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MA_775_DIABLO [31]
3 years ago
9

Birds feathers are modified scales

Biology
1 answer:
Alja [10]3 years ago
6 0

Answer:

<h3>The genes that caused scales to become feathers in the early ancestors of birds </h3>
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Which group is INCORRECTLY paired with its description?
amid [387]

Answer:

Red algae - acquired plastids by secondary endosymbiosis

Explanation:

Red algae are believed to have undergo a primary endosymbiosis event. Then a second endosymbiosis event created a large group known as heterokonts.  During the primary endosymbiosis event red algae acquire their plastids.

7 0
3 years ago
Blood plasma is filtered in the __________.
ziro4ka [17]

The Kidneys.

The plasma passes through the kidney where it is filtered, a special filtration unit called "glomeruli" and then excreted as a low molecular weighted product into the urine. The purpose of our urine is to secrete waste products from the body. So you can see how the glomerular filtration mechanism of the kidneys plays a major role in the function of our bodies. The primary function of our kidneys is to filter out all the "bad stuff" in lamest terms.


-Current Medical Student (College Level)

4 0
3 years ago
Many cells produce chemicals called _______, hormone-like substances that impact inflammation and reproduction.
Grace [21]

Answer:

vesicles

Explanation:

4 0
3 years ago
The picture shows an organ system in the human body. What do these organs do in the human body?
olga2289 [7]

The organs represented in the image are the Brain, nerve, and spinal cords that monitor and react to changes in the body and its environment.

<h3>What are Organs?</h3>

Organs may be defined as an assemblage of tissues that structurally construct an operational unit specialized to accomplish a distinct operation and functions in the body of a living organism.

The nerves function in sending and receiving signals to the brain from external stimuli. They give the perception of feeling pain, relaxation, stress, etc to the brain according to the situations.

The complete question is as follows:

The picture shows an organ system in the human body.

Brain, Nerve, and spinal cord.

What do these organs do in the human body?

  • They filter pathogens and dead cells out of lymph before it returns to the blood.
  • They monitor and react to changes in the body and its environment.
  • They release hormones that control the activities of cells and organs.
  • They identify and destroy things that are foreign or harmful to the body.

Therefore, the correct option for this question is B, i.e. They monitor and react to changes in the body and its environment.

To learn more about Organs, refer to the link:

brainly.com/question/1126526

#SPJ1

5 0
1 year ago
Briefly summarize the steps of the six natural cycles of Earth.
Anastaziya [24]
Rock cycle- the prices in which rocks undergo in the earths crust, involving igneous instruction, uplift, erosion, transportation, deposits as sedimentary rock.

Tectonic cycle- the movement of large portions of earths crust (plates) the driving forces that move these plates are a combination of events that occurs within the earth.

Water cycle- the path of all water followers as it moves around earth in different states, water vapor, ice, water...

Carbon cycle- series of processes by which carbon compounds are inverted in the environment involving the incorporation of carbon dioxide into living tissue by photosynthesis.

Nitrogen cycle- series of processes by which nitrogen and is compounds are introverted in the environment and living organisms.

Phosphorus cycle-biochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
3 0
2 years ago
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