BIOLOGY HIGH SCHOOL

What is Amber made up of?​

Answers

Answer 1
Answer:

Answer:

Amber, which is in fact a fossil, is often held in the same class as semi-precious stones such as turquoise and jade because of its ornamental uses. Unlike these stones, amber is not mineralized. Rather, it is simply the fossil of resin. Most that exists today is between 30 and 90 million years old. derived from the resin of extinct species of trees.

Explanation:
Answer 2
Answer: Amber is fossilized resin from conifers.

Related Questions

Once a month jason experiences a headache that is severe, lasts 6-8 hours, and is accompanied by vomiting and extreme sensitivity to light. he most likely has which type of headache?
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CANT GET WRONGThe human respiratory system consists of various organs that work together to accomplish the vital task of bringing oxygen into the body. One organ listed is part of a system that helps with digestion rather than respiration. The organ that is incorrectly paired with a respiratory function is the A) nose - filters and warms air B) bronchi - moves air into the lungs C) diaphragm - muscle that powers breathing D) esophagus - moves air from the nose into the lungs

Which of the following is not a natural cause of climatic change?A.Human activity
B. Solar activity
C. Earth's tilt
D. Volcanic activity

Answers

a human activity :) hope i helped 

The inversion of terrestrial and aquatic energy pyramids is dependent upon the nature of that environment’s particular _______.a. decomposers
b. climate
c. primary consumers
d. producers

Answers

The correct answer is (d.) producers. The inversion of terrestrial and aquatic energy pyramids is dependent upon the nature of that environment's particular producers. Producers are the one who give and supply the foods that is being consumed by the consumers. 
Hello! The correct answer would definatley be D. Producers
I am taking this test as well.
hope this helps!!!! :)

How did Watson and cricks model of DNA incorporate the research of other scientists ?

Answers

They looked and saw Rosalind Franklin's X-ray crystallography which sparked them to think about the double-helix structure, and from there, they played around with cafeteria items (forks and spoons and whatnot) to create a model that finally worked.

Answer:

How did Watson and Crick describe the structure of DNA?

Watson and Crick showed that each strand of the DNA molecule was a template for the other. During cell division the two strands separate and on each strand a new "other half" is built, just like the one before. ... By 1962, when Watson, Crick, and Wilkins won the Nobel Prize for physiology/medicine, Franklin had died.

Explanation:

Tratando-se sobre atividades aeróbias, segundo Cooper (1972), qual das alternativas abaixo não está correta? a) Aumento da eficiência dos pulmões e coração. b) Aumento das cavidades do coração, aumento do volume total de sangue e volume máximo de oxigênio (aumento da absorção, captação e transporte de oxigênio). c) Aumento do número e tamanho dos vasos sanguíneos. d) Melhora da tonicidade muscular e dos vasos sanguíneos. e) Diminuição do colesterol bom (HDL), aumento do colesterol mal (LDL) URGENTE

Answers

Answer:

Diminuição do colesterol bom (HDL), aumento do colesterol mal (LDL)

Explanation.

Esto debe revertirse, debe ser una disminución del colesterol malo y un aumento del colesterol bueno.

Básicamente, el ejercicio aumenta el HDL y reduce los triglicéridos. En condiciones normales, los ejercicios aeróbicos no reducen el LDL. Sin embargo, cuando se combina con cambios en la dieta y una pérdida de peso bien controlada, el efecto combinado podría reducir el LDL.

En las condiciones estándar, el ejercicio recomendado por semana es de 150 minutos de ejercicios suaves o 75 minutos de ejercicio vigoroso por semana.

Por lo tanto, cuando se calcula por semana, esto sería un promedio de 20 minutos de ejercicio por día.

Andar en bicicleta, caminar, hacer jardinería y aeróbicos acuáticos son ejemplos prácticos de ejercicios leves o moderados que podrían aumentar el HDL. Sin embargo, el baile aeróbico, el trote y el salto de cuerda son ejemplos de ejercicios vigorosos que, cuando se combinan con la dieta y la pérdida de peso, conducen a una disminución del LDL.

This should be reversed, it should be a decrease in bad cholesterol and an increase in good cholesterol.

Basically, exercise boosts the  HDL and lower triglycerides. Under normal conditions, Aerobic exercises do not reduce LDL. However, when combined with dietary changes and well-monitored weight loss the combined effect could lower LDL.

Under the standard conditions, the recommended exercise per week is 150 minutes of mild exercises or 75 minutes of vigorous exercise per week.

Therefore, when calculated per week this would be an average of  20 minutes of exercise per day.

Biking, walking, Gardening, and water aerobic are practical examples of mild or moderate exercises that could boost HDL. However, Aerobic dancing, jogging, and rope jumping are examples of vigorous exercises which when combined with dieting and weight losses leads to a lowering of LDL.

in certain species of roses, white roses and red roses are incompletely dominant to each other. when a red rose and a white rose are crossed, a pink rose is produced. what is the probability of producing a white rose when a red rose is crossed with a pink rose

Answers

The answer is 0%.

If white and red roses are incompletely dominant, the phenotypes are as following:
AA - red roses
AB - pink roses
BB - white roses

So, a cross between a red (AA) and a pink rose (AB) will result in only red or pink roses:
Parents:            AA     x      AB
Offspring:      AA    AA    AB     AB

Answer:

o%

Explanation:

If white and red roses are incompletely dominant, the phenotypes are as following:

AA - red roses

AB - pink roses

BB - white roses

So, a cross between a red (AA) and a pink rose (AB) will result in only red or pink roses:

Parents:            AA     x      AB

Offspring:      AA    AA    AB     AB

A Russian citizen has illegally obtained a Siberian tiger and is trying to sell the tiger’s fur in the United States. What treaty does this violate?

Answers

CITES Convention on International Trade in Endangered Species. 
This treaty, officially in place in 1975, prevents the trade of illegal and endangered species overseas. The treaty covers the sale of wild animals and plants and aims to protect species from a trade that results in a threat to their survival. There is currently 181 parties within the agreement, including the United States.

Answer is cites

Explanation  
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