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4 years ago

HELPPPPP!!!!! Please

Biology

1 answer:

Ahat [919]4 years ago

8 0

Astronomy is the study of the stars, planets, and galaxies.

Geology is the study of minerals and rocks. (Good Job on getting this one right!)

Oceanography is the study of water, mainly oceans.

Meteorology is the study of weather and climate.

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_____ splits water into 1/2 O2, H , and e- . A structure of a thylakoid. Letters from A to E indicate definite structures. Lette

Sauron [17]

The luminous reactions begin when light reaches photosystem II. The water molecules provide electrons to the photosystem, releasing oxygen and protons. The letter A represents photosystem II that splits water.

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1. Luminous energy is trapped by chlorophyll in Photosystem II.

2. When the pigment molecules absorb light, electrons provided by water molecules get in a higher energy level.

3. The excited electrons go through the electron transport chain from Photosystem II to a less energetic level in photosystem I.

4. When the excited electrons leave photosystem II, they are replaced by new electrons extracted from the water molecules.

5. Luminous energy absorbed move the electrons from the photosystem I to another electron acceptor, from where they get transported again and used to produce NADPH molecules.

6. When electrons leave Photosystem I, they are replaced by new electrons coming from photosystem II.

7. When the water molecule breaks down, hydrogen ions remain in the thylakoid lumen, from where they are pumped to the stroma by the ATP synthase.

8. The released energy is used to produce ATP molecules.

9. Hydrogen ions go back from the stroma to the thylakoid compartment.

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6 0

3 years ago

Match the following: Hypoxia. A. May be cuased by tumors, mucus, or inflammatory material.B. May be caused by left sided heart f

Ymorist [56]

Answer:

it is c

Explanation:

6 0

3 years ago

When a cell's genetic content is designated as 1n, the cell is said to be _________?

Lunna [17]

Hey there,
The answer is - haploid

Hope this helps :))

~Top♥

3 0

4 years ago

__________ is the situation when one hormone exaggerates the effects of another hormone at the target cell?.

Naily [24]

A situation in which a hormone exaggerates the effects of another hormone at the target cell is called: synergism.

<h3>What is synergism?</h3>

Synergism can be defined as a biological process that typically occurs when two or more hormones produces the same effects of another hormone at the target cell and their combined effects are exaggerated.

Consequently, each of these hormone would act independently of another hormone while having the same effect on the target cell during the synergism of hormones.

Read more on hormones here: brainly.com/question/9474822

6 0

3 years ago

Different seedless plants are grouped based on which characteristic

sertanlavr [38]

Seedless plants are gymnosperms.
Their seeds are EXPOSED and NOT protected by fruits.

Hope this helps! :)

6 0

3 years ago