1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ryzh [129]
3 years ago
15

What atomspheric gas is used by marine organisms to make their shells

Biology
2 answers:
scoray [572]3 years ago
4 0
Carbon dioxide is an answers
 
NARA [144]3 years ago
3 0
That would be CO2 also known as carbon dioxide.
You might be interested in
Three lines of evidence that provide support for common ancestry and evolution are Similar embryology, Molecular homologies, and
grin007 [14]

Answer:

What Is the Evidence for Evolution? Darwin used multiple lines of evidence to support his theory of evolution by natural selection -- fossil evidence, biogeographical evidence, and anatomical evidence.  Comparative embryology is the study of the similarities and differences in the embryos of different species. Similarities in embryos are likely to be evidence of common ancestry. All vertebrate embryos, for example, have gill slits and tails. ... In humans, the tail is reduced to the tail bone.  

Image result for Three lines of evidence that provide support for common ancestry and evolution are Similar embryology, Molecular homologies, and The Fossil Record.

Molecular similarities provide evidence for the shared ancestry of life. DNA sequence comparisons can show how different species are related. Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved.

7 0
2 years ago
Read 2 more answers
How many amino acids could be specified if codons consisted of two nucleotides instead of three? What problem would this present
Greeley [361]

Answer:

This could result in a mutation.

Explanation:

A change in the DNA can affect the work of cells because it can cause a mutation; it can be a good mutation or bad. The three main mutations that occur are Insertion, Deletion and Substitution. Insertion is when DNA base(s) are added in, Deletion is when DNA base(s) are removed. Lastly, Substitution is when DNA base(s) are switched on. All of these mutations can have effects. These effects are Silent effect, Missence, and Nonsense. Silent effect is a mutation that does not change the sequence of amino acids in a protein. Missence is a mutation that causes the sequence of amino acids to change. This can cause incorrect protein folding and protein malfunction. Nonsense is a mutation that causes an early stop codon. This effect leads to a protein that is too small. Also a Frameshift can occur. Framshift is when the reading of a frameshift is moved over by one or more bases such that every subsequent amino acid changes. An example of a frameshift is THE CAT ATE THE RAT. If you insert an A at the Beginning this happens ATH ECA TAT ETH ERA T. IN Conclusion there are two Mutations that also play a role in this Point Mutation and Chromosomal Mutaion. Point Mutation is when a single DNA base is either substituted, inserted or deleted from the sequence. Chromocomal Mutation is when large pieces of a chromosome or an entire chromosome is either substituted, inserted or deleted.

7 0
3 years ago
Which of the following best describes gene flow
masha68 [24]

Answer:

When animals immigrate into another breeding population they may bring with then alleles that are rare or unknown in the population they breed into.

Explanation:

Gene flow is the movement of genes from one population to another population. Examples of this include a bee carrying pollen from one flower population to another, or a caribou from one herd mating with members of another herd. Genes can come in different forms called alleles.

Also, I didn't see the list of choices.

3 0
3 years ago
Which greenhouse gas is created by humans executively
TEA [102]

Answer:

Carbon dioxide

Explanation:

3 0
3 years ago
When an occlusion of the coronary vessel occurs, the person experiences a?
marusya05 [52]
Hey there Merlinemicheli3271,

When an occlusion of the coronary vessel occurs, the person experiences a?

Answer:

Myocardial Infarction 

Hope this helps :D

<em>~Natasha♥</em>
7 0
3 years ago
Other questions:
  • Substances that are sour in taste​
    14·1 answer
  • What does the principle of uniformitarianism state?
    7·1 answer
  • Individual strata are formed over long periods of time due to what process
    14·1 answer
  • Which of the following organelles is most likely to affect apoptosis?
    9·1 answer
  • The cladogram shown here shows similarities and differences among several classes of vertebrates. Anatomically, the four have __
    11·2 answers
  • I need help on this question in biology and biology is hard and confusing
    11·2 answers
  • Scientists know that organisms that are more closely related will have DNA sequences more similar to each other than organisms t
    7·2 answers
  • HELPPPP
    15·1 answer
  • The planting of trees is detrimental to soil because it drains the soil of nutrients.
    14·1 answer
  • Argentine ants are invasive ants found in California. They’re aggressive in nature and have a tendency to protect crop pests. In
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!