What does the continued presence of vestigial structures like the whale pelvis and femur shown in Figure 16-1 suggest about the impact vestigial structures have on fitness?

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Answer 1

Answer:

well it might help you want to ecercise more

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The vultures do not have hair on their heads? explain

Answers

They have bald heads and usually don't have feathers on their necks, either. Bare skin in those areas helps them stay cleaner why they stick their head into a carcass to feed. With no feathers to trap gunk on a vulture's head, meat and blood just dry and flake off. Vultures are able to eat rotting food because they have a strong immune system. And they play a super-important role in our environment as a clean-up crew!

Which of the following would most likely be a cause of primary succession?

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Primary succession occurs in an area which was previously did not have any vegetation. Most common reasons are:

-Erosion
-Physiography
-Elevation

Compared to most animals, the growth of most plants is best described as

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derivative

Plant development is seeded in the perspective that a cell divides itself to form a tissue and tissues grouped will become an organ and the organism itself. The cell hierarchial model is followed in the development in both of these diverse however seemingly similar organisms.

Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. If two heterozygous individuals with polka-dot tails mate, what's the probability of the phenotype and genotype combinations of the offspring?A. 25 percent chance of a polka-dot tail and 75 percent chance of a solid colored tail (25 percent PP; 50 percent Pp; 25 percent pp)
B. 75 percent chance of a polka-dot tail and 25 percent chance of a solid colored tail (25 percent PP; 50 percent Pp; 25 percent pp)
C. 75 percent chance of a polka-dot tail and 25 percent chance of a solid colored tail (75 percent Pp; 25 percent pp)
D. 50 percent chance of a polka-dot tail and 50 percent chance of a solid colored tail (50 percent PP; 50 percent pp)

Answers

The answer is B. 75 percent chance of a polka-dot tail and 25 percent chance of a solid colored tail (25 percent PP; 50 percent Pp; 25 percent pp)

If P represents dominant allele (a polka-dot tail), p represents recessive allele (a solid colored tail), then heterozygous individuals have Pp genotype. All alleles will combine each other:

Parental generation: Pp x Pp
Offspring: PP Pp Pp pp

Thus, the probability of PP genotype is 1/4 (there is only 1 of total 4 possible genotypes), which is 25%. The probability of Pp genotype is 1/2 or 50%, and the probability of pp genotype is 1/2 or 25%.

Talking of phenotypes, the P allele is dominant and each genotype containing P allele will have the polka-dot phenotype. In this case, there are 3 out of 4 genotypes containing P allele - 1 PP and 2 Pp. So, the probability of the polka-dot tail is 3/4 or 75%, leaving the probability of the solid color tail 1/4 or 25%.

Which traits make fungi more related to animals than to plants?heterotrophic, chitin in cell walls
autotrophic, cellulose in cell walls
vascular tissues, heterotrophic
vascular tissues, autotrophic

Answers

Answer: heterotrophic, chitin in cell walls

Fungi is a group of eukaryotic organisms, which can be grouped into Kingdom of Fungi. This kingdom includes organisms ranging from small microorganisms such as yeast and molds to large mushrooms. The fungi are different from plants, animals and bacteria as they possess chitin in their cell walls. However, these organisms can be more related to animals rather than to plants as they cannot produce their own food by the process of photosynthesis like plants. These organisms are dependent upon other organisms and their dead remains to obtain their food.

Answer:

The correct answer is heterotrophic and chitin in cell walls.

Explanation:

Fungi refer to a kingdom of eukaryotic, heterotrophic species like the animals, as they attain their food from other species. That is, by captivating nutrients from the environment, either from the non-living or living organic matter. This is due to the fact that they do not contain chlorophyll pigment, unlike plants that are autotrophic in nature, as they produce their own food.

The fungi are non-vascular in nature, as they do not possess vascular tissues like phloem and xylem, unlike the plants. The cell wall of fungi is mainly formed of chitin, unlike plants that comprise cellulose in their cell walls.

In figure 12-5, what is adding base pairs to the strand

Answers

the answer is DNA polymerase

C. DNA Polymerase.

Because its the enzyme that joins individual nucleotides to produce a new strand of DNA.

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Plant cells undergo photosynthesis to produce glucose, a usable form of chemical energy. The energy produced by plants becomes the base of an energy pyramid. Given the situation seen above, what reactant is missing in order for photosynthesis to occur? A) water B) ozone C) chlorophyll D) radiant energy

Responses of the immune system to usuallyharmless environmental substances are known as(1) antigen production(2) chromosomal mutations(3) pathogens(4) allergies

Please help me and please use your own word and do not copy and paste form google thank youWhat is a macromolecule

If two substances are chemically combined and there is a release ofenergy, the reaction is described asa. exothermic.b. analytic.c. endothermic.d. catalytic.