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Answer 1

Answer: Okay, so overall, the unicellular (presumably bacterial) organisms are going to be the most similar when talking about genetic material as the genetic material doesn't have to code for as many proteins as it would in a multicellular organism. For example, in humans, our genome codes for every protein in every cell in every tissue in every organ in every system in your body. However, unicellular organisms have to code far less as they have a very limited amount of proteins that they actually have to form. You'll have some differentiation when it comes to diet, but overall, the answer should be organisms A and C.

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3. Which of the following effects do the sun and moon have on tides when they are nearly in line with Earth during a new moon? (1 point) They produce an extremely low tide. They produce an extremely high tide. They produce a tide with the greatest difference between consecutive low and high tides, or a spring tide. They produce a tide with the least difference between consecutive low and high tides, or a neap tide.

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The sun and the moon has an effect on the tides when they are nearly in line with Earth during a new moon. This effect is they produce a tide with the greatest difference between consecutive low and high tides, or a spring tide.

Fish are classified as vertebrates because they havea. a brain.
b. a backbone.
c. two germ layers.
d. bilateral symmetry.

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B, a backbone.

Not A, because we know some species that aren't vertebrates and have a brain.
C. two germ layers, isn't a characteristic specific to vertebrates.
d. bilateral symmetry, no for the same reasons as A.

the answer is b) a backbone

The diagrams below illustrate models of various chemical compounds..How do the test variables (independent variables) and outcome variables (dependent variables) in an experiment compare?
A. The outcome variable (dependent variable) controls the test variable (independent variable).
B. The test variable (independent variable) controls the outcome variable (dependent variable).
C. The test variable (independent variable) and outcome variable (dependent variable) have no affect on each other.
D. The test variables (independent variables) and outcome variables (dependent variables) are the same things.

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Answer: B

Explanation:

The independent variable is the experimenter so it changes and controls the dependent variable because it is assumed that the dependent variable gets a direcr effect from the independent variable.

Natural selection is based on the idea that as an environment changes, an individual’s genetic makeup will change suddenly to suit the new environment.

Answers

Consider the statement as True or False

Answer: True

Explanation:

Natural selection can be defined as the phenomenon by which the environment changes and the to fit into the environment the genetic makeup of the organism changes in order to suit into the changing environment.

The organism that is fit to suit into the changing environment is favored and the organism that does not fits into the environment dies.

So, natural selection can be said as survival of the fittest.

yes it is right because if we take example of viruses and germs .. new germs and viruses are much modified as compared to old ages because they adopted the ways they can escape from the immunity.. they have an adoption to transmit their DNA material ,also they can take protein coat of host because of which host's immunity cells cannot recognize germs as foriegn particle..and in this way germs and viruses remain for a long time in body due to the adoptations according to age and environment..

Which of the following is true about epithelia? Which of the following is true about epithelia? Pseudostratified epithelia are commonly keratinized. Stratified epithelia are associated with filtration. Endothelium provides a slick surface lining all hollow cardiovascular organs. Simple epithelia are commonly found in areas of high abrasion.

Answers

Answer:

Endothelium provides a slick surface lining all hollow cardiovascular organs.

Explanation:

Endothelium is a layer made of cells that lines the interior surface of the entire circulatory system from heart to the capillaries. It forms the interface between the blood in the lumen and the vessel wall.

It is a single celled thin layer of squamous cells. It is involved in fluid filtration, maintaining the the blood vessel tone, homeostasis, hormone trafficking and neutrophil recruitment. It is of mesodermal origin. It is aligned in the direction of fluid flow.

Final answer:

Epithelia are layers of cells that line body surfaces and organs. Different types of epithelia have specific functions and structures. Simple columnar epithelium, stratified squamous epithelium, pseudostratified columnar epithelium, and endothelium are all examples of epithelial tissues.

Explanation:

Epithelia are layers of cells that line body surfaces and organs.

Simple columnar epithelium is a single layer of rectangular cells, commonly found in areas of absorption and secretion.

Stratified squamous epithelium is several layers of squamous cells, providing protection against abrasion. Pseudostratified columnar epithelium appears layered but is actually a single layer of cells, often found in the respiratory system.

Endothelium is a type of epithelium that lines blood vessels, providing a smooth surface and allowing for the movement of blood cells.

Learn more about Epithelial tissues here:

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How can a dinosaur become a fossil ?

Answers

Answer: By dying in a place that was heavily preserved

Explanation:

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