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USPshnik [31]
3 years ago
8

Which of these is an example of gene flow?

Biology
2 answers:
Mama L [17]3 years ago
5 0

The answer is B because I just got 5/5 on the test

Elina [12.6K]3 years ago
4 0
I think the correct  answer from the choices listed above is option A. An example of gene flow would be that German immigrants settle in a colony in Eastern Pennsylvania without mixing with the locals. Gene flow is the movement of individuals from one population to another. It is also called migration.<span />
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Define tissue and explain where it falls in the hierarchy of structural organization
Aliun [14]
<span>The tissue is a group of structurally and functionally similar cells and their extracellular matrix. Grouping of those similar cells enables them to carry out a specific function. In the hierarchy of structural organisation tissue is level between cells and a complete organ. Functional grouping together of multiple tissues forms an organ.</span>
6 0
4 years ago
If an amoeba engulfs a particle of food does it use energy?
vovangra [49]

Answer:

Endocytosis is a form of active transport hence require enegry powered by ATP. The amoeba needs to change shape and engulf and envaginate the particle and then use vessicle transportation to get the materials into the cell. This requires that the cytoskeleton - composed of tubules and filaments - contracts and relax accordingly. This requires energy by ATPs just like the myosin and actin of muscle.

Phagocytosis, another  form of endocytosis, is used by some cells such as immune cells to engulf foreign material and then destroy them by use of lysozymes. This is how phagocytes protect the body from invaders.

8 0
3 years ago
When glucose is present, enzyme IIAglc is __________ and LacY is __________. a. phosphorylated; inhibited b. not phosphorylated;
olga_2 [115]

Answer:

Option B, not phosphorylated; inhibited

Explanation:

Glucose 6 acts as a catobolite repressant . A catobolite repressant which is usually a carbon compound inhibits the operon transcription. In the presence of glucose -6, unphosphorylated enzyme IIAGlc  inhibits the transportation system and hence prevents the utilization of lactose. Glucose‐6‐phosphate and other non‐PTS carbon causes inducer exclusion thereby leading to dephosphorylation of enzyme IIAGl without getting transported.

Hence, option B is correct

5 0
3 years ago
Pleaseeee help meeeee
erastova [34]

Hello love! The answer for your question is D: grass - producer because all energy starts from the producers so the consumers can get energy. Producers are the creators of energy

Hope this helps!!!

7 0
3 years ago
Read 2 more answers
1. An example of a non-renewable resource would be
Nina [5.8K]

Answer:

D. Library Book

Explanation:

This is because library books can not be recycled. Sorry if my answer is wrong, just trying to help.

8 0
3 years ago
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