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3 years ago

Which characteristic is shared by all living things

2 answers:

6 0

Describes characteristics shared by all living organisms. All organisms must be composed of cells, metabolize, reproduce, and respond to their environment.

Alex777 [14]3 years ago

4 0

Aerobic or anaerobic atp exchange

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The two parent plants are the P generation, or parent generation. Create a Punnett square to show their offspring, the F1 genera

Luda [366]

For example:

If both parents are with heterozygous genotype Aa (A is dominant allele for the trait and a is recessive allele for the trait) , than

P: Aa x Aa, the offspring will be

F1: AA Aa Aa aa (one dominant homozygous, one recessive homozygous and two heterozygous.

3 0

3 years ago

Evolution is a useful theory because it helps us:

tresset_1 [31]

Answer: C

Explanation:

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3 years ago

Do people from alaska have smaller penile organs due to the cold weather? (Serious)

Nataly_w [17]

Answer:

yes they can, its how they adapted to the cold, just like the people who have adapted with diving and fishing underwater, they can see better than other people underwater.

Explanation:

7 0

3 years ago

Read 2 more answers

A population of 150 fish have two alleles for the size of a black spot on their sides: large spot alleles and small spot alleles

MAVERICK [17]

Answer:

1. genetic drift; 2. natural selection; 3. gene flow; 4. natural selection

Explanation:

1. A fish net captures twenty fish, all who happened to have large spots: 

The mechanism of evolution that is playing out in this situation is most likely genetic drift. Genetic drift occurs when a random change occurs, resulting in the selection of a number of individuals by chance, rather than based on their level of fitness. The fish with large spots allele were selected against by chance, not necessarily because the fish with the small spot alleles were better fitted.

2. Small spotted fish escape from predators better:

The situation here is natural selection. The small spotted fish possess a greater fitness as they become well adapted to escaping from predators better than the large spotted fish, which gives confers on them a greater fitness to be selected for against the large spotted fish.

3. 15 large spotted fish move into this population:

The movement or introduction of new individuals i nto a population is what is referred to as gene flow in evolution, which is another mechanism of evolution that changes the allele frequency of the original population.

4. Fish-eating birds catch large spotted fish more easily:

This is another example of natural selection. The small spotted fish possess a greater fitness which makes them not easily preyed upon by Fish-eating bird easily, compared to large spotted fish. Natural selection favors the fish with small spotted alleles against the large spotted fish, and as a result, more small spotted fish would survive and reproduce more offspring with the small spotted alleles compared to those with large spotted alleles.

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3 years ago

increased dopamine activity is associated with symptoms similar to those seen in ____, whereas reduced dopamine activity produc

max2010maxim [7]

The correct answer is "letter. d Schizophrenia and Parkinson's disease".

Dopamine is described as a neurotransmitter that enables manipulate the mind's reward and delight centers. Dopamine also enables regulate movement and emotional responses, and it allows us now to see the rewards itself, however it shows us how to reach and act towards them.

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3 years ago