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eimsori [14]
3 years ago
12

What 3 things pass through a cell using passive transport?

Biology
1 answer:
Hunter-Best [27]3 years ago
7 0
A bag of blood or cells
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Scientific evidence suggests that the entire human population descended from just several thousand African migrants about 50,000
zhannawk [14.2K]

Answer: Fossils and primitive drawings in several digs around the world continents.

Explanation: I would expect to find fossils and primitive drawings of these several thousand African migrants on different areas around the world. I would like to find primitive bones, specially skulls and teeths and stones with drawings and old writings representing the life of these small population in Africa who made the entire human population.

5 0
3 years ago
How do nutrients get to the cells in a flatworms solid acoelomate body?
wariber [46]
The nutrients get to the cells in a flatworms solid acoelomate body by diffusion process. Flatworms feed primarily on protozoa and bacteria, smaller worms and tiny organisms, dead or alive, that they come across. Based on the species of the flatworms , they also consume plant materials. They rely on diffusion to transport oxygen and nutrients to their internal tissues.
8 0
3 years ago
Sugars are used for energy and what else??
skad [1K]

Answer:

The body uses sugars from carbohydrates which supply the brain with glucose as the brain uses it as a "fuel source".

<h2>Why is glucose so important for the brain?</h2>

Quick answer: It takes a lot of energy to receive, interpret, and send signals via your neurons. Glucose is the simples sugar that can be used to make energy.

Cells require energy to carry out their typical everyday tasks. The simplest sugar that our cells can utilize for energy is glucose. Since your neurons are specialized cells, many additional cells are also present to support or protect them. All of the senses you can experience utilizing incoming neurons (from the body to the brain) are transmitted to and interpreted by the brain, including touch, pain, vibration, temperature, smell, sight, hearing, taste, and others. Signal reception and interpretation need energy. Additionally, your brain instructs your body to "do" things, which uses energy. Additionally, you spend a significant portion of your waking hours "thinking," which consumes energy. This explains why 20% of the glucose in your body is used by our teeny, tiny, little brains.

Thank you,

Eddie

8 0
2 years ago
Imagine that a researcher is examining the positioning of synaptic clefts in a region of the nervous system of adult mice. In on
Setler [38]
This is likely a mutant mouse (as synaptic clefts are typically 10 to 20 nm wide). Given that neurotransmitters act over short distances, this mouse may demonstrate delayed responses to stimuli, or no responses at all.



That’s the answer
4 0
3 years ago
1. Which of the following is the process of reproducing or creating a new plant or
Yanka [14]

Answer:

plant propagation

Explanation:

Plant propagation is the process which grows new plants from a variety of sources: seeds, cuttings, and other plant parts. Plant propagation can also refer to the man-made or natural dispersal of seeds.

4 0
3 years ago
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