Which of the following is true about scientific theories?
A. Theories may change depending on new evidence.
B. Theories are the best explanations provided without any evidence.
c. Theories are opinions developed by scientists.
D. Theories are explanations that will never change

Help please!

Answers

Answer 1
I think the answer is A
Answer 2
I think the answer is A as well!

Related Questions

scientists tried inserting the jellyfish gene that codes for luminescence into bacteria. Not all bacteria where transformed. Which bacteria were transformed?

Answers

Answer:

Explanation:

Scientists tried inserting the jellyfish gene that codes for luminescence into bacteria. Not all bacteria where transformed. Which bacteria were transformed? Only the bacteria that do not glow in the dark were transformed.

Which of the following defines thermal energy?

Answers

Answer:

what are the answers?

Explanation:

Answer:

Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.

Explanation:Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.

What force will a cannonball have if it has a mass of 4 kg and accelerates it to 110 m/s²?

Answers

I’m assuming the cannon ball is being shot directly horizontally. If there’s an angle, this answer will be wrong. But either way, you want to use Newton’s Second Law of motion.
F = ma, you could change this to a = F/m to get a better understanding of the equation. Acceleration and force are directly proportional. The mass is inversely proportional to acceleration. This means the net force will be in the same direction as the acceleration.

Alright back to the problem:
F = 4kg*110m/s^2
F = 440N

1 point
2. Two main differences between mitosis and meiosis are
A. Mitosis creates body cells with 46 chromosomes each, and Meiosis creates sex
cells with 23 chromosomes each.
B. Meiosis creates body cells with 46 chromosomes each, and Mitosis creates sex
cells with 23 chromosomes each.
C. Mitosis - crossing over occurs, and matching pairs of chromosomes (homologous
pairs) separate
D. Meiosis, two new cells are produced, and they have the total number of
chromosomes (46).

Answers

Answer:

mitosis: 1.is cell division

2. daughter cells are identical to the mother cell in terms of the number of chromosomes

3. passes through several phases

meiosis

1. The zygote is the most concrete example of division

2. daughter cells are not the same as the mother cell in terms of the number of chromosomes

3. can be divided into more than two

Arrange the stages of embryonic development in the correct order.

Answers

Answer:

1. egg fertilized to form a zygote

2. cell division in a zygote to form a morula

3. cell division to form a blastocyst

4. differentiation of cells in the blastocyst

5. development of tissues

6. development of organs

Explanation:

Hope that helps!

Answer:

egg fertilized to form a zygote

cell division in a zygote to form a morula

cell division to form a blastocyst

differentiation of cells in the blastocyst

development of tissues

development of organs

can someone help please

Answers

Answer:

the balloon would grow in size

temperature

Explanation:

Which soil horizon has the least nutrients? why?

Answers

Answer: Subsoil

Explanations: This layer has normally less organic matter than the A horizon, so its colour is mainly derived from iron oxides. Iron oxides and clay minerals accumulate as a result of weathering.:

Which statement correctly describes how an organelle contributes to the ability of the cell to perform life functions?

Answers

Where are the options for this?

The lysosomes digest food and break down cell parts when they die and the cell membrane prevents all harmful substances from entering the cell. So, the correct options are C and D.

What is Cell?

Cell is defined as the smallest unit that can live on its own and that makes up all living organisms and body tissues where the cell has three main parts: cell membrane, nucleus, and cytoplasm. The cell membrane surrounds the cell and controls the movement of substances into and out of the cell.

A single cell is itself an organism. For example, yeast or bacteria. Other cells acquire specialized functions soon after they mature which acquire unique functions when they mature. They cooperate with other cells and become the building blocks of multicellular organisms such as humans and animals.

Therefore, the correct options are C and D.

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Your question is incomplete, most probably the complete question is

Which statement correctly describes how an organelle contributes to the ability of the cell to perform life functions?

A. The cytoplasm stores the genetic instructions for the cell.

B. The mitochondrion responds to chemical messages in the cell.

C. The lysosomes digest food and break down cell parts when they die.

D. The cell membrane prevents all harmful substances from entering the cell.

What must be found in each of the two daughter cell in order for them to be functional??? 15 POINTS!!!

Answers

I believe it’s referring to DNA they must contain DNA
The daughter cells must contain DNA

"Yuck!" This statement represents which of the following functions of language? (2 points)
Group of answer choices

Phatic

Conative

Emotive

Poetic

Answers

Answer:

C) Emotive

Explanation:

I just took the test now :))

Emotive statement represents the functions of language.

What do you mean by emotive language?

Emotive language is the use of descriptive words, often adjectives, that can show the reader how an author or character feels about something, evoke an emotional response from the reader, and persuade the reader of something.

