Which of the following is NOT a characteristic of birds?

a.

internal fertilization

c.

ectothermic

b.

amniotic eggs

d.

live in a variety of environments

Elemento vital para todas las especies que habitan el planeta

Give a scenario where a cell may need to perform a form of endocytosis and exocytosis

In which structure does the fertilized egg develop? ovary fallopian tube uterus vagina

What hypothesis did the researchers test in this study? what hypothesis did the researchers test in this study? reproductive isolation increases with geographic distance between dusky salamander populations.

Because of changes over time, the most accurate weather forecasts are A. analog forecasts. B. long-term forecasts. C. seven-days forecasts. D. short-term forecasts.

What is the responsibility of a scientist? O A. To earn money O B. To study the physical world O C. To influence voters O D. To run governments

Which organ of the body stores the waste materials produced by the kidneys?

In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette

On earth viruses are not considered living systems because they cannot reproduce on their own ... what could we assume if we found viruses anywhere else in the universe

Name the functions of the four components of the digestive system: G1 Tract