary DNA
C) twice as many chromosomes as the original cell
D) an identical copy of the parent cell’s primary DNA
Answers
Answer:
an identical copy of the parent cell’s primary DNA
Explanation:
In this form of cell division, a cell replicates its DNA, increases in size, and divides into two daughter cells. Each daughter cell receives one copy of the replicated parental DNA.
During binary fission (d), daughter cells receive an exact copy of the parent cell's main DNA.
What is DNA exactly?Definition. Deoxyribonucleic acid, commonly known as DNA, is indeed the molecule that contains the genetic information necessary for an organism's growth or operation. The structure of DNA consists of a double helix, which is made up of two linked threads that loop around one another to form a twisted ladder.
Who created the DNA?Many people think that the 1950s saw the discovery of DNA by English physicist Francis Crick & American biologist James Watson. This isn't in fact the case. Rather, Swiss chemist Miescher made the first official discovery of DNA in the late 1860s.
To learn more about: DNA
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A plasmid contains a multiple cloning site inside the coding region of the lacZgene and also contains an ampicillin resistance gene at a separate locus. When cells are transformed with a successfully recombinant plasmid containing a piece of DNA cloned into the multiple cloning site, what color will the colonies be when grown on an agar plate containing ampicillin and X-gal
Answers
Answer:
The correct option is white.
Explanation:
As the options are not given, the options are found online and are as follows;
(a.) green (b.) white (c.) colonies will not grow (d.) blue (e.) clear
Out of this, white is the true option because in recombinant plasmid lac Z gene is disturbed and cannot produce beta galactosidase enzyme and there is no hydrolysis of x gal and no blue so recombinant plasmid gives white colonies)
In a few months, you receive a brief note from the breeder that he checked the four offspring and three have the purple trait and one has the white trait. Since only four offspring were produced, there are not necessarily enough offspring to observe the ratio you predicted. What is the probability of observing three purple and one white offspring: If the purple parent is Pp
Answers
Complete question:
1) Inspired by Gregor Mendel, you visit a local greenhouse to see what a pea plant looks like in person. You spot a plant in the corner and immediately notice that it exhibits the purple trait of the flower color character. This character is controlled by one gene with two alleles, the dominant purple P allele, and the recessive white p allele. Identify what you know for certain based on your observation. Check all that apply.
You know the genotype of the plant. This plant has at least one copy of the P allele.This plant must be heterozygous with respect to the flower color gene.You know the phenotype of the plant.2) In another corner of the greenhouse, you find another pea plant. This plant, however, exhibits the white trait of the flower color character. The greenhouse plant breeder approaches you and mentions that he plans to cross-fertilize the two plants that you have seen. He offers to let you know how the offspring turn out. Without realizing it, the breeder is actually conducting a
dihybrid cross testcross monohybrid cross3) If you were able to examine hundreds of offspring from this cross, what ratio of purple flowers to white flowers would you observe:
If the purple parent is PP ---------If the purple parent is Pp ----------4) In a few months, you receive a brief note from the breeder that he checked the four offspring and three have the purple trait and one has the white trait. Since only four offspring were produced, there are not necessarily enough offspring to observe the ratio you predicted. What is the probability of observing three purple and one white offspring:
If the purple parent is Pp? ----------If the purple parent is PP? ----------5) Based on the four offspring observed, you --------- (can/ cannot) know for certain whether the purple parent is Pp or PP.
Answer:
1)
This plant has at least one copy of the P allele. Because the plant is purple and the P allele is the one that codifies for this color. You know the phenotype of the plant. You can see that the plant has purple flowers, so you know its phenotype regarding flower color.2) A test cross
3)
If the purple parent is PP → 1:0 (100% heterozygous purple flowers, Pp)If the purple parent is Pp → 1:1 (50% Purple Pp, and 50% white pp)4)
If the purple parent is Pp? 3/4 = 75% purple and 1/4 = 25% whiteIf the purple parent is PP? 4/4 = 1 = 100% purple and 0 white5) Based on the four offspring observed, you CAN know for certain that the purple parent is Pp.
Explanation:
Due to technical problems, you will find the complete question, the answer, and the explanation in the attached files.
If a plant cell and its surroundings are isotonic)
there is no net movement of water into the cell:
the cell becomes
Answers
Answer:
Flaccid
Explanation:
The cell wall provides no advantages when a plant cell is immersed in a hypertonic solution. As the plant cell loses water, its volume shrinks.
See the Punnett square above. What are the chances these parents will have offspring with a homo-zygous recessive trait?
2 in 4 (50%)
1 in 4 (25%)
O in 4 (0%)
4 in 4 (100%)
Answers
Charles Darwin suggested that Africa is the birthplace of the earliest hominin species because... Group of answer choices he found hominin fossils in South Africa while traveling on the Beagle. genetic comparisons linked African primates and living humans. there was no known fossil record of hominins in Asia at the time. of the anatomical similarity of humans and African apes.
Answers
Answer:
Option B
Explanation:
In the book The Descent of Man published in 1871, Charles Darwin mentioned that the two recent most ancestor of present day human being live in Africa. These two recent ancestors of human beings are—chimpanzees and gorillas
Hence, option B is correct
if the birth rate doesnt change but the death rate goes down, what happpens to population
Answers
If this happens, the population will slowly increase
Darwin observed that finches’ _______ were specialized according to their unique environments.
Answers
Answer:
beaks
Explanation:
How did the results of Meselson and Stahl's experiment confirm that
DNA replication is semi-conservative? Describe the results in terms of
how replication occurs.
Answers
Answer: Meselson & Stahl reasoned that these experiments showed that DNA replication was semi-conservative: the DNA strands separate and each makes a copy of itself, so that each daughter molecule comprises one "old" and one "new" strand. The semi-conservative model, in which each strand of DNA serves as a template to make a new, complementary strand, seemed most likely based on DNA's structure. ... From the patterns of DNA labeling they saw, Meselson and Stahl confirmed that DNA is replicated semi-conservatively.
Explanation:
Tom has compared three skin creams and found that only one causes a rash. Tom is in the
stage of the scientific method.
O experimenting
O hypothesizing
O predicting
O evaluating
Answers
The answer should be, evaluating.
Explanation:
Hypothesizing and predicting goes before any experimentation, which crossed out the first answer since Tom has done the actual experiment.
Leaving evaluating as the only choice.
Hopefully this helped!
The structure composed of a sheet of simple squamous epithelial cells that's folded onto itself to form a double layer is a
Answers
Answer:
This question lacks options, the options are;
A. parietal layer.
B. serous membrane.
C. nuclear membrane.
D. mucous membrane.
The answer is B
Explanation:
The serous membrane is a covering membrane found in living systems. The serous membrane covers the surfaces of certain structures in the body such as heart, lungs etc. where they secrete lubricants that reduce friction during movement.
The structure of the serous membrane is composed of a sheet of simple squamous epithelial cells (secretes the lubricants) that folds onto itself to form a double layer. The layers are joined by a connective tissue.
Sugar gliders and Northern flying squirrels are mammals that have many morphological similarities despite being genetically different.
a. True
b. False
Answers
Chemostat culture with protozoa Tetrahymena thermophila protozoa have a minimum doubling time of 6.5 hours when grown using bacteria as the limiting substrate. The yield of protozoal biomass is 0.33 g per g of bacteria and the substrate constant is 12 mg l1 . The protozoa are cultured at steady state in a chemostat using a feed stream containing 10 g l1 of nonviable bacteria. (a) What is the maximum dilution rate for operation of the chemostat
Answers
Answer:
The correct answer is - 3.3 g/L.
Explanation:
It is known that if endogenous metabolism is not important then,
µnet = µmax = 0.693/doubling time.
