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garri49 [273]
3 years ago
10

Which pair of elements would likely have similar valency and thus similar chemical behavior?

Biology
1 answer:
DedPeter [7]3 years ago
5 0
The pair of elements which would likely have similar valency and similar chemical behavior is BORON AND ALUMINIUM.
Both boron and aluminium have three electrons in their outermost shells. The possession of the same amount of electrons in their valence shells will make the elements to behave in the same manner chemically in term of bond formation and chemical reactions.
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Terry saved some of the tooth-like objects within the hagfish's round mouth to analyze their composition in his mentor's biochem
Triss [41]

Answer:

The correct answer is option a. "scales".

Explanation:

The missing information of this question is the following:

"Terry catches a ray-finned fish from the ocean and notices that attached to its flank is an equally long, snakelike organism. The attached organism has no external segmentation, no scales, a round mouth surrounded by a s*cker, and two small eyes. Terry concludes it is a hagfish."

Gymnophiona is a group of amphibians characterized by having dermal scales as integumentary element. These amphibians are tetrapods and their scales are comprised of several layers of unmineralized collagenous fibers. The skeleton of the hagfish is made entirely of cartilage, therefore it is very likely that the tooth-like objects of hagfish's are made of cartilage, just like the scales of the tetrapod.

7 0
3 years ago
Is a biosphere is smaller than anecosystem.​
brilliants [131]

Answer:

Yes!

Explanation:

From largest to smallest: biosphere, biome, ecosystem, community, population, and organism. Hope I helped :)

It'd Be Lovely to get Brainliest .

5 0
3 years ago
Read 2 more answers
If research is restricted, then the new discoveries made are limited. Which action is most likely to increase the number of disc
Rasek [7]
The answer is D. Increasing government funding of research
6 0
3 years ago
The greenhouse and enhanced greenhouse effects refer to the return of approximately ______ percent and greater than ______ perce
Sunny_sXe [5.5K]

Answer:

The greenhouse and enhanced greenhouse effects refer to the return of approximately <u>80</u> percent and greater than <u>80</u> percent of the heat radiated by Earth.

Explanation:

During natural greenhouse effect :

. Solar radiation reaches the earth

. Re-radiation of heat occurs

. Less re-emitted heat

. More heath escapes into space

Hence the greenhouse effect refers to return of 80% of heat radiated by Earth.

While during Human Enhanced Greenhouse effect :

. Solar radiation reaches earth

. Re-radiation of heat occurs

. More re-emitted heat

. Less heat escapes into space

Hence the enhanced greenhouse effect refers to return of more than 80% of heat radiated by Earth .

5 0
3 years ago
A clay plate has a volume of 30.0cubic centimeters and a mass of 59.1grams. Calculate its density.
Nataly_w [17]

The density of the clay plate is  1970 kg m⁻³

the problem we are dealing with is related to density, which is the mass of a unit volume of a material substance. The formula for calculating density is d = M/V, where d is density, M is mass, and V is volume. Since we are provided with the volume of the clay plate which is 30.0cubic centimeters and the mass of the plate which is 59.1grams

so,V= 30 cm⁻³=3x 10-5 m and  M=  59.1grams= 0.0591 kg

Therefore, the density of the plate is:  M/V

=>d = 1970 kg m⁻³

To know more about density refer to the link  brainly.com/question/15164682?referrer=searchResults.

#SPJ1

5 0
1 year ago
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