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Dominik [7]
3 years ago
5

Which three continents contain coal fields that provide evidence for continental drift?

Biology
2 answers:
GarryVolchara [31]3 years ago
8 0
Eurasia, Africa, and South American
vivado [14]3 years ago
4 0

Answer:

The answer is Eurasia, North America, Africa, and South America.

Explanation:

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Tetracycline is rarely used in pregnant and very young patients because it can:
BlackZzzverrR [31]
Systemic sulfonamides are contraindicated during late pregnancy<span>, lactation, and in ... ARF is </span>rarely<span> associated with newer sulfonamides, which are more soluble ... is the drug of choice </span>because it can<span> be given to </span>patients<span> with renal impairment, ...</span>
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3 years ago
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You are studying body color in an African spider and have found that it is controlled by a single gene with four alleles: B (bro
lisabon 2012 [21]

Answer:

<h2>50% are brown.</h2><h2>50% are green.</h2><h2 />

Explanation:

Given;

B allele is for brown color, so B = brown,

br= red,

bg= green,

by= yellow.

B is dominant over all;

bg is dominant over by;

br is dominant over bg;

by is recessive to all other alleles.

Here,  cross between  brown (B/by) and pure green (bg/bg).

B/by× bg/bg

progeny

Genotype= B/bg, B/bg, by/bg and by/bg.

Phenotype= B/bg= brown;

by/bg= green

So, 1/2 are brown and 1/2 are green.

5 0
3 years ago
The abundance of birds and other predators of borer beetles depends on how much natural forest is left within and around the cof
NeX [460]
The graph below presents the number of borer beetles per hectare in relation to the size of the forest cover.
As we can see, the number of borer beetles increases with the percentage of forest cover. At 15% of the forest cover the number of beetles is around 4 per hectare and at 30% it would be around 11, showing a 275% increase in number.

4 0
3 years ago
Which part of the nerve cell is specially constructed to transmit a message from one cell to another nerve cell?.
natulia [17]

The part of the nerve cell that is specially constructed to transmit a message from one cell to another nerve cell is axon.

<h3>What is a nerve cell?</h3>

Nerve cell is a cell of the nervous system which conducts nerve impulses, also referred to as a neuron. It is the basic unit of communication in the nervous system.

The nerve cell is a type of cell that receives and sends messages from the body to the brain and back to the body. The messages are sent by a weak electrical current.

The nerve cell is made up of three main parts as follows:

  • Cell body
  • The dendrites
  • The axon

The cell body, also called the soma of the neuron contains the cell’s nucleus, which controls the activities of the cell.

Dendrites are extensions that branch off the cell body. They receive chemical signals from other neurons, which they convert to electrical impulses and transmit to the cell body.

The axon is a long extension of cells where information leaves the nerve cell and is passed on to target cells.

Therefore, the axon is the part of the nerve cell that transmits message from one nerve cell to another.

Learn more about nerve cell at: brainly.com/question/15642720

#SPJ1

7 0
2 years ago
Fish that can survive saline and freshwater environments can be found in
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<span>Fish that can tolerate a wide range of salinity at some phase in their life-cycle are called euryhaline species. These fish, which include salmon, eels, red drum, striped bass and flounder, can live or survive in wide ranges of salinity, varying from fresh to brackish to marine waters.</span>
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