Which of the following are molecules? (Select all that apply.)
K
MgCl2
H2
Mg
Grade -5-

Answers

Answer 1

Answer:

MgCI2

H2

Explanation:

any combination of elements is a molecule


Related Questions

Organic phosphate is taken up by producers during photosynthesis and released by cellular respiration.

True or false ?

Answers

Answer:

true

Explanation:

pa brainliest po please

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Why must everything but the
independent variable stay constant?
A. since a graph can only hold one variable
B. each group should be completely different to do an
experiment
C. because you can only record information for one
experimental group
D. because with too many variables you can't
determine what caused the

Answers

i believe the answer is b! :) lmk if it helped

The independent variable should stay constant because  each group should be completely different to do an experiment while it is being conducted.

What are variables?

The variables are defined as any characteristics, number or quantity which can be measured . They can also be called as a data item . They are called as variables because they can vary and can have variety of values.

There are three types of variables 1) manipulated variable where in a condition is specified, 2) responding variable which is dependent on manipulated variable 3)controlled variables which does not change

Example of manipulated variables are number of hours spent by a student studying , that of responding variable is result of a student and temperature is an example of controlled variable.

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6. Challenge: Based on the weathering patterns, guess the rock type shown in each photo.


Answers

What are the photos?

Is the circled karyotype a male or female?


female


male

Answers

Answer: A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.

Explanation:

A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.


Explanation:

ln humans, red green color blindness is a sex-linked recessive trait. If a man and a woman produce a color blind son, which of the following must be true?

a. The father is color blind.
b. Both parents carry the allele for color blindness.
c. Neither parent carries the allele for color blindness.
d. The father carries the allele for color blindness.
e. The mother carries the allele for color blindness.​

Answers

B is the answer
If it’s a recessive allele 1 parent isn’t enough, both parents have to have the recessive allele, and even then it’s a small chance. Hope this helped ^^

If a man and a woman produce a color blind son then both parents carry

the allele for color blindness.

A trait could either be:

DominantRecessive

What is a Recessive trait?

A recessive trait is usually expressed when there is the presence of two

recessive alleles in an individual or organism. A dominant  trait on the other

hand can be expressed with the organism having only one dominant allele

In this scenario, the red green color is a recessive trait

and the offspring produced is color blind which basically means that both

parents carry the allele for color blindness.

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Which type of resources form much more slowly than we use them? A: reusable B: renewable C: nonreusable D: nonrenewable

Answers

nonrenewable resources are used commonly and are quickly running out, and it takes longer for us to form more of these.

The type of resources from much more slowly than we use them is non-renewable resource. The correct option is D.

What are nonrenewable resources?

A non-renewable resource is a natural resource that cannot be replaced quickly enough by natural means to keep up with consumption.

Carbon-based fossil fuels are one example. With the help of heat and pressure, the original organic matter is converted into a fuel such as oil or gas.

Nonrenewable energy sources are not only affecting our planet's atmosphere by increasing greenhouse gas emissions.

Coal and oil combustion emits particles that can pollute the air, water, and land. Some of these particles are captured and stored, but many are released into the atmosphere.

The use of fossil fuels also disrupts Earth's "carbon budget," which balances carbon in the ocean, earth, and atmosphere.

Thus, the correct option is D.

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the color of flowers are due to the presence of pigments known as:A)​

Answers

Answer:

chlorophyll

Explanation:

it is due chlorophyll

Is that the right answer

Answers

Answer:

actually your answer is supposed to be true because this all actually happend before world war happend so your answer should be true

Explanation:

if you look you answerd false when your answer should actually be True

For which one of the following functions is parenchyma tissue particularly suited?
A. Reinforcement and support C. Elasticity
B. Exchange of gases D. Formation or root hairs

Answers

Reinforcement and support

parenchyma, in plants, tissue typically composed of living cells that are thin-walled, unspecialized in structure, and therefore adaptable, with differentiation, to various functions. The cells are found in many places throughout plant bodies and, given that they are alive, are actively involved in photosynthesis, secretion, food storage, and other activities of plant life. Parenchyma is one of the three main types of ground, or fundamental, tissue in plants, together with sclerenchyma (dead support tissues with thick walls) and collenchyma (living support tissues with irregular walls).

