Answer:
the answer is B if anybody is wondering
Explanation:
The way in which the results of an experiment have bias is an outlier data point is present. The correct option is B.
What is an experiment?An experiment is a task performed in a hypothesis to prove the results of the experiment.
The experiment needed the required instrument, chemicals, products, etc.
Thus, the correct option is B) an outlier data point is present.
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Metallic bonds are responsible for many properties of metals, such as conductivity. Why is this possible? (1 point)
O Metals have low electronegativity, so they are conductive because they pass charges easily.
OTwo metals bonded together are going to be more conductive than a metal bonded with a nonmetal.
O The bonds can shift because valence electrons are held loosely and move freely.
O An attraction between a positive charge and a negative charge is created.
The correct answer is; Metals have low electronegativity, so they are conductive because they pass charges easily.
Metals are found towards the left hand side in the periodic table. They are known for their low electronegativity. Metals are electropositive. This means that they loose charges(electrons) easily.
A metallic bond is comprised of positively charged metallic ions and a sea of electrons.These electrons can move freely.
This sea of electrons are the charges that are responsible for the properties of metals such as high conductivity.
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Answer me!!!!
Read the descriptions of two experiments below.
Experiment 1: A group of students did a test to see if the
acidity of water affects the growth of pea plants. They
followed a logical method and performed their experiment
once, using a control group and experimental groups. The
results supported their hypothesis.
Experiment 2: A group of students did a test to see if the
acidity of water affects the growth of bacteria in the water,
They used a control group and experimental groups. They
repeated their experiment several times and received the
same results each time.
Which experiment is more likely to be reliable, and why?
O A. Experiment 2, because it gave the same results every time
O B. Experiment 1, because its results supported the hypothesis
O C. Experiment 1, because it followed a logical method
O D. Experiment 2, because its setup included a control group
Answer:
A
Explanation:
Because it is giving you the same results ( i just did the test and got it right)
Answer:
a.
Explanation:
just took the test
What happens if a cell goes through metastasis?
Answer:
In metastasis, cancer cells break away from where they first formed (primary cancer), travel through the blood or lymph system, and form new tumors (metastatic tumors) in other parts of the body. The metastatic tumor is the same type of cancer as the primary tumor.
Suppose you traveled back in time and located the first animals to have evolved feathers. You found that these animals were tree-dwelling ectotherms, able to run quickly but unable to fly. You also noticed that only males had feathers. Which hypothesis of feather evolution would these data most support? Feathers initially evolved in a role associated with ________.
Answer:
Feathers initially evolved in a role associated with sexual selection.
Explanation:
In species where only males had feathers, these feathers can be considered to have evolved into a role associated with sexual selection. This is because in these species, males used their feathers as a sexual attraction for females, in this case, females chose the males that had more attractive feathers to mate and generate new individuals for the species. An example of this can be seen in the peacock, where the tail with lush feathers is only present in males and is intended to sexually attract females.
Which of the following does NOT secrete hormones?
A. Ovaries
B. Skin
C. Adrenals
D. Pancreas
Answer:
skin acts as a protective barrier, therefore it does not secrete hormones
Skin does not secrete hormones. Thus, the correct option is B.
What are Hormones?Hormones may be defined as chemical substances that are produced by the organ system of an organism and transported at the site of action via the bloodstream. Hormones act as messenger molecules in the body.
Skin acts as the primary or first line of defense for the immune system. It does not secrete any hormones. It plays an important role in innate immunity. Ovaries are responsible for the secretion of hormones like estrogen and progesterone in females and regulate all the prospective consequences in the body of females.
The adrenal gland secretes hormones like cortisol and aldosterone which are steroid hormones. Such hormones are important in regulating metabolism, inflammation, immune functions, etc. The Pancreas secretes insulin and glucagon which play an active role in regulating the level of glucose in the blood.
Therefore, the skin does not secrete hormones. Thus, the correct option is B.
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ASAP A group of specialized cells working together to perform a function is a(n) ____________.
A. Tissue
B. Cell
C. Organ
D. Organ system
Answer:
THE answer is gonna be A.Tissue
This is the Answer for your question :-)
I hope you are having a great day :-)
Write atleast 2 functions of a frontal lobe.
is the presence of industry in developing nations high? what about developed nations?
Answer:
Developing countries don't have lots of industries, so it's not high
Developed nations have a wide variety of industries
Explanation:
match each term to its definition
a steam of plasma
Answer:
The solar wind is a plasma, a stream of charged particles (ions and electrons) that are continuously escaping from the Sun into the interplanetary medium.
