Answer:
The answer is A, open systems!!
Explanation:
all systems on earth are open, except for the earth itself.
B.
Mitosis involves somatic cells only.
Answer:
Corpus Luteum
Explanation:
Corpus luteum is a form of endocrine structure in female ovaries which involved in the production of high levels of progesterone in women. The progesterone is the one that regulate women's sex hormone, menstruation, and pregnancy. Progesterone often used as a medication to combat early symptoms of menopause.
Answer: Fighting infection
Explanation:
Lymphatic system is a type of circulatory system in all vertebrates. It is a network of tissues ,blood vessels, and organs. The primary function of the lymphatic system is to control the fluid balance by collecting the fluid present in excess from the tissues and depositing them in the stream of blood. The secondary function of the lymph system is the production of lymphocytes (white blood cells) which fights against the disease causing pathogens. Hence, fights against infection.
Just took this test,
DNA - Double stranded, ATCG.
BOTH - Building blocks are nucleotides.
RNA - AUCG, In cytoplasm at ribosome.
