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Archy [21]
3 years ago
15

Griffith found that this combination of Streptococcus pneumoniae strains was highly severe.

Biology
1 answer:
Natali [406]3 years ago
3 0

Answer: Live R strain + Heat-killed S strain

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You know that the narrow-sense heritability of milk production in Ayrshire cattle is 0.587. You perform an experiment where you
Paha777 [63]

Answer:

Explanation:

Narrow sense heritability - h​​​​2

​​​​​​selection differential - S

Selection differential is calculated from the difference between the population average and the parental population.

Breeder's equation:

Response to selection - R = h​​​​​​2S

Mean milk production of 10% cows for experiment = 8.9L/hr

Mean milk production of parental population = 5.1L/hr

Selection differential S= 8.9 - 5.1 = 3.8 L/hr

Response to selection = 0.587 × 3.8 = 2.23

3 0
3 years ago
What is the plural of drive-in? Use a dictionary if necessary.
Alexxandr [17]
Answer is drive- ins
“s” at the end as in multiple
6 0
3 years ago
What happens when troponin and tropomyosin block the active sites of actin?
EleoNora [17]

Answer:

The correct answer is "It prevents spontaneous muscle's contraction".

Explanation:

Muscle contraction is produce by the interaction of actin and myosin filaments. Basically, myosin binds to the active sites of actin, which produces a protein complex (known as actomyosin) that allows that the filaments slide past each other and generate a contraction. When troponin and tropomyosin block the active sites of actin prevents spontaneous muscle's contraction, because a nervous impulse is needed to remove the inhibitors and that myosin starts the contraction.

5 0
3 years ago
A paragraph on the 3 forms of energy involved in a muscle contraction
irga5000 [103]
There are three types of energy involved in a muscle's contraction. There is metabolism, catabolism, and anabolism. Metabolism is the events that are carried out in the human body to create energy and other things needed for activity. Catabolism is the process during the organic matter is broken down and the energy is released, it takes place during increased movement. Anabolism is the energy-consuming process that substances are created, it takes place when there is little movement. All three of these work to gather in muscle contraction.  
7 0
3 years ago
How are till and outwash different please help me
elena55 [62]
Well, they are both deposited by glaciers, but the way they are deposited makes them different.  Till is just sediment left by the ice, outwash is deposited by the running water coming off of the glacier.  Your welcome! Don't for got to thank me!
8 0
3 years ago
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