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3 years ago

Parts of the inner ear include what?

1 answer:

3 0

Parts of the inner ear include the cochlea, the semi-circular canals, and the lateral canal (which is one of the three semi-circular canals, also called the horizontal canal).

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3. What is crossing over? When does it occur during meiosis? Why did you have difficulty modeling this element of meiosis using

FrozenT [24]

Crossing over happens in Meiosis 1 only. In Prophase 1 a cells chromatin (chromatin = chromosomes that have not condensed yet) condense and pair up forming homologous chromosomes (paired = XX (2 chromosomes together)). When this happens segments/ alleles of the chromosomes pairing up swap over. This creates genetic diversity as each chromosome is different, it has parts from its pair. This leaves every chromosome unique and individual.

I hope this helps, sorry some of the vocab is rather technical. By the way I would suggest watching the 'Crash Course: Meiosis' on YouTube, this really helped me when I was learning this topic. :D

5 0

3 years ago

Read 2 more answers

The bases found in the nucleotides of a DNA molecule are<br>&<br>there are chromosomes are

Tomtit [17]

Answer:

The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands.

4 0

2 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

2 years ago

Why does the energy in sugar need to be converted into ATP

Tema [17]

Because the cells can only use energy in form of ATP.

Its like you can't run a diesel truck on petrol.

6 0

3 years ago

What characteristics do monocots have? What characteristics do dicots have?

LuckyWell [14K]

Answer: MONOCOT

1) seeds with one cotyledon.

2) the plants have fibrous root system

3) leaves have parallel venation

4) the petals of flowers are trimerous(3 petals)

DICOT

1) seeds with two cotyledon.

2) the plants have taproot system.

3) leaves have reticulate venation

4) the petals of flowers are pentamerous (5 petals)

Explanation:

5 0

3 years ago