1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olga_2 [115]
4 years ago
12

Blood cells are _____ in shape because they lack a nucleus.

Biology
2 answers:
sesenic [268]4 years ago
8 0


Red blood cells are disc shaped. It is thought one factor that allows them to have this shape is because they do not have a nucleus. This tends to increase amount of space inside the cell for hemoglobin.

They have a flexible disc shape which helps increase the surface- to- area volume ratio  which enables oxygen and carbon dioxide to diffuse across the red blood cell's plasma membrane more readily.

Their disc shape also enables them to squeeze through tiny capillaries that are half their size .


igomit [66]4 years ago
3 0

Answer:

The correct answer is CONCAVE because they don't have a nucleus. I just took the test!

Explanation:

You might be interested in
Raising your hand and placing it on the shoulder of a person standing in front of you, requires __________ of the shoulder.
deff fn [24]

Answer:

flexion

Raising your hand and placing it on the shoulder of a person standing in front of you, requires flexion of the shoulder.

Explanation:

During flexion, also known as bending, the angle between the two moving parts is reduced (bones or body parts), again this is just bending in simple terms, which is the case for this question.

6 0
2 years ago
What is a ganglion ? ​
DaniilM [7]

Answer:

Ganglion cysts are lumps that most commonly develop in the wrist. They're typically round or oval and are filled with a jelly-like fluid. Ganglion cysts are noncancerous lumps that most commonly develop along the tendons or joints of your wrists or hands. They also may occur in the ankles and feet.

6 0
3 years ago
Read 2 more answers
Question 7<br> How do biologists define species?
natka813 [3]

Answer:

the most basic category in the system of taxonomy

8 0
3 years ago
Read 2 more answers
Two-month-old roderick lives in a home with parents who both smoke cigarettes. he has a mild respiratory infection and sleeps on
9966 [12]
<span>He is at an increased risk for sudden infant death. Since he is sleeping on a mattress that might inhibit his breathing, as well as having respiratory issues that might do the same (along with parents who are smoking, which will only inhibit proper respiration further), he will need to be constantly checked to make sure he is sleeping properly.</span>
5 0
3 years ago
The year graphs shown below represent hours of daylight and solar energy for what location?
Ne4ueva [31]

b. Arctic Circle (66.5° N)

3 0
4 years ago
Other questions:
  • Why is'nt milk converted into curd by adding buttermilk while the same is possible with curd?
    14·1 answer
  • Which is the best description of osmosis?
    6·1 answer
  • Which of the following is NOT a characteristic of marine west coast climates?
    9·2 answers
  • How can natural selection affect a predator-prey relationship in an ecosystem?
    14·2 answers
  • All of the following are found in a chloroplast EXCEPT?
    13·2 answers
  • Which of the following is correct about the flatworm's muscular system ?
    5·2 answers
  • When organisms die, most of the nitrogen in their tissues is
    11·2 answers
  • Pooppopopoopopopokjkkkjkkjkjkjkj
    5·1 answer
  • Which animal behavior is characterized by a decrease in heart rate and body temperature and the use of stored fat to provide ene
    14·2 answers
  • B. What is a problem with partial DNA samples? In your answer, include how databases
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!