What can be observed only by observing its affect on gravity

Answers

Answer 1

Answer:

Dark matter

Explanation:

Without dark matter the world can not be held together


Related Questions

Use information in last class, along with what you learned in the diagrams above to fill in the blanks below using the terms:

tendons, actin, myosin, dystrophin, skeleton, myofibrils, fascicles

The muscles in the human body that are connected to bones and aid in the movement of the ______________ are called skeletal muscles. These muscles are connected to bones by ________________. Within each of the skeletal muscles are bundles of muscle fibers. These bundles are also called ___________________.
Each skeletal muscle fiber contains many ________________, which are rod-shaped and contains many sarcomeres (the functioning unit of muscle tissue.) Sarcomeres are made up of thin filaments (composed mainly of the protein _____________) and thick filaments (composed mainly of the protein ______________.) The actin of the outermost myofibril is connected to the cell membrane by a protein called ________________.

Answers

Answer:My answer in the first line is skeleton and the second line is tendons... These are the ones I know I hope it helps you

Which best describes how air moves during convection?

A. Warm air cools as it mixes with cooler, denser air.

B. Cool air warms as it mixes with denser air.

C. Warm air is displaced by cooler, denser air.

Answers

Answer: C warm air is displaced by cooler, denser air.

Explanation:

C. Warm air is displaced by color air

Which statement describes how the van allen belts are formed

Answers

Answer:

energetic charged particles, most of which originate from the solar wind, that are captured by and held around a planet by that planet's magnetic field.

Explanation:

What are the biological catalyst ?

Answers

Answer:

The biological catalysts are enzymes.

Explanation:

Enzymes are proteins that function as catalysts that speed up reactions by lowering the activation energy.  The best way to define an enzyme is that it's a biological catalyst that accelerates a chemical reaction without altering its equilibrium.

Two mule deer lock antlers as they demonstrate strength and worthiness to a female mule deer. The winner of this battle will mate with the female. Is it mutualism, parasitism, commensalism, predation or competition

Answers

Answer:

competition

Explanation:

It is a case of competition.

Competition is a form of relationship between two or more organisms sharing a common resource with each organism fighting for a larger or all the shares of the resource.

In this case, the female mule deer is the resource being fighting over.

The correct answer is, therefore, competition.

he discipline of microbiology is intimately associated with biochemistry and genetics, because cells are both biochemical catalysts and genetic coding devices. The discipline of microbiology is intimately associated with biochemistry and genetics, because cells are both biochemical catalysts and genetic coding devices. True False

Answers

Answer:

True

Explanation:

The discipline of microbiology has to do with the study of microorganisms - tiny organisms that cannot be seen with the ordinary eyes except with the microscope.

Within the cells of microorganisms just as in every other cell, various biochemical processes take place in order to ensure the continued viability of the cells. Genetic information are also passed on from parent to daughter cells during the process of reproduction or cell division.

Hence, the field of microbiology is associated with both biochemistry and genetics.

two differences between a red blood cell and a typical animal cell?

Answers

By contrast, the red blood cells of mammals lack nuclei and other internal structures found in most animal cells. This simplification allows mammal red blood cells to carry more gas-transporting proteins and to squeeze through smaller blood vessels.

Why is it important to obtain the proper certification for certain fields of study in the healthcare field?
to prove that you are not an expert and are therefore not eligible for a job in health care
to prove that you acquired the skills and knowledge to perform a specific job in health care
to prove that you are capable of performing the job requirements for any job in health care
to prove that you are currently learning the skills necessary for a job in health care

Answers

Answer:

The correct answer is : to prove that you acquired the skills and knowledge to perform a specific job in health care

Explanation:

an official declaration or statement by authorized entity or institution that an individual is qualified and acquired knowledge, skill and expertise to do a particular job known as certification.

Proper certification is required in some field of the healthcare field or system to work. The main aim of the certification is to prove that an individual studied and practiced to acquired skill, knowledge and expertise to specific job in health care.

Thus, the correct answer is : to prove that you acquired the skills and knowledge to perform a specific job in health care

Answer:

to prove that you acquired the skills and knowledge to perform a specific job in health care. or B

Explanation:

edge 2020

what is a non-native species?

Answers

Answer:

on-native species can become such a common part of an environment, culture, and even diet that little thought is given to their geographic origin. For example, soybeans, kiwi fruit, wheat, honey bees, and all livestock except the American bison and the turkey are non-native species to North America.

Explanation:

6 Major events/discoveries by ancient Greece biology​

Answers

Water mill, Odometer, Alarm clock, Cartography, Olympics, Basis of geometry, earliest practice of medicine.

In the diagnostic statement "chronic allergic sinusitis due to animal dander," the modifying term(s) are: Select one:

Answers

In the diagnostic statement "Chronic allergic sinusitis due to animal dander",the modifying terms are;

CHRONIC AND ALLERGIC.

A diagnostic statement states the potential and actual health problem of a client. These client's problems are the ones the nurse or the person making the diagnosis can actually identify easily and also for which order and implement nursing interventions inorder to maintain the health status if the client,and to eliminate, prevent or rather reduce changes and alterations in the patient's health status.

So from the question given, the modifying terms from the diagnostic statement "Chronic Allergic Sinusitis" is Chronic and Allergic.

What are peptide bonds in protein how manny are there?
(includes diagram)

Answers

Answer:

2, Peptide Bonds. A peptide bond forms when the amino group of one amino acid bonds to the carboxyl group of another amino acid. A peptide is two or more amino acids joined together by peptide bonds, and a polypeptide is a chain of many amino acids. A protein contains one or more polypeptides.

Explanation:

The primary goal of modern systematics is construct 'family trees' that exhibit _________________ relationships Question 5 options: paraphyletic polyphyletic monophyletic

Answers

Answer:

Polyphyletic relationships .

Explanation:

The primary goal of modern systematics is construct 'family trees' that exhibit polyphyletic relationships because systemics deals with grouping or organising living organisms into groups base on biological meanings of function and polyphyletic relationships which is organising or grouping of organisms that don't have common ancestors Into different groups or unrelated organisms.

All organisms must be able to obtain nutrients from their environment. Which of the following terms describes the process of one organism killing another organism in order to obtain nutrients?

Answers

Answer:

Predator or predation means the same thing

Explanation:

a predator is an organism that kills another organism for food or nutrients

Based on data collected from many different sources, such as the Hubble telescope and The Wilkinson Microwave Anisotropy Probe (WMAP), scientists have been able to show that about 75% of the universe is composed of dark energy. Which of these theories becomes more credible knowing this information?

Answers

Answer:

dhdbfbf r r

Explanation:

bebebdbe eehd r r eebr r

I am the example of plants with woody stems. I am smaller than trees. My branches grow close to the ground. The rose and hibiscus plants are some examples of us. What am I?

Answers

Answer: I am a Shrub

Explanation:

A Shrub also called a bush  is medium-sized woody plant  with many stems which is shorter than a tree but taller than a  herb  having a range in height of about 6-10 metres  Shrubs are divided into two --- Deciduous and evergreen.

Many Shrubs are planted in  homes and gardens because of the  aesthetic value they provide,  including serving as wind breaks when many of them are planted together.Example of Shrubs include  Rose, jasmine,Hibiscus  tulsi, etc.

Which elements are the elements that form the basis of all living things
from the most primitive bacteria to the largest creatures on earth? *

A. Helium, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call
them, HHNOPS

B. Halogen, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call
them, HHNOPS

C. Gold, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call them,
GHNOPS

D. Carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call
them, CHNOPS

E. Carbon, helium, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call them,
CHNOPS

F. Silver, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call them,
SHNOPS

Answers

Answer:

E. Carbon, helium, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call them,

CHNOPS.

or

D. Carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call

them, CHNOPS

What are the characteristics of energy

Answers

Answer:

Energy is available in different forms

Energy can neither be created or be destroyed

Energy can be transformed from one form to another form

Energy can be stored

Explanation:

Which of the following causes day and night to occur?
Rotation of the Sun and Moon
Rotation of the Moon and stars
Rotation of the Earth on its axis
O Rotation of the other planets in the universe

Answers

The rotation of the Earth in its axis

Answer:

I agree with her because I took the test

Explanation:

Which statement best describes both insulin and glucagon?