What is the potential disadvanatges of external digestion
Answer:
Environmental hazards such as predators reduce the change if surviving into adulthood, Large amounts of gametes go unfertilised and wasted, Not guaranteed that sperm will come in contact with eggs, Greater chance of desiccation of gametes/zygotes.
Explanation:
Can you guys help me please ?
Answer:
a
Explanation:
Answer this for 10 points ✌
what is mid brain?
A relatively small region of the upper brainstem that connects the forebrain and hindbrain. It contains the tectum (and associated inferior and superior colliculi), tegmentum, and substantia nigra. Also called mesencephalon.
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Pls can someone tell me how many times the human heart beats daily.
Answer:
human heart beats about 100,000 times in one day
Answer:
100,000 times daily
Explanation:
A heart beats about 100,000 times a day and pumps about 7,200 liters (1,900 gallons) of blood.
Cheers,
Cross-contamination of food occurs when a. perishable foods are kept at room temperature for more than 2 hours b. a utensil contaminated with a microorganism from a previously handled food contacts a second food c. two or more food handlers work on the same food d. two or more microorganisms grow in the same food
ANSWER: B
explanation: from what I learned in culinary arts, this is kind of a trick question. Its not asking how foods can get contaminated, its asking how CROSS CONTAMINATION can occur. Cross contamination occurs in three ways think of it like this: food-to-food, equipment-to-food, and people-to-food. The answer has to be between B and C. But the answer is B, because the utensil is already contaminated and it is coming in contact with another food. The two or more food handlers working on the same food are not bringing anything contaminated into the situation. Unless they are contaminated (by they I mean their hands lol) then it cross contaminates but that's not it lol im 99% sure the answer Is B.
Cross-contamination of food occurs when two or more foods come into contact with each other, transferring microorganisms from one food to another. This can happen in a number of ways, including direct contact, contact with a contaminated surface or utensil, contact with a contaminated food handler, or contact with airborne microorganisms.
What is the most common type of cross-contamination ?The most common type of cross-contamination is direct contact, which can occur when one food touches another. This is especially true of perishable foods, which should not be kept at room temperature for more than two hours.
If they are kept at room temperature longer than this, bacteria and other microorganisms can quickly multiply, potentially leading to cross-contamination.
Another common way for cross-contamination to occur is through contact with a contaminated surface or utensil. If a utensil that has been used to handle a food contaminated with microorganisms comes into contact with a second food, the microorganisms can transfer to the second food and cause cross-contamination.
Similarly, if two or more food handlers work on the same food, their hands can transfer microorganisms from one food to another, leading to cross-contamination. Finally, if two or more microorganisms grow in the same food, they can interact with each other and potentially cause cross-contamination.
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what do prokaryotes and eukaryotes have in common?
answers:
A) they both have a nuclear membrane
B) they both have a golgi apparatus
C) They both have chloroplasts
D) they both have cell membranes
C. They both have cell membrane
Which inference can you make about why finches have adapted different beak sizes and shapes? (1 point)
They are different species.
O They live in the same location.
O They eat different foods.
O They have a wide range of variation
Finches have adapted different beak sizes and shapes because they eat different foods. So the correct option is C.
What is natural selection?Natural selection is a mechanism for evolution to happen. It is the process by which living organisms acquire certain characters according to their needs.
It is important to understand natural selection to understand the essential concepts of the processes by which living organisms have been able to develop the complex structures which are helped them to survive.
Natural selection results from various conditions of environment, ecosystem and heredity. An example of natural selection is the development of antimicrobial resistance to pathogens.
Finches are known to have developed different sizes and shapes of beaks according to the kind of food that they eat. If they fed on insects, they had long and pointed beaks. If they fed on seeds and nuts, they had broad and blunt beaks.
Therefore the correct option is B.
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An antibody molecule has a molecular weight of 150 kD when analyzed by SDS polyacrylamide-gel electrophoresis (SDS-PAGE). Treatment with mercaptoethanol, a reducing agent that breaks disulfide linkages, yields polypeptides with molecular weights of 50 kD and 25 kD, and both of these bands are similar in intensity and thickness. Based on this gel pattern as described, what can we conclude about the molecular composition of the antibody molecule
Answer:
The antibody has a molecular weight of 150 kD and consists of four subunits: two subunits of 50 kD and two subunits of 25 kD, which are bonded by covalent bonds.
