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yanalaym [24]
3 years ago
15

Don and ellie are trying to conceive a baby. How long should they wait before they suspect infertility?

Biology
1 answer:
hammer [34]3 years ago
7 0

Answer:

They are to wait for at least one year.

Explanation:

Infertility maybe defined as trying to get pregnant without success despite having frequent sexual intercourse for a period of at least one year.

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what is a possible pehenotype of a child that results from a woman with type AB blood and a man with type A blood?
ozzi

Answer:

A

Explanation:

If a woman with type AB blood and a man with type A blood have a child, the genotype will be AA and and AB (that is, a combination of the mother and father's gene).

Phenotype refer to the gene that is actually expressed. In this case, A.

In the example above, there are 2 phenotypes of Type A blood. The type A blood phenotype can result from two genotypes of AA and AB.

7 0
3 years ago
If a person exerts 150 N of force to move 10 meters, then how much<br> work did they do?
Anna [14]
I do t know how to answer this really, but the acceleration of this object is 15 m/s.
4 0
3 years ago
What else is missing from this equation that a plant needs in order to do photosynthesis​
Anon25 [30]

Answer:

The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2.

Explanation:

This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products

7 0
3 years ago
Read 2 more answers
Determine whether the following statement is true or false: Adenosine triphosphate (ATP) is a crucially important energy carrier
sveticcg [70]

Answer:

true

Explanation:

I just did the test

4 0
3 years ago
During what stage does land get ready for the arrival of a new species
34kurt

Answer

           The correct option is B.

Explanation

          Ecological succession of any species is composed of following stages:

A. Migration

            The movement of species from one place to another location for the purpose of setting permanently o temporary is known as migration . Forexample

             Siberian crane (<em>Leucogeranus leucogeranus</em>) that live in the arctic tundra of eastern and western Russia. The eastern population of birds migrate to china while western population of these birds migrate to Iran, India and Nepal during winter season.

B. Ecesis

         The complete establishment of species in new habitat that was completely barren or left barren due to some catastrophe is known as Ecesion. This process is dependent upon the climatic, edaphic and biotic factors. The success of plant depend upon some of the adaptations to withstand the unfavorable conditions which includes both biotic and abiotic conditions.

Forexample

               The process of succession in xerosphere start on barren area from pioneer stage covered by crustose lichen, then foliose lichen followed by moss stage, herbaceous stage and a last by shrub stage.

C. Nudation

       The initiation of new species by major environmental disturbance such as volcano eruption is known as Nudation.

D. Reaction

            It represents the effect of established species on the habitat. Forexample plants alter habitat condition as they grow. They extract raw materials from the environment in large amounts and return metabolic wastes. The waste accumulates in large amounts and differ from the original raw materials, thus altering the environment.  

E. Competition

             The phenomenon which involves struggle for existence between two or more individuals growing in same area, that make excessive demand that are similar in nature on the soil is known as competition.

Such struggle may be in between same species or different species. The competition may be interspecific or intraspecific. Because of completion the weak individuals are eliminated as strong ones are retained.

 


8 0
3 years ago
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