Answers

Insulin and glucagon are released and both help lower glucose levels in the blood.

How many chromosomes does a zygote get from the father?
twenty-three
forty-six
thirteen
fifty

Answers

Answer:

23

Explanation:

Total chromosomes = 46

From which 23 from father and 23 from mother

They get 23 from their father. :D

The goal of basic science is:
A. to solve a specific problem.
B. to apply a new technology to an old problem.
C. to understand the world around us.
D. todesign a new product.

Answers

Answer:

C. because the common goal of basic science is to understand how things work, whether it is a cell, an organism, or a entire ecosystem. 

Answer:

to understand the world around us

Explanation:

How would extra carbon dioxide in a lake be removed

Answers

Answer:

The primary source of carbon dioxide in lake is decomposition of organic matter in the lake. This carbon dioxide is a huge problem for aquatic animals as they face problems during respiration.

Carbon dioxide in a lake can be removed  by chemical treatment using liming agents such as  sodium carbonate or hydrated lime and quicklime. These liming agents react with carbon dioxide and reduces carbon dioxide and  increases the pH and alkanity of the lake.

What is the cephalic phase? Group of answer choices earliest phase of digestion when the brain prepares the body in anticipation of food phase when the semidigested food leaves the stomach and slowly enters the small intestine phase when the majority of absorption occurs, primarily occurring in the small intestine final phase of digestion when the large intestine and rectum prepare the undigested components of food for elimination

Answers

Answer:

earliest phase of digestion in which the brain prepares the body in anticipation of food

Explanation:

The cephalic phase is the phase that occurs in the process of gastric secretion. The phase witnesses its initiation when the thought, smell, taste and sight of the food lingers in the mind before its consumption. The nerves sends the signals of the food from the cerebral cortex of the brain. Before the food is consumed or entered in the body, the cephalic phase takes place.

When the diaphragm contracts, the size of the thoracic cavity ________, the pressure inside the thoracic cavity ________, and air flows ________ the lungs.

Answers

Answer:

increases, drops, into

Explanation:

What causes amino acids to fold in different patterns to form different looking structures?

Answers

Answer:

Hydrogen bonding

Explanation:

Hydrogen bonding causes folding in different patterns of amino acids. This folding is responsible for the formation of different structures of proteins. This folding also helps in producing the secondary structure of protein. This hydrogen bond is present between amino groups and carboxyl groups which helps them in folding their structure in different patterns.

Katie put a flowering plant on her kitchen table. How would the flowers respond to light coming through the window?
A.Flower would lean toward the window
B.Flower would open facing away window
C.Flowers change color
D. flowers would begin to wilt

Answers

Answer:

A.

Explanation:

The flower would lean towards the window

Answer:

A

Explanation:

Plants use the sunlight to make energy which they use for photosynthesis. The plant will then bend towards the light to get as much of it as they can.

What type of graph is used to compare data? Group of answer choices bar graph scatter plot line graph pie chart

Answers

Answer: Scatter plot

Explanation: They compare variables in a data set, and this will help determine their relationship. Scatter plots indicate that if high and low variables on the graph coincide, there is a high possibility of correlation. This points normally fall along a line, which can either be a positive correlation or a negative correlation.    

Answer:

Circle graph

Explanation:

ways cross pollination happens naturally​

Answers

Answer:

Cross-pollination occurs when one type of flower pollinates another type which results in a hybrid plant.

It is simply  the process of applying pollen from one flower to the pistils of another flower and occurs in nature with the help of insects and wind

Explanation:

need answers 30 points

Answers

Answer:

c

Explanation:

the others dont use imagination

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