Which of the following statements is false?

*Pressure on the sciatic nerve causes carpal tunnel.
The "funny bone" is really a nerve.
All spinal nerves are mixed nerves.
A dermatome can be formed by a spinal nerve or cranial nerve.

Answers

Answer:

a. Pressure on the sciatic nerve causes carpal tunnel.

Explanation: is the correct answer that is the false statement

Blood vessel diameter fluctuates between being constricted and being dilated. This is the primary contributor to blood pressure. In order for blood vessels (arterioles) to maintain a steady pressure, there must be a prolonged presence of what ion in the smooth muscle cell's cytosol

Answers

In order for blood vessels to maintain a steady pressure, there must be a prolonged presence of CALCIUM ions in the smooth muscle cell's cytosol. This ion initiates smooth muscle contraction.

Arterioles are blood vessels that have muscular walls consisting of one or two layers of smooth muscle cells.

Calcium (Ca2+) ions start the contraction of the smooth muscle cells by binding to calmodulin protein and thereby activating myosin.

In consequence, Ca2+ ions act as a secondary messenger that activates calmodulin, stimulating the phosphorylation of the myosin light chain and thus triggering muscle contraction.

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How to find recombination frequency.

Answers

Answer:

A test cross is required

13. why might amplification of a signal be important during transduction?

a. the signal needs to be repeated several times before a cell can respond

b. it reduces signal errors during transduction

c. the signal is louder for the cell

d. more molecules can be activated in fewer steps

e. the signal is to small for the cell to recognize otherwise​

Answers

Answer:

b ) it reduces signal errors during tranduction

HELPPPPPPPPPPPPPPPPPPPP
A: equilateral
B: isosceles
C: right
D: scalene

Answers

Answer:

B.Isosceles

Explanation:

Mark me as brainliest

Answer:

B. Isosceles

Hope this helps :)

please helppp!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

B (nematocysts)

Explanation:

A nematocyst is a long, thin, coiled stinger. It has a barb that may inject poison. These tiny poison "darts" are propelled out of special cells. They are used to attack prey or defend against predators.

Have an awesome day friend! :D

Answer:

It is B the nematocysts they can defend against predators.

Which of the following choices best describes ‘ovulation?'
A. An egg is released from the ovary.
B. An embryo sinks into the uterus lining.
C. The sperm and egg nuclei fuse.
D. The ejection of sperm through the penis.

Answers

Answer:

An egg is released from the ovary

Ovulation is a crucial process in the female reproductive system, occurring as a part of the menstrual cycle. It involves the release of a mature egg (ovum) from one of the ovaries. The correct option is A. An egg is released from the ovary.

1. **Menstrual Cycle**: The menstrual cycle is the regular hormonal cycle that occurs in women of reproductive age. It typically lasts around 28 days, although the length can vary from woman to woman. The cycle is divided into different phases, with ovulation occurring during one specific phase.

2. **Follicular Phase**: The menstrual cycle begins with the follicular phase, where hormones, primarily follicle-stimulating hormone (FSH) and luteinizing hormone (LH), are released by the pituitary gland. These hormones stimulate the growth and maturation of follicles in the ovaries.

3. **Ovarian Follicles**: Within the ovaries, multiple tiny sacs called ovarian follicles contain immature eggs. Each month, one of these follicles becomes dominant and continues to grow while others degenerate.

4. **Mature Follicle Development**: As the dominant follicle grows, it secretes estrogen, a hormone that prepares the uterus for a potential pregnancy. The rising estrogen levels also trigger a surge in luteinizing hormone (LH) around the middle of the menstrual cycle.

5. **Ovulation**: The LH surge triggers the final stage of ovulation. It causes the mature follicle to rupture and release the mature egg from the ovary. The egg is swept into the fallopian tube by tiny hair-like structures called cilia.

6. **Fertilization**: The released egg remains viable for about 12-24 hours. If sexual intercourse occurs during this time and sperm are present in the fallopian tube, fertilization may occur. Fertilization is the process where the sperm penetrates the egg, resulting in the formation of a zygote (fertilized egg).

