Answer:
A hypothesis is a possible answer to a scientific question, but it isn’t just any answer. A hypothesis must be based on scientific knowledge, and it must be logical. A hypothesis also must be falsifiable. In other words, it must be possible to make observations that would disprove the hypothesis if it really is false.
Explanation:
Does mixing compost with soil improve the growth of plants?
Answer:
yes!
Explanation:
Mixing compost with soil provides nutrients for plants today but also enhances soil for future years. The amendment naturally breaks down, releasing important macro- and micronutrients while feeding the beneficial biological organisms in the soil. It also increases the porosity of the soil and helps conserve moisture.
1. Which of the following correctly identifies the composition of an oxygen atom?
8 protons, 8 electrons, and 8 neutrons
6 protons, 6 electrons, and 6 neutrons
8 protons, 6 electrons, and 7 neutrons
06 protons, 6 electrons, and 12 neutrons
Answer:
The answer is A. 8 protons, 8 electrons, and 8 neutrons.
Explanation:
This is because Oxygen's atomic number is 8 and its atomic weight is 15.99 units. The atomic number is the number of protons in an atom. This means that there are 8 protons, along with 8 electrons, because the amount of electrons in an atom are equal to the number of protons (not including ions.) Additionally, to discover the amount of neutrons present in the given atom, you must take the atomic weight and subtract the atomic number (aka # of protons present). Once you subtract, you will be left with the number of neutrons. Since the atomic weight is 15.99, you will round it up to 16 and subtract 8, leaving 8 neutrons present. In all, it has 8 protons, 8 neutrons, and 8 electrons.
Indicate differences between oogenesis and spermatogenesis 1. final number of gametes produced 2. timing of meiosis II 3. timing of onset of prophase I 4. final number of chromosomes in the mature gamete
The correct options indicating the difference s between oogenesis and spermatogenesis are;
1) Final number of gametes produced.
2) Timing of Meosis 2
3) Timing of onset of prophase 1
Oogenesis is process by which a diploid germ cell known as an oogonium which is found in the fetal ovary thereafter becomes a haploid ovum in the adult species after fertilization must have taken place.
During the initial stage of oogenesis,the diploid germ cell moves from the yolk sac to the fetal ovary from there, further mitotic division will occur.
Spermatogenesis on the other hand is simply the process by which haploid spermatozoa get developed from germ cells and finally to sperm production,this occurs in the seminiferous tubules of the testes.
What is a frequency ?
Answer:
Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. Frequency is measured in units of hertz (Hz) which is equal to one occurrence of a repeating event per second.
Explanation:
Answer: Frequency means the rate at which something occurs or is repeated over a particular period of time or in a given sample.
Explanation:
the negative charge in a water molecule occurs because
Answer: The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. When a neutral molecule has a positive area at one end and a negative area at the other, it is a polar molecule.
Explanation:
Consider the following planned experiment.
Factor
Experimental Group
Control Group
amount of water
daily
daily
type of food
fresh grass
Vitamins
yes
housing
indoors
indoors
Which variable is being tested in this experiment?
fresh grass
no
A. Type of food
B. Amount of water
C. Housing
D. Vitamins
Answer:D
Explanation:cuz I just did it
14. A recipe calls for 350 grams of flour. You put in 0.4 kilograms. Did you use the right
amount, too much, or too little?
Answer:
You used too much.
Explanation:
0.4 kilograms is 400 grams
You observe the growth of a group of plants that have been tipped over. How will auxin influence cell growth in the roots of these plants? (1 point) Auxin will build up on the upper side of the root and inhibit cell growth. Auxin will build up on the lower side of the root and stimulate cell growth. Auxin will build up on the lower side of the root and inhibit cell growth. Auxin will build up on the upper side of the root and stimulate cell growth. Will give brainliest !!
Auxin will build up on the lower side of the root and stimulate cell growth.
Hope it helps,
I'm not so sure.
Auxin is a plant growth hormone (phytohormone) which is responsible for the cell division and large amounts of auxin inhibits the growth of roots in plants. Thus, the correct option is C.
What is Auxin?
Auxins are a class of phytohormones which show some morphogen-like characteristics. Auxins play the main role in coordination of growth and behavioral processes in plant life cycles. These are essential for the development of plant body.
Auxin is a key regulator of growth and development in plant, cell division, elongation and differentiation, development of embryo, root and stem tropisms, apical dominance, and flowering in plants.
