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sergey [27]
2 years ago
10

How long after the formation of Earth did the first life appear?

Biology
1 answer:
djyliett [7]2 years ago
6 0

Answer:

4.54 billon years

Explanation:

the earliest time that life forms first appeared on Earth is at least 3.77 billion years ago possibly as early as 4.28 billion years

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What characteristics of the lower mantle causes it to contain more liquid than sections in the upper mantle?
masya89 [10]

Answer:

hgoips hehe lol

Explanation:

5 0
2 years ago
3)Amphibians hatch out of their eggs with:
Lunna [17]

Answer: I'd say the answer would be (A)

Explanation:Depending on the Anphibian, they breathe through their lungs and skin at first and develope Gills later in life. Some are born with gills and lungs. But normally they start with lungs first.

5 0
3 years ago
What is used during dissection what is used to feel
e-lub [12.9K]

We have that the  used during dissection what is used to feel  the tissue without using your hand to  touch the specimen is the

  • T-pins

From the question we are told

What is used during dissection what is used to feel

the tissue without using your hand to

touch the specimen?

A. Scalpel

B. Scissors

C. poker

D. T-pins

Generally Different tools have different applications to and uses during dissection.

  • Scalpel

This is a very sharp tool made of metal,Usually used to cut through specimens

  • Scissors

This a tool designed as a two metals sharpened at one end that faces each other, this tool aids in cutting

  • T-pins

This is a tool used commonly in dissections not to cut but rather to hold firmly in lace parts of specimen.This in a way stops the tool user from touching the specimen

Therefore

The  used during dissection what is used to feel  the tissue without using your hand to  touch the specimen is the

  • T-pins

For more information on this visit

brainly.com/question/16172865?referrer=searchResults

4 0
3 years ago
Describe how a volcano would form along a divergent boundary convergent boundary and hotspot
daser333 [38]
For divergent boundary: when the crust of the earth fractures it allows magma to reach the surface. For convergent boundary: When one of the converging plates move underneath the other, a process also known as subduction; the new magma rises and can erupt to form volcanos. For the Hotspot: magma pushes through cracks in the crust to form volcanos. Hope this helps!!
7 0
2 years ago
A man who has male pattern baldness (X^bY) marries a woman who does not carry the allele (X^BX^B). What genotypic ratios would b
JulijaS [17]

Answer:

2X^BX^b:2X^BY

Explanation:

<em>The genotypic ratio of expected of their offspring would be 2</em>X^BX^b<em>:2</em>X^BY<em>.</em>

From the illustration, the genotype of the man with male pattern baldness is X^bY while the genotype of the woman without the baldness allele is X^BX^B.

Crossing the two genotypes in marriage:

                           X^bY   x   X^BX^B

Progeny: X^BX^b    X^BX^b    X^BY       X^BY

<em>Hence, the genotypic ratio of the offspring becomes:</em>

2X^BX^b:2X^BY

7 0
3 years ago
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