Answer the following question given this paragraph: A fully developed placenta, like the one in Figure below , is made up of a large mass of blood vessels from both mother and fetus. The maternal and fetal vessels are close together but separated by tiny spaces. This allows the mother's and fetus's blood to exchange substances across their capillary walls without the blood actually mixing. Q: A fully developed placenta is made up of a large mass of what? Choices: - brain tissues - plant cells - estrogen hormones - blood vessels A:
blood vessels
Answer the following question given this paragraph: Protists and Fungi are two types of eukaryotic organisms. What do they have in common? Protists are the earliest eukaryotes, and this kingdom contains some of the simplest eukaryotes. Many are single-celled organisms. Protists consist of animal-like, plant-like, and fungus-like species. Protists evolved into the other three types of eukaryotes, including fungi. Other than that, these two types of eukaryotes are very different. Fungi are eukaryotic organisms that cannot make their own food and do not "eat. " They must absorb their nutrients, usually from decaying organisms. Q: What eukaryotic organisms cannot make their own food and do not technically eat? Choices: - cells - plankton - proteins - fungi A:
fungi
Q: Answer the following question given this paragraph: Q: What two elements do chloroplasts split water into? Choices: - vaporize and oxygen - Salt and sodium - Carbon and water - hydrogen and oxygen A:
A: hydrogen and oxygen
Question: Answer the following question given this paragraph: 3.4 NITROGEN: RUNNING IN CYCLES Introduction: In the previous assignment, you studied the carbon cycle. In a previous unit, you described the water cycle. Carbon and water are matter. As you learned in the first unit, matter cycles. Nitrogen is another form of matter that cycles. Like water and carbon, nitrogen is essential to life. Also, like water and carbon, its cycles affect you. Therefore it is important that you learn about the nitrogen cycle, how it affects you, and how you affect it. Assignment: There are three parts to this assignment. You must complete all three parts to receive credit for the assignment. Be sure to turn in all three parts at the same time. I will not correct partial assignments. THANKS! PART ONE: 1. Describe the nitrogen cycle. Describe how nitrogen goes from the atmosphere to a form usable to plants, how it is used and excreted by animals, and how it returns to the atmosphere. In your description be sure to explain the words: * decay * denitrification. Q: What cycle vital to plants includes a process called denitrification? Choices: - carbon cycle - sedimentation cycle - photosynthesis - nitrogen cycle A:
Answer: nitrogen cycle
*Question*
Answer the following question given this paragraph: Artificial Selection: Humans used artificial selection to create these different breeds. Both dog breeds are descended from the same wolves, and their genes are almost identical. Q: Humans create different breeds of organisms using what kind of selection? Choices: - speciation - biased selection - natural selection - artificial selection A:
**Answer**
artificial selection
Q: Answer the following question given this paragraph: 8.2 | The Light-Dependent Reactions of Photosynthesis By the end of this section, you will be able to: Explain how plants absorb energy from sunlight Describe short and long wavelengths of light Describe how and where photosynthesis takes place within a plant How can light be used to make food? When a person turns on a lamp, electrical energy becomes light energy. Like all other forms of kinetic energy, light can travel, change form, and be harnessed to do work. In the case of photosynthesis, light energy is converted into chemical energy, which photoautotrophs use to build carbohydrate molecules (Figure 8.9). However, autotrophs only use a few specific components of sunlight. Q: Photosynthesis involves reactions that are dependent on what? Choices: - air - water - food - light A:
A: light