7. **Implantation or Menstruation**: If the egg is not fertilized, it will eventually disintegrate, and hormone levels will drop. This leads to the shedding of the uterine lining, causing menstruation to occur. On the other hand, if fertilization occurs, the resulting zygote will undergo several divisions and travel down the fallopian tube to the uterus, where it may implant into the uterine lining and develop into a pregnancy.

Ovulation is a crucial event in the female reproductive cycle, marking the release of a potential egg for fertilization. It is a key factor in determining fertility and the ability to conceive a child.

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What caused the foam in this experiment?

Answers

Answer:

the yeast

Explanation:

Which is not a major factor that influences the strength of a rock?



time



rock type



age of rock



temperature

Answers

structure and texture

an organism always produces offspring that are identical to the parent when self-fertilized. this organism must be

Answers

An organism that produces offspring identical to the parent when self-fertilized is known as a true-breeding organism. It is also called purebred.

A true-breeding or purebred is a type of organism that always passes specific phenotypic traits to its offspring.

A true-breeding must be homo-zygous (i.e., purebred) to pass certain phenotypic features to offspring.

True breeding organisms are very useful in conventional breeding techniques to pass desirable phenotypic traits to offspring.

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The main characteristic of the architecture of all plant-pollinator networks on Earth is ________.

Answers

Answer:

The main characteristic of plant-pollination networks is their nested designs.

A chromosomes contains ________ and ___________organic molecule​

Answers

Answer:

the answer is

Explanation:

DNA and RNA

How does pyruvate enter the mitochondrion.

Answers

Answer:

Pyruvate is a charged molecule, so in eukaryotic cells it must enter the mitochondrion via active transport, with the help of a transport protein. ... Pyruvate is broken down into three CO2 molecules, including the molecule of CO2 released during the conversion of pyruvate to acetyl CoA

Hope it helps :D

a
The flu occurs when someone is infected with a specific virus. You may know you're sick when you have a fever, a
body temperature above 98.6° F. Based on your understanding of the reading passage, how do you think a fever
would affect enzymes and chemical reactions in your body? Would it decrease, increase, or have no effect on
them? Explain your answer.
Include one paragraph in your answer.

Answers

Well the flu is a virus. Knowing it’s a virus we know they multiply by entering a cell and passing over there rna then converted to be dna and creating other versions of them selfs until cytolysis occurs meaning the cell explodes with these new viruses and do the same with other cells. Since these dna conventions to create protein body parts of virus means there’s a increase in chemical reactions in the body and enzyme production. Also since your body has an immune system it can sense these antigens from the virus’s and cause increase in certain white blood cells to come in and kill these viruses and cells. In essence chemical and enzyme reactions increase. To survive.

If You Had Three Wishes, What Would You Wish For?

For my first wish i would wish to have endless wishes then i will wish whatever i want

Answers

Answer:

Both we have the same idea. I also have thought about that before. lol

Answer:

total freedom, Be 21 forever(lol) and thats it

Explanation:

Bryant Vaughn first worked for United States government as a forensic botanist in 1975, _____ after pollen analysis was first used by Lennart von Post.

Answers

Bryant Vaughn first worked for the USA government as a forensic botanist in 1975, 59 YEARS after pollen analysis was first used by Lennart von Post. L. von Post is considered the father of palynology.

Palynology refers to the discipline that studies plant pollen in both living and fossil forms of life.

Lennart von Post was a naturalist and geologist who is generally regarded as the father of modern palynology.

L. von Post published in 1916 a quantitative analysis of pollen grains entitled “Forest-tree pollen in south-Swedish peat layers”.

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Which one of the following parasites affect all domestic animals?
A.Ticks. B. Mites
C. Tsetse fly D. Fleas​

Answers

Answer:

D fleas affect all animals

Answer:

D

Explanation:

FLEA THE NAME ORDER IS SIPHONAPTERA

How many mRNA codons are needed to make a protein that contains 5 amino acids?
a. 3
b. 5
c. 10
d. 12

Answers

Answer:

A.3

Explanation:

I got no explanation for this only thing i know is that 3 codes are needed as three basic is one codons maybe

Should farm animals we eat be genetically modified?

