Biology Middle School

Which examples of artificial selection are caused by human activity without people even realizing it?

Answers

Answer 1

Answer: An increase of tuskless Asian elephants because of ivory poachingGrowing human organs from pig stem cells because of increased research on stem cell therapyA decrease in rams’ horn size because of hunters’ preference for long-horned ramsCows producing milk with more protein because of genetic engineeringChickens producing more meat because of selctive breeding

Answer 2
An increase of tuskless Asian elephants because of ivory poaching. Growing human organs from pig stem cells because of increased research on stem cell therapy.

Related Questions

A. Describe a procedure using these supplies that caleb may follow to test his
B. Explain the most likely reason caleb uses the same wooden block for each test
C. Identify the independent and dependent variables for this investigation

Answers

im not exactly sure what you're asking, if you could give more context that'd be great, But i tried to answer C as best as i could, and i don't have enough context for A or B. but anywho.

C. the dependent variable is the friction being created by caleb, and i think the independent variable is the time that the friction stays on each one of the planks.

:)

(sorry i couldn't fully answer your question, i don't have enough context for this)

Not enough information. You only showed us the questions.

I can answer the last question:
The independent variable is what you change, and the dependent variable is what changes because of that.

When looking at Blood type. When you have homozygous B

Would you write it as IBIB or IBi

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Answer: IBIB

Explanation:

u will write it as IBIB

Match the graph to the type of motion it describes.

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Answer: 1. b, 2. d, 3. c, 4. a

it would be b for #1, d for #2, c for #3, and a for #4

Friction always acts in a direction _____to the direction of motion.

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I think it’s opposite

It’s the opposite way

ok so i did some of it but can someone tell me if its right or not
thanks :))

Answers

Answer: so this is not an exact answer but i know how you can figure out if it is correct without technically "cheating" on it.

Explanation: so for the first one, you can search "Charles Darwin" or "what was Charles Darwin in the 1800's?" You can also pretty much just search key words in the sentence and figure out the answer.

Hope this Helps ;)

Nice work but 87% correct

What characteristics differentiate plants, protists, and fungi?
Science Giving 27 points

Answers

Answer:

Explanation:

Plants, protists, and fungi are all types of organisms, but they have some important differences.

Plants are multicellular organisms that have cell walls made of cellulose, chloroplasts for photosynthesis, and the ability to produce their own food through photosynthesis. They are typically terrestrial, meaning they live on land, and they have complex tissues and organs for support, reproduction, and nutrition.

Protists are a diverse group of eukaryotic organisms that are generally unicellular or multicellular. They are characterized by their simple cellular structures and lack of tissue differentiation. Protists can be photosynthetic, heterotrophic, or a combination of both. They are found in a variety of environments, including aquatic and terrestrial environments.

Fungi are eukaryotic organisms that are typically multicellular and lack chloroplasts. They are heterotrophic, meaning they obtain their nutrients by breaking down organic matter. Fungi have cell walls made of chitin and reproduce through the formation of spores. They are found in a variety of environments, including soil, water, and as symbionts in other organisms.

Overall, the main characteristics that differentiate plants, protists, and fungi are their cellular structure, mode of nutrition, and type of cell wall. Plants are multicellular, photosynthetic organisms with cell walls made of cellulose, protists are diverse and can be either photosynthetic or heterotrophic, and fungi are multicellular, heterotrophic organisms with cell walls made of chitin.

Answer: A characteristic could be that plant are there own type of species and is for fungi and protists.

use the term recessive and a sentence

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Sickle-cell anaemia is passed on through a recessive gene.
i inherited a recessive trait or gene from my mom.

How are species impacted when humans destroy their habitat? Give at least one example of a species that is being affected by humans

Answers

Answer: Polar Bears

Explanation: Global warming is making the earth warmer and humans are behind it. People drive cars which releases C02 into the air. This makes the earth warmer. Polar Bears are affected by it because their habitat is melting away.

Answer:

There are many species on earth but they go extinct quick due to people destroying their habitats. Animals like squirrels, birds, rodents, and other forest dwelling creatures are being affected through clearing of land for agriculture. Forests are ripped apart and removed so people can build homes and city’s all over the world.

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