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Afina-wow [57]
4 years ago
13

What changes in sewage disposal did the commission recommend?

Biology
1 answer:
Tanya [424]4 years ago
5 0

Answer:

Sewage-contaminated water causes eutrophication, which is the increase in concentration of chemical elements required for life. The nitrates, phosphates, and organic matter found in human waste serves as a food for algae and bacteria.

Explanation:

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A neuron that carries impulses away from the central nervous system is a:
nirvana33 [79]
The answer is sensory neurons

7 0
4 years ago
The endosymbiosis hypothesis is supported by all of the following pieces of evidence except the fact that Group of answer choice
igomit [66]

Answer:

The correct answer is - mitochondria lack ribosomes like prokaryotes.

Explanation:

The Endosymbiotic Theory says that mitochondria and chloroplast in eukaryotic cells are developed by the once aerobic bacteria that were engulfed by a large anaerobic bacteria.

This theory suggests the origin of eukaryotic cells. Various evidence exists such as mitochondria and chloroplasts contain their own circular DNA like prokaryotic cells and mitochondria and chloroplasts have 70S ribosomes like prokaryotes have.

4 0
3 years ago
Which best describes a scientific theory?
DENIUS [597]

Answer:

Hey there!

A theory can be best described as an idea that is supported by many different experiments.

Let me know if this helps :)

7 0
3 years ago
You decide to designate the alleles of the four loci as either additive (contributing to fruit segment number and represented by
Aleks [24]

Answer:

The correct genotype of the  two pure lines and the F1 is:

A⁺A⁺B⁰B⁰C⁰C⁰D⁰D⁰   and A⁰A⁰B⁺B⁺C⁺C⁺D⁺D⁺

The number of additive alleles on each genotype are two and six respectively.

Explanation:

Locus( plural form . loci) are fixed point on a chromosome in which genes are located. These genes are specific genetic material or genotype.

Now;

If we decide to designate the allele of the four loci into either additive (⁺) or non-additive(⁰); we have the following :

Let's the allele of the four loci to be

A⁺/A⁰, B⁺/B⁰, C⁺/C⁰ and D⁺/D⁰

However, from the diagram below; we deduce that the correct genotype for the two pure lines and the F1 is as follows:

A⁺A⁺B⁰B⁰C⁰C⁰D⁰D⁰   and A⁰A⁰B⁺B⁺C⁺C⁺D⁺D⁺ and the number of additive alleles on each genotype are two and six respectively.

The cross between both F1 traits will yield an heterozygous individual for the offspring. i.e A⁺A⁰B⁺B⁰C⁺C⁰D⁺D⁰ with only four additive allele

3 0
3 years ago
Why rhizoids not called roots?
garik1379 [7]
Most plants have roots, but there are some
exceptions. The exceptions are bryophytes
and the groups of green algae that are
classified as plants. Bryophytes have rootlike
structures called rhizoids for absorbing
water, but because rhizoids lack vascular
tissue they are not considered roots.
4 0
4 years ago
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