All categories

3 years ago

1. True-or-false: All of the substances present in nature are made up of less

Biology

2 answers:

KonstantinChe [14]3 years ago

4 0

Answer:

False

Explanation:

there are billions of known molecules.

Sati [7]3 years ago

3 0

The answer is false

You might be interested in

Abiotic factors, like water, are critical to most food chains. True or False?

Ierofanga [76]

<span>That statement is true
Abiotic factors (such as weather and environment) will determine which organism will be superior compared to another. For example, Lion will be placed as the highest in the food chain if they're in Savanna environment. But, if we place that lion in the middle of the ocean, the lion will not has the superiority that it has on land.</span><span />

8 0

3 years ago

Read 2 more answers

Does anybody know what this is please I’m giving out brainliest so help quickly:)

777dan777 [17]

Answer:

I think it's A but I'm not completely sure

6 0

3 years ago

Collectively, the hollow cavities in the maxillae, ethmoid, sphenoid, and frontal bones are called the ____________ sinuses..

slamgirl [31]

The answer to this question would be: paranasal sinus.

There are a few sinuses near the face area. The sinus can be classified based on the bone that makes then to sinus maxillae, ethmoid, sphenoid and frontalis. This structure frequently gets infected causing sinusitis. Sinusitis patient can complain pain or feel the sinus got filled with some liquid.

8 0

4 years ago

- Which is an advantage to biomass energy? *

KATRIN_1 [288]

Answer:

D. There will always be waste produced that can be used for energy.

Explanation:

Biomass energy is a renewable energy source because its does not have limited supply. We can always grow trees and crops, and waste will always exist.

7 0

3 years ago

Read 2 more answers

In hamsters, we can examine the genes for coat color and eye color which are linked:B = brown coat, b = white coat, G = green ey

Inessa [10]

Answer:

10.2 cM

Explanation:

Given,

pure breeding parent 1 : BBgg = brown coat and pink eyes

pure breeding parent 2 : bbGG = white coat and green eyes

BBGG X bbgg = F1 = BbGg ( All are brown with green eyes )

When F1 progeny is test crossed with white coat and pink eyes hamster:

BbGg X BbGg = F2 =

brown, pink eyes = 99 = parental

white, green eyes = 103 = parental

brown, green eyes = 12 = recombinant

white, pink eyes = 11 = recombinant

Recombination frequency =

(total number of recombinants / total progeny ) * 100

= [( 11 + 12 ) / ( 99 + 103 + 12 + 11 )] * 100 = (23/225)*100 = 0.102 * 100 = 10.2 %

1 % recombination frequency = 1 cM distance between genes

Hence, the distance between B and G gene is 10.2 cM

4 0

4 years ago