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tangare [24]
3 years ago
6

What is an example of excretion in mammals?

Biology
1 answer:
qaws [65]3 years ago
6 0
In mammals urine is expelled through the urethra which is part of the excretory system in unicellular organisms waste products are discharged directly through the surface of the cell
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Explain why temperature changes occur. <br> plz help
artcher [175]

Answer:

Hello! Sorry I am late! Here is my best answer below!

Temperature depends on the tilt of earth. The closer the earth is to the sun the warmer it gets. If the sun is not pointing at the place you live in the earth the temperature where you are will be colder. If the sun is pointing at the place you are the temperature will be warm. In conclusion, the temperature just depends on the tilt of earth towards or away from the sun.

Some more information:

At night you may discover that it is much colder than during the day. This is because the sun is not pointing at that half of the earth.

Explanation:

Hope this helped you! Have a great rest of your day or night and good luck on your work!

<3 <3 <3

4 0
3 years ago
Gregor Mendel's research consisted of using parent pea plants that were pure breeds. What genotype(s) would be considered pure b
laila [671]

Answer:

The genotypes thatwould be considered pure breeds are BB and bb

Explanation:

The genotype of an organism refers to an organism's complete set of genetic material or genes.

Genes are units of DNA that carries information for a particular physical or functional trait or character in an organism. Some genes act as instructions to make proteins while some genes do not code for proteins. The proteins made by a gene expresses the traits and characters of that organisms. Genes for a particular trait may have one or more variants known as alleles.

In Gregor Mendel's research using pea plants, flower colour in a pea plant had two different alleles; one for red flower colour and one for white flower colour. If a plant had the same allele for flower colour, the plant was considered a pure breed.

For example, given B was the allele for red flower colour and b was the allele for white flower colour, a plant having the two alleles for white flower colour bb, is a pure breed. Similarly, a plant having the two alleles for red flower colour, BB is a true breed.

8 0
3 years ago
Hey guys if you answer this in the next 12 hours ill give 50 points and brainiest so here it is, the subject is water and the en
Xelga [282]

1: I believe is B.

2: I believe is True

3: I believe is D.

4: I believe is D.

5: I'm not completely sure about this one, because it depends on the substance.  Rocks molecules don't move because the object is solid, no matter how cold or hot the rock is.  But if I were to guess, I would say True.

6: I believe is A.

7: I believe is B.

8: I believe is False.

9: I believe is False.

10: I believe is C.

11: I believe is False.

12: I believe is C.

13: I believe is A.

14: I believe is A.

I really hope I got all of these correct.  Hope this helped!

-TTL

3 0
3 years ago
Read 2 more answers
What is a substrate?
likoan [24]
 a substrate is the surface on which an organism (such as a plant, fungus, or animal) lives. A substrate can include biotic or abiotic materials and animals. For example, encrusting algae that lives on a rock (its substrate) can be itself a substrate for an animal that lives on top of the algae.

Hope this helped :)
5 0
3 years ago
What are the two functions of the nucleus?
raketka [301]

1) Store the cells DNA

2) Control cell division and cell growth

3 0
3 years ago
Read 2 more answers
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