Answer:
The calcium concentration must be greater OUTSIDE
the cell than INSIDE the cell.
Explanation:
Calcium has a vital role in the body, it is necessary for:
- exocytosis
- muscle contraction
- normal excitability of neurons
- blood coagulation
- building and maintaining bones and teeth
- enzymatic activity
Answer:
Ambulacraria
Explanation:
Ambulacraria or Coelomopora is an invertebrate clade that encompasses the Echinodermata and Hemichordata within the deuterostomies. This grouping is considered Chordata's sister taxon because it has a common ancestor.
The phylum Chordata is considered the last within the evolutionary range and comprises all vertebrates and some invertebrates such as amphioxus and tunicates. The main feature of this phylum is the presence of notochord in at least one of its embryonic phases. In vertebrates, the notochord will later make room for the Vertebral Column.
The answer is the gradual decrease in sexual activity in some males as a
result of illnesses and losses. <span>Male menopause involves a
drop in testosterone making in men who are age 50 or older. It’s often associated
with hypogonadism. Both conditions involve lowered testosterone levels and
similar symptoms.</span>
To permanently altering the viral DNA hidden in human cells. ... “These treatments cause the viruses to go latent, or silent, but they don't remove the virus from your body.
