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3 years ago

What causes leaves to change color in the Fall?

Biology

1 answer:

Mrrafil [7]3 years ago

4 0

Answer:

Chlorophyll Breaks Down

But in the fall, because of changes in the length of daylight and changes in temperature, the leaves stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor.

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Complete the following statements using as many of the following terms as are appropriate: mitosis, meiosis I (first meiotic div

goldenfox [79]

Answer:

a. The spindle apparatus is present in cells undergoing mitosis and meiosis. the spindle is crucial for chromosome sorting.

b. Chromosome replication occurs just prior to mitosis and meiosis I. DNA needs to be copied during S fase to have enough DNA and transfer it to the daughter cells.

c. The cells resulting from mitosis in a haploid cell have a ploidy of n.

Mitosis produces identical cells.

d. The cells resulting from meiosis II in a diploid cell have a ploidy of n. meiosis is the only process that causes chromosome reduction (assuming no errors).

(e). Homologous chromosome pairing regularly occurs during meiosis I. Each daughter cell needs 1 chromosome of each kind

(f). Non-homologous chromosome pairing regularly occurs during none. This is kind of an error.

(g). Physical recombination leading to the production of recombinant progeny classes occurs during Meiosis I

(h). Centromere división occurs during meiosis II and mitosis

(i) Non-sister chromatids are found in the same cell during meiosis II

3 0

4 years ago

Some microbial control agents are able to _____ cell proteins by breaking bonds that maintain the native state, three-dimensiona

Igoryamba

Answer: option A - denature

Explanation:

Microbial control agents are KNOWN to DENATURE cell proteins as a step in pathology of many diseases.

And because PROTEINS ACTIVITY depends on their three dimensional configuration, microbe attack and BREAK the bond in order to penetrate the cell membrane.

So, the ONLY right option is A

6 0

3 years ago

Which of the following processes depends on the formation of vesicles and would therefore be blocked?

Eva8 [605]

Export and import of solid particles though the membrane (endo/exocytosis)

6 0

3 years ago

Which of these statements best explains why the star chart does not show the exact locations of the sun and planets?

Romashka [77]

Answer:

Stars do not emit sufficient light to help locate them accurately in the night sky. The revolution of Earth makes the sun and the planets move on the ecliptic with respect to the stars.

Explanation:

Rotation and revolution causes changes in star charts. When the Earth rotates, move a way from the sun and when you have rotated far enough it will be nights and you will observe stars but as the seasons changes you will see different stars because u will change to different position. The revolution of the Earth make the stars and sun move ecliptic.

4 0

4 years ago

Read 2 more answers

one definition of a problem drinker is one who must drink to functionwith life. How does the navy define "alcoholism:.

Firdavs [7]

Answer:

For a military personnel on active duty here is an outlook on binge drinking. Binge drinking for women is defined as taking 4 or more drinks per sitting and for men 5 or more drinks per sitting.

Explanation:

6 0

4 years ago