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
Dmitrij [34]
2 years ago
8

Do echinoderms and vertebrates both have endoskeletons? explain.

Biology
1 answer:
weeeeeb [17]2 years ago
8 0

Answer:

Echinoderms have a calcium carbonate endoskeleton, and vertebrates have a bony endoskeleton made of calcium phosphate. have bones mostly made of calcium phosphate.

Explanation:therefore, echinoderms do not have true endoskeletons.

You might be interested in
What macromolecule is produced during translation?
mash [69]
The macromolecule is known as protein when produced from the process of translation
6 0
3 years ago
Read 2 more answers
Lsd closely resembles the molecular structure of what ingredient?
Kisachek [45]
The appropriate response is serotonin. LSD is a medication that modifies the client's psyche. This implies it follows up on your mind. This type of medication changes your state of mind, conduct, and the way you identify with your general surroundings. LSD influences the activity of a cerebrum substance called serotonin. Serotonin helps control conduct, inclination, the faculties, and considering
5 0
3 years ago
C. Where does the progesterone come from?​
SOVA2 [1]
Progesterone is a steroid hormone that is usually made by the adrenal cortex along with the gonads, which consists of the ovaries and testes
hope this helps
4 0
3 years ago
Allen Dexter, a 19-year-old college student, was rock climbing when he fell 30 feet to the ground. Paramedics arriving at the sc
a_sh-v [17]

Answer:

Explanation:

A cervical collar was used to avoid movement and prevent further damage incase he has a fracture.

light is focused in one eye,the pupil will constrict as a respond to the light flashed. It is repeated Again and observed.

The vitals were normal until he had the accident as the patient reached hospital his vitals were abnormal he had achycardia, severe hypotension, increased temperature and shallow breathing which is an indicator of C5 injury. After the surgery and the patient was treated he stabilises and achieved his vitals normal ranges in day 4 of admission.

The X ray result shows he has fracture of the 5th cervical bone.

The blood test shows he has a decreased pH level and an alteration in

his breathing pattern shows he has respiratory acidosis

Cranial tongs was uses to immobilize the neck and prevent it from moving it also aid healing

After the operation it was revealed that he has a damage on both sides of of his 5th Cervical bone which has lead to loss of sensation and strength in his upper arms and lower .It leads to incontinence in urine.

6 0
3 years ago
Ms.Tim wants to find out how sleep affects students test scores.He organized two groups of students.In Group A, He has student s
Makovka662 [10]

Answer:

Independent Variable: Hours of sleep

Dependent Variable: Test scores

Experimental Group: Group A

Control Group: Group B

Explanation:

Hours of sleep is the independant variable because it is the factor being tested by the teacher. This is the factor that can be controlled.

Test scores is the dependant variable because it is the factor being affected by the changes in the independent variable. This is the variable being measured.

Group A is the experimental group because this is the one that has been altered or changed from what is normal.

Group B is the control group because nothing is being changed in this group but simply measured as a basis for comparison.

6 0
2 years ago
Other questions:
  • 1. Wegener formed the theory of continental drift in 1912. What prevented research of the ocean floor, paleomagnetism, and earth
    12·2 answers
  • Sexual reproduction increases the genetic variation of a species because
    15·2 answers
  • Please answer the question. I’ll give thanks to those who help.
    13·2 answers
  • Birds feathers are modified scales
    9·1 answer
  • A DNA strand has the sequence GTTCCAGAG. Which is the complementary strand of RNA?
    12·2 answers
  • Precipitation is the loss of water by leaves. true false
    14·2 answers
  • Which biological molecule is shown?
    7·1 answer
  • The discovery of cells is most directly linked to the
    7·1 answer
  • Energy is used by the organisms in each tropical level, which is why only 10% remains to transfer. What is an example of how org
    11·1 answer
  • Please help i have no idea.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!