Which of the following do scientists think might make up dark matter? Select the three correct answers.
A. weakly interacting massive particles
B. black holes
C. gamma rays
D. massive compact halo objects
E. spiral galaxies
F. galaxy clusters

Answers

Answer 1

Answer:

A. Weakly.. B. Black.. D. Massive..

Explanation:

Well, I already took the quick check and got them wrong, and then got the answers for y'all

Answer 2

The options that scientists might think of to make up dark matter are as follows:

Weakly interacting massive particles.Black holes.Massive compact halo objects.

Thus, the correct options for this question are A, B, and D.

What is meant by Dark matter?

Dark matter may be defined as the type of particles that do not absorb, reflect, or emit light significantly. Due to this, they cannot be exposed by visualizing electromagnetic radiation. The materials of dark matter can not be examined directly.

According to the context of this question, dark particles considerably include weakly interacting massive particles along with the part of black holes and massive compact halo objects. Hypothetically, it is believed that approximately 85% of the matter in the universe accounts for dark matter.

Therefore, the correct options for this question are A, B, and D.

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Related Questions

since dna is replicated semiconservatively, what does each new daughter cell receive from the parent cell after replication and mitosis?

Answers

Answer:

the exact same organelles from the parent

Explanation:

The word matrix can be used to describe things shaped In a pattern of lines and spaces. How does this relate to a mitochondrion?

Answers

The definition of the word matrix can be applied to the organelle known as mitochondria given that the mitochondria have what is known as a "mitochondrial matrix".

The mitochondria are amongst the most important organelle of a cell. They are responsible for the production of energy molecules in the form of ATP. The basic structure of mitochondria consist of:

Outer membraneIntermembrane spaceInner membrane MatrixGranules

and contain even more elements within.

The inner membrane of the mitochondria surrounds the matrix, giving it the form of a pattern of lines that bend and curve, leaving spaces in between. The similarity between this shape and the definition that is given of the word "matrix", explains why this structure may have been given the name of the mitochondrial matrix.

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when did hans and zacharias janssen contribute to the cell theory

Answers

1595 Zachariah’s Jansen was a Dutch spectacle maker from middleburg son to hand Jansen .

help me pls........

Take a look at the phylogenetic tree. Which two organisms on the tree would be expected to share the most characteristics?

O cnidarians and animals with bilateral symmetry

Ochoanoflagellates and cnidarians

O sac fungi and cnidarians

O amoebas and sponges​

Answers

Answer:

first option and third option

Explanation:

pls give brainliest have a great day

When heart rate increases what else increases?

Answers

Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps. Generally speaking, your heart beats both faster and stronger to increase cardiac output during exercise.

Answer:

Your heart  increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps. Generally speaking, your heart beats both faster and stronger to increase cardiac output during exercise.

Hope this helps ; ) Brainly, thanks, rating are all appreciated.

Miss Hawaii

what is the primary function of cellular respiration?

Answers

Answer:

Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells. Hope i helped

discuss the functions and deficiency symptoms of phosphorus​

Answers

Answer:

Functions of phosphorus in the body,

i) Formation of bones and teeth. It's a component necessary for forming strong bones and teeth in the body.

ii) It's important in helping to make protein in the body for growth. Since many proteins in the body are phosphorylated for regulating their functions.

iii) Activation of enzymes. This done through phosphorylation.

iv) Gene transcription. It provides structural importance to the gene and protein binding is by the presence of phosphorus.

Deficiency of phosphorus in the body;

i) Weak and fragile bones.

ii) Bone pain.

iii) Fragile teeth.

iv) Stiff joints.

which part of the brain consolidates short-term memory into long-term memory?

Answers

The hippocampus …………

Help i think its either C or B but i don't know please correct me if i'm wrong.
Why is the region bordering the Pacific plate called the "Ring of Fire"?


A) The islands within the Pacific Ocean form a circle from volcanic activity.


B) The Pacific Ocean is a region where climate change has resulted in the highest temperatures.


C)The boundary along the Pacific plate contains most of the active volcanoes on Earth.


D) The Pacific plate forms a ring where wildfires are likely to occur.

Answers

Answer:

B

Explanation:

The answer is B

How do cells make energy?

Through photosynthesis.
Through the breakdown of macromolecules.
Through exercise.
Through the production of methane.​

Answers

Answer:

through the break down of macromolecules

The answers is b
Through the breakdown of macromolecules

which body system initiates the process of muscle contraction

Answers

Answer:

Nervous System

Explanation:

"Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron."

