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
PSYCHO15rus [73]
3 years ago
7

I need help with this please

Biology
1 answer:
labwork [276]3 years ago
6 0

Answer:

I think the answer is to dill with cenametsrs

Explanation:

You might be interested in
The karyotype for trisomy 21 illustrates an example of a genetic mutation caused by A) insertion. B) inversion. C) crossing over
Katyanochek1 [597]

Trisomy 21, as illustrated by the karyotype, is caused by nondisjunction. This occurs when chromosomes do not separate properly during meiosis.

Answer is D) nondisjunction

7 0
3 years ago
Read 2 more answers
The process of filtration in the kidney is most accurately described as
Vedmedyk [2.9K]
It is described as relatively non specific 
8 0
3 years ago
How could you test to see if soil temperature was responsible for a variation in flower color?
Anuta_ua [19.1K]
Take a White Flower and measure it with different soil temperatures and see if it changes colors. And don't forget to record the color and take a picture with different temperatures
6 0
2 years ago
Read 2 more answers
What possible offspring genotypes and probabilities for each can be generated by an Aa parent through selfing?
GenaCL600 [577]

.75. 75% A because is is a dominant gene. a is 25% because it is recessive, and is mostly overcome by a dominant gene.

6 0
2 years ago
Using the sliding flament theory, explain (or draw) the process of sarcomere shortening. Start from the point where calcium woul
Arte-miy333 [17]

Answer:

  1. Calcium binds to troponin C
  2. Troponin T moves tropomyosin and unblocks the binding sites
  3. Myosin heads join to the actin forming cross-bridges
  4. ATP turns into ADP and inorganic phosphate and releases energy
  5. The energy is used to impulse myofilaments slide producing a power stroke
  6. ADP is released and a new ATP joins the myosin heads and breaks the bindings to the actin filament
  7. ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, starting a new cycle
  8. Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.

Explanation:  

In rest, the tropomyosin inhibits the attraction strengths between myosin and actin filaments. Contraction initiates when an action potential depolarizes the inner portion of the muscle fiber. Calcium channels activate in the T tubules membrane, releasing <u>calcium into the sarcolemma.</u> At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to troponin C, troponin T alters the tropomyosin position by moving it and unblocking the binding sites. Myosin heads join to the uncovered actin-binding points forming cross-bridges, and while doing so, ATP turns into ADP and inorganic phosphate, which is released. Myofilaments slide impulsed by chemical energy collected in myosin heads, producing a power stroke. The power stroke initiates when the myosin cross-bridge binds to actin. As they slide, ADP molecules are released. A new ATP links to myosin heads and breaks the bindings to the actin filament.  Then ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, which starts a new binding cycle to actin. Finally, Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.

4 0
2 years ago
Other questions:
  • These moth wings shown in the image below are all the same species.
    13·2 answers
  • Chemical cells wired in series make the battery last _____________ those in parallel. Given both circuits receive the same load
    13·2 answers
  • What is the mass of an element with 15 protons, 13 electrons, and 11 neutrons?
    13·1 answer
  • Two scientists do not agree on which type of grocery bag is better for the
    11·1 answer
  • To make your home a safe environment,_______ measures need to be taken on a moment-by moment basis.To make your home a safe envi
    15·2 answers
  • What is the source, target, and action of erythropoietin
    7·1 answer
  • Without feedback, what would happen to a person's height?<br><br> HELP ASAP PLZ
    14·2 answers
  • Which image represents cytokinesis in a plant cell?​
    10·2 answers
  • Any TWO mineral elements that are required for the formation of<br>proteins<br>​
    11·1 answer
  • 1. Who is widely considered to be the
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!