Firstly, we need to know what a healthy ecosystem is. When an ecosystem is healthy, this would mean that it could supply all the resources that all organisms present in it and with all the resources, there is diversity. Old growth forests are considered healthy because of this reason. These forests remain untouched and had remained in providing the resources needed for the organisms present in it.
Answer:
D) 38
Explanation:
Most eukaryotes use meiosis as a type of cell division to produce reproductive cells, also known as gametes, this cells are used for sexual reproduction where they fuse together in a process known as fertilization. Somatic cells are diploid while gametes are haploid.
Diploid = 2 (n)
Haploid = n
If the gametes are haploid and contain 19 chromosomes (n= 19), somatic cells must have twice the number (2 * 19 = 38). Options A, B or C are not possible be.
Answer:
DNA polymerase is an
enzyme that synthesizes DNA molecules
from deoxyribonucleotides, the building
blocks of DNA. These enzymes are essential
for DNA replication and usually work in pairs
to create two identical DNA strands from a
single original DNA molecule.
Answer: Each of several hierarchical levels in an ecosystem.
Relating to feeding or nutrition.
Explanation: ...
The answer is b- the crocodile heart has three chambers.
