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Art [367]
3 years ago
6

Which of the following describes the grains found in igneous rocks?

Biology
1 answer:
Ira Lisetskai [31]3 years ago
5 0
D. All 3..................................
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Which of the following is continually passed from one enzyme to the next during the Electron Transport Chain?
AVprozaik [17]

The correct answer is electrons.  

Electron transport chain refers to an array of complexes, which mediates electrons from electron donors to electron acceptors through redox reactions, and combines the transfer of electrons with the transfer of protons through a membrane.  

This produces an electrochemical proton gradient, which instigates the production of ATP. The ultimate electron acceptor in the electron transport chain is oxygen in aerobic respiration and sulfate in anaerobic respiration.  


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3 years ago
In water snakes, body color is controlled by two alleles that display incomplete dominance. Snakes with the BB genotype are brow
Rainbow [258]

Answer:

Phenotypic ratio= 1 Brown : 1 Gray

Explanation:

Genotype of brown snake= BB

genotype of gray snake= Bb

A cross between brown (BB) and gray (Bb) snake obtains progeny in following phenotypic ratio= 1 Brown : 1 Gray

Here, the heterozygous parent, gray snake (Bb) forms two types of gametes in 1:1 ratio while the homozygous dominant parent, brown snake (BB) forms only one type of gamete.

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3 years ago
Some areas of a forest contain rich soil, while in other areas the soil is poor. Plants of a certain species grow taller in the
uranmaximum [27]
A The observed differences in plants height are due to genetics.
6 0
3 years ago
Read 2 more answers
What geological evidence could there be for the presence of an early ocean?
e-lub [12.9K]

Answer:

Volcanic degassing of volatiles, including water vapour, occurred during the early stages of crustal formation and gave rise to the atmosphere. When the surface of Earth had cooled to below 100 °C (212 °F), the hot water vapour in the atmosphere would have condensed to form the early oceans.

Explanation:

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4 years ago
What is an analogy for chloroplast in a school?
Vaselesa [24]
Since chloroplast use energy to make food for plant cells (Photosynthesis) I could compare it to lunch money, and how you have to keep refilling up, and up, just to use it again for food, for yourself.
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