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Lerok [7]
3 years ago
5

Most of the animals in existence today had their origins during the:

Biology
1 answer:
frutty [35]3 years ago
4 0

Answer: During the Cambrian Explosion of Animal Life

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The nurse observes rebound tenderness in the abdomen of a patient. what condition does this finding indicate?
Sonbull [250]
<span>The finding this indicates is most likely peritonitis. Rebound tenderness refers to pain felt when pressure is removed instead of applied, such as taking your hand away from holding a wound or perceived injury such as chest pain. In this situation there is usually an infection and it can be quite deadly. The pain is caused by seepage or a tear somewhere in the intestines.</span>
4 0
3 years ago
You would like to know whether the progeny of a pair of mated fruit flies are distributed among the resulting four phenotypic cl
Effectus [21]

Answer:  

C. The differences between the observed and expected counts are too large to be attributed to chance.

Explanation:

The p-value of the statistic represents the chance that the observed count is based on luck or chance. When p value too high, the research can't be used since the chance that its not represent real condition are too high. Most researchers use 5% (0.05) as the cutoff of something called statistically significant. In this research, the p-value is 0.04 or 4%, so it is statistically significant.

3 0
3 years ago
In a cross between two heterozygous tall and purple flowers (TtPp x TtPp), what would the
Goryan [66]

Answer:

9:3:3:1

Explanation:

This question involves two different genes coding for height and flower color respectively. The first gene posseses allele T (dominant) and t (recessive) while the second gene possesses allele P (dominant) and p (recessive).

According to this question, two heterozygous tall and purple flowers are crossed i.e. (TtPp x TtPp). Each parent will produce the following gametes combination:

TtPp - TP, Tp, tP, tp

Using these gametes in a punnet square, the following proportion of offsprings will be produced:

T_P_ (tall, purple) = 9

T_pp (tall, white) = 3

ttP_ (short, purple) = 3

ttpp (short, white) = 1

Hence, the ratio of this cross is 9:3:3:1

5 0
3 years ago
With respect to life expectancy, because ________ are at higher risk for disease and early death, they reap somewhat larger gene
Nataly_w [17]

Answer:

The correct answer to fill in the blank is: D) men.

Explanation:

According to different studies made over the years, it has been revealed that men have a lower life expectancy (76 years) than women (81 years), Japanese Americans (87 years) and individuals of middle socioeconomic status.

Since men are the group with the higher risk, they can benefit more from changes in their lifestyle like exercising and having healthy diets.

6 0
3 years ago
What functions do parts of the heart do?
frosja888 [35]
Pumps blood to the parts of the body and also it's-self
3 0
3 years ago
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