BRAINLYIST PLSSSS HURRY

BRAINLYIST PLSSSS HURRY

Answers

Answer 1

Answer:

A

Explanation:

only one type of atom= (PURE SUBSTANCE not mixture)

is atom chemically bonded to another atom? (NO- element, not compound)

Answer 2

Answer:. Maybe A. Im not sure.


Related Questions

in a flower sperm is made by the filament pistil ovary or anther

Answers

Answer:

It is the anther.

Explanation:

The anther is comparable to the make testis. These give rise tomale sperm cells.

True or False: If a planet were to stop moving relative to the sun, gravity would draw that planet into the sun.

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Answer:

True

Explanation:

i need help please i need help

Answers

Answer:

what do u need help with?

Explanation:

:P

Oxygen-poor blood flows out of the heart and into the lungs. Nutrients and oxygen are sent to other cells and parts of the body. The blood then returns to the heart to begin the process again. Which of the body's systems is the above process describing? Answers (A) -The skeletal system (B)-The digestive system (C)-The respiratory system (D)-The circulatory system

Answers

Answer:

(D)-The circulatory system

Explanation:

lol just did it

and pls give me thanks

The circulatory system is the system which consist of blood vessels, heart, and blood. The main function of this system is the transport of oxygen and minerals to all the cells of body. Thus, the correct option is D.

What is Circulatory System?

The circulatory system of body consists of all the blood vessels, blood and heart. In this system, blood travels through different blood vessels (arteries, veins, and capillaries) in all parts of the body.

The blood is the main fluid of the body that contains hemoglobin protein which is responsible for the transport of oxygen and carbon dioxide in the body. The blood exchanges gases at the surface of alveoli in the lungs and sends the blood to the heart, heart pumps the blood to all the cells of body.

Therefore, the correct option is D.

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There are ________________________ amendments to the Constitution.

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Answer:

27 amendments as of 2020

Explanation:

Hope i helped!

If energy is released, free energy must be what?

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Answer:

If energy is released during a chemical reaction, then the change in free energy from the conversion of the reactants to the products, signified as ΔG (delta G) will be a negative number.

Explanation:

Hope it helped!

Answer:

If energy is released during a chemical reaction, then the resulting value from the above equation will be a negative number. In other words, reactions that release energy have a ∆G < 0. A negative ∆G also means that the products of the reaction have less free energy than the reactants because they gave off some free energy during the reaction.

Explanation:

Work divided by time is the formula for- (W = T)
O Force
Work
Power
Energy

Answers

Answer:

Power

Explanation:

The formula work divided by time is the expression for finding the power consumed or expended by a body.

Power is  defined as the rate at which work is done.

    Power  = [tex]\frac{work done}{time taken}[/tex]  

 The unit is always expressed in watts and symbolized as W

Work done is force applied to move a body through a certain distance.

can someone please help me figure this out! due in 10 mins!! 20 POINTS!!!!

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NNN all this math gon make me act up

An elephant is a multicellular organism that weighs about 200 pounds at birth and can grow to weigh as much as 15,000 pounds. What increases as the elephant grows into an adult?

The collection of water in each cell


The amount of energy in its cells


The size of each body cell


The number of cells i

Answers

Answer:

D?

Explanation:

Im assuming the last one is "The number of cells in its body". If so, that is the right one.

Which THREE processes are involved when a multicellular organism reproduces sexually? a. mitosis b. fusion of gametes c. meiosis d. formation of gametes. Pls help yall!!!​

Answers

a, c , d hope this helps

Answer:

B C D

Explanation:

the mitosis it reproduces by its own it doesn't need another person or animal to reproduce.

why herbaceous plants drop their leaves in hot and dry weather while woody plants remain erect​

Answers

Answer:to let the leaves dry out

Explanation:

Nitrogen in the atmosphere exists in the form of _____.


