Answer:
Muscle and bones? They work to shoot an arrow.
Explanation:
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells.
Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by a number of genes. When mitosis is not regulated correctly, health problems such as cancer can result.
The other type of cell division, meiosis, ensures that humans have the same number of chromosomes in each generation. It is a two-step process that reduces the chromosome number by half—from 46 to 23—to form sperm and egg cells. When the sperm and egg cells unite at conception, each contributes 23 chromosomes so the resulting embryo will have the usual 46. Meiosis also allows genetic variation through a process of DNA shuffling while the cells are dividing.
Answer:
It's polar.
Explanation:
It has lots of hydrogen bonds.
Answer:
c. creates a high osmotic pressure in the medulla
Explanation:
Loop of henle is a nephron the runs from proximal to distal convulated tubule. It create in the medulla an area of high urea concentration using energy to create the concentration gradients. Henle of loop is divided into four compartment.
1. thin ascending limb of loop of henle- it is highly permeable to water
2. thin decending limb of loop of henle is not permeable to water but Ion
3. ascending limb of loop- reabsorbtion of calcium, sodium and potassium ion from urine takes place here
4.Cortical thick ascending limb- It drains urine into distal convulated tubule.
Hi! The answer is:
The same kind of fossils were found on different continents, and the continents fit together like puzzle pieces.