Answer the following question given this paragraph: Competition within a species is called intraspecific competition. It leads to natural selection within the species, so the species becomes better adapted to its environment. Q: Competition within a species is called what? Choices: - reproducible competition - species competion - internal competition - intraspecific competition A:
intraspecific competition
(Question)
Answer the following question given this paragraph: Chemical reactions constantly occur inside the cells of living things. However, under the conditions inside cells, most biochemical reactions would occur too slowly to maintain life. That's where enzymes come in. Enzymes are catalysts in living things. Like other catalysts, they speed up chemical reactions. Enzymes are proteins that are synthesized in the cells that need them, based on instructions encoded in the cells' DNA. Q: What proteins synthesized in cells act as catalysts? Choices: - hormones - virophages - byproducts - enzymes A:
(Answer)
enzymes
Ques: Answer the following question given this paragraph: Figure 7.6 Meiosis and mitosis are both preceded by one round of DNA replication; however, meiosis includes two nuclear divisions. The four daughter cells resulting from meiosis are haploid and genetically distinct. The daughter cells resulting from mitosis are diploid and identical to the parent cell. Q: Meiosis and what process are both preceded by one round of dna replication; however, they differ in producing haploid or diploid daughter cells? Choices: - fertilization - cloning - photosynthesis - mitosis A:
Ans: mitosis
(Q).
Answer the following question given this paragraph: Figure 17.5 Viruses can be complex in shape or relatively simple. This figure shows three relatively complex virions: the bacteriophage T4, with its DNA-containing head group and tail fibers that attach to host cells; adenovirus, which uses spikes from its capsid to bind to the host cells; and HIV, which uses glycoproteins embedded in its envelope to do so. Notice that HIV has proteins called matrix proteins, internal to the envelope, which help stabilize virion shape. HIV is a retrovirus, which means it reverse transcribes its RNA genome into DNA, which is then spliced into the host's DNA. (credit "bacteriophage, adenovirus": modification of work by NCBI, NIH; credit "HIV retrovirus": modification of work by NIAID, NIH). Q: Hiv is a retrovirus, which means it reverse transcribes its rna genome into what? Choices: - atp - ribosomes - amino acid chains - dna A:
(A).
dna
Ques:Answer the following question given this paragraph: Evolution focuses on past life forms and how they turned into present life forms. The history of life on Earth demonstrates how the first cells formed, turned into simple life forms, and then became more complex plants and animals. The studies of Charles Darwin have reshaped and influenced all aspects of biology. The myriad evidence of evolution demonstrates the importance of the theory of evolution by natural selection. Lastly, the current focus on evolution demonstrates that evolution is a continuous and ongoing process that continues today. Q: Focused on evolution, the studies of what man have reshaped and influenced all aspects of biology? Choices: - Linnaeus - scopes - Albert Einstein - charles darwin A:

Ans:charles darwin
Answer the following question given this paragraph: An experiment is a controlled scientific test that often takes place in a lab. It investigates the effects of an independent variable on a dependent variable. Q: What is a controlled scientific test that often takes place in a lab? Choices: - a testing - a viewing - an observeration - an experiment A:
an experiment