Answer: Option 'B' is correct.
Explanation:
All the iron molecules that are in your body were originally created by a star.
During a star supernova, a very large amount of energy and neutrons are released by stars which allows heavier elements to be produced.
And when there is explosion of star occurs, those elements are found which is used to make DNA and DNA contains large amount of iron molecules.
Hence, Option 'B' is correct.
I think the answer is B - a star! Hope this helps!
circulatory; immune
B)
endocrine; lympathic
C)
circulatory; excretory
Eliminate
D)
circulatory; respiratory
Answer: The correct answer for the fill in the blank is A) Circulatory, immune.
Circulatory system also called cardiovascular system is a vast network of organs and vessels that allow the circulation of blood so as to transport nutrients, oxygen, other gases, and hormones to different parts of the body.
Blood contains different cells like white blood cells, red blood cells, platelets.
White blood cells ( also called leukocytes) work closely with immune system. They provide defense against pathogen ( disease causing organisms) through various ways ( like ingesting foreign material, producing antibodies to clear the antigens). By doing so, they protect us from infection and disease.
It suggests that all species share a common ancestor and that change occurs over time.
This scientific theory, introduced by Charles Darwin, proposes that all living organisms on Earth are interconnected through a shared ancestry. According to this concept, the diversity of life arises through a gradual process of descent with modification. The idea is that species change over time through the mechanisms of natural selection, genetic drift, and other evolutionary forces.
The common ancestor represents the starting point from which different species have branched out, adapting to diverse environments and ecological niches. The evidence supporting this theory includes fossil records, comparative anatomy, molecular biology, and observations of natural selection in action. In essence, the theory of evolution serves as a unifying framework in biology, explaining the unity and diversity of life on Earth.
For more questions on species
#SPJ6
All species share a common ancestor and that change occurs over time
Answer:
D. They attract birds and insects that aid in the pollination process.
Step-by-step explanation
Pollination is essential for the propagation of a plant.
Most pollinators fly, so a bright flower colour will attract them.
Flowers that bloom at night use odours to attract pollinators like moths and bats, which don't see colours.
A is wrong. The pollinators are after the nectar, not the plant.
B is wrong. The plant is not sentient.
C is wrong. A large herbivore isn't deterred by a flower's fragrance.