Help me ASAP please

Answer:

It is when things get contaminated like water, soil, and air and it can be harmful and poisonous.

Answer:

physical process of atoms or molecules moving apart within a gas or liquid.

Explanation:

Answer:

The act of a solvent going from high concentration gradient to low concentration gradient

Explanation:

I had this lesson last month

Answer:

he becomes arrow dynamic making it easier to go faster because the air is flowing over his helmet think of it like a jet and how thier streamlined

Answer:

true

Explanation:

on edg

Small aquatic organisms, such as coral, are the producers of the ocean. Thus, the given statement is true.

The term aquatic organism has been defined as the the organism lives in the water is known as the aquatic organism. The corals are essential part of the marine ecosystems. They are feeding upon zooplankton, but also their polyps get sugar that is produced by the algae living on them. Also, the corals provide much needed shelter for lots of marine animals, but also are on the menu of some, like the starfish for example.

Limestone is in form of sedimentary rock that is made up of skeletal fragments of marine organisms such as forams, corals and molluscs. However, limestone is formed from the shell of an organisms because the shell is made up of calcite or aragonite.

Due to the presence of nutrients that swipe from ocean to the shores along with tides which makes predators to be present along the shores which ultimately pose a threat to coastal aquatic organisms.

Therefore, Small aquatic organisms, such as coral, are the producers of the ocean. Thus, the given statement is true.

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Answer:

1

Explanation:

Answer:

B.

Explanation:

The organ system is composed of multiple organs that work together to carry out a function.

Answer:

B

Explanation:

I took the test 1 hours ago

Answer:

the first one.

Explanation:

Answer:

1.The human digestive system.

2.A .mouth

b.oesophagus

C stomach

d.pancreas

e.small intestine(ileum)

f.rectum

g.appendix

h.liver

3.

4.in the small intestine.

5.

6.

Answer:

this is your answer.look it once.

Answer:

no

Explanation:

Human blood is red because of the protein hemoglobin. Hemoglobin contains a red-coloured compound called heme that’s important for carrying oxygen through your bloodstream

Sometimes blood can look blue through our skin, but its never blue. the reason we see blue is because blue light doesn't go as deep into kin as red. If the blood vessel is  deep, your eyes see more blue than red  light due to the blood’s absorption of red wavelengths.

Answer:

Radiometric dating methods

Explanation:

Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.

The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.

The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.

Answer:

by dating the age of intrusions and extrusions near a sedimentary rock layer

Explanation:

got it right on the assighment

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Answer:

D

Explanation:

I am just guessing so please don't hurt me!

Have a great day:)

Answer:

1. Pollen tube

2. Style

3. Ovary

Explanation:

This process is describing the process of POLLINATION, which is the transfer of pollen grains from the anther of a male flower (androecium) to the stigma of the female flower (gymnoecium). After pollination i.e. the pollen has landed on the sticky stigma, the pollen grows out a tube called POLLEN TUBE.

The pollen tube extends through the STYLE of the female flower called PISTIL to the OVARY. The ovary is the reproductive part of the female flower that produces the ovules, which the sperm in the pollen is about to fertilize.

The answer is dominant

Answer:

Here u go

Explanation:

black hole=a collapsed star that does not let light escape

white dwarf=an old, very dense, hot star that is cooling

nebula=may collapse to form a star

red giant=a star that has expanded and cooled

Matching of each body to its best descriptions is given below:

A star may be defined as any huge self-luminous cosmic body of gas that shines by radiation emanated from its internal energy sources.

These celestial bodies may provide some of the foundations and understanding of the mythologies, the system of religion, derivation of the earth's surface, etc.

Therefore, the matching of each body to its best descriptions are described above.

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Explanation:

The 3 different types are messenger, transfer, and ribosomal RNA.

Answer:

Of the many types of RNA, the three most well-known and most commonly studied are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA), which are present in all organisms.

Explanation:

I got it right on the assignment.

Answer: im 90% sure its (d)

According to the question option "D" Nucleus is found in the cells of fungi but NOT of archaebacteria.

Fungi cell walls usually are constructed of chitin whereas Eubacteria cell walls have peptidoglycan.

Archaebacteria do not have either substance, although the cell walls of some archaebacteria contain a substance similar to peptidoglycan.

Thus, the option "D" Nucleus is found in the cells of fungi but NOT of archaebacteria.

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Answer:

a. hypotheses of scientific experiments

Explanation:

Answer: Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.

Answer:

hope this helps

Explanation:

During the passive transport, the particles move from a higher concentration to a lower concentration without the need for energy expenditure or spending. The passive transport is seen in the cell too.

In the cell, different types of transport are seen, such as active transport and passive transport; in active transport, energy is used, while energy is not used in passive transport. The movement of molecules across the cell plasma membrane is important because it allows cells to get rid of unwanted molecules. Passive transport does not require energy, and many nonpolar small molecules and gases can cross the lipid plasma membrane barrier and go into and out of the cell while, in this passive transport process, they save the cell's energy.

Hence, during the passive transport, the particles move from a higher concentration to a lower concentration without the need for energy expenditure or spending.

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Answer:

Introns are crucial because the protein repertoire or variety is greatly enhanced by alternative splicing in which introns take partly important roles. Alternative splicing is a controlled molecular mechanism producing multiple variant proteins from a single gene in a eukaryotic cell.

Explanation:

Answer: Centrioles

Explanation:

Answer:

It's not

Explanation:

Answer:

A is the one

Explanation:

because if you look at it they come from groups and stuff

Answer:

Classification

Explanation:

Because that is classifying things based on their similarities

Answer:

Non-zero digits are always significant. Any zeros between two non-zero digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant.

Explanation:

Answer:

A

Explanation:

if you calculate 6 m/s2 and 5 kg you get 10N

but you have to round and you get 11n

Answer: 30

Explanation:

5 x 6 = 30

amino

acid

Explanation:

thats amino acid

Answer: Mitochondria

Explanation: