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Aliun [14]
3 years ago
12

Describe the unique appearance of diatoms. what chemical compound composes their outer covering, and what is this shell called?

how does the diatoms' habitat enable them to photosynthesize?
Biology
1 answer:
Natasha2012 [34]3 years ago
6 0
Diatom Cells are enclosed in a cell wall made up of silica or hydrated silicon dioxide namely frustule. The frustule has small walls where nutrients enter, enabling it to perform photosynthesis the same way plants do.
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According to this food web, which of the following shows at least two organisms that hawks eat?
melomori [17]
I would say the answer is D ! Sorry if I’m wrong .
5 0
2 years ago
Do male and female offspring possess the same likelihood of carrying the colorblindness trait in their genotype
Katen [24]

Complete question:

Punnet squares for genes found in sex chromosomes are unique in that the pattern of inheritance of these traits is gender-specific. For example, examine the following Punnet square for color blindness, a trait found in the X chromosome (Y chromosome carry only a few genes but they do not possess enough coded information to initiate the development of the male).

Xcb represents the X chromosome carrying the color blindness trait. The allele for color blindness is recessive to the normal form of the gene (X).

Punnet square:

                                      Mother

                                Xcb             X

Father         X          X Xcb        X X

                  Y          Xcb Y        X Y

Do male and female offspring possess the same likelihood of carrying the colorblindness trait in their genotype?

Answer:

<em>YES. Male and female offspring </em><u><em>will have the same likelihood</em></u><em> of carrying the colorblindness trait in their genotype. </em>

Explanation:

Due to technical problems, you will find the complete explanation in the artached files.

Download pdf
6 0
2 years ago
What is atomosper hydrogen ​
morpeh [17]

Answer:

<em>Atomic hydrogen efficiently scatters ultraviolet radiation emitted by the Sun, and the amount of scattered light sensitively depends on the amount of H atoms that are present in the atmosphere.</em>

3 0
2 years ago
What determines which individuals will survive and pass their traits on to the next generation?
Karolina [17]

Answer:

Natural selection

Explanation:

this is where the term "survival of the fittest" comes from. The toughest survive and make offspring and the weak don't.

8 0
2 years ago
If one parent has type B blood and the other type O blood what percentage of the child's blood will be B, O, A?
kirill115 [55]

Answer:

If one parent has blood type B and the other parent has blood type O, the percentage of the blood type of the offspring will depend on the genotype of the parent with blood type B.

Explanation:

Knowing the blood type of the offspring of the cross between parents with blood type B and O raises two possible scenarios, depending on whether the genotype of the parent (type B) is B|B or B|O.

Blood type is an inherited trait and is characterized by the presence or absence of surface antigens A and B in the red blood cells, which genetically behave as co-dominant traits.

  • <em>Blood type A</em><em> contains antigen A and its genotype can be A|A or A|O. </em>
  • <em>Blood type B </em><em>contains the B antigen, whose genotype can be B|B or B|O. </em>
  • <em>Blood type AB </em><em>contains both antigens and a single A|B genotypic expression. </em>
  • <em>Type O blood lacks surface antigens, and is the recessive trait so its genotype is O|O.</em>

<u>Scenario 1: Parent with genotype B|B.</u>

In this case, knowing that the genotype for type O is always O|O, all offspring would be of blood type B, genotype B|O.

B|B X O|O

Alleles    B    B

O          B|O B|O

O          B|O B|O

100% of the offspring would be of blood type B.

<u>Scenario 2: Parent with genotype B|O.</u>

In this case, 50% of the offspring will have blood type O and 50% B.

B|O X O|O

Alleles    B    O

O           B|O O|O

O           B|O O|O

In no scenario would offspring of blood type A be possible.

8 0
2 years ago
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