True or false? The effectiveness of an exchange surface is increased if there is a long diffusion path.

Answers

Answer:

True

Explanation:

The Long and Diffusion Path can Help the exchange surface to increased rapidly in a long diffusion path. in other words it grows faster.

If the diffusion path is long, the effectiveness of an exchange surface is improved is false.

What is diffusion?

Diffusion is defined as the net movement from an area of higher concentration to an area of lower concentration caused on by the dispersal of any material's in-solution or gas-particle particles.

Diffusion is the process by which dissolved chemicals enter or exit cells.

What are the parameters that affect the diffusion?

the three parameters that affect diffusion are

The concentration gradient. temperature.length of diffusion pathway.the membrane's surface area.The rate of diffusion increases with the magnitude of the concentration gradientThe rate of diffusion will increase as the temperature rises.Diffusion will occur at a faster rate if one cell membrane is larger than another.How may an exchange surface's effectiveness be enhanced?a wide surface area. a thin membrane to offer a short diffusion pathway. an effective blood supply.ventilation of the animals.

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The four main groups of macromolecules are carbohydrates, lipids, proteins. Identify each type of macromolecule based on its monomer.

Answers

Answer:

1) GLUCOSE is the monomer for CARBOHYDRATES

2) FATTY ACID & GLYCEROL is the monomer for LIPIDS

3) NUCLEOTIDE is the monomer for  NUCLEIC ACIDS

4) AMINO ACID is the monomer for PROTEINS

image thanks to OpenStax

list three ways that organisms use energy

Answers

Answer + Explanation:

Organisms use energy to survive, grow, respond to stimuli, reproduce, and for every type of biological process. The potential energy stored in molecules can be converted to chemical energy, which can ultimately be converted to kinetic energy, enabling an organism to move.

How were ozone levels monitored in 1920?

Answers

Answer:

I don't know

Explanation:

Sorry.. I really don't know

..

.

Help you later

Ozone levels in 1920 were primarily monitored using chemical methods, such as the use of chemical indicators and colorimetric analysis.

Potassium iodide-starch paper was used to detect ozone. When exposed to ozone, these indicators changed colour, letting researchers visually monitor ozone concentration.

Colorimetric analysis was also used. Chemical reagents reacting with ozone changed colour. Ozone concentration connected with colour change intensity. Chemical approaches measured ozone qualitatively or semi-quantitatively. They were easy to use but less precise than modern monitoring approaches.

In the following decades, spectrophotometry and ozone analyzers improved the systematic monitoring and quantitative measurement of ozone levels. These improvements made atmospheric ozone monitoring more precise.

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Explain why the shape of an enzyme is important to its function.

Answers

Answer:

The shape of an enzyme is very important because it has a direct effect on how it catalyzes a reaction.

Each enzyme is folded into a shape that allows the substrate(s) to fit into the active site, which is where the reaction occours. Other substrates do not fit into this active site. This is why each enzyme can only catalyse a specific reaction

Answer:

hey

how is the weather that side

please helpppp

Drag the tiles to the correct boxes to complete the pairs.


What is the function of each lymph organ?

Answers

Explanation:

The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins, as well as the introduction into the systemic circulation of various objects (small and large molecules, liquids, infectious agents, etc.), packed in delivery vehicles - exosomes and vesicles

The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins.

What is lipoprotein?

Particles called lipoproteins are comprised of protein and fat (lipids). They deliver cholesterol to your cells through your bloodstream.

High-density lipoprotein, or "good" cholesterol, and low-density lipoprotein, or "bad" cholesterol, are the two main categories of lipoproteins.

LDL comes in the form of lipoprotein. These lipoproteins transport cholesterol to the artery cells. High levels of LDL particles can cause cholesterol to accumulate in your arteries and create blockages known as plaques. The term "hardening of the arteries" or atherosclerosis refers to this condition.

Therefore, The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins.

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Help this is due in an hour….

Answers

Answer:

I'm sure it's A

Explanation:

What are latent prints?

Answers

Explanation:

Latent prints are formed when the body’s natural oils and sweat on the skin are deposited onto another surface. For example if you put your thumb on your glass you will see that the oils will put your fingerprint there

WHAT IS MEDIAN??????????????​

Answers

Answer:

The middle value in a set of numbers arranged in increasing order. If there is an even number of values, then median is the average of the middle two values.

In anatomy (as your question is marked Biology), the median is situated in the middle; central, intermediate.

