Q: Q: The interaction of what opposite factors describe a biome and ecosystem? Read this paragraph and choose the correct option from the provided answers: The abiotic factors, such as the amount of rainfall and the temperature, are going to influence other abiotic factors, such as the quality of the soil. This, in turn, is going to influence the plants that migrate into the ecosystem and thrive in that biome. Recall that migration is the movement of an organism into or out of a population. It can also refer to a whole new species moving into a habitat . The type of plants that live in a biome are going to attract a certain type of animal to that habitat. It is the interaction of the abiotic and biotic factors that describe a biome and ecosystem. In aquatic biomes, abiotic factors such as salt, sunlight and temperature play significant roles. Choices: - metastasis and biotic - innate and biotic - hygroscopic and abiotic - abiotic and biotic A:
A: abiotic and biotic

Q: Q: What is the main artery of the systematic circulation called? Read this paragraph and choose the correct option from the provided answers: Blood Vessels The blood from the heart is carried through the body by a complex network of blood vessels (Figure 16.12). Arteries take blood away from the heart. The main artery of the systemic circulation is the aorta; it branches into major arteries that take blood to different limbs and organs. The aorta and arteries near the heart have heavy but elastic walls that respond to and smooth out the pressure differences caused by the beating heart. Arteries farther away from the heart have more muscle tissue in their walls that can constrict to affect flow rates of blood. The major arteries diverge into minor arteries, and then smaller vessels called arterioles, to reach more deeply into the muscles and organs of the body. Arterioles diverge into capillary beds. Capillary beds contain a large number, 10's to 100's of capillaries that branch among the cells of the body. Capillaries are narrow-diameter tubes that can fit single red blood cells and are the sites for the exchange of nutrients, waste, and oxygen with tissues at the cellular level. Fluid also leaks from the blood into the interstitial space from the capillaries. The capillaries converge again into venules that connect to minor veins that finally connect to. Choices: - femoral - subclavian - carotid - aorta A:
A: aorta

Q: Q: What is the name of the part that connects the vagina with the uterus? Read this paragraph and choose the correct option from the provided answers: The uterus is a hollow organ with muscular walls. The part that connects the vagina with the uterus is called the cervix . The uterus is where a baby develops until birth. The walls of the uterus grow bigger as the baby grows. The muscular walls of the uterus push the baby out during birth. Choices: - urethra - ovary - vulva - cervix A:
A: cervix

Q: Q: What is the term for the hard, round object produced within the mantle of a living shelled mollusk? Read this paragraph and choose the correct option from the provided answers: Two natural products of mollusks used for decorations and jewelry are pearls and nacre. A pearl is the hard, round object produced within the mantle of a living shelled mollusk. Pearls are produced by many bivalves when a tiny particle of sand or grit is trapped between the mantle and the shell. It's as if the mollusk has a splinter. The mollusk forms a protective covering around the irritant. Most pearls used as jewelry are made by pearl oysters and freshwater mussels; most of the ones sold are cultured and not wild. Natural pearls have been highly valued as gemstones and objects of beauty for many centuries. Choices: - ball - root - glass - pearl A:
A: pearl