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Mariana [72]
3 years ago
10

Where are barbules and pinnae connected to the feathers of birds?

Biology
1 answer:
Firdavs [7]3 years ago
3 0
What is barbules and pinnae?
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PLS HELP I WILL GIVE YOU BRAINLIEST AND PLS EXPLAIN YOUR ANSWER!!!
Kipish [7]

Answer:

Most likely centripetal force. Newton's first law states that an object in motion will continue to remain in motion unless acted upon by an outside force. In this case, that outside force is the centripetal force.

Explanation:

Hope this helps :)

8 0
2 years ago
What can leaves do that roots cannot?
kirill [66]

\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}

carry out photosynthesis

8 0
2 years ago
Read 2 more answers
Plants use carbohydrates to build things such as cellulose. How do plants acquire these building blocks to build mass?
koban [17]
I believe the correct response would be C. Plants acquire carbohydrates by producing them through the process of photosynthesis. This allows plants to then use the formed carbohydrates to build structural polymers, such as cellulose.
3 0
3 years ago
The characteristics of all organisms and viruses are determined by the instructions carried in _______.
zaharov [31]

Answer:

<h3><em>Both DNA, which stores genetic information and encodes protein sequences, and RNA, which is involved in the direct production of proteins, are nucleic acids.</em></h3>

<em />

Explanation:

3 0
2 years ago
The diagram below shows a particle of food being moved along the human digestive tract by alternative waves of relaxation and co
KATRIN_1 [288]
Peristalsis is the involuntary relaxation and constriction of the muscles of the digestive system which causes the movement of food in the digestive system. This is actually one of the reasons why you can eat upside down, however it is not advisable. 

The answer is PERISTALSIS.

A  Kidney/s: They are bean-shaped organs that filter waste products and urea from the blood. The filtering units of kidneys are called nephrons. Along with water, these waste products and urea are what makes up urine.

B. Ureters - 
These are thin tubes that connect the kidney and bladder. From the kidneys, the urine passes through the ureter down to the bladder. These ureters are just about 8 to 10 inches long. The ureters' walls tighten and relax to prevent back flow of urine. 

C. Urinary Bladder - 
The bladder is a hollow and balloon-shaped. It collects the urine from the ureters. The bladder is held up by ligaments that are attached to the pelvic bones and other organs. The bladder has a sphincter that prevents leakage into the end point of the urinary system. 

D. Urethra
- It is a tube that allows the passage of urine out of the body. Men generally have longer urethras than women. In women, the urethra is about 2 inches long and in men, about 8 inches long. 


4 0
3 years ago
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