Recent questions in Biology

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An area with a high population of crayfish in local lakes and rivers has begun experiencing acid rain, rain that has a pH of 3.0 - 4.0. Predict how this rain will impact the crayfish population.

Jlguenego asked Nov 13, 2024

by Jlguenego

8.2k points

1 answer

3 votes

70.7k views

Who was Carolus Linneaus and what were his contributions to classification and species identification? What is binomial nomenclature?

Manish Nahar asked Nov 13, 2024

by Manish Nahar

7.6k points

1 answer

2 votes

124k views

Regarding the white rami communicantes: a. Found exclusively in the sympathetic nervous system b. Present in both sympathetic and parasympathetic systems c. Connects spinal nerves to parasympathetic ganglia

Joe Hildebrand asked Nov 13, 2024

by Joe Hildebrand

8.5k points

1 answer

4 votes

6.8k views

How do farmers on large produce farms ensure that they can grow and harvest their crops even with a lack of rain?

Alftheo asked Nov 13, 2024

by Alftheo

8.4k points

1 answer

2 votes

86.1k views

How have humans enabled emerging diseases to spread more rapidly?

Yorkshireman asked Nov 13, 2024

by Yorkshireman

8.8k points

2 answers

4 votes

199k views

Would evolution of AZT resistance still occur automatically if any of the following were true: HIV's reverse transcriptase never made mistakes; there were only a tiny handful of HIV virions (say, ten)

Zyoo asked Nov 13, 2024

by Zyoo

7.8k points

1 answer

4 votes

175k views

Which one of the following components stimulates contraction of a skeletal muscle? Select Answer: - synaptic cleft - muscle fiber - motor neuron - acetylcholinesterase

Fishtoaster asked Nov 13, 2024

by Fishtoaster

7.6k points

1 answer

3 votes

211k views

Plasma is composed of what percent of water? What about the remaining percent? What percent do plasma proteins make up of the plasma?

Jogy asked Nov 13, 2024

by Jogy

7.8k points

1 answer

4 votes

129k views

Association cortices receive information directly from which of the following? A. Caudate and Putamen B. Motor and Premotor Cortex C. Thalamus D. Both A and C E. Both B and C

Tim Bielawa asked Nov 13, 2024

by Tim Bielawa

8.4k points

1 answer

1 vote

54.7k views

What results from the exchange of DNA segments between nonhomologous chromosomes? A) Point mutation B) Translocation mutation C) Insertion mutation D) Deletion mutation

Runawaykid asked Nov 13, 2024

by Runawaykid

8.0k points

1 answer

0 votes

183k views

How would the mycorrhizae increase the plants’ survival compared to plants without mycorrhizae? a) Mycorrhizae enhance root growth, increasing water and nutrient absorption. b) Mycorrhizae reduce soil

Janki Gadhiya asked Nov 13, 2024

by Janki Gadhiya

8.3k points

1 answer

5 votes

85.9k views

Three fates of reactive B cells to self antigens

M A Salman asked Nov 13, 2024

by M A Salman

8.1k points

1 answer

5 votes

95.6k views

The following are exocrine glands: a) adrenal b) sweat c) salivary d) lacrimal (tears)

StathisG asked Nov 13, 2024

by StathisG

7.4k points

1 answer

0 votes

111k views

Which of the following statements are correct regarding immature thymocytes in a transgenic mice with TCR recognizing self peptide xcv and immunized with peptide xcv. a. Immature T cells will mature and

Martin Wang asked Nov 13, 2024

by Martin Wang

7.2k points

1 answer

5 votes

69.7k views

Which of these is not a part of the excretory system? A. The bladder OB. A villus OC. A ureter O D. A nephron

JLT asked Nov 13, 2024

by JLT

8.3k points

1 answer

5 votes

125k views

The ankle, or tarsus, contains bones. A) 2 B) 5 C) 6 D) 7 E) 8

Mgronber asked Nov 13, 2024

by Mgronber

7.6k points

1 answer

2 votes

93.6k views

I don’t think it’s a Black Phoebe, as they have black beaks not white. Is it a Grosbeak? This was taken in the Pacific NW. Sorry for the pic quality. If this isn’t the right place to post this, please

Nemeth asked Nov 13, 2024

by Nemeth

7.9k points

1 answer

3 votes

130k views

Which structure immediately encloses viral nucleic acid? Capsid, nucleic acid. Identify all the components of the nucleocapsid. False. True or False.

Daniel Mendel asked Nov 13, 2024

by Daniel Mendel

8.1k points

1 answer

0 votes

5.2k views

Burns ____. a-are caused by heat and not light b-are among the least common injuries in a welding shop c-are divided into four categories d-have a high risk of infection because of the dead tissue

Camiloqp asked Nov 13, 2024

by Camiloqp

7.6k points

1 answer

2 votes

218k views

Which of the following types of feathers are fluffy and aid in trapping air? 1) Down feathers 2) Flight feathers 3) Contour feathers 4) Filoplumes

B B asked Nov 13, 2024

by B B

8.6k points

1 answer

1 vote

154k views

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