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Rama09 [41]
3 years ago
6

True or False: Diet has a greater impact on the length and quality of human life than inherited traits from parents.

Biology
2 answers:
max2010maxim [7]3 years ago
8 0
The answer is false
andriy [413]3 years ago
5 0

Answer:

False

Explanation: You can inherit all sorts of diseases from your parents, including cancer.

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Which of the following describes chaparral shrubs?. a.. short. b.. evergreen. c.. contain flammable oils. d.. all of the above
iren [92.7K]
D. all of the above

as they are all, evergreen, short and contain flammable oils
3 0
2 years ago
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Which of these describes a divergent boundary?
sammy [17]
The word divergent means to seperate. Therefore, your answer is A
3 0
3 years ago
Please also describe how actin-binding sites are made available for cross-bridging with myosin heads during contraction.
yaroslaw [1]

Answer: The calcium ion binds to troponin, and this slides the tropomyosin rods away from the binding sites.

Explanation:

Contraction and relaxation of muscle cells brings about movements of the body. The contractile myofilament called sarcomeres are bounded at each end by a dense stripe called the Z - line, to which the myosin fibres are attached, and lying in the middle of the sarcomere are the actin filaments, overlapping with the myosin.

When action potential spreads from the nerve along the sarcolemma (muscle cell membrane), it penetrates deep into the muscle cell through the sarcoplasm (cytoplasm of muscle cell), and releases CALCIUM from the intracellular stores.CALCIUM triggers the binding of myosin to the actin filament next to it forming CROSS BRIDGES.

For this to occur, ACTIN BINDING SITE has to be made available. TROPOMYOSIN is a protein that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin. The first step in the process of contraction is for calcium ions to bind to troponin so that tropomyosin can slide away from the binding sites on the actin strands.

3 0
3 years ago
Which body part is vestigial in humans?
Stels [109]

Answer:

The answer is the 2nd picture: the coccyx bone in humans.

Explanation:

Vestigial Structure:

Structures or anatomical features that do not currently serve a function is the bodily processes of a living organism. Vestiges are believed to have performed active functions in the organism's ancestors throughout its evolutionary history.

Coccyx Bone:

The coccyx or tailbone is an evolutionary remnant of our tree dwelling ancestors. Coccyx has no use in modern humans as we do not need to climb trees.

The coccyx in modern humans serves as an anchor for muscles.

5 0
3 years ago
Name the steps of mitosis illustrated in Diagrams A-D
Galina-37 [17]
A is prophase
B is prometaphase
C is metaphase
D is anaphase
6 0
2 years ago
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