It occurs when there is active absorption of water by roots and transpiration is low i.e. moist and humid conditions. Therefore, guttation generally occurs in the early morning because transpiration is less at that time but water is actively absorbed by the roots.
What are three ways in which bacteria obtain food
Answer:
The three ways by which bacteria obtain food are photosynthesis, chemosynthesis, and symbiosis.
Explanation:
Normal blood clotting requires an adequate intake of vitamin K. Vitamin K is needed by the liver for
synthesis of prothrombin and other factors.
O a.
False
b. True
Clear my choice
The MN blood group in humans is under the control of a pair of co-dominant alleles, M (we will call the frequency of M, p) and N (we will call the frequency of N, q). In a group of 556 individuals, the following numbers of individuals are found for each of the genotypes:
167 MM
280 MN
109 NN
a) What is the frequency of each allele? p= q=
b) What is the value of the Chi-square statistic test to find if in this particular case the genotypic frequencies conform to the Hardy-Weinberg distribution.
Chi square value =
c) What is the probability associated with you chi square statistic calculated above? Please complete the blanks below with the corresponding symbol, < OR > than the critical value, your conclusion with respect to the null hypothesis of Hardy Weinberg equilibrium, Retain or Reject.
P value __ than 0.05
Conclusion ___ the null hypothesis of HW equilibrium
Answer:
a) f(M) = p = 0.55
f(N) = q = 0.45
b) X² = 12.12
c) P₀.₀₅ = 5.991
d) P₀.₀₅ < X²
e) Reject the null hypothesis of HW equilibrium
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Mycobacterium tuberculosis (Mtb) is a bacterial pathogen that can cause skin infections as well as pneumonia. Mtb is often phagocytosed by immune cells called macrophages that normally destroy bacterial pathogens, but Mtb is somehow able to prevent the maturation of phagosomes into phagolysosomes, and to live and replicate inside these organelles. Which of the following differences would you expect contribute to the survival of a bacterium within an Mtb-containing phagosome, compared to a phagolysosome? (select two answers)
Answer:
It mututates
Explanation:
It changes it form thus becomes resistant to phagocytes
Can you help me with this please?
hey ,What is biological community answer it .Good night
Answer:
Community, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Explanation:
hope this helps you pls mark as brainliest
Answer:
It's a group of various species in a common place.
For example: a forest of trees and undergrowth plants, lived in by animals and rooted in soil including bacteria and fungi, would make a biological community.
I hope this Helped!
Which type of seedless plant has a complex leaf arrangement off a vein?
a. java moss
b. club moss
c. ferns
d. horstails
B. Club moss
Explanation:
This is because club moss is an seedless evergreen plants that have scale-like leaves.
Can you plz mark me as brainliest!!!
answer : club moss
explanation: Because they have vascular tissue, seedless vascular plants
are often larger than nonvascular plants. Vascular tissue is spe-
cialized to transport water to all of the cells in a plant.
Which unit in the metric system is used to measure the mass of a boulder?
Answer:
Cubic feet
Explanation:
Igneous rocks turn into sediments through the process of ______.
A . Erosion
B.crystallization
C.melting
D. Deposition
what are the components of blood
1 . RBC red blood cells
2. WBC white blood cells.
Answer:
plasma, RBCs, WBCs, platelets.
The rate of capillary filtration and reabsorption are increased when......... .
A) the negative pressure of interstitial fluid is reduced
B) the pressure of oxygen available to tissues is decreased
C) intravenous pressure is increased
Answer:
Mechanisms of enhanced transcapillary filtration in response to elevations in arterial or venous pressure. Elevations in arterial (Pa) or venous (Pv) pressure increase capillary pressure, which favors enhanced capillary filtration (Jv).
option"c"
This is the last
What are the vestigal organs present in human body??
Answer:
Charles Darwin listed a number of putative human vestigial features, which he termed rudimentary, in The Descent of Man (1871). These included the muscles of the ear; wisdom teeth; the appendix; the tail bone; body hair; and the semilunar fold in the corner of the eye.hope it's helpful .!pls mark me in brainlist2. At what temperature did the prodigiosin-producing genes express in the S. marcescens culture? From the experiment you conducted in this lab, what evidence can you provide to support your claim?
Answer:
The temperature is the key factor for prodigiosin production. It has been shown that , S. marcescens can produce this kind of pigment at about 25 °C, which however could not produce the pigments at elevated temperatures, especially till 37 °C
Explanation:
scientists believe the earth likely warmed between 0.65 celsius and 1.05 celsius with an average value of 0.85 celsius between years 1880 and 2012. what was error bar for the increase in temperature over that period?
Answer:
The lower limit is 0.65°C
The upper limit is 1.05°C
the average is 0.85°C
The difference between the average and the lower limit is:
0.85°C - 0.65°C = 0.20°C
the difference between th average and the upper limit is:
0.85°C - 1.05°C = -0.20°C
Then we can write the change in temperature as:
T = 0.85°C ± 0.20°C
Now we want to find the error bar.
The error bar would be the total distance between the lowest value and the largest value.
Then the error bar is:
1.05°C - 0.65°C = 0.40°C
notice that the error bar is twice the error, which makes a lot of sense because the error (± 0.20°C) goes up and down.
Then the error bar in this measure has a magnitude of 0.40°C.
helppppppppppppppppppp
Answer:
Explanation:
C ạ
yinto uxinzelelo lwengqondo?
Answer:
ni se la respuesta estoy respondiendo sólo para ganar puntos
Mr. L was walking through the woods wearing shorts and sandals. He noticed a small tick on his ankle the same evening, and several weeks later he developed flu-like symptoms. A sample of his blood revealed the presence of long, wavelike cells that were twisting and waving. Based on the microscopic findings, which type of microorganism is responsible for Mr. L's symptoms
Answer:
Protozoa
Explanation:
The long, wavelike cells seen under the microscope would most likely be protozoa and the microorganism responsible for Mr. L's symptoms.
Tick as a vector is capable of causing diseases such as lyme disease, anaplasmosis, babesiosis, Powassan virus disease, tularemia, and a host of other diseases. Among all the diseases, babesiosis is particularly caused by a protozoan known as Babesia microti and it elicits malaria-like symptoms in individuals. Most of the other diseases are caused by bacteria pathogens while a few are caused by virus.
Apart from the above, the morphological characterization of the microorganism responsible for Mr. L's disease is typical for protozoans. Many of them are long and flagellated with a wave-like motion as a movement.
Hence, the case of Mr. L would be that of protozoa.
Please help
ASAP 10 points
Answer:
I would guess B, systematic sampling. I might be wrong though.
Explanation:
Bào tử sinh ra trong túi, khi chín, bào tử được giải phóng ra bên ngoài, là hình thức sinh sản bằng:
A. Bào tử đốt
C. Bào tử nang
D. Bào tử tiếp hợp
B. Bào tử đính
Bào tử sinh ra trong túi, khi chín, bào tử được giải phóng ra bên ngoài, là hình thức sinh sản bằng:
A. Bào tử đốt
C. Bào tử nang
D. Bào tử tiếp hợp
B. Bào tử đính
Nó sẽ là lựa chọn A và D nhưng nếu nó chỉ cho phép bạn một lựa chọn thì A.
Bởi vì các bào tử sinh sản và có một cách tự vệ và đó là bằng cách châm chích. Và có hàng ngàn bào tử trên khắp môi trường của chúng ta.
A 36 years old female came to see the doctor with the complaint of amenorrhea (absence of menstrual period) for past three months. She is worried if she is pregnant although she never missed her Contraceptive Pills. She recently noticed some milky discharge from her left breast and abnormal facial hairs. She also said that her period was irregular and less in amount for past one year. She also gained 15 pounds during last year but denies any cold intolerance, dry skin, depression, fatigue or hot flushes.
Her menarche was at 14 and she had regular 21 days cycle till last year when it became irregular and gradually scanty.
Her LMP (last menstrual period) was 3 months back.
She has a 10 years old healthy child (normal vaginal delivery). She has regular Pap test, last test was done 10 months ago which was normal.
Her mother had menopause at age 55.
Her vitals were normal.
Her pregnancy test was done at the office which was Negative.
