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kvv77 [185]
2 years ago
5

Darwin hypothesized that new species could appear gradually through small changes in an ancestral species. What experiment did h

e conduct to test this hypothesis?
Biology
2 answers:
Semmy [17]2 years ago
8 0

Answer: B

<h2>the breeding of pigeons</h2>

Choices:

the breeding of finches

the breeding of pigeons

the observation of humans

the observation of dog breeds

Marianna [84]2 years ago
3 0
He watched animals in their natural habitat and started research on them. Each animal have a unique place to live and they have all different ways to survive in their habitat. That is evolution, small changes became a huge help for these animals for their struggle to survive. He saw how animals could evolve so quickly into a new habitat, using their mental and physical skills to do that.
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Human trials have indicated an inverse relationship between blood lead level and calcium intake. While milk isn’t an antidote to let’s say, lead poisoning, the dietary calcium inhibits the lead absorption. This sort of poisoning is incredibly dangerous to the systems of the human body, and the ingredients within the milk help to defend against it. The purpose of the milk is to dilute the ingested poison.
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2 years ago
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A farmer is being troubled by coyotes eating his sheep. in an attempt to solve the problem, he kills a sheep and laces its body
Rom4ik [11]
The correct answer is "conditioned taste aversions".

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7 0
1 year ago
One sign that does not tend to indicate hiv has moved on to aids is ______. a pcp infection
melamori03 [73]
<span>Pneumocystic pneumonia. This is a fungal infection that is very common in people with HIV. Before medication was available, about 3/4 of people with HIV came down with this infection.</span>
7 0
1 year ago
When the micturation reflex is initiated, the brain responds by __________ action potentials (APs) in somatic motor neurons, res
kozerog [31]

Answer:

1. Reducing

2. External

Explanation:

The external urinary sphincter, also called as external urethral sphincter consists of skeletal muscles. During micturition reflex, the micturition center present in the brain serves to inhibit the somatic motor neurons by reducing their action potential. These somatic motor neurons innervate in the external urinary sphincter.  

Inhibition of somatic motor neurons of the external urinary sphincter results in relaxation of the sphincter to facilitate the act of urination.

3 0
2 years ago
Angiosperms, flowering plants, and gymnosperms, cone-bearing plants, reproduce using egg, sperm, and produce seeds. In gymnosper
Mnenie [13.5K]

The most common way these trees undergo pollination is through seeds and pollen.

The pollination is done with help of wind and birds where pollen transform from one plant to another.

<u>Explanation:</u>

The plants that undergoes pollination process through the seeds that are present in it are called as Angiosperms. These contains fruits. The seeds are usually present inside these fruits. Flowering plants are also called as Angiosperms.

These fruits and flowers are absent in gymnosperm. Even then they contain seeds inside the leaves surface. They will undergo pollination with these naked seeds. It is the fruits, flowers and the endosperm that are present in the seeds that help us to find difference between these two.  The only common thing that exists between these two are seeds and pollen with which they pollinate.

In gymnosperms, pollen is transferred from male cone to female cone through wind or birds. Now, the pollen is germinated into pollen tubes and sperm for egg fertilization.

3 0
1 year ago
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