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MA_775_DIABLO [31]
3 years ago
9

Prokaryotic cells are characterized by their lack of a

Biology
1 answer:
snow_tiger [21]3 years ago
8 0

The answer is A.) Nucleus

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Which fish is able to eat prey many times larger than itself
andriy [413]
I believe it is the 'black swallower' 
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6 0
2 years ago
Why do you think people like Ben Saunders explore extreme environments? Do you think you’d like to explore an extreme environmen
adell [148]

One major reason for exploring extreme environments is to find new resources. An example of a resource is the search for a new antibiotic. Extreme environments have rare species endemic to the regions which can offer different insights from the normative environment we are used to.

No, I would not. This is because the risk of death is higher in an extreme environment. Example of these risks are deadly diseases or harsh climate. The body may be unable to adjust to the extreme environment hence may be unable to restore homoeostasis;  such as in restoring body heat in extremely cold environments hence leading to hypothermia.  

7 0
3 years ago
At the molecular level, gene duplication often produces novelty in a lineage. This process provides another evolutionary pathway
alukav5142 [94]

Answer:

Bridgham et al. (2006) showed that the interaction between a steroid hormone (aldosterone-M) and its receptor (mineralocorticoid) evolved by Darwinian gradualism. In this work, the authors demonstrated  a primitive affinity between the hormone and its receptor that was initially present in chemically similar but more ancient ligands. This result has implications in understanding the association between gene duplication and the evolution of hormone signaling pathways. For example, in invertebrates, this work reinforces the importance of gene duplication in the existing interaction between paralogous glucocorticoid receptors and their receptor mineralocorticoid genes that were derived from duplication (Thornton 2001).

The publications above cited are the following:

J.T. Bridgham, S.M. Carroll, and J.W. Thornton (2006). Evolution of hormone-receptor complexity by molecular exploitation. Science, 312(5770), 97-101.

JW Thornton. Evolution of vertebrate steroid receptors from an ancestral estrogen receptor by ligand exploitation and serial genome expansions, Proc Natl Acad Sci USA (PNAS), 2001, vol. 98 10 (pg. 5671-5676).

6 0
2 years ago
Marking brainliest
Oksi-84 [34.3K]

Answer:

nuclear

Explanation:

doesnt cause poulltion

6 0
2 years ago
Read 2 more answers
Can anyone say the answer plz​
Alik [6]

Answer:

The answer to the first question should be b.

Explanation:

Throughout your body, minerals help build bones and provide structural support. In your mouth, calcium helps harden your enamel and strengthen your jawbone. Hope this helps!

4 0
3 years ago
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