This is because Pangaea explains that once there was one huge country that expanded across the whole world, but it split apart and animals that were once next to each other were drifting apart to other parts of the world where both would survive on both sides.
The green organisms collected from the pond by Ricardo may be plants or protists. It is required to key out these organisms so that they can be differentiated. In order to determine whether or not these organisms are plants, he should check for the key features of plants, such as whether or not the organisms do photosynthesis. and whether these organisms are multi-cellular or unicellular.
The protists may also contain chloroplasts and cell wall made up of cellulose. Therefore, testing for the presence of these features will not help in determining whether the collected organisms are plants or not.
Hence, he should check whether the organisms are capable of doing photosynthesis or not.
Answer:
D
Explanation:
Prokaryotes are single-celled organisms of the domains Bacteria and Archaea. All prokaryotes have plasma membranes, cytoplasm, <u>ribosomes</u>, a <u>cell wall</u>, DNA, and lack membrane-bound organelles
Answer:
When you ascend, water pressure decreases while the air in your lungs increases. Your lungs will overstretch and rupture. Asphyxiation is the deprivation of oxygen resulting in unconsciousness or death.
Explanation:
It usually happens to scuba drivers. Pressure changes will cause you injuries when you go down the water and then you go up. When you descend, water pressure increases while the air in your lungs decreases. When you ascend, water pressure decreases while the air in your lungs increases. Your lungs will overstretch and rupture. Asphyxiation is the deprivation of oxygen resulting in unconsciousness or death.
Answer:
Clomid tricks the body because it tells the brain that estrogen levels are low, thereby leading to higher production of this hormone
Explanation:
There are many types of hormones that are regulated by the negative feedback mechanism (where hormone feeds back to decrease its production). Clomid is a drug used to treat female infertility by making the body think that the concentration of estrogen is low, which induces the secretion of Follicle-stimulating (FSH) and luteinizing (LH) hormones by the pituitary gland. The estrogen hormone exerts negative feedback on the Gonadotropin-releasing (GnRH) hormone, which is responsible for the release of FSH and LH. High FSH levels stimulate the growth of follicles in the ovaries, which will be released during ovulation.