Given:
doubling time = 6.5 hr, therefore,
µmax = 0.693/6.5 = 0.1/h
Formula:
First, maximum dilution rate Dmax,
Dmax = µmax*[S0]/{Ks + [S0]}.........(1)
Steady-state cell concentration, X
X = Yx/s{[S0] - KsD/(meumax - D)..........(2)
Solution:
Yx/s = 0.33 g/g-substrate;
Ks = 12 x 10-3 g/L; [S0] = 10g/L,
puting value in (1)
Dmax = 0.1 * 10 / (12 x 10-3 + 10)
= 0.1/h.
Now it is given that operating D is 1/2 of Dmax, therefore,
D in our case will be = 0.05/h
concentration of protozoa cells from equation (2).
Therefore, X = 0.33*{10 - 12 x 10-3 * 0.05/(0.1 - 0.05)} = 3.3 g/L.
The mutation rates in Drosophila will most
likely increase after exposure to
a. Ultraviolet radiation
b. Yeast growing on a nutrient medium
C. Oxygen gas
d. Extremely cold temperatures
Answers
Answer: A. Ultraviolet Radiation
The mutation rates in drosophila will most likely increase after exposure to ultraviolet radiation.
Explanation:
Mutation are spontaneous random sudden changes that occur in the genetic makeup of an organism's. they are changes in the genetic sequence, and they are main cause of diversity among organism
Hope this helped!!!!
Air pressure decreases as
a.
velocity increases.
b.
elevation increases.
c.
acceleration decreases.
d.
gravity increases.
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
velocity increase pressure decreases
Answer:
b. elevation increases
hope this helps you☺️☺️
why water is essential for all living things
Answers
Answer: Living organisms need water to survive. Organisms require water to break down food molecules or generate energy during the respiration process. Water also helps many organisms regulate metabolism and dissolves compounds going into or out of the body.
in the illustration above, the snake is a....
Answers
Answer:
I think is third level consumer
What is the correct order of carbon dioxide as it leaves the respiratory tract?
Answers
Answer:
please give me brainlist and follow
Explanation:
Carbon dioxide (CO2) is transferred from returning blood back into gaseous form in the lungs and exhaled through the lower respiratory tract and then the upper, to complete the process of breathing.
Which type of electromagnetic wave is the most similar in wavelength to visible light?
A. Radio Waves
B. Gamma radiation
C. Ultraviolet light (UV radiation)
D. Sound waves
Answers
Answer:
uv
Explanation:
im pretty sure
if bread is exposed to air at room temperature, fungi inevitably colonize it. what does this say about the presence of fungal spores in our environment?
Answers
Answer:
This supports the fact that fungal spores exists in the atmosphere or air
Explanation:
Fungi is a kingdom of living organisms that have distinguished characteristics from plants and animals. They propagate themselves using structures called SPORES. Some of these spores are able to withstand extreme or adverse unfavorable conditions and germinate when conditions are favorable. Most fungal spores are air-borne i.e are dispersed by air.
According to the information in this question, Fungal spores will colonize bread that is exposed to air at room temperature. This implies that fungal spores are present everywhere in the atmosphere looking for opportunities to germinate. The bread is a place conducive for fungal growth due to the presence of nutrients and a favorable temperature.
I need to know what is the answer for number 6 and 7 and that’s all
Answers
Answer:
you have it right
Explanation:
the boundary between two air masses IS CALLED A FRONT
A STATIONARY FRONT causes light rain over several days
 Pressure increases with depth toward the center of the Earth. In which layer would you expect the pressure to be the greatest?
Answers
Answer:
The pressure would be the greatest in the Outer core.
Answer:
hi
Explanation:
the presure would be gresest
Which graph is an exponential growth model?
A.
B.
C.
Answers
Answer:
The answer is A,
Explanation:
Just took the test.
A DSM diagnosis can
O tell us very clearly how a person will behave in the future
O provide a detailed description of the person's unique characteristics
O be used as a general label to understand a person's problem
tell us the factors that led to the particular disorder