Recent questions in Biology

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Which best describes a scientific theory? A. A hypothesis that is proven true with an experiment B. An educated guess about an aspect of nature C. An idea that is supported by many different experiments

JDurstberger asked Nov 17, 2024

by JDurstberger

8.8k points

2 answers

4 votes

51.0k views

What type of twins is produced if both eggs are fertilized simultaneously in the same mother?

Mike Petrovich asked Nov 17, 2024

by Mike Petrovich

8.1k points

1 answer

4 votes

125k views

Compare the two procedures used to obtain the cells needed for preparing a fetal karyotype?

Marinda asked Nov 17, 2024

by Marinda

7.6k points

1 answer

4 votes

166k views

Artificial ventilation may result in the stomach becoming filled with air, a condition called: A) gastric distention. B) vomitus. C) abdominal-thrust maneuver. D) acute abdomen.

Peter Hawkins asked Nov 17, 2024

by Peter Hawkins

7.8k points

1 answer

1 vote

183k views

IL-4 is induced in a CD4 T helper 2 cell under the direction of the transcription factor _____

Booji Boy asked Nov 17, 2024

by Booji Boy

7.6k points

1 answer

0 votes

65.2k views

What are the four nitrogenous bases that make up the "rungs" of a DNA molecule, connecting the two strands? (A) Adenine, inosine, uracil, and guanine (B) Adenine, thymine, inosine, and guanine (C) Adenine,

Borek Bernard asked Nov 17, 2024

by Borek Bernard

8.3k points

1 answer

2 votes

127k views

Dierdre thinks it makes sense for women to be caretakers in the home because she believes women are more nurturing and communal than men. What is MOST likely Dierdre’s view of the roles of men and women

Geoffrey Booth asked Nov 17, 2024

by Geoffrey Booth

8.3k points

1 answer

4 votes

64.8k views

People who are intolerant to gluten or have coeliac disease need to avoid: A. barley, corn and rice B. what, corn and rice C. wheat, barley and rye? D. wheat, corn and quinoa

Justin O Barber asked Nov 17, 2024

by Justin O Barber

8.5k points

1 answer

0 votes

89.2k views

Darwin's theory of evolutionary ethics falls into which argument for the origin of ethics?

Jeutnarg asked Nov 17, 2024

by Jeutnarg

8.4k points

1 answer

5 votes

225k views

How many significant figures are in the quantity 400 m? A. 1 B. 2 C. 4 D. 3

DRH asked Nov 17, 2024

by DRH

7.8k points

2 answers

4 votes

69.9k views

Suppose a scientist measures the amount of DNA per cell of a particular diploid species at various stages of meiosis. She finds that the meiotic cells contain 3.7 pg, 7.3 pg, or 14.6 pg of DNA. Match each

Roperklacks asked Nov 17, 2024

by Roperklacks

8.2k points

1 answer

0 votes

72.4k views

How does macroevolution differ from microevolution? 1) Microevolution includes the origination, diversification, and extinction of species over long periods of evolutionary time 2) Microevolution occurs

Mjktfw asked Nov 17, 2024

by Mjktfw

8.3k points

1 answer

5 votes

178k views

The most frequently methylated base in vertebrates is what?

Robert Crovella asked Nov 17, 2024

by Robert Crovella

8.4k points

1 answer

1 vote

106k views

Two species of cattail (Typha) live in shallow water along the shoreline of ponds. Although T. agustifolia can live by itself in water 0—20 cm deep, in the presence of T. latifolia, it occurs only in water

Avirk asked Nov 17, 2024

by Avirk

8.2k points

1 answer

4 votes

177k views

What may new bubbling indicate in a pleur-vac

Eric Anderson asked Nov 17, 2024

by Eric Anderson

8.5k points

1 answer

2 votes

78.3k views

Describe the animals living and working conditions in the winter.

Alyxandria asked Nov 17, 2024

by Alyxandria

8.5k points

1 answer

5 votes

226k views

What are the causes of secondary keratinisation defects?

Manuel Zapata asked Nov 17, 2024

by Manuel Zapata

8.6k points

1 answer

2 votes

26.5k views

If recombination occurred in 100% of the meiotic cells then what would be the percentage of the recombinant chromosome?"

ARobertson asked Nov 17, 2024

by ARobertson

8.0k points

2 answers

2 votes

143k views

Could sexually inactive life for an organism, for whatever reason, actually correspond to longer health span?

Trsvchn asked Nov 17, 2024

by Trsvchn

8.5k points

1 answer

1 vote

62.2k views

In some flowers, a purple pigment is synthesized from a red precursor pigment. In the absence of all pigment, flowers are white. A pure-breeding plant with red flowers was crossed to a pure-breeding plant

Jair Reina asked Nov 17, 2024

by Jair Reina

8.1k points

1 answer

1 vote

62.1k views

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