When methane (CH4) combines with oxygen (O2), carbon
dioxide (CO2) and water vapor (H20) are produced.
Which equation represents this chemical reaction?
O A. CO2 + CH4 + 2H20 + 202
OB. CO2 + 2H20 – 202 + CH4
OC. CH4 + 202 – CO2 + 2H20
OD. CH4 + 2H20 - 202 + CO2

Answers

Answer:

C. CH4 + 202 – CO2 + 2H20

Explanation:

CH4+O2-CO2+H20

The above equation represents combustion of methane to produce carbon-dioxide and water.

One carbon atom is present on the reactant side as well as on the product side. Four hydrogen atoms are present on the reactant side  and two hydrogen atoms on product side. In order to balance this equation, we would multiply water molecule by two. Now there are four atoms of oxygen in the product side but only two on reactant side, so we will multiply oxygen molecule by two on the reactant side. Now the equation is balanced.

The balanced chemical equation is:

CH4+202-CO2+2H2O

This equation obeys the law of conservation of mass as the mass of the reactants is same as that of the products.

Answer:

C. CH4 + 202 – CO2 + 2H20

Explanation:

What do adenine, ctyosine, guanine, thymine, and uracil have in common

Answers

Adenine and guanine have a fused-ring skeletal structure derived of purine, hence they are called purine bases. ... Similarly, the simple-ring structure of cytosine, uracil, and thymine is derived of pyrimidine, so those three bases are called the pyrimidine bases.

In basidiomycete fungi, where specifically do nuclei from parents combine to make offspring spores

Answers

In basidiomycete fungi, the nuclei from parents combine in the BASIDIA to make offspring spores. Basidia are microscopic structures but they are generally produced on large fructifications known as fruit bodies.

A basidium is a sporangium localized on the hymenophore of the fruiting bodies in basidiomycete fungi.

In basidia, the nuclei of two parental strains fuse by karyogamy and then divide to reproduce basidiospores.

A basidium generally contains four sexual spores known as basidiospores.

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Poultry products are a likely source of infection by:

Answers

Poultry products are a likely source of infection by Salmonella enterica

which causes typhoid.

Most farm animals such as pigs, cattle and poultry have been found to be

infected with Salmonella enterica as a result of their contact and exposure

to a dirty environment.

This is why it is advisable to apply much heat on poultry products such as

eggs to kill the micro-organism.

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A change in pH has the greatest impact on which life proces

Answers

Answer:

Aquatic Organisms

If the pH of water is too high or too low, the aquatic organisms living within it will die. pH can also affect the solubility and toxicity of chemicals and heavy metals in the water ¹². The majority of aquatic creatures prefer a pH range of 6.5-9.0, though some can live in water with pH levels outside of this range.

Explanation:

Adding more OH- ions increases the pH, making the substance more basic. Increasing the pH will increase the number of OH- ions, so the equilibrium will shift to the left. Decreasing the pH will increase the number of H3 O+ ions; they'll ''use up'' the OH- ions, thus shifting the equilibrium to the right.

Keyori is making a model to illustrate the functions of ADP and ATP in photosynthesis. Which model best illustrates the role of ATP in photosynthesis?

A power plant that generates energy

A rechargeable battery that stores and releases energy

A pigment that receives the energy of sunlight

A hammer that helps break apart water molecules

Answers

Answer:

A. po

Explanation:

kadi i dont know sorry

explain how the body establishes a pressure gradient for fluid flow.

Answers

Answer: refer to, uofmhealth.org/health-library/tx4097abc

Explanation:

you should find your answer there

For many generations, the flowers in a meadow have been pollinated by a particular species of honeybee. One year, a new species of
honeybee moves to the meadow. This new species pollinates the same flowers as the old species. Which description best predicts
what would happen if a new species of honeybee moves into a meadow that was already occupied by a particular honeybee that
pollinated the meadow?

Answers

Answer:

By the process of mating there will be again undesirable species (hybird) and the particular honey bee might get extinct.

There will be imbalance in ecosystem if a new species of honey bees moves into a meadow that was already occupied by a particular homey bees.

14. What are the two compartments of the forearm and how do they differ?

Answers

Answer:

The anterior compartment is known as the flexor compartment since the muscles primarily function to flex the wrist and digits. The anterior compartment consists of a deep and superficial layer. The superficial compartment contains the pronator teres, the flexor carpi radialis, and the flexor carpi ulnaris.

Help with 1 and 2 plz make sure it’s right will mark brainiest

Answers

The answer should be
1. C
2.D
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