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liq [111]
3 years ago
8

How was the grand canyon formed?

Biology
2 answers:
Korvikt [17]3 years ago
8 0
I want to say it was erotion from water
Digiron [165]3 years ago
8 0
The specific geologic processes and timing thatformed<span> the </span>Grand Canyon<span> spark lively debates by geologists. The general scientific consensus, updated at a 2010 conference, holds that the Colorado River carved the </span>Grand Canyon<span> beginning 5 million to 6 million years ago.</span>
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Many proteins are made and excreted from the cell. Using the list, put the cellular events in order. a. Vesicles containing prot
Irina-Kira [14]

Answer:

c. Proteins and lipids are made on the ER membrane and put in vesicles.

a. Vesicles containing proteins and lipids fuse with the Golgi bodies.

d. The Golgi bodies tag the molecules to signal their ultimate delivery.

b. Vesicles pinched off from the cristernae carry the molecule to its location.

Explanation:

Proteins are made by the ribosome machinery of the rough endoplasmic reticulum. The proteins made need to be packaged before they are sent outside the cell to their location. If the proteins are not packaged and tagged, then they will be degraded by different enzymes present in the cell. So, the packaging of the proteins is done by the Golgi-complex. After packaging is done and tags are added to the proteins, the proteins move to the outside of the cell in vesicles.

4 0
3 years ago
Humus represents _____ of the soil composition to 5% b) 60% c) 25% d) 15% e) 50%
Alex777 [14]

Answer:

The correct answer is B, 60%

Explanation:

Humus, which ranges in color from brown to black, consists of about 60 percent carbon, 6 percent nitrogen, and smaller amounts of phosphorus and sulfur

7 0
3 years ago
Identify the evolutionary forces that can cause allele frequencies to change from one generation to the next.
Irina-Kira [14]

<u> Allele frequencies to change from one generation to the next.-</u>

<u>B. </u><u>Mutation</u><u>; C. Random genetic drift; D. </u><u>Migration</u><u>; F. Natural selection</u>

  • Selection, mutation, migration, and genetic drift are the mechanisms that effect changes in allele frequencies.
  • When one or more of these forces are acting, the population violates Hardy-Weinberg assumptions, and evolution occurs.

Why do allele frequencies change from one generation to the next?

Random selection: Allele frequencies may fluctuate from one generation to the next when people with particular genotypes outlive those with different genotypes.

No mutation: Allele frequencies may fluctuate from one generation to the next if new alleles are produced via mutation or if alleles mutate at different rates.

What are 5 factors that cause changes in allele frequency?

  • A population, a collection of interacting individuals of a single species, exhibits a change in allele frequency from one generation to the next due to five main processes.
  • These include natural selection, gene flow, genetic drift, and mutation.

Learn more about allele frequency

brainly.com/question/7719918

#SPJ4

<u>The complete question is -</u>

Identify the evolutionary forces that can cause allele frequencies to change from one generation to the next. Check all that apply

A. Inbreeding

B. Mutation,

C. random genetic drift

D. migration

E. extinction

F. natural selection

6 0
2 years ago
Forming cell membranes is a<br> role of<br> A. testosterone<br> B. estrogen<br> C. phospholipids
Nesterboy [21]

Answer:

I think the answer is c because I had this question before and I think I got it right

7 0
3 years ago
Read 2 more answers
What are vestigial traits? what are homologous structures? what are analogous traits? can you explain these using the terms "ada
exis [7]
Vestigial traits are adaptations to environmental pressures which are no longer present.

homologous structures are similar structures found in different species that were present in a common ancestor.

analogous traits are similar traits found in different species that were developed independently (this process is known as convergent evolution)
7 0
3 years ago
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