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nekit [7.7K]
3 years ago
11

Third-class lever systems, like most skeletal muscles, enable great strength but sacrifice speed and distance of movement. Third

-class lever systems, like most skeletal muscles, enable great strength but sacrifice speed and distance of movement. True False
Biology
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

The correct answer will be- false

Explanation:

The understanding of the biomechanics of the human movements is studied by the lever system which represents the rigid bar which comes on a fixed point as a result of the force exerted.

The lever systems are defined into three types into which the last lever system is the third lever system which is the recognized by the muscle (effort) in the middle of the joint (fulcrum) and the weight of the body (load).

These movements are related to the exercise like jumping, running and kicking which requires speed and distance to be covered. Thus, false is the correct answer.

the effort is the middle component and lies between the fulcrum and load.

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Do you think that in the human species, there are psychological traits such as empathy, aggression, intellect, imagination, etc.
WARRIOR [948]

Answer:

each sex has these traits, but with some, like aggression, I feel can be more "biased", so to speak, to the male sex

Explanation:

5 0
3 years ago
Which of the following is similar among all living organisms on Earth? social behavior, physical appearance, cellular function,
Mkey [24]
It is all of them. To be alive we all kind of have to have a face or body, we all need cells to help us with our day to day activities and we all need to communicate with other humans so that would be social behavior. 
3 0
3 years ago
Read 2 more answers
There are
kati45 [8]

Answer: Option A) 7

Explanation:

Taxa simply refers to the each category of classification used for biological purposes.

Thus, each taxon in the linnaen system of classification formed by Carolus Linnaeus are arranged as follows:

Kingdom --> phylum/division --> class --> order --> family --> genus --> species

Thus, they are they are seven (7) in total

6 0
3 years ago
In a unique species of plants, flowers may be yellow, blue, red, or mauve. All colors may be true-breeding. If plants with blue
Zolol [24]

Answer:

F1) 100% bbRr, red flowered plants.

Explanation:

<u>Available data:</u>

  • flowers may be yellow, blue, red, or mauve
  • colors may be true-breeding
  • the cross of blue-flowered plants with red-flowered plants, produce plants that have yellow flowers
  • F2 generation: 9/16 yellow, 3/16 blue, 3/16 red, and 1/16 mauve.

Knowing that the phenotypic ratio is 9:3:3:1, we can assume that there are two genes involved in the flower color expression. We can name these genes B and R with a dominant and a recessive allele each (B, b and R, r respectively).

According to the first cross, we might establish the following genotypes:

1st Cross: blue-flowered plant     x     red-flowered plant

Parentals)         BBrr                     x                bbRR

Gametes)     Br, Br, Br, Br                         bR, bR, bR, bR

F1) 100% BbRr, yellow plants

Parentals)   BbRr     x     BbRr

Gametes) BR, Br, bR, br

                BR, Br, bR, br

Punnett square)     BR       Br        bR          br

                  BR     BBRR    BBRr   BbRR     BbRr

                  Br      BBRr     BBrr     BbRr      Bbrr

                  bR     BbRR    BbRr    bbRR      bbRr                    

                  br      BbRr     Bbrr      bbRr      bbrr

F2)  9/16 yellow ---> 1/16 BBRR + 2/16 BBRr + 4/16 BbRr + 2/16 BbRR  

       3/16 blue ------> 1/16 BBrr + 2/16 Bbrr

       3/16 red---------> 1/16 bbRR + 2/16 bbRr

       1/16 mauve ----> 1/16 bbrr    

So,

  • Yellow-flowered plants: BBRR, BBRr, BbRR, BbRr
  • Red-flowered plants: bbRR, bbRr
  • Blue-flowered plants: BBrr, Bbrr
  • Mauve-flowered plants: bbrr

According to these genotypes, the second cross would be like following,

2nd Cross: true-breeding red-flowered plants with true-breeding mauve flowered plants.                

Parentals)          bbRR       x        bbrr

Phenotype)       Red                   Mauve

Gametes)   bR, bR, bR, bR      br, br, br, br

Punnett square)    bR       bR        bR        bR                    

                    br    bbRr     bbRr    bbRr     bbRr

                    br    bbRr     bbRr    bbRr     bbRr

                    br    bbRr     bbRr    bbRr     bbRr

                    br    bbRr     bbRr    bbRr     bbRr

F1) 100% bbRr, red flowered plants.

6 0
3 years ago
The microorganisms that do not have a nucleus in their cells are called:
Monica [59]

Answer:

d

Explanation:

prokareyote or bacteria does not have a nucleus.

6 0
3 years ago
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