NO2

NO3-

NH4+

N2

NH3

Answers

Answer:

N2

Explanation:

Although the atmosphere is mostly made up of nitrogen, it is in the form of a gas known as dinitrogen N2. Plants cannot use this form. Dinitrogen, or atmospheric nitrogen, can also be found in the soil. In addition to dinitrogen, other inorganic and organic forms exist in the soil as well.

In the atmosphere, nitrogen exists as a gas (N2)

Does anyone know if these are correct, I’m just asking because idk if they are correct or not.

Answers

Yes, these are correct

how are elemens and compouds related,

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Answer:

An element is a material that consists of a single type of atom. which Each atom type contains the same number of protons. the Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.

Explanation:

Which of these best describes the change in population of a country where
the total fertility rate exceeds the replacement fertility rate, without
considering immigration rate, emigration rate, or death rate?

Answers

Answer:

Rising

Explanation:

Picture proof

What is one way plants and animals are similar?

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They both have cells

Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base in
a mRNA strand, but during translation the mRNA strand still creates the same protein. Which type of mutation is
responsible for the change in the mRNA base?

A.silent

B.missense

C.nonsense

D.insertion

Answers

Answer:

A. Silent, The type of mutation responsible for changing a base in the mRNA strand, without changing the coding aminoacid or protein, is called a silent mutation.

Explanation:

In a silent mutation occurs the change of a nitrogenous base in one of the codons that encodes an aminoacid, without changing the aminoacid or altering the structure or function of the protein to be synthesized.

In this type of mutations the change of the base does not mean the change of the aminoacid, because some aminoacids can be coded with more than one codon. In the case of Leucine, the codons that encode it are CUU, CUC, CUG or CUA, so even if a base changes, the final protein will be the correct one.

For the other options:

Missense: the change of the base in the DNA chain implies the change of the codon in the mRNA and of the encoded aminoacid, in that way a structural and functional alteration of the synthesized protein occurs. Nonsense: the change in the nitrogenous base in the DNA leads to the coding of a termination codon, so that the protein is ultimately incomplete. Insertion: in this case there is the addition of more nitrogenous bases to the DNA chain, with respect to the original one.

Answer:

Silent

Explanation:

Edge 2021

Can someone help me write a short speech for this? I’ll give brainliest

Answers

Answer:

I sure hope this helps you!

Explanation:

Flying through the air I feel in need of food. Down under me is a beautiful ocean. On that oceans surface, there are lots of phytoplankton. Enough for me, enough for my family. This phytoplankton down under me has lived its life, eaten other organisms, and those organisms eat organisms. Now, is my turn. Tis the circle of life, they eat, I eat. Someday, something will eat me. Eating is very important to the living kind. It helps us stay healthy and alive. This, is my story of The Importance of Upwelling.

A lake in Minnesota was thriving with black bass and bluegill. These particular fish build nests on the sandy bottom of the lake. Now, ecologists are finding that over time a layer of humus has slowly been covering the pond. The ecologists are noting that the populations of black bass and bluegill are declining, and the fish that are able to make nests in humus are rising in numbers.
The ecologists can probably conclude that this event is an example of:
commensalism
parasitism
primary succession
succession

Answers

Answer:

Explanation:

https://quizizz.com/admin/quiz/5c9100e1202f89001c843569/stages-in-aquatic-ecological-succession

The event described, where a layer of humus covers the sandy bottom of the lake and affects the fish populations, is an example of succession.

Succession is the process of ecological change over time in a particular area. It involves a series of predictable and sequential changes in the composition and structure of an ecosystem.

In this case, the gradual accumulation of humus, a layer of decomposed organic matter, is altering the habitat conditions in the lake.

The decline in the populations of black bass and bluegill, which build nests on the sandy bottom, can be attributed to the changing habitat.

The humus layer is likely making it difficult or impossible for these fish to construct their nests. On the other hand, fish that are capable of making nests in humus, possibly adapted to this type of substrate, are increasing in numbers.

