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galina1969 [7]
3 years ago
10

Which of these is a nessacary condition for a hypothesis to be useful

Biology
2 answers:
VMariaS [17]3 years ago
7 0
D. The hypothesis makes predictions about an experiment
Diano4ka-milaya [45]3 years ago
3 0
<span>D.) The hypothesis makes predictions about an experiment

Hope this helps!</span>
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A farmer decides to go into the business of raising trout for tourists who enjoy fishing. She builds six trout ponds and stocks
Nastasia [14]

Yes the following statements about her trout is likely true Because the ponds are different and the populations are likely to experience different mutations, the populations will likely diverge evolutionarily, but only over many generations.

Explanation:

The effect of genetic drift can be seen in all populations but the most is seen in small population. The change in allele frequency due to the sampling error would lead to evolution of the species.

Bottleneck effect is when a population gets reduced due to some natural disaster. Her friends were not right about bottleneck effect.

So it is clear that no bottleneck effect will occur as each pond have different chance or rate of mutation and the change in alleles will be different. The  trouts will evolve independently in the different ponds and pass on the traits to their progeny.

Genetic drift does not take into account for the harm or benefit of the alleles that are passed on.

5 0
3 years ago
Under certain circumstances, potassium ions ( K + ) in a cell will move across the cell membrane from the inside to the outside.
dexar [7]

Answer:

8.18 × 10 ⁻²¹.

Explanation:

The potential energy may be defined as the energy stored in the rest objects. This energy is important for the maintenance of the concentration gradient in the cell.

The change in the potential energy can be calculated as follows:

W = v2-v1 × q.

Here, the charge of the proton is considered because k+ ions has been used.

W= 0 - ( - 70. 5 mV) × 1.602 * 10^-19 C.

W= 8.18 × 10 ⁻²¹J.

Thus, the answer is 8.18 × 10 ⁻²¹.

5 0
3 years ago
What is lost to the environment at each of the trophic levels of this ecosystem? a nutrients from the soil b food sources c heat
Masja [62]

Answer:

C) heat

Explanation:

An ecosystem comprised of biotic and abiotic factors interacting together, in a specified environment.

trophic levels of this ecosystem is the food chain or the level an organism is in the feeding level, this range from producer to tertiary consumer.

If we follow the pyramid of tropic level known as " Energy level" Heat is lost to the environment at each of the trophic levels of the ecosystem. The producer which has large area of the pyramid has a large energy, and as the primary consumer(second tropical level) which are herbivores feed on the producer(first tropical level)grass , it only takes just like 10% energy from the producer and the secondary consumer ( third tropical level) herbivores feed on primary consumer, and only get away with 10% of the energy and as the trend goes up the "Energy keep decreasing inform of heat" like that.

8 0
3 years ago
I need help with one problem. When limiting factors ________, diversity in populations _________. A. decrease; decreases B. incr
Sphinxa [80]
When limiting factors increase, diversity in populations decreases. In this sense "limiting factors" can be anything from a lack of resources to a lack of food, meaning it's harder for the population to survive. 
5 0
3 years ago
Please select the word from the list that best fits the definition
MrMuchimi

Answer:

The answer is heredity

4 0
3 years ago
Read 2 more answers
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