BIOLOGY MIDDLE SCHOOL

-. In which phylum does a coelom first appear?a. Annelida
b. Mollusca
c. Nemertea
d. Phoronida​

Answers

Answer 1
Answer:

Answer:

The answer is a. Annelida

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Que es la contaminacion del aire

Answers

la presencia o introducción en el aire de una sustancia que tiene efectos nocivos o tóxicos.
the presence in or introduction into the air of a substance which has harmful or poisonous effects.

Help please!What is the source of the carbon atoms in a plant's cells?
A)
they were created as the plant grew
B)
the Sun
C)
water molecules
D)
the environment

Answers

Answer:B. The Sun

Explanation:

Final answer:

The carbon atoms in plant cells derive from carbon dioxide in the environment through the process of photosynthesis, where it is converted into glucose and used to build cells.

Explanation:

The carbon atoms in a plant's cells primarily come from the environment, particularly from carbon dioxide in the atmosphere. This is absorbed by the plant through a process known as photosynthesis. In photosynthesis, plants use sunlight to convert carbon dioxide and water into glucose - a type of sugar - and oxygen. It's this glucose that provides the carbon atoms for the construction of plant cells. Thus, the correct answer to your question is D) the environment.

Learn more about Photosynthesis here:

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List two non-living (abiotic) forms of carbon in the cycle and give the chemical formula of each.

Answers

Two abiotic forms of carbon are CARBON DIOXIDE AND METHANE.
The element carbon is continuously been recycled in nature. The abiotic components of the carbon cycle refers to the non living part of the carbon cycle which has influence on the living part. Methane is a type of fossil fuel whose major component is carbon.
The chemical formula of carbon dioxide is CO2 while that of methane is CH4.

How does blood help maintain homeostasis in the body?

Answers

The blood is the means by which circulating several fundamental chemicals to the body balance. Consumptiom metabolism, control and structural depend on the exchange of various substances with the environment, like oxygen, carbon dioxide, glucose, amino acids and nucleic acids. Is the blood these exchanges are guaranteed. In addition, several defense cells of the organism (macrophages and lymphocytes) are present stop are essential and in the bloodstream for homeostasis. These and many other many defined do make blood a factor of great importance for the living.

hope this helps!

Name the process that causes water to flow into organisms

Answers

Osmosis is a passive transport which moves water molecules from higher to lower gradient.
Osmosis then is the movement of water particles from which has water and from which has not and to provide it with the sufficient H2O. 

The concentration of salt in water affects the rate of osmosis because it will determine how much water should be transported or excreted or to be taken in. The cellular process is keen to the salt concentration of its system thus making sure to maintain balance between the salt concentration the right amount of water must also be in its area of release for any expected occurences.

____ energy gets converted to ____ energy through photosynthesis.A.Radiant; chemical
B.Chemical; radiant
C.Radiant; mechanical
D.Chemical; mechanical

Answers

A, Radiant energy through photosynthesis turns into energy.
A:because the suns light is radiant and then it turns to chemical energy to make gluecose a simple sugar that's the plants food
the chemical formula for gluecose is
C6H1206
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