The doctor reassured and discussed hormonal imbalances with her. She recommended her urine and blood tests for hormone levels and pelvic ultrasound to check her reproductive organs. The doctor advised her to come back with all the test result
1. After reading given case, what will be the most likely diagnosis of this patient?
2. Normal woman does not show and breast discharge, what could be the reason in this patient for breast discharge?
Help me answer to your best of ability
Answer:
The correct answer is -
1. galactorrhea or prolactinoma
2. hormonal imbalance (prolactin imbalance)
Explanation:
The given symptoms experienced by the patient are the absence of menstrual cycles, an increase in weight, some milky discharge from her left breast, and abnormal facial hairs. The pregnancy tests show she is not pregnant and she also does not experience cold intolerance, dry skin, depression, fatigue or hot flushes.
All these suggest that there is a hormonal imbalance in her and due to producing a white substance from the breast it can get that there is too much production of prolactin, which suppresses the effect of estrogen, which is producing by the pituitary gland.
Galactorrhea or prolactinoma are two disorders that affect the production of prolactin that cause milky discharge, it can be caused by overuse of contraceptives or underlying conditions.
Direct counts of cells in liquid samples can be performed using a Petroff-Hausser counting chamber. Research this method and describe how it compares to the viable plate count method of determining the number of CFU in a sample.
The viable plate count is the most commonly used method to estimate the number of viable cells in a sample; while the Petroff-Hausser counting chamber is a direct microscopic count method generally used for counting bacteria and sperm cells.
The Petroff-Hausser counter is a counting chamber used to count microorganisms and cells (e.g., bacteria and spermatic cells) under the microscope.
The Petroff-Hausser counter chamber is divided into 25 large squares which are in turn divided by double lines. Moreover, within each large square, there also are 16 small squares divided by single lines.
Petroff-Hausser counting chambers are often used to directly determine the number of bacteria in a culture or liquid medium. Petroff-Hausser counting chambers are used to count the number of cells in a given volume of culture liquid by observing 10 to 20 microscope fields.
The viable plate count, also known as simply plate count, is the most commonly used procedure to estimate the number of viable cells in a sample.
The viable plate count method consists in obtaining serial dilutions of a sample having viable microorganisms/cells which are plated onto a growth medium.
This method (viable plate count) can be used to determine the number of actively dividing cells.
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Many anti-evolutionists believe that since science doesn't have answers for all questions; scientific conclusions are not necessarily correct. This attitude reflects a failure to understand the nature of science. What is the general nature of scientific thinking? In what way is science "self correcting"?
Answer:
In science, accepted theories do not represent absolute truths. A scientific theory is accepted when there is much evidence available that support its statements, but new lines of evidence can modify original presumptions
Explanation:
A scientific theory is a plausible explanation of a particular phenomenon of the natural world, which has been many times tested and verified by using the scientific method. The accepted theories are progressively modified (or even overturned) as new lines of evidence emerge. In consequence, a scientific theory is composed of statements that we consider as truths regarding the available evidence, but we have no absolute certainty that such statements are true. The ability to self-correct is fundamental in science and it happens when we discover that the original statements of a scientific theory were wrong, thereby new lines of evidence allow us to correct the error and/or develop new scientific theories.
What is the role of pitutary gland in puberity
Answer:
Puberty has begun. The trigger for puberty in both boys and girls is the production of 'gonadotrophin releasing hormone' (GnRH) from a part of the brain called the hypothalamus. This hormone stimulates the pituitary gland to release two hormones, Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH).
Explanation:
Please Mark me brainliest
Answer:
the gland produce hormones that help to regulate growth and body functions.
Abnormalities in the number of X chromosomes tends to have milder phenotypic effects than the same abnormalities in autosomes because of ___________.
Answer:
D. (X inactivation) I believe!
Hope this helps! Have a nice day :)
A boatload of Swedish tourists, all of whom bear the MM blood group, is marooned on Haldane Island, where they are met by an equally sized population of Islanders, all bearing blood group NN. In time, the castaways become integrated into Island society. Assuming random mating, no mutation, no selection (based on blood group), and no genetic drift, what would you expect the blood group distribution to be among 4000 progeny of the new Haldane Island population
Answer:
1000 MM individuals; 2000 MN individuals; 1000 NN individuals
Explanation:
The Hardy-Weinberg principle states that, under certain conditions, the frequency of alleles and genotypes in a sexually reproducing population will remain constant over generations. The Hardy-Weinberg assumptions include random mating, sexual reproduction, and the absence of evolutionary forces such as mutation, natural selection, and genetic drift (as in the example above). Under these conditions, the frequency of alleles and genotypes in a population will not change and tend to the equilibrium. In this case, under Hardy-Weinberg equilibrium, the frequency of the M allele or 'p' must be equal to 0.5, and the frequency of the N allele or 'q' must be equal to 0.5 (i.e., the sum of all allele frequencies in the population must be equal to 1). Moreover, the frequencies of the genotypes will be p², 2pq, and q² >> p² (MM genotype) = (0.5)² = 0.25; q² (NN genotype) = (0.5)² = 0.25; and 2 x p x q (MN genotype) = 2 x 0.5 x 0.5 = 0.50. In consequence, under Hardy-Weinberg equilibrium, in a population of 4000 diploid individuals (8000 alleles), we have
- 4000 M alleles (M = 0.5) and 4000 N alleles (N = 0.5);
- 1000 MM individuals [p² >> (0.5)² = 0.25]; 2000 MN individuals (2pq >> 2 x 0.5 x 0.5 = 0.5) and 1000 NN individuals [q² >> (0.5)² = 0.25].
At which location is contact metamorphism least likely to occur
1. divergent boundary
2. convergent boundary
3 .transform boundary
Contact metamorphism is the result of rising of hot magma, where by contact, other previously solidified rocks also metamorphize. This events occurs in convergent and divergent plate boundaries.
-------------------------------------
Contact metamorphism refers to a localized metamorphism. It occurs in the vicinity of intrusive igneous rocks and results from the term effects of hot magma.
Contact metamorphism occurs under elevated temperatures and low-pressure conditions. It is closely related to magmatism.
It occurs in oceanic dorsals, where the extremely hot magma rising to the surface metamorphizes other previously solidified magmatic rocks.
It is very common to find this metamorphism at both convergent and divergent plate boundaries, where molten rock is produced.
I. Convergent. Collision area between two plates. Two oceanic plates might collide, or one oceanic plate with a continental one. In this last case, the oceanic crust sinks under the continental plate, and magma rises to the surface by crevices. The thicker and older plate subduces under the other plate. Also, collisions create volcanic arches and continental arches. In these boundaries, blueschists form by contact and regional metamorphisms.
II. Divergent: New crust is created by the rising molten materials coming from the mantle when two plates separate. A stream of hot material creates a new seabed between the separating plates, producing the sea bottom expansion. This process occurs along with an underwater mountain range, known as the mid-oceanic ridge or divergent ridge. Chlorite and plagioclase metamorphic rocks are formed by contact metamorphism.
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black coffee has a pH of 5, therefore its H+ concentration is ______ times greater than a solution with a pH of 10.
Answer:
100,000
Explanation:
pH of coffee = 5
pH of solution = 10
Concentration of H+ ions between successive pH values are in multiples of 10
Hence, the pH difference :
pH of solution - pH of coffee
(10 - 5) = 5
Hence, difference in H+ ions will be :
10^5 = 10*10*10*10*10 = 100,000 times
Make a molecule between 11Na and 2He and name it.
Answer:
Na2He
Explanation:
This is the correct answer
give a reason why lack of roughage in diet often leads to constipation
Answer:
The main cause of constipation is intake of a low fiber diet.the bulk and soft texture of fibre helps prevent hard dry stools that are difficult to pass thereby reducing constipation.
I hope this helps
The body regulates the amount of hormones are released by using feedback loops. A __ feedback loop increases the response whereas a __ feedback loop decreases the response.
Positive feedback loop increases the response whereas a negative feedback loop decreases the response.
What is positive feedback?Positive feedback is the amplification of a body's response to a stimulus. For example, in childbirth, when the head of the fetus pushes up against the cervix (1) it stimulates a nerve impulse from the cervix to the brain (2).
A feedback mechanism resulting in the inhibition or the slowing down of a process.
Examples of processes that utilise negative feedback loops include homeostatic systems, such as thermoregulation (if body temperature changes, mechanisms are induced to restore normal levels), blood sugar regulation (insulin lowers blood glucose when levels are high ,glucagon raises blood glucose when levels are low).
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