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Finger [1]
2 years ago
15

As an individual ages, new neurons and dendrites appear, but others atrophy. Compared to when they were adolescents, adults have

fewer neural connections and their brain size _____ as they continue to age.
Biology
1 answer:
attashe74 [19]2 years ago
3 0

The brain and central nervous system shrink as we age.

<h3>What happens to the brain when we age?</h3>

The brain is one of the most important organs in our body because all the nerve signals are produced there for our body to function.

In the brain we find nerve connections through neurons. A particular aspect of them is that during childhood and adolescence they multiply as we learn new things.

However, once we reach the stage of old age, these nerve connections deteriorate and are reduced, therefore, the size of the brain and the central nervous system decreases.

Learn more about brain in: brainly.com/question/11950231

#SPJ1

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The portion of the uterus that connects to the vagina is the:
rewona [7]
The fundus is the portion of the uterus that connects to the vagina.
8 0
4 years ago
11.1 The Science of Ecology Lesson 11.1: True or False Name __________________ Class ______________ Date ________ Write true if
tangare [24]

Answer:

See explanation below

Explanation:

1. Biotic factors include sunlight, soil, temperature, and water. FALSE

Biotic factors include animals, plants, fungi, bacteria and protists.

2. Like nutrients and water, energy also recycles through an ecosystem. FALSE

3. An ecosystem consists of all the biotic and abiotic factors in an area and their interactions. TRUE

4. Herbivores are a necessary link between producers and other consumers. TRUE

5. A niche refers to the place an organism lives within its ecosystem. TRUE

6. Dung beetles eat animal feces. TRUE

7. Autotrophs make their own food. TRUE

8. Organisms use 90% of the available energy at each trophic level. FALSE

9. Carnivores include lions, polar bears, hawks, frogs, salmon, and deer. FALSE

Deer is a herbivore.

10. Biomass increases at the upper levels of a food chain. FALSE

11. Producers occupy the first trophic level. TRUE

12. Scavengers include vultures and raccoons. TRUE

13. In a complex ecosystem, it is likely that two different species will occupy the same niche. FALSE

14. The habitat is the role of a species in its ecosystem. FALSE

15. A food web shows how energy flows through an ecosystem. TRUE

4 0
3 years ago
Which statement is the most reasonable testable prediction for the hypothesis: All birds can fly?
goblinko [34]

Answer:

"Examine the list of all known species of birds and determine if any species cannot fly" would be the most reasonable answer.

7 0
4 years ago
Is Flower size is a structural adaptation?
Feliz [49]

Answer:

yes

Explanation:

8 0
3 years ago
An ecosystem consists of a community of living organisms
miss Akunina [59]

Answer:

1. interactions

2. environment

3. sun

4. photosynthesis

5. chemical

6. producers

7. food

8. energy

9. organisms

10. herbivores

10. first

12. Heterotrophs

13. second

Explanation:

An ecosystem consists of a community of living organisms interacting  with each other and the environment. The source of energy that fuels most ecosystems is the sun. Plants use the Sun’s energy to produce food in a process called photosynthesis.

Organisms that use energy from the Sun or energy stored in chemical compounds to produce their own nutrients are called autotrophs. They are also called producers because most other organisms depend on autotrophs for food and energy. Heterotrophic organisms that can’t make their own food may obtain nutrients by eating other organisms. A heterotroph that feeds only on plants is called an herbivore. Herbivores are also called first order heterotrophs. Heterotrophs that feed on other herbivores are second order heterotrophs.

6 0
3 years ago
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