In the shoots, auxin hormone stimulates cell elongation and the presence of high concentrations of auxin in plants promote growth. However, in the roots auxin hormone inhibits the cell elongation and therefore high concentrations of this hormone limits growth in plants.
Learn more about Auxin here:
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Large waves cause erosion of shorelines. Seawalls constructed of concrete can protect shorelines from this erosion. What type of connection is made between the ideas in these sentences? (1 point)
A.
problem and solution
B.
contrast
C.
cause and effect
D.
description
Will give brainliest IF correct <3
Answer:
Problem and solution is the answer
Explanation:
The type of connection that is made between the ideas in the given sentences is known as problem and solution. Thus, the correct option is A.
What is Erosion?Erosion may be defined as a type of geological methodology through which earthen materials are washed out or eroded away and are significantly migrated from one place to another by natural forces such as wind or water.
According to the given question, large waves are the potential to cause the process of erosion to occur. So, it is basically a problem. In order to overcome the effect of this process, seawalls are constructed that can significantly protect shorelines from this erosion. So, it represents a solution.
Therefore, the type of connection that is made between the ideas in the given sentences is known as problem and solution. Thus, the correct option is A.
To learn more about Erosion, refer to the link:
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In the Endosymbiotic Theory for the origin of eukaryotes, the final step was the engulfing a functional cyanobacterium to produce photosynthetic eukaryotes ("plants"). Why is this stage considered the final step in the sequence of eukaryote evolution?
Answer:
The Endosymbiotic Theory of eukaryote evolution is known as Symbiogenesis that states the evolution of eukaryotic cells from prokaryotic organisms.
The engulfing a functional cyanobacterium to produce photosynthetic eukaryotes ("plants") is considered as final step of the eukaryote evolution because a functional cyanobacterium closely resemble the chloroplast and related to mitochondria and it maintains a large genome that encodes thousands of proteins.
A photosynthetic eukaryotes ("plants") require cholorplast (green pigment) for photosynthesis and protein synthesis, which all are provided by functional cyanobacterium, after that a eukaryote can functions as an individual eukaryote and not as prokaryote, and hence engulfing functional cyanobacterium is considered as last step of eukaryote evolution.
which option gives an object's volume in SI units? PLEASE HELP
Answer:
what’s the answer to this
Explanation:
Answer:
which option gives an object´s volume in SI units?
-2.6m^3
HELP ASAP PLEASE!
scientist adds energy to a
block of metal. According
to the kinetic theory, what
should the scientist predict
will happen to the metal?
Answer:
According to the kinetic energy, the atoms of the metal will become very energetic and will tend to vibrate more within their lattice structure.
As the atom becomes more energetic the atoms become more and more energetic tending to wriggle free from the crystalline metallic structure making the metal more malleable.
With the addition of more energy, the atoms of the metal will become more energetic than the inter atomic metallic bond and the metal starts to melt into liquid metal.
Explanation:
What experimental evidence led to the development of this atomic model from the one before it? A few of the positive particles aimed at a gold foil seemed to bounce back. The colors of light emitted from heated atoms had very specific energies. Equations were used to identify regions around the nucleus where electrons would likely be. Cathode rays were bent in the same way whenever a magnet was brought near them.
Few positive particles aimed at a gold foil seemed to bounce back is the evidence that is responsible for the development of atomic model. Rutherford performed an experiment in which alpha particles are allowed to fire on the gold foil.
Some of the particles bounced back which tell us that there are heavy particles present in the center of an atom.
Most alpha particles pass through the atom which tell us that there is a lot of empty space in an atom.
There is also a slight deflection that occur due to similar charge that tells us the element which is present in the nucleus has positive charge.
https://brainly.com/question/17332540
Answer:
its A the other dude who answer was doing to much
Explanation:
please help :) In an experimental investigation, the variable that the researcher changes or manipulates in order to see its effects is called the blank variable.
Answer: Independent variable
When a cold front passes your location, the temperature drops rapidly. What happens to the air density? uncertain increases decreases remains constant.
Answer:
It increases
Explanation:
hope this helps
Answer: decreases
Explanation: when there is hot air, density rises
Which hypothesis is testable?
O Plants that are grown by using brand A fertilizer taste best.
O Plants that have flowers look prettier than plants that do not have flowers.
O Plants will eventually die off if global warming trends continue.
O Plants make more sugar on sunny days than on Cloudy days.
Answer:
D.Plants make more sugar on sunny days than on Cloudy days
Answer:
D. Plants make more sugar on sunny days than on cloudy days.
Explanation:
i got 100% on edge
Type of data that is measured with numbers
Answer:
If you're talking about scientific data I believe the answer is quantitative data.
What are the monomers used to make carbohydrates, proteins, and nucleic acids?
Answer:
Monosaccharides, Nucleotides, Amino acids
Explanation:
Monosaccharides are the monomers that make up carbohydrates. Glucose is an example of a monosaccharide. Nucleotides are the monomers that make up nucleic acids. Amino acids are the monomers that make up proteins.
What phase of mitosis is shown in the diagram below?
Answer: Telophase
Explanation:
The Tropic of Cancer and the Tropic of Capricorn are located between which latitudes?
Question 4 options:
High 61-90 degrees
Medium 31-60 degrees
Low 0-30 degrees
Answer:
The answers is medium 31-60 degrees.
in scientific method, a part of the experiment is repeated many times in order to reduce randomness or error. These repetitions are called ____.
1. methods
2.control
3.variables
4.trials
Help! 5 questions for 20 points <3
1. Which of the following is NOT a characteristic of life?
A. Maintains homeostasis
B. Composed of cells
C. Composed of atoms
D. Carries out metabolism
2. Which of the following must be true to consider something to be alive?
A. It must be able to replicate its DNA
B. It must be able to respond to light
C. It must be able to convert energy from one form to another
D. It must be able to move
3. Which of the following represents a correct sequence of levels within the hierarchy of life?
A. Community population biosphere
B. Cell population organism
C. Cell organism tissue
D. Organ organ system organism
4. Which of the following characteristics of living things could be applied to an automatic door at a supermarket?
A. Living things grow and develop
B. Living things evolve over generations
C. Living things respond to stimuli in the environment
D. Living things maintain a stable internal environment
5. In the hierarchy of life, which level is below the community level but above the organ level?
A. Cell
B. Population
C. Molecule
D. Tissue
Answer:
1. a
2. b
Explanation:
I'm sorry I know only these 2 :)
Which ecological relationship do sea anemones and hermit crab have?
Hermit crabs and sea anemones have a symbiotic relationship.
Answer:
Symbiotic
Explanation:
Hermit crabs and sea anemones have a symbiotic relationship, meaning they live in harmony together. It's a stable connection that sidesteps the typical prey and predator relationship found in nature. The type of symbiosis they engage in is called commensalism.
Breaking down food (glucose) into usable
energy for an organism's basic functions
is called what?
Heterotroph
metabolism
homeostasis
Autotroph
answer:
metabolism
Explanation:
Question 3 of 15
Which of the following statements best describes the function of the Golgi
apparatus?
A. Signaling gene expression
B. Producing lysosomes
C. Engulfing nutrients
Ο Ο
D. Expelling wastes
SUBMIT
Answer:
the Golgi Apparatus is a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport. Therefore, I believe the correct answer would be B. Producing Lysosomes
Explanation:
What are the four pillars of capitalism?
Answer:
Conscious capitalism has four pillars guiding a business for conducting socially responsible and ethical practices: purpose, stakeholder, culture, and leadership. Higher purpose: This is the idea that every business has a purpose that goes beyond making money.
Explanation:
I looked it up on the internet and this is what i got. I hope it helps
In an observational study researchers try not to
A. Photograph any of the subjects
B. Include people who are difficult to contact
C. Ask questions that are too obvious
D. Influence the people in the study
Answer:
D
Explanation:
horizontal gene transfer can occur through several mechanisms. why is this relevant to humans
Answer:
Explanation:
Horizontal gene transfer helps in acquiring relevant gene that are not present in cell but are beneficial.
If a gene is lost in the cell, through gene transfer it can be regain and the various adverse effect caused through the absence of the gene can be reversed.
It also help in treatment of various disease such as cancer by introducing into the body non cancerous cells and prevent the spread of cancerous cells .
Answer:
Explanation:
Penn foster
Which of the following is one of the most abundant elements in all living
things?
A. Gold
B. Helium
C. Oxygen
D. Silver
Answer:
C. Oxygen
Explanation:
Most, if not all living things use oxygen in some shape or form. While Helium is the most abundant element, it is asking for living things, in which oxygen is a vital building block in maintaining life. Without oxygen, most animal species and humans would die.
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Helllllpppppppp Aquatic questions ill give most points i got and brainliest
Answer:
11: Independent variable
12: Sink
13: Depends on whether your teacher will let you play once a lesson is over but in most classrooms I would say it is not allowed
14:Theory
15: Objective
16: 3
Explanation:
Answer:
bop
Explanation:
9+9+(+(+(9