The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.)
Answer:
D) homologous pairs of chromosomes form tetrads
Explanation:
During prophase I, the homologous chromosomes condense and become visible as the x shape we know, pair up to form a tetrad, and exchange genetic material by crossing over.
Explanation:
The embryonic stage is the third to the eighth week after fertilization. that should be the ansewr
Answer: Water, Oxygen, and Carbon Dioxide
Explanation: The water travels to get to the root of the plant so it could help the plant grow. The oxygen travels through the somata so it could be a waste from the plant through the process of photosynthesis. The carbon dixoide travels in as an input for photosynthesis.