Emotive language refers to language designed to target an emotion – positive, negative, sometimes deliberately neutral – and to make the audience respond on an emotional level to the idea or issue being presented.

Emotive language is an extremely important technique in creating audience engagement with a text. Also called 'loaded language', emotive language occurs when authors choose words extremely carefully to evoke specific emotional responses in a reader.

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Which statements accurately describe elements? Check all that apply.
Elements are made up of two or more types of atoms.
Elements are made up of only one type of atom.
Each element has a unique chemical symbol.
O Elements can be identified by their atomic number.
One element cannot be combined with another element.

Answers

Answer:

Elements are made up of only one type of atom.

Each element has a unique chemical symbol.

Elements can be identified by their atomic number.

Explain what would happen to germination speeds if one seed was buried 10 cm deep into the soil, another seed
at 5 cm deep and another seed sitting on the top of the soil. Explain why. (2-3 complete sentences)
WILL GIVE BRAINLIEST TO BEST ONE

Answers

Answer:

The seed which is buried deep in the soil won't germinate

because

it won't get sufficient oxygen / airit won't get sufficient sunlight and etc...

Answer:

Seed that had been planted 10cm deep won't get enough sunlight and adding water to make it grow just makes the condition even worse.

Seed that had been planted 5cm deep might not get sufficient sunlight because the rays of the sun cannot pass through the soil.

Seed that is on the top of the soil might get carried away by the wind, or dried due to extreme sunlight, or might get carried away by a predator.

11. Which of the following macromolecules is made up of Carbon, Hydrogen and Oxygen??
A) Proteins
C) Amino Acids
B) Carbohydrates
D) Lipids

Answers

Answer:

B) Carbohydrates

Explanation:

Carbohydrates are made up of only Carbon, Hydrogen and Oxygen.

A student puts drops of Lugol's iodine solution into the water in the beaker shown. The water turned red. After a short time, the starch solution inside the dialysis tubing turned black. Which function of the cell membrane was the student demonstrating?

Answers

Answer:

Cell membrane as  a semi permeable membrane.

Explanation

A semi permeable membrane is the one that would only allow water,ions  and certain molecules to pass through it  by diffusion while restricting other  large molecules from passing through.

Details in the attachment.

Planets are much
than stars.
A)
bigger
B)
hotter
0
smaller
D)
farther away from Earth

Answers

Answer:

C) Smaller

Explanation:

Answer:

smaller

Explanation:

What type of cell is pictured to the right?



Hopefully I get a quick answer...

Answers

Answer:

This cell is a prokaryotic cell

Answer:

Prokaryotic

Explanation:

It has pili, the little hair looking things, on the outside. eukaryotic cells don't have that.  also, if you don't believe me, search up prokaryotic cells, click on images, and this exact picture pops up.

The picture shows fruit produced by two parents and fruit
produced by one of their offspring.
Which of these best describes this inheritance pattern?
х
O codominance because he fruit color of the offspring is
an intermediate form of the parents' fruit color
O codominance because both parents' colors are
expressed in the offspring
O incomplete dominance because both parents' colors
are both visible in the offspring
O incomplete dominance because the fruit color of the
offspring is an intermediate form of the parents' fruit
color

Answers

Answer:

incomplete dominance because the fruit color of the  offspring is an intermediate form of the parents' fruit  color

Sry if I'm wrong, have a nice day.

The given image shows incomplete dominance because the fruit color of the offspring is an intermediate form of the parents' fruit color. The correct option is D.

What is incomplete dominance?

When both alleles of a gene are only partially expressed at a locus, it is known as incomplete dominance.

This sort of gene interaction frequently produces an intermediate or distinct phenotype. Additionally called partial dominance.

Two other types of genetic inheritance are codominance and incomplete dominance. It basically means that no allele can prevent or stifle the production of the other allele through codominance.

Incomplete dominance, on the other hand, occurs when a dominant gene does not entirely block the effects of a recessive allele.

Fruit produced by two parents and fruit produced by one of their children are shown in the photo.

Because the fruit color of the offspring is an intermediate version of the fruit color of the parents, it is incomplete dominance.

Thus, the correct option is D.

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3. Evaluate Information Sodium is an example of an alkali metal. The alkoli metals are
found in the leftmost column of the periodic table, known as Group 1. Use the interactive
periodic table to explore the properties of the following alkali metals: lithium (Li), sodium
(No), potassium (K), rubidium (Rb), and cesium (Cs). The animations demonstrate a chemical
property common to alkali metals: they react with water. How does the reactivity vary
among this group of elements? Why might patterns like this be useful to scientists?

Answers

Answer: This might be helpful because t is a good basis for organizing elements because each element has a unique number of protons and atomic mass is an indirect way of organizing elements by number of protons.

