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Novosadov [1.4K]
3 years ago
3

Meselson and Stahl designed an experiment using E. coli bacteria to determine the method of DNA replication.

Biology
2 answers:
mojhsa [17]3 years ago
8 0

Answer:

true

Explanation:

zysi [14]3 years ago
3 0
It is true it is true it is true it is true it is true it is true it is true
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An excess of nitrates in a lake could lead to
alexgriva [62]

Answer:

The growth and aquatic plants and algae, but also the death of fish and other invertebrates.

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3 years ago
A student claims the phosphorylation cascade is not a necessary function of the signal transduction pathway in determining if a
vivado [14]

The student is wrong. Phosphorylation cascade is important in cell signaling. Most cell signaling involves cyclic AMP (synthesized from ATP). The cAMP activates Protein Kinases (PKA) that phosphorylates protein substrates involved in the signaling pathways such as the GPCR. This helps in amplifying the initial signal.






4 0
4 years ago
According to the cladogram, which organisms have roundworms as a common ancestor? mollusks and flatworms sponges and chordates f
sladkih [1.3K]

Answer:mollusks, echinoderms, chordates, and annelids

Explanation: Cladograms are diagrams made to link different organisms to a common ancestor, with the use of Cladograms the relationship between organisms will be established and organisms will be grouped together based on their common features or characteristics.

Molluscs, Echinoderm,Chordates and annelids are of a common ancestor, they are all invertebrates with COELOM.

8 0
3 years ago
Read 2 more answers
Pesticides are used on crops to prevent the crops from being eaten by pests such as insects. The chemicals in the pesticides kil
Yuliya22 [10]

Answer:

<em>The correct option is A) The chemicals in the pesticides could run off into water sources and contaminate them, which would kill many aquatic species.</em>

Explanation:

Although pesticides can be helpful in eliminating the pests which thrive on crop plants, yet the usage of pesticides can be harmful in a number of ways. Increase in the usage of pesticides can be harmful for humans when they utilize food from such crops which is loaded with pesticides. Also, increased usage of pesticides causes the pesticides to run off in nearby rivers and lakes due to conditions such as a flood. The toxic pesticides kills the aquatic life present in that lake or river.

6 0
4 years ago
Ich e6 gcp describes standards that apply to:
melomori [17]
This describes standards that apply to good clinical practice relative to clinical trials involving human subjects or health products used by humans. ICH stands for International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. ICH brings together regulatory authorities and pharmaceutical industry. E6 was a series of guidelines to ensure good clinical practice (GCP).
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3 years ago
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