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Ksenya-84 [330]
3 years ago
13

What are the two main classification of ecosystems?

Biology
1 answer:
Sonbull [250]3 years ago
4 0
B. Terrestrial and Aquatic
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The ability of the human body to break down the red color in beets is controlled by an autosomal dominant allele. The inability
Zinaida [17]

Answer:

Explanation:

<em>Let the ability to break down the red color in beets be represented by the allele </em><em>B</em><em>. The inability would be represented by the allele </em><em>b</em><em>.</em>

A nonsecretor's genotype would be BB or Bb while a secretor's genotype would be bb.

A nonsecretor woman with a secretor father would be a carrier with genotype Bb. A nonsecretor man who in a previous marriage had a secretor daughter would also be a carrier with genotype Bb. If the two marries:

            <em>Bb     x     Bb</em>

<em>            BB    2Bb    bb</em>

1.

(a) probability of their first child will be a secretor girl = probability of having a girl and being a secretor.

Probability of having a girl = 1/2

Probability of being a secretor = 1/4

<em>probability of their first child will be a secretor girl</em> = 1/2 x 1/4 = 1/8

(b) Probability of their first child being a nonsecretor girl = probability of having a girl and being a nonsecretor.

Probability of having a girl = 1/2

Probability of being a nonsecretor = 3/4

<em>Probability of their first child being a nonsecretor girl = probability of having a girl and being a nonsecretor</em> = 1/2 x 3/4 = 3/8

2. <em>Probability that their first two children will be nonsecretors of either sex = probability of their first being a nonsecretor and of either sex and probability of their second being a nonsecretor and of either sex.</em>

  = 3/4 x 3/4 = 9/16

6 0
3 years ago
Compare parasympathetic nervous system vs sympathetic
Galina-37 [17]

Answer:

Parasympathetic nervous system effects are slow or inhibit function, where is sympathetic, is responsible for the intense physical activity.

Explanation:

The autonomic nervous system or ANS is divided into 2 distinct systems on the basis of their effects- the parasympathetic nervous system and the sympathetic nervous system.

Both of these have opposite actions on the functions that they maintain.

The sympathetic nervous system regulates the body for a high level of physical activity and also known as fight or flight. It fasts the functions of the body according to the situation.

The parasympathetic nervous system is having the opposite effect of the sympathetic nervous system slows high energy functions and relaxes the body.  

Thus, the comparison of these nervous systems is mention above.

5 0
3 years ago
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What do Scientists use tools for
barxatty [35]
They use tools to help take precise measurements, carry out experiments, and make observations.
3 0
3 years ago
Inside the uterus a baby is held within two membranes - the chorion and amnion, collectively known as the __________. The membra
Temka [501]
The answer is C.) Sac. More formally known as the amniotic sac. It's also sometimes called the bag of waters. 
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WILL MARK BRAINLIEST!!Which example is not a biomass energy source?
Vinvika [58]

Answer:

The Sun is not a biomass energy source.

Explanation:

Biomass is plant or animal material used for energy production. The Sun is neither plan nor animal material.  Paper is produced by wood, wood chips also, manure is from animals so all those are a biomass energy source.

5 0
3 years ago
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