which of these organisms belongs to the kingdom protista
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ATI TEAS 7

TEAS version 7 quizlet science

1. Which of these organisms belongs to the kingdom Protista?

Correct answer: C

Rationale: A) Coral belongs to the kingdom Animalia, specifically in the phylum Cnidaria. B) Yeast belongs to the kingdom Fungi. C) Euglena is a unicellular organism that belongs to the kingdom Protista. It is a type of protist that has characteristics of both plants and animals. D) Mushroom belongs to the kingdom Fungi. Therefore, among the options provided, only Euglena belongs to the kingdom Protista.

2. Which part of the brain controls the pituitary gland and regulates hunger, thirst, and body temperature?

Correct answer: B

Rationale: The correct answer is B - Hypothalamus. The hypothalamus plays a crucial role in controlling the pituitary gland and regulating essential functions such as hunger, thirst, and body temperature. It acts as a vital link between the nervous system and the endocrine system, contributing to the maintenance of homeostasis in the body. Choice A, the Thalamus, is incorrect as it is primarily involved in relaying sensory information to the cerebral cortex. Choice C, the Medulla oblongata, is not responsible for regulating hunger, thirst, and body temperature; instead, it controls autonomic functions like breathing and heart rate. Choice D, the Cerebellum, is primarily associated with coordination and balance, not the regulation of endocrine functions or basic physiological needs.

3. What are the phases of bacterial growth and infection?

Correct answer: A

Rationale: The correct answer is A: Lag, exponential, stationary, death. The phases of bacterial growth start with the lag phase where bacteria acclimate to their environment, followed by the exponential phase characterized by rapid growth. This is then followed by the stationary phase where growth slows as resources deplete, and finally, the death phase where the population declines. Choice B is incorrect as it has the order of phases mixed up. Choice C is incorrect as it also has the order of phases mixed up. Choice D is incorrect as it has the stationary phase occurring before the exponential phase, which is inaccurate.

4. Which of the following is a characteristic of alkenes?

Correct answer: A

Rationale: Alkenes are hydrocarbons that contain at least one carbon-carbon double bond. This double bond is a key characteristic that distinguishes alkenes from other types of hydrocarbons. Option A correctly identifies this defining feature of alkenes, making it the correct answer. Choices B, C, and D are incorrect. Choice B is incorrect because alkenes are unsaturated hydrocarbons due to the presence of double bonds. Choice C is incorrect as alkenes do not contain only single bonds; they have at least one double bond. Choice D is incorrect because alkenes are not derivatives of ammonia; they are a distinct class of organic compounds with carbon-carbon double bonds.

5. In a study where fish are fed different amounts of food daily for four weeks in separate tanks, with fish weight measured weekly, what is the dependent variable?

Correct answer: A

Rationale: The weight of the fish is the dependent variable in this study because it is the outcome being measured in response to the varying feeding amounts. The weight of the fish changes based on the feeding regimen, making it the dependent variable. The type of food used (choice B), number of fish tanks (choice C), and frequency of feedings (choice D) are not the dependent variables in this study. These factors may be independent variables that are manipulated or controlled in the experiment to observe their impact on the dependent variable, which is the weight of the fish.

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