Answer: positive sodium ions
Explanation:
This relates to the Action Potential which is what a nerve cell goes through when it needs to send information down the nerve cell to another cell and so on till it gets to the destination of the message.
The information is transmitted when the segments of the axon fire and when they do, positive sodium ions come in from outside the cell to the inside thereby making the inside positive. The previous segment would return to a resting potential when potassium ions which are negative, rush into the cell.
Answer:
This question lacks options; the options are:
A) a lemur.
B) a tarsier.
C) a bird.
D) a new world monkey.
E) more than one of these.
The answer is A). Lemur
Explanation:
The animal being described in this question is a mammal that belongs to the order, PRIMATE because of its features which include forward-facing eyes, nails instead of claws etc. The genus of the animal being described is LEMUR.
Lemurs are a group of primate animals that possess a moist nose, a feature that makes them belong to the STEPSIRRHINES group of primates. Lemurs possess forward facing eyes, nails on their toes and fingers and also like every other mammal, care for their young ones.
Answer:
Pacemaker cells are located in the <u>sinoatrial node.</u>
Contractile cells are located in the <u>Heart</u>
Explanation:
Answer:
Archaebacteria are primitive, single-celled microorganisms that are prokaryotes with no cell nucleus. Each archaea has the ability to live in very severe environments.
Archaebacteria are one of the six kingdoms of life: plants, animals, protists, fungi, eubacteria and
