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djverab [1.8K]
3 years ago
9

Which of the following can be determined through the examination of fossils?

Biology
1 answer:
dlinn [17]3 years ago
6 0
C and D can be immediately eliminated because the behavior and habits of an animal cannot be determined accurately through fossils. A would be hard to know unless additional things were studied. 

B is left. Fossils can prove the existence of dinosaurs, and they can be used to determine their characteristics.

ANSWER-B-The existence and characteristics of extinct dinosaurs
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The situation in which some individuals have greater reproductive success than other individuals in a population. Along with var
professor190 [17]

Answer:

The situation in which some individuals have greater reproductive success than other individuals in a population. Along with variation and heritability, it is one of the three conditions necessary for evolution by natural selection.

There are so many factors that contributed to this over time, reproductive success differs and it could be attributed to hereditary and variation as well. Most often, the hereditary plays the most role out of all as the viability of both eggs and sperms could have been inherited from parents or being affected as a result of environmental factor or nutrition or other factors.

For instance, if one has a rhesus factor of negative and went ahead to marry another male counterpart with negative rhesus factor, this sedomly leads to miscarriage which could have been controlled had it been they were thoroughly counseled. Furthermore, physical factor such as accident could damage one spermatical vessicles that houses the sperm cells which render such an individual to be unable to donate a viable sperm cell for reproduction.

Those with high rate of reproductive success thrives as result of having many offspring which increases their chances of having more offspring than those with little success rate.

Explanation:

6 0
3 years ago
The relative location of four genes on a chromosome can be mapped from the following data on crossover frequencies Genes B and D
kykrilka [37]

Answer:

3. CABD

Explanation:

The gene mapping refers to providing position to the genes on the chromosomes.  The first gene map was constructed by the Alfred Sturtevant on the basis of recombinant produces or recombination frequency which was calculated.

The gene mapping refers to providing position to the genes on the chromosomes.

In the given question to construct gene map:

1. Look for the highest recombination frequency that is 50% between the C and D.

2. Now look for second-highest value and place the gene accordingly.

3.Similarly, place the genes in the decreasing order of recombination frequency and this will result that the sequence of the genes is- CABD.

Thus, Option-3 is correct.

5 0
3 years ago
What are the three main ways that common ancestry may be shown through homologies
Harrizon [31]

Answer:

Homology is a study of similar characters found in two species because of common ancestry.

Explanation:

1.Morphological homology: Species placed under same taxonomic category exhibit similar anatomical structures.

2.Ontogenetic homology: Species belongs to same taxonomic category embryological similarities

3.Molecular homology: Species show molecular similarities such as DNA,RNA and protein

An example of homology is seen in the skeletal strycture of vertebrates. That is arm of a human,leg of a cat,fin of a whale and wing of a bat.

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6 0
3 years ago
Jonah and Cathy were sure that they had correctly answered most of their exam questions. However, they each scored less than 60
Alenkasestr [34]

Answer:

The correct answer is : Overconfidence.

Explanation:

A person who thinks his or her sense of direction or judgement is more accurate than it is actually is is known as overconfident, and this phenomenon is known as the overconfidence.

In this case, Jonah and Cathy attempted most of the question of the exam and secured less than 60% on the exam which suggests they have less knowledge than they thought they know, it is a sign of overconfidence.

Thus, the correct answer is overconfidence.

8 0
3 years ago
Which prokaryotic organism shows up as old as the oldest fossils
Murljashka [212]
D. Cyanobacteria one of the first beings
5 0
3 years ago
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