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Sophie [7]
2 years ago
15

Which step constitutes the power stroke of muscle contraction?.

Biology
1 answer:
Murrr4er [49]2 years ago
3 0
The myosin head moves toward the M line, pulling the actin along with it , as the actin is pulled, the filaments move approximately 10 nm toward the M line
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The low incidence of cardiovascular disease among the inhabitants of the small town of roseta, pa, a village filled with the des
irakobra [83]

The correct answer is social support.

Social support refers to the actuality and perception that one is cared for, has support accessible from other individuals, and most importantly, that one is a part of a supportive social network.

The four kinds of social support are:

1. Emotional: Expressions of love, empathy, caring, and trust.

2. Informational: Suggestions, advice, and information.

3. Instrumental: Tangle assistance and service.

4. Appraisal: Information, which is beneficial for self-assessment.

7 0
3 years ago
In a monohybrid cross, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would
shepuryov [24]
Incomplete dominance is when the dominant allele is not fully dominant over the recessive allele. This results in three phenotype options rather than three. in this case T= tall, t= short and the two combined would be an intermediate height. A punnet square can help you figure this out.
         T     t
T      TT    Tt
t       Tt      tt

In this case you have one genotype that is two tall (TT) alleles. This will present as a tall plant.
The second genotype present is two  short alleles (tt). You have one of these that will result in a short plant.
The third genotype present is one of each (Tt). This will result in an intermediate height plant. This shows up twice in the punnet square.
Based on this you will have 25% tall, 25% short and 50% intermediate.

6 0
3 years ago
PLEASEE HELPPP!!!!
dusya [7]

Answer:

<em>The correct option is B) Freshwater snails and small fish</em>

Explanation:

As we can see from the food web, the fresh water snails and the small fishes both feed on algae and water plants as their source of food hence, both these organisms feed on the same food.

Other options, like option C, is not correct because water boatman and water plants do not feed on the same sources. Water boatman feeds on reeds whereas water plants do not. Water plants will make their own food.

8 0
3 years ago
What is the expected phenotypic ratio for a one-factor cross of two hybrid organisms?
s344n2d4d5 [400]
You would expect a 3:1 ratio of dominant to recessive.
Two heterozygous, or hybrid, organisms with the genotypes, say, Aa, could yield these 4 offspring: AA, Aa, Aa, and aa. The first 3 have dominant phenotypes, and the last has recessive.

If you liked this answer please rate it as brainliest!! Thank you!!!
6 0
3 years ago
What is the process that changes one set of chemicals into another set of chemicals?
AlladinOne [14]

Answer:

chemical reaction

5 0
2 years ago
Read 2 more answers
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