BIOLOGY HIGH SCHOOL

Which of the following structures are found in gymnosperms but not in angiosperms? A. Seeds
B. Pollen
C. Flowers
D. Cones

Answers

Answer 1
Answer: Its cones because gymonsperms have cones not flowers and angiosperms have flowers not cones. Hope I helped. :)

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HIGH SCHOOL

The organic compounds in living things are organized into groups: carbohydrates, lipids, proteins, and nucleic acids. Which two compounds do living things most commonly use as an energy source? proteins and carbohydrates
lipids and nucleic acids
carbohydrates and lipids
proteins and nucleic acids

Answers

Carbohydrates and lipids are the two compounds that living things most commonly use as an energy source .

BIOMOLECULES:

  • Biological molecules in living systems include the following: carbohydrates, lipids, proteins and nucleic acids.

  • These biomolecules or organic compounds have varying functions in the cell. One of these functions is that they can be broken down to release energy for the cell.

  • Among the four major biomolecules or organic compounds, carbohydrates and lipids are the two compounds that living things most commonly use as an energy source because they store high amount of energy in their bonds.

Learn more about organic compounds at: brainly.com/question/5994723?referrer=searchResults

COLLEGE

Choose two parents. remember that blue-winged butterflies have the genotype bb , re d-winged butterflies have the genotype bb, and the genotype bb produces purple-winged butterflies. what are the genotypes and phenotypes of the parents? what are the genotypes and phenotypes of the offspring?

Answers

Answer:

Genotype of Parents - Bb

Phenotype of parents - Purple Winged parents

Genotypes and Phenotypes of Offsprings

BB- Blue winged butterfly offspring

bb - red winged butterfly offspring

Bb - Purple winged butterfly offsprings

Explanation:

Here , three type of offsprings are produce

a) Butterflies having blue wings

b) Butterflies having red wings

c) Butterflies having purple wings

Let us assume the Blue wing allele is represented by "B", Red wing allele is represented by "b" .

Here, purple winged butterflies are produced which means that both the alleles of blue and red wings are codominant , which means that they both expresses their trait.

Now, we will work out the genotype of offsprings first

a) Butterflies having blue wings - BB

b) Butterflies having red wings - bb

c) Butterflies having purple wings - Bb

On the basis of genotype of offsrpings the genotype of parents would be

Bb

Which means both the parents would be heterozygous with purple coloured wing

Cross check -

when two purple winged heterozygous butterflies are crossed, the following offsprings are produced

             B                   b

B           BB                 Bb

b           Bb                 bb

BB- Blue winged butterfly offspring

bb - red winged butterfly offspring

Bb - Purple winged butterfly offsprings

Genotype refers to the set of genes in our DNA which is responsible for a particular trait, while the physical expression or characteristic of that trait is known as the phenotype.

For this case, to know the genotype and phenotype of the offsprings and the parents, we will use Punnett Square. 

If both parents have Bluewings (BB), all their offsprings will also have bluewings (BB).

Likewise, if one of the parents have purple wings (bb) while the other has blue wings (BB) all their offsprings will have red wings (Bb).

If one of the parents have bluewings (BB) while the other has red wings (Bb), 50% of the offsprings will have blue wings (BB), while the other 50% will have red wings (Bb).

If one of the parents has red wings (Bb) while the other one has purple wings (bb), 50% of their offspring will have red wings (Bb), while the other will have purple wings (bb).

Lastly, if both parents both have purple wings (bb), all their offsprings will have purple wings.


MIDDLE SCHOOL

Why can a macroscopic amount of liquid that is contained change with the shape of the solid container holding it? A. Liquid molecules and atoms take on the characteristics of the solids with which they interact.
B. Liquid molecules and atoms easily vibrate and only appear to change shape in the container.
C. Liquid molecules and atoms are able to slip around each other and fill in gaps between them.

Answers

Answer:

C. Liquid molecules and atoms are able to slip around each other and fill in gaps between them.

Explanation:

The liquid is a state of matter that has no definite shape. In fact, it can adapt to the shape of its container. This is because of the reason that molecules in the liquid phase have high kinetic energy and weak binding forces. The high energy keeps them moving freely and thus can take the shape of it its container. On the other hand, in solids, the binding forces are stronger and molecules have very little energy to move freely.

Example: If we melt a solid, the molecules initially have less energy. However, when we heat them, they gain energy and start moving. Upon further heating, they will have enough energy to break the bondings and move around. This is why the solid structure will change to the liquid.

HIGH SCHOOL

Which organelle do the ribosomes bind to in this final step? A. Golgi apparatus. B. Mitochondria. C. Lysosome. D. Endoplasmic reticulum.

Answers

That would be the endoplasmic reticulum
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