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NeX [460]
2 years ago
10

Heat transfer by conduction occur when molecules

Biology
1 answer:
Reika [66]2 years ago
6 0
I think the answer is B.
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For each region of the lac operon on the F' plasmid, I+ P+ Oc Z− Y+ , determine whether the region is wild type (that is, it pro
UNO [17]

Answer:

A,B and E

Explanation:

  • I+: I refers to the lac repressor, the + indicates that the repressor is functional
  • P+:  P refers to the promoter region and the + indicates that the promoter is functional
  • Oc:  O refers to the operator region, but the Oc indicates that the operator is constitutive ie. that it is always on/ can't be turned off.
  • Z-: Z refers to the LacZ gene which produces β-galactosidase. Z- indicates that this gene is non-functional
  • Y+:  Y refers to the LacY gene which produces the permease protein. Y+ indicates that this gene is functional

So based on the breakdown above:

  • A is true because P+.
  • B is true because I+.
  • C is not true because the lac operon is an inducible system. The operator needs to be able to be repressed. In this case the operator is constitutive (always on)  which is not the correct form.
  • D is not true because Z-, no β-galactosidase is produced.
  • E is true because Y+.

Only A, B and E apply.

6 0
2 years ago
Each of the following statements concerning hair is true except
Levart [38]

Answer: A. scalp hairs grow constantly throughout life.

Explanation:

Hair is a squamous keratinized epithelium which is consist of multi-layered flat cells.  Hair are made up of protein called "keratin".

The statement "scalp hairs grow constantly throughout life" is false because at a particular age or due to several factors scalp hairs stop growing.

Scalp hair growth rate depends on three main factors including sex (female hair grows faster than male), age (hair growth slows with age), and ethnicity (Asian hair grows slower than Caucasian hair).

Scalp hair growth stops because of  follicle devitalization when the hair length become two or three feet.

Hence, the correct answer is A. "scalp hairs grow constantly throughout life".

5 0
3 years ago
This is the removal of trees and the conversion of forest lands to farmlands, logged areas, or cities.
morpeh [17]

The answer you seek is DEFORESTATION.

3 0
3 years ago
Read 2 more answers
What are cross cutting concept(s
vodomira [7]
Crosscutting concepts have application across all domains of science. As such, they are a way of linking the different domains of science. They include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.
4 0
3 years ago
Capturing energy is critical to
scZoUnD [109]

Answer:capturing energy help living organism autotrophs to convert inorganic carbon that is(CO2)to organic carbon (C6H12O6)which is required by living cell generally living organism for energy production

4 0
3 years ago
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