Explanation:
Sodium dodecyl sulfate (SDS) is a detergent used to alter and denature proteins before gel electrophoresis. SDS can break hydrophobic interactions and hydrogen (H) bonds, but this detergent does not break down disulfide bonds, which is a type of covalent bond between two sulfur atoms. Moreover, mercaptoethanol is a reducing agent used to break disulfide bonds. In this case, it is expected that mercaptoethanol can break disulfide bonds between the four subunits of the mature antibody, thereby yielding two bands corresponding to the 50 kD and 25 kD bands (two subunits of 50 kD + two subunits of 25 kD = 150 kD).
Comets travel in orbits around the Sun. Some comets take less than 200 years to orbit the Sun. They are called short-period comets. Short-period comets are thought to originate in the Kuiper Belt, which is a belt of icy objects just beyond the orbit of the planet ______ The dwarf planet _______ is located in this belt.
Answer:
Comets travel in orbits around the Sun. Some comets take less than 200 years to orbit the Sun. They are called short-period comets. Short-period comets are thought to originate in the Kuiper Belt, which is a belt of icy objects just beyond the orbit of the planet ___Neptune___ The dwarf planet ___Pluto____ is located in this belt.
Explanation:
Is the Use of energy to move particles against the concentration gradient
Answer:
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
What is the best way to test a hypothesis?
Group of answer choices
design and perform an experiment
create a large spreadsheet with all your data on it
do lots of research
ask scientists, then make an educated guess
Designing and performing an experiment is the best way to test a hypothesis.
What is a Hypothesis?This is defined as a proposed explanation about a particular phenomenon or occurrence.
Performing experiments helps to test if the hypothesis if it is valid or not which is why option A was chosen.
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Carl Linnaeus developed a two-word system for naming organisms. It is called .
help needed asap please :(
Answer: its the top one
Whch part of reproductive system produces semen
What's the common ecosystem of a Paramecium aurelia
Answer:
Paramecium live in aquatic environments, usually in stagnant, warm water. The species Paramecium bursaria forms symbiotic relationships with green algae. The algae live in its cytoplasm. Algal photosynthesis provides a food source for Paramecium.
can someone please help with this urgently.
you don't have to explain, just answer
Answer:
B. option A 2 daughter cells
C. option D metaphase
Answer:
Q1 B
Q2 D
Q3 D
Q4 D
Explanation:
Plant
cell can be identified by the process of
A) Choloroplast
B) plasma membrana
c) cell wall
D)Mitochondria
A )i and ii (B) i and iii
(c) ii and iii (0) iv only
Explanation:
i think it is choloroplast
mention 10 forest trees and their botanical names with their uses
Answer:
Explanation:
California Box Elder- Acer negundo californicum
Japanese Maple- Acer palmatum
Silk Tree- Albizia julibrissin
Strawberry tree- Arbutus unedo
Bird of paradise shrub- Caesalpinia gilliesii
Harlequin Glorybower- Clerodendrum trichotomum
Cypress- Cupressus spec.
Oregon Ash- Fraxinus latifolia
Sweet Bay- Laurus nobilis 'Saratoga'
Explanation:
I hope its help you Thank youAnalizar el siguiente ejercicio:
Un fragmento de la cadena de ADN que codifica para la proteína oxitocina (una hormona), tiene la
siguiente secuencia de bases: TTATTGATTACACGGTAGCCCCAT. Determinar:
a) El proceso de transcripción del segmento.
b) La secuencia del ARN (m) que codifica.
c) El número de codones que presenta el fragmento.
f) elabore un gráfico sencillo que represente los procesos de la síntesis de este fragmento para que
puede formar la proteína en estudio (oxitocina)
Answer:
biko share us you questions in English
Name two organs that are made up of all four tissues?
Heart and lungs are the two organs that are made up of all four tissues. secretion, movement, strength, excretion and communication are the main functions of tissues.
What are tissues in human body?Tissues are the same type of group of cells which have the same structure and functions together in a unit. Connective tissue, epithelial tissue, muscular tissue, and nerve tissue are the four fundamental forms of tissue. Other tissues are held together and supported by connective tissue bone, blood, and lymph tissues.
All body surfaces are covered in epithelial tissues, which also line bodily cavities and hollow organs and make up the majority of glandular tissue. Connective tissues are presents in the blood cells in the human body. Loose connective tissue, adipose tissue, dense fibrous connective tissue, elastic connective tissue, cartilage, osseous tissue, and blood are further more tissues in the body.
Thus, Heart and lungs are the two organs that are made up of all four tissues.
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What are the three examples to justify Newton first law of motion .
