BIOLOGY HIGH SCHOOL

What kind of cell or cells were used to make Dolly?a. body cell only
c. egg cell and sperm cell
b. egg cell only
d. body cell and egg cell

Answers

Answer 1
Answer: Well Dolly the sheep was a clone, so she would have been reproduced using somatic (body) cells and not gametes.
Answer 2
Answer:

Answer:

it was a cloned sheep

Explanation:

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Plant and animal cells both have

Answers

Plant and animal cells both have A nucleous
would one be a nucleus?

In which situation is the object experiencing balanced forces? A) A girl swings on a swing at the playground. B) A car brakes as it approaches a traffic light. C) A sled speeds up as it slides down a snow-covered hill. D) A sky diver reaches terminal velocity when he stops accelerating.

Answers

Answer;

D) A sky diver reaches terminal velocity when he stops accelerating.

Explanation;

  • Balanced forces are forces that act in opposite directions and are equal in size. When an object is acted upon by unbalanced forces then the object stays still or at rest or continues moving at a constant velocity in the same direction.
  • Unbalanced forces cause an object or a body to change its motion or velocity and direction.
  • A sky diver who reaches terminal velocity when he stops accelerating, experiences balanced forces. Terminal velocity being a point at which the drag force is equal to the force of gravity.
D) A sky diver reaches terminal velocity when he stops accelerating.
F = mass*gravity = Force of air resistance pushing up on the person
Reached terminal velocity = acceleration = zero 

Complete the statements to identify the first two steps of meiosis I.The first and longest step of meiosis I is called
I.

The second step of meiosis I is called
I.

Answers

Answer:

Prophase I

Metaphase I

Explanation:

One of the methods of cell division that results in four daughter cells is called meiosis. These cells have half of the number of chromosomes when compared to the parent cell. The sub-phases are prophase, metaphase, anaphase, and telophase. So the first and longest step is called prophase and the second step is called metaphase.

Answer:Prophase!Metaphase I!

Explanation:PIs make me a BRAINLIEST need award

Which of the following levels is the least inclusive, smallest, and most specific of the choices? A. Kingdom B. Order C. Family D. Phylum

Answers

The correct answer is C. Family. That is because the only things smaller than family are genus and species and they are not mentioned here. Life and domain are larger than kingdom and kingdom is larger than phylum. Class and order are smaller than phylum but are larger than family. That's why your correct answer is family.

Extra points for answers Compare the ways in which iron-magnesium minerals and feldspars crystallize from magma

Answers

The comparison of the ways in which iron-magnesium minerals and feldspars crystallize from magma is;

Feldspars continually react with magma and change composition but stay as feldspar whereas iron - magnesium react with magma and change into other minerals.

  • In Bowen's reaction series, feldspar minerals tend to continually change composition, whereas iron - magnesium minerals tend to have an abrupt change of their mineral types.

  • Now, the feldspars that are formed from cooling of magnma are usually very rich in calcium. Thus, as cooling continues, the feldspars will start reacting with the magma and as such the feldspar composition will undergo some changes. This reaction will lead to zoned crystals that have outer layers very rich in sodium while the core is very rich in calcium.

  • For the iron - magnesium minerals, when magma starts to cool, a mineral will now start to crystallize but the more the magma cools the more the temperature drops and a whole new mineral will be formed.

  • Finally, the minerals formed initially reacts with the magma which makes it to be converted into the new mineral.

Read more at;brainly.com/question/2478481
the magma melts then hardens for a long time then iron magnesium pretty much sugar coats it and crystallizes it.

The initial increase in heart and breathing rates during the skin diving trip was probably a result of: a. activation of the sympathetic autonomic nervous system by the new experience. b. activation of the parasympathetic autonomic nervous system by the new experience. c. hypoxia caused by the inability of her blood hemoglobin concentration to supply sufficient oxygen for the strenuous exercise of swimming at sea level. d. elevated core body temperature caused by swimming in warm tropical waters.

Answers

Answer:

a. activation of the sympathetic autonomic nervous system by the new experience.

Explanation:

The sympathetic division of the autonomic nervous system generates a flight or fight response. This is a series of physiological processes that start when a person has any stress, new experience or emergency conditions such as the first diving trip. One such response produced by activated sympathetic division is increased heart rate to pump more blood and deliver more oxygen to body cells and tissues. Also, the person experiences an increased breathing rate to compensate for the increased oxygen demand.
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