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3 years ago

7

Which of the following structures does a fern have, but a flatworm and a human don't? (Points : 1) mitochondria nucleus chloropl

asts DNA

1 answer:

kotykmax [81]3 years ago

3 0

Chloroplasts. They are only in green plant cells, so, unless you are a green plant, humans and flatworms would not contain them.

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For each levels of classification for an organism, describe what it is made up of and the relation to the functions.

svetoff [14.1K]

Answer:

Cells,tissues,organs,organ systems, organism

Explanation:

Linnaeus Taxonomy Includes ,Domains.Each domain subdivided into ,Kingdom ,Phylum ,Class ,Order ,Family.Genus and Species.

Domain Bacteria: Bacteria,Archaea.They are unicellular organism,asexual reproduction,Some are autotrophs but most of them are heterotrophs.

Domain Eukarya has four kingdoms: Animalia, Plantae, Fungi, and Protista. . They are classified based on their cellular organization, their ability to obtain nutrients, and their mode of reproduction.

Kingdom Animalia: They are multicellular heterotrophs.Sexual reproduction,

Kingdom Plantae: It includes all plants and they are autotrophs. They.They make their own food .they are multicellular can reproduce sexually or asexually.

4 0

2 years ago

Proto‑oncogenes are genes that have the potential to become oncogenes through either mutation or an increase in expression. Clas

algol [13]

Answer:

<u>Proto-oncogenes</u>

These genes code for protein that normally promote cell division
Mutations that increase activity of these genes may lead to cancer

<u>Tumor suppressor genes</u>

These genes code for protein that normally prevent uncontrolled cell division
Some products of these genes normally function in repairing damaged DNA

Mutation that decrease activity of these genes may lead to cancer.

Explanation:

<em>Proto-oncogenes</em> are group of genes that ordinarily help cells develop. At the point when a proto-oncogene mutates or there are such a large number of duplicates of it, it turns into a "terrible" quality that can turn out to be forever turned on or activated when it shouldn't be. At the point when this occurs, the cell becomes wild, which can prompt malignant growth. This terrible quality is called an oncogene.

Tumor suppressor genes are normal gene that hinder cell division, fix DNA missteps, or tell cell when to undergo apoptosis (die). At the point when tumor suppressor gene don't work appropriately or inactivated, cells can develop uncontrollable growth, that ultimately lead to cancer.

7 0

3 years ago

Which of the following are types of small-scale mutations?<br> Put the things in order plz.

Korvikt [17]

Answer:

1. insertion

2. substitution

3. deletion

im in k12 !

5 0

2 years ago

How many millions of americans died from smoking-induced cardiovascular disease, from 1965-2014?

Furkat [3]

According to the repost made by US Surgeon General released in 2014, a total of 7,787,000 people died from smoking induced cardiovascular disease from 1965 to 2014. Cigarette smoking and second-hand tobacco smoke has been causally linked to cardiovascular diseases.

8 0

3 years ago

Explain how the bacteria and animals around the hydrothermal vents showed scientists that life was much more adaptable than they

lisov135 [29]

Explanation:

Well, its extremely hot in the hydrothermal vents. Scientists simply believed it would be impossible for anything to survive due to the heat. Bacteria and micro-organisms were able to adapt to growing there, though. So in short words, they survived extreme conditions teaching scientists that life was quite adaptable.

Weird fun fact: In Switzerland it is illegal to own just one guinea pig. Felt the need to mention that ^ Sorry, I know it has nothing to do with the question but i felt it was worth speaking of.

6 0

2 years ago