Therefore, the observed changes in fish populations and the altered habitat due to the accumulation of humus indicate a shift in the ecological community over time, which is a characteristic of succession.

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If a mother has an AB blood type and her daughter has BB blood type, The dad has
AA blood, the mailman has type AO blood and the neighbor has BO blood. Which one is really the father?
A.the dad
B.the mailman
C.the neighbor
D.none of them

Answers

Answer:

c. neighbor

Explanation:

half the mother, half by fathee

The neighbor.

The blood type of the child is decided by half of each parent’s blood type.

HELP PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Answers

Answer:

C

Explanation:

Where do the most powerful earthquakes on Earth occur?

Answers

Answer:

Most earthquakes happen at or near the boundaries between Earth's tectonic plates

Explanation:

because that's where there is usually a large concentration of faults. Some faults crack through the Earth because of the stress and strain of the moving plates.

If you don't know where the tectonic plates are there is a lot of maps out there :>

theres these platetechtonics at the bottom of some places at earth, but i dont know where.

Even though sunlight looks white, what is it really made up of?

Answers

Answer:

White light means your not missing any of the visible color spectrum, so all the colors.

Explanation:

Why is cooperative binding of hemoglobin adaptive?

Answers

For example, when an oxygen atom binds to one of hemoglobin's four binding sites, the affinity to oxygen of the three remaining available binding sites increases; i.e. oxygen is more likely to bind to a hemoglobin bound to one oxygen than to an unbound hemoglobin.

Which of these Earth spheres interacts with coral reefs to cause coral bleaching?

Atmosphere
Cryosphere
Geosphere
Hydrosphere

Answers

I think it’s atmosphere but don’t hold me to it I know for sure it’s no Hydrosphere

Answer: Atmosphere

Took the test

IN YOUR OWN WORDS explain how cell differentiation creates the different cells in a multicellular organism.

Answers

Answer:

A multicellular organism develops from a single cell (the zygote) into a ... tissue and organ development, and cell differentiation (gaining a final cell type identity). ... To function correctly, that body needs well-defined axes (such as head vs. tail). ... Mature cell types of the body, like neurons and liver cells, express different sets

Explanation:

why does an ecosystem have a carrying capacity?​

Answers

Ecosystem has a carrying capacity Because is limited

1. The chemical equation for photosynthesis is shown below is incomplete
6H20 + ______________ energy C6 H12 O6 + ________________
Plant pigment
a) Complete the equation in either all words or all symbols.
b) Name the plant pigment necessary for this reaction
2.

Name the tissues labelled A………………….., B………………… and C…………………..(3M)
3. Complete the table by matching each of the described functions to one of the leaf parts as shown in above diagram (4M)
Description of function Leaf part
Main region for photosynthesis. Contain
many chloroplast to trap light energy.
Cells are loosely packed. Air spaces between cells allow gaseous exchange.
Thin and transparent layer that allows light to pass through.
Water vapor passes out during transpiration.
If question 2 is not answerable or if the picture is missing then leave it

Answers

Answer:

Explanation:

C2+c4=83

Carbon plus oxygen

If a population has low death rates and high life expectancy which end of the population pyramid will increase?

Answers

Answer: "Constrictive" pyramid

[ I hope my answer is correct]

Who is credited with creating the first accurate model of DNA? Rosalind Franklin Friedrich Miescher James Watson and Francis Crick Marshall Nirenberg and Heinrich Matthaei

Answers

Answer:

The answer is C

Explanation:

The persons credited by accurate model of DNA are James Watson and Francis Crick.

What is model of DNA?

The molecular models of DNA structures are representations of the molecular geometry and topology of deoxyribonucleic acid (DNA).

First accurate model of DNA

The first accurate model of DNA also known as 3-dimensional double helix structure of DNA, was correctly elucidated by James Watson and Francis Crick.

Thus, the persons credited by accurate model of DNA are James Watson and Francis Crick.

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