The first organ system that shows any sign of activity is the: respiratory system. digestive ...

Author Question: The first organ system that shows any sign of activity is the: respiratory system. digestive ... (Read 214 times)

skymedlock

Hero Member
Posts: 561

on: Jun 22, 2018

The first organ system that shows any sign of activity is the:

respiratory system.
digestive system.
nervous system.
cardiovascular system.

Question 2

The neural tube will become the

reproductive organs.
intestinal tract.
brain and spinal cord.
backbone, legs, and arms.

frogdreck123456

Sr. Member
Posts: 329

Reply #1 on: Jun 22, 2018

Answer to Question 1

cardiovascular system.

Answer to Question 2

brain and spinal cord.

Need homework help now?

Ask unlimited questions for free

Ask a Question

« previous next »

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

The horizontal fraction bar was introduced by the Arabs.