Answer:
Explained
Explanation:
The first thing that the etiologist can do is try and culture bacteria from the tissue samples in the lab. And then study about the bacterium's properties and characterstics that are leading to causing diseases in the humans.
Answer: c
Explanation: the bones shown are all leg bones but from different species
Hormones play an important role in the sexual maturity in a male and female. Sexual maturity in humans starts at puberty which is guided by hypothalamus by secreting hormone that acts on pituitary gland. The anterior portion of the pituitary gland in response secretes gonadotrophins. Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH) act on the gonads of female and male which secrete other hormones in the response. The testes of male secrets hormone androgen while the ovaries of female secrete estradiol. Estradiol and androgen are responsible for sexual characteristics of male and female.
You can either imagine it but it is spiral. Spiral is a coil or curl.
In the plants, vascular system has two parts. Xylem transports water and minerals up, and phloem transports sugar down and to all the cells of the plant.