1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kow [346]
3 years ago
6

Sperm in the lumen are unable to move independently and require ________ to move through the tubules of the testes.

Biology
2 answers:
mrs_skeptik [129]3 years ago
8 0

Answer:

The correct answer would be smooth muscle contractions.

The testes ducts include seminiferous tubules, rete testis, epididymis, vasa deferens and urethra.

The seminiferous tubules serves as the site of sperm formation. They then migrate to epididymis for storage and maturation.

The sperm then migrate to vasa deferens from epididymis when the penis gets erected.

When sufficient stimulation is achieved, the vasa deferens propels the sperm forward with the help of smooth muscle contractions.

Readme [11.4K]3 years ago
7 0
I believe the answer would be semen
You might be interested in
Rachel Carson wrote in Silent Spring, "The chemical war is never won, and all life is caught in the crossfire." Respond
AleksAgata [21]

Answer:

Yes.

Explanation:

Yes, the statement is right because in chemical war, great damage occurs to all living organisms that has a bad effect on our environment. These chemicals are very dangerous so its usage in the war has long term effects on the environment and the organisms that live in it. Both the opponents receive great damage from this chemical war and the destruction of the natural beauty of the place vanished where this war occurs so this vanished of beauty and organisms is the defeat of both the opponents that fought this war.

3 0
3 years ago
Read 2 more answers
Which characteristic do euglenoids and algae share
Svetradugi [14.3K]
Euglenoids <span>are unicellular protists commonly found in fresh </span>water.They don not have a cell<span> wall, despite that, a protein rich </span>cell membrane called pellicle is present in Euglenoids.
Whereas,<span>Algae are eukaryotic organisms comprising of no roots, stems, or leaves but they filled with chlorophyll and other pigments to carry out the process of photosynthesis. Similar to </span>Euglenoids, they<span> occur most frequently in water, specifically in plankton.
</span>Hence,
Euglenoids and algae share a common characteristic,that is both are autotrophs. They <span>produce complex organic compounds from simple substances present in their surroundings, by the use of energy from sun-light or inorganic chemical reactions.</span>
6 0
3 years ago
Read 2 more answers
Why are the moon’s craters preserved?
Bingel [31]
The main reason is that there is no atmosphere. This means that there is no weather and no weather means that there is no wind or rain. Wind and rain are main components of erosion and because there is no erosion, craters can stay preserved for a very long time.

Hope this helps!! 
7 0
3 years ago
This is an observable trait of an organism that can mask the recessive trait.
Naily [24]
This law states an organism has two different alleles for a trait and the allele that is expressed in the phenotype, masking the expression of the other allele,is said to be dominant. The allele whose expression is masked is said to be recessive.
7 0
3 years ago
Read 2 more answers
The atomic number is equal to the number of: electrons, protons and neutrons, protons, neutrons
BigorU [14]

Answer:

to the number of protons

7 0
3 years ago
Read 2 more answers
Other questions:
  • _______ are formed in intestinal cells after dietary fats have been absorbed.
    5·2 answers
  • if a father has type a blood and a mother has type b blood what blood type(s) could their children possibly have
    7·1 answer
  • Which of the following is not associated with the large absorptive surface of the small intestine?
    15·1 answer
  • If the endoplasmic reticulum were removed from the cell, which organelle would not be able to function properly, and why?
    13·2 answers
  • Brown Middle School is trying to become a "green school". To do this, parents, faculty and staff members are meeting to discuss
    9·2 answers
  • Suppose you are involved in a project studying a population of Dalea purpurea (purple prairie clover), a diploid, bee pollinated
    12·1 answer
  • Dehydration synthesis is a process in which
    9·1 answer
  • Euglena contain chloroplasts. When light is limited, they can eat particles to obtain energy, Are these organisms classified as
    9·1 answer
  • Deco cubes with 3 types of solutions science
    5·2 answers
  • Tại sao lá cây có màu xanh
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!