Answer:
1,2 × 10⁹ : 1
Explanation:
In fact, the average male will produce roughly 525 billion sperm cells over a lifetime and shed at least one billion of them per month. A healthy adult male can release between 40 million and 1.2 billion sperm cells in a single ejaculation.
Answer: skeletal system
Explanation: osteoarthritis affects the cartilages of Bones.cartilages is a flexible connective tissue ,in a joint that covers the surface of the bones in the joint.it also cushions the bones from impact.
During osteoarthritis,the cartilages wears out and causes the bones in the joint to rub against each other causing swollen joints, painful joints and stiffness of joints
It occurs in joints of the knees,hips,fingers and toes.
Almost all areas of Biology have developed in the twentieth century, but few areas have gained a lot of importance. Some of these are :
1. Genomics and Genetics
2. Biotechnology
3.Cell and molecular biology
Biotic components would help the abiotic population because living animals depend on things like rain water for survival.if there a drought, than most of the population will most likely not make it
Answer:
Gamete :
A reproductive (sex) cell. In males, sperm; in females, eggs
Fertilization:
The process in sexual reproduction in which a male gamete and female gamete fuse to form a new cell
Zygote:
Cell resulting from fertilization
Diploid (2n):
Cell that contains two sets of homologous chromosomes
Haploid (n):
Cell that contains only a single set of genes
Apoptosis:
the process of programmed cell death
Differentiation:
The process by which cells become specialized in structure and function
