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Leto [7]
3 years ago
12

The movement of substances across the cell membrane that does require the use of energy by the cell is

Biology
2 answers:
ohaa [14]3 years ago
5 0
It’s active transport because it requires energy
Anuta_ua [19.1K]3 years ago
4 0

(D ) active transport.........................

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1, based on what you know about blood, why would having a sickle cell anemia crisis result in a reduced red blood cell count, an
Alex73 [517]

1. Having a sickle cell anemia crisis is a severe condition of reduced red blood cell count.
 2. Having sickled red blood cells lead to the symptoms like having pain in the chest and the throbbing of her leg.
 3. A person having sickle cell anemia is mostly tired due to reduction in red blood cells, so they cannot do any work with their bodies. There would difference in the personal appearances like yellow eye and skin looks pale and the skeletal system become weak too. There is trouble with breath too. 
 4. The symptoms are as follows like the patient fall in to anemia condition, urine is dark in color, eyes are yellow, and person looks pale and the body experiences frequent pain and delay in the body growth.
 5. Hydroxyurea is the medication used here. The pros of this are the frequent body pains reduces and reduction in need of blood transfusion. the cons are increase of infection and this particular drug may cause tumors and leukemia.
8 0
3 years ago
The total magnification of a specimen viewed under a compound light microscope is determined by the power of the objective lens
Nikitich [7]

Answer:

The power of the objective lens multiplied by the power of the ocular lens

Explanation:

6 0
3 years ago
Read 2 more answers
Compare and contrast dehydration synthesis(condesation) and hydrolysis.
dexar [7]

Answer:

This

Explanation:

In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.Aug 14, 2020

3 0
3 years ago
To be injured by an animal with poisonous spines, you must: Select one: Be within a radius of 3 m/10 ft, as most poisonous anima
Mama L [17]

To be injured by an animal with poisonous spines, you must: be the aggressor and touch the animal first.

<h3>What is the use of spines in animals?</h3>
  • Spines are hard, needle-like anatomical structures found in both vertebrate and invertebrate species.
  • The spines of most spiny mammals are modified hairs, with a spongy center covered in a thick, hard layer of keratin and a sharp tip.
  • Spines on an animal’s body help defend it.
  • They can be irritating or painful, or difficult to swallow.
  • Spines are also important tools for communication, shock absorption, and rain protection.
  • Animals like porcupine shoot their spines (quills) for defense. Some spines can also pass through gloves.
  • To prevent attacked by an animal with poisonous spines you must remain calm and observe your surroundings.

Learn about plant spines here:

brainly.com/question/823927

#SPJ4

7 0
2 years ago
The karyotype of one species of primate has 48 chromosomes. In a particular female, cell division malfunctions, and she produces
Rom4ik [11]

Answer:

E) Either anaphase I or II

Explanation:

Failure of segregation of homologous chromosomes during anaphase I or failure of segregation of sister chromatids during anaphase II leads to the presence of the abnormal number of chromosomes in resultant gametes. In the given example, the egg mother cell with 48 chromosomes (24 pairs) would enter meiosis I but the failure of one pair of homologous chromosomes to segregate from each other followed by normal meiosis II would result in the formation of two gametes with one extra chromosome and two gametes with one less chromosome.

On the other hand, if the nondisjunction occurs at anaphase II of meiosis II, two normal gametes, one gamete with one extra chromosome and one gamete with one less chromosome will be formed. Therefore, nondisjunction at anaphase I or anaphase II would have resulted in the production of eggs with one extra chromosome.

6 0
3 years ago
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