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
ivanzaharov [21]
2 years ago
13

In the initiation of muscle contraction calcium ions bind to tropomyosin exposing active sites on actin for crossbridge formatio

n
True or false
Biology
1 answer:
Anit [1.1K]2 years ago
7 0

This statement is true. To be more specific, the calcium ions bind to the troponin, which are attached to the protein tropomyosin. The tropomyosin then to shifts to expose the actin filaments to which myosin heads need to bind to produce contraction.

You might be interested in
Pls help due in 1 hour
Marizza181 [45]

Answer:

how do you do it ?

Explanation:

it looks like you already did it

7 0
2 years ago
PLEASE I NEED HELP WITH THIS SCIENCE HOMEWORK WILL GIVE BRAINLIEST
olga55 [171]

Answer:

1. Nucleus

2. Nuclear DNA

3. Chromosomes. They contain the DNA.

4. This is DNA. DNA contains the instructions needed for an organism to develop, survive and reproduce.

5 0
2 years ago
Read 2 more answers
Yellowfin tuna, or Thunnus albacores, are large sport fish that are found in tropical and subtropical waters around the world. T
Ber [7]
<span>The correct answer is 'secondary consumer’. This is because the yellowfin tuna eats herbivorous fish (these are primary consumers - they only eat plants, which are producers) and take refuge from predators. This shows they are not tertiary consumers, as tertiary consumers are at the top of the food chain.</span>
4 0
2 years ago
Read 2 more answers
The inhabitants of the planet Mendel have three alleles for hair color: red (R), white (W) and blue (b). The R and W alleles exh
Alex_Xolod [135]

Answer:

4 RW pink hair color

Explanation:

Let the allele for red hair color = R

Let the allele for white hair color = W

Let the allele for blue hair color = b

Since R and W exhibit co dominance it means none of both traits have the tendency or capability to masked the other .

As such individual with RW genotype = PInk hair color

Allele b is recessive and only individuals with the genotype bb exhibit the blue allele  

Now; if a cross occurs between a red-haired Mendelian and a white-haired Mendelian

i.e

RR   × WW

we have

           R           R

W         RW       RW

W        RW         RW

So we have the following offspring :

4 RW = 4 pink

So theoretically , the possible phenotypes results to 4 RW pink hair color

5 0
3 years ago
Read 2 more answers
BIOLOGY-STARS-THANKS-BRAINIEST
vova2212 [387]

D. POPS.

Your answer is D because pesticides have aldrin, chlordane, .... which are all POPS.

3 0
3 years ago
Other questions:
  • Carbon is released as __________ during respiration.
    15·1 answer
  • BRAINLIESTTTT ASAP!!!!
    8·2 answers
  • How are pollutants released by fossil fuels and how do they damage your health and the environment?
    12·1 answer
  • Research with split-brain patients suggests that the ________ typically constructs the theories people offer to explain their ow
    11·1 answer
  • Which is the best definition of activation energy?
    11·1 answer
  • A set of steps used to collect information and to<br> test a hypothesis is called
    14·1 answer
  • Which organisms initiate the cycling of matter in an ecosystem
    11·1 answer
  • What is peristalsis? how does it work in the esophagus?
    9·1 answer
  • All living organisms require*
    12·1 answer
  • For 50 points and brainliest. Please help!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!