Answers

Answer:

GE animals may be disease resistant, parasite resistant, and withstand stress. The beneficial trait can likely improve their well being because they will be more productive.

Explanation:

Chitin is all of the following EXCEPT ________. Found in insect and crustacean shells Composed of N-acetylglucosamine subunits Composed of linear fibrils like cellulose Found in plant cell walls

Answers

Answer:

Found in plant cell walls

Chitin is all of the following except it is found in the plant cell wall. So, the correct option is D.

What do you mean by Cell wall?

It is the outermost layer of a cell that can be tough, flexible, and sometimes rigid. Its function is to provide structural support and protection to the complete cell.

The Cell-wall of fungi is made up of chitin. It is composed of N-acetylglucosamine subunits. It is also composed of linear fibrils like cellulose. Mostly, found in insect and crustacean shells.

Therefore, Chitin is all of the following except it is found in the plant cell wall.

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Mrs. W. is 68 years old and lives alone. She moves very slowly and does not respond verbally to what others say. She sometimes mumbles to herself. Her face is expressionless. She seems confused by her surroundings. She is accompanied by her daughter, who is highly observant and an accurate reporter of Mrs. W.’s past medical and psychosocial history. What possible Noncognitive Disorders could Mrs. W have?

Answers

The non-cognitive disturbances that Mrs. W. could have related to some dementia are psychosis, personality change, lack of rhythm, deficit in emotional responses, mental confusion.

It is important that the patient in these conditions is continuously assisted, to avoid situations that put her safety at risk.

An elderly woman like Mrs. W, who already has significant evolution of non-cognitive disorders, must have an effective medical apparatus and a tutor willing to help with care and daily activities.

Ideally, caregivers should develop optimal communication skills for patients with these disorders, such as a calm and gentle tone, provide the individual with a peaceful environment without too much noise or other disturbances, as well as being considerate and not neglecting the individual's needs.

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Foster consumes about 350 g of protein daily, mostly in the form of meat and amino acid supplements. He does not use vitamin/mineral supplements, and he eats very few fruits, vegetables, and grains. Based on this information, Foster's diet lacks _______ saspppppppppppppppooooooooooooooooooooooooooooooooooooooooooooooooooooooooo which type of spectra would be produced by a hydrogen lamp? fjjhtfgffcvhtcxtvhjndghcgxrh -5 1/5 + 3.7 + 5 1/10 how to solve which is the correct algebraic expression giving brainliest How did Americans change their environment in order to improve transportation? 30233088 in index form TKeyah puts salt in ice water and then in boiling water to see which will dissolve faster.Which dissolving rate factor is she testing in these tests? Axons from higher brain centers form motor tracts that descend from the brain into the white matter of the spinal cord and then synapse with somatic motor neurons in the ____________. How do I do this pls help find the inverse for the function f(x)= 14-3x/8-2x How to divide imaginary numbers. A researcher claims that the epinephrine signaling pathway controls a catabolic process in muscle cells. Which of the following statements best helps justify the researchers claim?. please help!im confused the bus to Leeds departs every 36 mins and the bus to Manchester leaves every 45 mins they leave the station at 10am one morning what is the next time they will leave at the same time Based on the graph, what conclusion can be drawn about trade between the United States and China? The United States has a trade surplus with China. Chinas economy is declining, which has harmed trade. The United States has a trade deficit with China. Chinas economy is improving, which has helped trade. HELPPPP!! question: uppose you put $150 in the bank 1 year ago. A sign at the bank reads 2% simple annual interest.Fill in the values to complete the table.45 points!!! help me please importance of toilet for speech in english Circle As circumference is 3 times the value of Circle Bs Area. Find Circle Ba radius. Circle As diameter is 27.Formulas = A=(pi)r^2 and C=(2pi)r^2Leave it in terms of pi if you do get pi left.(Pi) = pi symbol (Brainly wont let me use it.)Thank you if you do answer it, I will give Brainlyist and a lot of pints!!