Q: Organisms that lack both a nucleus and membrane-bound organelles are known as what, in general? Read this paragraph and choose the correct option from the provided answers: Two of the three domainsBacteria and Archaeaare prokaryotic, meaning that they lack both a nucleus and true membrane-bound organelles. However, they are now considered, on the basis of membrane structure and rRNA, to be as different from each other as they are from the third domain, the Eukarya. Prokaryotes were the first inhabitants on Earth, perhaps appearing approximately 3.9 billion years ago. Today they are ubiquitousinhabiting the harshest environments on the planet, from boiling hot springs to permanently frozen environments in Antarctica, as well as more benign environments such as compost heaps, soils, ocean waters, and the guts of animals (including humans). The Eukarya include the familiar kingdoms of animals, plants, and fungi. They also include a diverse group of kingdoms formerly grouped together as protists. Choices: - photosynthetic - barren - trophic - prokaryotic A:
prokaryotic

Q: What are fungus-like protists? Read this paragraph and choose the correct option from the provided answers: Fungus-like protists are molds . They are absorptive feeders on decaying organic matter. They resemble fungi, and they reproduce with spores as fungi do. However, in other ways, they are quite different from fungi and more like other protists. For example, they have cell walls made of cellulose , whereas fungi have cell walls made of chitin. Like other protists, they have complicated life cycles with both asexual and sexual reproduction. They are motile during some stages of their life cycle. Two major types of fungus-like protists are slime molds and water molds. Choices: - feces - viruses - bacteria - molds A:
molds

Q: Q: Only finished mrnas are exported from the nucleus to what? Read this paragraph and choose the correct option from the provided answers: 9.3 Transcription In prokaryotes, mRNA synthesis is initiated at a promoter sequence on the DNA template. Elongation synthesizes new mRNA. Termination liberates the mRNA and occurs by mechanisms that stall the RNA polymerase and cause it to fall off the DNA template. Newly transcribed eukaryotic mRNAs are modified with a cap and a poly-A tail. These structures protect the mature mRNA from degradation and help export it from the nucleus. Eukaryotic mRNAs also undergo splicing, in which introns are removed and exons are reconnected with single-nucleotide accuracy. Only finished mRNAs are exported from the nucleus to the cytoplasm. Choices: - amino acids - cerebellum - electron - cytoplasm A:
A: cytoplasm

Question: Q: A hypothesis is scientific only if it can be tested by what? Read this paragraph and choose the correct option from the provided answers: For a hypothesis to be testable means that it is possible to make observations that agree or disagree with it. If a hypothesis cannot be tested by making observations, it is not scientific. Consider this statement:. Choices: - independent variable - making a conclusion - carbon dating - making observations A:
Answer: making observations

*Question*
Q: Electrical energy consumed can be expressed as the product of power multiplied by what else? Read this paragraph and choose the correct option from the provided answers: Electrical energy consumed can be determined by multiplying power by time . Recall the equations for mechanical and thermal energy/work . An important idea is the efficiency of an electrical device: the fraction of electrical energy consumed that goes into doing useful work , expressed as a percentage. Choices: - work - energy - speed - time A:
**Answer**
time

(Q).
Q: Producing sperm and secreting testosterone are the main functions of what system? Read this paragraph and choose the correct option from the provided answers: The main functions of the male reproductive system are to produce sperm and secrete testosterone. Choices: - pollination - endocrine system - female reproductive system - male reproductive system A:
(A).
male reproductive system