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Rainbow [258]
3 years ago
13

Replace with new samples of the powders and repeat, this time adding drops of the base. Record observations in the table.

Biology
1 answer:
ycow [4]3 years ago
5 0
What they mean by "base" is the substance. A base is a substance that tastes bitter, has a pH that is greater than 7. It also turns red litmus paper blue. 

In conclusion, what they mean by 'base' is the substance included. 
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In ostriches, there are 2 types: ones that run fast and those that run slowly. The fast birds can reach up to 40 miles an hour.
liraira [26]

Answer:

Natural selection will select the type of ostriches that can run up to 40 mph.

Explanation:

According to the theory of natural selection, organisms with favorable traits following their environment are more likely to reproduce. In doing so, they pass on the better traits to their next generation for the survival of their species.

This process allows organisms to adapt to their environment. And the survival of species is assured.

Here, the type of ostriches that run slow probably fall prey to the jackals. To maintain survival, the ostriches reproduce and lay eggs. If out of almost a dozen eggs, one or two are left to hatch than the <em><u>chances of their survival</u></em> will greatly be affected if the hatching ostriches are of the <em>slow-running type</em>.

Therefore, natural selection may stay in favor of <em>fast-running ostriches</em> to hatch.

5 0
3 years ago
What kind of fossils can tell scientists what dinosaurs ate?
statuscvo [17]

Answer:

Coprolites are the type of fossils which can tell the scientist what dinosaurs ate.

Explanation:

A Coprolites is fossilized faeces.They are classified as trace fossils as opposed to body fossils as they give evidence for the animal's behaviour rather than morphology.This name is derived from Greek words.They were first described by William Buckland in 1829.

3 0
3 years ago
‌‌How‌ ‌can‌ ‌competition‌ ‌contribute‌ ‌to‌ ‌evolution‌ ‌through‌ ‌‌natural‌ ‌selection‌?‌ ‌
lisabon 2012 [21]

Answer:

Competition is an interaction between organisms or species in which both the organisms or ... According to evolutionary theory, this competition within and between species for resources is important in natural selection. However, competition may ... Competition can cause species to evolve differences in traits.

3 0
3 years ago
Read 2 more answers
will a point mutation or a frameshift mutation have a larger impact on the protein coded for by the DNA?
guapka [62]

Answer:

frameshift mutation (i think)

Explanation:

because it messes up the whole strand by deleting or inserting a base. honestly not 100% sure so take this with a grain of salt lol

5 0
2 years ago
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A fish swims with it's fins and breathes under water with it's gills.
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3 years ago
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