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3 years ago

Which of the following describes the relationship between genes and

Biology

1 answer:

Roman55 [17]3 years ago

4 0

Answer:

Genes are special sequences of nucleic acids found on chromosomes.

Explanation:

A single DNA molecule is a chromosome. A gene is a certain chromosome region of DNA.

All cells of the body are genetically the same, but cells are different from others because specific gene sets are expressed. Different cells, therefore express different genes, which enable them to perform a specific function.

The deoxyribonucleic (DNA) genes are segments that contain a code for a certain protein that works in one or several cell types in the body. Chromosomes are cellular structures that contain the genes of a person. Genes that are in the cellular nucleus are contained in chromosomes.

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Planarians lack dedicated respiratory and circulatory systems. This deficiency does not cause a problem because ________.

ZanzabumX [31]

Answer:

Most cells within planarians tend to be very close to their gastrovascular cavity, in addition to their external environments. Also, planarians have the ability for oxygen and carbon dioxide to diffuse through the cells on their body walls: this makes it unnecessary for these varieties of flatworms to need a dedicated bodily system.

I think the deficiency of dedicated respiratory and circulatory systems in Planarians does not cause a problem because none of their cells are far removed from the gastrovascular cavity or from the external environment. Planarians are free-living flatworms and form the class Turbellarians in the Phylum Platyhelminthes. Flatworms have three tissue layers, that is the ectoderm, mesoderm, and endoderm.

hope this helps!!!!!....

Explanation:

6 0

3 years ago

QUESTION 2 PLEASE I BEG U

Alex787 [66]

Look at the clutch size. There seems to be no patterns between the amount of clutch size and the survival rate because if you have a low survival rate, you can have either a high or low clutch size based on the info that is given

3 0

3 years ago

What does the mesoderm turn into?

bazaltina [42]

Answer:

B. Muscle

Explanation:

During embryonic development, three germ layers start to form in order to eventually go through the process of differentiation. These three layers are: the ectoderm - outer layer -, the mesoderm - middle layer -, and the endoderm - inner layer -.

The mesoderm gives rise to the both skeletal and smooth muscles, blood vessels, heart muscle, cartilage and joints, bone, cartilage, joints, connective tissue, blood cells, amongst other tissues.

7 0

3 years ago

What does it mean for an environment to be isotonic?(1 point)

HACTEHA [7]

A solution to be isotonic refers to b) The concentration of solute in the environment and the concentration inside the cell are at equilibrium.

Isotonic solution is the solution that have equal concentration of solute on both sides of the solution separated by a membrane.
If a cell is kept in an isotonic solution that means the concentration of the solute inside the cell is the same as that of the outside then the movement of solvent does not occur between the cell and the external environment.
The osmotic pressure inside the cell and outside the cell across the semipermeable membrane of the cell becomes the same due to equal concentration of the solute on each side.

0.9% normal saline is an example of isotonic solution.

Learn more about isotonic solution:

brainly.com/question/17211905

4 0

3 years ago

All living things must get and use

Sveta_85 [38]

Answer:

A. metabolism

Explanation:

Metabolism is the bodily process used to convert food into energy.

To survive, the body must use energy. Energy is important to perform daily tasks as big as moving and as small as undergoing mitosis. All of this energy comes from the food we eat.

Metabolism is a complex process that works to break down the calories within food and convert them into energy we can use.

6 0

2 years ago