1. Which of these particles is the smallest? (SC.8.P.8.7) *
A. an atom
B. a nucleus
C. a proton
O D. an electron

Answers

Answer:

The smallest particle is the electron (option D).

Explanation:

The electron is a subatomic particle, which is part of an atom and has a negative electrical charge.

Electron is a small particle, if compared to protons -electrically positive particles- whose size is about 1800 times bigger. In fact, the electron is the smallest particle inside the atom.

    According to this, the other options, atom, nucleus and proton are structures larger than an electron.

How are the phases of Venus different than the phase of our moon?

Answers

Answer:

Venus is an inferior planet. Because Venus is so close to the Earth and lies nearer to the Sun, it shows phases, similar to the way the Moon does. It also is closer to us near inferior conjunction (bigger) than at superior conjunction (smaller), and so its angular size changes as the distance between us varies.

Explanation:

Carnivores have sharp, pointed teeth that allow them to tear flesh from prey. What type of adaptation is this?
A) behavior
B) biochemical
C) structural
D) ecological

Answers

Answer:

behavior

Explanation:

Answer:

C) Structural

Explanation:

If this is a Q from Unit 2 Topic 1 Test, I think I'm correct :)

Why can’t you drink salt water?

A: It’s isotonic to your cells

B: it’s hypertonic to your cells

C: it’s paratonic to your cells

D: it’s hypotonic to your cells

Answers

i need 15 points to answer my question im so sorry but do you like anime

What is the physical environment where an organism lives?

Answers

Answer:

Its A Habitat//Ecosystem

An ecosystem is just all the organisms that live in a place, together with their physical environment. Habitat is the natural environment of an organism.

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WHO IS AN EXPERT AT BIOLOGY AND CAN HELP ME ANSWER THIS QUESTION⁉️
I’LL AWARD YOUR ANSWER AS BRAINLIEST ANSWER I PROMISE‼️
PLEASE HELP MEEEE‼️‼️‼️‼️

Answers

Answer:

Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.

Explanation:

The circulatory system works closely with which two other systems?
NEED THIS quick!!!

Answers

Answer:

The respitory system and the nervous system.

Explanation:

I'm pretty sure

Since the elephant’s diet consists of play material only, where would the elephant get the missing element needed to make collagen (or any protein)?

Answers

Answer:

The elephant is a herbivores animal and feeds on plant material that consist of cellulose. Collagen is a type of protein  that is absent in plant material and only found in skin, tendons, bones and muscles. The elephant also requires collagen to replace or repair their skin cell in every 2 weeks.

As elephants are unable to consume meat that contains collagen, they get collagen or protein from the plant material only with the help of bacteria or enzymes present in its guts. The bacteria having enzymes that helps in the breakdown of cellulose and access the proteins, fat or sugar present in the plant cell.

Elephants get collagen and other proteins from the vegetables they consume.

We can arrive at this answer because:

Collagen is essential for the maintenance of the skin.However, collagen is found in large amounts in meat.Few vegetables have collagen and elephants only feed on vegetables.However, the demand for collagen in the elephants' body is met by feeding on vegetables rich in cellulose and vitamin C.

When cellulose is digested and vitamin C is used in the body, collagen production is stimulated.

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Tonya is modeling the discovery of electromagnetic induction. Which procedure should she use?
O moving a magnet into a coil of wire in a closed circuit
O moving a magnet into a coil of wire in an open circuit
O bringing a compass near a wire that has no electric current
O bringing a compass near a wire that has an electric current

Answers

Answer:

Moving the MAGNET to a CLOSED circuit

Explanation:

Answer:

A

Explanation:

Rabbits normally eat some grass as a food source. In a habitat, a new species of grass is introduced that out-competes most of the original species of grass. The new species of grass contains a chemical that is usually toxic and fatal to most rabbits. Assuming that all rabbits in this habitat will eat some of the new species of grass, how will the presence of the new grass most likely decrease the diversity of the rabbit population in this habitat?​

Answers

Answer:

Well The Diversity will decrease.

Explanation:

If the Grass Is Toxic to the Rabbit than the rabbits will either die from eating the grass, or they will stop eating it and need to find a new food source. this will lead to the to the rabbits that are resistant to the toxic grass being able to reproduce more and therefor becoming more abundant.

This biome is near the equator.
A Rainforest
B Temperate Forest
C Grasslands
D Desert

Answers

Answer:

The Desert.

Explanation:

since it is in the equator the earths tilt is more shown to the sun.

Answer:

bru it's rainforest

Explanation:

discuss how temperature and amount of precipitation can affect the type of plants and animals found in the tundra biome.​

Answers

Most organisms are adapted to live within a particular range of temperatures and will not survive at temperatures too far above or below their range. Precipitation also limits the organisms that can be found in a biome because all organisms need water, and the bigger the animal, the more water it needs.
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